A fire prevention control method

Abstract

The present disclosure relates to a fire prevention control method, the method comprising: operating a mode selection gear switch to be in an emergency starting mode gear to enter an emergency starting mode; after entering the emergency starting mode, closing an emergency switch in any one automatic control subunit to make the electromagnetic valve act, thereby realizing water spraying of the spraying device; operating the mode selection gear switch to be in an automatic mode gear to enter an automatic mode; after entering the automatic mode, in the automatic control subunit, when the smoke temperature detector detects smoke and the temperature reaches a temperature threshold, closing the switch of the smoke temperature detector to make the electromagnetic valve act, thereby realizing water spraying of the spraying device. The technical solution of the present application can realize precise, rapid and flexible fire prevention and control effect through the design of zoned control and dual-mode switching.

Description

Technical Field

[0001] This disclosure relates to the field of automation technology, and in particular to a fire control method. Background Technology

[0002] Buildings typically consist of multiple areas. In existing technological solutions, if a single area is not equipped with independent fire detection and extinguishing facilities, once a fire occurs in that area, due to the lack of timely and targeted early detection and extinguishing intervention, the fire will spread uncontrollably, potentially leading to the entire building being at fire risk and causing widespread safety accidents and property damage. Summary of the Invention

[0003] To overcome the problems existing in related technologies, this disclosure provides a fire control method to solve the above-mentioned problems.

[0004] According to a first aspect of the present disclosure, a fire prevention control method is provided, and the fire prevention control system includes: a plurality of automatic control subunits, an emergency control unit, a water pump control unit, and a fan control unit; The method includes: When the operating mode selection switch is in the emergency start mode position, the emergency start mode is entered. After entering the emergency start mode, any one of the emergency switches in the emergency control unit closes, which energizes the solenoid valve located in the same automatic control subunit as the emergency switch, and controls the water pump in the water pump control unit to start, and controls the fan in the fan control unit to start, for spraying and smoke extraction. Operate the mode selection switch to the automatic mode position to enter automatic mode; After entering automatic mode, for any automatic control subunit, when the smoke and temperature detectors in the automatic control subunit detect smoke and the temperature reaches the temperature threshold, the switch of the smoke and temperature detectors closes, causing the solenoid valve in the automatic control subunit to be energized and activated, thereby controlling the water pump in the water pump control unit to start and the fan in the fan control unit to start, for spraying and smoke prevention and exhaust.

[0005] The technical solutions provided by the embodiments of this disclosure may include the following beneficial effects: The technical solution of this application, by setting up multiple automatic control subunits, each of which is used for fire prevention in a single area, includes an emergency control unit that allows for manual fire extinguishing in emergency situations. The mode selection switch SA1 is used to select between emergency start mode and automatic mode; it has both emergency start mode and automatic mode settings. This achieves overall fire prevention control for complex situations in multiple areas. The fully functional fireproof box, with its multi-unit collaborative and dual-mode switching design, enables precise, rapid, and flexible fire prevention and control.

[0006] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit this disclosure. Attached Figure Description

[0007] The accompanying drawings, which are incorporated in and form a part of this specification, illustrate embodiments consistent with this disclosure and, together with the description, serve to explain the principles of this disclosure.

[0008] Figure 1 This is a flowchart illustrating a fire control method according to an exemplary embodiment; Figure 2 This is a block diagram illustrating a fire protection control system according to an exemplary embodiment; Figure 3 This is an electrical circuit diagram of a fire protection control system according to an exemplary embodiment; Figure 4 This is an electrical wiring diagram of another fire protection control system according to an exemplary embodiment; Figure 5 This is an electrical wiring diagram of another fire protection control system according to an exemplary embodiment; Figure 6 This is an electrical wiring diagram of another fire protection control system according to an exemplary embodiment; Figure 7 This is an electrical wiring diagram of another fire protection control system according to an exemplary embodiment; Figure 8 This is an electrical wiring diagram of another fire protection control system according to an exemplary embodiment; Figure 9 This is an electrical wiring diagram of another fire protection control system according to an exemplary embodiment; Figure 10 This is an electrical wiring diagram of another fire protection control system according to an exemplary embodiment; Figure 11 This is an electrical wiring diagram of another fire protection control system according to an exemplary embodiment. Detailed Implementation

[0009] See appendix Figure 1 and Figure 2 This application proposes a fire prevention control method. The fire prevention control system includes: multiple automatic control subunits 02, an emergency control unit, a near-end alarm unit, a remote alarm unit, a water pump control unit 03, and a fan control unit 04.

