Fire extinguisher displacement monitoring device and use method thereof

Abstract

The invention discloses a fire extinguisher displacement monitoring device and a use method thereof, and relates to the technical field of instrument monitoring, the fire extinguisher displacement monitoring device comprises a device base, the upper end of the device base is provided with two embedding ports, each embedding port is internally provided with a placing cavity, and each placing cavity is internally provided with a clamping monitoring assembly; a driving assembly is movably connected to the clamping monitoring assembly, fire extinguishers are inserted into the clamping monitoring assembly and the driving assembly, and a communication module and a control unit are further arranged in the device base. The sensor module of the device integrates a position detection unit and a displacement detection unit, and is different from most schemes depending on a single gravity sensor, whether the fire extinguisher is located at a designated position or not is monitored in real time through the position detection unit, and the displacement detection unit detects the moving behavior and posture change of the fire extinguisher; and a control unit is combined to carry out fusion algorithm collaborative analysis on the two data, so that normal vibration such as environment vibration and artificial displacement can be accurately distinguished.

Description

Technical Field

[0001] The present invention relates to a displacement monitoring device for a fire extinguisher and a method for using the same. Background Art

[0002] In the field of fire safety, as an important emergency device, the daily management and status monitoring of fire extinguishers are crucial. Traditional fire extinguisher management mainly relies on manual inspections, which have problems such as low efficiency, high missed inspection rates, and inability to perceive abnormalities in real time. Some existing technologies attempt to achieve fire extinguisher status monitoring through sensors. For example, pressure sensors are used to detect abnormal pressures in fire extinguishers, or positioning modules are used to track the positions of devices. However, existing technologies still have significant defects; Most solutions rely on a single sensor. For example, gravity sensing is used to determine whether a fire extinguisher has been moved, making it difficult to distinguish normal vibrations, such as environmental vibrations and human displacements, resulting in a high false alarm rate. Moreover, it is impossible to accurately determine whether the fire extinguisher has deviated from the preset position, the alarm logic is single, and the data interoperability is weak. At the same time, due to the unreasonable design of the fixed structure of the non-invasive base, the stability of the fire extinguisher during placement is insufficient, and it is prone to tilting or sliding during carrying or moving, which not only affects the monitoring accuracy of the sensor but may also cause false alarms due to the tipping of the fire extinguisher. The present invention proposes a displacement monitoring device for a fire extinguisher and a method for using the same to solve the above problems. Summary of the Invention

[0003] The purpose of the present invention is to provide a displacement monitoring device for a fire extinguisher and a method for using the same to solve the problems in the above background art that most solutions rely on a single sensor, such as using gravity sensing to determine whether a fire extinguisher has been moved, making it difficult to distinguish normal vibrations, such as environmental vibrations and human displacements, resulting in a high false alarm rate, and being unable to accurately determine whether the fire extinguisher has deviated from the preset position.

[0004] To achieve the above object, the present invention provides the following technical solution: A displacement monitoring device for a fire extinguisher, comprising a device base. Two embedding openings are provided at the upper end of the device base, and placement cavities are provided in the embedding openings. A clamping and monitoring assembly is installed in the placement cavity, a driving assembly is movably connected to the clamping and monitoring assembly, a fire extinguisher is inserted into the clamping and monitoring assembly and the driving assembly, and a communication module and a control unit are further provided in the device base; The clamping and monitoring assembly includes a sensor module. The sensor module includes a position detection unit and a displacement detection unit. The position detection unit is a photoelectric sensor that real-time monitors whether the fire extinguisher is in a designated position; The displacement detection unit is a gyroscope that detects the movement behavior and attitude change of the fire extinguisher; The control unit is connected to the sensor module, and the communication module is connected to the control unit to real-time upload alarm data and periodic heartbeat data and transmit them through an open platform protocol; The device base also includes an alarm sensor, integrated in the control unit, which triggers local audible and visual alarms and remote notifications according to alarm instructions.

[0005] As an improvement of the above technical solution, the alarm sensor is a multi-mode output component, supporting audible and visual warnings, SMS push, and platform pop-up alarms, and the alarm rules support a hierarchical response strategy.

[0006] As an improvement of the above technical solution, the data of the position detection unit and the displacement detection unit are collaboratively analyzed through a fusion algorithm to distinguish normal vibrations and abnormal displacement events.

[0007] As an improvement of the above technical solution, the device base is built-in with a backup power module, which automatically switches the power supply when the external power is interrupted.

