In this year’s severe flood, emergency rescue units have continuously innovated tactics and tactics, and introduced intelligent technologies such as unmanned aerial vehicles into various disaster relief scenarios, effectively improving the accuracy and timeliness of disaster relief.
Not long ago, northeast China suffered “three consecutive strikes” from typhoon in half a month “. In the middle of September, a dangerous situation occurred in the river section of the Yinma River. The length of the breach was 33 meters, causing the disaster to 3 surrounding villages and 15,000 mu farmland, and the accumulated water was about 15 million cubic meters.
Flood is the mobilization order “. After the danger happened, the fire brigade immediately mobilized all forces to rush to the scene for disposal, and used unmanned aerial vehicles to monitor the core disaster areas, and established a video connection between the rescue front line and the emergency command centers at all levels in the first time to realize “dynamic visual command, real-time monitoring and early warning provides important support for disaster handling.
Blocking the breach is the first priority of emergency rescue. The levee in the incident area is Shaki Levee. The pavement of the levee is very narrow, and it is difficult for vehicles to pass through the embankment at one end of the levee, which brings great pressure to the closing work of the breach.
Introducing intelligent technologies such as unmanned aerial vehicles to effectively improve the accuracy and timeliness of disaster relief
The fire commanders controlled the unmanned aerial vehicle to continuously monitor from the high altitude, and continuously returned the disaster scene in the 7-level strong wind. Through the aerial view and ground force of unmanned aerial vehicle, it is measured that the dam breach is about 33 meters, and the flood floods submerge large areas of farmland and villages.
In addition, during the implementation of the plugging work, the UAV continuously transmits data to the on-site command car to show the plugging progress in real time. 66 hours later, the breach was closed successfully. The command center further researched and judged the wide angle, zoom and other pictures of unmanned aerial vehicle, combined with the situation of waterway, revised the flood drainage rescue plan on the spot, adjusted the Operation points, and deployed 11 professional flood drainage rescue teams to carry out the flood drainage operation immediately.
Night is a high risk period, so night patrol arrangements are more intensive. In the traditional way, the levee can only hold a flashlight at night to see the water rising and water withdrawing, as well as water leakage, and then ignite the flash Cannon to inform the rescue.
With the cooperation of unmanned aerial vehicles, night patrol is more accurate and efficient. Through the infrared thermal imaging lens, roads, personnel and construction machines in the disaster area can be clearly seen. For areas suspected to be permeable and leaking, you only need to click remote control to locate them. Surface personnel can obtain accurate location information to help accurately troubleshoot risk points.
In addition, unmanned aerial vehicles can also monitor the operation conditions of construction machines and rescue workers such as forklift and backhoe on site to prevent accidents.
The flood of the drinking Horse River this time affected three villages, and the affected area was relatively large. In order to understand the changes of disaster situation in time and adjust the combat force and battle position in time, fire commanders use unmanned aerial vehicles to collect core disaster areas, and quickly output the Weizheng-shot model through Dajiang intelligence map. Once a day in the morning and afternoon to compare the drainage situation of the affected flooded areas.
Even in heavy rain, it only takes 2.5 hours to complete the data collection of 3.5 square kilometers of affected areas and the generation of the two-dimensional orthophoto model. On the model, fire commanders measure and mark the key information, transmit it to all levels, and print out the paper model on the command site to assist the command decision.
According to the two-dimensional orthophoto model in the late period of disaster relief, it can be seen that the water level in the affected areas has dropped significantly, large areas of flooded farmland have gradually emerged, and some roads with water in villages have been able to pass, which has achieved remarkable relief results.
