Intelligent alarm module of fire extinguishing device

Abstract

The utility model relates to the technical field of fire extinguishing device detection alarm structures, in particular to an intelligent alarm module of a fire extinguishing device, which comprises a shell, an alarm module and an expansion module, the alarm module is arranged in the base, and the alarm module is used for monitoring the fire behavior of the environment and sending out an alarm signal to start an alarm on the alarm module; the expansion module receives an alarm signal sent by the alarm module and transmits the alarm signal to a fire alarm system host of the building, and the alarm module synchronously sends an electric control signal to the fire extinguishing device connected with the alarm module and starts the fire extinguishing device. The expansion module can be directly compounded to an existing alarm device, large-range adjustment is not needed, fire detection can be directly achieved, alarm signals are networked, meanwhile, a fire fighting device is started, the production cost is low, the structure is simple and reliable, and the detection effect is sensitive.

Description

Technical Field

[0001] The utility model relates to the technical field of fire extinguishing device detection alarm structure, in particular to an intelligent alarm module of a fire extinguishing device. Background Art

[0002] The alarm modules of existing fire extinguishing devices are mostly a combination of detectors and alarms, that is, the detectors detect the light, temperature or smoke in the environment to determine whether a fire has occurred in the environment. After determining that a fire has occurred, the control motherboard in the alarm module controls the alarm to emit a sound or light alarm, thereby reminding the people in the environment or the monitoring personnel outside the environment that a fire has occurred, and then quickly carrying out fire fighting work.

[0003] In the utility model patent with patent application number 202022127816.4, a building fire protection Internet of Things system alarm device is disclosed, which particularly relates to the field of bridge maintenance and construction technology. A solenoid valve is installed on the upper end of the fire extinguisher, and the solenoid valve is connected to the circuit board signal. A connecting pipe is fixed on the upper end of the solenoid valve. The upper end of the connecting pipe penetrates to the lower part of the fire alarm and is fixedly connected to the fire alarm. The upper end of the connecting pipe is connected to a transmission pipe. In this type of building fire protection Internet of Things system alarm device, when the alarm light and the alarm horn are working at the same time, the solenoid valve will open. At this time, the fire extinguishing agent in the fire extinguisher will be sprayed out from the nozzle along the solenoid valve, the connecting pipe, the transmission pipe and the discharge pipe, so that it can not only play an alarm role, but also has the function of extinguishing fire, thereby improving practicality and solving the problem that the current building fire protection Internet of Things system alarm device generally prompts through flashing lights and horn alarms, and does not have the ability to extinguish fires, resulting in general practicality.

[0004] Although the above technical solution specifically discloses an alarm device that can realize alarm and fire extinguishing device activation at the same time, this technical solution cannot be combined with the existing fire alarm device and needs to be redeveloped, and the structure is too complicated. Utility Model Content

[0005] In view of the above problems, the utility model provides an intelligent alarm module for a fire extinguishing device. By adding an expansion module on the basis of the existing smoke, temperature or light sensing alarm device, the expansion module can be directly integrated into the existing alarm device without large-scale adjustment. It can directly realize the detection of fire and network the alarm signal. At the same time, the fire-fighting device can be started. The production cost is low, the structure is simple and reliable, and the detection effect is sensitive.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] An intelligent alarm module for a fire extinguishing device, the intelligent alarm module comprising:

[0008] Housing, alarm module and expansion module;

[0009] The housing is cylindrical and includes an upper light-transmitting cover and a lower base, and an opening is provided at the bottom of the base;

[0010] The alarm module is arranged in the base, and the alarm module monitors the temperature, light waves or smoke particles of the environment, and sends out an alarm signal to activate the alarm on the alarm module;

[0011] The expansion module is arranged above the alarm module. The expansion module receives the alarm signal sent by the alarm module and transmits the alarm signal to the fire alarm system host of the building. Synchronously, the alarm module sends an electrical control signal to the connected fire extinguishing device to start the fire extinguishing device.