[0010] The method includes: In step S102, the operation mode selection switch is set to the emergency start mode position, and the emergency start mode is entered. After entering the emergency start mode, any one of the emergency switches in the emergency control unit closes, which energizes the solenoid valve located in the same automatic control subunit as the emergency switch, and controls the water pump in the water pump control unit to start, and controls the fan in the fan control unit to start, so as to perform spray blowing. In step S104, the mode selection switch is manipulated to the automatic mode position to enter automatic mode; After entering automatic mode, for any automatic control subunit, when the smoke and temperature detectors in the automatic control subunit detect smoke and the temperature reaches the temperature threshold, the switch of the smoke and temperature detectors closes, causing the solenoid valve in the automatic control subunit to be energized and activated, thereby controlling the water pump in the water pump control unit to start and the fan in the fan control unit to start, for spraying and smoke prevention and exhaust.

[0011] The temperature threshold mentioned above can be set flexibly. For example, it can be set to 60 degrees Celsius.

[0012] In this embodiment, the automatic control subunit 02 is equipped with a solenoid valve and a smoke and temperature detector. The smoke and temperature detector is used to detect smoke in the area. The smoke and temperature detector can also detect the ambient temperature.

[0013] In one embodiment, the smoke and heat detector switches on and off upon detecting smoke. In one embodiment, the smoke and heat detector switches on and off when a predetermined temperature threshold is detected. In one embodiment, the smoke and heat detector switches on and off when a predetermined temperature threshold is detected, and when smoke is detected.

[0014] The solenoid valve is used to control the sprinkler system in the area to spray water when the smoke and temperature detector detects smoke and the temperature reaches a temperature threshold.

[0015] In one embodiment, a smoke and temperature detector is used to detect temperature and smoke in the area it belongs to.

[0016] The aforementioned smoke and temperature detector includes: a temperature detection module for detecting the temperature of the surrounding environment; A smoke detection module is used to detect the concentration of smoke in the surrounding environment. The central control module of the smoke and heat detector is used to receive the ambient temperature and / or the ambient smoke concentration; and to determine whether the ambient temperature detected by the temperature detection module is greater than a temperature threshold; and / or whether the ambient smoke concentration detected by the smoke detection module is greater than a predetermined smoke concentration threshold; and when it is determined that the temperature is greater than the temperature threshold; and / or the smoke concentration is greater than the predetermined smoke concentration threshold, the switch in the smoke and heat detector is activated.

[0017] In some embodiments, the central control module of the smoke and temperature detector described above can be implemented using a microcontroller. The microcontroller outputs a high level to the subsequent relay coil drive circuit, which energizes the relay coil. The relay coil drive circuit can be implemented using a transistor.

[0018] In this embodiment, the solenoid valve can be installed on the water supply pipe of the sprinkler system in each area. Each area is equipped with at least one sprinkler head, and the operation of the solenoid valve can control the sprinkler head to spray water or stop spraying water.

[0019] The water pump control unit 03 is used to control the start and stop of the water pump; in any area, if smoke is detected, the water pump is started so that the sprinkler system in the area can spray water to extinguish the fire.

[0020] In this embodiment, a single water pump can be centrally installed to supply water to all areas.

[0021] The fan control unit 04 is used to control the start and stop of the fan; in any area, if smoke is detected, the fan is controlled to start so that smoke prevention and exhaust can be carried out in the area.

[0022] In this embodiment, at least one fan can be installed in each area to supply air and exhaust smoke in the event of a fire in that area.

[0023] Emergency control unit 05 is used for manual control in emergency situations to cause the sprinkler system in the area to release water.

[0024] See appendix Figure 3It also includes a mode selection switch SA1; the mode selection switch SA1 is used to select either emergency start mode or automatic mode; it has emergency start mode gear and automatic mode gear.

[0025] In this embodiment, when the mode selection switch SA1 is switched to the emergency start mode, the water pump is indirectly controlled by manually operating the emergency switch, the solenoid valve is activated, the sprinkler system sprays water to extinguish the fire, and the fan is activated to supply air and exhaust smoke.

[0026] When the mode selection switch SA1 is switched to the automatic mode, multiple automatic control sub-units 02 will perform automatic control. The relays of each automatic control sub-unit 02 will automatically activate, driving the water pump and the solenoid valve to spray water from the sprinkler system and drive the fan to supply air and exhaust smoke.

