CN108509361A - A kind of electronic equipment - Google Patents

Abstract

The electronic device provided by this application includes a device main body and an extension box, the device main body includes a host, and the extension box is independent of the host, and includes at least one interface connected to the host, and at least one of the interfaces can be adapted to different types of functional module. It can be seen that this application adopts an external connection method to expand the functional modules of the electronic equipment, and when the electronic equipment is extended by the external connection method, the expansion box that is external to the electronic equipment host is provided with functions that can adapt to different types of functional modules. At least one interface, thus applying the solution of this application, different functional modules can be configured on the interface based on different functional expansion requirements, that is, more functional modules can be adapted based on fewer physical interface bits, which is better It fully satisfies the needs of users for expansion of various functional modules due to the diversification of usage scenarios, and further alleviates the problem of limited external expansion capabilities of computer equipment such as mini PCs.

Description

an electronic device

technical field

The invention belongs to the technical field of structural design and layout of equipment, and in particular relates to an electronic equipment.

Background technique

In order to cater to the development trend of the industry, various mini PCs (Personal Computers, personal computers), such as Lenovo's Tiny computer, etc., have been launched on the market at present, which have advantages such as high portability, multi-function, and low power consumption.

The mainframe of the mini PC is a miniature mainframe, which is small in size, generally about 1L. The internal structure design of the mainframe is very compact, which will make the expansion capability of the mainframe limited, and it is difficult to expand more functional modules inside the mainframe. In view of Therefore, for the mini PC, the expansion of function modules by external connection is currently proposed. Based on the consideration of the load capacity of the host expansion interface or the space occupation of the expansion module, when the function module is extended by external connection, the functions that can be extended The interface is still very limited, and the majority of users often have expansion requirements for various functional modules due to the diversification of usage scenarios, which leads to conflicts between the limited external expansion capabilities of the mini PC and the user's diverse functional module expansion requirements. Can not better meet user needs.

Contents of the invention

In view of this, the object of the present invention is to provide an electronic device, which is used to alleviate the problem of limited external expansion capabilities of computer devices such as mini PCs, so as to better meet the various functions of users due to the diversification of usage scenarios. Module extension requirements.

For this reason, the present invention discloses following technical scheme:

An electronic device comprising:

a device body, the device body including a host;

The extension box is independent of the host, and includes at least one interface connected to the host, at least one of the interfaces can be adapted to different types of functional modules, and the different types of functional modules are set on the extended inside of the box.

For the above-mentioned electronic device, preferably, the host includes: a host chassis, and a mainboard and a first expansion interface arranged inside the mainframe chassis, and the first expansion interface is connected to the mainboard;

The interface in the expansion box includes: a second expansion interface connected to the first expansion interface, and other interfaces in the expansion box except the second expansion interface are connected to the second expansion interface connect.

In the above-mentioned electronic device, preferably, the host computer further includes a central processing unit CPU connected to the motherboard;

The expansion box also includes:

a controller, connected to the second expansion interface, and connected to the CPU through the connected second expansion interface, the first expansion interface and the motherboard;

The interface in the expansion box also includes:

At least one wireless communication interface is connected to the second expansion interface and connected to the controller; each wireless communication interface is used to access the corresponding wireless communication module, and each wireless communication interface passes through the connected The second expansion interface, the first expansion interface, and the motherboard are connected to the CPU, so that the wireless communication module can communicate with the CPU for data transmission;

The controller is configured to transmit control information, status information and/or device description information between the CPU and the wireless communication module.

For the above-mentioned electronic device, preferably, the wireless communication interface includes:

The first wireless communication interface can be adapted to Zigbee communication module and Lora communication module

The second wireless communication interface can adapt to the long-term evolution LTE communication module and the narrowband Internet of Things NB-IOT communication module.

