CN207380507U - Wireless modbus concentrators based on LoRa technologies - Google Patents
Wireless modbus concentrators based on LoRa technologies Download PDFInfo
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- CN207380507U CN207380507U CN201721469341.9U CN201721469341U CN207380507U CN 207380507 U CN207380507 U CN 207380507U CN 201721469341 U CN201721469341 U CN 201721469341U CN 207380507 U CN207380507 U CN 207380507U
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Abstract
The utility model discloses a kind of wireless modbus concentrators based on LoRa technologies.RS485 communication modules and RS232 communication modules in the utility model are connected by serial ports with MCU processing modules, ensure that subscriber's main station or test system carry out two-way interactive with concentrator information；Lora radio-frequency modules are interconnected by SPI interface and MCU processing modules, are collected the environmental information that terminal slave device collects in real time, and are given MCU processing modules data feedback；Or by Lora radio-frequency modules it is remote under issue a command to terminal slave device；The utility model concentrator can be with multiple wireless slave unit wireless communications so that user can manage multiple wireless slave units concentratedly；Tradition is not only eliminated by the complicated problem of 485 bus cables wiring, but also substantially increases communication efficiency.
Description
Technical field
The utility model belongs to industrial internet of things field, relate to it is a kind of substituted using Lora technologies it is traditional
RS485 buses, and pass through the concentrator devices of data interaction between Modbus protocol realizations and subscriber's main station.
Background technology
With the maturation of entire Internet of Things ecological environment, the application demand of industrial Internet of Things starts gradually strongly, such as：It is raw
Production, the efficient demand of logistics；The monitoring demand of real-time production data and device data；More accurate production tracing demand；
Intelligent predicting and early warning demand etc., the development of China's industry Internet of Things are gradually turned from past Government-Leading to application demand
Become.
In most of industry spots, it is necessary to monitor the working environment at scene and the operating condition of equipment in real time, this is just needed
Central controller connects the information gatherings such as substantial amounts of terminal slave device, such as water meter, ammeter, sensor node by wired mode
Equipment.This Terminal Type slave device generally all possesses Modbus protocol communication functions, but since species is various, quantity is larger, wiring
Intricate, this will make the programming of central controller and setting become particularly difficult.And the interface resource of central controller
Limited, all terminal slave devices require connect to a communication interface, may if a terminal device interface breaks down
Whole network is caused to paralyse.At present, also occurred the concentrator for supporting Modbus agreements in the market, but many concentrators do not have
Realize central controller and the wireless communication of terminal slave device, wiring is still still intricate, to entire engineering construction, brings
Great challenge.
The content of the invention
The purpose of this utility model is directed to the deficiency of existing concentrator product, it is proposed that a kind of based on the wireless of LoRa technologies
Modbus concentrators realize that central controller can carry out telecommunication with multiple wireless slave units, and real-time is high, leads to
Communication distance is remote, easy to use.
The technical solution adopted in the utility model is：
The utility model includes MCU processing modules, RS485 communication modules, RS232 communication modules, Lora radio-frequency modules, presses
Key reseting module, LED module and power module.
The RS485 communication modules and RS232 communication modules is connected by serial ports with MCU processing modules, ensures user
Host or test system carry out two-way interactive with concentrator information.
The Lora radio-frequency modules are interconnected by SPI interface and MCU processing modules, collect the acquisition of terminal slave device in real time
The environmental information arrived, and give MCU processing modules data feedback；Or by Lora radio-frequency modules it is remote under issue a command to terminal
Slave device.
The button reseting module is connected by I/O port with MCU module, is set for quickly recovering to appear on the scene.
The LED module includes power supply indicator and concentrator communications status indicator light, is connected with MCU module.
The power module is mainly that each module provides stable supply voltage.
Data that the MCU processing module Processing Interfaces summarize and it is transmitted to other required interface moulds
Block.
Further, further include USB and turn serial port module, USB turns serial port module and is connected by serial ports with MCU module, for pair
Concentrator carries out parameter configuration.
The beneficial effects of the utility model：The utility model utilizes remote Lora technologies, low-power consumption, the spy of low cost
Property, it can realize the wireless communication of concentrator and multiple wireless slave units so that subscriber's main station can manage concentratedly multiple wireless
Slave device；Tradition is not only eliminated by the complicated problem of 485 bus cables wiring, but also substantially increases communication efficiency.