[0008] As an improvement of the above technical solution, the clamping monitoring component includes an annular mounting bracket arranged in the placement cavity, a base mounted in the annular mounting bracket, a plugging cavity opened at the middle position of the base, a sliding rod opened in the base, a slider slidably connected to the sliding rod, and a return spring connected in the sliding rod; wherein the sensor module is arranged in the slider.

[0009] As an improvement of the above technical solution, four groups of sliding rods are arranged in a surrounding manner in the base, and each group of sliding rods is slidably connected with a group of sliders and return springs, and the upper end of the base is rotatably connected with a driving component.

[0010] As an improvement of the above technical solution, the inner end wall of the slider is set to an arc surface matching the fire extinguisher, and the sensor module is arranged in the arc end surface of the slider.

[0011] As an improvement of the above technical solution, the driving component includes a rotating plate rotatably connected to the upper end of the base, a handle mounted on the outer wall of the rotating plate, an annular groove arranged in the rotating plate, a first rotating hole opened in the rotating plate, a first rotating shaft rotatably connected in the first rotating hole, a push rod hinged to one end of the first rotating shaft, a second rotating hole opened at the other end of the push rod, and a second rotating shaft hinged to the second rotating hole and fixed on the outer wall of the slider.

[0012] As an improvement of the above technical solution, four groups of push rods are connected in a surrounding manner in the rotating plate, and the push rods push the sliders to slide in the sliding rods, causing the return springs to deform.

[0013] The present invention also provides a technical solution: a usage method of a fire extinguisher displacement monitoring device: S1. Place the device base at a suitable fixed position to ensure its stability. A communication module, a control unit, and a backup power module are already built into the device base, and the internal wiring and basic configuration of each module are default completed. After turning on the device power, the control unit starts to load the preset parameters, and the sensor module automatically conducts self-check to ensure the normal function of each sensor. At the same time, the communication module attempts to connect to the NB-IoT network. According to the relevant settings requirements for NB-IoT network access, complete the network connection process. If the connection is successful, prepare for subsequent data transmission and interaction. If the connection fails, feedback the connection exception information through a specific indicator light or other prompt methods to facilitate the operation and maintenance personnel to troubleshoot problems. Long press the configuration key on the control unit for [X] seconds to enter the calibration mode. Place the fire extinguisher at the specified position in the placement cavity of the upper insertion port of the device base. At this time, the position detection unit automatically records the position of the fire extinguisher, completes the sensor calibration, and exits the calibration mode.

[0014] S2. Rotate the handle in the driving assembly. The handle drives the rotating plate to rotate on the base. When the rotating plate rotates, the four groups of push rods connected in a surrounding manner inside it rotate synchronously. The four groups of push rods push the four groups of sliders hinged to them to slide inside the sliding rods in the base, so that the sliders slide outwards against the elastic force of the return spring until there is enough space in the inner end of the slider and the insertion cavity to place the fire extinguisher. Place the fire extinguisher in the insertion cavity to ensure stable placement. Release the handle, and the return spring generates a restoring force due to its own elasticity, pushing the slider to slide inwards. Finally, the inner end wall of the slider closely fits the outer wall of the fire extinguisher, clamping and fixing the fire extinguisher from multiple directions. At this time, the sensor module set on the arc end face of the slider contacts the outer wall of the fire extinguisher and starts to monitor the state of the fire extinguisher in real time. The photoelectric sensor continuously monitors whether the fire extinguisher is in the specified position, and the gyroscope monitors whether the fire extinguisher has any movement behavior and attitude change. However, since the fire extinguisher is in a stable placement state, no abnormal data is generated temporarily.

[0015] S3. The magnetic sensor in the sensor module detects the magnetic induction intensity every 100 ms, continuously and precisely monitors whether the fire extinguisher is in the specified position, and the accelerometer monitors the movement state of the fire extinguisher in real time, continuously tracking the movement of the fire extinguisher. If the magnetic sensor's detection value exceeds the range of ±5 μT for 3 consecutive times, it is determined as "out of the specified position". If the accelerometer monitors that the triaxial acceleration continuously exceeds 0.8 g and the duration > 30 seconds, it is determined as "abnormal displacement event". The sensor module transmits the monitored data to the control unit in real time.

[0016] S4. After the control unit receives the data transmitted from the sensor module, calculate the displacement confidence level through the following formula: Among them, ΔM is the change rate of magnetic induction intensity, a(t) is the integral value of acceleration, α = 0.6 and β = 0.4 are weight coefficients. When C > 0.75, an alarm is triggered. If a short vibration, such as a cleaning touch, is detected, the control unit analyzes and judges the vibration-related data according to the preset rules. After confirming that it belongs to the short vibration situation, the alarm is blocked to avoid false alarms.

