CN100390748C - Method for preventing interference of electronic equipment transmitting and receiving signal - Google Patents

Abstract

A method for preventing interference when electronic equipment sends and receives signals. The method is that various types of electronic equipment with a radio frequency identification signal frequency function unidirectionally transmit signals to a host; a receiving unit connected to the host sets multiple detection timings corresponding to various types of electronic equipment in a set scanning cycle, and in each set detection timing, sequentially scans and receives unidirectional transmission signals of multiple electronic operating devices of a certain set electronic equipment, and automatically compares and identifies the transmission signal frequency of a single or multiple electronic input devices that transmit signals of the electronic equipment, so as to detect, identify and prevent interference of signals transmitted by unidirectional multi-time division electronic equipment.

Description

Method for Preventing Interference by Sending and Receiving Signals of Electronic Equipment

technical field

The present invention relates to a method for electronic equipment to send and receive signals to prevent interference, in particular to a method of using different identification signal frequencies generated for multiple operating devices in various types of electronic equipment at the signal transmitting end, and using multiple scan periods at the signal receiving end A set detection sequence is automatically switched for detection, and each detection sequence is corresponding to the signal emitted by an electronic device multiple times in one direction, and is automatically compared and identified to avoid frequency differences between signals emitted by the electronic device at the same time. Difficult methods of interference and signal identification.

Background technique

At present, the configuration and use of computers, due to equipment cost and space constraints, often use a host to connect multiple electronic devices such as mice, keyboards, remote controls, and voice input devices, so that multiple people can use multiple input devices to share a computer host; Or in order to cooperate with multimedia functions, electronic devices such as a mouse, a keyboard, a remote controller, and a voice input device are respectively connected. Traditionally, it is known that the signal transmission connection between the multiple electronic devices and the computer is through a switcher as the medium and control of signal transmission, and the connection transmission is wired, and the specific connection and use will be limited by the length of the connecting line. , The connection line also has the problem of visual clutter in terms of wiring and maintenance, and its entanglement and poor maintenance of the line body or rat bites will also cause problems such as poor transmission.

With the maturity of wireless transceiver transmission technology, such as radio frequency (RF) wireless transceiver technology, WLAN local area network with two-way multi-channel signal transceiver and Bluetooth wireless transceiver technology, etc., are applied to electronic equipment, such as mouse, keyboard, remote control, sound The signal transmission and reception between input devices (such as wireless microphones, etc.) There will be mutual interference between the frequencies of the signals of each electronic device, so that the host computer cannot determine which electronic device the received signal is emitted from or cannot identify the correct signal content, resulting in difficulties in use.

Contents of the invention

One of the main purposes of the present invention is to provide a method for electronic equipment to send and receive signals to prevent interference. Various types of electronic equipment with the function of radio frequency identification signal frequency can transmit signals to the host in one direction; the receiving unit connected to the host, in the In a set scan cycle, set a plurality of detection sequences corresponding to various types of electronic devices, and in each set detection sequence, scan and receive multiple transmissions of corresponding electronic devices or multiple electronic operations in them The signal transmitted by the equipment in one direction, and automatically compare and identify the single or multiple transmitted signals of the electronic equipment to identify the frequency of the signal, and carry out the detection, identification and interference prevention of the signals transmitted by the one-way transmission and multi-time division electronic equipment.

The invention provides a method for preventing interference by sending and receiving signals of an electronic device, the method comprising:

Set various types of electronic equipment and different identification signal frequencies independently generated by multiple electronic operating equipment in each category, and form a series of signal transmissions with the data and commands input by the electronic equipment;

The receiving unit connected to the host computer sets the signal scanning cycle, and multiple detection timings corresponding to various electronic devices are set in this cycle;

The receiving unit automatically switches detection according to each detection timing of the signal scanning cycle;

Electronic equipment emits a series of signals;

The receiving unit detects and receives a series of signals transmitted by the corresponding electronic equipment in a detection sequence during the automatic switching detection of the detection sequence;

The receiving unit compares and identifies the frequency of the identification signal in the received signal according to the identification signal frequency of various types of electronic equipment and its electronic operating equipment stored in preset;

If the identification is correct, continue to receive input data or command signals transmitted by the electronic device.

