An interactive management and control system for warehouse fire monitoring and fire fighting

Abstract

The present application relates to the field of fire fighting system, and discloses an interactive control system for warehouse fire supervision and fire fighting treatment, warehouse built-in shelves and form fire control supervision subarea containing multiple subareas, central controller based on smoke sensor monitoring data, through control module control walkway center two sides wide-angle water mist nozzle pipe network device implement smoldering fire control procedure, and central controller respectively based on smoldering risk release and need water spray fire extinguishing, send instruction to PLC to make it control walkway center installed mobile fire fighting device implement mobile monitoring procedure and judge reach and fire extinguishing procedure, scanning and fire extinguishing procedure, PLC control drive mechanism drives mobile fire fighting device and implement multiple procedures, through multiple fire point classification procedure open fire fire fighting, realize smoldering fire control procedure through fixed point fire control procedure to realize open fire fire fighting; it also includes intelligent interactive terminal, receives the multiple signals sent by the central controller, and facilitates personnel to arrive in time manual fire extinguishing.

Description

Technical Field

[0001] This invention relates to the field of fire protection systems, and more particularly to an interactive control system for monitoring and handling fires in warehouses. Background Technology

[0002] Many warehouses today face increasingly stringent fire prevention requirements. The hazards of smoldering and open flames can significantly impact the goods stored in the warehouse and cause substantial economic losses. Warehouses storing goods require strict monitoring and prevention of smoldering and open flame fires. Strict monitoring and prevention measures are necessary to detect fires before manual intervention and to automatically extinguish them. Therefore, there is an urgent need to achieve automatic monitoring of smoldering and open flame fires, automatic and multi-level fire suppression, and coordinated personnel intervention to meet high fire safety standards, prevent fire losses in advance, and enable more precise zoning for fire suppression.

[0003] Current automated fire suppression technologies primarily utilize smoke sensors and infrared flame sensors for smoke monitoring and flame identification. The accuracy of infrared flame sensor detection range largely depends on the relationship between the sensor's monitoring distance and the flame's radiation intensity; the closer the infrared flame sensor is to the flame, the greater the measured flame radiation intensity. By appropriately configuring preset smoke concentration thresholds and comparing them with the smoke concentration measured by the smoke sensor, the identification of open flames and smoldering can be relatively accurate. When used for fire monitoring and suppression, these technologies enable accurate implementation of smoldering detection and suppression, as well as open flame detection and fire suppression. Summary of the Invention

[0004] The purpose of this invention is to overcome the shortcomings of the existing technology and to mainly realize the automatic monitoring and multi-level automatic fire protection of smoldering and open flames in warehouses, thereby reducing fire risks and economic losses. This invention proposes an interactive control system for warehouse fire monitoring and fire protection.

[0005] An interactive control system for warehouse fire monitoring and fire suppression includes:

[0006] Warehouse; multiple fire monitoring zones, formed by shelves placed on both sides of the aisle in the warehouse, and each zone has multiple sub-zones with smoke sensors installed for monitoring and covering; two wide-angle water mist nozzle network devices and mobile fire-fighting devices are installed above the aisles to implement fire-fighting procedures for the fire monitoring zones facing both sides;

[0007] The wide-angle water mist nozzle network device includes a control module, which controls the wide-angle fan-shaped water mist nozzles corresponding to multiple sub-zones to spray water mist to implement the smoldering fire extinguishing procedure by connecting multiple first electric valves;

[0008] The mobile fire-fighting device includes a PLC, which controls and implements the mobile monitoring program, the arrival and fire extinguishing program, and the scanning and fire extinguishing program; it also includes: an infrared flame sensor, which monitors the flame radiation intensity and sends it to the PLC; a drive mechanism, which fixes and drives the mobile fire-fighting device to move; and a second electric valve, which controls the wide-angle fan-shaped sprinkler head to open and spray water to extinguish the fire; all of these are connected to the PLC and are controlled by the PLC to implement the multiple programs.

[0009] It also includes a central controller, which establishes a first binding relationship between the smoke sensors of multiple sub-zones and the first electric valve based on the sub-zone correspondence. When the central controller receives a smoke monitoring concentration in any sub-zone that exceeds a preset threshold, it sends a smoldering fire-fighting command to the control module based on the first binding relationship, so that it controls the first electric valve of the corresponding sub-zone to open and the wide-angle fan-shaped water mist nozzles to spray water mist to implement the smoldering fire-fighting procedure.

[0010] The central controller establishes and stores the second binding relationship between the control module and PLC based on the corresponding fire supervision zones. After the preset duration of a single smoldering fire suppression procedure is completed, the central controller sends a termination command to the control module to terminate the smoldering fire suppression. Based on the second binding relationship, it then sends a mobile monitoring command to the PLC, enabling it to control the implementation of the mobile monitoring procedure, and subsequently implement the judgment arrival and fire extinguishing procedure, and the scanning and fire extinguishing procedure as needed.

[0011] Furthermore, the warehouse shelves spaced apart include:

[0012] The double shelving in the middle of the warehouse creates fire safety monitoring zones with the goods areas facing two aisles respectively.

[0013] A single shelving unit is located at the edge of the warehouse, with the goods area facing the aisle to form a fire safety monitoring zone;

[0014] The double and single shelves on both sides of the aisle are symmetrically positioned to form fire monitoring zones. Mounting racks are installed above the warehouse shelves, with brackets extending downwards and connected to a drive mechanism. The drive mechanism connects to mobile fire-fighting devices facing the symmetrical sides, implementing independent mobile monitoring, arrival judgment and extinguishing, and scanning and extinguishing procedures for the fire monitoring zones on both sides. The mounting racks extend downwards to connect to the wide-angle water mist nozzle network on both sides of the mobile fire-fighting devices, implementing smoldering fire-fighting procedures for the fire monitoring zones on both sides.

[0015] The two sides of the double rack are back-to-back with a first fireproof barrier in the middle to achieve fire isolation on both sides. The fire supervision area of ​​the single rack is equipped with a second fireproof barrier on the back side to achieve fire isolation on the back side.

[0016] Aisle areas are set up between the fire supervision zones formed by multiple double-shelf and single-shelf structures to allow multiple shelves to be placed at intervals and to facilitate personnel to move around, move goods, and implement manual and precise fire protection in the aisle areas.

[0017] The multiple shelves are provided with barrier zones at their edges in the same direction, and temporary storage shelves are provided in the barrier zones to distinguish and store goods.

[0018] The multiple sub-zones of the fire supervision zone are separated by a third fireproof barrier.

[0019] Furthermore, the drive mechanism for installing and driving the mobile fire-fighting device to move along the corridor includes a fixing component, a drive component, and a transmission component:

[0020] The fixed component is connected to the mounting frame in the form of a fixed plate and installed in the central area of ​​the corridor, covering the horizontal area directly opposite the fire monitoring zone. The fixed plate is provided with multiple fixed through holes and a bearing support seat is provided at the end. The fixed plate is embedded in the ground to install non-contact positioning sensors.

[0021] The drive assembly integrates a stepper motor driver, a stepper motor, and a coupling, and is fixedly mounted at the beginning of the fixed assembly;

[0022] Transmission components, including:

[0023] The lead screw and nut assembly includes a high-precision ball screw, which is configured between the beginning and end of the mobile fire-fighting device and is configured in the same direction as the movement of the mobile fire-fighting device. The beginning of the lead screw is directly connected to the output shaft of the stepper motor through a coupling, and the end is supported by a bearing support seat on the fixed assembly. It also includes a ball nut sleeved on the lead screw, an integrated nut seat integrally formed by the ball nut, and multiple internal thread fixing holes facing upward.

[0024] And a linear guide pair, including square guide rails symmetrically arranged on both sides of the lead screw, precision raceways on both sides of the axial direction, and a closed slider with a ball circulation system. The closed slider achieves smooth movement along the axial direction of the raceway through the ball circulation system and the precision raceway. The guide rails are provided with internal thread fixing holes at intervals and fixed to the fixing assembly with countersunk bolts. The closed slider is provided with multiple internal thread fixing holes facing upward.

[0025] The mounting plate is securely locked by multiple bolts and ball nuts in an integrated nut seat and by internal thread fixing holes on the guide rail slider. The mobile fire-fighting device is fixedly installed on it. Based on the integrated connection of the mounting plate, the movement is driven by the ball nuts of the screw nut pair. The linear guide rail pair provides weight support and rigid guidance, enabling the mobile fire-fighting device to move axially along the screw.

[0026] The drive logic for the drive mechanism to drive the mobile fire-fighting device includes:

[0027] The PLC sends a positive pulse sequence to the stepper motor driver, causing the stepper motor to rotate forward, which in turn drives the lead screw to rotate forward, thus converting the ball nut and the indirectly connected mobile fire-fighting device to move forward in a straight line along the axis of the lead screw.

[0028] Furthermore, the PLC sends a reverse pulse sequence to the stepper motor driver, causing the stepper motor to reverse and drive the lead screw to rotate in the opposite direction, which is converted into the linear return movement of the ball nut and the indirectly connected mobile fire-fighting device along the lead screw axis.

[0029] Furthermore, the mobile monitoring procedure implemented by the mobile fire-fighting device includes:

[0030] After receiving the mobile monitoring command, the PLC controls the stepper motor to work in the forward direction and drives the mobile fire-fighting device to move from the beginning to the end. It also continuously monitors the flame radiation intensity via an infrared flame sensor and sends the data to the PLC, which simultaneously executes a peak recording program, including:

[0031] During the process of driving the mobile fire-fighting device to move and continuously monitoring the flame radiation intensity, the PLC performs real-time digital filtering on the received flame radiation intensity monitoring signal and records the filtered signal value and the corresponding motor calibration position coordinates. These coordinates are obtained by stepper motor pulse counting and periodic calibration in conjunction with non-contact positioning sensors installed in the fixed plate. The multiple non-contact positioning sensors are wired to the PLC.

[0032] The PLC simultaneously runs a peak detection program, including:

[0033] During the mobile scanning and monitoring of flame radiation intensity, the PLC initializes a peak queue. When the flame radiation intensity monitored by the infrared flame sensor exceeds the preset dangerous radiation intensity threshold, it begins to record potential peak values. When the flame radiation intensity continuously decreases from the peak value more than a preset number of times (4-8 times) and the decrease exceeds the preset proportion of the peak value by 5%-7% or more, the peak value is determined to be a valid fire point. The coordinates of the peak value and the flame radiation intensity are stored in the PLC as a structured record. After the mobile fire-fighting device completes the scanning, all the structured records are uploaded to the central controller, which controls the implementation of several fixed-point fire control programs, including the judgment arrival and extinguishing procedures, scanning and extinguishing procedures implemented by the mobile fire-fighting device.

[0034] Furthermore, after receiving the structured recorded data, the central controller sorts the structured records of multiple high-point peaks from high to low based on flame radiation intensity, stores the corresponding high-point peak coordinates in a processing queue according to the sorting order, and implements different fixed-point fire control programs, including:

[0035] When the number of pending queues is below a preset threshold, the central controller sends several first-point fire-fighting commands sequentially, sorted from highest to lowest by peak coordinates. This causes the PLC to control the mobile fire-fighting device to execute several arrival and extinguishing procedures, followed by scanning and extinguishing procedures, based on the peak coordinates. These procedures include:

[0036] The PLC controls the stepper motor to drive the mobile fire-fighting device to move according to the first fixed-point fire command. During the movement, the PLC uses the positioning sensor in the fixed plate as a reference to perform closed-loop position control, accurately reaching the high point peak coordinates, and controls the wide-angle fan-shaped sprinkler head to open and spray water to extinguish the fire. After the water spraying continues for a set duration, the PLC controls the second electric valve to close to stop the water spraying program of the arrival and fire extinguishing procedure, and starts to implement the scanning and fire extinguishing procedure. After the scanning and fire extinguishing procedure is completed, the PLC sends a scanning fire extinguishing implementation end signal to the central controller. After receiving the scanning fire extinguishing implementation end signal, the central controller continues to send the next first fixed-point fire command, including the next high point peak coordinates, in the waiting queue according to the order from high to low. This continues until the first fixed-point fire program for all high point peak coordinate positions in the waiting queue has been processed.

