In the current situation of rising power demand, the security of the power grid is becoming more and more prominent, and the risk of external damage to power facilities is also increasing, bringing great challenges to the stable operation of the power grid. In order to effectively deal with this problem, our company has launched three kinds of transmission line anti-vandalism online monitoring intelligent programs, including laser anti-vandalism monitoring device, millimeter-wave radar anti-vandalism monitoring device, and laser radar point cloud anti-vandalism monitoring device. Below, I will briefly talk about their principles and features.
I. Laser anti-exterior breakage monitoring device DX-WPS100-JG
The laser anti-exterior breakage monitoring device integrates high-precision laser scanning and AI video recognition technology to build a double security line of defense. The working principle is as follows:
The laser detector installed on the tower forms a horizontal protective surface within a certain range by scanning with a laser beam. Once an object below/to the side touches the laser surface at an exceedingly high level, the receiver will detect the signal change, thus triggering an audible and visual alarm. At the same time, the AI surveillance camera on the tower can also make real-time video recordings of the scene and identify the hidden dangers of external breakage, and the alarm signal and scene images are transmitted to the monitoring center via 5G/4G wireless network.
Product Features
1, high precision: the use of a class of safe laser light source, wavelength 905nm, monitoring range of 500 meters, timely response, can make up for the existence of some of the errors in image recognition;
2, AI recognition: front-end AI algorithms can recognize large construction machinery such as cranes, tower cranes, pump trucks, and trees over the height, floating objects and other external breakage hazards;
3, panoramic monitoring: PTZ camera integration, video pixels 200w, horizontal 360 °, vertical ± 90 ° rotation;
4、Real-time warning: Once the risk of external damage is detected, the sound and light alarm device on the tower will be turned on immediately, and the warning information will be pushed through web, app, SMS and other ways;
5, remote control and linkage: support remote monitoring and control, can be linked with sound and light alarms, remote speakers and other equipment, remote shouting, timely stop dangerous behavior.
II. Millimeter-wave radar anti-exterior breach monitoring device DX-WPS100-JG3
The millimeter-wave radar anti-exterior breakage monitoring device has high anti-interference ability and strong penetrability, and can work normally in rain, snow and other harsh conditions without being affected by the environment. It adopts 76-81GHz (wavelength about 4mm) millimeter-wave radar, which can detect the millimeter-level movement of vertical 10~700m and horizontal 80m objects in real time.
Working principle of millimeter wave radar: It detects target objects by transmitting and receiving millimeter wave signals. When the millimeter-wave signal encounters an object, it will be reflected, and the radar calculates the distance, angle, speed and other information of the object by analyzing the time difference and phase change of the reflected signal.
When the millimeter wave radar detects the hidden danger of external breakage, it will immediately link the visualization terminal to capture and carry out secondary verification through AI recognition technology. On the contrary, AI monitoring terminal recognizes the hidden danger of external breakage and immediately links the millimeter wave radar for verification to determine whether there is a threat to the line, and the two-way confirmation is immediately transmitted back to the alarm.
Product Features
1, can realize the transmission line channel at least 800 meters range of detection, the resolution is not less than 1m, capture hidden danger target;
2, the use of solar panels, lithium iron phosphate batteries + supercapacitor power supply, no light battery can support continuous power supply for 30 days;
3、Can link image+voice+warning light to prevent external breakage accident;
4、Support 4G/APN wireless data communication, can access intranet platform.
III. Lidar point cloud anti-exterior breach monitoring device DX-WPS100-JG2
Based on the fusion technology of LiDAR and visualization, the LiDAR point cloud anti-breakage monitoring device can obtain the 3D point cloud data of the target object through the LiDAR transmitting laser beams and receiving reflected signals, establish a 3D model of the transmission channel, and combine with the AI visualization image monitoring to realize the intelligent identification of hidden dangers, such as trees, mechanical vehicles and other early warnings. In addition, the system can also be graded according to the distance of the hidden danger alarm, to build a quantitative analysis of the hidden danger of external damage to transmission lines and active protection system.
Product Features
1, three-dimensional space monitoring: can provide detailed information about the object in three-dimensional space, including distance, height, angle, etc., to quickly identify the potential risk of external damage and provide early warning;
2, data visualization: through the visualization of point cloud data, it can intuitively display the spatial relationship between objects and transmission lines, which is convenient for operation and maintenance personnel to carry out analysis and decision-making;
Wide range of application scenarios: it is suitable for such scenarios as line hazard ranging, tree barrier height identification, arc droop monitoring, and terrain change judgment.