For the above-mentioned electronic device, preferably, the interface in the expansion box further includes at least one M.2 interface, and the at least one M.2 interface is connected to the second expansion interface and connected to the controller;

The controller is further configured to transmit control information, status information and/or device description information between the CPU and the at least one M.2 interface;

Wherein, the at least one M.2 interface specifically includes a first M.2 interface and a second M.2 interface; then the extension box further includes:

A serial port card connected to the first M.2 interface, and a serial communication port COM and a digital input and output port DIO connected to the serial port card;

A video capture card connected to the second M.2 interface, and a multimedia interface HDMI connected to the video capture card.

For the above-mentioned electronic device, preferably, the expansion box further includes:

a repeater, connected to the second extension interface;

At least one Universal Serial Bus USB interface connected to the transponder;

The at least one wireless communication interface is connected to the second extension interface through the repeater.

For the above-mentioned electronic device, preferably, the expansion box further includes:

A network card connected to the second expansion interface;

The wireless Internet access module is connected with the network card.

For the above-mentioned electronic device, preferably, the host computer further includes a clock generator connected to the motherboard;

The expansion box also includes:

A clock buffer, connected between the second expansion interface and other interfaces in the expansion box except the second expansion interface, through the connected second expansion interface, the first expansion interface And the main board is connected with the clock generator.

For the above electronic device, preferably, the extension box further includes a power interface, configured to supply power to the extension box.

For the above electronic device, preferably, the expansion box is arranged at the bottom of the host.

According to the above solutions, it can be known that the electronic equipment provided by this application includes a device main body and an extension box, the device main body includes a host, and the extension box is independent of the host, and includes at least one interface connected to the host, and there is at least one of the interfaces The interface can be adapted to different types of functional modules, and the different types of functional modules are arranged inside the expansion box. It can be seen that this application adopts an external connection method to expand the functional modules of the electronic equipment, and when the electronic equipment is extended by the external connection method, the expansion box that is external to the electronic equipment host is provided with functions that can adapt to different types of functional modules. At least one interface, thus applying the solution of this application, different functional modules can be configured on the interface based on different functional expansion requirements, that is, more functional modules can be adapted based on fewer physical interface bits, which is better It fully satisfies the needs of users for expansion of various functional modules due to the diversification of usage scenarios, and further alleviates the problem of limited external expansion capabilities of computer equipment such as mini PCs.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only It is an embodiment of the present invention, and those skilled in the art can also obtain other drawings according to the provided drawings without creative work.

FIG. 1 is a schematic structural diagram of Embodiment 1 of an electronic device provided by the present application;

FIG. 2 is a schematic structural diagram of Embodiment 2 of an electronic device provided by the present application;

FIG. 3 is a schematic structural diagram of Embodiment 3 of an electronic device provided by the present application;

FIG. 4 is a schematic structural diagram of Embodiment 4 of an electronic device provided by the present application;

FIG. 5 is a schematic structural diagram of Embodiment 5 of an electronic device provided by the present application;

FIG. 6 is a schematic diagram of connections between interfaces and functional modules in the expansion box provided by Embodiment 5 of the present application.

Detailed ways

For the sake of reference and clarity, the technical terms, abbreviations or abbreviations used in the following text are summarized as follows:

PCIE: PCI-Express (peripheral component interconnect express), is a high-speed serial computer expansion bus standard proposed by Intel in 2001 to replace the old PCI, PCI-X and AGP bus standards. PCIE belongs to high-speed serial point-to-point dual-channel high-bandwidth transmission. The connected device allocates exclusive channel bandwidth and does not share bus bandwidth. It mainly supports active power management, error reporting, end-to-end reliable transmission, hot swap and quality of service ( QOS) and other functions.

M.2 interface: It is a new interface specification introduced by Intel to replace MSATA. The M.2 interface is a new generation interface standard tailored for Ultrabooks to replace the original mSATA interface. Whether it is a smaller size or higher transmission performance, M.2 is far better than mSATA.

