CN206805761U - A kind of data transmission device with master and slave wireless module - Google Patents
A kind of data transmission device with master and slave wireless module Download PDFInfo
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- CN206805761U CN206805761U CN201720510350.1U CN201720510350U CN206805761U CN 206805761 U CN206805761 U CN 206805761U CN 201720510350 U CN201720510350 U CN 201720510350U CN 206805761 U CN206805761 U CN 206805761U
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Abstract
The utility model provides a kind of data transmission device with master and slave wireless module; including main wireless module, from wireless module and communication bus; main wireless module is connected by serial ports with PC terminals; the first main rf chip and the second main rf chip are set in simultaneously; it is respectively used to receive normal instructions data and exception or alert data; several can be set from wireless module; inside set from rf chip and in main wireless module wireless connection, while be connected by fieldbus with application apparatus end.The design of the Double RF transceiving chip of main wireless module in the utility model device, phenomena such as communicating interim card caused by when can effectively avoid the application apparatus end of connection from sending exception or alarm signal, there is good accuracy, real-time and reliability.
Description
Technical field
It the utility model is related to radio communication and technical field of data transmission, and in particular to one kind has master and slave wireless mould
The data transmission device of block.
Background technology
Wireless communication technology has low cost, the easy to carry, wiring that through walls need not drill, taken compared with cable communicating technology
The advantages that establishing network simple and fast.But wireless data transmission has the features such as unstability, agreement unicity, cause wirelessly to set
The problems such as poor compatibility, the accuracy of standby communication be low.Therefore, the data between a receiving terminal and multiple transmitting terminals how to be realized
Transmission and anticollision when how more effectively to solve the problems, such as radio communication, into improve wireless data transmission accuracy,
The key problem of real-time and reliability.
Utility model content
The utility model for solve it is above-mentioned in technical problem, there is provided it is a kind of flexible structure, highly reliable, can be achieved wireless
The wireless data transmission device of data double-way transmission.
Technical scheme is used by the utility model：
A kind of data transmission device with master and slave wireless module, including,
- main wireless module, for receiving radio data and is transferred to PC terminals, and receives the instruction from PC terminals simultaneously
To from wireless module transmission, including serial port circuit, the first main rf chip and the second main rf chip, serial port circuit
It is connected by external serial port data line with PC terminals, the first main rf chip and the second main rf chip are logical
The different data transmit-receive frequency range in road, the first main rf chip are used for normal instructions data transfer, and second master penetrates
Frequency transceiving chip is used for exception or alarm command data transfer；
- from wireless module, the instruction of autonomous wireless module is carried out for receiving, and the above-mentioned instruction of reception is transferred to and answered
With equipment end, including bus interface circuit, from rf chip, it is described from rf chip and above-mentioned main wireless module
First main rf chip and the second main rf chip carry out communications；
- communication bus, it is described total by its from wireless module for that described will be connected from wireless module with application apparatus end
Line circuit is connected with communication bus.
The main wireless module also includes the first single-chip microcomputer, the first power circuit and the first storage circuit, and described first is single
The receiving terminal of piece machine is connected with the transmitting terminal of the serial port circuit, transmitting terminal and the serial port circuit of first single-chip microcomputer
Receiving terminal connects.
It is described also to include second singlechip, second source circuit, the second storage circuit and toggle switch, institute from wireless module
The receiving terminal for stating second singlechip is connected with the transmitting terminal of the bus interface circuit, the transmitting terminal of the second singlechip and institute
State the receiving terminal connection of bus interface circuit.
The bus interface circuit from wireless module is RS485 Field Bus Interface Circuits, and the communication bus is
RS485 fieldbus.
Data transmission device of the present utility model with master and slave wireless module, can pass through the distribution of " one master and multiple slaves "
Structure setting, the transmitted in both directions of wireless data is realized, independent microcontroller is each equipped with out of wireless module, with main nothing
The communication of wire module is independent of each other, and because of the failure of some wireless module whole system will not be made out of hand, while main wireless
The design of the Double RF transceiving chip of module, caused when can effectively avoid the application apparatus end of connection from sending exception or alarm signal
Communication interim card phenomena such as, there is good accuracy, real-time and reliability.
