Diesel engine electrical cabinet remote communication control system for rail transit

Abstract

The utility model discloses a rail transit diesel engine electrical cabinet remote communication control system, which comprises a master station PLC, a slave station controller and a communication board card, and is characterized in that the master station PLC is connected with a total network, is used for constructing a master station function of an MODBUS / TCP communication protocol, and can form instruction data and send the instruction data; the communication board card is connected with the master station PLC and the slave station controller through cables and is used for realizing RS485 communication between the master station PLC and the slave station controller; and the slave station controller is used for constructing a slave station function of the MODBUS / TCP communication protocol, receiving instruction data of the master station PLC and reading and writing the data. Through the mode, the remote communication control system of the diesel engine electrical cabinet for the rail transit has a remote communication function through serial communication RS485 output by utilizing an MODBUS / TCP protocol, can monitor various operation numerical values of a diesel engine, realizes remote control operation of the electrical cabinet, realizes an unattended operation function of a diesel engine compartment, and meets the use requirement of an automatic vehicle.

Description

Technical Field

[0001] The utility model relates to the technical field of rail transit communication control, in particular to a remote communication control system for a diesel engine electrical cabinet used in rail transit. Background Art

[0002] At present, most diesel engine electrical cabinets on rail transit use controllers to directly control the start and stop of the diesel engine. Since the diesel engine needs to be controlled by the controller, the operation of the diesel engine must be performed next to the electrical cabinet. For operators, the vibration and noise of the diesel engine during operation are large, the working environment is poor, and long-term duty will affect the operator's concentration and affect the accuracy of operation.

[0003] At the same time, since various values ​​of the diesel engine need to be monitored in a timely manner and manual emergency stop is required in case of faults, this requires the configuration of personnel with the ability to handle various situations and places high demands on operators. Therefore, traditional diesel engine electrical cabinets cannot meet the needs of unattended use during the operation of diesel engine carriages and lack competitiveness. Utility Model Content

[0004] The main technical problem solved by the utility model is to provide a remote communication control system for diesel engine electrical cabinets for rail transit. The MODBUS / TCP protocol is used and the serial communication RS485 output is used. The electrical cabinet has a remote communication function. At the same time, the various operating values ​​of the diesel engine can be monitored through remote communication, and the remote control operation of the electrical cabinet is realized, and the unattended function of the diesel engine compartment is realized, thus meeting the demand for the use of automated vehicles.

[0005] In order to solve the above technical problems, a technical solution adopted by the utility model is: to provide a remote communication control system for diesel engine electrical cabinet for rail transit, including: a master station PLC, a slave station controller and a communication board.

[0006] The master station PLC is connected to the main network and is used to construct the master station function of the MODBUS / TCP communication protocol, and can form command data and send command data to the slave station controller;

[0007] The communication board is connected to the master station PLC and the slave station controller through a cable to realize RS485 communication between the master station PLC and the slave station controller;

[0008] The slave controller is used to construct the slave function of the MODBUS / TCP communication protocol, and can receive instruction data from the master PLC and read and write data.

[0009] In a preferred embodiment of the present invention, the master station PLC, communication board card and slave station controller are all arranged inside the electrical cabinet.

[0010] In a preferred embodiment of the utility model, the master station PLC is provided with an RJ45 network port, the RJ45 network port of the master station PLC is connected to the main network, and the master station PLC is connected to the main network control via the MODBUS / TCP protocol.

[0011] In a preferred embodiment of the utility model, the master station PLC is also provided with an RS485 interface, and the slave station controller is provided with an RS485 serial port. The RS485 interface of the master station PLC is connected to the RS485 serial port of the slave station controller through a communication board to realize RS485 communication.

[0012] In a preferred embodiment of the present invention, the master station PLC adopts Mitsubishi FX5UC series PLC.

[0013] In a preferred embodiment of the present invention, the slave station controller adopts Comai InteliLite4 series controller, and the slave station controller is provided with a backup communication link.

[0014] In a preferred embodiment of the present invention, the communication board is a CM-RS232-485 communication board.

[0015] The beneficial effects of the utility model are as follows: by utilizing the MODBUS / TCP protocol and through the serial communication RS485 output, the electrical cabinet has a remote communication function, and at the same time, through remote communication, various operating values ​​of the diesel engine can be monitored, remote control operation of the electrical cabinet can be realized, the unattended function of the diesel engine compartment can be realized, and the demand for automated vehicle use can be met. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative work, among which:

[0017] Figure 1 This is a structural schematic diagram of a preferred embodiment of the interior of an electrical cabinet of a diesel engine for rail transit of the utility model;

[0018] Figure 2 This is a structural schematic diagram of another preferred embodiment of the interior of the electrical cabinet of a diesel engine for rail transit of the utility model;

[0019] Figure 3 This is a control principle diagram of a preferred embodiment of a remote communication control system for a diesel engine electrical cabinet for rail transit of the utility model; DETAILED DESCRIPTION

[0020] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0021] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] The utility model relates to a preferred embodiment of a remote communication control system of a diesel engine electrical cabinet for rail transportation.

