CN108667482A - A kind of multi-protocols wireless transceiver and its working method based on FPGA - Google Patents
A kind of multi-protocols wireless transceiver and its working method based on FPGA Download PDFInfo
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- CN108667482A CN108667482A CN201810395547.4A CN201810395547A CN108667482A CN 108667482 A CN108667482 A CN 108667482A CN 201810395547 A CN201810395547 A CN 201810395547A CN 108667482 A CN108667482 A CN 108667482A
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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
- H04B1/401—Circuits for selecting or indicating operating mode
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/80—Services using short range communication, e.g. near-field communication [NFC], radio-frequency identification [RFID] or low energy communication
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
- H04W88/02—Terminal devices
- H04W88/06—Terminal devices adapted for operation in multiple networks or having at least two operational modes, e.g. multi-mode terminals
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Mobile Radio Communication Systems (AREA)
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Abstract
The invention belongs to wireless receiver technical fields, and in particular to a kind of multi-protocols wireless transceiver and its working method based on FPGA.The technical problem to be solved by the present invention is to propose a kind of multi-protocols wireless transceiver working method based on FPGA, by using various protocols transmission data, it is single to solve current wireless receiver communication protocol, the small problem of use scope, the present invention includes FPGA, clock module, usb interface module, reminding module, mode selection switch, memory module and wireless communication module, the present invention can be carried out data transmission by various communications protocols and terminal device, widely used, and practicability is high.
Description
Technical field
The invention belongs to wireless receiver technical fields, and in particular to a kind of multi-protocols wireless transceiver based on FPGA and
Its working method.
Background technology
Current wireless receiver comprehensive cannot cover most wireless communication protocol, and use scope is limited, Wu Fazhen
Product and equipment between different agreement carry out data exchange, and single communication protocol is easier leakage information, safety
It is relatively low.
Invention content
According to the above-mentioned deficiencies of the prior art, a kind of based on the more of FPGA the technical problem to be solved by the present invention is to propose
Agreement wireless transceiver, by using various protocols transmission data, it is single to solve wireless receiver communication protocol, use scope
Small problem has the effect of adapting to various communications protocols.
In order to solve the above-mentioned technical problem, the technical solution adopted by the present invention is：
A kind of multi-protocols wireless transceiver based on FPGA, including FPGA, clock module, usb interface module, prompt mould
Block, mode selection switch, memory module and wireless communication module；
The mode selection switch is connected with FPGA, the operating mode for selecting the present apparatus, FPGA also respectively with clock
Module, memory module, wire communication module and wireless communication module are bi-directionally connected, and control the work of reminding module；
The wire communication module includes usb interface module, and usb interface module is bi-directionally connected with FPGA；
The mode selection switch may be selected to close pattern and communication pattern, and when selecting to communication pattern, the present apparatus can
Carried out data transmission by usb interface module and terminal device as mobile hard disk；
Indicator light or display screen can be used in the reminding module, the working condition for showing the present apparatus；
The wireless communication module carries out wireless data transmission for the present apparatus and terminal device；Wireless communication module includes
Bluetooth-communication unit and wireless network card, bluetooth-communication unit and wireless network card are respectively bi-directionally connected with FPGA；The pattern choosing
Switch is selected also to may be selected to WiFi patterns and bluetooth mode；User can manually select bluetooth as desired by mode selection switch
Communication mode or wireless network carry out data transmission.
Preferably, the memory module includes SD memory card interfaces and TF memory card interfaces, can data be passed through SD respectively
Memory card interface and TF memory card interfaces are stored in SD storage cards and TF storage cards, the present apparatus can automatic identification whether have insertion
SD storage cards or TF storage cards, user can pre-set the priority of storage mode, may also set up while storing as needed
In SD storage cards and TF storage cards.
Preferably, the memory module includes internal memory, can be stored data in internal memory.
Preferably, the present apparatus further includes power module, and when the present apparatus is not connect with computer, power module is this
Device is directly powered, and wireless data transmission is carried out as wireless transmitting-receiving equipments and terminal device.