[0037] Furthermore, when the number of pending queues is not less than a preset threshold, the central controller sends multiple second fixed-point fire commands sequentially according to the peak coordinates of multiple high points from high to low. This causes the PLC to control the mobile fire-fighting device to execute multiple arrival and extinguishing procedures according to the peak coordinates of the high points, including:

[0038] The PLC of the mobile fire-fighting device receives the second fixed-point fire-fighting command and, after implementing the judgment arrival and fire extinguishing procedure for a set time, controls the wide-angle fan-shaped nozzle to stop spraying water to extinguish the fire. Then, when the infrared flame sensor detects that the flame radiation intensity has dropped to a preset low intensity threshold or that the flame radiation intensity cannot be detected, it sends a fixed-point fire-fighting implementation end signal to the central controller. After receiving the fixed-point fire-fighting implementation end signal, the central controller, based on the fixed-point fire extinguishing sequence corresponding to the peak coordinates of multiple high points in the queue to be processed, continues to send the second fixed-point fire-fighting command, including the peak coordinates of the next highest peak intensity, to the PLC, so that it implements the judgment arrival and fire extinguishing procedure for the next high point peak coordinate, until the second fixed-point fire-fighting procedure for all peak coordinates of all high points in the queue to be processed is completed.

[0039] The central controller executes a cyclic control program, including: after the central controller has processed the first fixed-point fire protection program / second fixed-point fire protection program based on the peak coordinates of all high points in the queue, it sends a mobile monitoring instruction to the PLC again, so that the PLC repeats the mobile monitoring program and the subsequent interactive processing program with the central controller, and executes the control implementation of the first fixed-point fire protection program / first fixed-point fire protection program as needed, until the mobile fire protection device can no longer detect the infrared flame radiation intensity when implementing the mobile monitoring program, ending all its mobile fire protection programs, and sending a no-open flame signal to the central controller.

[0040] In a preferred embodiment, the wide-angle fan-shaped sprinkler head and infrared flame sensor are mounted on a single-degree-of-freedom pan-tilt unit on the mobile fire-fighting device and fixed perpendicular to the same orientation of the pan-tilt unit. This is used in the scanning and extinguishing procedures implemented by the mobile fire-fighting device within the fixed-point fire control program implemented by the central controller, including:

[0041] After the PLC control implements the arrival and fire extinguishing procedure and continues for a preset time, the water spraying stops, and then the single-degree-of-freedom pan-tilt unit immediately performs the scanning and fire extinguishing procedure, including:

[0042] The PLC controls the horizontal symmetrical swing of a single-degree-of-freedom gimbal by setting the spray angle based on the vertical range coverage of the wide-angle fan-shaped nozzle, and continuously monitors the flame radiation intensity through an infrared flame sensor to implement the scanning procedure.

[0043] When the PLC receives the signal of flame radiation intensity detected by the infrared flame sensor, it immediately controls the single-degree-of-freedom gimbal to stop swinging and simultaneously controls the wide-angle fan-shaped nozzle to spray water to extinguish the fire in the direction directly in front of the gimbal, so as to implement the fire extinguishing procedure.

[0044] After the wide-angle fan-shaped nozzle executes the fire extinguishing program for the set duration, the PLC controls the wide-angle fan-shaped nozzle to stop spraying water and continues to perform scanning and fire extinguishing programs through the single-degree-of-freedom pan-tilt unit.

[0045] After the infrared flame sensor in several scanning programs fails to detect the flame radiation intensity, the PLC determines that the peak coordinate of the target high point has been successfully extinguished and sends a scanning fire extinguishing implementation end signal to the central controller to complete the scanning and fire extinguishing program.

[0046] In addition, it also includes: the central controller receiving the signal that the scanning fire protection implementation has ended, extracting the next high point peak coordinate from the queue to be processed, issuing a new fixed-point fire protection command, controlling the mobile fire protection device to implement a new fixed-point fire protection control program, until the fixed-point fire protection control program is implemented for all high point peak coordinates in the queue to be processed.

[0047] Furthermore, if the mobile fire-fighting device does not receive flame radiation intensity monitored by the infrared flame sensor during the execution of the mobile monitoring program under PLC control, the stepper motor of the drive device will reverse to drive the mobile fire-fighting device back to the head of the fixed component. During the process, the flame radiation intensity during movement will be monitored in real time through the mobile monitoring program, and the PLC will implement the peak recording program, run the peak monitoring program, and upload the corresponding results to the central controller to control the implementation of the fixed-point fire control program.

[0048] After the central controller completes the fixed-point fire control program based on the peak coordinates of all high points in the queue to be processed, it continues to receive smoke concentration monitoring data from smoke sensors for the fire monitoring sub-zones, processes and controls the wide-angle water mist nozzle network device to implement the smoldering fire suppression program, and processes and controls the mobile fire suppression device to implement the mobile monitoring program, arrival judgment and extinguishing program, and scanning and extinguishing program.

[0049] Furthermore, the mobile fire-fighting device is located at the symmetrical center of the aisle, with single-degree-of-freedom pan-tilt units and their infrared flame sensors and wide-angle fan-shaped nozzles symmetrically configured on both sides of the fire monitoring zone. These are positioned vertically at the center of the shelf, enabling independent mobile monitoring, arrival assessment and fire extinguishing procedures, as well as scanning and fire extinguishing procedures for the symmetrical fire monitoring zones on both sides. This includes:

[0050] The PLC establishes a left-side logic management block and a right-side logic management block for the single-degree-of-freedom pan-tilt units on both sides of the mobile fire-fighting device, as well as the infrared flame sensors and wide-angle fan-shaped sprinklers on them, and manages them independently. The central controller establishes a binding relationship between the left-side logic management block and the right-side logic management block of the mobile fire-fighting device's PLC and the control modules of the left and right fire supervision zones, respectively, through logic programming, and stores the information in the central controller and the PLC. After the central controller terminates the smoldering fire-fighting based on the control module of any fire supervision zone, it sends a mobile supervision command to the corresponding PLC pointing to the left-side or right-side logic management block of the fire supervision zone according to the binding relationship. This enables the PLC to control the corresponding logic management block to implement the mobile monitoring program, arrival judgment and fire extinguishing program, and scanning and fire extinguishing program on the corresponding side according to the binding relationship.

[0051] Furthermore, the central controller is configured with a conflict priority control program for the PLC when implementing movement monitoring procedures, arrival judgment and fire extinguishing procedures, and scanning and fire extinguishing procedures for the fire monitoring zones on both sides, including:

[0052] The PLC receives a mobile monitoring command from the central controller for a fire monitoring zone on one side of the corridor, such as the left side. While controlling the mobile fire suppression system to implement the mobile monitoring / arrival and extinguishing / scanning and extinguishing procedures on the left side, if the smoke concentration in any sub-zone of the fire monitoring zone on the other side exceeds a preset threshold, it sends several smoldering fire suppression commands to the control module of the wide-angle water mist sprinkler network on the right side to implement several smoldering fire suppression procedures. Simultaneously, after the central controller has implemented the mobile monitoring procedure based on the mobile fire suppression system and has the structured recorded data, it sends the first fixed-point fire suppression command / the second... After the two fixed-point fire-fighting instructions are processed by the first fixed-point fire-fighting procedure / second fixed-point fire-fighting procedure based on the peak coordinates of all high points in the corresponding pending queue, and when no infrared flame radiation intensity is detected during the implementation of the mobile monitoring procedure and a no-open flame signal is sent to the central controller, the central controller stops sending mobile monitoring instructions to the left logic management block of the PLC. After the smoldering fire-fighting procedure of the right fire monitoring zone is completed, the central controller then sends mobile monitoring instructions to the right logic management block of the PLC, either subsequently or simultaneously, and begins to implement the mobile monitoring procedure, arrival judgment and fire extinguishing procedure, and scanning and fire extinguishing procedure for the right fire monitoring zone.

[0053] Furthermore, the central controller continuously monitors the smoke monitoring data of the sub-zone in the left fire monitoring zone to continue to implement several smoldering fire suppression procedures in the left fire monitoring zone. It also continuously / cyclically controls the mobile fire suppression of the two opposing fire monitoring zones through the implementation of conflict priority control procedures until the smoldering and open flame fire situations in the two fire monitoring zones are resolved.

[0054] Furthermore, the wide-angle water mist nozzle network device includes a control module, a main water supply pipe, a water distribution network, multiple branch pipes and a first electric valve connected to the branch pipes, and a wide-angle fan-shaped water mist nozzle;

[0055] Each fire supervision zone is equipped with a water distribution network, and each sub-zone is equipped with a branch pipe. An independent electric water valve, i.e., the first electric valve, is installed at a preset position on the branch pipe, and a wide-angle fan-shaped water mist nozzle with a specific tilt angle and sufficient spray angle is installed at the end to achieve full coverage of water mist spraying in the horizontal and vertical range of the sub-zone.

[0056] All zoned water distribution networks are connected to the main water supply pipe pressurized by a self-priming pump; the fire monitoring zones are equipped with wide-angle fan-shaped water mist nozzles with appropriate flow rates and spray angles according to the horizontal and vertical range of each sub-zone, covering the vertical and horizontal range of the sub-zone;

[0057] Two sets of the wide-angle water mist nozzle network device are configured above any aisle, located on both sides of the mobile fire-fighting device and facing the fire supervision zones of the two side shelves respectively. Each set of the wide-angle water mist nozzle network device is equipped with multiple wide-angle fan-shaped water mist nozzles that spray water mist onto each sub-zone of the fire supervision zone and cover the vertical and horizontal range of the sub-zone.

[0058] The wide-angle fan-shaped nozzle of the mobile fire-fighting device is connected to the water distribution network or the main water supply pipe via a flexible water pipe.

[0059] The wide-angle fan-shaped nozzle is connected to a rigid water pipe and a second electric valve is installed between the flexible water pipe and the PLC. When the mobile fire-fighting device is controlled by the PLC to perform the water spraying process in the judgment arrival and fire extinguishing procedure and the scanning and fire extinguishing procedure, the second electric valve is controlled to open and spray water.

[0060] The main water supply pipe is pressurized and connected to a large-capacity water well via a self-priming pump. When any wide-angle fan-shaped nozzle or wide-angle fan-shaped water mist nozzle is opened via the corresponding second electric valve and first electric valve, water is drawn from the large-capacity water well by the self-priming pump to spray water and mist.

[0061] Furthermore, the integrated interactive system also includes an intelligent interactive terminal at the interactive end, which wirelessly connects to the central controller through its internal terminal controller and exchanges signals and data;

[0062] The integrated interactive system also configures multiple surveillance cameras on the shelves placed on both sides of the warehouse aisle to cover the monitoring area. The surveillance cameras are wirelessly connected to the intelligent interactive terminal, which can select to view the monitoring images of any surveillance camera to implement remote supervision.

[0063] When the smoke concentration detected by the smoke sensor exceeds a preset threshold, the central controller controls the wide-angle water mist nozzle network device to start and end the smoldering fire suppression procedure, controls the mobile fire suppression device to start and end the fixed-point fire suppression control procedure, and generates all / part of the corresponding alarm information and sends it to the intelligent interactive terminal when it receives the scanning fire suppression end signal, the fixed-point fire suppression end signal, and the no open flame signal.

[0064] The intelligent interactive terminal includes a display module and an alarm module, which receive corresponding alarm information and display it through the display module, and provide alarm prompts through the alarm module.

[0065] The terminal controller and central controller of the intelligent interactive terminal are respectively equipped with 4G and 5G communication modules and are wirelessly connected through 4G and 5G networks to send and receive data and signals.

[0066] Furthermore, the warehouse is equipped with an exhaust ventilation structure, including:

[0067] The warehouse has a cut-out area in the wall, and an exhaust fan is installed in the cut-out area. The exhaust fan is connected to the central controller through a switching circuit. When the smoke concentration detected by the smoke sensor exceeds a preset threshold, or when any of the fire handling procedures such as smoldering fire prevention procedure, movement monitoring procedure, arrival judgment and extinguishing procedure, and scanning and extinguishing procedure are executed, the central controller sends a high-level signal to the switching circuit and controls the exhaust fan to work to remove smoke and high-temperature gas from the warehouse.

[0068] The present invention has the following beneficial effects:

[0069] 1. In this invention, the warehouse is divided into multiple fire monitoring zones by placing double and single shelves at intervals in aisle and passageway areas. Each zone is further divided into multiple sub-zones for individual fire monitoring and small-scale differentiated handling. Through two sets of wide-angle water mist nozzles facing the two sides and a mobile fire-fighting device, smoldering fires can be automatically handled in a small area. Open flames are handled independently and on both sides with priority control programs to implement mobile monitoring programs, arrival judgment and extinguishing programs, and scanning and extinguishing programs. This achieves multi-measure and multi-level fire extinguishing for both smoldering and open flame fires, resulting in effective automatic and intelligent handling; and more precise, safe, and lower-damage fire monitoring and handling at the sub-zone level.

