The transmission line anti-fire protection monitoring system actively performs spring fire prevention work

Introduction: The online monitoring system for transmission line anti-shanhuo consists of front-end equipment and back-office software. The transmission line mountain fire monitoring device integrates an infrared thermal imaging unit, an over temperature detection unit, a visible light imaging unit, a fire monitoring and analysis unit, a micro weather monitoring unit, a pan-tilt precision positioning unit, an audible and visual alarm unit, a video compression unit, and a wireless communication unit And the power system and other components.

Transmission line against mountain fire monitoring system

Overhead transmission lines are an important part of the power grid and carry a huge amount of power transmission. The safety of the lines is closely related to the stability of the power grid. However, with the continuous development of afforestation projects, the area of ​​forest land and the volume of forestry reserves have increased year by year. The prevention of mountain fires is the primary task.

According to the high season of mountain fires, they are mainly concentrated on:

(1) The vegetation is dry at the end of winter and early spring. The weather turns sunny and the temperature rises, and there is little rain and dryness;

(2) Before and after the Ching Ming Festival, they were concentrated during the graves of the ancestors;

(3) During the late autumn and early winter, when the weather is dry and windy, the farmers are also at a high peak of fire.

The dry and windy weather in spring and autumn is a period of high forest fire risk. With the arrival of Ching Ming Festival, burning of wasteland, burning ancestors, burning of firecrackers, burning of sundries, and other reasons can easily cause hill fires. The power facilities are protected against hill fires and external breakage. A serious situation. Once a fire has occurred, it must be taken extremely quickly to take measures to save it. Whether or not the fire is timely, and whether the decision is appropriate, depends on whether the discovery of the forest fire is timely.

To this end, Beijing and Capeview Technology Co., Ltd. have been working hard to prevent, reduce and control forest fires and developed a transmission line anti-fire monitoring system. This system uses a multi-spectral infrared detection fire radar, which is installed. In the observatory on the relatively high point of the mountain, it works 24 hours a day. After the target is found, it can be automatically alarmed and transmitted to the fire control department through wireless; with an electronic map, the location of the forest fire can be accurately displayed and the coordinates of the location can be transmitted. Go to the command post so that it can be saved in time to avoid a fire.

The on-line monitoring system for the transmission line against hill fire consists of two parts, front-end equipment and back-office software. The transmission line mountain fire monitoring device integrates an infrared thermal imaging unit, an over temperature detection unit, a visible light imaging unit, a fire monitoring and analysis unit, a micro weather monitoring unit, a pan-tilt precision positioning unit, an audible and visual alarm unit, a video compression unit, and a wireless communication unit And the power system and other components. Can output two video signals at the same time, with infrared thermal imaging over-temperature detection and visible light fire detection capabilities, and can be analyzed according to the confidence factor model, automatically give fire alarm information.

a) The use of front-end image analysis processing technology to automatically identify mountain fires, automatically and accurately locate the location of mountain fires, and have the ability to send the coordinates of the mountain fire occurrence point to the power sector in a wired or wireless manner, and the mountain fire occurrence point and alarm information (should be Including line name, tower number, wind speed, direction, temperature and humidity, alarm level, azimuth angle of fire source, distance from fire source to tower, visible light in the field and infrared light picture, etc.) can be effectively displayed on the background software of the device.

b) Smart shield function should be used to shield the normal heat sources of factories, houses, automobiles, electric lights, etc. manually or automatically; false alarms should be effectively eliminated. At the same time, it can also eliminate false alarms for normal heat sources in sports, such as fleeting fireworks, moving vehicles, ships and aircraft.

c) The system shall have a fire point temperature measurement function to accurately output the temperature change from the occurrence, development to the end of the fire.

d) The temperature error of the system for distant fires 200 meters away is ≤±10%

e) Panoramic scanning should be used.

f) should be able to preset the PTZ cruise trajectory, and can adjust the speed of the PTZ.

g) Statistics on pyrotechnics detected daily, weekly, monthly, and quarterly should be collected and displayed in an appropriate manner.

h) It should be able to meet the needs of monitoring and early warning of hill-fired power lines. It can detect and monitor the operation of transmission lines in a rain-fog environment without discrimination, and it can work 24 hours a day.

i) It should have the signal processing such as compression and coding of the captured image, and then transmit it to the host computer or the master station system through a reliable wireless network or optical fiber transmission method.

j) The device shall be capable of setting and adjusting the focal length, aperture, azimuth and PTZ pre-position of the camera under preset or remote command control.

k) should have automatic collection function. Normally, at least two infrared images are taken every preset position per hour; under abnormal conditions, the acquisition can be encrypted.

l) Automatic video recording should be available. When a mountain fire is detected, the live video is automatically recorded and stored. The video is automatically uploaded to the master station system. The master station system is stored in the storage server. The recording time can be configured in the background.

m) The monitoring device must be embedded with a secure encryption chip to encrypt data information such as pictures, wind speed, wind direction, temperature, humidity, and air pressure.

n) should be able to access the national network master system, the access data at least contains video, pictures, weather data, etc.; should be able to provide a comprehensive set of protection against the mountain fire monitoring system background display, alarm management, equipment management, equipment operation and other functions Into the solution.

o) The authority management function should be available, and different permissions can be set according to requirements.

p) It should have the function of manually and regularly deleting alarm information. The time for automatic deletion can be set regularly.

q) Have alarm information to manage mobile phones and clients through micro signal push. , should be able to receive early warning information. When the client is disconnected from the network or the power is off, the client can still receive the early warning information during the fault period after the fault is restored.

r) should have a controlled acquisition mode, can start the acquisition in response to remote commands.

s) should have the network time function.

Should have remote upgrade capabilities.

The State Grid Power Supply Company has made the prevention of mountain fire, fire prevention, and external defense damage under the line as the current key work. It has installed a transmission line anti-fire protection system to ensure that the early warning of early warning of hill fire hidden dangers and ensure the safe and stable operation of the power grid.

The forest fire may cause tripping of the line and cause serious impact on people's lives and production. Therefore, the power supply company should further increase the efforts in preventing fires on the transmission lines and prevent external breakage, and actively implement early prevention, early detection, and early treatment to ensure protection. The hidden dangers of transmission lines are controlled and controlled to ensure the safe and stable operation of the power grid.

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