Brief description of the drawings

FIG. 1 is a signal transceiving architecture diagram of a specific embodiment of the present invention;

Fig. 2 is a schematic diagram of frequency composition of identification signals of electronic operating equipment according to a specific embodiment of the present invention;

3 is a schematic diagram of the composition of multiple switching detection sequences in a detection cycle of a receiving unit according to a specific embodiment of the present invention;

Fig. 4 is a flowchart of a signal detection and identification method according to a specific embodiment of the present invention.

In the accompanying drawings, the list of parts represented by each label is as follows:

1-host 2-electronic equipment

11-Receiving unit 21-Electronic operating equipment

22- Identification Frequency Generator 300～310-Process

Detailed ways

In order for those skilled in the art to further understand the features and technical content of the present invention, please refer to the following detailed description and accompanying drawings of the present invention. The accompanying drawings are provided for reference and illustration only, and are not intended to limit the present invention.

Figure 1 is a signal transceiving architecture diagram of a method for electronic equipment to transmit and receive signals to prevent interference according to a specific embodiment of the present invention. The signal transceiving architecture includes: a receiving unit 11 connected to a host 1, and a plurality of various types of electronic equipment with wireless signal transmission functions 2. Various types of electronic devices 2 include a plurality of identical electronic operating devices 21, which can be operated by users to transmit input data or command signals.

The various types of electronic equipment 2, in the framework of specific embodiments, can be mouse, keyboard, remote controller, voice input device, etc., and the electronic operating equipment 21 included in the various types of electronic equipment 2 are of the same type. Multiple electronic devices, such as multiple mice in the mouse category, multiple keyboards in the keyboard category, multiple remote controls in the remote control category, and multiple voices in the sound input device category. Input device to provide multiple input data or command signal transmission.

Various types of electronic devices 2 and the multiple identical electronic input devices 21 contained therein preset different identification signal frequencies independently generated to form a series of signal transmissions with input data and commands; the independent identification signal frequencies are used The identification frequency generator 22 of the electronic operating equipment 21 installed in various types of electronic equipment 2 receives the pressing operation of the user, and directly generates a random number. The unit 11 receives and stores it as a comparison and identification when the signal is received in the future.

The identification signal frequency, in a specific embodiment, includes a device identification code (PID) and a sub-identification code (ID), which are used to form a series of signals with the input data and commands of the electronic operating device for transmission, as shown in Figure 2 , wherein the equipment identification code is different identification data of various types of electronic equipment 2, such as mouse, keyboard, remote control, voice input device, etc., respectively set identification codes when leaving the factory, so the same electronic operating equipment may have the same The equipment identification code, and the sub-identification code is generated by the identification frequency generator 22 installed in each electronic operation equipment 21 in a random number manner, so that each electronic operation equipment 21 has an independent and different identification code; the equipment identification code The sub-identification codes are composed of a plurality of bit arrangements respectively. In a specific embodiment, 4bit, 5bit, 6bit... etc. can be used, so that 24, 25, 26... different arrangements of codes can be obtained respectively, providing For various types of electronic equipment 2 and the multiple electronic operating equipment 21 included, different device identification codes and sub-identification codes are arranged to form different signal frequencies, so that various types of electronic equipment 2 and the multiple electronic operating equipment 21 included have Data transmission is performed at different data frequencies.

The receiving unit 11 connected to the host 1, in the framework of the specific embodiment of the present invention, is a receiving end of RF transceiver technology, which receives input transmitted by the various types of electronic devices 2 and a plurality of electronic operating devices 21 in one direction. Data and command signals, and the receiving unit 11 detects and receives signals by continuously switching the detection sequence according to the set scan cycle at any time.