[0070] 2. In this invention, a mobile monitoring program is implemented through a mobile fire-fighting device. Peak recording and peak detection programs accurately detect effective fire points and generate structured records, which are then sent to a central processing unit (CPU). The CPU prioritizes the urgency of fire-fighting based on the number of fire points and the resulting time urgency differences. It then sends a first or second fixed-point fire-fighting command to the PLC. By considering both time and effectiveness, the CPU performs the best possible judgment, arrival, and extinguishing procedures for multiple detected fire points, along with subsequent scanning and extinguishing procedures, to improve processing efficiency and effectiveness. Furthermore, when conflicts arise between fire-fighting needs in the fire monitoring zones on both sides, a conflict priority control program coordinates fire-fighting efforts. This allows for precise, timely, and conflict-prioritized fire-fighting through a lower-cost mobile fire-fighting device. Combined with smoldering fire-fighting procedures, it ensures varying degrees and levels of fire-fighting effectiveness across different zones.

[0071] 3. Based on various monitoring and handling situations that require information, the central controller generates corresponding alarm information and sends it to multiple intelligent interactive terminals. In conjunction with receiving relevant monitoring images of the shelves, multiple managers / staff can be informed of the fire situation and handling progress in a timely manner and arrive at the scene quickly as needed to handle the fire manually with fire extinguishers. Through automatic and intelligent first-time fire handling and second-time personnel handling, timely information on fire and fire prevention is received and obtained, ensuring and improving fire fighting and fire prevention. Attached Figure Description

[0072] Figure 1 This is a schematic diagram of the overall structure of the interactive control system of the present invention;

[0073] Figure 2 This is a schematic diagram of the overall structure of an interactive control system for warehouse fire monitoring and fire fighting according to the present invention;

[0074] Figure 3 This invention is based on Figure 2 A schematic diagram of a portion of the components in the overall structural diagram;

[0075] Figure 4 This invention is based on Figure 2 Another component structure diagram in the overall structure diagram;

[0076] Figure 5 This invention is based on Figure 2 A schematic diagram of the structure of the mobile fire-fighting device and its drive mechanism;

[0077] Figure 6 This invention is based on Figure 5 A partial structural diagram of the drive mechanism in the diagram;

[0078] Figure 7 This invention is based on Figure 1 A schematic diagram illustrating the interactive effects of the interactive control system;

[0079] Figure 8 This is a circuit diagram illustrating the switching of electronically controlled components via a switching circuit in this invention.

[0080] Figure 9 This is a schematic diagram of the specific structure of the gimbal including the servo motor in this invention.

[0081] Legend: 100, Central Controller; 110, Fire Monitoring Zone; 111, Sub-zone; 112, Barrier Zone; 120, Temperature Sensor; 130, Smoke Sensor; 140, Third Fireproof Barrier; 200, Wide-Angle Water Mist Nozzle Network Device; 210, Control Module; 212, First Electric Valve; 213, Wide-Angle Fan-Shaped Water Mist Nozzle; 220, Main Water Supply Pipe; 221, Water Distribution Network; 222, Branch Pipe; 300, Mobile Firefighting Device; 310, PLC; 311, Single-Degree-of-Freedom Gimbal; 3111, Photoelectric Sensor; 3112, Horizontal Rotation Servo Motor; 3113, Trigger Lug; 3114, L-Shaped Mounting Bracket; 312, Wide-Angle... 313. Fan-shaped nozzle; 314. Second electric valve; 315. Infrared flame sensor; 320. Flexible water pipe; 321. Drive mechanism; 321. Fixing component; 3211. Positioning sensor; 3212. Bearing support seat; 322. Drive component; 3221. Stepper motor; 3222. Coupling; 323. Transmission component; 3231. Screw and nut pair; 3232. Linear guide pair; 3233. Mounting plate; 40. Large-capacity water well; 41. Self-priming pump; 50. Intelligent interactive terminal; 51. Terminal controller; 52. Display module; 53. Alarm module; 60. Exhaust fan; 70. Mounting bracket; 71. Extension bracket; 80. Surveillance camera. Detailed Implementation

[0082] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0083] Reference Figures 1-9 The warehouse shown is a partial demonstration for easy reference to its internal structure. The central processing unit 100 and control module 210 in the structural diagram can be understood as being installed in the designated positions shown in the attached diagram as integrated carriers. The PLC 310 is placed inside the mobile fire-fighting device 300. The terminal controller 51 of the intelligent interactive terminal 50 is built into the intelligent interactive terminal 50. The display module 52 is like a display screen. The alarm module 53 includes APP notifications and the sound / vibration module of the intelligent interactive terminal 50. The fire supervision zone 110 in the warehouse is used to store regular goods, and different types of goods are placed in sub-zones 111. The attached diagram shows that the sub-zones are set with multiple compartments. The number and size of the compartments can be customized according to the type of goods. Preferably, the fire supervision zone 110 and sub-zones 111 do not store / install circuit structures and electrical components, and are mainly used to store regular goods.

[0084] An interactive control system for warehouse fire monitoring and fire suppression is provided in this embodiment, comprising:

[0085] The warehouse includes multiple fire monitoring zones 110, formed by shelves placed on both sides of the aisle, each with multiple sub-zones and smoke sensors 130 installed for monitoring and covering. Two wide-angle water mist nozzle network devices 200 and mobile fire suppression devices 300 are installed above the aisles to implement fire suppression procedures for the fire monitoring zones facing both sides. The two wide-angle water mist nozzle network devices 200 above the aisles simultaneously and independently monitor and implement smoldering fire suppression for the fire monitoring zones 110 on both sides of the aisle. Mobile fire suppression devices 300, functionally facing both sides, are installed in the aisle via a drive mechanism 320 towards the symmetrical center, enabling the mobile fire suppression devices 300 to be installed based on the drive mechanism 320, move along the aisle, and independently implement open flame fire suppression for the fire monitoring zones 110 facing both sides.

[0086] The wide-angle water mist nozzle network device 200 includes a control module 210, which controls the wide-angle fan-shaped water mist nozzles 213 corresponding to multiple sub-zones 111 to spray water mist and implement a smoldering fire suppression procedure by connecting multiple first electric valves 212; the mobile fire suppression device 300 includes a PLC 310, also known as a PLC controller, which controls the implementation of a mobile monitoring procedure, an arrival judgment and fire suppression procedure, and a scanning and fire suppression procedure; it also includes an infrared flame sensor 314 to monitor the flame radiation intensity and send it to the PLC 310, a drive mechanism 320 to fix and drive the mobile fire suppression device 300 to move, and a second electric valve 313 to control the wide-angle fan-shaped nozzles 312 to open and spray water to extinguish the fire; all are connected to the PLC 310 and controlled by it to implement the multiple procedures; multiple sub-zones are also monitored and covered by temperature sensors 120.

[0087] It also includes a central controller 100 with logic programming capability, and wired connection such as bus / industrial Ethernet connection to control module 210 and PLC 310. Based on the sub-zone 111, the smoke sensors 130 or smoke sensors 130 and temperature sensors 120 of multiple sub-zones 111 are respectively bound to the first electric valve 212 through logic programming and stored in the central controller 100 and control module 210. When the central controller 100 receives a smoke monitoring concentration of any sub-zone 111 exceeding a preset threshold, or when the temperature monitoring value is also higher than the set high temperature threshold, it sends a smoldering fire prevention command based on the first binding relationship to control module 210, so that it controls the first electric valve 212 of the corresponding sub-zone 111 to open and the wide-angle fan-shaped water mist nozzle 213 sprays water mist to implement the smoldering fire prevention procedure.

[0088] The central controller 100 establishes and stores a second binding relationship between the control module 210 and the PLC 310 based on the corresponding fire monitoring zones 110. After the preset duration of a single smoldering fire suppression procedure is completed, the central controller 100 sends a termination command to the control module 210 to terminate the smoldering fire suppression. Based on the second binding relationship, it then sends a mobile monitoring command to the PLC 310, enabling it to control the implementation of the mobile monitoring procedure, and subsequently, as needed, the judgment arrival and extinguishing procedure, and the scanning and extinguishing procedure. If the smoldering fire suppression is terminated, the central controller 100 uses a built-in timer to count for 8-15 seconds, and waits for the water mist to dissipate before sending the mobile monitoring command to the PLC 310. The PLC 310 is also equipped with a left logic management block and a right logic management block, which are respectively bound to the control modules 210 on the left and right sides of the corridor center through logic programming.

[0089] The wide-angle water mist nozzle network device 200 comprises multiple wide-angle fan-shaped water mist nozzles 213, which are designed and installed according to hydraulic calculations and spacing and height arrangements. This ensures that the combined effective coverage area fully covers the entire space of the corresponding sub-zone 111 without any blind spots, achieving fire protection coverage of the corresponding sub-zone 111 for smoldering fire suppression procedures. Each wide-angle fan-shaped water mist nozzle 213 is positioned directly above and facing the sub-zone 111, with its spray angle set according to the horizontal width of the sub-zone 111 to ensure coverage of its horizontal width. Furthermore, the angle of inclination of its connection to the water pipe ensures vertical coverage of the water mist spray area. The vertical range of sub-area 111, wherein the tilt angle is designed with a precise fixed angle when the wide-angle fan-shaped water mist nozzle 213 is connected to the water pipe thread through its own thread. For example, in the mold design stage, based on the precise fixed angle design, the spray direction of the wide-angle fan-shaped water mist nozzle 213 is set to a specific tilt angle downward relative to the horizontal direction, such as 40°-70°. By directly tightening the nested thread part, the spray angle of the wide-angle fan-shaped water mist nozzle 213 covers the vertical range of the corresponding sub-area 111, thereby ensuring that the water spray range of the wide-angle fan-shaped nozzle 312 of the mobile fire-fighting device 300 is not blocked by the wide-angle fan-shaped water mist nozzle 213 and the connecting water pipe.

[0090] Preferably, the warehouse shelves spaced apart include: double shelves in the middle area of ​​the warehouse, with the goods area facing the two aisles to form a fire supervision zone 110; and single shelves adjacent to the edge of the warehouse, with the goods area facing the aisle to form a fire supervision zone 110, and the back side facing the edge of the warehouse or a non-shelf area set up as needed.

[0091] The double and single shelves on both sides of the aisle are symmetrically positioned to form a fire monitoring zone 110. A mounting frame 70 is installed above the warehouse shelves, with a support bracket 71 extending downwards and connected to a drive mechanism 320. The drive mechanism 320 connects to mobile fire-fighting devices 300 facing the symmetrical sides, enabling independent mobile monitoring, arrival assessment, and fire extinguishing procedures for each fire monitoring zone 110, as well as independent scanning and fire extinguishing procedures. This allows for mobile fire-fighting operations following the smoldering fire-fighting procedures of either fire monitoring zone 110. The mounting frame 70 extends downwards, with the support bracket 71 connecting to the mobile fire-fighting devices 300 on both sides. The angle water mist nozzle network device 200 is directly facing the fire supervision zones 110 on both sides to implement the smoldering fire prevention procedure; the wide-angle water mist nozzle network device 200 is fixedly connected to the water distribution network 221 and the main water supply pipe 220 through rigid branch pipes 222. The main water supply pipe 222 and multiple water pipes that play a rigid connection and support role are all made of rigid fixed shape metal anti-corrosion water pipes. The main water supply pipe 222 is fixed in the warehouse wall to play a basic fixing role. The mounting frame 70 can be a scattered rigid metal frame that is connected and fixed in the warehouse wall to provide rigid support and flexible, low-cost installation. The mounting frame 70 and the extension bracket 71 are fixed by welding and / or bolts and nuts.

[0092] The connection between the various types and branches of water pipes is preferably made by using elbows, straight pipes, and threaded tee connectors. Although some are not shown in the attached drawings, this connection method is still used in actual implementation. The mounting bracket 70 and the extension bracket 71 are connected by welding and / or bolts and nuts. The main water supply pipe 220 is inserted into and fixed to the warehouse wall to provide a basic installation and fixation effect. The extension bracket 71 is also equipped with clamps to fix the branch pipes 222 of the wide-angle water mist nozzle network device 200 (including welding fixation), as well as to fix the rigid water pipes below the water distribution network 221 used to connect the mobile fire-fighting device 300.

[0093] The two sides of the double rack are back-to-back with a first fireproof barrier in the middle to achieve fire isolation on both sides. The fire supervision zone 110 of the single rack is equipped with a second fireproof barrier on the back to achieve fire isolation on the back side, so as to maximize the isolation effect of smoldering and open flame fires and prevent the fire from spreading.