And the concentrator has good versatility, and interface flexible is convenient, easily controllable, also with good maintainable and extension
Property, preferable economy is easily manufactured, at low cost.
Description of the drawings
Fig. 1 is the concrete application structure chart of Modbus concentrators；
Fig. 2 is the internal frame diagram of Modbus concentrators；
Fig. 3 is MCU processing module circuit diagrams；
Fig. 4 is the circuit diagram of RS485 modules；
Fig. 5 is the circuit diagram of RS232 modules；
Fig. 6 is the circuit diagram of radio-frequency module；
Fig. 7 is the schematic diagram that USB turns serial port module；
Fig. 8 is the schematic diagram of button reseting module；
Fig. 9 is the schematic diagram of LED module；
Figure 10 is the schematic diagram of power module.
Specific embodiment
In order to which the purpose of this utility model, technical solution and advantage is more clearly understood, below in conjunction with attached drawing and example
The utility model is described in further detail.
The concrete application structure chart of the Modbus concentrators based on Lora technologies is first discussed in detail below.Concrete application knot
Structure frame diagram is as shown in Figure 1, when subscriber's main station issues the instruction for reading acquisition information to concentrator by RS232 or RS485
AP, the central controller in concentrator can will be instructed by SPI communication give Lora radio-frequency modules, and radio-frequency module passes through wireless privately owned
Consultation issues the Lora radio-frequency modules of terminal slave device ED1, ED2, ED3 by instructing, and the central controller of terminal slave device connects
After being instructed, instruction is issued to by each and every one information collecting device by RS232 or RS485.Then by reverse link number
According to feeding back to test system or subscriber's main station.Ensure that host or test system can obtain following each information gathering in real time with this
The relevant information of equipment can also issue control command to each information collecting device.
Fig. 2 is the internal frame diagram of the Modbus concentrators based on Lora technologies described in the utility model, including MCU processing
Module 1, RS485 communication modules 2, RS232 communication modules 3, Lora radio-frequency modules 4, USB turn serial port module 5, button reseting module
6th, LED module 7, power module 8.The power module 8 communicates respectively with MCU processing modules 1, RS485 communication modules 2, RS232
Module 3, Lora radio-frequency modules 4, USB turn serial port module 5, button reseting module 6, LED module 7 and are connected；Power module includes electricity
Source interface 8a, 8~28V-5V power module 8b and 5V-3.3V power modules 8c；The RS485 modules 2, RS232 modules 3, USB
Turn serial port module 5 respectively with MCU module 1 by serial ports to be connected；Lora radio-frequency modules 4 are connected by SPI interface with MCU module 1；
LED module 7, button reseting module 6 are connected respectively with the common I/O port of MCU module 1.The MCU processing module Processing Interfaces
The data that summarize and it is transmitted to other required interface modules.The RS485 communication modules and RS232 communication moulds
Block is connected by serial ports with MCU module, ensures that subscriber's main station or test system can be with two-way interactives with concentrator information.
The Lora radio-frequency modules are interconnected by SPI interface and MCU module, can collect the environment that terminal slave device collects in real time
Information, and give MCU data feedback；Can also by Lora radio-frequency modules it is remote under issue a command to terminal slave device.It is described
USB turn serial port module and be connected by serial ports with MCU module, this concentrator can so be matched somebody with somebody by host computer
Relevant parameter is put, such as：RS232 Configuration of baud rate, RS485 Configuration of baud rate, SSID settings, key setting etc. parameter.Institute
The button reseting module stated is connected by common I/O port with MCU module, and client can be facilitated quickly to recover the setting that appears on the scene.Described
LED module includes power supply indicator and concentrator communications status indicator light.
Fig. 3 be 1 circuit diagram of MCU processing modules, MCU control module mainly include master chip STM32F103RCT6 and
Crystal oscillating circuit.STM32F103RCT6 has the processing speed of up to 72M so that the concentrator has very strong computing capability；With
And possess the SRAM of the Flash ROM and 64KB of 512KB, provide the program's memory space of bigger and operation sky for whole system
Between.In addition STM32F103R additionally provides 5 serial communication interface USART and 3 SPI communication mouths, may have access to connection Lora radio frequencies
Module, RS485 modules, RS232 modules, USB turn serial port module, and are written and read operation to each module.