Preferably, the mode selection switch also may be selected to UART patterns, and the present apparatus further includes T-type interface, for
Terminal device carries out RS232 communications, it can also be used to be connect with charger baby, the present apparatus is supplied electricity to by charger baby.
A kind of working method of the multi-protocols wireless transceiver based on FPGA, including communication pattern, bluetooth mode, WiFi moulds
Formula or UART patterns, steps are as follows for communication pattern：
Step S1：Mode selection switch is selected to communication pattern；
Step S2：The present apparatus is connect by USB interface with terminal device, and after successful connection, reminding module prompt connects into
Work(；
Step S3：The present apparatus carries out data transmission as mobile hard disk and terminal device；
Step S4：When needing to store data, the present apparatus stores data in memory module；If the present apparatus is not inserted into SD storages
Card or TF storage cards, the present apparatus directly store data to internal memory；If the present apparatus is stored inserted with SD storage cards or TF
Card, the present apparatus will store data according to the priority of pre-set storage mode, can also use multiple storage modes simultaneously.
Preferably, steps are as follows for the bluetooth mode：
Step K1：Mode selection switch is selected to bluetooth mode, and power module is directly that the present apparatus is powered, and the present apparatus is opened
Bluetooth；
Step K2：The present apparatus is connect by bluetooth-communication unit with terminal device, and after successful connection, reminding module prompt connects
It is connected into work(；
Step K3：The present apparatus is carried out data transmission with terminal device by bluetooth approach；
Step K4：When needing to store data, the present apparatus stores data in memory module；If the present apparatus is not inserted into SD storages
Card or TF storage cards, the present apparatus directly store data to internal memory；If the present apparatus is stored inserted with SD storage cards or TF
Card, the present apparatus will store data according to the priority of pre-set storage mode, can also use multiple storage modes simultaneously.
Preferably, the WiFi mode steps are as follows：
Step M1：Mode selection switch is selected to WiFi patterns, and power module is directly that the present apparatus is powered, wireless network card hair
Go out Wi-Fi hotspot；
Step M2：Terminal device is connect by the Wi-Fi hotspot of the present apparatus with the present apparatus, and after successful connection, reminding module carries
Show successful connection；
Step M3：The present apparatus is carried out data transmission with terminal device by wireless network；
Step M4：When needing to store data, the present apparatus stores data in memory module；If the present apparatus is not inserted into SD storages
Card or TF storage cards, the present apparatus directly store data to internal memory；If the present apparatus is stored inserted with SD storage cards or TF
Card, the present apparatus will store data according to the priority of pre-set storage mode, can also use multiple storage modes simultaneously.
Preferably, further include step after the step M4：
Local data is uploaded to network cloud disk by the present apparatus automatically by wireless network, is backed up.
Preferably, the UART mode steps are as follows：
Step N1：Mode selection switch is selected to WiFi patterns；
Step N2：Terminal device is connect by T-type interface with the present apparatus, and after successful connection, reminding module prompt connects into
Work(；
Step N3：The present apparatus carries out serial communication with terminal device by T-type interface；
Step N4：When needing to store data, the present apparatus stores data in memory module；If the present apparatus is not inserted into SD storages
Card or TF storage cards, the present apparatus directly store data to internal memory；If the present apparatus is stored inserted with SD storage cards or TF
Card, the present apparatus will store data according to the priority of pre-set storage mode, can also use multiple storage modes simultaneously.
Present invention has the advantages that：
1, the present invention can be carried out data transmission by various communications protocols and terminal device, and user can select according to actual needs
Data transfer mode is selected, the present invention is widely used, and practicability is high；
2, local data can be uploaded to network cloud disk automatically by wireless network, local and network dual backup more can
Protect data not easy to lose.
Description of the drawings
The content expressed by this specification attached drawing and the label in figure are briefly described below：
Fig. 1 is the overall structure figure of the specific implementation mode of the present invention.
Fig. 2 is the bluetooth-communication unit structure chart of the specific implementation mode of the present invention.
Fig. 3 is the T-type interface connection figure of the specific implementation mode of the present invention.