[0094] Aisle areas are set up between fire supervision zones 110 formed by multiple double-shelf and single-shelf units, and are set up in the center of the aisle based on the location of the mobile fire-fighting device 300. In addition to performing mobile monitoring procedures and judging arrival and fire extinguishing procedures, it is convenient for staff to move around in the aisle and passage area to facilitate manual fire fighting and handling of goods, while avoiding the mobile fire-fighting device 300, the wide-angle water mist nozzle network device 200 and other components.

[0095] Preferably, the multiple shelves are regularly arranged with barrier zones 112 along the same edge and in one direction, and temporary goods storage shelves are set therein; the multiple sub-zones 111 of the fire supervision zone 110 are separated by a third fireproof barrier 140 to prevent the spread of smoldering and open flames; the fireproof barrier can be an inorganic fireproof board such as inorganic magnesium oxide board or inorganic calcium silicate board, and can be connected and fixed in the corresponding position by various physical and mechanical methods, such as drilling, clamping and embedding, and auxiliary strong glue fixation.

[0096] Preferred, refer to Figure 5 , Figure 6 The drive mechanism 320 for installing and driving the mobile fire-fighting device 300 to move along the walkway includes a fixing component 321, a drive component 322, and a transmission component 323.

[0097] Among them, the fixing component 321 is connected to the mounting frame 70 by the end connectors (such as welding, drilling and bolt and nut connection) in the form of a fixing plate and installed in the central area of ​​the corridor, covering the horizontal range of the fire supervision zone 110. The fixing plate is provided with multiple fixing through holes and the end is provided with a bearing support seat 3212. The fixing plate is embedded in the ground to install the non-contact positioning sensor 3211.

[0098] The drive assembly 322 integrates a stepper motor 3221 driver, a stepper motor 3221, and a coupling 3222, and is fixedly installed at the beginning of the fixed assembly 321; it is installed adjacent to the barrier area 112, located in the area directly opposite the passageway, and the water spray range of the mobile fire-fighting device 300 during the judgment arrival and fire extinguishing procedures, scanning and fire extinguishing procedures covers the barrier area 112; the barrier area 112 is not normally used for storing goods;

[0099] Transmission assembly 323 includes:

[0100] The lead screw and nut assembly 3231 includes a high-precision ball screw, which is configured between the starting and ending points of the mobile fire-fighting device 300 and is configured in the same direction as the movement of the mobile fire-fighting device 300. The starting point of the lead screw is directly connected to the output shaft of the stepper motor 3221 through the coupling 3222, and the ending point is supported by the bearing support seat 3212 on the fixing assembly 321. It also includes a ball nut sleeved and connected to the lead screw. The ball nut is integrally formed into an integrated nut seat and has multiple internal thread fixing holes facing upward. The axial direction of the lead screw is parallel to the fire monitoring zones 110 on both sides. When the mobile fire-fighting device 300 moves along the axial direction of the lead screw, it is located in the center of the aisle and faces the fire monitoring zones 110 on both sides at the same distance.

[0101] The linear guide pair 3232 includes square guide rails symmetrically arranged on both sides of the lead screw, precision raceways on both axial sides, and a closed slider with a ball circulation system. The closed slider achieves smooth movement along the raceway axial direction through the ball circulation system and the precision raceways. The guide rails are provided with internally threaded fixing holes at intervals and fixed to the fixing component 321 with countersunk bolts. The closed slider has multiple internally threaded fixing holes facing upwards. The internally threaded fixing holes of the guide rails are provided with an upwardly protruding support portion through the fixing component 321 and the fixing component 321 is fixed to the guide rail with countersunk bolts. The layout of the ball circulation system and the precision raceways is based on mature existing technology. The accompanying drawings and the features of the linear guide pair in the existing technology can provide engineering support for the implementation and effectiveness of the linear guide pair 3232.

[0102] The mounting plate 3233 is securely locked to the integrated nut seat of the ball nut and the internal thread fixing hole on the guide rail slider by multiple bolts. The mobile fire-fighting device 300 is fixedly installed on it. Based on the integrated connection of the mounting plate 3233, the movement is driven by the ball nut of the screw nut pair 3231. The linear guide pair 3232 provides weight support and rigid linear guidance, so as to realize the axial translation of the mobile fire-fighting device 300 with the screw.

[0103] The multiple fixing through holes of the fixing component 321 are used to install and connect the drive component 322, the lead screw and nut pair 3231, and the linear guide pair 3232, such as the mounting bracket for fixing the stepper motor 3221, the stepper motor 3221, the bearing support seat 3212, and the guide rail with spaced internal thread fixing holes.

[0104] Driven by the stepper motor 3221 of the drive mechanism 320, the rotation is converted into the translation of the ball nut and integrated nut seat on the lead screw nut pair 3231 along the lead screw axis. Under the support and guidance of the linear guide pair 3232, the ball nut and integrated nut seat are translated along the lead screw axis. The integrated nut seat and the slider are connected by the mounting plate 3233, and the mobile fire-fighting device 300 is connected and fixed. This ensures that both sides of the mobile fire-fighting device 300 always face the fire supervision zone 110 and translate, ensuring that both sides can independently implement a complete mobile fire-fighting effect.

[0105] The driving logic of the drive mechanism 320 driving the mobile fire-fighting device 300 includes:

[0106] The PLC 310 sends a positive pulse sequence to the stepper motor 3221 driver, causing the stepper motor 3221 to rotate forward, driving the lead screw to rotate forward, which in turn translates into the ball nut and the indirectly connected mobile fire-fighting device 300 moving forward in a straight line along the lead screw axis; and the PLC 310 sends a reverse pulse sequence to the stepper motor 3221 driver, causing the stepper motor 3221 to rotate in reverse, driving the lead screw to rotate in the opposite direction, which in turn translates into the ball nut and the indirectly connected mobile fire-fighting device 300 moving backward in a straight line along the lead screw axis.

[0107] Furthermore, the mobile fire-fighting device 300 implements a mobile monitoring procedure including:

[0108] After receiving the mobile monitoring command, PLC310 controls stepper motor 3221 to drive the mobile fire-fighting device 300 from the beginning to the end, and continuously monitors the flame radiation intensity through infrared flame sensor 314 and sends the data to PLC310 to implement the mobile monitoring and peak recording program, including:

[0109] During the process of driving the mobile fire-fighting device 300 to move and continuously monitor the flame radiation intensity, the PLC310 performs real-time digital filtering on the received flame radiation intensity monitoring signal, such as using a moving average filtering algorithm. The PLC310 maintains an array containing the most recent N (e.g., 5) original sample values, and sets the current output value (the filtered output value of each iteration of the algorithm) to the average or median of this array, replacing multiple original sample values. This effectively smooths out spike noise and obtains a stable signal that truly reflects the flame radiation trend. The PLC310 also records the filtered signal value and the corresponding step voltage. The position coordinates of the stepper motor 3221 after calibration are obtained by counting pulses of the stepper motor 3221 and periodically calibrating the non-contact positioning sensors 3211 installed in the fixed plate. These multiple non-contact positioning sensors 3211 are connected to the PLC 310, such as normally open non-contact proximity switches, and their signal lines are connected to the high-speed input points of the PLC 310. The signal changes at these high-speed input points in the PLC 310 are programmed to have the highest priority. The fixed plate is embedded in the ground in a countersunk manner according to the boundary positions of multiple sub-areas 111, where the positioning sensors 3211, such as non-contact proximity switches, are installed. The system calibrates the stepper motor 3221 to the starting position of any sub-zone 111 and records the calibrated position coordinates. Specifically, the position coordinates of the mobile fire-fighting device 300 are tracked in real time using the high-resolution pulse counting of the stepper motor 3221. To eliminate the cumulative error of mechanical transmission, and considering cost, spacing, and operational effectiveness, the positioning sensor 3211 is installed at key points aligned with the fixed plate during the movement of the mobile fire-fighting device 300, such as the starting point, ending point, and corresponding sub-zone 111 boundary, and is equipped with preset absolute position coordinates such as 0.0 meters (starting point of zone A), 1 meter (starting point of zone B), etc. The PLC 310 sets the standard pulse counts for each of the following locations: 1 meter (start of area C), 2 meters (end of area C), and 3 meters (end of area C), and sets the corresponding preset pulse counters. When the mobile fire-fighting device 300 passes the positioning sensor 3211, the PLC 310 performs a position calibration, resets the current pulse counter to the absolute position coordinates of the key point (i.e., the corresponding pulse count), and corrects the current coordinates of the mobile fire-fighting device 300 to the absolute coordinates of that point. Based on this, as the mobile fire-fighting device 300 continues to move, the same logic is used to accumulate subsequent pulse counts, achieving closed-loop position control throughout the entire movement and ensuring position coordinate accuracy.

[0110] The PLC310 simultaneously runs a peak detection program, including: during the mobile scanning and monitoring of flame radiation intensity, the PLC310 initializes a peak queue. When the flame radiation intensity monitored by the infrared flame sensor 314 exceeds a preset dangerous radiation intensity threshold, it begins recording potential peak values. When the flame radiation intensity continuously decreases from the peak value more than a preset number of times (3-8 times, e.g., 5 times) and the decrease exceeds a preset proportion of 5%-7% or more, the peak value is determined to be a valid fire point. Based on the flame radiation intensity collected by the PLC310 through digital filtering and its corresponding calibrated position coordinates, i.e., the peak value coordinates and flame radiation intensity, a structured record is stored in the PLC310 as the peak queue. After the mobile fire-fighting device 300 completes the scanning, all the structured records are uploaded to the central controller 100, which then controls the implementation of several fixed-point fire control programs, including the arrival and extinguishing procedures implemented by the mobile fire-fighting device 300.

[0111] After receiving all structured records, the central controller 100 sorts the structured records containing multiple high-point peaks from high to low based on flame radiation intensity, and stores the corresponding high-point peak coordinates into a processing queue according to the sorting order. Different fixed-point fire control programs are then implemented. Specifically, the central controller 100 compares the number of fire points in the processing queue with a preset threshold, controlling the execution of precise overall fire suppression when there are few fire points and rapid multi-point fire suppression when there are many fire points. This includes:

[0112] When the number of pending queues is lower than a preset threshold, and considering specific usage scenarios (e.g., fewer than 3), the central controller 100 sends several first-point fire-fighting commands sequentially from high to low according to the peak coordinates of several high points. This causes the PLC 31 to control the mobile fire-fighting device 300 to execute several arrival and extinguishing procedures, as well as subsequent scanning and extinguishing procedures, according to the peak coordinates of the high points. Each first-point fire-fighting command sending and execution includes:

[0113] The PLC310 controls the stepper motor 3221 to drive the mobile fire-fighting device 300 to move according to the fixed-point fire-fighting command. During the movement, the PLC310 uses the positioning sensor 3211 in the fixed plate as a reference to perform closed-loop position control, accurately reaching the high point peak coordinates. It then controls the wide-angle fan-shaped sprinkler head 312 to open and spray water for a set time for fire extinguishing (the time is set within the PLC310). The PLC310 also controls the second electric valve 313 to close, stopping the water spraying program of the arrival judgment and fire extinguishing procedure, and starts the scanning and fire extinguishing program. After the scanning and fire extinguishing program is completed, the PLC310 sends a scanning fire extinguishing implementation end signal to the central controller 100. The spraying range of the wide-angle fan-shaped sprinkler head 312 covers the vertical range of the shelf.

[0114] After receiving the signal indicating the end of the scanning fire suppression implementation, the central controller 100 continues to send the next (second) first fixed-point fire suppression command, including the next high point peak coordinate, to the pending queue according to the order from high to low. This continues until the first fixed-point fire suppression procedure for all high point peak coordinate positions in the pending queue is completed. In other words, the central controller 100 completes the fixed-point fire suppression control procedure for fire points with high point peak coordinates below a preset threshold (e.g., 1-2) in the structured record.

