Wireless substation on-line monitoring system solution

1, the advantages of wireless substation on-line monitoring system

Conventional temperature measurement methods need manual intervention, either high cost, or there is a security risk, or there are limitations, and the Power wireless detection system real-time, cost-effective, safe and reliable, the use of wireless online measurement of high-pressure environment has become a trend. For such a complex physical structure, the measurement point distribution is not centralized, artificial or not easy to access the environment, limiting the usual use of wired data transmission method, so that the wireless acquisition on-line monitoring method has the superiority.

2. System Design

2.1. Front-end device monitoring

Mainly temperature sensor, battery sensor, security video surveillance and infrared monitoring, front-end equipment is mainly the system front-end acquisition and monitoring equipment. The front-end substation temperature detection, power collection and security video data collection, independent composition of a monitoring environment.

2.2. Transport Layer

Through the 3g/4g router, with the multi-channel AD acquisition analog interface data, real-time data reporting and transmission, and through the network interface or DVR equipment, the front-end video monitoring through the wireless carrier network implementation upload. And through the VPN tunnel technology, PPTP, L2TP/IPSEC Way of data encryption and transmission, to ensure data security and reliability.

2.3. Backstage Monitoring System

After the front-end data acquisition, the system automatically calculates, statistics and analysis, and deposited into the database system. Can real-time monitoring and monitoring of the front-end substation site, the current value changes too large, exceeding the threshold, can trigger alarm and SMS notification.

Figure 2-1

3. System function characteristics

3.1. Reliability

The system is in high-pressure environment, with high reliability and security, through the dual monitoring of sensors and video surveillance equipment, to ensure the personal safety of monitoring personnel, to ensure the safety of monitoring systems and power equipment.

3.2. Real-time sex

Using the industrial-grade router of the 3G/4G network, the high-speed network transmission with and optical transmission ensures that the front-end data is transmitted without delay, using high-tight temperature sensor and power sensor, and custom acquisition and upload frequency control to ensure the real-time data transmission.

3.3. Enquiry and Statistics

System background software can be real-time data query and statistics, can be accurate to a certain site period of real-time data and status, can pin a site in a certain period of time the health analysis and query. Ensure that the data is kept for up to 3 months to ensure a record of the site environment and the impact of the video screen. For the post-system historical data statistical analysis was filed.

3.4. Full Data encryption

Router uses a variety of VPN tunnel encryption technology to ensure safe and reliable data transmission. A variety of encryption methods can be used to support a variety of encryption methods such as PPTP,GRE,L2TP,IPSCE. Data transmission will not be tampered with, you can secure the correct arrival of the monitoring center.

3.5, a wealth of alarm information

The system can set the temperature, the lower threshold and the power fault status threshold, and intrusion detection, mobile object trigger video monitoring strategy, when a trigger point of the situation, can be back-end system alarm, SMS alarm sent to the relevant technical personnel to confirm the status of the scene. Immediately and effectively make reliable fault analysis and planning. Ensure the safety of electrical equipment and related personnel.

4, the System software part of the functional interface

Some software interfaces:

5. Conclusion

With the development of economy and the development of electric power industry, the demand for safety and reliability of power grid is more and more high. And this one of the transmission and transformation of high-voltage equipment safety operation highlights the importance. Especially with the construction of unmanned substation, the method of manual patrol equipment has been gradually weakened. Under these conditions, on-line monitoring of high-voltage equipment becomes a necessary means. The appearance of the electric power wireless temperature monitoring system undoubtedly provides a new way of thinking for on-line monitoring. It creatively realizes the uninterrupted real-time on-line monitoring of the high-voltage equipment temperature, and provides the scientific basis and means for monitoring personnel to monitor the safe running state of the power grid.

In addition, through uninterrupted condition monitoring and long-term analysis based on temperature data, the deterioration process of equipment can be analyzed accurately, and the maintenance and upgrade of regular plan and overhaul will be improved to improve the reliability of power supply, reduce the blackout time, shorten the range of power outage, reduce the cost of maintenance and improve economic and social benefits.

Through the long-time operation of multiple substations, the system has realized the uninterrupted real-time on-line monitoring of power high-voltage equipment, and has successfully discovered many troubles for the customers of power system.

Wireless substation on-line monitoring system solution