[0027] The technical solution of this application, by setting up multiple automatic control subunits, each of which is used for fire prevention in a single area, includes an emergency control unit that allows for manual fire extinguishing in emergency situations. The mode selection switch SA1 is used to select between emergency start mode and automatic mode; having both emergency start mode and automatic mode settings, it achieves comprehensive fire prevention control for complex situations in multiple areas, providing complete functionality.

[0028] This application, through its zoned control and dual-mode switching design, achieves precise, rapid, and flexible fire prevention and control. The specific effects are analyzed as follows: Multiple automatic control sub-units correspond to different sub-zones, each capable of independently monitoring the fire situation in its respective area. Once a fire is detected, targeted fire suppression can be initiated in that area, avoiding resource waste or inadequate local control caused by overall activation. The water pump control unit can supply water for fire suppression in a timely manner, while the fan control unit can simultaneously exhaust smoke and supply air, improving fire suppression efficiency and reducing the secondary impact of smoke on personnel or the environment. In automatic mode, the fire suppression process can be completed automatically through the sub-units without manual intervention, suitable for daily unattended operation or rapid response scenarios. In emergency activation mode, fire suppression can be manually controlled to handle special situations such as automatic system malfunctions or urgent fires, avoiding delays in response. Fault and fire alarms are comprehensive, with a fault alarm function that promptly alerts users to equipment problems, such as sub-unit malfunctions or water pump abnormalities. Whether on-site personnel or a remote monitoring center, they can be informed of the fire or equipment failure immediately, facilitating rapid repair or rescue arrangements.

[0029] See appendix Figure 4The emergency control unit 05 includes: an emergency switch parallel unit, an emergency relay KA3, and an emergency solenoid valve; the emergency relay KA3 includes an emergency relay switch and an emergency relay coil; the emergency solenoid valve includes an emergency solenoid valve coil and an emergency solenoid valve core; the emergency switch parallel unit is connected in series with the emergency relay coil; the emergency relay switch is connected in series with the emergency solenoid valve coil.

[0030] Upon entering the emergency start mode, any one of the emergency switches in the emergency control unit closes, energizing the solenoid valve located in the same automatic control subunit as the emergency switch. This includes: when any one of the emergency switches in the parallel emergency switch unit closes, the emergency relay coil is energized; the energized emergency relay coil drives the emergency relay switch to close; the closed emergency relay switch energizes the emergency solenoid valve coil; the energized emergency solenoid valve coil actuates the emergency solenoid valve core, causing the sprinkler device to spray water.

[0031] Each area's corresponding automatic control subunit is equipped with an emergency switch. For example, in the first control subunit, emergency switch 1 is labeled JJ1; in the second control subunit, emergency switch 2 is labeled JJ2; in the third control subunit, emergency switch 3 is labeled JJ3; in the fourth control subunit, emergency switch 4 is labeled JJ4; in the fifth control subunit, emergency switch 5 is labeled JJ5; in the sixth control subunit, emergency switch 6 is labeled JJ6; in the seventh control subunit, emergency switch 7 is labeled JJ7; in the eighth control subunit, emergency switch 8 is labeled JJ8; in the ninth control subunit, emergency switch 9 is labeled JJ9; and in the tenth control subunit, emergency switch 10 is labeled JJ10. Any two of the above emergency switches 1 through 10 are connected in parallel, forming an emergency switch parallel unit. For example, when emergency switch JJ1 is closed, the coil of emergency relay KA3 is activated, and the emergency relay KA3 switch closes, causing the fault alarm device to be activated and triggering a fault alarm. When the emergency relay KA3 switch is closed, it will also energize the coil of the emergency solenoid valve connected to it, causing the valve core of the emergency solenoid valve to actuate, thereby enabling the sprinkler system to spray water.

[0032] In some embodiments, see Appendix Figure 3 It also includes a second intermediate relay KA2, shown in the figure as smoke / temperature sensor relay 2. The second intermediate relay KA2 includes a second intermediate relay coil and a second intermediate relay switch. The second intermediate relay switch is used to close and conduct in automatic mode; and to open and close in emergency start mode.

[0033] In some embodiments, the first terminal 01 and the second terminal 02 of the mode selection switch SA1 are respectively connected to the neutral wire L1; the third terminal 03 and the fourth terminal 04 of the mode selection switch SA1 are respectively connected to the first terminal of the emergency relay KA3 coil and the first terminal of the second intermediate relay switch. The second terminal of the second intermediate relay switch is connected to the first terminal of the first intermediate relay KA1 coil; the second terminal of the first intermediate relay KA1 coil is connected to the live wire N1.