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

The present application provides an electronic device, which is used to alleviate the problem of limited external expansion capability of computer devices such as mini PCs, so as to better meet the user's various functional module expansion requirements due to the diversification of usage scenarios. Next, the electronic device of the present application will be described through multiple embodiments.

Referring to FIG. 1 , it is a schematic structural diagram of Embodiment 1 of an electronic device provided by the present application. As shown in FIG. 1 , in this embodiment, the electronic device includes:

A device body 1 , the device body 1 includes a host 11 .

The electronic device may be, but not limited to, a mini PC with a micro host, or a computer device such as a notebook computer.

The main body 1 of the device in this application is a concept opposite to the extension part hereinafter (ie, the extension box 2 of the electronic device), specifically referring to the body part of the electronic device except the extension part. Taking computer equipment such as mini PCs and notebook computers as examples, the main body 1 of the equipment generally includes a host computer and a display.

The extension box 2 is independent of the host 11, and includes at least one interface 21 connected to the host 11, at least one of the interfaces 21 can be adapted to different types of functional modules, and the different types of functional modules It is arranged inside the expansion box 2 .

The mainframe of electronic equipment such as mini PC is a micro mainframe, which is small in size, generally about 1L. The internal structure design of the mainframe is very compact, which will make the expansion ability of the mainframe limited, and it is difficult to carry out more functional modules inside the mainframe. Expansion. In view of this, this application uses an external connection method to expand the functional modules of the electronic equipment.

Specifically, the present application connects an extension box 2 independent of the host 11 to the host 11 of the electronic device, expands the function of the electronic device in the form of an extension box, and expands some interfaces or functional modules involved in the function expansion. and other expansion devices are all set in the expansion box 2.

In this embodiment, the extension box 2 includes at least one interface 21 connected with the host 11 . Wherein, each interface 21 arranged in the expansion box 2 and connected with the host computer 11 is specifically used to provide the access function of the functional modules that need to be expanded, and each functional module that needs to be expanded can be connected to the interface 21, To realize signal communication with the host computer 11 , the corresponding functional modules connected to each interface 21 are all set in the expansion box 2 .

Based on the consideration of the load capacity of the host expansion interface or the space occupation of the expansion module, when the function module is expanded by external connection, the expandable interface is still very limited. To fully meet the user's various functional module expansion requirements due to the diversification of usage scenarios, this embodiment proposes to design at least one interface that can adapt to different types of functional modules among the various interfaces 21 included in the expansion box, that is, the interface can be It provides the access function of the first type of functional modules, and can also provide the access functions of other types of functional modules such as the second or third, so that different types of functional modules can be accessed through one physical interface bit (only occupying one interface space) .

Here, it should be noted that accessing different types of functional modules through one physical interface bit means that different types of functional modules can be accessed through one physical interface bit at different times, that is, at the same time because only One interface bit can only be connected to one functional module, and different functional modules can share the same interface at different times. In practical applications, according to different application requirements of different scenarios, corresponding required functions can be configured on the interface. functional module.

According to the above scheme, it can be seen that this application adopts the external connection method to expand the function modules of the electronic equipment, and when the electronic equipment is extended by the external connection method, the expansion box externally connected to the electronic equipment host is set to be able to adapt to different types of functions. At least one interface of the module, thus applying the solution of this application, different functional modules can be configured on the interface based on different functional expansion requirements, that is, more functional modules can be adapted based on fewer physical interface bits, and more It well satisfies the needs of users for expansion of various functional modules due to the diversification of usage scenarios, and further alleviates the problem of limited external expansion capabilities of computer equipment such as mini PCs.

Referring to FIG. 2, it is a schematic structural diagram of Embodiment 2 of an electronic device provided by the present application. As shown in FIG. 2, in this embodiment:

The host 11 includes: a host chassis 111 , a mainboard 112 and a first expansion interface 113 disposed inside the mainframe chassis 111 , and the first expansion interface 113 is connected to the mainboard 112 .