[0012] As an improvement, the alarm module also includes a detector, an alarm control mainboard and an alarm battery. The detector monitors the external environment through the opening. The detector and the alarm are respectively connected to the alarm control mainboard. The alarm battery supplies power to the detector and the alarm.

[0013] As an improvement, a start test button is provided on the alarm module.

[0014] As an improvement, the expansion module includes an LED indicator light, an expansion module mainboard and an expansion module battery. The LED indicator light is arranged at the light-transmitting cover, and the LED indicator light is connected to the expansion module mainboard. The expansion module mainboard is horizontally installed below the LED indicator light. The expansion module mainboard is connected to the LED indicator light, the alarm module, the mechanical impactor on the fire extinguishing device and the fire alarm system host through signals. The expansion module battery is installed below the expansion module mainboard, and the expansion module battery supplies power to the LED indicator light.

[0015] As an improvement, a wireless communication module is provided on the expansion module mainboard, and the wireless communication module is wirelessly connected to the mobile control terminal.

[0016] As an improvement, a manual controller is further included, and the manual controller is connected to the expansion module mainboard via infrared signals or radio frequency signals.

[0017] As an improvement, when the intelligent alarm module is on standby, the LED indicator light does not display; when the intelligent alarm module is testing self-inspection, the LED indicator light displays blue; when the intelligent alarm module alarms, the LED indicator light displays red.

[0018] As an improvement, several groups of the intelligent alarm modules are connected in series end to end via a first trigger connection line to form a closed-loop single-loop linkage trigger system, and each group of the intelligent alarm modules is grounded via a grounding wire.

[0019] As an improvement, several groups of the intelligent alarm modules are connected in series end to end through a first trigger connection line to form a closed-loop single-loop linkage trigger system. After every two groups of the intelligent alarm modules are connected in series in a series order to form an alarm unit, the signal input end of the intelligent alarm module located in the first position and the signal output end of the intelligent alarm module located in the last position are connected through the first trigger connection line, and the alarm units of two adjacent groups are connected through a second trigger connection line to form a closed-loop dual-loop linkage trigger system, and the intelligent alarm modules of each group are grounded through a grounding wire.

[0020] As an improvement, several groups of the intelligent alarm modules are connected in series end to end through a first trigger connection line to form a closed-loop single-loop linkage trigger system. After every two groups of the intelligent alarm modules are connected in series in a series order to form an alarm unit, the signal input end of the intelligent alarm module located in the first position and the signal output end of the intelligent alarm module located in the last position are connected through the first trigger connection line, and the alarm units of two adjacent groups are doubly connected through a second trigger connection line and a third trigger connection line to form a closed-loop dual-loop linkage trigger system. The intelligent alarm modules of each group are grounded through a grounding wire.

[0021] The beneficial effects of the utility model are:

[0022] (1) The utility model adds an expansion module to the existing smoke, temperature or light sensing alarm device. The expansion module can be directly integrated with the existing alarm device without large-scale adjustment. It can directly detect the fire and connect the alarm signal to the network. At the same time, the fire fighting device is activated. The production cost is low, the structure is simple and reliable, and the detection effect is sensitive.

[0023] (2) The alarm module and expansion module of the utility model are each equipped with a set of lithium batteries, which can operate for an extremely long standby time, so that the alarm module of the present application can be applied to various working conditions. Even when there is no power supply, the lithium battery of the alarm module can maintain the alarm module's working time of up to two years, which is long-lasting and reliable;

[0024] (3) The expansion module of the utility model is provided with an LED indicator light in conjunction with the setting of the expansion module mainboard, so that the alarm module and the expansion module have a standby test mode. After the intelligent alarm module has been working for a long time, the alarm module and the expansion module can be tested through the test mode to avoid failure of the alarm module and the expansion module;

[0025] (4) The utility model can connect several groups of intelligent alarm modules in series for fire detection in a large space. After one group of intelligent alarm modules detects a fire, the alarm signal can be transmitted among the series-connected intelligent alarm modules, thereby activating the fire extinguishing device in the entire large space to handle the fire, with accurate detection and timely response.