[0115] Furthermore, when the number of pending queues is not less than a preset threshold (i.e., not less than 3), the central controller 100 sends multiple second fixed-point fire commands sequentially according to the peak coordinates of multiple high points from high to low. This causes the PLC 310 to control the mobile fire-fighting device 300 to execute multiple arrival and fire-extinguishing procedures according to the peak coordinates of the high points, including:

[0116] The PLC 310 of the mobile fire-fighting device 300 receives any second fixed-point fire-fighting command, and after determining the arrival and fire-fighting procedure and setting the time, controls the wide-angle fan-shaped sprinkler head 312 to stop spraying water for fire extinguishing. Then, when the infrared flame sensor 314 detects that the flame radiation intensity has dropped to a preset low-intensity threshold or that the flame radiation intensity cannot be detected, it sends a fixed-point fire-fighting implementation end signal to the central controller 100. After receiving the fixed-point fire-fighting implementation end signal, the central controller 100, based on the fixed-point fire-fighting sequence corresponding to the peak coordinates of multiple high points in the pending queue, continues to send a second fixed-point fire-fighting command, including the peak coordinates of the next highest peak intensity, to the PLC 310. The system performs the next high-point peak coordinate judgment, arrival, and fire extinguishing procedure, and receives the fixed-point fire extinguishing implementation end signal before determining completion, until the second fixed-point fire extinguishing procedure for all high-point peak coordinates in the pending queue is completed; the infrared flame sensor 314 adopts a long focal length, narrow-angle sensor / industrial flame detector such as ABB's LOS type industrial flame detector, so that its infrared flame detection range is focused on the entire vertical range of the fire supervision zone 110 and the horizontal narrow range, such as the horizontal range of the water spray covering the wide-angle fan-shaped sprinkler head. If necessary, a horizontal light shield is added to tighten the horizontal range, thereby enhancing the accurate monitoring of the flame radiation intensity of the high-point peak coordinates.

[0117] The central controller 100 executes a cyclic control program, including: after the central controller 100 has processed the first fixed-point fire-fighting program / second fixed-point fire-fighting program based on the peak coordinates of all high points in the queue to be processed, it sends a mobile monitoring instruction to the PLC 310 again, so that the PLC 310 repeats the mobile monitoring program and the subsequent interactive processing program with the central controller 100, and executes the control implementation of the first fixed-point fire-fighting program / first fixed-point fire-fighting program as needed, until the mobile fire-fighting device 300 can no longer detect the infrared flame radiation intensity when it implements the mobile monitoring program, ends all its mobile fire-fighting programs, and sends a no-flame signal to the central controller 100.

[0118] Furthermore, in order to improve the implementation effect of the fixed-point fire control procedure, a single-degree-of-freedom gimbal 311 is also set up, and the wide-angle fan-shaped nozzle 312 and the infrared flame sensor 314 are set on the single-degree-of-freedom gimbal 311 on the mobile fire-fighting device 300 and fixed in the same direction perpendicular to the gimbal. When the single-degree-of-freedom gimbal 311 is facing the shelf, the wide-angle fan-shaped nozzle 312 sprays water directly onto the shelf, and the infrared flame sensor 314 monitors the flame radiation intensity of the shelf according to the monitoring standard.

[0119] Specifically, in conjunction with the single-degree-of-freedom gimbal 311, the fixed-point fire control program implemented by the central controller 100 to control the mobile fire-fighting device 300 also includes and implements scanning and fire extinguishing programs.

[0120] After the PLC310 controls the arrival and extinguishing procedures and continues for a preset duration, it stops spraying water (by sending a low-level signal to the relevant switching circuit to close the second electric valve 313). Then, it immediately executes the scanning and extinguishing procedures via the single-degree-of-freedom pan-tilt unit 311, achieving open flame scanning and monitoring around the open flame coordinates and larger-area fire suppression after the mobile fire-fighting device 300 is positioned, including:

[0121] The PLC 310 controls the horizontal symmetrical swing of a single-degree-of-freedom gimbal 311 based on the vertical coverage of the wide-angle fan-shaped nozzle 312. The swing degree is set according to the characteristics of the shelving, such as a 30° swing to the left and right. An infrared flame sensor 314 continuously monitors the flame radiation intensity to implement a scanning program. The single-degree-of-freedom gimbal 311 is configured with a horizontal rotation servo motor 3112. The PLC 310 controls the horizontal rotation of the servo motor 3112 to achieve the horizontal swing of the single-degree-of-freedom gimbal 311, as described above (30° to the left and right). The connection between the horizontal rotation servo motor 3112 and the single-degree-of-freedom gimbal 311 is existing technology and will not be shown in disassembly diagrams in this application. For specific structural relationships, please refer to [reference needed]. Figure 5 It can be done with relevant mature existing technologies.

[0122] When the PLC310 receives the flame radiation intensity signal detected by the infrared flame sensor 314, it immediately controls the single-degree-of-freedom gimbal 311 to stop swinging, and at the same time controls the wide-angle fan-shaped nozzle 312 to spray water to extinguish the fire in the direction directly in front of the gimbal, so as to implement the fire extinguishing procedure in the scanning and fire extinguishing procedure.

[0123] After the wide-angle fan-shaped sprinkler head 312 executes the fire extinguishing program for the set duration (implemented through the design time function within the PLC310), the PLC310 controls the wide-angle fan-shaped sprinkler head 312 to stop spraying water and continues to implement the scanning and fire extinguishing program through the single-degree-of-freedom pan-tilt unit 311.

[0124] Based on a number of scan procedures, if the infrared flame sensor 314 detects no flame radiation intensity during the scan procedures counted by its built-in counter, the PLC 310 determines that the fire extinguishing within the target high point peak coordinate range has been successfully completed, and sends a scan fire extinguishing implementation end signal to the central controller 100 to complete the scan and fire extinguishing procedure; and also includes: upon receiving the scan fire extinguishing implementation end signal, the central controller 100 extracts the next high point peak coordinate from the waiting queue, issues a new fixed-point fire extinguishing command, causing the mobile fire extinguishing device 300 to repeatedly execute the judgment arrival and fire extinguishing procedure, the scan and fire extinguishing procedure, until the fixed-point fire extinguishing control procedure is completed for all target coordinates in the waiting queue.

[0125] refer to Figure 9The diagram illustrates the specific structure of the single-degree-of-freedom gimbal 311, including the horizontal rotation servo motor 3112, during rotation. The left side shows a partially disassembled structure, and the right side shows the structure after installation. During installation and debugging, a U-shaped photoelectric sensor 3111 is fixedly installed on the housing of the single-degree-of-freedom gimbal 311 at the midpoint of its horizontal rotation, which also corresponds to the 0° position of left and right rotation, directly opposite the position of the horizontal rotation servo motor 3112. An L-shaped mounting bracket 3114 is used to fix the sensor to the housing of the horizontal rotation servo motor 3112. A trigger tab 3113 is installed directly opposite the ground on the single-degree-of-freedom gimbal 311. Each time the mobile fire-fighting device 300 starts working, the PLC 310 controls the rotation of the single-degree-of-freedom gimbal 3111 via the horizontal rotation servo motor 3112 until the trigger tab 3113 blocks the sensing signal of the photoelectric sensor 3111, marking this physical position as the absolute 0° position and simultaneously updating the display. The zero-point reference of the potentiometer inside the horizontal rotation servo motor 3112 eliminates accumulated deviations. When the mobile fire-fighting device 300 executes the scanning and extinguishing procedure or the scanning procedure is completed, the PLC sends a PWM signal with a specific pulse width corresponding to the 0° position to the drive circuit inside the horizontal rotation servo motor 3112. The potentiometer inside the horizontal rotation servo motor 3112 provides real-time feedback on the current angle. The control circuit compares this feedback with the PWM signal command and forms a position closed loop, driving the servo motor 3112 to rotate precisely to the 0° position, completing the initial angle facing the fire monitoring zone. The control circuit is used to receive and parse the PWM signal sent by the PLC 310 to obtain the target angle, read the current angle sent by the potentiometer feedback, compare the two, generate a new PWM signal to drive the motor inside the servo motor 3112, including sending it to the corresponding drive circuit, so as to realize the rotation of the servo motor 3112 to the 0° target position.

[0126] Furthermore, during the execution of the mobile fire-fighting device 300's movement monitoring program under the control of PLC 310, if no flame radiation intensity is received from the infrared flame sensor 314, the mobile fire-fighting device 300 is driven back to the beginning of the fixed component 321 via the stepper motor 3221 of the drive device. The beginning of the fixed component 321 corresponds to the standard pulse count of the preset absolute position coordinate 0.0 meters (the beginning of area A) of the designated positioning sensor 3211. When the mobile fire-fighting device 300 passes the designated positioning sensor 3211, PLC 310 performs position calibration, resetting the current pulse counter to the absolute position coordinate value of the key point, i.e., the corresponding pulse count, and correcting the current coordinates of the mobile fire-fighting device 300 to the absolute coordinates of that point. Based on this, closed-loop position control of the mobile fire-fighting device 300 moving to the beginning of the fixed component 321 is achieved. During this period, real-time monitoring is performed via the infrared flame sensor 314, and a peak detection program is implemented through the movement monitoring and peak recording program and uploaded to the central controller 100 for execution of a new fixed-point fire control program.

[0127] After the central controller 100 completes the fixed-point fire control program based on the peak coordinates of all high points in the queue to be processed, it continues to receive smoke concentration monitoring of sub-zone 111 of fire monitoring zone 110 from smoke sensor 130, processes and controls wide-angle water mist nozzle network device 200 to implement smoldering fire prevention program, processes and controls mobile fire prevention device 300 to implement mobile monitoring program, arrival judgment and extinguishing program, scanning and extinguishing program.

[0128] Furthermore, the mobile fire-fighting device 300 is located at the symmetrical center of the aisle, with a single-degree-of-freedom pan-tilt unit 311 and its infrared flame sensor 314 and wide-angle fan-shaped nozzle 312 symmetrically arranged on both sides of the fire monitoring zones 110. Initially and in default positions, it faces both sides of the fire monitoring zones 110 and is positioned vertically in the center of the shelf. The infrared flame sensor 314 continuously monitors the flame radiation intensity to implement a scanning procedure, and independently implements a mobile monitoring procedure, an arrival and extinguishing procedure, and a scanning and extinguishing procedure for each of the symmetrical fire monitoring zones 110, including:

[0129] The PLC310 establishes a left-side logic management block and a right-side logic management block for the single-degree-of-freedom pan-tilt units 311 on both sides of the mobile fire-fighting device 300, as well as the infrared flame sensor 314 and wide-angle fan-shaped nozzle 312 on them, and manages them independently, similar to two control units. The central controller 100, based on the same fire supervision zone 110, establishes a binding relationship between the left-side logic management block and the right-side logic management block of the PLC310 of the mobile fire-fighting device 300 and the control modules 210 of the left and right fire supervision zones 110, respectively, and stores it in the central controller 100 and the PLC310. After the central controller 100 terminates the smoldering fire-fighting based on the control module 210 of any fire supervision zone 110, it sends a mobile supervision command pointing to the left-side or right-side logic management block of the fire supervision zone 110 to the corresponding PLC310 according to the binding relationship. This causes the PLC310 to control the corresponding logic management block to implement the mobile monitoring program, arrival judgment and fire extinguishing program, and scanning and fire extinguishing program on the corresponding side according to the binding relationship.

[0130] The central controller 100 is configured with a conflict priority control program for the PLC 310 when performing movement monitoring, arrival judgment and fire extinguishing, and scanning and fire extinguishing procedures on the two fire monitoring zones 110 respectively. For example, when the mobile fire-fighting device 300 executes the relevant procedure to the left and detects a smoldering fire on the right:

[0131] In the first scenario, after receiving a mobile monitoring command from the central controller 100 for one side of the corridor, such as the fire monitoring zone 110 on the left, the PLC310 controls the mobile fire suppression device 300 to implement the mobile monitoring program / arrival judgment and extinguishing program / scanning and extinguishing program for the left side. If the smoke monitoring concentration in any sub-zone of the fire monitoring zone 110 on the other side exceeds a preset threshold, it sends several smoldering fire suppression commands to the control module 210 of the wide-angle water mist nozzle network device 200 on the right side, causing it to implement several smoldering fire suppression programs for priority smoldering independent fire suppression, for example, sending one (or more) commands. Simultaneously, after the central controller 100 implements the mobile monitoring program based on the mobile fire suppression device 300 and has structured record data of the sent commands, it sends a first fixed-point fire suppression command / a second fixed-point fire suppression command. After the first fixed-point fire suppression program / the second fixed-point fire suppression program is completed based on the peak coordinates of all high points in the corresponding queue, the fire suppression process for the left side ends, and the central controller... The device 100 stops sending new mobile monitoring commands to the left logic management block of PLC310, and based on the completion result of the fire protection procedure on the left, stops sending new smoldering fire protection commands, such as the second (or more) commands, to the control module 210 of the wide-angle water mist nozzle network device 200 on the right; and in the second case, when the infrared flame radiation intensity is not detected and no open flame signal is sent to the central controller 100 during the implementation of the mobile monitoring procedure, the fire protection procedure on the left is automatically stopped. Furthermore, based on the completion and cessation of the fire protection procedure on the left and the completion of the smoldering fire protection procedure in the fire protection monitoring zone 110 on the right, the central controller 100 sends mobile monitoring commands to the right logic management block of PLC310 after the water mist dissipates, such as after the timing of the timer in the central controller 100 has ended, or simultaneously (in the initial preset of tense fire situation and more urgent needs), and begins to implement the mobile monitoring procedure, arrival judgment and fire extinguishing procedure, and scanning and fire extinguishing procedure for the fire protection monitoring zone 110 on the right.

[0132] Subsequently, the central controller 100 continuously monitors the smoke monitoring data of sub-zone 111 in the left fire monitoring zone 110 to continue to implement several smoldering fire suppression procedures in the left fire monitoring zone 110. By implementing a conflict priority control procedure, it continuously / cyclically (the left and right sides repeatedly implement fire suppression procedures through the conflict priority control procedure to extinguish the fire) coordinates the mobile fire suppression of the two opposing fire monitoring zones 110 until the smoldering and open flame fire situations in the two fire monitoring zones 110 are resolved.

[0133] During this period, staff can receive alarm information from the central controller 100 via the intelligent interactive terminal 50 regarding the start and end of the smoldering fire suppression procedure of the wide-angle water mist nozzle network device 200, as well as the frequency, sequence, and interval of alarm information regarding the start and end of the mobile fire suppression device 300's mobile monitoring procedure, arrival and extinguishing procedure, and scanning and extinguishing procedure. This allows for timely awareness of complex fire situations in the relevant fire supervision zone 110 and prompt intervention.

[0134] The wide-angle water mist nozzle network device 200 includes a control module 210, a main water supply pipe 220, a water distribution network 221, multiple branch pipes 222 and a first electric valve 212 connected to the branch pipes 222, and a wide-angle fan-shaped water mist nozzle 213.

[0135] Each fire monitoring zone 110 is equipped with a water distribution network 221, and each sub-zone 111 is equipped with a branch pipe 222 connected to the water distribution network 221. An independent electric water valve, i.e., the first electric valve 212, is installed at a preset position (in front of the wide-angle fan-shaped water mist nozzle 213), and a wide-angle fan-shaped water mist nozzle 213 with a specific tilt angle and sufficient spray angle is installed at the end of the branch pipe 222 to achieve full coverage of water mist spraying in the horizontal and vertical range of the sub-zone 111. This is also the main component and installation requirement of the wide-angle water mist nozzle network device 200. Multiple wide-angle water mist nozzle network devices 200 share a main water supply pipe 220.

[0136] All fire monitoring zones 110 water distribution networks 221 are connected to the main water supply pipe 220 pressurized by the self-priming pump 41; each fire monitoring zone 110 is equipped with wide-angle fan-shaped water mist nozzles 213 with appropriate flow rate and spray angle according to the horizontal and vertical range of each sub-zone 111, covering the vertical and horizontal range of the sub-zone 111.

[0137] Two sets of the wide-angle water mist nozzle network device 200, located above any aisle, are respectively situated on both sides of the mobile fire-fighting device 300 and directly opposite the fire supervision zones 110 of the side shelves. Each set of the wide-angle water mist nozzle network device 200 is equipped with multiple wide-angle fan-shaped water mist nozzles 213 that spray water mist onto each sub-zone 111 of the fire supervision zone 110, covering the vertical and horizontal range of the sub-zone 111 to implement smoldering fire-fighting treatment for the corresponding sub-zone 111. The multiple wide-angle fan-shaped water mist nozzles 213 are set at intervals between the wide-angle water mist nozzle network device 200 and the mobile fire-fighting device 300 and the drive mechanism 320, so that the water mist spray range avoids the mobile fire-fighting device 300 and the drive mechanism 320.

[0138] In a preferred embodiment, the wide-angle fan-shaped nozzle 312 of the mobile fire-fighting device 300 is connected to the water distribution network 221 via a flexible water pipe, that is, it also shares the water distribution network 221 of the wide-angle water mist nozzle network device 200 and is connected in the middle of a branch pipe, or connected to the main water supply pipe 220; preferably, the flexible hose 315 is connected to the water distribution network 221 on both sides of the wide-angle water mist nozzle network device 200, and is connected to the end of the rigid water pipe below the water distribution network 221, and is arranged laterally and / or extended and retracted. The rigid water pipe below the water distribution network 221 avoids the horizontal range of the fire monitoring zone 110. If the water distribution network 221 is extended beyond the horizontal range of the zone and fixed with the extension bracket 71, the flexible hose 315 extends and retracts and / or is stretched at any time with the movement of the mobile fire-fighting device 300.

[0139] The wide-angle fan-shaped nozzle 312 is connected to a rigid water pipe and a second electric valve 313. When the PLC 310 controls the mobile fire-fighting device 300 to perform the water spraying process in the arrival judgment and fire extinguishing procedures and the scanning and fire extinguishing procedures, it controls the second electric valve 313 to open and spray water. The installation effect of the second electric valve 313 is as follows: Figure 5 As shown (similarly applied to the connection structure of the first electric valve 212), the first electric valve 212 is installed on the branch pipe 222 and between the branch pipe 222 and the wide-angle fan-shaped water mist nozzle 213, controlling the wide-angle fan-shaped water mist nozzle 213 to open and spray water mist for smoldering fire fighting. The first electric valve 212 and the second electric valve 313 are both connected to the relevant water pipes, such as the branch pipe 222 and the rigid water pipe, by flange / threaded connection joints, and are waterproofly connected to the control module 210 and PLC 310 by actuators with IP68 waterproof structure.

[0140] The main water supply pipe 220 is pressurized and connected to the large-capacity water well 40 by a self-priming pump 41. When any wide-angle fan-shaped nozzle 312 or wide-angle fan-shaped water mist nozzle 213 is opened by the corresponding second electric valve 313 and first electric valve 212, water is drawn from the large-capacity water well 40 by the self-priming pump 41 to spray water and spray water mist.

[0141] Furthermore, the integrated interactive system also includes an intelligent interactive terminal 50, such as a mobile phone / tablet computer, which wirelessly connects to the central controller 100 and exchanges signals and data, such as 5G and 4G wireless connections, through its internal terminal controller 51.

[0142] The integrated interactive system also configures multiple surveillance cameras 80 on the shelves placed on both sides of the warehouse aisle to cover the monitoring area. The surveillance cameras 80 are wirelessly connected to the intelligent interactive terminal 50. The intelligent interactive terminal 50 can remotely monitor the monitoring screen of any surveillance camera 80 by selectively viewing the monitoring screen of any surveillance camera 80. For example, the existing technology widely implements the method of installing a dedicated APP for surveillance cameras 80 on the intelligent interactive terminal 50 to connect and acquire the monitoring screen of multiple surveillance cameras 80 in real time, and selectively open a certain monitoring screen to view the specific monitoring screen of the corresponding surveillance camera 80.

[0143] When the smoke concentration detected by the smoke sensor 130 exceeds a preset threshold, the central controller 100 controls the wide-angle water mist nozzle network device 200 to start and end the smoldering fire suppression procedure, and controls the mobile fire suppression device 300 to start and end the fixed-point fire suppression control procedure. During this period, it sends mobile monitoring instructions, receives multiple fixed-point fire suppression end signals, scans fire suppression end signals, and generates all / part of the corresponding alarm information when there is no open flame signal. This information is then sent to the intelligent interactive terminal 50 to notify the multiple users of the intelligent interactive terminal 50 to operate and view the information. Furthermore, any abnormalities are promptly detected and repaired through the monitoring camera 80 and on-site inspections.

[0144] The intelligent interactive terminal 50 includes a display module 52 and an alarm module 53. It receives corresponding alarm information and displays it through the display module 52, and provides alarm prompts through the alarm module 53. The alarm prompts include sound notification prompts and dedicated APP notification prompts.

[0145] The terminal controller 51 of the intelligent interactive terminal 50 and the central controller 100 are respectively equipped with 4G and 5G communication modules. They are wirelessly connected via 4G and 5G networks to send and receive data and signals, enabling relevant personnel to obtain timely information on the progress of fire handling and further intervene manually, thereby enhancing the timeliness and efficiency of fire handling.

[0146] The intelligent interactive terminal 50, such as a smartphone, can be understood to interact with the central controller 100 and the terminal controller 51 via signals and data. The terminal controller 51 controls the relevant display module 52 and alarm module 53 to provide reminders on relevant signal data. Optionally, a programming APP can be used to assist in implementing refined processes, enabling timely and accurate alarms. It also determines the completion status of the arrival and extinguishing procedures, and the scanning and extinguishing procedures after receiving the fixed-point fire-fighting implementation end signal and the scanning fire-fighting implementation end signal sent by the PLC 310. The PLC 310 is connected to the second electric valve 313 of the wide-angle fan-shaped sprinkler head 312 via a switching circuit, and controls the opening and closing of the second electric valve 313 by outputting high and low level signals to the switching circuit.

[0147] Furthermore, the warehouse is equipped with an exhaust ventilation structure, including:

[0148] The warehouse has a cut-out area in the wall, and an exhaust fan 60 is installed in the cut-out area. The exhaust fan 60 is connected to the central controller 100 through a switching circuit. When the smoke concentration detected by the smoke sensor 130 exceeds a preset threshold, and when any of the fire handling procedures, such as the smoldering fire prevention procedure, the movement monitoring procedure, the arrival judgment and extinguishing procedure, and the scanning and extinguishing procedure, are executed, the central controller 100 sends a high-level signal to the switching circuit and controls the exhaust fan 60 to work and discharge the smoke and high-temperature gas in the warehouse.

[0149] In a preferred embodiment, the valves of the wide-angle fan-shaped nozzles 312 and the multiple wide-angle fan-shaped water mist nozzles 213 in the wide-angle water mist nozzle network of the mobile fire-fighting device 300 are electric water valves. They are connected to a high-power self-priming pump 41 and then to a large-capacity water well 40 via related connecting water pipes. After the PLC 310 electrically starts the electric water valves, water is drawn out by the self-priming pump 41 and sprayed through the wide-angle fan-shaped nozzles 312 to extinguish fire and spray water mist through the wide-angle fan-shaped nozzles 213 to implement smoldering fire fighting and extinguishing.

[0150] The large-capacity water well 40 maintains sufficient water in real time through regular water body checks, and when water needs to be replenished, water is released into the large-capacity water well 40 through the tap water supply system.

[0151] The circuit diagram corresponding to the output high-level and low-level signals of the central controller 100, control module 210, and PLC 310 to the corresponding switching circuits to activate the exhaust fan 60, the first electric valve 212, and the second electric valve 313 is shown below. Figure 8 The central controller 100 outputs a high-level signal to the MOSFET of the switching circuit to turn it on, thereby turning on the switching circuit to make the exhaust fan 60 work. When a low-level signal is needed, the MOSFET is turned off, and the corresponding switching circuit is turned off. Other components such as the control module 210 and PLC 310 also control the corresponding switching circuits and their built-in MOSFETs in the same way, which are used to start and stop the electrical control components they control.

[0152] It is worth adding that during the continuous implementation of the smoldering fire prevention procedure, the mobile monitoring procedure, the arrival and extinguishing procedure, and the scanning and extinguishing procedure, multiple staff members can receive multiple alarm information through the intelligent interactive terminal 50, view the relevant warehouse conditions monitored by the monitoring camera 80 through the intelligent interactive terminal 50, and promptly send personnel to the scene to observe and handle the situation, and use fire extinguishers placed in safe locations in the warehouse to carry out precise handling and resolution.

[0153] For warehouse shelves without corresponding shelves, empty shelves can be used to save space and can be appropriately used for the placement of other fire-fighting equipment and the implementation of fire isolation zones.

[0154] Working principle:

[0155] This invention discloses an interactive control system for warehouse fire monitoring and fire suppression. Based on multiple sets of shelves within the warehouse, if smoldering or open flames occur in goods in any sub-zone 111 of the fire monitoring zone 110, generating smoke, the central controller 100 immediately sends a smoldering fire suppression command to the control module 210 when the received smoke concentration in sub-zone 111 exceeds a preset threshold. This command, based on a preset binding relationship, controls the corresponding wide-angle fan-shaped water mist nozzles 213 to spray water mist covering the area of ​​sub-zone 111, implementing a smoldering fire suppression procedure. This first-time water mist spraying extinguishes / eliminates the smoldering fire. If the smoldering fire suppression procedure continues for more than a preset duration (single time), the central controller 100 terminates the smoldering fire suppression control. Subsequently, based on the binding relationships established between the left and right logic management blocks of the PLC 310 of the mobile fire suppression device 300 and the control modules 210 of the left and right fire monitoring zones 110, respectively... The system sends a mobile monitoring command to the PLC 310, which controls the mobile fire-fighting device 300 to perform mobile monitoring and arrival / extinguishing procedures on the left / right fire monitoring zones 110 according to the logic programming relationship. This includes open flame inspection and extinguishing. Through the control and execution of the mobile monitoring and arrival / extinguishing procedures of the mobile fire-fighting device 300, several fire points are identified through mobile monitoring and peak recording procedures. The central controller 100 controls the mobile fire-fighting device 300 to perform several fixed-point fire control procedures, and performs arrival / extinguishing procedures as needed, as well as subsequent scanning and extinguishing procedures. This enables fixed-point water spraying and extinguishing of multiple open flame fire points. The system also uses the swing of the single-degree-of-freedom pan-tilt unit 311 to scan the range of the infrared flame sensor 314. After detecting an open flame, the single-degree-of-freedom pan-tilt unit 311 stops swinging and scanning and simultaneously sprays water for fire suppression. This achieves precise open flame monitoring, extinguishing, range scanning and identification, and re-directing water spraying for fire suppression.

[0156] During this period, multiple intelligent interactive terminals 50 are wirelessly connected to the central controller 100. When the central controller 100 receives the smoke monitoring concentration from the smoke sensor 130 exceeding a preset threshold, it controls the wide-angle water mist nozzle network device 200 to begin and end the smoldering fire suppression procedure. It also controls the mobile fire suppression device 300 to begin and end the fixed-point fire suppression procedure, i.e., determining the arrival and extinguishing procedures, and the scanning and extinguishing procedures. Alarm information is received and displayed on the display module 52 and alerted by the alarm module 53, prompting multiple staff members to be promptly informed of the fire situation and its handling status, arrive on-site in time, and manually intervene to extinguish the fire using fire extinguishers placed in safe locations within the warehouse. The warehouse is equipped with surveillance cameras 80, allowing staff to receive real-time monitoring footage via their intelligent interactive terminals 50. Multiple fire-resistant barriers are installed on the warehouse shelves to reduce the spread of fire and reduce the risk of fire. When dealing with low-level open flames, the fire spreads further, and the drive component 322 is located near the barrier zone 112 and directly opposite the aisle area, enabling the mobile fire-fighting device 300 to implement the judgment, arrival, and extinguishing procedures, as well as the scanning and extinguishing procedures, to achieve a reasonable and useful coverage range for water spraying. Based on the relatively complete judgment, arrival, and extinguishing procedures, the scanning and extinguishing procedures, and the timely implementation of the smoldering fire-fighting procedure by the wide-angle water mist nozzle network device 200 at the initial stage of the fire, the first timely handling and second precise fire suppression can be greatly improved. Through the alarm prompts of the intelligent interactive terminal 50, the fireproof design of the shelves, the configuration of aisles and passageways, and the precise handling by staff using fire extinguishers, the warehouse achieves multiple automatic and intelligent handling of fire situations, rational prevention of spread, and timely manual extinguishing by staff, improving the convenience and effectiveness of staff in handling warehouse goods and dealing with open flames.

[0157] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An interactive control system for warehouse fire monitoring and fire suppression, characterized in that, include: storehouse; Multiple fire monitoring zones are formed by shelves placed on both sides of the aisle in the warehouse, and each zone has multiple sub-zones with smoke sensors installed for monitoring and covering. Above the aisle, two wide-angle water mist nozzles and mobile fire-fighting devices are installed to implement fire-fighting procedures for the fire monitoring zones facing both sides. The wide-angle water mist nozzle network device includes a control module, which controls the wide-angle fan-shaped water mist nozzles corresponding to multiple sub-zones to spray water mist to implement the smoldering fire extinguishing procedure by connecting multiple first electric valves; The mobile fire-fighting device includes a PLC, which controls and implements the mobile monitoring program, the arrival and fire extinguishing program, and the scanning and fire extinguishing program; it also includes: an infrared flame sensor, which monitors the flame radiation intensity and sends it to the PLC; a drive mechanism, which fixes and drives the mobile fire-fighting device to move; and a second electric valve, which controls the wide-angle fan-shaped sprinkler head to open and spray water to extinguish the fire; all of these are connected to the PLC and are controlled by the PLC to implement the multiple programs. It also includes a central controller, which establishes a first binding relationship between the smoke sensors of multiple sub-zones and the first electric valve based on the sub-zone correspondence. When the central controller receives a smoke monitoring concentration in any sub-zone that exceeds a preset threshold, it sends a smoldering fire-fighting command to the control module based on the first binding relationship, so that it controls the first electric valve of the corresponding sub-zone to open and the wide-angle fan-shaped water mist nozzles to spray water mist to implement the smoldering fire-fighting procedure. The central controller establishes and stores the second binding relationship between the control module and PLC based on the corresponding fire supervision zones. After the preset duration of a single smoldering fire suppression procedure is completed, the central controller sends a termination command to the control module to terminate the smoldering fire suppression. Based on the second binding relationship, it then sends a mobile monitoring command to the PLC, enabling it to control the implementation of the mobile monitoring procedure, and subsequently implement the judgment arrival and fire extinguishing procedure, and the scanning and fire extinguishing procedure as needed.

2. The interactive control system for warehouse fire monitoring and fire fighting according to claim 1, characterized in that: The warehouse shelves spaced apart include: The double shelving in the middle of the warehouse creates fire safety monitoring zones with the goods areas facing two aisles respectively. A single shelving unit is located at the edge of the warehouse, with the goods area facing the aisle to form a fire safety monitoring zone; The double and single shelves on both sides of the aisle are symmetrically positioned to form fire monitoring zones. Mounting racks are installed above the warehouse shelves, with brackets extending downwards and connected to a drive mechanism. The drive mechanism connects to mobile fire-fighting devices facing the symmetrical sides, implementing independent mobile monitoring, arrival judgment and extinguishing, and scanning and extinguishing procedures for the fire monitoring zones on both sides. The mounting racks extend downwards to connect to the wide-angle water mist nozzle network on both sides of the mobile fire-fighting devices, implementing smoldering fire-fighting procedures for the fire monitoring zones on both sides. The two sides of the double rack are back-to-back with a first fireproof barrier in the middle to achieve fire isolation on both sides. The fire supervision area of ​​the single rack is equipped with a second fireproof barrier on the back side to achieve fire isolation on the back side. Aisle areas are set up between the fire supervision zones formed by multiple double-shelf and single-shelf structures to allow multiple shelves to be placed at intervals and to facilitate personnel to move around, move goods, and implement manual and precise fire protection in the aisle areas. The multiple shelves are provided with barrier zones at their edges in the same direction, and temporary storage shelves are provided in the barrier zones to distinguish and store goods. The multiple sub-zones of the fire supervision zone are separated by a third fireproof barrier.

3. The interactive control system for warehouse fire monitoring and fire fighting according to claim 2, characterized in that: The drive mechanism for installing and driving the mobile fire-fighting device to move along the walkway includes a fixed component, a drive component, and a transmission component. The fixed component is connected to the mounting frame in the form of a fixed plate and installed in the central area of ​​the corridor, covering the horizontal area directly opposite the fire monitoring zone. The fixed plate is provided with multiple fixed through holes and a bearing support seat is provided at the end. The fixed plate is embedded in the ground to install non-contact positioning sensors. The drive assembly integrates a stepper motor driver, a stepper motor, and a coupling, and is fixedly mounted at the beginning of the fixed assembly; Transmission components, including: The lead screw and nut assembly includes a high-precision ball screw, which is configured between the beginning and end of the mobile fire-fighting device and is configured in the same direction as the movement of the mobile fire-fighting device. The beginning of the lead screw is directly connected to the output shaft of the stepper motor through a coupling, and the end is supported by a bearing support seat on the fixed assembly. It also includes a ball nut sleeved on the lead screw, an integrated nut seat integrally formed by the ball nut, and multiple internal thread fixing holes facing upward. And a linear guide pair, including square guide rails symmetrically arranged on both sides of the lead screw, precision raceways on both sides of the axial direction, and a closed slider with a ball circulation system. The closed slider achieves smooth movement along the axial direction of the raceway through the ball circulation system and the precision raceway. The guide rails are provided with internal thread fixing holes at intervals and fixed to the fixing assembly with countersunk bolts. The closed slider is provided with multiple internal thread fixing holes facing upward. The mounting plate is securely locked by multiple bolts and ball nuts in an integrated nut seat and by internal thread fixing holes on the guide rail slider. The mobile fire-fighting device is fixedly installed on it. Based on the integrated connection of the mounting plate, the movement is driven by the ball nuts of the screw nut pair. The linear guide rail pair provides weight support and rigid guidance, enabling the mobile fire-fighting device to move axially along the screw. The drive logic for the drive mechanism to drive the mobile fire-fighting device includes: The PLC sends a positive pulse sequence to the stepper motor driver, causing the stepper motor to rotate forward, which in turn drives the lead screw to rotate forward, thus converting the ball nut and the indirectly connected mobile fire-fighting device to move forward in a straight line along the axis of the lead screw. Furthermore, the PLC sends a reverse pulse sequence to the stepper motor driver, causing the stepper motor to reverse and drive the lead screw to rotate in the opposite direction, which is converted into the linear return movement of the ball nut and the indirectly connected mobile fire-fighting device along the lead screw axis.

4. The interactive control system for warehouse fire monitoring and fire fighting according to claim 3, characterized in that: The mobile monitoring procedures implemented by the mobile fire-fighting device include: After receiving the mobile monitoring command, the PLC controls the stepper motor to work in the forward direction and drives the mobile fire-fighting device to move from the beginning to the end. It also continuously monitors the flame radiation intensity via an infrared flame sensor and sends the data to the PLC, which simultaneously executes a peak recording program, including: During the process of driving the mobile fire-fighting device to move and continuously monitoring the flame radiation intensity, the PLC performs real-time digital filtering on the received flame radiation intensity monitoring signal and records the filtered signal value and the corresponding motor calibration position coordinates. These coordinates are obtained by stepper motor pulse counting and periodic calibration in conjunction with non-contact positioning sensors installed in the fixed plate. The multiple non-contact positioning sensors are wired to the PLC. The PLC simultaneously runs a peak detection program, including: During the mobile scanning and monitoring of flame radiation intensity, the PLC initializes a peak queue. When the flame radiation intensity monitored by the infrared flame sensor exceeds the preset dangerous radiation intensity threshold, it begins to record potential peak values. When the flame radiation intensity continuously decreases from the peak value more than a preset number of times (4-8 times) and the decrease exceeds the preset proportion of the peak value by 5%-7% or more, the peak value is determined to be a valid fire point. The coordinates of the peak value and the flame radiation intensity are stored in the PLC as a structured record. After the mobile fire-fighting device completes the scanning, all the structured records are uploaded to the central controller, which controls the implementation of several fixed-point fire control programs, including the judgment arrival and extinguishing procedures, scanning and extinguishing procedures implemented by the mobile fire-fighting device.

5. The interactive control system for warehouse fire monitoring and fire fighting according to claim 4, characterized in that: After receiving the structured recorded data, the central controller sorts the structured records of multiple high-point peaks from high to low based on flame radiation intensity, stores the corresponding high-point peak coordinates in a processing queue according to the sorting order, and implements different fixed-point fire control programs, including: When the number of pending queues is below a preset threshold, the central controller sends several first-point fire-fighting commands sequentially, sorted from highest to lowest by peak coordinates. This causes the PLC to control the mobile fire-fighting device to execute several arrival and extinguishing procedures, followed by scanning and extinguishing procedures, based on the peak coordinates. These procedures include: The PLC controls the stepper motor to drive the mobile fire-fighting device to move according to the first fixed-point fire command. During the movement, the PLC uses the positioning sensor in the fixed plate as a reference to perform closed-loop position control, accurately reaching the high point peak coordinates, and controls the wide-angle fan-shaped sprinkler head to open and spray water to extinguish the fire. After the water spraying continues for a set duration, the PLC controls the second electric valve to close to stop the water spraying program of the arrival and fire extinguishing procedure, and starts to implement the scanning and fire extinguishing procedure. After the scanning and fire extinguishing procedure is completed, the PLC sends a scanning fire extinguishing implementation end signal to the central controller. After receiving the scanning fire extinguishing implementation end signal, the central controller continues to send the next first fixed-point fire command, including the next high point peak coordinates, in the waiting queue according to the order from high to low. This continues until the first fixed-point fire program for all high point peak coordinate positions in the waiting queue has been processed. Furthermore, when the number of pending queues is not less than a preset threshold, the central controller sends multiple second fixed-point fire commands sequentially according to the peak coordinates of multiple high points from high to low. This causes the PLC to control the mobile fire-fighting device to execute multiple arrival and extinguishing procedures according to the peak coordinates of the high points, including: The PLC of the mobile fire-fighting device receives the second fixed-point fire-fighting command and, after implementing the judgment arrival and fire extinguishing procedure for a set time, controls the wide-angle fan-shaped nozzle to stop spraying water to extinguish the fire. Then, when the infrared flame sensor detects that the flame radiation intensity has dropped to a preset low intensity threshold or that the flame radiation intensity cannot be detected, it sends a fixed-point fire-fighting implementation end signal to the central controller. After receiving the fixed-point fire-fighting implementation end signal, the central controller, based on the fixed-point fire extinguishing sequence corresponding to the peak coordinates of multiple high points in the queue to be processed, continues to send the second fixed-point fire-fighting command, including the peak coordinates of the next highest peak intensity, to the PLC, so that it implements the judgment arrival and fire extinguishing procedure for the next high point peak coordinate, until the second fixed-point fire-fighting procedure for all peak coordinates of all high points in the queue to be processed is completed. The central controller executes a cyclic control program, including: after the central controller has processed the first fixed-point fire protection program / second fixed-point fire protection program based on the peak coordinates of all high points in the queue, it sends a mobile monitoring instruction to the PLC again, so that the PLC repeats the mobile monitoring program and the subsequent interactive processing program with the central controller, and executes the control implementation of the first fixed-point fire protection program / first fixed-point fire protection program as needed, until the mobile fire protection device can no longer detect the infrared flame radiation intensity when implementing the mobile monitoring program, ending all its mobile fire protection programs, and sending a no-open flame signal to the central controller.

6. The interactive control system for warehouse fire monitoring and fire fighting according to claim 5, characterized in that: The wide-angle fan-shaped nozzle and infrared flame sensor are mounted on a single-degree-of-freedom pan-tilt unit on the mobile fire-fighting device and fixed perpendicular to the same orientation of the pan-tilt unit. They are used in the scanning and extinguishing procedures implemented by the mobile fire-fighting device within the fixed-point fire control program implemented by the central controller, including: After the PLC control implements the arrival and fire extinguishing procedure and continues for a preset time, the water spraying stops, and then the single-degree-of-freedom pan-tilt unit immediately performs the scanning and fire extinguishing procedure, including: The PLC controls the horizontal symmetrical swing of a single-degree-of-freedom gimbal by setting the spray angle based on the vertical range coverage of the wide-angle fan-shaped nozzle, and continuously monitors the flame radiation intensity through an infrared flame sensor to implement the scanning procedure. When the PLC receives the signal of flame radiation intensity detected by the infrared flame sensor, it immediately controls the single-degree-of-freedom gimbal to stop swinging and simultaneously controls the wide-angle fan-shaped nozzle to spray water to extinguish the fire in the direction directly in front of the gimbal, so as to implement the fire extinguishing procedure. After the wide-angle fan-shaped nozzle executes the fire extinguishing program for the set duration, the PLC controls the wide-angle fan-shaped nozzle to stop spraying water and continues to perform scanning and fire extinguishing programs through the single-degree-of-freedom pan-tilt unit. After the infrared flame sensor in several scanning programs fails to detect the flame radiation intensity, the PLC determines that the peak coordinate of the target high point has been successfully extinguished and sends a scanning fire extinguishing implementation end signal to the central controller to complete the scanning and fire extinguishing program. In addition, it also includes: the central controller receiving the signal that the scanning fire protection implementation has ended, extracting the next high point peak coordinate from the queue to be processed, issuing a new fixed-point fire protection command, controlling the mobile fire protection device to implement a new fixed-point fire protection control program, until the fixed-point fire protection control program is implemented for all high point peak coordinates in the queue to be processed.

7. The interactive control system for warehouse fire monitoring and fire fighting according to claim 6, characterized in that: If the mobile fire-fighting device does not receive flame radiation intensity monitored by the infrared flame sensor during the execution of the mobile monitoring program under PLC control, the stepper motor of the drive device will reverse to drive the mobile fire-fighting device back to the head of the fixed component. During the process, the flame radiation intensity during the movement will be monitored in real time through the mobile monitoring program, and the PLC will implement the peak recording program, run the peak monitoring program, and upload the corresponding results to the central controller to control the implementation of the fixed-point fire control program. After the central controller completes the fixed-point fire control program based on the peak coordinates of all high points in the queue to be processed, it continues to receive smoke concentration monitoring data from smoke sensors for the fire monitoring sub-zones, processes and controls the wide-angle water mist nozzle network device to implement the smoldering fire suppression program, and processes and controls the mobile fire suppression device to implement the mobile monitoring program, arrival judgment and extinguishing program, and scanning and extinguishing program.

8. The interactive control system for warehouse fire monitoring and fire fighting according to claim 7, characterized in that: The mobile fire-fighting device is located at the symmetrical center of the aisle, with single-degree-of-freedom pan-tilt units and their attached infrared flame sensors and wide-angle fan-shaped nozzles symmetrically configured on both sides of the fire monitoring zones. These are positioned vertically at the center of the shelf, and the device independently implements mobile monitoring procedures, arrival and fire extinguishing procedures, and scanning and fire extinguishing procedures for the symmetrical fire monitoring zones on both sides, including: The PLC establishes a left-side logic management block and a right-side logic management block for the single-degree-of-freedom pan-tilt units on both sides of the mobile fire-fighting device, as well as the infrared flame sensors and wide-angle fan-shaped sprinklers on them, and manages them independently. The central controller establishes a binding relationship between the left-side logic management block and the right-side logic management block of the mobile fire-fighting device's PLC and the control modules of the left and right fire supervision zones, respectively, through logic programming, and stores the information in the central controller and the PLC. After the central controller terminates the smoldering fire-fighting based on the control module of any fire supervision zone, it sends a mobile supervision command to the corresponding PLC pointing to the left-side or right-side logic management block of the fire supervision zone according to the binding relationship. This enables the PLC to control the corresponding logic management block to implement the mobile monitoring program, arrival judgment and fire extinguishing program, and scanning and fire extinguishing program on the corresponding side according to the binding relationship.

9. An interactive control system for warehouse fire monitoring and fire fighting as described in claim 8, characterized in that: The central controller is configured with conflict priority control procedures for the PLC when implementing movement monitoring, arrival judgment and fire extinguishing procedures, and scanning and fire extinguishing procedures for the fire monitoring zones on both sides, including: The PLC receives a mobile monitoring command from the central controller for a fire monitoring zone on one side of the corridor, such as the left side. While controlling the mobile fire suppression system to implement the mobile monitoring / arrival and extinguishing / scanning and extinguishing procedures on the left side, if the smoke concentration in any sub-zone of the fire monitoring zone on the other side exceeds a preset threshold, it sends several smoldering fire suppression commands to the control module of the wide-angle water mist sprinkler network on the right side to implement several smoldering fire suppression procedures. Simultaneously, after the central controller has implemented the mobile monitoring procedure based on the mobile fire suppression system and has the structured recorded data, it sends the first fixed-point fire suppression command / the second... After the two fixed-point fire-fighting instructions are processed by the first fixed-point fire-fighting procedure / second fixed-point fire-fighting procedure based on the peak coordinates of all high points in the corresponding pending queue, and when no infrared flame radiation intensity is detected during the implementation of the mobile monitoring procedure and a no-open flame signal is sent to the central controller, the central controller stops sending mobile monitoring instructions to the left logic management block of the PLC. After the smoldering fire-fighting procedure of the right fire monitoring zone is completed, the central controller then sends mobile monitoring instructions to the right logic management block of the PLC, either subsequently or simultaneously, and begins to implement the mobile monitoring procedure, arrival judgment and fire extinguishing procedure, and scanning and fire extinguishing procedure for the right fire monitoring zone. Furthermore, the central controller continuously monitors the smoke monitoring data of the sub-zone in the left fire monitoring zone to continue to implement several smoldering fire suppression procedures in the left fire monitoring zone. It also continuously / cyclically controls the mobile fire suppression of the two opposing fire monitoring zones through the implementation of conflict priority control procedures until the smoldering and open flame fire situations in the two fire monitoring zones are resolved.

10. An interactive control system for warehouse fire monitoring and fire suppression as described in claim 9, characterized in that: The wide-angle water mist nozzle network device includes a control module, a main water supply pipe, a water distribution network, multiple branch pipes and a first electric valve connected to the branch pipes, and wide-angle fan-shaped water mist nozzles; Each fire supervision zone is equipped with a water distribution network, and each sub-zone is equipped with a branch pipe. An independent electric water valve, i.e., the first electric valve, is installed at a preset position on the branch pipe, and a wide-angle fan-shaped water mist nozzle with a specific tilt angle and sufficient spray angle is installed at the end to achieve full coverage of water mist spraying in the horizontal and vertical range of the sub-zone. All zoned water distribution networks are connected to the main water supply pipe pressurized by a self-priming pump; the fire monitoring zones are equipped with wide-angle fan-shaped water mist nozzles with appropriate flow rates and spray angles according to the horizontal and vertical range of each sub-zone, covering the vertical and horizontal range of the sub-zone; Two sets of the wide-angle water mist nozzle network device are configured above any aisle, located on both sides of the mobile fire-fighting device and facing the fire supervision zones of the two side shelves respectively. Each set of the wide-angle water mist nozzle network device is equipped with multiple wide-angle fan-shaped water mist nozzles that spray water mist onto each sub-zone of the fire supervision zone and cover the vertical and horizontal range of the sub-zone. The wide-angle fan-shaped nozzle of the mobile fire-fighting device is connected to the water distribution network or the main water supply pipe via a flexible water pipe. The wide-angle fan-shaped nozzle is connected to a rigid water pipe and a second electric valve is installed between the flexible water pipe and the PLC. When the mobile fire-fighting device is controlled by the PLC to perform the water spraying process in the judgment arrival and fire extinguishing procedure and the scanning and fire extinguishing procedure, the second electric valve is controlled to open and spray water. The main water supply pipe is pressurized and connected to a large-capacity water well via a self-priming pump. When any wide-angle fan-shaped nozzle or wide-angle fan-shaped water mist nozzle is opened via the corresponding second electric valve and first electric valve, water is drawn from the large-capacity water well by the self-priming pump to spray water and mist.

11. An interactive control system for warehouse fire monitoring and fire suppression as described in claim 10, characterized in that: The integrated interactive system also includes an intelligent interactive terminal at the interactive end, which wirelessly connects to the central controller through its internal terminal controller and exchanges signals and data; The integrated interactive system also configures multiple surveillance cameras on the shelves placed on both sides of the warehouse aisle to cover the monitoring area. The surveillance cameras are wirelessly connected to the intelligent interactive terminal, which can select to view the monitoring images of any surveillance camera to implement remote supervision. When the smoke concentration detected by the smoke sensor exceeds a preset threshold, the central controller controls the wide-angle water mist nozzle network device to start and end the smoldering fire suppression procedure, controls the mobile fire suppression device to start and end the fixed-point fire suppression control procedure, and generates all / part of the corresponding alarm information and sends it to the intelligent interactive terminal when it receives the scanning fire suppression end signal, the fixed-point fire suppression end signal, and the no open flame signal. The intelligent interactive terminal includes a display module and an alarm module, which receive corresponding alarm information and display it through the display module, and provide alarm prompts through the alarm module. The terminal controller and central controller of the intelligent interactive terminal are respectively equipped with 4G and 5G communication modules and are wirelessly connected through 4G and 5G networks to send and receive data and signals.

12. The interactive control system for warehouse fire monitoring and fire fighting according to claim 11, characterized in that: The warehouse is equipped with an exhaust ventilation system, including: The warehouse has a cut-out area in the wall, and an exhaust fan is installed in the cut-out area. The exhaust fan is connected to the central controller through a switching circuit. When the smoke concentration detected by the smoke sensor exceeds a preset threshold, or when any of the fire handling procedures such as smoldering fire prevention procedure, movement monitoring procedure, arrival judgment and extinguishing procedure, and scanning and extinguishing procedure are executed, the central controller sends a high-level signal to the switching circuit and controls the exhaust fan to work to remove smoke and high-temperature gas from the warehouse.

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