Specific implementation mode
Below by the description to embodiment, the shape of for example involved each component of specific implementation mode of the invention, structure
It makes, the mutual alignment between each section and connection relation, the effect of each section and operation principle, manufacturing process and the side of operating with
Method etc., is described in further detail, completeer to help those skilled in the art to have the inventive concept of the present invention, technical solution
Whole, accurate and deep understanding.
A kind of multi-protocols wireless transceiver based on FPGA, as shown in Figure 1, including FPGA, clock module, USB interface mould
Block, reminding module, mode selection switch, memory module and wireless communication module；Mode selection switch is connected with FPGA, for selecting
The operating mode of apparatus selected, FPGA are also double with clock module, memory module, wire communication module and wireless communication module respectively
To connection, and control the work of reminding module；Wherein, wire communication module includes usb interface module, usb interface module with
FPGA is bi-directionally connected；Mode selection switch may be selected to close pattern and communication pattern, and when selecting to communication pattern, the present apparatus can
Carried out data transmission by usb interface module and terminal device as mobile hard disk.
Indicator light or display screen can be used in reminding module, the working condition for showing the present apparatus.
Chips of the FPGA as master control, controls the transmitting-receiving of data.FPGA uses logical cell array LCA (Logic
Cell Array) this new concept, inside includes configurable logic blocks CLB (Configurable Logic Block), defeated
Go out input module IOB (Input Output Block) and three parts of interconnector (Interconnect).FPGA is not using
It is same as the design method of PLD frameworks, possesses higher density and capacity, also has many advantages, such as that I/O is more, low in energy consumption, however its cloth
Line is complicated, also results in sequential time delay, and be in free-standing, delay time is longer.The framework of FPGA mainly have SRAM Base and
Two kinds of design patterns of Anti-fuse, wherein the characteristics of SRAM Base are repeatable programmings, low-power consumption, can carry out system reconfiguration；
Anti-fuse can provide preferably protection due to having the characteristic of a burning (OTP) in confidentiality.
Wireless communication module carries out wireless data transmission for the present apparatus and terminal device.Wireless communication module includes bluetooth
Communication unit and wireless network card；The structure of bluetooth-communication unit as shown in Fig. 2, bluetooth-communication unit and wireless network card respectively with
FPGA is bi-directionally connected；Mode selection switch also may be selected to WiFi patterns and bluetooth mode；User can be as desired by pattern
Selecting switch manually selects Blue-tooth communication method or wireless network carries out data transmission.Preferably, the present apparatus can pass through wireless network
Card automated back-up to network cloud disk, local and network dual backup more can protect data not easy to lose.
Memory module includes SD memory card interfaces and TF memory card interfaces, can by data respectively by SD memory card interfaces and
TF memory card interfaces are stored in SD storage cards and TF storage cards, the present apparatus can automatic identification whether have and be inserted into SD storage cards or TF
Storage card, user can pre-set the priority of storage mode as needed, may also set up and meanwhile be stored in SD storage cards and
In TF storage cards.
Preferably, memory module further includes internal memory, can when the present apparatus is not inserted into SD storage cards and TF storage cards
It stores data in internal memory.
Preferably, the present apparatus further includes power module, and when the present apparatus is not connect with computer, power module is the present apparatus
It directly powers, wireless data transmission is carried out as wireless transmitting-receiving equipments and terminal device (such as smart mobile phone, removable computer).
Preferably, mode selection switch may be selected to UART patterns, and wire communication module further includes T-type interface, such as Fig. 3 institutes
Show, for carrying out RS232 communications with terminal device, it can also be used to be connect with charger baby, the present apparatus is supplied electricity to by charger baby.
A kind of working method of the multi-protocols wireless transceiver based on FPGA, including communication pattern, bluetooth mode, WiFi moulds
Formula or UART patterns, steps are as follows for communication pattern：
Step S1：Mode selection switch is selected to communication pattern；
Step S2：The present apparatus is connect by USB interface with terminal device (such as computer), and after successful connection, reminding module carries
Show successful connection；
Step S3：The present apparatus carries out data transmission as mobile hard disk and terminal device；
Step S4：When needing to store data, the present apparatus stores data in memory module；If the present apparatus is not inserted into SD storages
Card or TF storage cards, the present apparatus directly store data to internal memory；If the present apparatus is stored inserted with SD storage cards or TF
Card, the present apparatus will store data according to the priority of pre-set storage mode, can also use multiple storage modes simultaneously.