[0026] (5) The utility model can connect several groups of intelligent alarm modules in series to form a closed double-loop linkage trigger system, so that when a fire occurs, the intelligent alarm modules can smoothly transmit the alarm signal, and when the single-loop linkage of one group fails, the single-loop linkage of the other group can still transmit the alarm signal within the trigger system, which is very reliable and stable.

[0027] In summary, the utility model has the advantages of low production cost, sensitive detection, rapid response, safety and reliability, long standby time, etc., and is particularly suitable for the technical field of fire extinguishing device detection alarm structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 This is a schematic diagram of the side view structure of the housing of the utility model;

[0029] Figure 2 This is a schematic diagram of the three-dimensional structure of the shell of the utility model;

[0030] Figure 3 The schematic diagram of the internal signal transmission of the intelligent alarm module of the utility model Figure 1 ;

[0031] Figure 4 The schematic diagram of the internal signal transmission of the intelligent alarm module of the utility model Figure 2 ;

[0032] Figure 5 This is a schematic diagram of the self-check mode and working mode flow of the utility model;

[0033] Figure 6 This is a schematic diagram of the connection structure of the single-loop linkage trigger system of the utility model;

[0034] Figure 7 The schematic diagram of the connection structure of the dual-loop linkage trigger system of the utility model is shown in FIG. Figure 1 ;

[0035] Figure 8 The schematic diagram of the connection structure of the dual-loop linkage trigger system of the utility model is shown in FIG. Figure 2 .

[0036] In the figure: I, intelligent alarm module, V, alarm unit, 01, first trigger connection line, 02, signal input terminal, 03, signal output terminal, 04, second trigger connection line, 05, third trigger connection line, 06, ground wire, 1, shell, 11, light-transmitting cover, 12, base, 121, opening, 2, alarm module, 21, alarm, 22, detector, 23, alarm control mainboard, 24, alarm battery, 25, start test button, 3, expansion module, 31, LED indicator light, 32, expansion module mainboard, 321, wireless communication module, 33, expansion module battery, 5, manual controller. DETAILED DESCRIPTION

[0037] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0038] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0039] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0040] Embodiment 1:

[0041] like Figure 1-Figure 5 As shown, a fire extinguishing device intelligent alarm module, the intelligent alarm module 1 comprises:

[0042] Housing 1, alarm module 2 and expansion module 3;

[0043] The housing 1 is cylindrical and includes an upper light-transmitting cover 11 and a lower base 12. The bottom of the base 12 is provided with an opening 121.

[0044] The alarm module 2 is disposed in the base 12, and the alarm module 2 monitors the temperature, light waves or smoke particles of the environment, and sends out an alarm signal to activate the alarm 21 on the alarm module 2;

[0045] The expansion module 3 is arranged above the alarm module 2. The expansion module 3 receives the alarm signal sent by the alarm module 2 and transmits the alarm signal to the fire alarm system host of the building. Synchronously, the alarm module 2 sends an electrical control signal to the connected fire extinguishing device to start the fire extinguishing device.

[0046] Specifically, the alarm module 2 also includes a detector 22, an alarm control mainboard 23 and an alarm battery 24. The detector 22 monitors the external environment through the opening 121. The detector 22 can be a smoke detector, a temperature detector, a light wave detector, a gas detector or an infrared detector. The alarm 21 can be a sound alarm, a light alarm, etc. The detector 22 and the alarm 21 are respectively connected to the alarm control mainboard 23. The alarm control mainboard 23 consists of a microprocessor, a sensor interface, an alarm signal driving circuit and a signal output unit. The microprocessor is the core to perform data processing and control instructions. The sensor interface is used to connect the detector 22, the alarm signal driving circuit drives the alarm device, and the signal output unit outputs the alarm signal to the expansion module. The alarm battery 24 supplies power to the detector 22 and the alarm 21. The alarm battery 24 is a lithium battery, which can provide the alarm module 2 with a working power reserve of up to two years. The alarm module 2 is provided with a start test button 25. After the start test button 25 is pressed, the alarm control mainboard 23 on the alarm module 2 will send an alarm signal, causing the alarm 21 to emit an alarm sound, or an alarm light, and at the same time transmit the alarm signal to the expansion module 3.

