CN107332674B - A USB3.0 HUB using ultra-high frequency microwave isolation - Google Patents
A USB3.0 HUB using ultra-high frequency microwave isolation Download PDFInfo
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- CN107332674B CN107332674B CN201710676653.5A CN201710676653A CN107332674B CN 107332674 B CN107332674 B CN 107332674B CN 201710676653 A CN201710676653 A CN 201710676653A CN 107332674 B CN107332674 B CN 107332674B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/02—Details
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- G—PHYSICS
- G06—COMPUTING OR CALCULATING; COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
- G06F13/38—Information transfer, e.g. on bus
- G06F13/382—Information transfer, e.g. on bus using universal interface adapter
- G06F13/385—Information transfer, e.g. on bus using universal interface adapter for adaptation of a particular data processing system to different peripheral devices
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- G—PHYSICS
- G06—COMPUTING OR CALCULATING; COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
- G06F13/38—Information transfer, e.g. on bus
- G06F13/40—Bus structure
- G06F13/4004—Coupling between buses
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- G—PHYSICS
- G06—COMPUTING OR CALCULATING; COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
- G06F13/38—Information transfer, e.g. on bus
- G06F13/42—Bus transfer protocol, e.g. handshake; Synchronisation
- G06F13/4282—Bus transfer protocol, e.g. handshake; Synchronisation on a serial bus, e.g. I2C bus, SPI bus
- G06F13/4286—Bus transfer protocol, e.g. handshake; Synchronisation on a serial bus, e.g. I2C bus, SPI bus using a handshaking protocol, e.g. RS232C link
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
- H04B1/40—Circuits
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- G—PHYSICS
- G06—COMPUTING OR CALCULATING; COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2213/00—Indexing scheme relating to interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
- G06F2213/0042—Universal serial bus [USB]
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- G—PHYSICS
- G06—COMPUTING OR CALCULATING; COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2213/00—Indexing scheme relating to interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
- G06F2213/38—Universal adapter
- G06F2213/3852—Converter between protocols
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Abstract
一种采用极高频微波进行隔离的USB3.0 HUB，包括一个USB3.0微波发送端和一个USB3.0微波接收端，采用频率范为60GHz的极高频EHF(Extremely High Frequency)，两者之间通信的微波通信可以通过自定义通信规则进行自动协商，在USB3.0微波接收端的USB3.0 HUB可以同时连接四个超高速USB3.0终端外设；在USB3.0微波通信过程中，微波传输设备不会在数据流中加入任何附加的数据，因此USB3.0信号使用微波传输设备在传输过程中是透明的，所有符合USB3.0标准的超高速USB3.0终端外设都可以正常连接。
A USB3.0 HUB using extremely high frequency microwaves for isolation includes a USB3.0 microwave transmitting end and a USB3.0 microwave receiving end. The extremely high frequency EHF (Extremely High Frequency) with a frequency range of 60GHz is used. The microwave communication between the two can be automatically negotiated through custom communication rules. The USB3.0 HUB at the USB3.0 microwave receiving end can connect four ultra-high-speed USB3.0 terminal peripherals at the same time. During the USB3.0 microwave communication process, the microwave transmission device will not add any additional data to the data stream. Therefore, the USB3.0 signal is transparent during the transmission process using the microwave transmission device, and all ultra-high-speed USB3.0 terminal peripherals that meet the USB3.0 standard can be connected normally.
Description
Technical Field
The invention relates to the field of USB3.0 communication, in particular to the technical field of isolated communication between various USB3.0 terminal devices and computers, and particularly relates to a USB3.0 HUB isolated by using extremely high frequency microwaves.
The invention also relates to a control method for microwave communication between the USB3.0 microwave transmitting end and the USB3.0 microwave receiving end.
Background
As the requirements of industrial electronic devices for data exchange speeds become higher, more and more industrial devices are beginning to be
The use of USB interfaces has also increased the reliability requirements for communications. However, the existing USB communication circuit has poor capability of resisting the interference of the operating environment, is extremely easy to be interfered by static electricity and electromagnetic waves in the industrial environment, and due to the complexity of the industrial environment, the level of interfaces of a host end and equipment can be different, the equipment on both sides can not work normally after connection, and the interference on any side can be transmitted to the host/equipment end along the USB interface, so that the whole system is easy to be seriously damaged, and the power supply and signal isolation protection device widely used at home and abroad at present is mainly divided into three types, namely, photoelectric isolation type, transformer isolation type and capacitance isolation type.
At present, a plurality of semiconductor companies at home and abroad provide solutions for isolating USB2.0 signals, but the price is high, the scheme design is complex, and the method is extremely difficult to popularize to practical application. Moreover, as the transmission speed of the USB3.0 is greatly improved, the theoretical transmission speed is as high as 5Gbps (i.e. 625 MB/s) based on the full duplex data transmission protocol, the actual data transmission speed is as high as 3.2Gbps (i.e. 400 MB/s), and the current USB3.1 Gen2 standard improves the transmission speed to 10Gbps by nearly 10 times compared with the USB2.0, so that the transmission distance of data meets the unprecedented challenges.
For example, chinese patent application number 201410572419.4 provides a full-speed USB3.0 interface isolation protection device, and the transformer isolation of this device is compared with the photoelectric isolation, and although the transmission speed has been improved to 5Gbps, because of adopting inductance element, there is the risk of voltage transformer coupling, and the safety isolation that the medical field required can not be completely realized.
In the medical field, 4000V electrical isolation is needed between the measuring equipment and the computer due to safety consideration, and some transformers can be used for coupling isolation in the past for USB2.0 and USB3.0, but as the transmission rate is increased to 5 Gbps-10 Gbps, the traditional transformer coupling isolation scheme cannot adapt to the transmission of 5 Gbps-10 Gbps, and the transformer coupling has certain defects on the electrical isolation, so that the electrical isolation is not as good as the photoelectric coupling mode and the microwave coupling mode, and the photoelectric coupling mode and the microwave coupling mode can achieve complete electrical isolation, but the photoelectric coupling mode has a slow rate and can only be used for 12Mbps. In the field of microwave communication, the frequency range is within the frequency band of 30-300GHz, the wavelength is shorter than the electromagnetic wave signal of ultrahigh frequency (SHF), which is called as extremely high frequency EHF (Extremely High Frequency), the wavelength is from 1mm to 10mm, and the method is mainly applied to the aspects of weather radar, space communication, radio astronomy and the like.
Disclosure of Invention
The invention aims to solve the technical problem of providing the USB3.0 HUB which adopts extremely high frequency microwaves for isolation and supports isolated communication transmission between various USB3.0 terminal devices and computers, and can realize safe electric isolated connection between the various USB3.0 terminal devices and the computers.
The technical scheme adopted by the invention is that the USB3.0 HUB adopting extremely high frequency microwave isolation comprises a USB3.0 microwave transmitting end and a USB3.0 microwave receiving end, extremely high frequency EHF (Extremely High Frequency) with the frequency range of 60GHz is adopted, microwave communication between the USB3.0 microwave transmitting end and the USB3.0 microwave receiving end can be automatically negotiated through a custom communication rule, the USB3.0 HUB of the USB3.0 microwave receiving end can be simultaneously connected with four ultra-high-speed USB3.0 terminal peripherals, ultra-high-speed data differential interfaces of the USB3.0 interface are SSTX +/-SSRX +/-, the ultra-high-speed communication link of the USB3.0 is realized, the speed can be increased to 10Gbps, the chip non-contact direct signal coupling distance can reach 5cm, if other waveguide materials are adopted, the transmission distance can be prolonged by a few meters to a distance of tens of meters, data transmitted by the technical scheme of the invention is in a primary USB3.0 data format, in the USB3.0 microwave communication process, in order to ensure compatibility and universal applicability, the ultra-high-speed data can not be converted into the primary USB3.0 data format by a USB3.0 main control chip, and the ultra-high-speed data can be converted into the ultra-high-speed data format by the USB3.0 device, and the ultra-high-speed data can be converted into the ultra-high-speed data signal by the USB3.0 device, and the ultra-high-speed data can be transmitted by the ultra-high-speed data can be converted into the ultra-speed data 3.0 data, and the normal data and the USB3.0 device, and the ultra-high-speed data can be transmitted by the USB3.0 data.