Although although bluetooth connection speed and distance are much compared to difference for WiFi, the power consumption of Bluetooth transmission compared with
It is low, and if terminal device bluetooth can be selected when other WiFi being needed to provide data network, both ensure not conflict, the present apparatus
Steps are as follows for bluetooth mode：
Step K1：Mode selection switch is selected to bluetooth mode, and power module is directly that the present apparatus is powered, and the present apparatus is opened
Bluetooth；
Step K2：The present apparatus is connect by bluetooth-communication unit with terminal device, and after successful connection, reminding module prompt connects
It is connected into work(；
Step K3：The present apparatus is carried out data transmission with terminal device by bluetooth approach；
Step K4：When needing to store data, the present apparatus stores data in memory module；If the present apparatus is not inserted into SD storages
Card or TF storage cards, the present apparatus directly store data to internal memory；If the present apparatus is stored inserted with SD storage cards or TF
Card, the present apparatus will store data according to the priority of pre-set storage mode, can also use multiple storage modes simultaneously.
WiFi mode steps are as follows：
Step M1：Mode selection switch is selected to WiFi patterns, and power module is directly that the present apparatus is powered, wireless network card hair
Go out Wi-Fi hotspot；
Step M2：Terminal device is connect by the Wi-Fi hotspot of the present apparatus with the present apparatus, and after successful connection, reminding module carries
Show successful connection；
Step M3：The present apparatus is carried out data transmission with terminal device by wireless network；
Step M4：When needing to store data, the present apparatus stores data in memory module；If the present apparatus is not inserted into SD storages
Card or TF storage cards, the present apparatus directly store data to internal memory；If the present apparatus is stored inserted with SD storage cards or TF
Card, the present apparatus will store data according to the priority of pre-set storage mode, can also use multiple storage modes simultaneously.
Step M5：Local data is uploaded to network cloud disk by the present apparatus automatically by wireless network, is backed up.
The UART mode steps of the present apparatus are as follows：
Step N1：Mode selection switch is selected to WiFi patterns；
Step N2：Terminal device is connect by T-type interface with the present apparatus, and after successful connection, reminding module prompt connects into
Work(；
Step N3：The present apparatus carries out serial communication with terminal device by T-type interface；
Step N4：When needing to store data, the present apparatus stores data in memory module；If the present apparatus is not inserted into SD storages
Card or TF storage cards, the present apparatus directly store data to internal memory；If the present apparatus is stored inserted with SD storage cards or TF
Card, the present apparatus will store data according to the priority of pre-set storage mode, can also use multiple storage modes simultaneously.
Present invention could apply to a variety of situations, such as picture, music, miniature video stream, it is logical that it is adjusted as needed
Believe agreement.If data flow bit wide is smaller, data volume is small, you can is sent using serial port protocol；If data volume is larger, such as music regards
Frequently, in order to ensure real-time, the more preferable transmission for completing data under asynchronous clock is more excellent using 3.0 consultations of USB.Meanwhile it moving
Dynamic equipment connection mode also can be varied, such as bluetooth, WLAN, meets the development of modern science and technology, realizes multi-functional
The transmission of data.The present invention can put into various uses using extensively.
The present invention is exemplarily described above, it is clear that present invention specific implementation is not subject to the restrictions described above,
As long as using the improvement of the various unsubstantialities of inventive concept and technical scheme of the present invention progress, or not improved this is sent out
Bright design and technical solution directly applies to other occasions, within protection scope of the present invention.The protection of the present invention
Range should be determined by the scope of protection defined in the claims.