[0034] When the operation mode selection switch is in the emergency start mode position, entering the emergency start mode includes: manually rotating the rotary button to switch the first contact of the rotary button to the third terminal 03 and the second contact to the second terminal 02. In this case, the emergency relay KA3 is connected to the neutral line L1, so that the emergency relay coil KA3 is energized and the first intermediate relay coil KA1 is disconnected. When the operation mode selection switch is in the automatic mode position, entering the automatic mode includes: manually switching the first contact of the rotary button to the first terminal 01 and the second contact of the rotary button to the fourth terminal 04. In this case, the neutral line L1 connects the second intermediate relay switch and the first intermediate relay coil KA1, the emergency relay coil KA3 is de-energized, and the first intermediate relay coil is energized.

[0035] In this embodiment, when the mode selection switch SA1 is in automatic mode, the first terminal of the second intermediate relay switch can be considered directly connected to the neutral wire L1. When the automatic mode switch SA2 is closed, the second intermediate relay coil will be energized when any relay switch is closed. This energization of the second intermediate relay coil and its subsequent energization will cause the solenoid valve coil in subsequent circuits, such as the solenoid valve control circuit, to energize the solenoid valve core, thereby enabling the sprinkler head to spray water for fire extinguishing. The energization of the second intermediate relay coil and its subsequent energization will also connect the first intermediate relay KA1 coil, energizing it and causing its switch to operate. This energizes the solenoid valve coil connected to the first intermediate relay KA1, causing its valve core to operate. The energization of the second intermediate relay coil and its subsequent energization will also energize the connected remote alarm device, enabling remote alarm functionality (automatically dialing the owner's number).

[0036] In some embodiments, see Appendix Figure 5-6The first terminal of the second intermediate relay KA2 switch is connected to the neutral wire L1, and the second terminal is connected to the first terminal of the output relay KA4 coil. The second terminal of the output relay KA4 coil is connected to the live wire. The first terminal of the output relay KA4 switch is connected to the neutral wire L1, and the second terminal is connected to the first terminal of the water pump AC contactor KM coil, the first terminal of the fan AC contactor KM1 coil, and the first terminal of the external broadcasting device. The second terminals of the water pump AC contactor KM coil, the fan AC contactor coil, and the external broadcasting device are connected to the live wire N1. When the second intermediate relay KA2 switch is closed and conducting, the output relay KA4 coil is energized; when the output relay KA4 switch is activated, the water pump AC contactor coil, the fan AC contactor coil, and the external broadcasting device are energized, thereby causing the water pump AC contactor KM switch to activate, the water pump to operate; the fan AC contactor KM1 switch to activate, the fan to operate; and the external broadcasting device to operate. Specifically, when the water pump AC contactor KM switch is closed and conducting, the water pump is connected to the circuit and operates. A circuit breaker QF2 is also installed in the water pump control circuit. When the fan AC contactor KM1 switch is closed and conducting, the fan circuit is connected and the fan operates. A circuit breaker QF3 is also installed in the fan control circuit.

[0037] In some embodiments, see Appendix Figure 7 The output relay KA4 switch is also connected in series with an external emergency light. When the output relay KA4 switch is closed and conducting, the external emergency light will illuminate.

[0038] In some embodiments, for any one automatic control subunit, the automatic control subunit includes: a smoke and heat detector and a relay; the relay includes a relay switch and a relay coil. Specifically, the switch of the smoke and heat detector and the relay coil are connected in series; the switch of the smoke and heat detector and the relay switch are connected in parallel; the first terminal of the switch of the smoke and heat detector is connected to the first terminal of the relay switch and the second terminal of the automatic mode switch; the second terminal of the switch of the smoke and heat detector is connected to the second terminal of the relay switch and the first terminal of the relay coil; the second terminal of the relay coil is connected to the live wire; and the first terminal of the automatic mode switch is connected to the neutral wire.

[0039] See appendix Figure 8The automatic control subunit includes a first automatic control subunit, which includes a first smoke and heat detector and a first relay JDQ1. The first relay JDQ1 includes a first relay JDQ1 switch and a first relay JDQ1 coil; wherein the switch of the first smoke and heat detector and the first relay JDQ1 coil are connected in series; the switch of the first smoke and heat detector and the first relay JDQ1 switch are connected in parallel; the first terminal of the switch of the first smoke and heat detector is connected to the first terminal of the first relay JDQ1 switch and the second terminal of the automatic mode switch; the second terminal of the switch of the first smoke and heat detector is connected to the second terminal of the first relay JDQ1 switch and the first terminal of the first relay JDQ1 coil; the second terminal of the first relay JDQ1 coil is connected to the live wire; the first terminal of the automatic mode switch SA2 is connected to the neutral wire. The automatic control subunit includes a second automatic control subunit, which includes a second smoke and heat sensor and a second relay JDQ2.