[0017] S5. Local alarm: If the control unit determines that the alarm condition is triggered, the buzzer integrated in the device base in the control unit sounds 3 times, 1 second each time, and at the same time the LED light switches to red flashing, reminding the nearby personnel of the abnormal status of the fire extinguisher in an audible and visual manner. Remote notification: The communication module pushes the alarm information to the management platform in real time through the NB-IoT module, and at the same time sends a text message to the preset mobile phone according to the preset text message sending configuration, ensuring that relevant management personnel can know the alarm situation in time. Heartbeat data: At 00:00 every day, the communication module uploads the device status to the management platform through the NB-IoT network, so that the operation and maintenance personnel can master the operation status of the device, discover potential problems in advance and carry out maintenance.

[0018] S6. The user rotates the handle, the handle drives the rotating plate to rotate, the rotating plate drives the four groups of push rods to rotate synchronously, the four groups of push rods push the sliders to slide in the slide rods, the four groups of sliders synchronously squeeze the return spring to deform, and the inner ends of the sliders are separated from the outer wall of the fire extinguisher. At this time, the sensor module arranged in the slider monitors the separation from the outer wall of the fire extinguisher and triggers the warning program. The sensor module transmits the separation signal to the control unit. If the user continues to pull out the fire extinguisher from the insertion cavity, the displacement detection unit detects the movement behavior of the fire extinguisher and transmits the movement data to the control unit again. The control unit judges that the fire extinguisher has been taken out according to the received data. If this behavior does not conform to the preset rules, the control unit triggers the alarm process, the communication module uploads the alarm data, and the alarm sensor executes local audible and visual alarm and remote notification.

[0019] S7. When the external power supply is interrupted, the built-in backup power supply module in the device base automatically switches to supply power, ensuring that all modules of the device, including the sensor module, the control unit, the communication module, the alarm sensor, etc. continue to work normally, maintaining the monitoring and alarm functions for the fire extinguisher. If it is necessary to use the fire extinguisher in an emergency such as a fire, the user operates according to the above fire extinguisher removal steps. At this time, although the device will trigger an alarm due to the removal of the fire extinguisher, in an emergency, relevant personnel can handle the alarm according to the actual situation and use the fire extinguisher to extinguish the fire as soon as possible.

[0020] Compared with the prior art, the beneficial effects of the present invention are: 1. The sensor module of the device integrates a position detection unit (photoelectric sensor) and a displacement detection unit (gyroscope). Different from most solutions that rely on a single gravity sensor, the position detection unit is used to monitor in real time whether the fire extinguisher is in the specified position, and the displacement detection unit detects the movement behavior and attitude change of the fire extinguisher. Then, combined with the control unit, the data of the two are analyzed through a fusion algorithm. It can accurately distinguish normal vibrations such as environmental vibrations from human displacements. For example, in the normal vibrations existing in the daily environment, the control unit can judge through the algorithm that it is within the normal range and will not trigger an alarm. For abnormal human displacements, it can be determined and trigger the corresponding process in a timely and accurate manner, greatly reducing the false alarm rate.

[0021] 2. The design of the clamping monitoring component effectively solves the problem of unreasonable structure of the non-invasive base fixing. There are four groups of sliding rods arranged in a circular manner inside the base. A slider and a return spring are slidably connected inside each group of sliding rods. The inner end wall of the slider is set as an arc surface that fits the fire extinguisher. After placing the fire extinguisher in the insertion cavity and releasing the handle, the return spring pushes the slider to slide inward, and its arc-shaped inner end wall closely fits the outer wall of the fire extinguisher, firmly clamping the fire extinguisher from multiple directions. This design ensures the stability of the fire extinguisher when placed and is not prone to tilting or sliding during carrying or moving. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is a schematic diagram of the three-dimensional structure state of the present invention; Figure 2 is a schematic diagram of the internal three-dimensional structure state of the present invention; Figure 3 is a schematic diagram of the three-dimensional structure state of the clamping monitoring component and the driving component of the present invention; Figure 4 is an exploded schematic diagram of the three-dimensional structure of the clamping monitoring component and the driving component of the present invention; Figure 5 is an exploded three-dimensional structure schematic diagram of the clamping monitoring component of the present invention; Figure 6 is a schematic diagram of the three-dimensional structure of the driving component of the present invention.