Brief description of the drawings
Fig. 1 is the workflow diagram of the utility model device；
Fig. 2 is the main wireless module structured flowchart of the utility model device；
Fig. 3 is the utility model device from wireless module structured flowchart.
Illustrate：The main wireless modules of 101-, 102- is from wireless module, 103-RS485 fieldbus, 104- serial datas
Line, 105-PC terminals, 106- application apparatus end, the single-chip microcomputers of 201- first, the power circuits of 202- first, 203- first store electricity
Road, 204- serial port circuits, the first main rf chips of 205-, the second main rf chips of 206-, 301- second singlechips,
302- second sources circuit, the storage circuits of 303- second, 304-RS485 Field Bus Interface Circuits.
Embodiment
Below in conjunction with the accompanying drawings, the utility model is further described.
A kind of data transmission device with master and slave wireless module 102 of the present embodiment, is to avoid in PC terminals 105
By in controlled in wireless and transmitting procedure between multiple application apparatus ends 106, because of all kinds of signal, the data such as normal, abnormal
Collide, and caused by data transfer interim card, and design wireless data transmission device.
As shown in figure 1, the workflow diagram of the present embodiment wireless data transmission device, the present embodiment device wireless data passes
Defeated module uses " one master and multiple slaves " pattern, i.e., provided with a main wireless module 101 and several from wireless module 102.It is main wireless
Serial port circuit 204 is set in module 101, and is connected by external serial port data line 104 with PC terminals 105, while main wireless mould
Also radio transceiver chip is provided with block 101, to receiving radio data and is transferred to PC terminals 105, while receives and comes from
The instruction of PC terminals 105 is simultaneously transmitted to following from wireless module 102.RS485 field-bus interfaces electricity is set out of wireless module 102
Road 304, RS485 Field Bus Interface Circuits 304 are connected by external RS485 fieldbus 103 with application apparatus end 106,
Also be provided with radio transceiver chip out of wireless module 102 simultaneously, can with the main wireless module 101 progress wireless connection and
Data transfer, so as to realize the wireless collection and controlled in wireless of the data of 105 application device end of PC terminals 106.
The structured flowchart of main wireless module 101 as shown in Figure 2, by serial port circuit 204, the first main rf chip 205,
Second main rf chip 206, the first single-chip microcomputer 201, the first power circuit 202 and the first storage circuit 203 form, and first
The receiving terminal of single-chip microcomputer 201 is connected with the transmitting terminal of the serial port circuit 204, transmitting terminal and the string of the first single-chip microcomputer 201
The receiving terminal connection of mouth circuit 204, serial port circuit 204 is connected by external serial port data line 104 with PC terminals 105, described
First storage circuit 203 is used to store the data message and PC terminals 105 for being sent to main wireless module 101 from wireless module 102
It is sent to the instruction of main wireless module 101.First main 205 and second main rf chip 206 of rf chip is passage
Different data transmit-receive frequency ranges, the first main rf chip 205 are used for normal instructions data transfer, the second main radio-frequency receiving-transmitting core
Piece 206 is used for exception or alarm command data transfer.Come normal data and abnormal data being transmitted from wireless module 102 simultaneously
When, set by the judgement to the first main main reception signal of rf chip 206 of rf chip 205 and second in advance,
The first main 205 and second main rf chip 206 of rf chip is respectively enterd, avoids receiving inhomogeneous data simultaneously
When, data collision occurs, cause PC terminals 105, application apparatus end 106 or the two the consequence of interim card occurs simultaneously.
It is as shown in Figure 3 from the structured flowchart of wireless module 102, by bus interface circuit, single from rf chip second
Piece machine 301, second source circuit 302, the second storage circuit 303 and toggle switch composition, the receiving terminal of the first single-chip microcomputer 201 with
The transmitting terminal connection of the serial port circuit 204, the receiving terminal of the transmitting terminal of the first single-chip microcomputer 201 and the serial port circuit 204 connect
Connect, second storage circuit 303 is used to storing application apparatus end 106 and is sent to from the data of wireless module 102 and main wireless
Module 101 is sent to the instruction from wireless module 102.Penetrated from the first master of rf chip and above-mentioned main wireless module 101
205 and second main rf chip 206 of frequency transceiving chip carries out communications, and RS485 Field Bus Interface Circuits 304 pass through
External RS485 fieldbus 103 is connected with application apparatus end 106.RS485 field-bus interfaces are used from wireless module 102
Circuit 304 simultaneously connects the advantage of RS485 fieldbus 103 and is that the antijamming capability of RS485 fieldbus 103 is good, transmission rate
It hurry up, maximum transmission rate can support multinode to connect up to 10Mbps, can typically support 32 nodes or more, and even
Connect rear simple in construction, be the half-duplex operation that point to multi--point can be achieved only with RS485 fieldbus 103, form distributed
System.