[0047] Furthermore, the expansion module 3 includes an LED indicator light 31, an expansion module mainboard 32 and an expansion module battery 33. The LED indicator light 31 is arranged at the light-transmitting cover 11, and the LED indicator light 31 is connected to the expansion module mainboard 32. When the intelligent alarm module I is on standby, the LED indicator light 31 is not displayed. When the intelligent alarm module I is testing self-test, the LED indicator light 31 displays blue. When the intelligent alarm module I alarms, the LED indicator light 31 displays red. The switching between the working mode and the test mode is achieved through a manual controller. The manual controller is connected to the expansion module mainboard 32 through infrared signals or radio frequency signals, thereby achieving the switching between the test mode and the working mode. The manual controller has 2 buttons (mode switching: working mode, test mode), 1 LED indicator light, and a power switch. When the working mode button is pressed, the expansion module switches to the working mode, and the expansion module LED lights up red for 2 seconds. When the test mode button is pressed, the expansion module switches to the test mode, and the expansion module LED lights up blue for 2 seconds.

[0048] The expansion module mainboard 32 is horizontally installed below the LED indicator light 31. The expansion module mainboard 32 is connected to the LED indicator light 31, the alarm module 2, the mechanical impactor on the fire extinguishing device and the fire alarm system host through signals. The expansion module mainboard 32 includes a CPU, a signal input unit, a signal output unit and a storage unit. The CPU is responsible for data processing and calculation, analyzing and judging various signals, and at the same time determining whether the expansion module is in working mode or test mode according to preset instructions, and sending corresponding alarm signals according to the corresponding mode. The signal input unit is used to receive alarm signals, the signal output unit outputs alarm signals to the outside, and the storage unit is used to store data.

[0049] Regarding the switching between the working mode and the test mode, specifically, in the working state, the expansion module receives the alarm signal sent by the alarm module, and the expansion module sends a firing command to the firing cap (output voltage DC24V) on the fire-fighting device, and the fire-extinguishing device starts (the working process of the fire-extinguishing device receiving the firing command, refer to the patent document with application number 2024214103623, and the application name is a miniature direct-mounted magnetic fire-fighting extinguishing device), and at the same time, the expansion module mainboard sends a transfer dry contact signal to the LED indicator light, and the LED indicator light stays red after receiving the command. There is also a manual mode, that is, the manual controller sends an alarm signal to the expansion module, and the expansion module sends a firing command to the firing cap (output voltage DC24V) on the fire-fighting device, and the fire-fighting device starts, and at the same time, the expansion module mainboard sends a transfer dry contact signal to the LED indicator light, and the LED indicator light stays red after receiving the command.

[0050] In the detection mode, the expansion module receives the alarm signal from the alarm module, and the expansion module sends a dry contact transfer signal to the LED indicator. The LED indicator lights up blue for 10 seconds, indicating that the expansion module is normal. Note that at this time, the expansion module does not issue a firing command to the fire-fighting device. There is also a means mode. The expansion module receives the alarm signal from the manual controller, and the expansion module sends a dry contact transfer signal to the LED indicator. The LED indicator lights up blue for 10 seconds, indicating that the expansion module is normal. Similarly, at this time, the expansion module does not issue a firing command to the fire-fighting device.

[0051] Correspondingly, the expansion module battery 33 is installed below the expansion module mainboard 32. The expansion module battery 33 is preferably a lithium battery, which can supply power to the LED indicator light 31 for up to two years.

[0052] In addition, a wireless communication module 321 is provided on the expansion module mainboard 32. The wireless communication module 321 communicates with external devices such as mobile phones, computers, controllers and other mobile control terminals, which is convenient for maintenance and inspection. The wireless communication module 321 can be one of the wireless communication modules such as RF2.4G communication module, Wi-Fi module, Bluetooth module, ZigBee module, etc.

[0053] Embodiment 2:

[0054] Embodiment 2 of the present invention is described with reference to Embodiment 1. The differences from Embodiment 1 are as follows:

[0055] like Figure 6 As shown, several groups of the intelligent alarm modules I are connected in series end to end through the first trigger connection line 01 to form a closed-loop single-loop linkage trigger system, and the intelligent alarm modules I of each group are grounded through a grounding wire.

