Company Profile

Dongfeng Honda Automotive Parts Co., Ltd. mainly produces key components of Honda series sedan engines and chassis, and is an important component production base for Honda passenger cars in China. The products involve camshafts, connecting rods, crankshafts, cylinder liners, front and rear steering knuckles, fork arms, front and rear brake discs, etc. They are mainly used in the Honda series train models produced by Dongfeng Honda Motor Co., Ltd., GAC Honda Motor Co., Ltd., Honda Motor (China) Co., Ltd., and overseas companies.

Overall project situation

This project is the intelligent monitoring and energy management system project for the new factory building of Dongfeng Honda Automotive Parts Co., Ltd. The project consists of three parts: intelligent power monitoring system, energy management system, and electrical fire monitoring system. These three parts are three relatively independent systems, each with its own independent hardware and running software. The intelligent power monitoring system, energy management system, and electrical fire monitoring system can achieve data sharing through network connection. The intelligent monitoring and energy management system host is installed in the monitoring duty room of the energy station building.

The equipment for this procurement bidding is: software and hardware equipment included in the intelligent power monitoring system; The software and hardware equipment included in the energy management system; The software and hardware equipment included in the electrical fire monitoring system are responsible for monitoring and controlling Connection, installation, and debugging of equipment. When necessary, interface components and measuring devices of the system should be installed on other devices to be monitored, and responsible for the integration with the intelligent monitoring and energy management system.

project scope

This plan includes an intelligent power monitoring system, an electrical fire monitoring system, an intelligent control system for air compressors, and an automatic water supply control system. The system includes power parameter measurement, factory water measurement, factory gas measurement, and natural gas measurement And responsible for the software and hardware equipment for electrical fire monitoring, as well as the connection, installation, and debugging of the equipment to be monitored. The external interface of the system provides real-time data for the energy management system.

Configure according to the drawing situation

Design multifunctional power meters on the circuits of the distribution cabinets in each distribution room that require the installation of power monitoring instruments on the drawingsPD194Z-9HY and integrated protector monitor the current and voltage of a single circuit in real time, and then connect them to the communication management machines in their respective distribution rooms.

After the system is completed, the communication management machines in each distribution room are pulled to the main control room of the main building through optical fibers through photoelectric converters, and all monitoring data is transmitted toSFERE3000 power monitoring system.

Other devices with digital communication interfaces, such as transformer temperature control equipment, DC equipment, analog screens, etc., require data to be uploaded to the backend computer for remote monitoring or control.

Network topology diagram

The overall network acquisition structure of this system is based on the use of optical fibers in each distribution roomTP/IP network communicates with the main control room of the main building to complete centralized data collection and processing. The network is divided into upper layer network and lower layer network. The upper layer network refers to the Ethernet (or fiber optic Ethernet) from each substation to the control center. Industrial grade fiber optic transceivers are used for optoelectronic conversion between optical fibers and various management devices.

The underlying network is the communication between instruments, protection devices, and other equipmentRS485 communication cables are laid using dedicated twisted pair cables. As the communication management machines are configured in their respective sub stations, the RS485 transmission distance is within the sub stations, and there will be no long-distance signal interference or attenuation issues. The on-site equipment layer of the network mainly includes measuring instruments, protective devices, etc., which are installed locally in the corresponding switchgear, have local operation functions, and are not affected by remote computer start stop. This system is divided into three layers from bottom to top: device terminal layer, network communication layer, and system management layer.

implement functionality

It can automatically collect and intelligently manage the energy information of various metering points in the high-voltage distribution room and low-voltage distribution room of the whole plant, so that the distribution network can operate in the best state of safety, reliability, quality, and efficiency, realize remote measurement, control, and management of the distribution network, and meet the needs of electricity safety, energy management, energy conservation and consumption reduction.

By monitoring parameters such as residual current and load current in the circuit, alarm and monitoring of the protected electrical lines can be achieved, and at the same time, they can be uploaded to the fire monitoring system for centralized control and management. When the relevant parameters in the circuit are abnormal, the monitoring equipment emits an audible and visual alarm to indicate the alarm location. At the same time, the on-site detector emits an audible and visual alarm and control signal to remind users to investigate or replace the hidden danger circuit, reducing the risk of fire caused by electrical reasons.