Claims (10)
1. a kind of multi-protocols wireless transceiver based on FPGA, which is characterized in that including FPGA, clock module, USB interface mould
Block, reminding module, mode selection switch, memory module and wireless communication module；
The mode selection switch is connected with FPGA, the operating mode for selecting the present apparatus, FPGA also respectively with clock module,
Memory module, wire communication module and wireless communication module are bi-directionally connected, and control the work of reminding module；
The wire communication module includes usb interface module, and usb interface module is bi-directionally connected with FPGA；
The mode selection switch may be selected to close pattern and communication pattern, and when selecting to communication pattern, the present apparatus can be used as
Mobile hard disk is carried out data transmission by usb interface module and terminal device；
Indicator light or display screen can be used in the reminding module, the working condition for showing the present apparatus；
The wireless communication module carries out wireless data transmission for the present apparatus and terminal device；Wireless communication module includes bluetooth
Communication unit and wireless network card, bluetooth-communication unit and wireless network card are respectively bi-directionally connected with FPGA；The model selection is opened
Pass also may be selected to WiFi patterns and bluetooth mode；User can manually select Bluetooth communication as desired by mode selection switch
Mode or wireless network carry out data transmission.
2. the multi-protocols wireless transceiver according to claim 1 based on FPGA, which is characterized in that the memory module packet
SD memory card interfaces and TF memory card interfaces are included, data can be stored in by SD memory card interfaces and TF memory card interfaces respectively
In SD storage cards and TF storage cards, the present apparatus can automatic identification whether have be inserted into SD storage cards or TF storage cards, user can basis
The priority for needing to pre-set storage mode, may also set up while being stored in SD storage cards and TF storage cards.
3. the multi-protocols wireless transceiver according to claim 1 based on FPGA, which is characterized in that the memory module packet
Internal memory is included, can be stored data in internal memory.
4. the multi-protocols wireless transceiver according to claim 1 based on FPGA, which is characterized in that the present apparatus is also wrapped
Power module is included, when the present apparatus is not connect with computer, power module is that the present apparatus is directly powered, as wireless transmitting-receiving equipments
Wireless data transmission is carried out with terminal device.
5. the multi-protocols wireless transceiver according to claim 1 based on FPGA, which is characterized in that the model selection is opened
Pass also may be selected to UART patterns, and the present apparatus further includes T-type interface, for carrying out RS232 communications with terminal device, it can also be used to
It is connect with charger baby, the present apparatus is supplied electricity to by charger baby.
6. a kind of working method of the multi-protocols wireless transceiver based on FPGA, which is characterized in that including communication pattern, bluetooth mould
Formula, WiFi patterns or UART patterns, steps are as follows for communication pattern：
Step S1：Mode selection switch is selected to communication pattern；
Step S2：The present apparatus is connect by USB interface with terminal device, and after successful connection, reminding module prompts successful connection；
Step S3：The present apparatus carries out data transmission as mobile hard disk and terminal device；
Step S4：When needing to store data, the present apparatus stores data in memory module；If the present apparatus be not inserted into SD storage cards or
TF storage cards, the present apparatus directly store data to internal memory；If the present apparatus is inserted with SD storage cards or TF storage cards, originally
Device will store data according to the priority of pre-set storage mode, can also use multiple storage modes simultaneously.
7. the working method of the multi-protocols wireless transceiver according to claim 5 based on FPGA, which is characterized in that described
Steps are as follows for bluetooth mode：
Step K1：Mode selection switch is selected to bluetooth mode, and power module is directly that the present apparatus is powered, and the present apparatus is opened blue
Tooth；
Step K2：The present apparatus is connect by bluetooth-communication unit with terminal device, and after successful connection, reminding module prompt connects into
Work(；
Step K3：The present apparatus is carried out data transmission with terminal device by bluetooth approach；
Step K4：When needing to store data, the present apparatus stores data in memory module；If the present apparatus be not inserted into SD storage cards or
TF storage cards, the present apparatus directly store data to internal memory；If the present apparatus is inserted with SD storage cards or TF storage cards, originally
Device will store data according to the priority of pre-set storage mode, can also use multiple storage modes simultaneously.