[0040] The second relay JDQ2 includes a second relay JDQ2 switch and a second relay JDQ2 coil; the switch of the second smoke and heat detector and the second relay JDQ2 coil are connected in series; The switch of the second smoke and heat detector and the switch of the second relay JDQ2 are connected in parallel; the first terminal of the switch of the second smoke and heat detector is connected to the first terminal of the second relay JDQ2 switch and the second terminal of the automatic mode switch; the second terminal of the switch of the second smoke and heat detector is connected to the second terminal of the second relay JDQ2 switch and the first terminal of the coil of the second relay JDQ2; the second terminal of the coil of the second relay JDQ2 is connected to the live wire.

[0041] The automatic control subunit includes a third automatic control subunit, which includes a third smoke and temperature sensor and a third relay JDQ3. The third relay JDQ3 includes a third relay JDQ3 switch and a third relay JDQ3 coil. The switch of the third smoke and temperature sensor and the third relay JDQ3 coil are connected in series. The switch of the third smoke and temperature sensor and the third relay JDQ3 switch are connected in parallel. The first terminal of the switch of the third smoke and temperature sensor is connected to the first terminal of the third relay JDQ3 switch and the second terminal of the automatic mode switch. The second terminal of the switch of the third smoke and heat detector is connected to the second terminal of the switch of the third relay JDQ3 and the first terminal of the coil of the third relay JDQ3, respectively; the second terminal of the coil of the third relay JDQ3 is connected to the live wire.

[0042] The automatic control subunit includes a fourth automatic control subunit, which includes a fourth smoke and heat detector and a fourth relay JDQ4. The fourth relay JDQ4 includes a fourth relay JDQ4 switch and a fourth relay JDQ4 coil; the switch of the fourth smoke and heat detector and the fourth relay JDQ4 coil are connected in series; the switch of the fourth smoke and heat detector and the fourth relay JDQ4 switch are connected in parallel; the first terminal of the switch of the fourth smoke and heat detector is connected to the first terminal of the fourth relay JDQ4 switch and the second terminal of the automatic mode switch; the second terminal of the switch of the fourth smoke and heat detector is connected to the second terminal of the fourth relay JDQ4 switch and the first terminal of the fourth relay JDQ4 coil; the second terminal of the fourth relay JDQ4 coil is connected to the live wire.

[0043] The automatic control subunit includes a fifth automatic control subunit, which includes a fifth smoke and heat detector and a fifth relay JDQ5. The fifth relay JDQ5 includes a fifth relay JDQ5 switch and a fifth relay JDQ5 coil. The switch of the fifth smoke and heat detector and the fifth relay JDQ5 coil are connected in series; the switch of the fifth smoke and heat detector and the fifth relay JDQ5 switch are connected in parallel; the first terminal of the switch of the fifth smoke and heat detector is connected to the first terminal of the fifth relay JDQ5 switch and the second terminal of the automatic mode switch; the second terminal of the switch of the fifth smoke and heat detector is connected to the second terminal of the fifth relay JDQ5 switch and the first terminal of the fifth relay JDQ5 coil; the second terminal of the fifth relay JDQ5 coil is connected to the live wire.

[0044] The automatic control subunit includes a sixth automatic control subunit, which includes a sixth smoke and heat detector and a sixth relay JDQ6. The sixth relay JDQ6 includes a sixth relay JDQ6 switch and a sixth relay JDQ6 coil; the switch of the sixth smoke and heat detector and the sixth relay JDQ6 coil are connected in series; the switch of the sixth smoke and heat detector and the sixth relay JDQ6 switch are connected in parallel; the first terminal of the switch of the sixth smoke and heat detector is connected to the first terminal of the sixth relay JDQ6 switch and the second terminal of the automatic mode switch; the second terminal of the switch of the sixth smoke and heat detector is connected to the second terminal of the sixth relay JDQ6 switch and the first terminal of the sixth relay JDQ6 coil; the second terminal of the sixth relay JDQ6 coil is connected to the live wire.