The signal detection and reception mode of the receiving unit 11 mainly cooperates with the software program to set the scanning cycle, for example, every 20ms is a detection cycle (this does not limit the present invention, and other time setting cycles can also be used), and continues To perform cyclic switching detection, the scanning cycle is further divided into multiple detection timings. As shown in Figure 3, the division of labor into three detection timings is described as an example. In one scanning cycle, the receiving unit 11 sequentially switches between different detection timings. Signal detection, each detection timing is set to correspond to a certain type of electronic equipment 2, for example, the first detection timing is set to correspond to the mouse’s transmission signal reception, and the second detection timing is set to correspond to the keyboard’s transmission Corresponding to signal reception, the third detection timing is set to correspond to the reception of the transmission signal of the remote control. In a certain set detection timing, only the signal of one type of electronic equipment is detected and received, and other types of electronic equipment are not detected and received. The signal of electronic equipment, and in this detection timing, can detect and receive multiple (about 8 times or more) transmission signals of multiple electronic operating devices 21 in this type of electronic equipment, therefore, the actual detection timing switches For the signal detection of multiple electronic operating devices 21 in various types of electronic devices 2, the conversion and detection speed is quite fast, which can reach a speed of more than one millionth of a second. When receiving signals transmitted by a plurality of electronic operating devices 21 of the corresponding type of electronic device 2, comparison and identification are carried out according to the identification signal frequency of each electronic operating device 21 stored in preset, so as to avoid the interference of the transmitting and receiving frequencies of electronic devices.

According to the structure of the method for preventing interference of electronic equipment sending and receiving signals and the signal detection, reception and identification method according to the embodiment of the present invention, the flow of the signal detection, reception, and identification method of a preferred embodiment will be described in detail below in conjunction with the accompanying drawings. Operational flow of the method for signal protection against interference.

FIG. 4 describes the signal detection, reception and identification process of a preferred embodiment of the method for preventing interference by sending and receiving signals of an electronic device according to the present invention. The user has previously used the identification frequency generator 22 to generate different independent identification signal frequencies in various types of electronic equipment 2 and a plurality of electronic operating equipment 21 in various types of electronic equipment 2 , and sends the identification signal The frequency transmission is received by the receiving unit 11 and stored.

The receiving unit connected to the host uses a software program to set the signal scanning cycle, and further sets multiple detection timings in the scanning cycle, and the corresponding type of electronic device 2 for each detection timing, such as the process 300;

The receiving unit 11 automatically switches each detection sequence to perform signal detection of various types of electronic devices 2 according to the set signal scanning cycle, as shown in the process 302;

The electronic device 2 and the electronic operating device 21 transmit a series of signals including identification signal frequency, input data and commands, as in process 304;

The receiving unit 11 detects and receives a single or multiple (about 8 or more) series of signal transmissions of the electronic operating device 21 in a certain detection sequence, as shown in process 306;

The receiving unit 11 compares and identifies the frequencies of the identification signals in the series of signals transmitted by the electronic operating devices 21 according to the preset stored identification signal frequencies of various types of electronic devices 2 and multiple electronic operating devices 21 , as shown in process 308 ;

If the identification is correct, the input data and command signals sent by the electronic operating device 21 are normally received, as in process 310 .

The present invention uses the receiving unit 11 to quickly switch the detection timing corresponding to the signals emitted by different electronic devices in the detection cycle according to the detection, reception, and identification processes and methods of the signals emitted by various types of electronic devices and multiple electronic operating devices. The independent and different identification signal frequencies set by each electronic operating device and input data and commands form a series of signals and transmit them. The receiving unit only receives the signal transmitted by a single electronic device at each detection timing, and combines the received signal with each electronic device. The operating equipment identifies the signal frequency for comparison and identification to prevent signal frequency interference and signal identification difficulties in the transmission and reception of electronic equipment signals.

The above is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structural transformation made by using the description of the present invention and the contents of the accompanying drawings, or directly or indirectly used in other related technical fields, All are included in the patent scope of the present invention in the same way.

Claims (12)

1. the method that electronic apparatus receiving and transmitting signal prevents to disturb is characterized in that, described method comprises: utilize various types of electronic equipment with radio frequency identification signal frequency function, and unidirectional to the mutually different knowledge frequency signal of debating of main frame transmission frequency; Utilize the receiving element that is connected with main frame, in a scan round cycle of setting, automatically switch and the corresponding detection sequential of various types of electronic equipment, carry out input and reception; Scanning receive corresponding setting kind class of electronic devices repeatedly or the consecutive signal of a plurality of electronic operation equipment unidirectional emission; Automatically according to the identification signal frequency of each electronic operation equipment of default storage, the identification signal frequency in the described consecutive signal of comparison identification is carried out unidirectional emission and is divided the work the detection identification and the interference of signal of electronic equipment emission for a long time and prevent.