8. the working method of the multi-protocols wireless transceiver according to claim 5 based on FPGA, which is characterized in that described
WiFi mode steps are as follows：
Step M1：Mode selection switch is selected to WiFi patterns, and power module is directly that the present apparatus is powered, and wireless network card is sent out
Wi-Fi hotspot；
Step M2：Terminal device is connect by the Wi-Fi hotspot of the present apparatus with the present apparatus, and after successful connection, reminding module prompt connects
It is connected into work(；
Step M3：The present apparatus is carried out data transmission with terminal device by wireless network；
Step M4：When needing to store data, the present apparatus stores data in memory module；If the present apparatus be not inserted into SD storage cards or
TF storage cards, the present apparatus directly store data to internal memory；If the present apparatus is inserted with SD storage cards or TF storage cards, originally
Device will store data according to the priority of pre-set storage mode, can also use multiple storage modes simultaneously.
9. the working method of the multi-protocols wireless transceiver according to claim 7 based on FPGA, which is characterized in that described
Step M4 after further include step：
Local data is uploaded to network cloud disk by the present apparatus automatically by wireless network, is backed up.
10. the working method of the multi-protocols wireless transceiver according to claim 5 based on FPGA, which is characterized in that institute
It is as follows to state UART mode steps：
Step N1：Mode selection switch is selected to WiFi patterns；
Step N2：Terminal device is connect by T-type interface with the present apparatus, and after successful connection, reminding module prompts successful connection；
Step N3：The present apparatus carries out serial communication with terminal device by T-type interface；
Step N4：When needing to store data, the present apparatus stores data in memory module；If the present apparatus be not inserted into SD storage cards or
TF storage cards, the present apparatus directly store data to internal memory；If the present apparatus is inserted with SD storage cards or TF storage cards, originally
Device will store data according to the priority of pre-set storage mode, can also use multiple storage modes simultaneously.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810395547.4A CN108667482A (en) | 2018-04-27 | 2018-04-27 | A kind of multi-protocols wireless transceiver and its working method based on FPGA |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810395547.4A CN108667482A (en) | 2018-04-27 | 2018-04-27 | A kind of multi-protocols wireless transceiver and its working method based on FPGA |
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| Publication Number | Publication Date |
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| CN108667482A true CN108667482A (en) | 2018-10-16 |
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| CN201810395547.4A Pending CN108667482A (en) | 2018-04-27 | 2018-04-27 | A kind of multi-protocols wireless transceiver and its working method based on FPGA |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110995313A (en) * | 2019-12-18 | 2020-04-10 | 协成科技股份有限公司 | Enhanced data relay equipment |
| CN111432387A (en) * | 2020-03-31 | 2020-07-17 | Tcl移动通信科技（宁波）有限公司 | Many-to-many switching module, multi-machine wireless communication system and communication method thereof |
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| CN104102359A (en) * | 2013-04-03 | 2014-10-15 | 宝德科技股份有限公司 | Electronic device with wired and wireless switching function |
| CN205384633U (en) * | 2016-01-21 | 2016-07-13 | 深圳市智凌无线科技有限公司 | Mobile storage ware with WIFI data communication function |
| CN206759736U (en) * | 2017-06-06 | 2017-12-15 | 山东师范大学 | Portable data transmitter based on bluetooth and WIFI |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104102359A (en) * | 2013-04-03 | 2014-10-15 | 宝德科技股份有限公司 | Electronic device with wired and wireless switching function |
| CN205384633U (en) * | 2016-01-21 | 2016-07-13 | 深圳市智凌无线科技有限公司 | Mobile storage ware with WIFI data communication function |
| CN206759736U (en) * | 2017-06-06 | 2017-12-15 | 山东师范大学 | Portable data transmitter based on bluetooth and WIFI |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110995313A (en) * | 2019-12-18 | 2020-04-10 | 协成科技股份有限公司 | Enhanced data relay equipment |
| CN111432387A (en) * | 2020-03-31 | 2020-07-17 | Tcl移动通信科技（宁波）有限公司 | Many-to-many switching module, multi-machine wireless communication system and communication method thereof |
| CN111432387B (en) * | 2020-03-31 | 2024-01-23 | 河北世纪恒兴电子技术有限公司 | Many-to-many switching module, multi-machine wireless communication system and communication method thereof |
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Application publication date: 20181016 |