[0045] The automatic control subunit includes a seventh automatic control subunit, which includes a seventh smoke and heat detector and a seventh relay JDQ7. The seventh relay JDQ7 includes a seventh relay JDQ7 switch and a seventh relay JDQ7 coil; the switch of the seventh smoke and heat detector and the seventh relay JDQ7 coil are connected in series; the switch of the seventh smoke and heat detector and the seventh relay JDQ7 switch are connected in parallel; the first terminal of the switch of the seventh smoke and heat detector is connected to the first terminal of the seventh relay JDQ7 switch and the second terminal of the automatic mode switch; the second terminal of the switch of the seventh smoke and heat detector is connected to the second terminal of the seventh relay JDQ7 switch and the first terminal of the seventh relay JDQ7 coil; the second terminal of the seventh relay JDQ7 coil is connected to the live wire.

[0046] The automatic control subunit includes an eighth automatic control subunit, which includes an eighth smoke and heat detector and an eighth relay JDQ8. The eighth relay JDQ8 includes an eighth relay JDQ8 switch and an eighth relay JDQ8 coil; the switch of the eighth smoke and heat detector and the eighth relay JDQ8 coil are connected in series; the switch of the eighth smoke and heat detector and the eighth relay JDQ8 switch are connected in parallel; the first terminal of the switch of the eighth smoke and heat detector is connected to the first terminal of the eighth relay JDQ8 switch and the second terminal of the automatic mode switch; the second terminal of the switch of the eighth smoke and heat detector is connected to the second terminal of the eighth relay JDQ8 switch and the first terminal of the eighth relay JDQ8 coil; the second terminal of the eighth relay JDQ8 coil is connected to the live wire.

[0047] The automatic control subunit includes a ninth automatic control subunit, which includes a ninth smoke and heat detector and a ninth relay JDQ9. The ninth relay JDQ9 includes a ninth relay JDQ9 switch and a ninth relay JDQ9 coil; the switch of the ninth smoke and heat detector and the ninth relay JDQ9 coil are connected in series; the switch of the ninth smoke and heat detector and the ninth relay JDQ9 switch are connected in parallel; the first terminal of the switch of the ninth smoke and heat detector is connected to the first terminal of the ninth relay JDQ9 switch and the second terminal of the automatic mode switch; the second terminal of the switch of the ninth smoke and heat detector is connected to the second terminal of the ninth relay JDQ9 switch and the first terminal of the ninth relay JDQ9 coil; the second terminal of the ninth relay JDQ9 coil is connected to the live wire. The automatic control subunit includes a tenth automatic control subunit, which includes a tenth smoke and heat detector and a tenth relay JDQ10. The tenth relay JDQ10 includes a tenth relay JDQ10 switch and a tenth relay JDQ10 coil; the switch of the tenth smoke and heat detector and the tenth relay JDQ10 coil are connected in series; the switch of the tenth smoke and heat detector and the tenth relay JDQ10 switch are connected in parallel; the first terminal of the switch of the tenth smoke and heat detector is connected to the first terminal of the tenth relay JDQ10 switch and the second terminal of the automatic mode switch; the second terminal of the switch of the tenth smoke and heat detector is connected to the second terminal of the tenth relay JDQ10 switch and the first terminal of the tenth relay JDQ10 coil; the second terminal of the tenth relay JDQ10 coil is connected to the live wire.

[0048] In some embodiments, the second intermediate relay switch is connected in parallel with each of the relay switches in any of the automatic control subunits to form a parallel unit. For example, the second intermediate relay switch KA2 is connected in parallel with the first relay switch JDQ1, the second relay switch JDQ2, the third relay switch JD3, the fourth relay switch JDQ4, the fifth relay switch JDQ5, the sixth relay switch JDQ6, the seventh relay switch JDQ7, the eighth relay switch JDQ8, the ninth relay switch JDQ9, and the tenth relay switch JDQ10 to form a parallel unit. The parallel unit is connected in series with the coil of the second intermediate relay KA2 and the automatic mode switch SA2; the first end of the parallel unit is connected to the second end of the automatic mode switch SA2, and the second end of the parallel unit is connected to the first end of the coil of the second intermediate relay KA2; the second end of the coil of the second intermediate relay KA2 is connected to the live wire.

[0049] In some embodiments, the arbitrary automatic control subunit further includes a solenoid valve; the solenoid valve includes a solenoid valve coil and a valve core. The second terminal of the relay switch is connected to the first terminal of the solenoid valve coil, and the second terminal of the solenoid valve coil is connected to the negative terminal of the DC power supply; the first terminal of the relay switch is connected to the second terminal of the second intermediate relay switch, and the first terminal of the second intermediate relay switch is connected to the positive terminal of the DC power supply.