It is described above only to express the preferred embodiment of the present invention, its describe it is more specific and in detail, but can not be because
This and be interpreted as the limitation to the scope of the claims of the present invention.It should be pointed out that for the person of ordinary skill of the art,
On the premise of not departing from present inventive concept, some deformations can also be made, improves and substitutes, these belong to the protection of the present invention
Scope.Therefore, the protection domain of patent of the present invention should be determined by the appended claims.
Claims (4)
- A kind of 1. data transmission device with master and slave wireless module, it is characterised in that：Including,- main wireless module, for receiving radio data and is transferred to PC terminals, and receive the instruction from PC terminals and to from Wireless module transmission, including serial port circuit, the first main rf chip and the second main rf chip, serial port circuit pass through External serial port data line is connected with PC terminals, the first main rf chip and the second main rf chip be passage not Same data transmit-receive frequency range, the first main rf chip are used for normal instructions data transfer, and the second main radio frequency is received Hair chip is used for exception or alarm command data transfer；- from wireless module, the instruction of autonomous wireless module is carried out for receiving, and the above-mentioned instruction of reception is transferred to apply and set Standby end, including bus interface circuit, from rf chip, it is described from the first of rf chip and above-mentioned main wireless module Main rf chip and the second main rf chip carry out communications；- communication bus, it is described to pass through its bus electricity from wireless module for that described will be connected from wireless module with application apparatus end Road is connected with communication bus.
- A kind of 2. data transmission device with master and slave wireless module according to claim 1, it is characterised in that：It is described Main wireless module also includes the first single-chip microcomputer, the first power circuit and the first storage circuit, the receiving terminal of first single-chip microcomputer It is connected with the transmitting terminal of the serial port circuit, the transmitting terminal of first single-chip microcomputer is connected with the receiving terminal of the serial port circuit.
- A kind of 3. data transmission device with master and slave wireless module according to claim 1, it is characterised in that：It is described Also include second singlechip, second source circuit, the second storage circuit and toggle switch, the second singlechip from wireless module Receiving terminal be connected with the transmitting terminal of the bus interface circuit, the transmitting terminal of the second singlechip and the EBI electricity The receiving terminal connection on road.
- A kind of 4. data transmission device with master and slave wireless module according to claim 1, it is characterised in that：It is described It is RS485 Field Bus Interface Circuits from the bus interface circuit of wireless module, the communication bus is RS485 fieldbus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720510350.1U CN206805761U (en) | 2017-05-09 | 2017-05-09 | A kind of data transmission device with master and slave wireless module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720510350.1U CN206805761U (en) | 2017-05-09 | 2017-05-09 | A kind of data transmission device with master and slave wireless module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206805761U true CN206805761U (en) | 2017-12-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720510350.1U Expired - Fee Related CN206805761U (en) | 2017-05-09 | 2017-05-09 | A kind of data transmission device with master and slave wireless module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206805761U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108776196A (en) * | 2018-05-31 | 2018-11-09 | 深圳市沃特沃德股份有限公司 | Drunk driving self-checking system based on short-distance wireless communication and method |
| CN113865650A (en) * | 2021-10-09 | 2021-12-31 | 黄河勘测规划设计研究院有限公司 | Bank protection riprap stability monitoring system and monitoring method thereof |
-
2017
- 2017-05-09 CN CN201720510350.1U patent/CN206805761U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108776196A (en) * | 2018-05-31 | 2018-11-09 | 深圳市沃特沃德股份有限公司 | Drunk driving self-checking system based on short-distance wireless communication and method |
| CN113865650A (en) * | 2021-10-09 | 2021-12-31 | 黄河勘测规划设计研究院有限公司 | Bank protection riprap stability monitoring system and monitoring method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171226 Termination date: 20180509 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |