Fire monitor linkage control method

Abstract

According to the fire monitor linkage control method, operation of the method depends on control modules installed in all fire monitors and a control host, the control modules of all the fire monitors are connected with the control host through communication units, pressure sensors are arranged in the fire monitors, and the pressure sensors are connected with the control host through the communication units. The coordinate information of each fire monitor is stored in the control host; the control host is in communication connection with the fire monitors, when a fire occurs and the multiple fire monitors are triggered to extinguish a fire source at the same time, the included angles between the fire monitors at different positions and the fire source are different, the fire monitors at the farther distance are closed through the control host according to the included angle information, and one or two fire monitors at the closer distance are reserved; the remaining fire monitors can obtain sufficient water pressure, the range and the spraying effect are guaranteed, and the phenomena that the fire extinguishing speed is low and the fire cannot be extinguished are avoided.

Description

Technical Field

[0001] The present invention relates to the field of firefighting, and in particular to a fire cannon linkage control method. Background Art

[0002] Automatic fire monitors use front-end detection systems, such as infrared and ultraviolet (UV) detection devices, to capture infrared images of the scene or light waves emitted by flames. A central controller uses image processing and other methods to detect and locate fires occurring within the control area. Once the fire source is located, the central controller controls the water monitor's rotating mechanism to rotate the monitor body, aiming the muzzle at the fire source. The principle of water spraying fire extinguishing is to connect the monitor to a fire pipe, pump water into the monitor via a high-pressure water pump, increase the water pressure, and create a high-speed water flow through the nozzle. This high-speed water flow can quickly cool the fire area, cooling the burning material to a non-combustible state. The increased water monitor pressure increases the water flow rate per unit time, allowing more fire extinguishing media to achieve a better fire extinguishing effect, thereby preventing the spread of fire.

[0003] The monitoring areas of some large warehouses, production workshops, gymnasiums, etc. are large, and multiple high-pressure fire monitors need to be installed on the upper part of the building to cover the entire monitoring and protection area to meet the fire protection needs; the positions of the gun heads of these fire monitors are different during the periodic scanning and detection process to ensure that when a fire occurs in different locations of the monitoring area, at least one fire monitor can capture the fire signal at the first time and start it in time to extinguish it. However, the defect is that some monitoring areas are located between multiple fire monitors. When a fire occurs, multiple fire monitors will detect the fire signal at the same time, and these fire monitors will start at the same time to extinguish the fire. This will cause insufficient water supply pressure of the high-pressure water pump of the water monitor and insufficient water flow in the fire pipe, causing these fire monitors to fail to achieve the expected range and spray effect, and the range and spray fire extinguishing effect do not meet the design requirements, and even the fire cannot be extinguished. Summary of the Invention

[0004] In order to solve the above problems, the present invention proposes a fire monitor linkage control method.

[0005] The technical solution of the present invention is: a fire monitor linkage control method, the operation of which relies on the control modules installed in each fire monitor and a control host, the control modules of each fire monitor are connected to the control host via a communication unit, a pressure sensor is provided in the fire monitor, and the pressure sensor is connected to the control host via the communication unit, and the coordinate information of each fire monitor is stored in the control host; The fire monitor linkage control method comprises the following steps: ① The cameras or sensors of multiple fire monitors rotate horizontally and in elevation through the driving mechanism to perform periodic scanning and detection. If there is no fire, the periodic scanning and detection will continue; ② After the cameras or sensors of one or two fire monitors detect a fire, they adjust their direction to aim at the fire source to extinguish it. The high-pressure water pump can provide the rated working pressure for the one or two fire monitors. At the same time, the control host will know through the pressure sensor that the one or two fire monitors have sufficient water spray pressure and will not issue any control commands. The fire will be extinguished by these one or two fire monitors. ③ When the cameras or sensors of two or more fire monitors detect a fire at the same time, they will simultaneously adjust their directions to aim at the fire source to extinguish the fire. If these fire monitors are activated simultaneously to extinguish the fire, insufficient water pressure will occur, and the range and spray fire extinguishing effect will not meet the design requirements; ④ The control host learns from the pressure sensors that the fire monitors have insufficient pressure, and learns from the fire source location information the angle α between the fire monitors and the fire source. The larger the angle α between the fire monitors and the fire source, the farther away they are, and the smaller the angle, the closer they are. The control host shuts down the fire monitors that are farther away based on the angle information, and retains one or two fire monitors that are closer. ⑤ The remaining one or two fire monitors will obtain sufficient water pressure, and the range and spray effect will be guaranteed, so that the fire source can be extinguished in a timely and efficient manner.