[0023] In the figure: 1, device base; 2, embedding port; 3, placement cavity; 4, fire extinguisher; 5, clamping monitoring component; 51, annular mounting frame; 52, base; 53, insertion cavity; 54, slide rail; 55, slider; 56, return spring; 57, sensor module; 6, driving component; 61, rotating plate; 62, handle; 63, annular groove; 64, first rotation hole; 65, first rotating shaft; 66, push rod; 67, second rotation hole; 68, second rotating shaft. DETAILED DESCRIPTION OF THE INVENTION

[0024] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0025] Embodiment: As Figure 1-6 shown, this embodiment proposes a fire extinguisher displacement monitoring device, including a device base 1. Two embedding ports 2 are opened at the upper end of the device base 1. Placement cavities 3 are arranged in the embedding ports 2. A clamping and monitoring component 5 is installed in the placement cavity 3. A driving component 6 is movably connected to the clamping and monitoring component 5. A fire extinguisher 4 is inserted into the clamping and monitoring component 5 and the driving component 6. A communication module and a control unit are also provided in the device base 1; The clamping and monitoring component 5 includes a sensor module 57. The sensor module 57 includes a position detection unit and a displacement detection unit. The position detection unit is an optoelectronic sensor, which real-time monitors whether the fire extinguisher 4 is in a specified position; The displacement detection unit is a gyroscope, which detects the moving behavior and attitude change of the fire extinguisher 4; The control unit is connected to the sensor module 57, and the communication module is connected to the control unit, which real-time uploads alarm data and periodic heartbeat data and transmits them through an open platform protocol; An alarm sensor is also included in the device base 1, which is integrated into the control unit and triggers local audible and visual alarms and remote notifications according to alarm instructions. After receiving the data transmitted by the sensor module 57, the control unit calculates the displacement confidence level through the following formula: where ΔM is the magnetic induction intensity change rate, a(t) is the acceleration integral value, α = 0.6 and β = 0.4 are weight coefficients. When C > 0.75, an alarm is triggered. If a short vibration, such as a cleaning touch, is detected, the control unit analyzes and judges the vibration-related data according to the preset rules. After confirming that it belongs to the short vibration situation, the alarm is blocked to avoid false alarms; The alarm sensor is a multi-mode output component, which supports audible and visual warnings, SMS push and platform pop-up alarms. The alarm rules support a hierarchical response strategy. The data of the position detection unit and the displacement detection unit are analyzed and coordinated through a fusion algorithm to distinguish normal vibrations and abnormal displacement events. A backup power module is built into the device base 1 and automatically switches to power supply when the external power supply is interrupted; The clamping monitoring component 5 includes an annular mounting bracket 51 arranged in the placement cavity 3, a base 52 mounted in the annular mounting bracket 51, a plugging cavity 53 opened at the middle position of the base 52, a slide bar 54 opened in the base 52, a slider 55 slidably connected to the slide bar 54, and a return spring 56 connected in the slide bar 54. Among them, the sensor module 57 is arranged in the slider 55. A driving component 6 is rotatably connected to the upper end of the base 52. The driving component 6 includes a rotating plate 61 rotatably connected to the upper end of the base 52, a handle 62 mounted on the outer wall of the rotating plate 61, an annular groove 63 arranged in the rotating plate 61, a first rotating hole 64 opened in the rotating plate 61, a first rotating shaft 65 rotatably connected in the first rotating hole 64, a push rod 66 hinged to one end of the first rotating shaft 65, a second rotating hole 67 opened at the other end of the push rod 66, and a second rotating shaft 68 hinged to the second rotating hole 67 and fixed on the outer wall of the slider 55.

[0026] When the user needs to take out the fire extinguisher 4, the user rotates the handle 62, so that the handle 62 drives the rotating plate 61 to rotate on the base 52. The rotation of the rotating plate 61 drives the four groups of push rods 66 to rotate synchronously. The four groups of push rods 66 push the slider 55 to slide in the slide bar 54. The four groups of sliders 55 synchronously squeeze the return spring 56 to generate deformation. The inner end of the slider 55 is separated from the outer wall of the fire extinguisher 4. At this time, the sensor module 57 monitors the separation from the outer wall of the fire extinguisher 4 and starts the warning program. At this time, if the user pulls out the fire extinguisher 4 from the plugging cavity 53, the gyroscope detects the moving behavior of the fire extinguisher 4. Here, it should be noted that for sensor calibration: long-press the configuration key on the control unit for 3 seconds to enter the calibration mode, place the fire extinguisher 4 at the specified position, and the photoelectric sensor automatically records its position. Similarly, when the fire extinguisher 4 needs to be placed in the plugging cavity 53, just rotate the handle 62 to make the four groups of sliders 55 slide outwards, and then place the fire extinguisher 4 in the plugging cavity 53. At this time, loosen the handle 62. At this time, the restoring force generated by the elasticity of the return spring 56 itself pushes the slider 55 to restore. Finally, the inner end of the slider 55 clamps the outer wall of the fire extinguisher 4 to form a fixation.

