CN210605442U - Based on special LORA wireless communication control system of nuclear power station PLC - Google Patents
Based on special LORA wireless communication control system of nuclear power station PLC Download PDFInfo
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- CN210605442U CN210605442U CN201921493637.3U CN201921493637U CN210605442U CN 210605442 U CN210605442 U CN 210605442U CN 201921493637 U CN201921493637 U CN 201921493637U CN 210605442 U CN210605442 U CN 210605442U
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Abstract
The utility model provides a based on special LORA wireless communication control system of nuclear power station PLC, including PLC data acquisition end, terminal control ware, gateway controller and remote server module. The PLC data acquisition end is connected with the gateway controller through a cable; the gateway controller is respectively connected with the terminal controller and the remote server module in a bidirectional transmission way through an LORA wireless communication mode. The utility model discloses a communication monitored control system based on PLC and long-range wireless data transfer has realized being connected to the improvement of wireless frequency modulation communication technology from optic fibre hard wiring, very big reduction fault rate and maintenance rate. And the data monitoring is timely, the performance is reliable, and the operation is convenient.
Description
Technical Field
The utility model belongs to the technical field of signal acquisition and control, concretely relates to based on special LORA wireless communication control system of nuclear power station PLC.
Background
The Fuqing Beilin reservoir is the only fresh water supply source in the Fuqing nuclear power station main plant area, and the fresh water monitoring and data acquisition control system consists of Siemens 400 series PLC, an electromagnetic flowmeter, a motor, a water pump and other equipment at present, and realizes the data monitoring of the flow, temperature, pressure, water level and the like of the fresh water. Meanwhile, monitored analog quantity signals (4-20 mA) such as an electromagnetic flowmeter and the like are transmitted to a PLC control system of a fresh water plant in a main plant area through an optical fiber, a switch and a TCP/IP protocol, so that the function of remote synchronous monitoring is realized. Therefore, the fresh water monitoring and collecting system of the Beilin reservoir plays a significant role in Fuqing nuclear power stations, and the requirements on data are accurate and stable to collect to a monitoring center.
The distance between straight lines of the Fuqing Beilin reservoir and a main factory area exceeds 10KM, an analog quantity signal (4-20 mA) of an original electromagnetic flowmeter is transmitted by adopting an optical fiber, the optical fiber is laid in villages, roads, farmlands, construction sites and the like, the terrain is complex, the optical fiber is broken for many times, signal transmission is interrupted, the remote monitoring function is almost lost, and the data monitoring and analysis of the Beilin reservoir by a monitoring center are greatly influenced.
Therefore, there is an urgent need to develop an improved wireless communication control system to reduce the failure rate and maintenance rate.
Disclosure of Invention
The utility model aims at providing a based on special LORA wireless communication control system of nuclear power station PLC realizes wireless frequency modulation communication technique.
The utility model adopts the technical proposal that:
a special LORA wireless communication control system based on a nuclear power station PLC comprises a PLC data acquisition terminal, a terminal controller, a gateway controller and a remote server module. The PLC data acquisition end is connected with the gateway controller through a cable; the gateway controller is respectively connected with the terminal controller and the remote server module in a bidirectional transmission way through an LORA wireless communication mode.
The gateway controller is mainly used for managing the structure of the whole wireless network and coordinating the communication process of terminal nodes in the network; the terminal controller is responsible for receiving and processing the data request sent by the terminal node and generating data interaction with the remote server module; the remote server module is mainly used for responding to the http request sent by the gateway controller and returning the corresponding request result to the gateway controller.
The PLC data acquisition end adopts a PLC of Siemens 400 series 6ES7417-4XT07-0AB0 CPU, and is provided with an RS232 standard serial port.
The gateway controller comprises a core data processing module, a network module, a communication interface and a wireless module, wherein the PLC data acquisition end is connected with the core data processing module through a cable, and the core data processing module is sequentially in bidirectional electric connection with the network module, the communication interface and the wireless module.
The terminal controller is a two-stage computer control system consisting of an industrial control computer IPC-610L and a Siemens PLC. The terminal controller comprises a processing module, a wireless module and a communication interface. Wherein the processing module is electrically connected with the wireless module and the communication interface in a bidirectional way in sequence.
The wireless modules of the gateway controller and the terminal controller both adopt an open ISM frequency band with the center frequency of 433 MHz. This frequency is the fundamental frequency of the LORA protocol.
The utility model discloses the beneficial effect who gains does:
1. by adopting a communication monitoring system based on PLC and remote wireless data transmission, the improvement of the technology of connecting the optical fiber hard wiring to the wireless frequency modulation communication is realized, and the failure rate and the maintenance rate are greatly reduced;
2. the data monitoring is timely, the performance is reliable, the operation is convenient, and the unattended function is realized;
3. the maintenance workload is reduced, the maintenance time is greatly shortened, and the cost of an enterprise is saved;
4. the safety, reliability and economy of the nuclear power unit are improved.
Drawings
Fig. 1 is a schematic structural diagram of a special LORA wireless communication control system based on a nuclear power plant PLC.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.
As shown in FIG. 1, the utility model provides a based on special LORA wireless communication control system of nuclear power station PLC.
A special LORA wireless communication control system based on a nuclear power station PLC comprises a PLC data acquisition terminal, a terminal controller, a gateway controller and a remote server module. The PLC data acquisition end is connected with the gateway controller through a cable; the gateway controller is respectively connected with the terminal controller and the remote server module in a bidirectional transmission way through an LORA wireless communication mode.
The gateway controller is mainly used for managing the structure of the whole wireless network and coordinating the communication process of terminal nodes in the network; the terminal controller is responsible for receiving and processing the data request sent by the terminal node and generating data interaction with the remote server module; the remote server module is mainly used for responding to the http request sent by the gateway controller and returning the corresponding request result to the gateway controller.