Accordingly, another technical problem to be solved by the present invention is to provide an auto-negotiation method for microwave communication between a USB3.0 microwave transmitting end and a USB3.0 microwave receiving end.
According to the scheme, the USB3.0 microwave transmitting end comprises a USB3.0 uplink interface, a USB3.0 EHF transceiver, an MCU control unit, an LED indicating circuit, a management interface circuit, a detection circuit and a power supply unit.
The USB3.0 uplink interface is used for connecting with a USB3.0 main controller of a computer host.
Preferably, the USB3.0 EHF transceiver is composed of a KSS104-TX and a KSS104-RX, the KSS104 series chip includes an EHF microwave transmitter and an EHF microwave receiver, and can be configured into a transmitting mode or a receiving mode as required, the operating rate of the KSS104 series chip can reach 6Gbps, and the other chip types of the same type can reach 12Gbps, so that the USB3.1 Gen2 requirement can be met, the KSS104 series chip integrates an electromagnetic waveguide inside, so that a microwave antenna is not required to be externally connected, the circuit is simplified considerably, the chip area is only 5mm x 5mm, the KSS104-TX is used for converting the USB3.0 electric signal output by the USB3.0 main controller of the host computer into an extremely high frequency microwave signal, and the KSS104-RX is used for converting the received extremely high frequency microwave signal into the USB3.0 electric signal to be transmitted to the signal input end of the USB3.0 main controller of the host computer.
The MCU control unit is used for controlling handshake connection and chip reset of the USB3.0 microwave transmitting end and the USB3.0 microwave receiving end and a USB3.0 main controller of the computer host, controlling the power supply unit to realize power supply control and fault diagnosis of the USB3.0 terminal equipment, realizing transmission of control instructions of the USB3.0 terminal equipment, and realizing digital diagnosis management of the USB3.0 microwave transmitting end and the USB3.0 microwave receiving end by combining a management interface.
The LED indication circuit is used for indicating information such as communication state, fault condition and the like.
The management interface circuit is connected to an external USB2.0 port to realize that USB2.0 is converted into an RS-232 interface, and the RS-232 interface is connected to an RS-232 serial port of the MCU control unit and is used for realizing digital diagnosis management of the USB3.0 microwave transmitting end and the USB3.0 microwave receiving end at the computer host end.
The detection circuit is characterized in that a pair of Hall sensors, a magnetic element and a pair of receiving and transmitting optocoupler elements are arranged at the USB3.0 microwave transmitting end, the USB3.0 microwave transmitting end and the USB3.0 microwave receiving end can be in bidirectional communication through the optocoupler elements, the Hall sensors and the magnetic element are used for establishing physical connection between the USB3.0 microwave transmitting end and the USB3.0 microwave receiving end, when the magnetic element of the USB3.0 microwave receiving end is close to the Hall sensors of the USB3.0 microwave transmitting end, the Hall sensors can output a fixed level signal for determining that the USB3.0 microwave transmitting end and the USB3.0 microwave receiving end are close to each other in an effective interval, and accordingly connection requests can be initiated according to the signal.
The power supply unit can realize automatic switching between USB3.0 interface power supply and external power supply and provides power for the USB3.0 EHF transceiver, the MCU control unit, the LED indication circuit, the management interface, the detection circuit, the USB3.0 microwave receiving end and USB3.0 terminal equipment thereof.
According to the scheme, the USB3.0 microwave receiving end comprises a USB3.0 downlink interface, a USB3.0 HUB main control chip, a USB3.0 EHF transceiver, an MCU control unit, an LED indicating circuit, a detecting circuit and a power supply unit.
The USB3.0 downlink interface is provided with at least one port used for connecting with USB3.0 terminal equipment.
Preferably, the USB3.0 HUB main control chip is μpd720210, the transmission requirement of USB3.1 Gen2 Gbps can be met by replacing the USB3.1 HUB main control chip VL820, and the uplink port of the USB3.0 HUB main control chip is connected to a microwave signal, and the USB3.0 HUB main control chip includes a SIE (serial interface engine), a control, a processing conversion, a relay, a routing, an AES encryption and decryption, and the like, which are used to implement functions of routing, data forwarding, power management, and the like for accessing to USB3.0 terminal equipment, and four downlink interfaces of the USB3.0 HUB main control chip are used to connect to four standard USB3.0 terminal equipment, such as a USB3.0 industrial printer, a USB3.0 camera, a USB3.0 mobile hard disk, a USB3.0 mobile USB3.0 endoscope, and other standard USB3.0 peripherals.
The USB3.0 EHF transceiver consists of a KSS104-TX and a KSS104-RX, wherein the KSS104 series chip internally comprises an EHF microwave transmitter and an EHF microwave receiver and can be configured into a transmitting mode or a receiving mode according to the requirement, the working speed of the KSS104 series chip can reach 6Gbps, the type of the KSS104 series chip can reach 12Gbps after the same type of the KSS104 series chip is replaced, so that the 10Gbps speed required by USB3.1 Gen2 can be met, an electromagnetic waveguide is integrated in the KSS104 series chip, a microwave antenna is not required to be externally connected, the circuit is greatly simplified, the chip area is only 5mm x 5mm, the KSS104-TX is used for converting a USB3.0 electric signal output by an uplink interface of a USB3.0 HUB main control chip into an extremely high frequency microwave signal, and the KSS104-RX is used for converting the received extremely high frequency microwave signal into the USB3.0 electric signal to be transmitted to an uplink interface signal input end of the USB3.0 HUB main control chip.
The MCU control unit is used for controlling handshake connection and chip reset of the USB3.0 microwave transmitting end and the USB3.0 microwave receiving end and a USB3.0 main controller of the computer host, controlling the power supply unit to realize power supply control and fault diagnosis of the USB3.0 terminal equipment, realizing transmission of control instructions of the USB3.0 terminal equipment, and realizing digital diagnosis management of the USB3.0 microwave transmitting end and the USB3.0 microwave receiving end by combining a management interface.
The LED indication circuit is used for indicating information such as communication state, fault condition and the like.
The management interface circuit is connected to an external USB2.0 port to realize that USB2.0 is converted into an RS-232 interface, and the RS-232 interface is connected to an RS-232 serial port of the MCU control unit and is used for realizing digital diagnosis management of the USB3.0 microwave transmitting end and the USB3.0 microwave receiving end at the computer host end.
The detection circuit is characterized in that the USB3.0 microwave receiving end is provided with a pair of Hall sensors, a magnetic element and a pair of receiving and transmitting optocoupler elements, the USB3.0 microwave transmitting end and the USB3.0 microwave receiving end can be in bidirectional communication through the optocoupler elements, the Hall sensors and the magnetic element are used for establishing physical connection between the USB3.0 microwave transmitting end and the USB3.0 microwave receiving end, when the magnetic element of the USB3.0 microwave receiving end is close to the Hall sensors of the USB3.0 microwave transmitting end, the Hall sensors can output a fixed level signal for determining that the USB3.0 microwave transmitting end and the USB3.0 microwave receiving end are close to each other in an effective interval, and accordingly connection requests can be initiated according to the signal.
The power supply unit provides power for the USB3.0 EHF transceiver, the MCU control unit, the LED indication circuit, the detection circuit and the USB3.0 terminal equipment.
The automatic negotiation method for microwave communication between the USB3.0 microwave transmitting end and the USB3.0 microwave receiving end is a method for establishing a correct communication link between a computer host and a USB3.0 terminal device after computer startup and shutdown and restarting due to mutual separation of the USB3.0 microwave transmitting end and the USB3.0 microwave receiving end in the process of transmitting USB3.0 data by using microwaves through a singlechip programming technology and formulating relevant communication rules.
The USB3.0 microwave communication is a full duplex bidirectional communication, if the USB3.0 microwave transmitting end and the USB3.0 microwave receiving end are separated from each other, the computer host and the USB3.0 HUB master control chip of the far-end USB3.0 microwave receiving end need to reestablish connection, at the moment, the two sides can initiate low-speed LFPS signals again to carry out handshake connection, so as to determine the connection state, but at the moment, if the USB3.0 HUB master control chip of the USB3.0 microwave receiving end does not exit from the ultra-high-speed link state yet, the USB3.0 master controller connected with the USB3.0 microwave transmitting end receives not LFPS data signals but ultra-high-speed data packets, so that negotiation failure is caused, and the port of the USB3.0 master control chip connected with the USB3.0 microwave transmitting end of the computer is halted, so that the USB3.0 HUB master control chip of the USB3.0 microwave receiving end and external USB3.0 terminal equipment cannot be identified.
The USB3.0 microwave transmitting end and the USB3.0 microwave receiving end always encounter the problem that after the computer host is turned off, restarted and the computer host is turned off for a long time in the communication process, when the computer host reenters an operating system, the problem that the USB3.0 microwave transmitting end and the USB3.0 microwave receiving end are always connected with the computer host in a failure mode often occurs, and the computer host possibly prompts the USB3.0 device to be compliant but not linked or does not have linking action at all, so that the problem is caused by that after the computer host exits from the system, the communication state of the USB3.0 microwave transmitting end and the USB3.0 microwave receiving end does not enter an LFP negotiation state and is always in a normal ultrahigh-speed link state, and when the computer host reenters the system, the USB3.0 main controller of the computer host is in a low-speed communication mode with the USB3.0 microwave receiving end, but the USB3.0 main controller of the actual computer host firstly receives ultrahigh-speed data packets transmitted by the USB3.0 microwave transmitting end, so that all USB3.0 main controllers of the computer host cannot be externally connected with the USB3.0 main controller, so that all the computer host cannot find out the USB3.0 terminal of the USB terminal.
The present invention is herein defined as an auto-negotiation method for microwave communication between a USB3.0 microwave transmitting end and a USB3.0 microwave receiving end, as shown in the following items 1 to 6.
1. The microwave signal receiver of the USB3.0 microwave transmitting end always receives the microwave signal before the microwave signal receiver of the USB3.0 microwave receiving end, after the microwave signal receiver of the USB3.0 microwave transmitting end is connected and interrupted, the MCU control unit sends out a control command to enable the microwave signal transmitter of the USB3.0 microwave transmitting end to be always in a forbidden transmitting state, the microwave signal receiver of the USB3.0 microwave receiving end can not receive the microwave signal and then outputs a low-level state indication signal RECEIVE READY to an RX_RDY input pin of the MCU control unit of the receiving end, and the MCU control unit sends out a control command to enable an uplink interface of the USB3.0 HUB main control chip to be disconnected, so that the USB3.0 HUB main control chip enters a standby state, and the USB3.0 HUB main control chip can not send out ultra-high-speed data packets, but the microwave signal transmitter of the USB3.0 microwave receiving end is always in a transmitting state.
After the USB3.0 microwave transmitting end and the USB3.0 microwave receiving end are separated, a physical connection detection circuit of the USB3.0 microwave transmitting end and the USB3.0 microwave receiving end sends out control signals, so that the USB3.0 microwave transmitting end and the USB3.0 microwave receiving end are in a power-down state, and the MCU control unit sends out control instructions according to the output signals of the detection circuits, so that the link connection between the USB3.0 uplink interface of the USB3.0 microwave transmitting end and the USB3.0 main controller of the computer host is interrupted.
3. After the USB3.0 microwave transmitting end and the USB3.0 microwave receiving end reestablish physical connection, the physical connection detection circuits of the USB3.0 microwave transmitting end and the USB3.0 microwave receiving end send control signals, so that the USB3.0 microwave transmitting end and the USB3.0 microwave receiving end are in a power-on state, a microwave signal receiver of the USB3.0 microwave transmitting end receives microwave signals sent by the USB3.0 microwave receiving end, the microwave signal receiver sends a state indication signal RECEIVE READY to an RX_RDY of a transmitting end MCU control unit, the MCU control unit sends control signals to enable the microwave signal transmitter of the USB3.0 microwave transmitting end, the microwave signal transmitter of the USB3.0 microwave transmitting end sends a link initialization signal to the USB3.0 microwave receiving end, the microwave signal receiver of the USB3.0 microwave receiving end outputs a high-level state indication signal RECEIVE READY to an RX_RDY of the receiving end MCU control unit, the MCU control unit sends VBUS_DET enabling signals to the USB3.0 HUB main control chip, and accordingly the USB3.0 HUB main control chip enters a connection state, and after the USB3.0 main control chip receives the microwave signal, the microwave signal receiver negotiates to the corresponding LFACS host computer, and the USB3.0 main control chip can successfully send a link to the USB host computer after the USB3.0 main control chip receives the corresponding signals.
4. When the external power supply is adopted for supplying power, if the data wire of the USB3.0 microwave transmitting end and the USB3.0 main control chip of the computer host is pulled out, the MCU control unit of the USB3.0 microwave transmitting end sends an instruction to the power supply unit, so that the microwave signal transmitter of the transmitting end is in a forbidden transmitting state, the power supply of the USB3.0 microwave receiving end is cut off, the power consumption is reduced, when the data wire connected with the computer host is reconnected, and the computer host is in a starting state, under the condition that the USB3.0 port is normally powered, the MCU control unit of the USB3.0 microwave transmitting end sends an instruction to the power supply unit, the power supply of the USB3.0 microwave receiving end is recovered, and the microwave signal transmitter of the USB3.0 microwave receiving end sends a link initialization signal.
5. If the USB3.0 terminal equipment of the USB3.0 microwave receiving end works abnormally, the computer host can send an instruction to the MCU control unit of the sending end through the management interface, the MCU control unit of the sending end transmits the instruction to the MCU control unit of the receiving end through the optocoupler circuit, further, the MCU control unit of the receiving end sends a port power state detection instruction to the power supply unit of the receiving end through the power management PM_OUT signal output pin, and if no current overload condition exists, a port power restarting instruction is sent, so that the USB3.0 terminal equipment is subjected to cold start.
6. Under the condition that the input signal detection of the microwave transmitting chip is overtime and the input signal detection of the microwave receiving chip is overtime, the chip can enter a standby state, if the input signal of the microwave transmitting chip is detected again, the chip can immediately exit the standby state to enter the active state, and if the input signal of the microwave receiving chip is detected again, the chip can immediately exit the standby state to enter the active state.
The method can well solve the problem of compatibility in the using process.
The invention has the advantages that the invention provides the USB3.0 HUB which is isolated by adopting the extremely high frequency microwave and supports the isolated communication transmission between various USB3.0 terminal devices and computers, the coupling distance can reach 5cm, the advantages are obvious in the field of high-voltage signal isolation application because of no self-inductance effect of transformer coupling, the invention realizes complete electrical isolation, and for the application such as USB3.0 endoscope, the safety is higher compared with other modes, the invention can realize the connection of various USB3.0 terminal devices and hosts, the operator can realize the diagnosis operation of the USB3.0 terminal devices through the management interface, the transmitted data is in the native USB3.0 data format, the USB3.0 data transmitted by the USB3.0 main controller, the USB3.0 HUB main control chip and the USB3.0 terminal devices are not converted into other formats and re-encoded and re-decoded for transmission, and all terminals conforming to the USB3.0 standard can be normally connected, and the invention has the advantages of prolonging the transmission distance of USB3.0 and electromagnetic interference resistance.
Drawings
Fig. 1 is a schematic block diagram of the system application of the present invention.
Fig. 2 is a schematic block diagram of a USB3.0 microwave transmitting end of the present invention.
Fig. 3 is a schematic block diagram of a USB3.0 microwave transmitting end KSS104-TX chip of the present invention.
Fig. 4 is a schematic block diagram of a USB3.0 microwave transmitting end KSS104-RX chip according to the present invention.
Fig. 5 is a USB3.0 microwave transmitting end MCU control unit of the present invention.
Fig. 6 is a USB3.0 microwave transmitting end power supply unit of the present invention.
FIG. 7 is a diagram of a USB3.0 microwave transmitter detection circuit according to the present invention.
Fig. 8 is a USB3.0 microwave sender management interface of the present invention.
Fig. 9 is a schematic block diagram of a USB3.0 microwave receiving terminal according to the present invention.
Fig. 10 is a schematic block diagram of a USB3.0 microwave receiver KSS104-TX chip according to the present invention.
Fig. 11 is a schematic block diagram of a USB3.0 microwave receiver KSS104-RX chip according to the present invention.
Fig. 12 is a schematic block diagram of a USB3.0 HUB master chip at a USB3.0 microwave receiving end according to the present invention.
Fig. 13 is a control unit of the MCU at the USB3.0 microwave receiving end of the present invention.
Fig. 14 is a USB3.0 microwave receiving end power supply unit of the present invention.
FIG. 15 is a diagram of a USB3.0 microwave receiver detection circuit according to the present invention.
Detailed Description
For a better understanding of the present invention, reference is made to the following description of the invention taken in conjunction with the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting thereof. It should be further noted that, for convenience of description, only some, but not all of the circuit structures related to the present invention are shown in the drawings.
A USB3.0 HUB isolated by ultra-high frequency microwaves comprises a USB3.0 microwave transmitting end and a USB3.0 microwave receiving end, wherein the ultra-high frequency EHF (Extremely High Frequency) with the frequency of 60GHz is adopted, the microwave communication between the two microwave transmitting ends can be automatically negotiated through a custom communication rule, four ultra-high-speed USB3.0 terminal peripherals can be simultaneously connected to the USB3.0 HUB of the USB3.0 microwave receiving end, ultra-high-speed communication links of the USB3.0 are realized by utilizing an ultra-high-speed data differential interface SSTX +/-SSRX +/-, the speed can be increased to 10Gbps, the chip non-contact direct signal coupling distance can reach 5cm, if other waveguide materials are adopted, the transmission distance can be prolonged by a distance of several meters to tens of meters, the data transmitted by adopting the technical scheme of the invention are in a primary USB3.0 data format, in the USB3.0 microwave communication process, in order to ensure compatibility and universal applicability, the ultra-high-speed data can not be converted into the primary data format by a USB3.0 main controller, a USB3.0 main control chip and a USB3.0 HUB terminal, and a device can be converted into the ultra-high-speed data by using a new device, and the ultra-high-speed data can be transmitted by the USB3.0 device, and the ultra-high-speed data can be converted into the ultra-high-speed data can be transmitted by the normal data transmission device, and the ultra-high-speed data can be converted into the data by the USB3.0, and the normal device, and the microwave data can be transmitted by the ultra-high-speed data transmission device.
Referring to fig. 1, the USB3.0 HUB adopting the extremely high frequency microwave isolation comprises a USB3.0 microwave transmitting end and a USB3.0 microwave receiving end, wherein the USB3.0 microwave transmitting end consists of an EHF transceiver 2, a control circuit 4 and a power circuit 3, and the USB3.0 microwave receiving end consists of a USB3.0 downlink interface 5, a USB3.0 HUB main control chip 6, an EHF transceiver 7, a control circuit 8 and a power circuit 9.
The USB3.0 electric signal output by the USB3.0 main controller 1 of the computer host is converted into an extremely high frequency microwave signal through an internal microwave transmitting circuit TX of an EHF transceiver 2 of the USB3.0 microwave transmitting end and transmitted to a microwave receiving end RX of a USB3.0 EHF transceiver 7 of the USB3.0 microwave receiving end, the extremely high frequency microwave signal transmitted by the other party is converted into an USB3.0 electric signal through the microwave receiving end RX of the EHF transceiver 2 of the USB3.0 microwave transmitting end and transmitted to a signal input end of the USB3.0 main controller 1 of the computer host, a control circuit 4 of the USB3.0 microwave transmitting end comprises an MCU control unit 14, a detection circuit 17, an LED indicating unit 15 and a management interface 16 and is mainly responsible for communication negotiation, power supply control, system management and fault display, and the power circuit 3 supplies power to the USB3.0 microwave receiving end and terminal equipment connected with the USB3.0 microwave receiving end through an internal DC-DC high isolation voltage module.
The USB3.0 electric signal output by the USB3.0 HUB main control chip uplink interface is converted into an extremely high frequency microwave signal through an internal microwave transmitting circuit TX of an EHF transceiver 7 of a USB3.0 microwave receiving end and transmitted to a microwave receiving end RX of a USB3.0 EHF transceiver 2 of the USB3.0 microwave transmitting end, the extremely high frequency microwave signal transmitted by the other party is converted into an USB3.0 electric signal by the microwave receiving end RX of the EHF transceiver 7 of the USB3.0 microwave receiving end and transmitted to an uplink interface signal input end of the USB3.0 HUB main control chip 6, a control circuit 8 of the USB3.0 microwave transmitting end comprises an MCU control unit 24, a detection circuit 27 and an LED indicating unit 15 and is mainly responsible for communication negotiation, power supply control, system management and fault display, and a power supply circuit 9 supplies power for a local circuit and also supplies power for terminal equipment connected with a USB3.0 downlink interface 5 of the USB3.0 microwave receiving end.
Referring to fig. 2-8, the USB3.0 microwave transmitting end is described in detail.
As shown in fig. 2, the USB3.0 microwave transmitting end includes a USB3.0 uplink interface 11, a USB3.0 EHF transceiver 13, an MCU control unit 14, an LED indication circuit 15, a management interface circuit 16, a detection circuit 17, and a power supply unit 18.
The USB3.0 EHF transceiver 13 is composed of a microwave transmitting chip KSS104-TX and a microwave receiving chip KSS104-RX, the working speed of the KSS104 series chip can reach 6Gbps, the other chip types with the same type can reach 12Gbps, so that the 10Gbps speed required by USB3.1 Gen2 can be met, an electromagnetic waveguide is integrated in the KSS104 series chip, a microwave antenna is not required to be externally connected, the circuit is greatly simplified, the KSS104-TX is used for converting a USB3.0 electric signal output by a USB3.0 main controller of a computer host into an extremely high frequency microwave signal, and the KSS104-RX is used for converting the received extremely high frequency microwave signal into the USB3.0 electric signal to be transmitted to a signal input end of the USB3.0 main controller of the computer host.
Connection of the microwave transmitting chip KSS104-TX of the USB3.0 EHF transceiver 13 with other circuits the pin functions and configuration values of the chip KSS104-TX of the USB3.0 microwave transmitting terminal are shown in Table 1, and the chip high-speed differential signal HSD_c input pin 1300 and the high-speed differential signal HSD_t input pin 1301 are connected to the USB3.0 signal input terminal of the USB3.0 uplink interface 11; the low-speed differential signal LSD_c input pin 1302 is unsettled, the low-speed differential signal LSD_t input pin 1303 is connected to GND through a resistor, the TRBS chip TX mode selection pin 1304 is connected to VDDQ through a resistor, the chip internal connection communication ICC input pin 1305 is connected to the chip internal connection communication ICC output pin 1325 of the USB3.0 microwave transmission terminal KSS104-RX chip and is connected to the ICC input pin 1412 of the MCU control unit 14, the chip link connection enable LDBE input pin 1306 is connected to the chip link connection enable LDBE output pin 356 of the USB3.0 microwave transmission terminal KSS104-RX chip and is connected to the LDBE _OUT output pin 1411 of the MCU control unit 14, the chip power down control PD_N input pin 1307 is connected to an external delay circuit and is connected to the PD_N_1 output pin 1413 of the MCU control unit 14, the chip standard selection SS2 pin 1308 is connected to GND through a resistor, the chip ID selection G1 pin 1309 is connected to GND through a resistor, the chip SPI interface signals SSB signal pin 1310, the SCK signal pin MOSI signal pin 1312, the MISO 3 signal pin joint with the power supply pin 13118, and the power supply pin 18218 is connected to the power supply unit input interface power supply pin 13118 at a low speed.
TABLE 1 USB3.0 microwave Transmit (Host) KSS104-TX Pin function configuration definition
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Connection of the microwave receiving chip KSS104-RX of the USB3.0 EHF transceiver 13 with other circuits the pin function and configuration values of the USB3.0 microwave transmitting terminal KSS104-RX chip are shown in Table 2, and the chip high-speed differential signal HSD_c output pin 1320 and the high-speed differential signal HSD_t output pin 1321 are connected to the USB3.0 signal output terminal of the USB3.0 upstream interface 11; the low speed differential signal LSD_c input pin 1322 is connected to the RX_RDY signal input pin 1415 of the MCU control unit 14, the low speed differential signal LSD_t input pin 1323 is connected to GND through a resistor, the TRBS chip RX mode select pin 1324 is connected to GND through a resistor, the chip internal connection communication ICC output pin 1325 is connected to the chip internal connection communication ICC input pin 1305 of the USB3.0 microwave transmit terminal KSS104-TX chip while connected to the ICC input pin 1412 of the MCU control unit 14, the chip link connection enable LDBE output pin 1326 is connected to the chip link connection enable LDBE input pin 1306 of the USB3.0 microwave transmit terminal KSS104-TX chip while connected to the LDBE _OUT output pin 1411 of the MCU control unit 14, the chip power down control PD_N input pin 1327 is connected to an external delay circuit while connected to the PD_N_2 output pin 1414 of the MCU control unit 14, the chip standard select SS2 pin 1328 is connected to GND through a resistor, the chip ID select G1 pin 1329 is connected to GND through a resistor, the chip interface signal 1330, the SSK signal pins SSI 1, the SSI signal input pin 1332, the power supply signal input pin 13318, and the power supply signal input pins 13318 are connected to the power supply unit at a low speed, and the power supply interface signal input pins 13318, and the interface signal input pins 13318 are connected to the power supply unit of VDDI 18.
TABLE 2 USB3.0 microwave Transmit (Host) KSS104-RX Pin function configuration definition
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MCU control unit 14 has an on-line programming and upgrade interface with ISP_RS232_TXD output pin 1445 connected to the RXD of the host computer RS-232 interface and ISP_RS232_RXD output pin 1446 connected to the TXD of the host computer RS-232 interface, MCU control unit 24 will output corresponding negotiation control instructions based on the signal states of input signals ICC, RX_RDY, H_com_RX, D_DET_R_IN, USB_PWR_FL, and the signal connections of this part are described IN other circuit descriptions and will not be described IN detail here.
The LED display circuit 15 is used for indicating information such as communication status and fault condition.
The serial port transmitting data RS232 TXD pin 164 of the management interface 16 is connected to the cmi_rs232_rxd input pin 1442 of the MCU control unit 14, the serial port receiving data RS232_rxd pin 163 of the management interface 16 is connected to the cmi_rs232_txd input pin 1441 of the MCU control unit 14, and other circuit descriptions are provided for this part of signal connections, which are not described in detail herein.
The detection circuit 17 has a pair of hall sensors and magnetic elements, a pair of transceiver optocouplers, the USB3.0 microwave transmitting end and the USB3.0 microwave receiving end can perform bidirectional communication through the optocouplers, the hall sensors and the magnetic elements are used to establish physical connection between the USB3.0 microwave transmitting end and the USB3.0 microwave receiving end, when the magnetic elements of the USB3.0 microwave receiving end are close to the hall sensors of the USB3.0 microwave transmitting end, the hall sensors output a fixed level signal dev_det_r for determining that the USB3.0 microwave transmitting end and the USB3.0 microwave receiving end are close to each other IN an effective interval, the connection request is initiated according to the signals, the dev_det_r signal output pin 172 is connected to the d_det_r_in input pin 1423 of the MCU control unit 14, the MCU control unit 14 sends LDBE _out, pd_n_1 and pd_n_2 signals to the EHF sensor of the USB3.0 microwave transmitting end, and the pd_n_2 signal detection circuit 17_m_coom_14 is connected to the output pin of the MCU control unit 14 through the output pin of the MCU 3.2_tx_tx_tx_14.
The power supply unit 18 is connected with other circuits, namely an external power supply EXT_5V pin 1818 is connected with an external power supply; USB bus power USB_5V pin 1816 is connected to the power output pin of the USB bus power chip, preferably the chip model is SP2525A-2E, the chip outputs a voltage when the enable pin of the chip is low; the USB bus power detection signal usb_pwr_det output pin 1811 is connected to the USB bus power detection signal usb_pwr_det input pin 1428 of the MCU control unit 14; the USB bus power supply chip enable signal PWR_SW input pin 1813 is connected to the enable PWR_SW output pin 1424 of the USB bus power supply chip of the MCU control unit 14, when PWR_SW is low, the USB bus power supply chip outputs a power supply voltage, the USB bus power supply chip current overload signal USB_PWR_FL output pin 1814 is connected to the current overload signal USB_PWR_FL input pin 1448 of the USB bus power supply chip of the MCU control unit 14, when no external power supply is provided, the USB_PWR_DET keeps outputting a low level enable signal to the PWR_SW input pin 1813 of the MCU control unit 14, at this time, the USB bus provides power supply to all circuits, the USB_PWR_DET output pin 1811 of the power supply unit 18 keeps outputting a high level, the PWR_SW output pin 1424 of the MCU control unit 14 keeps outputting a high level enable signal to the R_SW input pin 1813 of the power supply unit 18, when the USB bus power supply chip does not work, the whole of the USB bus power supply unit is connected to the MCU control unit 18 by the external power supply voltage VCC 14, the MCU control unit 18 is connected to the positive diode 1825, the cathode of the diode is connected to vcc_mu, the anode of the other diode is connected to usb_5v, the cathode of the diode is connected to vcc_mu, the MCU control unit 14 is powered from the USB interface and the external power supply at the same time, the power supply of the MCU control unit 14 is preferentially supplied, i.e. is not affected by the power supply switching circuit, the management interface 16 power vcc_cmi output pin 1825 is connected to the power vcc_cmi input pin 162 of the management interface 16, the power usb_iso output pin 1826 of the DC-DC high voltage isolation module of the power supply unit 18 is connected to the usb_iso_pwr input pin 2816 of the power supply unit 28 of the USB3.0 microwave receiver, and the power supply enable signal ehf_pwr_en input pin 1815 of the USB3.0 microwave transmitter is connected to the ehf_pwr_en output pin 1815 of the MCU control unit 14, and the signal connections are described in other circuits, not described in detail herein.
Referring to fig. 9-15, the USB3.0 microwave receiver is described in detail.
As shown in fig. 9, the USB3.0 microwave receiving end includes a USB3.0 downlink interface 21, a USB3.0 HUB master control chip 22, a USB3.0 EHF transceiver 23, an MCU control unit 24, an LED indicating circuit 25, a detecting circuit 27, and a power supply unit 28.
The USB3.0 downstream interface 21 has at least one USB3.0 port for connection to a USB3.0 terminal.
The pins of the USB3.0 HUB main control chip 22 are connected with other circuits, the FLASH data bus 2212 is externally connected with the FLASH chip and is used for storing configuration data of the chip; the USB3.0 upstream interface overspeed transmit signal U3H_TX+/-differential pair 2213 of the USB3.0 HUB master chip 22 is connected to differential inputs 2300 and 2301 of the EHF microwave transmitter 231; the overspeed receiving signal U3H_RX+/-differential pair 2214 is connected to differential output ends 2320 and 2321 of the EHF microwave receiver 232, and the VBUS control signal VBUS_DET input pin 2215 of the USB3.0 uplink interface supply voltage VBUS is connected to the VBUS control signal VBUS_DET output pin 2426 of the MCU control unit, which is used for controlling communication negotiation of the USB3.0 microwave transmitting end and the USB3.0 microwave receiving end; reset signal RST_USB input 2216 is connected to an external reset circuit on the one hand and connected to USB3.0 HUB reset signal RST_USB output pin 2447 of MCU control unit 24 on the other hand, downstream interface port 1 power enable PPON signal output pin 2231 is connected to downstream port 1 power enable DP_ PWEN signal input pin 2828 of power supply unit 28, downstream interface port 2 power enable PPON signal output pin 2233 is connected to downstream port 2 power enable DP_ PWEN signal input pin 2829 of power supply unit 28, downstream interface port 3 power enable PPON signal output pin 2235 is connected to downstream port 3 power enable DP_4234 signal input pin 2830 of power supply unit 28, downstream interface port 4 power enable PPON signal output pin 2237 is connected to downstream port 4 power enable DP_ PWEN signal input pin 2831 of power supply unit 28, downstream interface port 1 over-current signal OVCI input pin 2 is connected to downstream port 1 over-current signal DP_ PWEN signal input pin 2233 of power supply unit 28, downstream interface port 3 power enable PPON signal output pin 2235 is connected to downstream port 3 power supply port PWEN power enable DP_4234 signal input pin 2830 of power supply unit 28, downstream interface port 4 power output pin 22384 signal output pin 2237 is connected to downstream port 4 power supply unit 28, downstream interface port 1 over-current signal power supply port 1 input pin 3249 signal input pin 22349 of power supply unit 2 is connected to downstream interface port 2 through-2 input pin OVCI of power unit 28 2833, downstream interface port 3 over-current signal OVCI input pin 2236 is connected to downstream port 3 over-current signal dp_ OVCI3 output pin 2834 of power supply unit 28, downstream interface port 4 over-current signal OVCI input pin 2238 is connected to downstream port 4 over-current signal dp_ OVCI1 output pin 2835 of power supply unit 28, differential pair USB3-TX1 +/-signal output 2222 and USB3-RX1 +/-signal input 2223 are connected to downstream interface 1, differential pair USB3-TX2 +/-signal output 2224 and USB3-RX2 +/-signal input 2225 are connected to downstream interface 2, differential pair USB3-TX3 +/-signal output 2226 and USB3-RX3 +/-signal input 2227 are connected to downstream interface 3, differential pair USB3-TX4 +/-signal output 2228 and USB3-RX4 +/-signal input 2229 are connected to downstream interface 4, and the signal connections of this section are illustrated in other circuit descriptions and will not be described in detail.