[0050] Upon entering automatic mode, if the smoke and temperature detectors in the automatic control subunit detect smoke and the temperature reaches a threshold, the switch of the smoke and temperature detector closes, energizing the solenoid valve. This includes: closing the automatic mode switch; in any automatic control subunit, if the smoke and temperature detectors in the automatic control subunit detect smoke and the temperature reaches a threshold, the switch of the smoke and temperature detector closes; the closing of the smoke and temperature detector's switch actuates the relay switch in the automatic control subunit; the actuation of the relay switch in the automatic control subunit energizes the coil of the second intermediate relay; the energization of the coil of the second intermediate relay actuates the switch of the second intermediate relay; the closing of the second intermediate relay energizes the solenoid valve in the automatic control subunit; and the solenoid valve actuates. Water flows through the water path where the solenoid valve is located, and the sprinkler system sprays water.

[0051] See appendix Figure 9-10 The first automatic control subunit further includes a first solenoid valve DCF1; the first solenoid valve DCF1 includes a first solenoid valve DCF1 coil and a first valve core; the second terminal of the first relay JDQ1 switch is connected to the first terminal of the first solenoid valve coil, and the second terminal of the first solenoid valve DCF1 coil is connected to the negative terminal of the DC power supply; the first terminal of the first relay JDQ1 switch is connected to the second terminal of the second intermediate relay KA2 switch, and the first terminal of the second intermediate relay KA2 switch is connected to the positive terminal of the DC power supply. When the second intermediate relay KA2 switch is closed and the first relay JDQ1 switch is closed, the first solenoid valve DCF1 coil is energized, the first valve core actuates, so that the water path where the first solenoid valve DCF1 is located flows, and the sprinkler device sprays water.

[0052] The second automatic control subunit also includes a second solenoid valve DCF2; the second solenoid valve DCF2 includes a second solenoid valve DCF2 coil and a second valve core; the second terminal of the second relay JDQ2 switch is connected to the first terminal of the second solenoid valve DCF2 coil, and the second terminal of the second solenoid valve DCF2 coil is connected to the negative terminal of the DC power supply; the first terminal of the second relay JDQ2 switch is connected to the second terminal of the second intermediate relay KA2 switch. When the second intermediate relay KA2 switch and the second relay JDQ2 switch are closed, the second solenoid valve DCF2 coil is energized, the second valve core actuates, so that the water path where the second solenoid valve DCF2 is located flows, and the sprinkler device sprays water.

[0053] The third automatic control subunit also includes a third solenoid valve DCF3; the third solenoid valve DCF3 includes a third solenoid valve DCF3 coil and a third valve core; the second terminal of the third relay JDQ3 switch is connected to the first terminal of the third solenoid valve DCF3 coil, and the second terminal of the third solenoid valve DCF3 coil is connected to the negative terminal of a DC power supply; the first terminal of the third relay JDQ3 switch is connected to the second terminal of the second intermediate relay KA2 switch. When the second intermediate relay KA2 switch is closed and the third relay JDQ3 switch is closed, the third solenoid valve DCF3 coil is energized, the third valve core actuates, so that the water path where the third solenoid valve DCF3 is located flows, and the sprinkler device sprays water.

[0054] The fourth automatic control subunit also includes a fourth solenoid valve DCF4; the fourth solenoid valve DCF4 includes a fourth solenoid valve DCF4 coil and a fourth valve core; the second terminal of the fourth relay JDQ4 switch is connected to the first terminal of the fourth solenoid valve DCF4 coil, and the second terminal of the fourth solenoid valve DCF4 coil is connected to the negative terminal of a DC power supply; the first terminal of the fourth relay JDQ4 switch is connected to the second terminal of the second intermediate relay KA2 switch. When the second intermediate relay KA2 switch and the fourth relay JDQ4 switch are closed, the fourth solenoid valve DCF4 coil is energized, the fourth valve core actuates, so that the water path where the fourth solenoid valve DCF4 is located flows, and the sprinkler device sprays water.

