Integrated Automation System for Rail Transit Substation Lines - Control, Monitoring, Linkage, Interlocking, and Locking Functions, Automatic Switching, Current, Voltage, Power, and Electricity Collection - Communication Management Machine

As a professional provider of IoT data acquisition solutions and an expert in industrial IoT data acquisition, the editor of Shanghai Data Acquisition IOT Technology Co., Ltd， (daq-iot) hereby presents the following introduction, and sincerely welcomes discussions and exchanges. Supported Communication Interfaces: CAN, RS485, Mbus, 4–20mA, Profibus, CC-Link, HART, digital I/O, etc. Industrial Protocols: Modbus RTU/TCP, HJ212, IEC104, DLT645, DLMS, IEC61850, MQTT, etc. Mail:export@daq-iot.com

asIoTData AcquisitionsolutionProfessional provider, Shanghai DAQ-IoT Network TechnologyEditor daq iotHere is an introduction to the following content, and we sincerely welcome everyone to discuss and exchange ideas.

As a professional provider of IoT data collection solutions, daq-iot, the data acquisition and IoT editor, will introduce the following content here and sincerely welcome everyone to discuss and communicate.

1、 Basic information

Integrated automation system of substationThe control, monitoring, linkage, interlocking, and locking functions of various equipment in the substation should be realized, including automatic switching, current, voltage, power, and electricity collection functions. The comprehensive automation system equipment of a certain rail transit line has been running for 10 years since its self debugging and launch. During the current operation,Communication Management UnitCommunication interruption faults often occur in all-in-one devices due to delayed operation response, which can result in the inability of the device to monitor and control the status of the power supply system, affecting power supply and driving safety.

This project has a total of 11 traction mixing stations, 14 voltage reduction stations, 4 follow-up stations, and a total of 83 communication management machines and integrated machines for the comprehensive automation system.

2、 Equipment requirements

（1） Communication management machine

adoptIndustrial grade productsConfigure a CPU with a word length of no less than 64 bits, a clock speed of no less than 4G, a memory capacity of no less than 4G, and a capacity for further expansion. Has powerful data processing and storage capabilities, and fast Real-time responsiveness. Using memory with power down data protection, the operating system adoptsReal-time Multi tasking operating system。

The communication controller has a high-performance internal communication network interface for connecting to different device groups（Fiber optic EthernetIn the form of fieldbus, serial port, etc. For the interval units within the station, interface and protocol coordination, conversion, and networking should be carried out before uploading to the control center.

The communication interface standards and protocols should be able to meet the requirements of various interval unit access, with no less than 5 types of interfaces within the station, and each interface module supporting one network interface standard. The network node capacity should not be less than 64, and a certain amount of interface expansion capacity should be reserved.

The communication controller adopts a dual machine redundant configuration. When the main communication controller encounters an abnormality or malfunction, its work is automatically taken over by the hot standby communication controller, and a fault alarm message is issued. After receiving the alarm message, the power dispatch of the control center notifies maintenance personnel to go to the site for maintenance.

The capacity of the communication controller should meet the capacity requirements for remote measurement, remote signaling, electrical measurement, remote control, and remote adjustment of all equipment in the substation.

（2） Integrated machine

The front panel of the control signal screen should be equipped with an integrated device of LCD display and keyboard (industrial computer), usingembedded installationThe Chinese display mode enables human-machine dialogue, completing functions such as internal monitoring, software maintenance, and equipment debugging. The operating status of the internal equipment is displayed graphically. The internal accident and warning information should include the name of the object and the time of occurrence, and no less than 120 pieces of internal accident and warning information should be retained. By operating the keyboard, the controlled equipment inside the station can be operated, including local/remote selection, graphical display of the operation interface, and setting of fixed values.

The above equipment software and Hardware are required to be the latest generation products in the current market, with overall reliability and good compatibility with old equipment, and can seamlessly integrate with existing subway power supply equipment. At the same time, the new system also supports multiple communication Protocol and data formats, making it easy to share and interact with other systems (such as intelligent O&M system, cloud platforms, etc.).