CN212785393U - 485 bus data repeater based on GPRS and Wifi communication - Google Patents
485 bus data repeater based on GPRS and Wifi communication Download PDFInfo
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- CN212785393U CN212785393U CN202020679046.1U CN202020679046U CN212785393U CN 212785393 U CN212785393 U CN 212785393U CN 202020679046 U CN202020679046 U CN 202020679046U CN 212785393 U CN212785393 U CN 212785393U
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Abstract
The utility model provides a 485 bus data repeater based on GPRS and Wifi communication, including 485 interfaces, GPRS module, Wifi module, singlechip, serial memory, connector, power module, GPRS module, Wifi module, serial memory with the singlechip is connected, the 485 interfaces pass through the 485 chip with the singlechip is connected, the GPRS module is equipped with bluetooth module, 485 interface connection transient state restraines diode (TVS), power module is 12V direct current with outside 220V alternating current conversion and provides DC power supply output to 485 equipment through the relay. The utility model discloses on 485 communication protocol's basis, establish and forward the mechanism, convert 485 communication protocol's data into wireless data transmission, from this, avoided short, the not enough scheduling problem of reliability of communication distance that wired transmission brought.
Description
Technical Field
The utility model relates to a data communication technical field specifically is a 485 bus data repeater based on GPRS and Wifi communication.
Background
The 485 communication protocol is a protocol based on wired data transmission and is widely applicable to various electronic devices. However, the 485 protocol can only perform wired transmission, and although the 485 protocol has a transmission distance of 1200 meters, cabling is required, so that the construction cost and the maintenance cost are increased, and the reliability of remote data communication is low.
SUMMERY OF THE UTILITY MODEL
In order to solve the defects of the prior art, the utility model provides a 485 bus data repeater based on GPRS and Wifi communication has solved the problem among the background art.
In order to achieve the above object, the utility model discloses a technical scheme be:
the utility model provides a 485 bus data repeater based on GPRS and Wifi communication, includes 485 interfaces, GPRS module, Wifi module, singlechip, serial memory, connector, power module, GPRS module, Wifi module, serial memory with the singlechip is connected, the 485 interfaces pass through the 485 chip with the singlechip is connected, the GPRS module is equipped with bluetooth module, 485 connection transient suppression diode (TVS), power module converts outside 220V alternating current into 12V direct current and provides DC power supply output to 485 equipment through the relay.
For further description of the present invention, the GPRS module is SIM 800C.
To further describe the present invention, the Wifi module model is ESP 8266-01.
For further description of the present invention, the serial memory model is AT24C 16.
To the further description of the present invention, the single chip microcomputer model is STC8A8K64S4a 12.
To the utility model discloses further description, 485 chip model is MAX487 or MAX485, 485 interface connection's transient state suppression diode (TVS) model is SMBJ 15A.
To further describe the present invention, it is provided with two sets of 485 interfaces.
Compared with the prior art, the utility model has the advantages that:
on the basis of the 485 communication protocol, a forwarding mechanism is established, and data of the 485 communication protocol is converted into wireless data transmission, so that the problems of short communication distance, insufficient reliability and the like caused by wired transmission are solved.
Drawings
Fig. 1 is a schematic diagram of module connection according to the present invention.
Fig. 2 is a schematic diagram of the single chip microcomputer and the peripheral circuit of the present invention.
Fig. 3 is a schematic diagram of the 485 communication circuit of the present invention.
Fig. 4 is a schematic diagram of the relay control circuit of the present invention.
Fig. 5 is the schematic diagram of the wifi communication circuit of the present invention.
Fig. 6 is the schematic diagram of the GPRS communication circuit and the bluetooth antenna of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings, and it is to be understood that the described embodiments are only some embodiments, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
Example 1, as shown in figures 1-6:
a485 bus data repeater based on GPRS and Wifi communication is composed of a 485 interface, a GPRS module, a Wifi module, a single chip microcomputer, a serial memory and a connector. The 485 interface is designed to be connected with a transient suppression diode (TVS) besides a 485 communication chip to improve the lightning protection and surge resistance of 485 communication, and the power module can convert 220V alternating current into direct current 12V to supply power to each device and output the power to the outside through a relay.
The GPRS module has a Bluetooth communication function.
The GPRS module is SIM 800C.
The model of the Wifi module is ESP 8266-01.
The serial memory model is AT24C 16.
The type of the single chip microcomputer is STC8A8K64S4A 12.
The model of the 485 chip is MAX487 or MAX 485.
The model of a transient suppression diode (TVS) connected with the 485 interface is SMBJ 15A.
The 485 bus data repeater is provided with two groups of 485 interfaces.
The 485 bus data repeater has configurable long-distance GPRS communication and short-distance Wifi and Bluetooth bidirectional transparent data forwarding capacity and Modbus protocol communication capacity.
The utility model discloses in, its mounting means, connected mode or mode of setting are common mechanical system, as long as can realize all can implementing of its beneficial effect.
Although embodiments of the present invention have been shown and described, it is to be understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that those skilled in the art can make changes, modifications, substitutions and alterations to the above embodiments without departing from the spirit and scope of the present invention.
Claims (7)
1. The utility model provides a 485 bus data repeater based on GPRS and Wifi communication, includes 485 interfaces, GPRS module, Wifi module, singlechip, serial memory, connector, power module, its characterized in that, GPRS module, Wifi module, serial memory with the singlechip is connected, the 485 interfaces pass through the 485 chip with the singlechip is connected, the GPRS module is equipped with bluetooth module, 485 interface connection transient suppression diode, power module converts outside 220V alternating current into 12V direct current and provides DC power supply output to 485 equipment through the relay.
2. The 485 bus headend based on GPRS and Wifi communication of claim 1, wherein the GPRS module is SIM 800C.
3. The 485 bus headend based on GPRS and Wifi communication as claimed in claim 1, wherein the model of the Wifi module is ESP 8266-01.
4. The 485 bus headend based on GPRS and Wifi communication as claimed in claim 1 wherein said serial memory is AT24C 16.
5. The 485 bus data repeater based on GPRS and Wifi communication as claimed in claim 1, wherein the single chip microcomputer is STC8A8K64S4A 12.
6. The 485 bus data repeater based on GPRS and Wifi communication as claimed in claim 1, wherein the model of the 485 chip is MAX487 or MAX485, and the model of the transient suppression diode connected to the 485 interface is SMBJ 15A.
7. The 485 bus repeater based on GPRS and Wifi communication as claimed in claim 1, wherein two sets of 485 interfaces are provided.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020679046.1U CN212785393U (en) | 2020-04-28 | 2020-04-28 | 485 bus data repeater based on GPRS and Wifi communication |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020679046.1U CN212785393U (en) | 2020-04-28 | 2020-04-28 | 485 bus data repeater based on GPRS and Wifi communication |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212785393U true CN212785393U (en) | 2021-03-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020679046.1U Active CN212785393U (en) | 2020-04-28 | 2020-04-28 | 485 bus data repeater based on GPRS and Wifi communication |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212785393U (en) |
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2020
- 2020-04-28 CN CN202020679046.1U patent/CN212785393U/en active Active
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