The USB3.0 EHF transceiver 23 is composed of a KSS104-TX and a KSS104-RX, the inside of the KSS104 series chip contains an EHF microwave transmitter and an EHF microwave receiver, which can be configured into a transmitting mode or a receiving mode as required, the working rate can reach 6Gbps, and the number of other chips of the same type can reach 12Gbps, so that the 10Gbps rate required by the USB3.1 Gen2 can be met, the KSS104 series chip is internally integrated with an electromagnetic waveguide, thus the external microwave antenna is not required, the circuit is greatly simplified, the chip area is only 5mm x 5mm, the KSS104-TX is used for converting the USB3.0 electrical signal output by the uplink interface of the USB3.0 HUB main control chip into an extremely high frequency microwave signal, and the KSS104-RX is used for converting the received extremely high frequency microwave signal into the USB3.0 electrical signal to be transmitted to the uplink interface signal input end of the USB3.0 HUB main control chip 22.
Connection of the microwave transmitting chip KSS104-TX of the USB3.0 EHF transceiver 23 with other circuits, referring to Table 3 for pin functions and configuration values of the chip KSS104-TX of the USB3.0 microwave transmitting end, the chip high-speed differential signal HSD_c input pin 2300 and the high-speed differential signal HSD_t input pin 2301 are connected to the USB3.0 signal output end of the USB3.0 upstream interface of the USB3.0 HUB main control chip 22; the low-speed differential signal LSD_c input pin 2302 is unsettled, the low-speed differential signal LSD_t input pin 2303 is connected to GND through a resistor, the TRBS chip TX mode select pin 2304 is connected to VDDQ through a resistor, the chip internal connection communication ICC input pin 2305 is connected to the chip internal connection communication ICC output pin 2325 of the USB3.0 microwave receive end KSS104-RX chip while connected to the ICC input pin 2412 of MCU control unit 24, the chip link connection enable LDBE input pin 2306 is connected to the chip link connection enable LDBE output pin 2326 of the USB3.0 microwave receive end KSS104-RX chip while connected to the LDBE _OUT output pin 2411 of MCU control unit 24, the chip power down control PD_N input pin 2307 is connected to an external delay circuit while connected to the PD_N_1 output pin 2413 of MCU control unit 24, the chip standard selection SS2 pin 2308 is connected to GND through a resistor, the chip ID select G1 pin 2309 is connected to VDDQ through a resistor, the chip interface signal pins 2310, the SSK signal pins 2311, the MOSI signal pins 23123123, the power supply signal pins 23128 are connected to the power supply pins 23128 and the power supply pins 2828 are connected together.
TABLE 3 USB3.0 microwave receiver (Device) KSS104-TX Pin function configuration definition
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The microwave receiving chip KSS104-RX of the USB3.0 EHF transceiver 23 is connected with other circuits, namely, the pin function and configuration value of the USB3.0 microwave receiving terminal KSS104-RX chip are shown in Table 4, and the chip high-speed differential signal HSD_c output pin 2320 and the high-speed differential signal HSD_t output pin 2321 are connected to the USB3.0 signal input and output terminal of the USB3.0 USB upstream interface of the USB3.0 HUB main control chip 22; the low-speed differential signal LSD_c input pin 2322 is connected to the RX_RDY signal input pin 2415 of the MCU control unit 24, the signal is used for controlling communication negotiation between the USB3.0 microwave transmitting end and the USB3.0 microwave receiving end, the VBUS_DET signal input pin of the USB3.0 HUB main control chip is enabled by the MCU to enter an on-line connection state after being processed by the MCU, the low-speed differential signal LSD_t input pin 2323 is connected to GND through a resistor, the TRBS chip RX mode selection pin 2324 is connected to GND through a resistor, the chip internal connection communication ICC output pin 2325 is connected to the chip internal connection communication ICC input pin 5 of the USB3.0 microwave receiving end KSS104-TX chip and is connected to the ICC input pin of the MCU control unit 24, the chip link connection enabling pin LDBE output pin 2326 is connected to the chip link connection enabling pin LDBE input pin 2306 of the USB3.0 HUB main control unit 24 and is connected to the pin LDBE _OUTx chip output pin LDBE _OUTx1 of the MCU control unit 24, the chip RX mode selection pin 2324 is connected to the PD 2333, the chip is connected to the chip input pin 2333, the chip is connected to the signal input pin 2333 through a signal input pin 2333, and the chip internal connection communication ICS 104-TX signal input pin 2333 is connected to the chip input pin of the MCU control unit 24 through a signal input pin 2333 MISO signal pin 2313 is connected together to an external SPI programming interface, main power supply VDDQ input pin 2334 is connected to VDDQ output pin 2822 of power supply unit 28, and low rate I/O power supply VDD input pin 2335 is connected to VDDQ output pin 2823 of power supply unit 28.
TABLE 4 USB3.0 microwave receiver (Device) KSS104-RX pin function configuration definition
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The LED display circuit 25 is used for indicating information such as communication status and fault condition.
The detection circuit 27 is provided with a pair of hall sensors, a pair of magnetic elements and a pair of transceiver optocoupler elements, wherein the USB3.0 microwave transmitting end and the USB3.0 microwave receiving end can be IN bidirectional communication through the optocoupler elements, and the hall sensors and the magnetic elements are adopted to establish physical connection between the USB3.0 microwave transmitting end and the USB3.0 microwave receiving end; when the magnetic element of the USB3.0 microwave receiving end approaches the hall sensor of the USB3.0 microwave transmitting end, the hall sensor outputs a fixed level signal host_det_r for determining that the USB3.0 microwave transmitting end and the USB3.0 microwave receiving end are already close to each other IN the active interval, both of which initiate a connection request according to the signal, the host_det_r_in signal output pin 272 is connected to the h_det_in input pin 2423 of the MCU control unit 24, the MCU control unit 14 sends LDBE _out, pd_n_1 and pd_n_2 signals to the EHF transceiver of the USB3.0 microwave receiving end, the d_com_tx_in signal input pin 271 of the optical coupling transmitting circuit of the detecting circuit 27 is connected to the d_com_tx output pin 2421 of the MCU control unit 24, and the h_com_rx input pin 1422 of the MCU control unit 14 transmitted to the MCU control unit 14 of the USB3.0 microwave transmitting end through optical coupling.
The power supply unit 28 is connected with other circuits, an external power supply EXT_5V pin 2815 is connected with the external power supply, the whole circuit is powered by the external power supply, a power supply VCC_MU output pin 2824 of the MCU control unit 24 is connected to a power supply VCC_MCU input pin 2425 of the MCU control unit 24, a power supply VCC_HUB output pin 2825 of the power supply unit 28 is connected to a power supply VCC_HUB input pin 2211 of the USB3.0 HUB master control chip 22, a power supply of a USB3.0 microwave receiving end USB3.0 downlink interface is connected to a downlink port power supply DP_VCC_1-4 output pin 2826 of the power supply unit 28, a power supply enable signal EHF_PWR_EN input pin 2815 of the USB3.0 EHF transceiver 23 is connected to an EHF_PWR_EN output pin 2427 of the MCU control unit 24, a power supply management PM_IN signal input pin 2817 of the power supply unit 28 is connected to a PM_OUT_MU output pin 2449 of the MCU control unit 24, a power management PM_OUT signal output pin 2818 of the power supply unit 28 is connected to a PM_IN control unit 24, and other circuits are not described IN detail.
The MCU control unit 24 has an on-line programming and upgrade interface, ISP_RS232_TXD output pin 2445 is connected to RXD of the computer host RS-232 interface, ISP_RS232_RXD output pin 2446 is connected to TXD of the computer host RS-232 interface, the MCU control unit 24 outputs corresponding negotiation control instructions according to signal states of the input signals ICC, RX_RDY, D_com_RX, H_DET_R_IN and PM_IN_MU, and the signal connection of the part is described IN other circuit descriptions and is not described IN detail here.
A specific implementation manner of the auto-negotiation method for the microwave communication between the USB3.0 microwave transmitting end and the USB3.0 microwave receiving end will be described in detail below.
1. Whenever the microwave signal receiver 232 of the USB3.0 microwave transmitting end always receives the microwave signal before the microwave signal receiver 232 of the USB3.0 microwave receiving end, after the connection of the microwave signal receiver 132 of the USB3.0 microwave transmitting end is interrupted, the MCU control unit 14 sends out a control command to make the microwave signal transmitter 131 of the USB3.0 microwave transmitting end always in a state of prohibiting transmission, after the microwave signal receiver 232 of the USB3.0 microwave receiving end does not receive the microwave signal, a low level state indication signal RECEIVE READY is output to the rx_rdy input pin 2415 of the MCU control unit 24, the MCU control unit 24 sends out a control command to make the uplink interface of the USB3.0 HUB master chip 22 disconnected, the USB3.0 HUB master chip 22 enters a standby state, so that the USB3.0 HUB master chip 22 is guaranteed not to send out ultra-high speed data packets, but the microwave signal transmitter 232 of the USB3.0 microwave receiving end always in a transmitting state.
After the USB3.0 microwave transmitting end and the USB3.0 microwave receiving end are separated, a physical connection detection circuit of the USB3.0 microwave transmitting end and the USB3.0 microwave receiving end sends out control signals, so that the USB3.0 microwave transmitting end and the USB3.0 microwave receiving end are in a power-down state, and the MCU control unit sends out control instructions according to the output signals of the detection circuits, so that the link connection between the USB3.0 uplink interface 11 of the USB3.0 microwave transmitting end and the USB3.0 main controller 1 of the computer host is interrupted.
3. After the physical connection is re-established between the USB3.0 microwave transmitting end and the USB3.0 microwave receiving end, the physical connection detection circuits of the two send control signals, so that the USB3.0 microwave transmitting end and the USB3.0 microwave receiving end are in a power-on state, the microwave signal receiver 132 of the USB3.0 microwave transmitting end receives the microwave signal sent by the USB3.0 microwave receiving end, the microwave signal receiver 132 sends a state indication signal RECEIVE READY to the rx_rdy input pin 1415 of the transmitting end MCU control unit 14, the MCU control unit 14 sends a control signal to enable the microwave signal transmitter 131 of the USB3.0 microwave transmitting end, the microwave signal transmitter 131 of the USB3.0 microwave transmitting end sends a link initialization signal to the USB3.0 microwave receiving end, the microwave signal receiver 232 of the USB3.0 microwave receiving end outputs a high-level state indication signal RECEIVE READY to the rx_rdy input pin 2415 of the receiving end MCU control unit, the MCU control unit 24 sends a vbus_det enable signal to the USB3.0 HUB master chip 22, and thus the HUB 3.0 HUB master chip is successfully connected to the USB3.0 HUB master chip, and the HUB 3.0 HUB master chip is successfully negotiates a state to the USB3.0 lfchip, and the HUB 3.0 HUB master chip is successfully connected to the USB3.0 host computer, and the HUB 3 is successfully connected to the host computer, and the HUB 3 is connected to the USB3.0 host computer, and the HUB computer is successfully connected to the host computer, and the HUB chip.
4. When the external power supply is adopted for supplying power, if the data line of the USB3.0 microwave transmitting end and the USB3.0 main control chip 1 of the computer host are removed, the MCU control unit 14 of the USB3.0 microwave transmitting end sends an instruction to the power supply unit 18 to enable the microwave signal transmitter 131 of the transmitting end to be in a forbidden transmitting state, and meanwhile, the power supply of the USB3.0 microwave receiving end is cut off, so that the power consumption is reduced, when the data line connected with the computer host is reconnected, and the computer host is in a starting state, and the USB3.0 port is normally powered, the MCU control unit 14 of the USB3.0 microwave transmitting end sends an instruction to the power supply unit 18 to recover the power supply of the USB3.0 microwave receiving end, and the microwave signal transmitter 232 of the USB3.0 microwave receiving end sends a link initialization signal.
5. If the USB3.0 terminal device at the USB3.0 microwave receiving end works abnormally, the host computer may send an instruction to the MCU control unit 14 at the transmitting end through the management interface 16, the MCU control unit 14 at the transmitting end transmits the instruction to the d_com_rx input pin 2422 of the MCU control unit 24 at the receiving end through the optocoupler circuit of the detection circuit 17, further, the MCU control unit 24 at the receiving end sends a port power state detection instruction to the power supply unit 28 at the receiving end through the power management pm_out signal output pin 2818, and if no current overload condition exists, sends a port power restart instruction, so that the USB3.0 terminal device performs cold start.
6. Under the condition that the input signal detection of the microwave transmitting chip is overtime and the input signal detection of the microwave receiving chip is overtime, the chip can enter a standby state, if the input signal of the microwave transmitting chip is detected again, the chip can immediately exit the standby state to enter the active state, and if the input signal of the microwave receiving chip is detected again, the chip can immediately exit the standby state to enter the active state.
The method can well solve the compatibility problem in the using process, and can also realize the fault diagnosis and reset functions of the terminal equipment.
While the invention has been described in detail in connection with specific preferred embodiments thereof, it is not to be construed as limited thereto, but rather as a result of a simple deduction or substitution by a person having ordinary skill in the art without departing from the spirit of the invention, which is to be construed as falling within the scope of the invention defined by the appended claims.
Claims (6)
1. A USB3.0 HUB adopting extremely high frequency microwave isolation is characterized in that a USB3.0 microwave transmitting end is arranged at one end connected with a computer host, a USB3.0 microwave receiving end is arranged at one end connected with USB terminal equipment, a detection circuit is arranged at each of the USB3.0 microwave transmitting end and the USB3.0 microwave receiving end, the detection circuit is provided with a pair of Hall sensors and magnetic elements and a pair of transceiver optical coupling elements, two-way communication is carried out between the USB3.0 microwave transmitting end and the USB3.0 microwave receiving end through the optical coupling elements, physical connection between the USB3.0 microwave transmitting end and the USB3.0 microwave receiving end is established by adopting the Hall sensors and the magnetic elements, when the magnetic elements of the USB3.0 microwave transmitting end are close to the Hall sensors of the USB3.0 microwave transmitting end, a fixed level signal is output for determining that the USB3.0 microwave transmitting end and the USB3.0 microwave receiving end are close to each other in an effective interval, and accordingly, the USB microwave signal is automatically transmitted by the USB3.0 microwave transmitting end and the USB microwave receiving end through the USB3.0 microwave receiving end, and the USB microwave signal is not in advance of the microwave receiving end, and the microwave signal is automatically transmitted by the USB microwave receiving end, and the microwave signal is not transmitted by the USB microwave receiving end, and the microwave signal is transmitted by the USB 0 microwave receiving end, and the microwave signal is transmitted by the microwave receiving end through the microwave receiving end; the USB3.0 microwave transmitting end is connected with a USB3.0 EHF transceiver, the USB3.0 microwave receiving end is also connected with a USB3.0 EHF transceiver at the uplink port of the USB3.0 HUB main control chip, in the USB3.0 microwave communication process, only the received USB3.0 electric signal is subjected to electric-microwave-electric conversion, the microwave transmission equipment does not add any additional data into the data stream, so that the USB3.0 signal is transparent in the transmission process by using the microwave transmission equipment, all terminal peripherals conforming to the USB3.0 standard can be normally connected.
2. The USB3.0 HUB with very high frequency microwave isolation as claimed in claim 1, wherein the USB3.0 microwave transmitting end comprises a USB3.0 EHF transceiver, the USB3.0 EHF transceiver is composed of a KSS104-TX and a KSS104-RX, an electromagnetic waveguide is integrated in a chip, so that an external microwave antenna is not required, the working speed is 6Gbps, the speed of replacing other chips of the same type can reach 12Gbps, the speed of 10Gbps required by USB 3.1 Gen2 can be met, the KSS104-TX is used for converting USB3.0 electric signals output by a USB3.0 main controller of a computer host into very high frequency microwave signals, and the KSS104-RX is used for converting the received very high frequency microwave signals into USB3.0 electric signals to be transmitted to a signal input end of the USB3.0 main controller of the computer host.
3. The USB3.0 HUB adopting very high frequency microwave isolation as claimed in claim 1, wherein the USB3.0 microwave receiving end also comprises a USB3.0 EHF transceiver, the USB3.0 EHF transceiver is composed of a KSS104-TX and a KSS104-RX, an electromagnetic waveguide is integrated in a chip, thus an external microwave antenna is not required, the working speed is 6Gbps, the speed of replacing other chips of the same type can reach 12Gbps, thus the speed of 10Gbps required by USB 3.1 Gen2 can be met, the KSS104-TX is used for converting USB3.0 electric signals output by an uplink interface of a USB3.0 HUB main control chip into very high frequency microwave signals, and the KSS104-RX is used for converting the received very high frequency microwave signals into USB3.0 electric signals to be transmitted to an uplink interface signal input end of the USB3.0 HUB main control chip.
4. A USB3.0 HUB with very high frequency microwave isolation as claimed in claim 1, wherein an MCU control unit is arranged at both a USB3.0 microwave transmitting end and a USB3.0 microwave receiving end for realizing digital diagnosis of the USB3.0 microwave transmitting end and the USB3.0 microwave receiving end and remote control of USB3.0 terminal equipment, and auto-negotiation of microwave communication between the USB3.0 microwave transmitting end and the USB3.0 microwave receiving end.
5. The USB 3.0 HUB isolated by using the ultra-high frequency microwave as claimed in claim 1, wherein the USB 3.0 microwave receiving end is provided with a multi-port USB 3.0 HUB which can be simultaneously connected with four ultra-high speed USB 3.0 terminal peripherals, a USB 3.0 HUB main control chip is a muPD 720210, and the transmission requirement of USB 3.1 Gen 210 Gbps can be met by replacing a USB 3.1 HUB main control chip VL 820.
6. An auto-negotiation method for microwave communication between a USB3.0 microwave transmitting end and a USB3.0 microwave receiving end according to claim 1, characterized in that:
1> whenever the microwave signal receiver of the USB3.0 microwave transmitting end always receives a microwave signal before the microwave signal receiver of the USB3.0 microwave receiving end, after the microwave signal receiver of the USB3.0 microwave transmitting end is connected and interrupted, the MCU control unit sends out a control command to enable the microwave signal transmitter of the USB3.0 microwave transmitting end to be always in a forbidden transmitting state, after the microwave signal receiver of the USB3.0 microwave receiving end can not receive the microwave signal, a low-level state indication signal RECEIVE READY is output to an RX_RDY input pin of the MCU control unit of the receiving end, and the MCU control unit sends out a control command to enable an uplink interface of the USB3.0 HUB main control chip to be disconnected, so that the USB3.0 HUB main control chip is in a standby state, and the USB3.0 HUB main control chip can not send out ultra-high-speed data packets, but the microwave signal transmitter of the USB3.0 microwave receiving end is always in a transmitting state;
2> after the USB3.0 microwave transmitting end and the USB3.0 microwave receiving end are separated, the physical connection detection circuit of the USB3.0 microwave transmitting end and the USB3.0 microwave receiving end send out control signals, so that the USB3.0 microwave transmitting end and the USB3.0 microwave receiving end are in a power-down state, and the MCU control unit sends out control instructions according to the output signals of the detection circuits, so that the link connection between the USB3.0 uplink interface of the USB3.0 microwave transmitting end and the USB3.0 main controller of the computer host is interrupted;
3> after the physical connection is re-established between the USB3.0 microwave transmitting end and the USB3.0 microwave receiving end, the physical connection detection circuits of the USB3.0 microwave transmitting end and the USB3.0 microwave receiving end send control signals, so that the microwave signal receiver of the USB3.0 microwave transmitting end receives the microwave signals sent by the USB3.0 microwave receiving end, the microwave signal receiver sends a high-level state indication signal RECEIVE READY to the RX_RDY of the transmitting end MCU control unit, the MCU control unit sends control signals to enable the microwave signal transmitter of the USB3.0 microwave transmitting end, the microwave signal transmitter of the USB3.0 microwave transmitting end sends link initialization signals to the USB3.0 microwave receiving end, the microwave signal receiver of the USB3.0 microwave receiving end outputs a state indication signal RECEIVE READY to the RX_RDY of the receiving end MCU control unit, the MCU control unit sends VBUS_DET enabling signals to the USB3.0 HUB main control chip, and accordingly the USB3.0 HUB main control chip enters a connection state, and when the USB3.0 main control chip negotiates that the USB3.0 main control chip is connected with a corresponding LFP computer, the USB main control chip is successfully connected with the LFACS chip, and the USB3.0 main control chip is successfully returns to the LFACS;
4, when the external power supply is adopted for supplying power, if the data wire of the USB3.0 microwave transmitting end and the USB3.0 main control chip of the computer host is pulled out, the MCU control unit of the USB3.0 microwave transmitting end sends an instruction to the power supply unit, so that the microwave signal transmitter of the transmitting end is in a forbidden transmitting state, and meanwhile, the power supply of the USB3.0 microwave receiving end is cut off, thereby reducing the power consumption;
5> if the USB3.0 terminal equipment of the USB3.0 microwave receiving end works abnormally, the computer host sends an instruction to the MCU control unit of the sending end through the management interface, the MCU control unit of the sending end transmits the instruction to the MCU control unit of the receiving end through the optocoupler circuit, further, the MCU control unit of the receiving end sends a port power state detection instruction to the power supply unit of the receiving end through the power management PM_OUT signal output pin, if no current overload condition exists, a port power restarting instruction is sent, and therefore the USB3.0 terminal equipment is subjected to cold start;
and 6. Under the condition that the input signal detection of the microwave transmitting chip is overtime and the input signal detection of the microwave receiving chip is overtime, the chip can enter a standby state, if the input signal of the microwave transmitting chip is detected again, the chip can immediately exit the standby state to enter the active state, and if the input signal of the microwave receiving chip is detected again, the chip can immediately exit the standby state to enter the active state.
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| CN207251633U (en) * | 2017-08-09 | 2018-04-17 | 东莞市启鼎光电科技有限公司 | A kind of USB3.0 HUB isolated using extremely high frequency microwave |
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| KR200291329Y1 (en) * | 2002-07-04 | 2002-10-09 | 주식회사 티아이엠와이어리스 | Wireless Modem Supporting Universal Serial Bus Interface |
| CN2876890Y (en) * | 2005-12-28 | 2007-03-07 | 天津海东科技发展有限公司 | Wireless microwave multimedia numerically controlled screen and transmitter thereof |
| US9191263B2 (en) * | 2008-12-23 | 2015-11-17 | Keyssa, Inc. | Contactless replacement for cabled standards-based interfaces |
| US8234416B2 (en) * | 2010-04-06 | 2012-07-31 | Via Technologies, Inc. | Apparatus interoperable with backward compatible optical USB device |
| CN103389410A (en) * | 2013-07-10 | 2013-11-13 | 中国电子科技集团公司第四十一研究所 | Microwave power testing device based on universal serial bus (USB) interface |
| CN103605024B (en) * | 2013-11-15 | 2017-02-15 | 中国电子科技集团公司第四十一研究所 | Multi-port S parameter test device based on USB interface |
| US10162051B2 (en) * | 2014-03-13 | 2018-12-25 | Kustom Signals, Inc. | USB/Wireless based traffic radar system |
| CN104317760B (en) * | 2014-10-23 | 2016-03-09 | 安徽工程大学 | A kind of isolating and protecting device of USB3.0 interface at full speed |
| US9940295B2 (en) * | 2015-08-14 | 2018-04-10 | Keyssa, Inc. | Extremely high frequency systems and methods of operating the same to establish USB data transport protocols |
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