[0056] For fire detection in large spaces, it is necessary to evenly distribute several groups of intelligent alarm modules I in the large space according to the detection range of the intelligent alarm module I, so as to cover the entire large space and achieve fire detection in the large space without blind spots. Moreover, after any group of intelligent alarm modules I detects a fire and sends out an alarm signal, the alarm signal can be directly transmitted in the entire single-loop linkage trigger system through the first trigger connection line 01, so that all the intelligent alarm modules I send out an alarm, and at the same time, the fire-fighting devices in the entire space are all started, and the fire-extinguishing agent is sprayed in the entire space.

[0057] Embodiment 3:

[0058] Embodiment 3 of the present invention is described with reference to Embodiment 2. The differences compared with Embodiment 2 are as follows:

[0059] like Figure 7As shown, several groups of the intelligent alarm modules I are connected in series end to end through the first trigger connection line 01 to form a closed-loop single-loop linkage trigger system. After every two groups of the intelligent alarm modules I in the series connection order are connected in series in sequence to form an alarm unit V, the signal input end 02 of the intelligent alarm module I located in the first position and the signal output end 03 of the intelligent alarm module I located in the last position are connected through the first trigger connection line 01, and the alarm units V of two adjacent groups are connected through the second trigger connection line 04 to form a closed-loop dual-loop linkage trigger system, and the intelligent alarm modules I of each group are grounded through the grounding wire 06.

[0060] In order to avoid the first trigger connection line 01 from breaking, resulting in a missing link in the originally closed single-loop linkage trigger system, resulting in the loss of alarm signals in the entire single-loop linkage trigger system, resulting in the inability to start the local intelligent alarm module I, and further resulting in the inability to start the local fire extinguishing device, the present embodiment further provides a second trigger connection line 04, and forms a double-loop linkage trigger system on the basis of the single-loop linkage trigger system, so that when the first trigger connection line 01 breaks, the alarm signal can still be transmitted within the double-loop linkage trigger system, so that at least half of the intelligent alarm modules I alarm, and at the same time trigger the corresponding number of fire extinguishing devices to start and extinguish the fire, thereby ensuring the basic fire extinguishing function and avoiding the situation where the fire cannot be extinguished in time due to the failure to transmit the alarm signal.

[0061] Embodiment 4:

[0062] Embodiment 4 of the present invention is described with reference to Embodiment 3, and the differences compared with Embodiment 3 are as follows:

[0063] like Figure 8 As shown, several groups of the intelligent alarm modules I are connected in series end to end through the first trigger connection line 01 to form a closed-loop single-loop linkage trigger system. After every two groups of the intelligent alarm modules I in the series connection order are connected in series in sequence to form an alarm unit V, the signal input end 02 of the intelligent alarm module I located in the first position and the signal output end 03 of the intelligent alarm module I located in the last position are connected through the first trigger connection line 01, and the alarm units V of two adjacent groups are doubly connected through the second trigger connection line 04 and the third trigger connection line 05 to form a closed-loop dual-loop linkage trigger system, and the intelligent alarm modules I of each group are grounded through the grounding wire 06.

[0064] On the basis of real-time example 3, a third trigger connection line 05 is set to further avoid the situation where the fire cannot be extinguished in time due to the failure to transmit the alarm signal, with multiple safeguards, which is safer and more reliable.

[0065] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An intelligent alarm module for a fire extinguishing device, characterized in that: The intelligent alarm module (I) comprises: Housing (1), alarm module (2) and expansion module (3); The housing (1) is cylindrical, and comprises an upper light-transmitting cover (11) and a lower base (12); an opening (121) is provided at the bottom of the base (12); The alarm module (2) is arranged in the base (12), and the alarm module (2) monitors the temperature, light waves or smoke particles of the environment, and sends out an alarm signal to activate the alarm (21) on the alarm module (2); The expansion module (3) is arranged above the alarm module (2), and the expansion module (3) receives the alarm signal sent by the alarm module (2), and transmits the alarm signal to the fire alarm system host of the building. Synchronously, the alarm module (2) sends an electrical control signal to the connected fire extinguishing device to start the fire extinguishing device.

