CN204925773U - Cluster Communication Monitoring System of Control Cabinet - Google Patents

Abstract

The utility model relates to a cluster communication monitored control system of switch board, a serial communication port, including a plurality of switch board ends, high in the clouds server and customer end, the switch board end includes PLC communication module, power module and GPRS communication module, power module is connected with PLC communication module and GPRS communication module, PLC communication module is connected with GPRS communication module, the customer end passes through internet connection high in the clouds server, the high in the clouds server is provided with GPRS data transmission module, data processing module and webpage module, GPRS data transmission module passes through the GPRS network and is connected with GPRS communication module, establish with data processing module and GPRS communication module and be connected with socket's mode. The utility model provides a cluster communication monitored control system of switch board adopts GPRS + socket communication mode, and the control is real-time, stable and reliable, easily extension, and construction, management, maintenance cost are low, and the expression form of monitoring information is abundant, real-time.

Description

Cluster Communication Monitoring System of Control Cabinet

technical field

The utility model relates to a communication monitoring technology of a control cabinet, in particular to a cluster communication monitoring system of a control cabinet.

Background technique

my country's rural areas are vast, and tens of millions of tons of domestic sewage are produced every day. However, due to poor economic conditions, lack of mature technology, and insufficient environmental protection awareness, the villages lack sufficient specialized sewage treatment facilities. Domestic sewage is discharged randomly, which aggravates water pollution. affect the environment and public health. Therefore, the treatment of domestic sewage in rural areas is urgent and necessary under the guidance of the policy of "governance of five waters".

However, the existing sewage treatment system is scattered in different locations in various villages and towns. Due to the short start and the relatively long period of practice and exploration, there are the following problems:

1. Due to geographical dispersion, the monitoring of the control cabinet system requires on-site monitoring by personnel, which is time-consuming and laborious;

2. The real-time information of the processing system is not enough, and the displayed content is not much, and some are only image monitoring;

3. The information processing system is stand-alone, sensor-based, not easy to integrate, and not easy to expand;

4. Most of the monitoring systems are collected by SMS, which is expensive and the signal strength is unstable;

5. The reliability and security of the monitoring system are not high enough.

At present, most rural domestic sewage treatment adopts the single-machine single-station operation method, which lacks the monitoring part, which brings inconvenience to the maintenance and inspection of the sewage treatment station, and a few sewage treatment stations with monitoring, the monitoring part has a single function, such as only monitoring the concentration or water quality. Sensor monitoring is not conducive to integration and expansion, and most of them use SMS to communicate. Its advantage is that coding and installation are simple. However, the SMS method is subject to the weather and the signal in rural areas is unstable, there will be packet loss and not real-time problems, and the cost is high.

Contents of the invention

In order to solve the problems existing in the monitoring of control cabinets for rural sewage treatment, the utility model proposes a cluster communication monitoring system for control cabinets that is easy to expand, can realize real-time monitoring, and has low cost.

In order to achieve the above object, the cluster communication monitoring system of the control cabinet provided by the utility model is characterized in that it includes a plurality of control cabinet terminals, cloud servers and clients, and the control cabinet terminal includes a PLC communication module, a power supply module and a GPRS communication module, The power supply module is connected with the PLC communication module and the GPRS communication module, the PLC communication module is connected with the GPRS communication module, the client is connected to the cloud server through the Internet, the cloud server is provided with a GPRS data transmission module, a data processing module and a webpage module, and the GPRS data transmission module passes The GPRS network is connected to the GPRS communication module, and establishes a connection with the data processing module and the GPRS communication module in the form of a socket. The client sends a query command to the data processing module through the web page module, and the data processing module analyzes the received query command according to the web page protocol , send the query command to the GPRS data transmission module in the DTU serial communication protocol format, and the GPRS data transmission module sends the query command to the GPRS communication module at the target control cabinet side, and at the target control cabinet side, the GPRS communication module sends the query command to the PLC communication Module, the feedback data of the query command is fed back from the PLC communication module at the target control cabinet to the GPRS communication module, GPRS data transmission module and data processing module at the target control cabinet. The data processing module responds to the received feedback in accordance with the DTU serial communication protocol format The data is analyzed and sent to the webpage module, and the webpage module displays the feedback data.

The cluster communication monitoring system of the control cabinet provided by the utility model adopts the GPRS+socket communication mode, monitors in real time, is stable and reliable, is easy to expand, has low construction, management and maintenance costs, and has rich and real-time monitoring information.