The interface 21 in the expansion box 2 includes: a second expansion interface 211 connected to the first expansion interface 113, and other interfaces in the expansion box 2 except the second expansion interface 211 are connected to the connected to the second extension interface 211.

Wherein, the first expansion interface 113 is an interface provided in the host computer 11 of the electronic equipment, which is connected to the mainboard 112 of the host computer, and is used to realize signal connection with the external expansion box 2, and the second expansion interface 211 is an interface provided in the expansion box 2. The interface provided is used for connecting with the first expansion interface 113 to realize relevant host signals, such as PCIE (peripheral component interconnect express) data signals, control signals, etc. The interface or functional module provides an access function to realize signal shunting to other connected interfaces or corresponding functional modules, thereby realizing signal connection between the mainboard 112 and each interface or functional module in the expansion box 2 .

The first expansion interface 113 and the second expansion interface 211 may be but not limited to PCIE docking. It should be noted that, since the first extension interface 113 and the second extension interface 211 need to be connected with each other for signals, these two interfaces should be a pair of interfaces that can be matched and used, such as the first extension interface 113 is a docking female connector, and the second expansion interface 211 is a docking male connector, or the first expansion interface 113 is a docking male connector, and the second expansion interface 211 is a docking female connector, etc.

In practical applications, the first expansion interface 113, such as a docking female head or a docking male head, can be specifically connected to a main board PCB (Printed Circuit Board, printed circuit board) through an M.2 adapter board (set in the main machine) The M.2 interface of the host PCB is connected, that is, the function is expanded from the M.2 interface of the host PCB.

In this embodiment, the signal connection between the host computer and the expansion box is realized through the first expansion interface provided in the host computer and the second expansion interface provided in the expansion box, and then the signal connection between the host motherboard and each interface or function module of the expansion box is realized. connected.

Referring to FIG. 3 , it is a schematic structural diagram of Embodiment 3 of an electronic device provided by the present application. As shown in FIG. 3 , in this embodiment:

The host 11 also includes a CPU (Central Processing Unit, central processing unit) 114 connected to the motherboard 112 .

The CPU 114 is the computing core and control core of the electronic device, and is mainly used for interpreting computer instructions and processing data in computer software. computing or control functions.

The expansion box 2 also includes:

The controller 22 is connected to the second expansion interface 211, and is connected to the CPU 114 through the connected second expansion interface 211, the first expansion interface 113 and the motherboard 112;

The interface 21 in the extension box 2 also includes:

At least one wireless communication interface 212, connected to the second expansion interface 211 and connected to the controller 22; each wireless communication interface 212 is used to access the corresponding wireless communication module 213, each wireless communication interface 212 is connected to the CPU 114 through the connected second expansion interface 211, the first expansion interface 113 and the motherboard 112, so that the wireless communication module 213 can communicate data with the CPU 114 transmission;

The controller 22 is configured to transmit control information, status information and/or device description information between the CPU 114 and the wireless communication module 213 .

Wherein, the wireless communication interface 212 includes at least:

The first wireless communication interface can adapt to Zigbee communication module and Lora communication module;

The second wireless communication interface can be adapted to an LTE (Long Term Evolution, long-term evolution) communication module and an NB-IOT (Narrow Band Internet of Things, narrowband Internet of Things) communication module.

Specifically, when designing interfaces that can adapt to different types of functional modules, generally speaking, for different types of functional modules that require the same type of physical interface and the same type of data signal, it can be considered as the different types of functional modules The module design is a general interface. Taking the Zigbee communication module and the Lora communication module as examples above, the physical interfaces required by these two types of functional modules are mini PCIE interfaces, and the corresponding data signal types are USB (Universal Serial Bus, Universal Serial Bus) data, therefore, these two modules have the condition to share the same physical interface bit, thus, a common interface can be designed for these two types of functional modules.