2. electronic apparatus receiving and transmitting signal as claimed in claim 1 prevents from the method disturbed to it is characterized in that described receiving element cooperates software program to set the round-robin scan period.

3. electronic apparatus receiving and transmitting signal as claimed in claim 1 prevents from the method disturbed to it is characterized in that the described scan period further includes a plurality of detection sequential, is automaticallyed switch in the scan period by described receiving element, detects and received signal.

4. electronic apparatus receiving and transmitting signal as claimed in claim 1 prevents the method disturbed, it is characterized in that, in the described scan period each detects sequential, the corresponding a kind of class of electronic devices of difference, only transmitting of described corresponding electronic appliance detected and received in described detection sequential, the input of finishing the sequential division of labor is in case the stop signal interference.

5. electronic apparatus receiving and transmitting signal as claimed in claim 1 prevents from the method disturbed to it is characterized in that, described each detect in sequential, carry out the repeatedly detection and the reception of the signal of emission of described electronic equipment and described a plurality of electronic operation equipment.

6. electronic apparatus receiving and transmitting signal as claimed in claim 1 prevents the method disturbed, it is characterized in that, the identification signal frequency of described electronic operation equipment, be to start by the identification frequency generator that is contained in described electronic operation equipment, produce with random number way, described electronic equipment is launched described identification signal frequency, is received and storage by described receiving element, uses for the identification comparison; Described identification frequency generator is a button.

7. electronic apparatus receiving and transmitting signal as claimed in claim 1 prevents from the method disturbed to it is characterized in that the emission of consecutive signal is formed in data, the order of described identification signal frequency and the input of electronic operation equipment.

8. electronic apparatus receiving and transmitting signal as claimed in claim 1 prevents the method disturbed, it is characterized in that, the different identification signal frequencies that described each electronic operation equipment produces comprise equipment identification code and time identification code, and described equipment identification code and described identification code are rearranged by a plurality of positions respectively.

9. electronic apparatus receiving and transmitting signal as claimed in claim 1 prevents the method disturbed, it is characterized in that, described identification signal frequency comprises the equipment identification code of representing described electronic equipment and the inferior identification code of representing each electronic operation equipment described in the described electronic equipment, and described equipment identification code and described identification code are rearranged by a plurality of positions respectively.

10. electronic apparatus receiving and transmitting signal as claimed in claim 1 prevents from the method disturbed to it is characterized in that described electronic equipment is mouse, keyboard, telepilot or acoustic input dephonoprojectoscope.

11. electronic apparatus receiving and transmitting signal as claimed in claim 1 prevents the method disturbed, it is characterized in that the electronic operation equipment that described various types of electronic equipment comprises is a plurality of mouses, keyboard, telepilot or acoustic input dephonoprojectoscope identical in this kind class of electronic devices.

12. the method that electronic apparatus receiving and transmitting signal prevents to disturb is characterized in that, described method comprises:

The user produces and sets independent separately different identification signal frequency by the identification frequency generator of each electronic operation equipment in the various types of electronic equipment, and launches described identification signal frequency by electronic equipment, is received and storage by receiving element;

The described receiving element that connects main frame, setting signal scan period, and further set the described scan period and comprise a plurality of detection sequential, described each detect the detection that the corresponding a kind of class of electronic devices of sequential transmits;

Described receiving element is according to the signal scan cycle of described setting, and the described sequential that respectively detects that automaticallyes switch is carried out the detection that described various types of electronic equipment transmits;

The consecutive signal that described electronic equipment and the emission of electronic operation equipment are made up of identification signal frequency and input data, order;

Described receiving element detects and receives the consecutive signal of described electronic operation equipment emission in the detection sequential of change detection;

Described receiving element is according to the signal frequency of described each electronic operation equipment identification of default storage, with the identification of comparing of the identification signal frequency in the consecutive signal of described electronic operation equipment emission;

If identification is correct, input data, the command signal of then described electronic operation equipment emission normally receive.

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