Description of drawings

Fig. 1 is a schematic diagram of the frame structure of the utility model.

Below in conjunction with accompanying drawing, the utility model is described in further detail.

Detailed ways

Referring to Figure 1, the cluster communication monitoring system of the control cabinet includes multiple control cabinet terminals, cloud servers and clients. The control cabinet side includes a power supply module, a PLC communication module, a GPRS communication module and a camera. The power supply module is composed of power supply module DR-30-24 and its peripheral circuits, one of which is connected to the PLC communication module through wires, and is used to supply power to the PLC communication module in the control cabinet to complete the conversion from 220V to 24V; the other is connected to the PLC communication module through wires. The GPRS communication module is connected to supply power to the GPRS communication module to complete the conversion from 220V to 24V.

The PLC communication module is in the control cabinet, and the communication main control part in the control cabinet is composed of PLC single-chip microcomputer TX2N and its peripheral circuits. The control cabinet of this embodiment is the control cabinet of the sewage treatment station, and the PLC communication module of the control cabinet includes an aerator communication module, a return pump communication module and a lifting pump communication module, and these three modules are all connected with the power supply module and the GPRS communication module , two-way communication with the GPRS communication module, according to the query instructions sent by the GPRS communication module, respectively feed back the operating data of the aerator, return pump and lift pump, including operating parameters and command codes, to the GPRS communication module, and the command codes include switches Automatic operation, 4 operating periods respectively, reading and setting of whether it is valid or not, etc.

The GPRS communication module is connected to the PLC communication module of the control cabinet through the 485 interface, and the camera is connected to the 232 serial port. The DTU of the GPRS communication module uses a dual serial port communication protocol. The GPRS communication module is composed of GPRS module ZHD1X and external circuits. The GPRS communication module connects with the GPRS data transmission module set on the cloud server through the GPRS network and communicates bidirectionally, receives the query command sent by the GPRS data transmission module, sends the query command to the PLC communication module, and receives the PLC communication with the standard modbus communication protocol The feedback data sent by the module is transmitted to the GPRS data transmission module through the GPRS network. The GPRS communication module receives the photographing instruction sent by the GPRS data transmission module, and sends the photographing instruction to the camera, and the camera executes the photographing instruction to take pictures, and sends the photos to the GPRS communication module, and the GPRS communication module transmits the photos to the GPRS data transmission module through the GPRS network .

Although only one control cabinet terminal is shown in Figure 1, the cluster communication monitoring system of the control cabinet of the present invention includes multiple control cabinet terminals, and the PLC communication module of the control cabinet to be monitored is equipped with a power supply module and a GPRS communication module , can constitute a control cabinet end. Each control cabinet end is connected with the GPRS data transmission module set on the cloud server by its GPRS communication module through the GPRS network. In this way, multiple control cabinets scattered in various places can be clustered together to realize monitoring.

The cloud server is provided with a GPRS data transmission module, a data processing module and a webpage module. The GPRS data transmission module establishes a connection with the data processing module and the GPRS communication module in the form of a socket, and one end listens to the TCP connection request from the DTU of the GPRS communication module at the control cabinet side scattered in various places with a multi-threaded socket, and communicates with the GPRS communication module The DTU establishes a TCP connection, and the other end connects with the data processing module through the IP address and port number. The GPRS data transmission module receives the query command or camera command from the data processing module, encapsulates the command according to the DTU serial communication protocol, and immediately sends it to the GPRS communication module at the target control cabinet through the GPRS network. Because there are multiple control cabinets, and the query command or photographing command only involves one, two or more, or all of the control cabinets, the target control cabinet is only involved in the query command or photographing command. control cabinet side. For example, if the query command is to query the sewage treatment situation at the No. 1 control cabinet, then the No. 1 control cabinet is the target control cabinet, and the query command is only sent to the GPRS communication module at the No. 1 control cabinet. After the GPRS data transmission module receives the feedback data fed back from the GPRS communication module at the target control cabinet side, it analyzes and encapsulates the data and sends it to the data processing module.

Since the number of bytes of the feedback data from the PLC communication module is small and the transmission time is short, the GPRS data transmission module can receive a complete data packet once. The number of bytes of picture data from the camera ranges from 4K to more than 10,000, and the data volume is very large, and the maximum number of bytes transmitted by the DTU of the GPRS communication module is 1K. Therefore, the GPRS data transmission module reads the picture data multiple times by means of subcontracting. After completing the transmission of all image bytes, it is integrated and sent to the data processing module at one time. The GPRS data transmission module protects its data by checking the CRC check code. The command code uses a CRC check code. After the data transmission module receives the command code, it will first check the CRC code. If the verification is successful, continue to perform subsequent processing. If it is unsuccessful, the command code will be discarded.

