A fire location positioning system based on flame detection

Abstract

The present invention relates to the field of fire detection technology, and specifically to a positioning system for the location of a fire based on flame detection, which can quickly realize the positioning of a fire area, divide a parking area into a plurality of square fire monitoring and protection areas, and each fire monitoring and protection area is respectively installed with flame detectors with a detection angle of 90 degrees at the four corners to form a flame detector array. When a fire point appears in a fire monitoring and protection area, at least three flame detectors in the flame detector array of the fire monitoring and protection area respond, and at most two flame detectors in the flame detector arrays of other protection and monitoring and protection areas respond. The position of the flame detector array is determined according to the number of flame detector responses, thereby determining the position of the fire monitoring and protection area where the fire point is located.

Description

Technical Field

[0001] The invention relates to the technical field of fire detection, and in particular to a fire location positioning system based on flame detection. Background Art

[0002] With the development and popularization of new energy vehicles, new energy vehicle fire accidents occur frequently, especially on the decks of new energy vehicle transport ships, indoor parking lots, etc., where cars are densely parked. Once a fire accident occurs, it is difficult to detect and extinguish it as soon as possible, which often leads to the spread of fire and causes huge social property losses. Most of the fires in new energy vehicles are lithium battery fires. The early characteristics are not obvious, and the fire develops very quickly. The general fire extinguishing strategy is to spray fire suppression agents on the fire location or the burning car to implement fire extinguishing and cooling. In order to achieve effective fire extinguishing and reduce the amount of fire extinguishing agents, it is very important to locate the location of the fire. At present, fire detection mainly uses point-type smoke and heat fire detectors, which are difficult to achieve rapid response and precise positioning of fires. The use of image-type fire detectors has complex engineering coordinate settings, a small field of view in places with low parking lot heights, and very high costs. Summary of the invention

[0003] In order to solve the above technical problems, the present invention provides a fire location positioning system based on flame detection, which can quickly locate the fire area.

[0004] The technical solution is as follows: a fire location positioning system based on flame detection, characterized in that the parking area is divided into multiple square fire monitoring and protection areas, and flame detectors with a detection angle of 90 degrees are installed at the four corners of each fire monitoring and protection area to form a flame detector array. When a fire point appears in a fire monitoring and protection area, at least three flame detectors in the flame detector array of the fire monitoring and protection area will respond, and at most two flame detectors in the flame detector arrays of other protection and monitoring and protection areas will respond. The position of the flame detector array is determined according to the number of flame detector responses, thereby determining the position of the fire monitoring and protection area where the fire point is located.

[0005] Its further feature is that the back mounting surface of the flame detector forms an angle of 10° with the vertical direction.

[0006] After adopting the present invention, the flame detector array is used to realize fire detection and accurate positioning of the fire point, which can be realized at a relatively low cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0007] Figure 1 is a schematic diagram of a flame detector array; Figure 2 This is a flame detector installation diagram; Figure 3 Schematic diagram of the fire location locating process. DETAILED DESCRIPTION

[0008] See Figure 1 , Figure 2 As shown in the figure, a fire location positioning system based on flame detection divides the parking area into a plurality of square fire monitoring protection areas. Flame detectors 1 with a detection angle of 90 degrees are installed at the four corners of each fire monitoring protection area to form a flame detector array. Each flame detector 1 can achieve 90 degrees in width and height. Figure 1 The detection area divided by the green line is a quarter circle. The back mounting surface of the flame detector 1 is at an angle of 10° to the vertical direction. In the height direction, it is used for a detection area of ​​80°, increasing the effective detection range of the flame detector 1. When a fire point appears in a fire monitoring and protection zone, at least three flame detectors 1 in the flame detector array of the fire monitoring and protection zone will respond, and at most two flame detectors 1 in the flame detector array of other protection and monitoring and protection zones will respond. The position of the flame detector array is determined according to the number of flame detector 1 responses, thereby determining the position of the fire monitoring and protection zone where the fire point is located.

[0009] The following are specific alarm examples: Figure 3 As shown, there are a total of 9 fire monitoring protection zones, denoted as Zone 1, Zone 2, ..., Zone 9. Flame detectors that report fire alarms are indicated by red, flame detectors that do not report fire alarms are indicated by green, and the viewing angle of flame detectors that report fire alarms are indicated by red arrows. Assuming that the current fire point occurs in Zone 5, the fire point is closest to the flame detector array in Zone 5. At this time, the flame detectors in Zone 5 will give priority to reporting the fire alarm. Since the fire point is in the middle of Zone 5 and within the viewing angle of four flame detectors, eventually, all four flame detectors will alarm. If the fire point is close to a certain flame detector position, the flame detector at a farther distance in the diagonal position may not be able to detect it. At this time, only the flame detector closest to it and the flame detectors adjacent to it on both sides can detect it, that is, three flame detectors will alarm. Back Figure 3 When the fire in zone 5 becomes larger, two flame detectors may give alarms in zones 2, 4, 6, and 8, which are adjacent to each other, and at most one flame detector may give alarms in zones 1, 3, 7, and 9, which are farther away.

Claims

1. A fire location positioning system based on flame detection, characterized in that: The parking area is divided into multiple square fire monitoring and protection zones. Flame detectors with a detection angle of 90 degrees are installed at the four corners of each fire monitoring and protection zone to form a flame detector array. When a fire occurs in a fire monitoring and protection zone, at least three flame detectors in the flame detector array of the fire monitoring and protection zone will respond, and at most two flame detectors in the flame detector arrays of other protection and monitoring and protection zones will respond. The position of the flame detector array is determined according to the number of flame detector responses, thereby determining the position of the fire monitoring and protection zone where the fire occurs.

2. A fire location positioning system based on flame detection according to claim 1, characterized in that: The back mounting surface of the flame detector is at an angle of 10° to the vertical direction.

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