The PLC data acquisition end adopts a PLC of Siemens 400 series 6ES7417-4XT07-0AB0 CPU, and is provided with an RS232 standard serial port. And the data communication is realized by connecting with a local upper computer.
The gateway controller comprises a core data processing module, a network module, a communication interface and a wireless module, wherein the PLC data acquisition end is connected with the core data processing module through a cable, and the core data processing module is sequentially in bidirectional electric connection with the network module, the communication interface and the wireless module.
The terminal controller is a two-stage computer control system consisting of an industrial control computer IPC-610L and a Siemens PLC, is responsible for finishing monitoring field data and finishes connection of lines through a wireless module. The terminal controller comprises a processing module, a wireless module and a communication interface. Wherein the processing module is electrically connected with the wireless module and the communication interface in a bidirectional way in sequence.
The wireless modules of the gateway controller and the terminal controller both adopt an open ISM frequency band with the center frequency of 433 MHz. This frequency is the fundamental frequency of the LORA protocol.
The lower computer is connected with the PLC through an RS232 standard serial port of a PLC data acquisition end, and the configuration of the PLC is completed according to process requirements, wherein the PLC mainly comprises 6 analog quantity input signals. And then, the monitoring pictures of the upper computer and the lower computer are developed by using STEP7 configuration software and WINCC.
The PLC is connected with the network server module through a communication line to directly acquire data. The WINCC software is installed on the network server module, and the WINCC engineering on the terminal controller is directly copied to the remote server module to directly read and write data, so that the workload is greatly reduced.
The remote server module and the terminal controller are synchronized with the picture display, which is the key for realizing remote monitoring of the system.
The LORA wireless communication control system special for the nuclear power station PLC uses STEP7 and WINCC to write programs and configuration interfaces, Siemens 400 series PLC is used for data real-time acquisition and analysis, real-time data and equipment states are displayed on a local PC through WINCC configuration pictures, and real-time transmission of field data is transmitted to the PC of a monitoring center within 10KM by means of a newly established wireless frequency modulation communication technology. An upper computer and a signal acquisition device are required to be configured locally, and the upper computer is required to be configured remotely. Remote monitoring is realized through a wireless communication mode. And upper-layer decisions can be issued, so that an unattended function is realized.
The utility model discloses the beneficial effect who gains does:
1. by adopting a communication monitoring system based on PLC and remote wireless data transmission, the improvement of the technology of connecting the optical fiber hard wiring to the wireless frequency modulation communication is realized, and the failure rate and the maintenance rate are greatly reduced;
2. the data monitoring is timely, the performance is reliable, the operation is convenient, and the unattended function is realized;
3. the maintenance workload is reduced, the maintenance time is greatly shortened, and the cost of an enterprise is saved;
4. the safety, reliability and economy of the nuclear power unit are improved.
Claims (8)
1. The utility model provides a special LORA wireless communication control system based on nuclear power station PLC which characterized in that: the system comprises a PLC data acquisition terminal, a terminal controller, a gateway controller and a remote server module; the PLC data acquisition end is connected with the gateway controller through a cable; the gateway controller is respectively connected with the terminal controller and the remote server module in a bidirectional transmission way through an LORA wireless communication mode.
2. The special LORA wireless communication control system based on nuclear power plant PLC as claimed in claim 1, characterized in that: the PLC data acquisition end adopts a PLC of Siemens 400 series 6ES7417-4XT07-0AB0 CPU.
3. The special LORA wireless communication control system based on nuclear power plant PLC as claimed in claim 1, characterized in that: the PLC data acquisition end is provided with an RS232 standard serial port.
4. The special LORA wireless communication control system based on nuclear power plant PLC as claimed in claim 1, characterized in that: the gateway controller comprises a core data processing module, a network module, a communication interface and a wireless module, wherein the PLC data acquisition end is connected with the core data processing module through a cable, and the core data processing module is sequentially in bidirectional electric connection with the network module, the communication interface and the wireless module.
5. The special LORA wireless communication control system based on nuclear power plant PLC as claimed in claim 1, characterized in that: the terminal controller is a two-stage computer control system consisting of an industrial control computer IPC-610L and a Siemens PLC.
6. The special LORA wireless communication control system based on nuclear power plant PLC as claimed in claim 5, characterized in that: the terminal controller comprises a processing module, a wireless module and a communication interface, wherein the processing module is sequentially and bidirectionally electrically connected with the wireless module and the communication interface.
7. The special LORA wireless communication control system based on nuclear power plant PLC as claimed in claim 4, characterized in that: and the wireless module of the gateway controller adopts an open ISM frequency band with the center frequency of 433 MHz.
8. The special LORA wireless communication control system based on nuclear power plant PLC as claimed in claim 6, characterized in that: and the wireless module of the terminal controller adopts an open ISM frequency band with the center frequency of 433 MHz.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201921493637.3U CN210605442U (en) | 2019-09-09 | 2019-09-09 | Based on special LORA wireless communication control system of nuclear power station PLC |
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| CN201921493637.3U CN210605442U (en) | 2019-09-09 | 2019-09-09 | Based on special LORA wireless communication control system of nuclear power station PLC |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113903482A (en) * | 2021-09-30 | 2022-01-07 | 陕西赛普瑞电气有限公司 | Operation display device for nuclear power station |
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2019
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113903482A (en) * | 2021-09-30 | 2022-01-07 | 陕西赛普瑞电气有限公司 | Operation display device for nuclear power station |
| CN113903482B (en) * | 2021-09-30 | 2023-10-13 | 陕西赛普瑞电气有限公司 | Operation display device for nuclear power station |
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