2. The intelligent alarm module for fire extinguishing device according to claim 1, characterized in that: The alarm module (2) further comprises a detector (22), an alarm control mainboard (23) and an alarm battery (24); the detector (22) monitors the external environment through the opening (121); the detector (22) and the alarm (21) are respectively connected to the alarm control mainboard (23); and the alarm battery (24) supplies power to the detector (22) and the alarm (21).

3. The intelligent alarm module for fire extinguishing device according to claim 2, characterized in that: The alarm module (2) is provided with a test start button (25).

4. The intelligent alarm module for fire extinguishing device according to claim 2, characterized in that: The expansion module (3) comprises an LED indicator light (31), an expansion module mainboard (32) and an expansion module battery (33); the LED indicator light (31) is arranged at the light-transmitting cover (11); the LED indicator light (31) is connected to the expansion module mainboard (32); the expansion module mainboard (32) is horizontally installed below the LED indicator light (31); the expansion module mainboard (32) is connected to the LED indicator light (31), the alarm module (2), a mechanical impactor on a fire extinguishing device and a fire alarm system host through signals; the expansion module battery (33) is installed below the expansion module mainboard (32); the expansion module battery (33) supplies power to the LED indicator light (31).

5. The intelligent alarm module for fire extinguishing device according to claim 4, characterized in that: A wireless communication module (321) is provided on the expansion module mainboard (32), and the wireless communication module (321) is wirelessly connected to the mobile control terminal.

6. The intelligent alarm module for fire extinguishing device according to claim 4, characterized in that: Also includes: A manual controller (5), the manual controller (5) being wirelessly connected to the expansion module mainboard (32) via infrared signals or radio frequency signals.

7. The intelligent alarm module for fire extinguishing device according to claim 4, characterized in that: When the intelligent alarm module (I) is in standby mode, the LED indicator light (31) is not displayed; when the intelligent alarm module (I) is testing self-inspection, the LED indicator light (31) is displayed in blue; when the intelligent alarm module (I) is alarming, the LED indicator light (31) is displayed in red.

8. An intelligent alarm module for fire extinguishing device according to any one of claims 1 to 7, characterized in that: Several groups of the intelligent alarm modules (I) are connected in series via a first trigger connection line (01) to form a closed-loop single-loop linkage trigger system, and each group of the intelligent alarm modules (I) is grounded via a grounding line (06).

9. An intelligent alarm module for fire extinguishing device according to any one of claims 1 to 7, characterized in that: After a plurality of groups of the intelligent alarm modules (I) are connected head to tail in series via a first trigger connection line (01) to form a closed-loop single-loop linkage trigger system, after every two groups of the intelligent alarm modules (I) are connected in series in a series order to form an alarm unit (V), the signal input end (02) of the first intelligent alarm module (I) and the signal output end (03) of the last intelligent alarm module (I) are connected via the first trigger connection line (01), and the alarm units (V) of two adjacent groups are connected via a second trigger connection line (04) to form a closed-loop double-loop linkage trigger system, and each group of the intelligent alarm modules (I) are grounded via a grounding line (06).

10. An intelligent alarm module for fire extinguishing device according to any one of claims 1 to 7, characterized in that: After a plurality of groups of the intelligent alarm modules (I) are connected head to tail in series via a first trigger connection line (01) to form a closed-loop single-loop linkage trigger system, after every two groups of the intelligent alarm modules (I) are connected in series in series in a series order to form an alarm unit (V), a signal input end (02) of the first intelligent alarm module (I) and a signal output end (03) of the last intelligent alarm module (I) are connected via the first trigger connection line (01), and two adjacent groups of the alarm units (V) are doubly connected via a second trigger connection line (04) and a third trigger connection line (05) to form a closed-loop double-loop linkage trigger system, and each group of the intelligent alarm modules (I) are grounded via a grounding line (06).

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