The data processing module monitors in real time and receives the query command or camera command sent from the web module according to the web page format, and analyzes the query command or camera command according to the web page protocol, converts it into a command code of the DTU serial communication protocol, and communicates with the DTU serial port The protocol format sends the query command or the camera command to the GPRS data transmission module. The data processing module receives the feedback data or photos transmitted by the GPRS data transmission module in real time, analyzes the feedback data or photos sent by the GPRS data transmission module according to the DTU serial communication protocol format, and translates them into final results. After the analysis is completed Quickly pass the text to the web page module.

The web page module implements fast communication with the data processing module in the form of a file in accordance with the web page protocol format, sends query instructions or photo taking instructions to the data processing module, receives feedback data or photos sent from the data processing module, and stores the data in mysql. The information sent by the data processing module is displayed on the web page. On the web page, the control cabinet general diagram, sub-diagram, list of all parameters, curves, historical records, statistical curves, alarm records, operation records, etc. can be displayed. The webpage module conducts humanized art design for the web surface, and performs account design and account security management for the control cabinet. Different accounts are set for different sewage treatment control cabinets. One account can only govern several sewage treatment controls within its own scope. cabinet or a single sewage treatment control cabinet.

The client connects to the cloud server through the Internet, and after remotely logging in to the cloud server, performs query and photographing operations on the webpage module, and the webpage module sends a query command or a photographing command to the data processing module. Clients can be desktop computers, laptops, IPADs, mobile phones, etc. that can be connected to the Internet.

The utility model adopts the GPRS+socket communication method to increase the real-time performance, stability and reliability of the communication content; the layered design of this method is easy to expand in each layered part. For the new control cabinet, only need to connect the GPRS communication module, configure the address, and add a site in the web module to complete the monitoring, operation and maintenance of the new control cabinet; the monitoring system is stable, reliable, real-time, and low in cost2; real-time on the web page with rich performance The state of the form control cabinet. The utility model has rich monitoring information, real-time communication, strong expansibility, and comprehensive and reliable control, and is especially suitable for monitoring control cabinets in different fields such as sewage treatment stations, factory areas, and power stations.

Claims (3)

1. the trunking communication supervisory system of switch board, it is characterized in that, comprise multiple switch board end, cloud server and client, switch board end comprises PLC communication module, supply module and GPRS communication module, supply module is connected with PLC communication module and GPRS communication module, plc communication module is connected with GPRS communication module, client connects cloud server by internet, cloud server is provided with GPRS data transport module, data processing module and Web page module, GPRS data transport module is connected with GPRS communication module by GPRS network, connect with the mode of socket and data processing module and GPRS communication module, client sends query statement by Web page module to data processing module, data processing module is resolved according to web page protocol the query statement received, with DTU serial communication protocol form, query statement is sent to GPRS data transport module, GPRS data transport module sends to the GPRS communication module of target control cabinet end query statement, at target control cabinet end, GPRS communication module sends to plc communication module query statement, the feedback data of query statement is fed back to successively to the GPRS communication module of target control cabinet end from the plc communication module of target control cabinet end, GPRS data transport module and data processing module, data processing module to be resolved the feedback data received according to DTU serial communication protocol form and is sent to Web page module, Web page module display feedback data.

2. the trunking communication supervisory system of switch board according to claim 1, it is characterized in that, described switch board end is provided with camera, camera connects GPRS communication module by 232 serial ports, client sends photographing instruction by Web page module to data processing module, data processing module is resolved according to web page protocol the photographing instruction received, with DTU serial communication protocol form, photographing instruction is sent to GPRS data transport module, GPRS data transport module sends to the GPRS communication module of target control cabinet end photographing instruction, at target control cabinet end, GPRS communication module sends to camera photographing instruction, camera performs photographing instruction and takes pictures, photo feeds back to the GPRS communication module of target control cabinet end successively from the camera of target control cabinet end, GPRS data transport module and data processing module, data processing module to be resolved the photo received according to DTU serial communication protocol form and is sent to Web page module, Web page module display photo.

3. the trunking communication supervisory system of switch board according to claim 2, it is characterized in that, described PLC communication module comprises aerator communication module, reflux pump communication module and lift pump communication module, and these three modules are all connected with supply module and GPRS communication module.