Views: 1 Author: Site Editor Publish Time: 2020-08-07 Origin: Site
Scheme Design of Infrared Thermal Imaging Inspection Robot for Substation
Set the height of the main body of the infrared thermal imaging inspection robot to 1m, weight 80kg, operating speed 0-1m/s, positioning accuracy less than 7.5mm, operating temperature -35℃-40℃, and battery life not less than 5h. The omni-directional pan/tilt movement can automatically control the shooting angle of the infrared thermal imager and the visible light camera during the inspection to achieve full coverage of the inspection angle. At the same time, the front and rear of the infrared thermal imaging inspection robot are equipped with short-range collision barriers and long-distance ultrasonic barriers to avoid the phenomenon of the infrared thermal imaging inspection robot being damaged by obstacles. In addition, the infrared thermal imaging inspection robot can also use the visible light camera to monitor the operation status of the outdoor equipment in the substation, and find the equipment operation failures in time, such as the main transformer fan stagnation, abnormal gas pressure, oil leakage, etc., and perform troubleshooting.
Figure 1. Substation infrared thermal imaging inspection robot.
(1) Design and application of communication layer
It is possible to lay a wireless network system without blind spots in the substation to realize the network connection between the infrared thermal imaging inspection robot body and the background client to collect and store the audio, visible light image, infrared image and other information of the substation. At the same time, the inspection robot adopts the coordinated operation of the operation and maintenance master station and the slave station, carries out the cluster deployment application networking scheme design, and implements the operation through the one-to-many scheduling strategy. From the perspective of network security, the inspection robot adopts a separate VLAN networking method, and does not have any form of data interaction with any node in the internal network of the power system. If necessary, firewall and data encryption technology are used to ensure network security.
(2) Design and application of base station layer
The base station layer of the infrared thermal imaging inspection robot is composed of the robot background client, storage hard disk, and analysis software. It reflects powerful system functions, rich database content and convenient operation interface, and realizes the real-time collection and transmission of intelligent inspection data, Analysis, processing and early warning. In the design of the base station layer, reserve the interactive interface with the production management information system, and reserve the interactive interface with the auxiliary monitoring system of the substation, and set up a firewall between the interfaces. The system functions of the base station layer mainly include: robot management, various inspection task management, real-time monitoring management, inspection result confirmation, inspection result analysis, user settings, and robot system debugging and maintenance.
In summary, the design and application of infrared thermal imaging inspection robots in the inspection of outdoor equipment in substations continues to deepen. It is necessary to comprehensively understand and analyze the functions of infrared thermal imaging inspection robots in inspections of outdoor equipment in substations. Design and analysis are carried out at different levels such as the base station level and the base station level to realize the omni-directional, full-coverage, and full-recognition equipment detection of outdoor equipment intelligent inspection robots. In the follow-up, we will further study the inspection robots that can independently enter the switch room and protection room to conduct indoor equipment inspections, strengthen the coverage and effectiveness of intelligent inspections, and realize all-round inspections and control of all substation equipment.