[0006] Preferably, if the working pressure of the remaining fire monitor in step ⑤ still does not meet the rated working pressure of the water monitor, the control host adjusts the water monitor spray elevation angle as much as possible through the linkage control mechanism to make the water flow sprayed by the fire monitor closer to the fire source.

[0007] Preferably, the fire monitor includes a butt joint socket connected to the fire pipe, the port of the butt joint socket is connected to a three-way gun body, two elbows are symmetrically provided at both ends of the three-way gun body, a three-way joint is connected between the outer ends of the two elbows, and the gun head of the fire monitor is connected in the middle of the three-way joint.

[0008] Preferably, a first rotation drive mechanism is provided between the butt joint seat and the three-way gun body, and a second rotation drive mechanism is connected between the three-way joint and the elbow.

[0009] Preferably, a visual camera and an infrared sensor are installed on the gun head at the same time.

[0010] The beneficial technical effect of the present invention is: the fire cannon linkage control method of the present invention is connected to the communication between the control host and each fire cannon. When a fire occurs, a large number of fire cannons are triggered to extinguish the fire source at the same time. The angles between the fire cannons at different positions and the fire source are different. The control host closes the fire cannons at a longer distance according to the angle information, and retains one or two fire cannons at a closer distance. The remaining fire cannons will obtain sufficient water pressure, and the range and spray effect will be guaranteed, thereby avoiding the phenomenon of slow fire extinguishing speed and the inability to extinguish the fire. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is one of the structural diagrams of the fire monitor linkage control method; Figure 2 This is the second structural diagram of the fire monitor linkage control method; Figure 3 This is the third structural diagram of the fire monitor linkage control method.

[0012] In the figure, 1. Fire hose, 2. Fire monitor, 3. Fire source, 4. Control host. DETAILED DESCRIPTION

[0013] Example 1, see attached Figure 1-3 A fire monitor linkage control method, the operation of which relies on a control module installed in each fire monitor 2 and a control host 4. The control module of each fire monitor 2 is connected to the control host 4 via a communication unit. A pressure sensor is provided in the fire monitor 2, and the pressure sensor is connected to the control host 4 via the communication unit. The pressure sensor monitors the water pressure inside the fire monitor 2 and sends the pressure signal to the control host 4 in real time. The coordinate information of each fire monitor 2 is stored in the control host 4; The fire monitor 2 linkage control method includes the following steps: The cameras or sensors of multiple fire monitors 2 are rotated horizontally by the driving mechanism to The fire monitors 2 have different scanning directions to ensure that the protection area can be covered by the fire monitors 2. If there is no fire, the periodic scanning will continue. After one or two fire monitors 2 have detected a fire, the camera or sensor Aim at the fire source 3 in the entire direction to extinguish the fire. The high-pressure water pump can provide the rated working pressure for one or two fire monitors 2. The range and spray fire extinguishing effect of the fire monitors 2 can be guaranteed. At the same time, the control host 4 will know through the pressure sensor that one or two fire monitors 2 have sufficient water spray pressure. No control command will be issued, and the fire will be extinguished by these one or two fire monitors 2. ③ When the cameras or sensors of two or more fire monitors 2 simultaneously detect a fire, they will simultaneously adjust their directions to aim at the fire source 3 to extinguish the fire. If the fire is extinguished simultaneously, insufficient water pressure will occur, and the range and spray fire extinguishing effect will not meet the design requirements; ④ The host computer knows that the pressure of these fire monitors 2 is insufficient through the pressure sensor, and The obtained fire source 3 position information knows the angle α between these fire monitors 2 and the fire source 3; the installation height of each fire monitor is the same, so the larger the angle α between the fire monitor 2 and the fire source 3, the farther the distance, and the smaller the angle, the closer the distance. The control host 4 turns off the fire monitor 2 that is farther away according to the angle information, and retains one or two fire monitors 2 that are closer.

[0014] ⑤ The remaining one or two fire monitors 2 will obtain sufficient water pressure, and the range and spray effect will be guaranteed, so that the fire source 3 will be extinguished in a timely and efficient manner; if the working pressure of the remaining fire monitor 2 still does not meet the rated working pressure of the water monitor, the control host 4 will adjust the water monitor spray elevation angle as much as possible through the linkage control mechanism to make the water flow sprayed by the fire monitor 2 closer to the fire source 3.

[0015] The height of the fire monitor 2 in this embodiment can also be different. The fire monitor 2 is provided with a height parameter inside, and the distance to the fire source 3 can be calculated based on the height and positioning angle, which can also be used as a reference item for linkage decision-making.

[0016] The fire monitor 2 of this embodiment includes a butt joint socket connected to the fire pipe 1, and a three-way gun body is connected to the port of the butt joint socket. A first rotation drive mechanism is provided between the butt joint socket and the three-way gun body, and the three-way gun body is driven to rotate relative to the butt joint socket by the first rotation drive mechanism. Two elbows are symmetrically provided at both ends of the three-way gun body, and a three-way joint is connected between the outer ends of the two elbows. A second rotation drive mechanism is connected between the three-way joint and the elbow, and the three-way joint is driven to rotate relative to the elbow by the second rotation drive mechanism. The gun head of the fire monitor 2 is connected in the middle of the three-way joint. When the fire monitor 2 with such a symmetrically arranged elbow structure is subjected to the reaction force of the injection, it has the advantage of overall force balance, the rotational torque applied to the gun body is small, and the overall stability and safety are high.

Claims

1. A fire monitor linkage control method, characterized by: The operation of the method relies on the control modules installed in each fire monitor and a control host. The control modules of each fire monitor are connected to the control host through a communication unit. A pressure sensor is provided in the fire monitor, and the pressure sensor is connected to the control host through the communication unit. The coordinate information of each fire monitor is stored in the control host. The fire monitor linkage control method comprises the following steps: ① The cameras or sensors of multiple fire monitors rotate horizontally and in elevation through the driving mechanism to perform periodic scanning and detection. If there is no fire, the periodic scanning and detection will continue; ② After the cameras or sensors of one or two fire monitors detect a fire, they adjust their direction to aim at the fire source to extinguish it. The high-pressure water pump can provide the rated working pressure for the one or two fire monitors. At the same time, the control host will know through the pressure sensor that the one or two fire monitors have sufficient water spray pressure and will not issue any control commands. The fire will be extinguished by these one or two fire monitors. ③ When the cameras or sensors of two or more fire monitors detect a fire at the same time, they will simultaneously adjust their directions to aim at the fire source to extinguish the fire. If these fire monitors are activated simultaneously to extinguish the fire, insufficient water pressure will occur, and the range and spray fire extinguishing effect will not meet the design requirements; ④ The control host learns from the pressure sensors that the fire monitors have insufficient pressure, and learns from the fire source location information the angle α between the fire monitors and the fire source. The larger the angle α between the fire monitors and the fire source, the farther away they are, and the smaller the angle, the closer they are. The control host shuts down the fire monitors that are farther away based on the angle information, and retains one or two fire monitors that are closer. ⑤ The remaining one or two fire monitors will obtain sufficient water pressure, and the range and spray effect will be guaranteed, so that the fire source can be extinguished in a timely and efficient manner.

2. A fire monitor linkage control method according to claim 1, characterized in that: If the working pressure of the remaining fire monitor in step ⑤ still does not meet the rated working pressure of the water monitor, the control host adjusts the water monitor spray elevation angle as much as possible through the linkage control mechanism to make the water flow sprayed by the fire monitor closer to the fire source.

3. The fire monitor linkage control method according to claim 1, characterized in that: The fire monitor includes a butt joint socket connected to the fire pipe, the port of the butt joint socket is connected to a three-way gun body, two elbows are symmetrically provided at both ends of the three-way gun body, a three-way joint is connected between the outer ends of the two elbows, and the gun head of the fire monitor is connected in the middle of the three-way joint.

4. A fire monitor linkage control method according to claim 3, characterized in that: A first rotation drive mechanism is provided between the butt joint pipe seat and the three-way gun body, and a second rotation drive mechanism is connected between the three-way joint and the elbow.

5. A fire monitor linkage control method according to claim 4, characterized in that: A visual camera and an infrared sensor are installed on the gun head at the same time.

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