[0027] It should be noted that four groups of sliding rods 54 are arranged in a surrounding manner inside the base 52. A slider 55 and a return spring 56 are slidably connected inside each group of sliding rods 54. The four groups of sliding rods 54, sliders 55 and return springs 56 arranged in a surrounding manner inside the base 52 can clamp and fix the fire extinguisher 4 from multiple directions. When the handle 62 is rotated, the four push rods 66 synchronously push the four sliders 55 to slide inside the sliding rods 54, so that the sliders 55 can uniformly apply pressure to the fire extinguisher 4, ensuring that the fire extinguisher 4 is stably fixed inside the insertion cavity 53 and preventing it from shaking or shifting inside the placement cavity 3. At the same time, the design of this multi-group structure also increases the stability and reliability of the device. Even if one group of sliding rods, sliders or return springs has problems, the other groups can still maintain the clamping effect on the fire extinguisher 4 to a certain extent; The inner end wall of the slider 55 is set as an arc surface matching the fire extinguisher 4. In order to better fit the shape of the fire extinguisher 4 and increase the contact area with the fire extinguisher 4, thereby improving the stability of clamping, a sensor module 57 is arranged inside the arc end surface of the slider 55, which is beneficial to the real-time monitoring of the fire extinguisher 4. When the slider 55 contacts the outer wall of the fire extinguisher 4, the sensor module 57 can accurately obtain the position information of the fire extinguisher 4 and data such as whether it moves and changes in attitude. For example, the position detection unit (photoelectric sensor) can monitor in real time whether the fire extinguisher 4 is in the specified position through the contact state between the slider 55 and the fire extinguisher 4; the displacement detection unit (gyroscope) can accurately detect the movement behavior and attitude change of the fire extinguisher 4 when the slider 55 moves with the fire extinguisher 4; Four groups of push rods 66 are connected in a surrounding manner inside the rotating plate 61 to correspond to the four groups of sliding rods 54 and sliders 55 to achieve synchronous drive. When the rotating plate 61 rotates, the push rods 66 push the sliders 55 to slide inside the sliding rods 54, causing the return spring 56 to deform, ensuring the consistency and coordination of the movement of the sliders 55. In this way, it can be ensured that when clamping or loosening the fire extinguisher 4, the sliders 55 in all directions can act simultaneously, making the operation smoother and more efficient. At the same time, the surrounding connection method also enables the driving force of the rotating plate 61 to be evenly transmitted to each push rod 66, avoiding the situation of uneven force.

[0028] A usage method of a fire extinguisher displacement monitoring device is as follows: S1. Place the device base 1 in a suitable fixed position to ensure that it is stable. The device base 1 has built-in communication modules, control units and backup power modules, and each module has completed internal line connection and basic configuration by default. Turn on the device power, the control unit starts to load preset parameters, and the sensor module automatically performs self-checking to ensure that each sensor functions normally. At the same time, the communication module attempts to connect to the NB-IoT network. According to the relevant setting requirements for NB-IoT network access, the network connection process is completed. If the connection is successful, it is ready for subsequent data transmission and interaction. If the connection fails, the abnormal connection information is fed back through a specific indicator light or other prompts to facilitate the operation and maintenance personnel to troubleshoot the problem. Press and hold the configuration key on the control unit for 3 seconds to enter the calibration mode. Place the fire extinguisher 4 in the designated position in the placement cavity 3 in the embedding port 2 at the upper end of the device base 1 (i.e., in the plug-in cavity 53). At this time, the position detection unit (photoelectric sensor) automatically records the position of the fire extinguisher 4, completes the sensor calibration, and exits the calibration mode.

[0029] S2. Rotate the handle 62 in the driving assembly 6. The handle 62 drives the rotating plate 61 to rotate on the base 52. When the rotating plate 61 rotates, the four groups of push rods 66 connected in a surrounding manner inside it rotate synchronously. The four groups of push rods 66 push the four groups of sliders 55 hinged thereto to slide in the sliders 54 in the base 52, so that the sliders 55 overcome the elastic force of the return springs 56 and slide outward until there is enough space between the inner end of the slider 55 and the plug-in cavity 53 to place the fire extinguisher 4. Place the fire extinguisher 4 in the plug-in cavity 53 to ensure that it is placed firmly. Release the handle 62 and reset. The positioning spring 56 generates a restoring force due to its own elasticity, pushing the slider 55 to slide inward, and finally the inner end wall of the slider 55 is tightly fitted against the outer wall of the fire extinguisher 4, clamping and fixing the fire extinguisher 4 from multiple directions. At this time, the sensor module 57 arranged in the arc-shaped end face of the slider 55 contacts the outer wall of the fire extinguisher 4 and starts to monitor the status of the fire extinguisher 4 in real time. The photoelectric sensor continuously monitors whether the fire extinguisher 4 is in the specified position, and the gyroscope monitors whether the fire extinguisher 4 has any movement and posture changes. However, since the fire extinguisher is in a stable placement state, no abnormal data is generated for the time being.

[0030] S3. The magnetic sensor in the sensor module 57 detects the magnetic induction intensity every 100ms, and continuously monitors whether the fire extinguisher is in the designated position. The accelerometer monitors the movement status of the fire extinguisher in real time and continuously tracks the movement of the fire extinguisher. If the magnetic sensor detects that the value exceeds the ±5μT range for three consecutive times, it is determined to be "out of the designated position". If the accelerometer detects that the three-axis acceleration exceeds 0.8g for a duration of >30 seconds, it is determined to be an "abnormal displacement event". The sensor module 57 transmits the monitoring data to the control unit in real time.

[0031] S4. After receiving the data from the sensor module 57, the control unit calculates the displacement confidence by the following formula: Among them, ΔM is the rate of change of magnetic induction intensity, a(t) is the integrated value of acceleration, α = 0.6 and β = 0.4 are weight coefficients. When C > 0.75, an alarm is triggered. If a short vibration, such as a cleaning touch, is detected, the control unit analyzes and judges the vibration-related data according to the preset rules. After confirming that it belongs to the short vibration situation, the alarm is blocked to avoid false alarms.

[0032] S5. Local alarm: If the control unit determines that the alarm condition is triggered, the buzzer integrated in the device base 1 sounds 3 times (1 second each time), and at the same time the LED light switches to red flashing, reminding nearby personnel of the abnormal status of the fire extinguisher by means of sound and light. Remote notification: The communication module pushes the alarm information (including timestamp, position deviation, acceleration data) to the management platform in real time through the NB-IoT module, and at the same time sends a text message to the preset mobile phone according to the preset text message sending configuration to ensure that relevant management personnel can be informed of the alarm situation in time. Heartbeat data: At 00:00 every day, the communication module uploads the device status (battery voltage, signal strength, sensor health) to the management platform through the NB-IoT network so that the operation and maintenance personnel can master the operation status of the device, discover potential problems in advance and carry out maintenance.

[0033] S6. The user rotates the handle 62. The handle 62 drives the rotating plate 61 to rotate. The rotating plate 61 drives the four groups of push rods 66 to rotate synchronously. The four groups of push rods 66 push the slider 55 to slide in the slide rod 54. The four groups of sliders 55 synchronously squeeze the return spring 56 to deform. The inner end of the slider 55 is separated from the outer wall of the fire extinguisher 4. At this time, the sensor module 57 arranged in the slider 55 monitors the separation from the outer wall of the fire extinguisher 4 and triggers the early warning program. The sensor module 57 transmits the separation signal to the control unit. If the user continues to take out the fire extinguisher 4 from the insertion cavity 53, the displacement detection unit (gyroscope) detects the movement behavior of the fire extinguisher 4 and transmits the movement data to the control unit again. The control unit judges that the fire extinguisher 4 has been taken out according to the received data. If this behavior does not conform to the preset rules (such as taking in non-emergency situations, etc.), the control unit triggers the alarm process. The communication module uploads the alarm data, and the alarm sensor executes local sound and light alarm and remote notification.

[0034] S7. When the external power supply is interrupted, the built-in backup power supply module in the device base 1 automatically switches to supply power to ensure that all modules of the device (including the sensor module 57, the control unit, the communication module, the alarm sensor, etc.) continue to work normally, maintaining the monitoring and alarm functions of the fire extinguisher 4. If it is necessary to use the fire extinguisher 4 in an emergency such as a fire, the user operates according to the above fire extinguisher taking-out steps. At this time, although the device will trigger an alarm due to the fire extinguisher being taken out, in an emergency, relevant personnel can handle the alarm according to the actual situation and use the fire extinguisher to extinguish the fire as soon as possible.

[0035] Although embodiments of the present invention have been shown and described, those of ordinary skill in the art will appreciate that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A displacement monitoring device for a fire extinguisher, characterized in that: The device comprises a device base (1), wherein the upper end of the device base (1) is provided with two embedding openings (2), each of the embedding openings (2) is provided with a placement cavity (3), a clamping monitoring component (5) is installed in the placement cavity (3), a driving component (6) movably connected to the clamping monitoring component (5), a fire extinguisher (4) is plugged into the clamping monitoring component (5) and the driving component (6), and a communication module and a control unit are also provided in the device base (1); The clamping monitoring component (5) comprises a sensor module (57), the sensor module (57) comprises a position detection unit and a displacement detection unit, the position detection unit is a photoelectric sensor, and monitors in real time whether the fire extinguisher (4) is in a specified position; The movement detection unit is a gyroscope, which detects the movement behavior and posture change of the fire extinguisher (4); The control unit is connected to the sensor module (57), and the communication module is connected to the control unit to upload alarm data and periodic heartbeat data in real time and transmit them through an open platform protocol; The device base (1) also includes an alarm sensor which is integrated into the control unit and triggers a local sound and light alarm and a remote notification according to an alarm instruction.

2. The displacement monitoring device for a fire extinguisher according to claim 1, characterized in that: The alarm sensor is a multi-mode output component that supports sound and light warnings, SMS push and platform pop-up alarms, and the alarm rules support hierarchical response strategies.

3. A displacement monitoring device for a fire extinguisher according to claim 1, characterized in that: The data of the position detection unit and the displacement detection unit are collaboratively analyzed through a fusion algorithm to distinguish normal vibration from abnormal displacement events.

4. A fire extinguisher displacement monitoring device according to claim 1, characterized in that: The device base (1) has a built-in backup power module which automatically switches power supply when the external power supply is interrupted.

5. The displacement monitoring device for a fire extinguisher according to claim 1, characterized in that: The clamping monitoring assembly (5) comprises an annular mounting frame (51) disposed in the placement cavity (3), a base (52) mounted in the annular mounting frame (51), an insertion cavity (53) disposed in the middle of the base (52), a sliding rod (54) disposed in the base (52), a slider (55) slidably connected to the sliding rod (54), and a return spring (56) connected in the sliding rod (54); wherein the sensor module (57) is disposed in the slider (55).

6. The displacement monitoring device for a fire extinguisher according to claim 5, wherein: Four groups of slide bars (54) are disposed in a surrounding manner inside the base (52), each group of slide bars (54) is slidably connected to a group of sliders (55) and a return spring (56), and the upper end of the base (52) is rotatably connected to a driving assembly (6).

7. An apparatus for monitoring the displacement of a fire extinguisher according to claim 5, wherein: The inner end wall of the slider (55) is arranged as an arc-shaped surface that matches the fire extinguisher (4), and a sensor module (57) is arranged in the arc-shaped end surface of the slider (55).

8. A displacement monitoring device for a fire extinguisher according to claim 6, characterized in that: The driving component (6) includes a rotating plate (61) rotatably connected to the upper end of the base (52), a handle (62) installed on the outer wall of the rotating plate (61), an annular groove (63) provided in the rotating plate (61), a first rotating hole (64) opened in the rotating plate (61), a first rotating shaft (65) rotatably connected in the first rotating hole (64), a push rod (66) hinged to one end of the first rotating shaft (65), a second rotating hole (67) opened at the other end of the push rod (66), and a second rotating shaft (68) hinged to the second rotating hole (67) and fixed to the outer wall of the slider (55).

9. The displacement monitoring device for a fire extinguisher according to claim 8, characterized in that: Four groups of push rods (66) are connected in a surrounding manner in the rotating plate (61), and the push rods (66) push the slider (55) to slide in the slide rod (54), causing the return spring (56) to deform.

10. The usage method of a fire extinguisher displacement monitoring device according to any one of claims 1-9, characterized in that: S1. Place the device base (1) at a suitable fixed position to ensure its stability. The communication module, control unit, and backup power module are already built into the device base (1), and each module has defaulted to complete the internal circuit connection and basic configuration. Turn on the device power supply, and the control unit starts to load the preset parameters. The sensor module automatically performs self-check to ensure that the functions of each sensor are normal. At the same time, the communication module attempts to connect to the NB-IoT network and completes the network connection process according to the relevant setting requirements for NB-IoT network access. If the connection is successful, it is ready for subsequent data transmission and interaction. If the connection fails, the connection exception information is fed back through a specific indicator light or other prompt methods to facilitate the maintenance personnel to troubleshoot problems. Long press the configuration key (3) on the control unit for seconds to enter the calibration mode. Place the fire extinguisher (4) at the specified position in the placement cavity (3) of the upper embedding port (2) of the device base (1). At this time, the position detection unit automatically records the position of the fire extinguisher (4) to complete the sensor calibration and exit the calibration mode. S2. Rotate the handle (62) in the rotation drive assembly (6). The handle (62) drives the rotation plate (61) to rotate on the base (52). When the rotation plate (61) rotates, the four groups of push rods (66) connected in a surrounding manner inside it rotate synchronously. When the four groups of push rods (66) rotate, they push the four groups of sliders (55) hinged to them to slide inside the slide rods (54) in the base (52), causing the sliders (55) to slide outwards against the elastic force of the return spring (56) until there is enough space in the insertion cavity (53) for the fire extinguisher (4). Place the fire extinguisher (4) in the insertion cavity (53) to ensure stable placement. Release the handle (62). The return spring (56) generates a restoring force due to its own elasticity and pushes the slider (55) to slide inwards. Finally, the inner end wall of the slider (55) closely fits against the outer wall of the fire extinguisher (4), clamping and fixing the fire extinguisher (4) from multiple directions. At this time, the sensor module (57) provided on the arc-shaped end face of the slider (55) contacts the outer wall of the fire extinguisher (4) and starts to monitor the status of the fire extinguisher (4) in real time. The photoelectric sensor continuously monitors whether the fire extinguisher (4) is in the designated position, and the gyroscope monitors whether the fire extinguisher (4) has any movement behavior and attitude change. However, since the fire extinguisher is in a stable placement state, no abnormal data is generated temporarily. S3. The magnetic sensor in the sensor module (57) detects the magnetic induction intensity every 100 ms to continuously and accurately monitor whether the fire extinguisher is in the designated position. The accelerometer monitors the movement state of the fire extinguisher (4) in real time and continuously tracks the movement of the fire extinguisher (4). If the magnetic sensor's detection value exceeds the range of ±5 μT for 3 consecutive times, it is determined as "out of the designated position". If the accelerometer monitors that the three-axis acceleration continuously exceeds 0.8 g and the duration > 30 seconds, it is determined as "abnormal displacement event". The sensor module (57) transmits the monitored data to the control unit in real time. S4. After receiving the data transmitted by the sensor module (57), the control unit calculates the displacement confidence level through the following formula: where ΔM is the magnetic induction intensity change rate, a(t) is the acceleration integral value, α = 0.6 and β = 0.4 are the weight coefficients. When C > 0.75, an alarm is triggered. If a short vibration is detected, such as a cleaning touch, the control unit analyzes and judges the vibration-related data according to the preset rules. After confirming that it belongs to the short vibration situation, the alarm is blocked to avoid false alarms. S5. Local alarm: If the control unit determines that the alarm condition is triggered, the buzzer integrated in the control unit in the device base (1) sounds 3 times, each time for 1 second, and at the same time the LED light switches to red flashing to remind the nearby personnel of the abnormal status of the fire extinguisher through sound and light. Remote notification: The communication module pushes the alarm information to the management platform in real time through the NB-IoT module, and at the same time, according to the preset SMS sending configuration, sends an SMS to the preset mobile phone to ensure that the relevant management personnel can know the alarm situation in time. Heartbeat data: At 00:00 every day, the communication module uploads the device status to the management platform through the NB-IoT network so that the operation and maintenance personnel can master the operation status of the device, discover potential problems in advance and carry out maintenance. S6. The user rotates the handle (62). The handle (62) drives the rotating plate (61) to rotate. The rotating plate (61) drives the four groups of push rods (66) to rotate synchronously. The four groups of push rods (66) push the sliders (55) to slide within the slide rods (54). The four groups of sliders (55) synchronously compress the return springs (56) to cause deformation. The inner ends of the sliders (55) are separated from the outer wall of the fire extinguisher (4). At this time, the sensor module (57) provided in the slider (55) monitors the separation from the outer wall of the fire extinguisher (4) and triggers the warning program. The sensor module (57) transmits the separation signal to the control unit. If the user continues to take out the fire extinguisher (4) from the insertion cavity (53), the displacement detection unit detects the movement behavior of the fire extinguisher (4) and transmits the movement data to the control unit again. The control unit determines that the fire extinguisher (4) has been taken out according to the received data. If this behavior does not conform to the preset rules, the control unit triggers the alarm process. The communication module uploads the alarm data, and the alarm sensor performs local sound and light alarm and remote notification. S7. When the external power supply is interrupted, the built-in backup power supply module of the device base (1) automatically switches to supply power to ensure that all modules of the device, including the sensor module (57), the control unit, the communication module, the alarm sensor, etc., continue to work normally, maintaining the monitoring and alarm functions for the fire extinguisher (4). If it is necessary to use the fire extinguisher (4) in case of an emergency such as a fire, the user operates according to the above steps for taking out the fire extinguisher. At this time, although the device will trigger an alarm due to the fire extinguisher being taken out, in case of an emergency, the relevant personnel can handle the alarm according to the actual situation and use the fire extinguisher to extinguish the fire as soon as possible.

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