[0023] See also Figures 1 to 3 The rail transit diesel engine electrical cabinet remote communication control system includes: a master station PLC, a slave station controller and a communication board card. The master station PLC, the communication board card and the slave station controller are all arranged inside the electrical cabinet. The communication board card is connected to the master station PLC and the slave station controller through a cable.

[0024] In an exemplary embodiment, the master station PLC adopts Mitsubishi FX5UC series PLC, and the master station PLC is connected to the main network to construct the master station function of the MODBUS / TCP communication protocol. The master station PLC can form instruction data and send the instruction data to the slave station controller.

[0025] In an exemplary embodiment, the communication board is a CM-RS232-485 communication board, and the communication board is used to implement RS485 communication between the master station PLC and the slave station controller.

[0026] In an exemplary embodiment, the slave controller adopts Comai InteliLite4 series controller, and the slave controller is used to construct the slave function of MODBUS / TCP communication protocol. The slave controller can receive command data from the master PLC and read and write data.

[0027] Furthermore, the master station PLC is provided with an RJ45 network port, and the RJ45 network port of the master station PLC can be connected to the external main network through a network cable. The master station PLC realizes remote communication and control with the external Ethernet through the PLC network function configuration.

[0028] Furthermore, the master station PLC is configured using GXWORKS3 programming, and uses the MODBUS / TCP protocol to achieve control connection with the main network.

[0029] Furthermore, the slave controller is provided with a backup communication link and has a dual backup function. The slave controller is provided with an RS485 serial port, and the master PLC is also provided with an RS485 interface. In order to realize the communication function between the master PLC and the slave controller, a communication board is added. The RS485 interface of the master PLC is connected to the RS485 serial port of the slave controller through the communication board to realize RS485 communication.

[0030] Furthermore, the master station PLC configures the MODBUS_RTU setting, and realizes the master station to control the sending of function codes to the slave station through the internal program instruction ADPRW to read and write data.

[0031] The master station PLC of the utility model receives data by MODBUS / TCP protocol and outputs it to the slave station controller through serial communication RS485, so that the electrical cabinet has a remote communication function, can monitor the operating value of the diesel engine, and realize remote control operation of the electrical cabinet.

[0032] The above-mentioned remote communication control system is applied to diesel engines for rail transit. In addition to the direct control function of the diesel engine electrical cabinet, it can also read and write information to the special vehicle through the MODBUS / TCP communication protocol, realize the remote monitoring function, and at the same time realize the unmanned function of the diesel engine compartment through remote control operations, etc., realizing the demand for automated vehicle use.

[0033] The beneficial effects of the utility model of remote communication control system for diesel engine electrical cabinet for rail transit are:

[0034] By using the MODBUS / TCP protocol and serial communication RS485 output, the electrical cabinet has remote communication function. At the same time, it can monitor various operating values ​​of the diesel engine through remote communication, realize remote control operation of the electrical cabinet, realize the unmanned function of the diesel engine compartment, and meet the needs of automated vehicle use.

[0035] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A remote communication control system for diesel engine electrical cabinets for rail transit, characterized in that: include: Master station PLC, slave station controller and communication board, The master station PLC is connected to the main network and is used to construct the master station function of the MODBUS / TCP communication protocol, and can form command data and send command data to the slave station controller; The communication board is connected to the master station PLC and the slave station controller through a cable to realize RS485 communication between the master station PLC and the slave station controller; The slave controller is used to construct the slave function of the MODBUS / TCP communication protocol, and can receive instruction data from the master PLC and read and write data.

2. The remote communication control system for diesel engine electrical cabinet for rail transit according to claim 1 is characterized in that: The master station PLC, communication board card and slave station controller are all arranged inside the electrical cabinet.

3. The remote communication control system for diesel engine electrical cabinet for rail transit according to claim 1 is characterized in that: The master station PLC is provided with an RJ45 network port, the RJ45 network port of the master station PLC is connected to the main network, and the master station PLC is connected to the main network control via the MODBUS / TCP protocol.

4. The remote communication control system for diesel engine electrical cabinet for rail transit according to claim 1, characterized in that: The master station PLC is also provided with an RS485 interface, and the slave station controller is provided with an RS485 serial port. The RS485 interface of the master station PLC is connected with the RS485 serial port of the slave station controller through a communication board to realize RS485 communication.

5. The remote communication control system for diesel engine electrical cabinet for rail transit according to claim 1, characterized in that: The master station PLC adopts Mitsubishi FX5UC series PLC.

6. The remote communication control system for diesel engine electrical cabinet for rail transit according to claim 1, characterized in that: The slave controller adopts Comai InteliLite4 series controller, and the slave controller is provided with a backup communication link.

7. The remote communication control system for diesel engine electrical cabinet for rail transit according to claim 1, characterized in that: The communication board is a CM-RS232-485 communication board.

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