In practical applications, the different types of functional modules can be adapted on the same interface by simultaneously supporting different protocols required by different types of functional modules (such as Zigbee protocol, Lora protocol, etc.) in the general interface .

Using the interface provided by this application that can adapt to different types of functional modules, in different application scenarios, according to the expansion requirements of different functional modules, corresponding different functional modules can be connected to the interface, using the described The first wireless communication interface can be adapted to the Zigbee communication module and the Lora communication module as an example. In the application scenario of the smart home, generally only one short-distance wireless communication technology is required to meet the data communication in the home scenario, so that all The Zigbee communication module is connected to the first wireless communication interface, and in the smart city application scenario, due to long-distance data communication requirements (such as copying electric meter data, water meter data or controlling the switch status of street lamps, etc.), the The Lora communication module accesses the first wireless communication interface. Different requirements of different application scenarios can be met by accessing different functional modules at one physical interface.

In this embodiment, by providing at least one interface capable of adapting to different types of functional modules in the expansion box, the expansion of more functional modules is supported by using fewer physical interface bits. For example, the adaptable The first wireless communication interface of the Zigbee communication module and the Lora communication module, and the second wireless communication interface that can be adapted to the LTE communication module and the NB-IOT communication module, that is, it can satisfy various IOT (Internet of Things, the communication requirements of the Internet of Things) application scenarios. Therefore, the solution of this embodiment not only satisfies the expansion requirements of the multi-functional modules in different application scenarios, but also saves the occupation of the expansion space.

Referring to FIG. 4, it is a schematic structural diagram of Embodiment 4 of an electronic device provided by the present application. As shown in FIG. 4, in this embodiment:

The interface 21 in the extension box 2 further includes at least one M.2 interface 213 , and the at least one M.2 interface 213 is connected to the second extension interface 211 and connected to the controller 22 .

The controller 22 is further configured to transmit control information, status information and/or device description information between the CPU 114 and the at least one M.2 interface 213 .

That is to say, the controller 22 is configured to, for all interfaces (such as the M.2 interface) or functional modules (such as the at least one wireless communication interface) connected to it, between the host CPU 114 and the interface/ Control information, status information and/or device description information are transmitted between functional modules.

Wherein, the at least one M.2 interface 213 specifically includes a first M.2 interface 2131 and a second M.2 interface 2132; then the extension box 2 also includes:

The serial port card 23 connected to the first M.2 interface 2131 , and the serial communication port COM 214 and digital input/output port DIO 215 connected to the serial port card 23 .

The video capture card 24 connected to the second M.2 interface 213 and the multimedia interface HDMI 216 connected to the video capture card 24 .

In this embodiment, at least one M.2 interface is expanded in the expansion box, and a serial communication port COM, a digital input and output port DIO and a multimedia interface HDMI are further expanded on the at least one M.2 interface. The device provides more abundant interface functions, which can further meet the user's function expansion requirements for electronic devices.

It should be noted that when designing the interfaces in the expansion box that can be adapted to different types of functional modules, it is not limited to the first wireless communication interface that can be adapted to the Zigbee communication module and the Lora communication module provided by this application, and The second wireless communication interface that can be adapted to the LTE communication module and the NB-IOT communication module can also expand/reserve more interfaces that can adapt to different types of functional modules on the second expansion interface such as PCIE docking, Alternatively, one or more interfaces capable of adapting to different types of functional modules may be extended/reserved on the M.2 interface in the extension box, which is not limited in this embodiment.

Referring to FIG. 5 , it is a schematic structural diagram of Embodiment 5 of an electronic device provided by the present application. As shown in FIG. 5 , in this embodiment, the expansion box 2 may also include at least one of the following devices:

A transponder 25, connected to the second extension interface 211;

At least one USB interface 217 is connected to the repeater 25;

The at least one wireless communication interface 212 is connected to the second extension interface 211 through the repeater 25 .