Fig. 4 is the circuit diagram of the RS485 modules 2, wherein the SP485EE of the Xi Baisi companies selected is as control
Device, the communication being mainly responsible between test main frame and concentrator directly directly can also hang slave by 485 bus cables and set
It is standby, enhance the practicality.
Fig. 5 is the circuit diagram of the RS232 modules 3, is mainly also responsible for logical between test main frame and concentrator
Letter.
Fig. 6 be the radio-frequency module 4 circuit diagram, Lora radio-frequency modules directly select peace letter can SX1278
Lora spread spectrum radio modules, use LoraTMSpread-spectrum modulation technique, the spectral range of 410Mhz~525Mhz, the hair of+18dBm
Power is penetrated, down to the sensitivity of -148dBm, it is sufficient to meet the requirement of telecommunication；And it carries the inspection of automated radio frequency signal
It surveys, CAD patterns and super high-speed A FC, these all bring reliable guarantee and safety for the detection and transmission of radio frequency signal；
The radio-frequency module is responsible for concentrator and wireless slave unit between the two remote as concentrator and the bridge of wireless slave unit
Information transmits and the utility model concentrator core.
Fig. 7 is that USB turns the schematic diagram of serial port module 5, host computer can be configured by this serial ports in concentrator RS232 and
The relevant parameter of RS485, such as：The baud rate of RS485 and RS232, SSID are set, key is set etc..
Fig. 8 is the schematic diagram of button reseting module 6, can be extensive for concentrator at any time mainly when running into some unexpected situations
Multiple default setting.
Fig. 9 is the schematic diagram of LED module 7, including power supply indicator, LINK lamps, TX lamps and RX lamps；As long as power supply indicator
Power supply is normally just always on, and LINK lamps are just to be always on when networking；Serial ports send data when TX lamps it is bright, serial ports pick data when
It is bright to wait RX lamps.
Figure 10 is the schematic diagram of power module 8, including power interface 8a, 8~28V-5V power modules 8b and 5V-3.3V electricity
Source module 8c, the power interface are connected with any adapter of external 8~28V, and 8~28V-5V power modules 8b connects with power supply
Mouth 8a is connected, and 5V-3.3V power modules 8c is connected with 8~28V-5V power modules 8b.8~28V-5V power modules 8 provide 5V
Output voltage turn serial port module 5 to RS485 modules 2 and USB and power, remaining remaining module is by 5V-3.3V power modules
8c powers.In Power Management Design, power input area and digital circuit region are isolated with carrying out with 0 Ohmic resistance, can effectively be limited
Loop current processed, makes noise be inhibited.
So far, realize a set of wireless proprietary protocol based on Lora technologies and turn Modbus agreement concentrator designing schemes.
It is core that the program, which is based on Lora radio-frequency techniques and STM32F103RCT6 processors, is connect using RS485 or RS232 for data
Mouthful, it preferably solves in traditional RS485 communication, 485 bus cables are the adverse circumstances difficult arrangement the problem of.
Claims (2)
1. the wireless modbus concentrators based on LoRa technologies, including MCU processing modules, RS485 communication modules, RS232 communications
Module, Lora radio-frequency modules, button reseting module, LED module and power module, it is characterised in that：
The RS485 communication modules and RS232 communication modules is connected by serial ports with MCU processing modules, ensures subscriber's main station
Or test system carries out two-way interactive with concentrator information；
The Lora radio-frequency modules are interconnected by SPI interface and MCU processing modules, collect what terminal slave device collected in real time
Environmental information, and give MCU processing modules data feedback；Or by Lora radio-frequency modules it is remote under issue a command to terminal from setting
It is standby；
The button reseting module is connected by I/O port with MCU module, is set for quickly recovering to appear on the scene；
The LED module includes power supply indicator and concentrator communications status indicator light, is connected with MCU module；
The power module provides stable supply voltage for each module；
Data that the MCU processing module Processing Interfaces summarize and it is transmitted to required module.
2. the wireless modbus concentrators according to claim 1 based on LoRa technologies, it is characterised in that：Further include USB
Turn serial port module, USB turns serial port module and is connected by serial ports with MCU module, for carrying out parameter configuration to concentrator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721469341.9U CN207380507U (en) | 2017-11-07 | 2017-11-07 | Wireless modbus concentrators based on LoRa technologies |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721469341.9U CN207380507U (en) | 2017-11-07 | 2017-11-07 | Wireless modbus concentrators based on LoRa technologies |
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| Publication Number | Publication Date |
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| CN207380507U true CN207380507U (en) | 2018-05-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721469341.9U Expired - Fee Related CN207380507U (en) | 2017-11-07 | 2017-11-07 | Wireless modbus concentrators based on LoRa technologies |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109066998A (en) * | 2018-09-26 | 2018-12-21 | 电子科技大学 | A kind of power distribution cabinet intelligent communications terminal |
| CN109118742A (en) * | 2018-09-30 | 2019-01-01 | 四川安睿环境工程有限公司 | A kind of Internet of Things energy consumption data acquisition device based on LoRa communication |
| CN109243094A (en) * | 2018-09-27 | 2019-01-18 | 深圳市丰巢科技有限公司 | A kind of express delivery cabinet based on Lora wireless transmission |
| CN111371670A (en) * | 2020-03-10 | 2020-07-03 | 贵州远诚自控科技有限公司 | Based on industrial computer and VPN link up device |
| CN112037493A (en) * | 2020-08-01 | 2020-12-04 | 山东恒远智能科技有限公司 | DI switching value acquisition system and method based on wireless Lora |
| CN113162833A (en) * | 2021-04-15 | 2021-07-23 | 杜吉鹏 | Centralized control system based on ModBus communication and wireless RS485 communication |
| CN113347586A (en) * | 2021-05-30 | 2021-09-03 | 合肥工业大学 | Distributed multi-terminal communication system based on Lora and industrial Internet of things |
| CN113391653A (en) * | 2021-05-30 | 2021-09-14 | 合肥工业大学 | Distributed multifunctional gas mass flow controller based on single chip microcomputer |
| CN117061274A (en) * | 2023-10-12 | 2023-11-14 | 天津卓朗科技发展有限公司 | LORA remote control method and device for Ethernet communication |
-
2017
- 2017-11-07 CN CN201721469341.9U patent/CN207380507U/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109066998A (en) * | 2018-09-26 | 2018-12-21 | 电子科技大学 | A kind of power distribution cabinet intelligent communications terminal |
| CN109243094A (en) * | 2018-09-27 | 2019-01-18 | 深圳市丰巢科技有限公司 | A kind of express delivery cabinet based on Lora wireless transmission |
| CN109118742A (en) * | 2018-09-30 | 2019-01-01 | 四川安睿环境工程有限公司 | A kind of Internet of Things energy consumption data acquisition device based on LoRa communication |
| CN111371670A (en) * | 2020-03-10 | 2020-07-03 | 贵州远诚自控科技有限公司 | Based on industrial computer and VPN link up device |
| CN112037493A (en) * | 2020-08-01 | 2020-12-04 | 山东恒远智能科技有限公司 | DI switching value acquisition system and method based on wireless Lora |
| CN113162833A (en) * | 2021-04-15 | 2021-07-23 | 杜吉鹏 | Centralized control system based on ModBus communication and wireless RS485 communication |
| CN113347586A (en) * | 2021-05-30 | 2021-09-03 | 合肥工业大学 | Distributed multi-terminal communication system based on Lora and industrial Internet of things |
| CN113391653A (en) * | 2021-05-30 | 2021-09-14 | 合肥工业大学 | Distributed multifunctional gas mass flow controller based on single chip microcomputer |
| CN117061274A (en) * | 2023-10-12 | 2023-11-14 | 天津卓朗科技发展有限公司 | LORA remote control method and device for Ethernet communication |
| CN117061274B (en) * | 2023-10-12 | 2024-01-12 | 天津卓朗科技发展有限公司 | LORA remote control method and device for Ethernet communication |
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Legal Events
| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180518 Termination date: 20211107 |