Wherein, the transponder 25 is specifically used to convert the data in the PCIE bus format into USB format data, so as to provide required USB data format support to each USB interface or wireless communication interface connected to the transponder 25, in addition In addition, the transponder 25 also provides a splitting function of USB data, so that the USB data obtained through data format conversion is transmitted to the required destination interface.

A network card 26, connected to the second expansion interface 211;

The wireless Internet access module 27 is connected with the network card 26.

Described network card 26 can specifically be but not limited to network cards such as GLAN (1G Local Area Network, gigabit local area network) or WLAN (Wireless Local Area Networks, wireless local area network), expand on the second extension interface 211 of extension box 2 Setting the network card 26 and the wireless Internet access module 27 connected to the network card 26 can provide the corresponding wireless Internet access function for the user, and further satisfy the user's demand for function expansion of electronic equipment.

The clock buffer 28 is connected between the second expansion interface 211 and other interfaces in the expansion box 2 except the second expansion interface 211, through the connected second expansion interface 211, the The first expansion interface 113 and the main board 112 are connected to the clock generator 115 in the host, wherein the clock generator 115 in the host is connected to the main board 112 of the host.

The clock buffer 28 is used to enhance the load capacity of the clock generator 115 in the host, and at the same time reduce the interference and influence of the load (such as a corresponding interface or functional module) on the clock generator 115 .

The power interface 29 is used to supply power to the expansion box 2 .

The power interface 29 is specifically used to supply power to each interface and functional modules in the expansion box 2 .

Wherein, the power interface 29 can take power from a corresponding power supply for supplying power to electronic equipment through a power adapter, and then supply power to each interface and functional modules in the extension box 2 .

Exemplarily, the power adapter of the electronic device can specifically convert 220V AC mains power into 20V DC power, and provide DC power to the expansion box through the power interface 29 .

Referring to FIG. 6 , it is a schematic diagram of connections between interfaces and functional modules in the expansion box provided by this embodiment. In the expansion box in FIG. 6 , multiple interfaces such as PCIE docking, USB, M.2, and MCU, The clock buffer and other functional modules also provide the first wireless communication interface capable of adapting the Zigbee communication module and the Lora communication module, and the second wireless communication interface capable of adapting the LTE communication module and the NB-IOT communication module. The various interfaces, functional modules, and connections between the various interfaces and functional modules provided in the expansion box can meet users' various functional module expansion requirements due to the diversification of usage scenarios through a small occupation of space resources.

In practical applications, the expansion box may be arranged at a corresponding position outside the main body of the electronic device, for example, at the bottom of the main body of the electronic device.

To sum up, this application adopts the external connection method to expand the function modules of the electronic equipment, and when the electronic equipment is extended by the external connection method, the expansion box that is external to the electronic equipment host is set to be able to adapt to different types of functions. At least one interface of the module, thus applying the solution of this application, different functional modules can be configured on the interface based on different functional expansion requirements, that is, more functional modules can be adapted based on fewer physical interface bits, and more It well satisfies the needs of users for expansion of various functional modules due to the diversification of usage scenarios, and further alleviates the problem of limited external expansion capabilities of computer equipment such as mini PCs.

It should be noted that each embodiment in this specification is described in a progressive manner, and each embodiment focuses on the differences from other embodiments. For the same and similar parts in each embodiment, refer to each other, that is, Can.

For the convenience of description, when describing the above system or device, functions are divided into various modules or units and described separately. Of course, when implementing the present application, the functions of each unit can be implemented in one or more pieces of software and/or hardware.

It can be known from the above description of the implementation manners that those skilled in the art can clearly understand that the present application can be implemented by means of software plus a necessary general-purpose hardware platform. Based on this understanding, the essence of the technical solution of this application or the part that contributes to the prior art can be embodied in the form of software products, and the computer software products can be stored in storage media, such as ROM/RAM, disk , CD, etc., including several instructions to make a computer device (which may be a personal computer, server, or network device, etc.) execute the methods described in various embodiments or some parts of the embodiments of the present application.

Finally, it should also be noted that in this text, relational terms such as first, second, third, and fourth, etc. are only used to distinguish one entity or operation from another entity or operation, and not Any such actual relationship or order between these entities or operations is necessarily required or implied. Furthermore, the term "comprises", "comprises" or any other variation thereof is intended to cover a non-exclusive inclusion such that a process, method, article or apparatus comprising a set of elements includes not only those elements, but also includes elements not expressly listed. other elements of or also include elements inherent in such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of additional identical elements in the process, method, article or apparatus comprising said element.

The above is only a preferred embodiment of the present invention, it should be pointed out that, for those of ordinary skill in the art, without departing from the principle of the present invention, some improvements and modifications can also be made, and these improvements and modifications can also be made. It should be regarded as the protection scope of the present invention.

Claims (10)

1. An electronic device, characterized in that, comprising: a device body, the device body including a host; The extension box is independent of the host, and includes at least one interface connected to the host, at least one of the interfaces can be adapted to different types of functional modules, and the different types of functional modules are set on the extended inside of the box. 2. The electronic device according to claim 1, wherein the host comprises: a host chassis, and a mainboard and a first expansion interface arranged inside the mainframe chassis, and the first expansion interface is connected to the mainboard connected; The interface in the expansion box includes: a second expansion interface connected to the first expansion interface, and other interfaces in the expansion box except the second expansion interface are connected to the second expansion interface connect. 3. The electronic device according to claim 2, wherein the host computer further comprises a central processing unit (CPU) connected to the motherboard; The expansion box also includes: a controller, connected to the second expansion interface, and connected to the CPU through the connected second expansion interface, the first expansion interface and the motherboard; The interface in the expansion box also includes: At least one wireless communication interface is connected to the second expansion interface and connected to the controller; each wireless communication interface is used to access the corresponding wireless communication module, and each wireless communication interface passes through the connected The second expansion interface, the first expansion interface and the motherboard are connected to the CPU, so that the wireless communication module can communicate with the CPU for data transmission; The controller is configured to transmit control information, status information and/or device description information between the CPU and the wireless communication module. 4. The method according to claim 3, wherein the wireless communication interface comprises: The first wireless communication interface can be adapted to Zigbee communication module and Lora communication module The second wireless communication interface can adapt to the long-term evolution LTE communication module and the narrowband Internet of Things NB-IOT communication module. 5. The electronic device according to claim 3 or 4, wherein the interface in the expansion box further includes at least one M.2 interface, and the at least one M.2 interface is connected to the second expansion interface. connected to and connected to said controller; The controller is further configured to transmit control information, status information and/or device description information between the CPU and the at least one M.2 interface; Wherein, the at least one M.2 interface specifically includes a first M.2 interface and a second M.2 interface; then the extension box further includes: A serial port card connected to the first M.2 interface, and a serial communication port COM and a digital input and output port DIO connected to the serial port card; A video capture card connected to the second M.2 interface, and a multimedia interface HDMI connected to the video capture card. 6. The electronic device according to claim 3 or 4, wherein the expansion box further comprises: a transponder, connected to the second extension interface; At least one Universal Serial Bus USB interface connected to the transponder; The at least one wireless communication interface is connected to the second extension interface through the repeater. 7. The electronic device according to claim 3 or 4, wherein the expansion box further comprises: A network card, connected to the second expansion interface; The wireless Internet access module is connected with the network card. 8. The electronic device according to claim 3 or 4, wherein the host computer further comprises a clock generator connected to the motherboard; The expansion box also includes: A clock buffer, connected between the second expansion interface and other interfaces in the expansion box except the second expansion interface, through the connected second expansion interface, the first expansion interface And the main board is connected with the clock generator. 9. The electronic device according to claim 1, wherein the extension box further comprises a power interface for supplying power to the extension box. 10. The electronic device according to claim 1, wherein the expansion box is disposed at the bottom of the host.