[0055] The fifth automatic control subunit also includes a fifth solenoid valve DCF5; the fifth solenoid valve DCF5 includes a fifth solenoid valve DCF5 coil and a fifth valve core; the second terminal of the fifth relay JDQ5 switch is connected to the first terminal of the fifth solenoid valve DCF5 coil, and the second terminal of the fifth solenoid valve DCF5 coil is connected to the negative terminal of a DC power supply; the first terminal of the fifth relay JDQ5 switch is connected to the second terminal of the second intermediate relay KA2 switch. When the second intermediate relay KA2 switch is closed and the fifth relay JDQ5 switch is closed, the fifth solenoid valve DCF5 coil is energized, the fifth valve core actuates, so that the water path where the fifth solenoid valve DCF5 is located flows, and the sprinkler device sprays water.

[0056] The sixth automatic control subunit also includes a sixth solenoid valve DCF6; the sixth solenoid valve DCF6 includes a sixth solenoid valve DCF6 coil and a sixth valve core; the second terminal of the sixth relay JDQ6 switch is connected to the first terminal of the sixth solenoid valve DCF6 coil, and the second terminal of the sixth solenoid valve DCF6 coil is connected to the negative terminal of a DC power supply; the first terminal of the sixth relay JDQ6 switch is connected to the second terminal of the second intermediate relay KA2 switch. When the second intermediate relay KA2 switch is closed and the sixth relay JDQ6 switch is closed, the sixth solenoid valve DCF6 coil is energized, the sixth valve core actuates, so that the water path where the sixth solenoid valve DCF6 is located flows, and the sprinkler device sprays water.

[0057] The seventh automatic control subunit also includes a seventh solenoid valve DCF7; the seventh solenoid valve DCF7 includes a seventh solenoid valve DCF7 coil and a seventh valve core; the second terminal of the seventh relay JDQ7 switch is connected to the first terminal of the seventh solenoid valve DCF7 coil, and the second terminal of the seventh solenoid valve DCF7 coil is connected to the negative terminal of a DC power supply; the first terminal of the seventh relay JDQ7 switch is connected to the second terminal of the second intermediate relay KA2 switch. When the second intermediate relay KA2 switch is closed and the seventh relay JDQ7 switch is closed, the seventh solenoid valve DCF7 coil is energized, the seventh valve core actuates, so that the water path where the seventh solenoid valve DCF7 is located flows, and the sprinkler device sprays water.

[0058] The eighth automatic control subunit also includes an eighth solenoid valve DCF8; the eighth solenoid valve DCF8 includes an eighth solenoid valve DCF8 coil and an eighth valve core; the second terminal of the eighth relay JDQ8 switch is connected to the first terminal of the eighth solenoid valve DCF8 coil, and the second terminal of the eighth solenoid valve DCF8 coil is connected to the negative terminal of a DC power supply; the first terminal of the eighth relay JDQ8 switch is connected to the second terminal of the second intermediate relay KA2 switch. When the second intermediate relay KA2 switch is closed and the eighth relay JDQ8 switch is closed, the eighth solenoid valve DCF8 coil is energized, the eighth valve core actuates, so that the water path where the eighth solenoid valve DCF8 is located flows, and the sprinkler device sprays water.

[0059] The ninth automatic control subunit also includes a ninth solenoid valve DCF9; the ninth solenoid valve DCF9 includes a ninth solenoid valve DCF9 coil and a ninth valve core; the second terminal of the ninth relay JDQ9 switch is connected to the first terminal of the ninth solenoid valve DCF9 coil, and the second terminal of the ninth solenoid valve DCF9 coil is connected to the negative terminal of the DC power supply; the first terminal of the ninth relay JDQ9 switch is connected to the second terminal of the second intermediate relay KA2 switch.

[0060] When the second intermediate relay KA2 switch is closed and the ninth relay JDQ9 switch is closed, the coil of the ninth solenoid valve DCF9 is energized, the ninth valve core is activated, so that the water path where the ninth solenoid valve DCF9 is located is circulated, and the sprinkler device sprays water.

[0061] The tenth automatic control subunit also includes a tenth solenoid valve DCF10; the tenth solenoid valve DCF10 includes a tenth solenoid valve DCF10 coil and a tenth valve core; the second end of the tenth relay JDQ10 switch is connected to the first end of the tenth solenoid valve DCF10 coil, and the second end of the tenth solenoid valve DCF10 coil is connected to the negative terminal of the DC power supply; the first end of the tenth relay JDQ10 switch is connected to the second end of the second intermediate relay KA2 switch.

[0062] When the second intermediate relay KA2 switch is closed and the tenth relay JDQ10 switch is closed, the coil of the tenth solenoid valve DCF10 is energized, the tenth valve core is activated, so that the water path where the tenth solenoid valve DCF10 is located is circulated, and the sprinkler device sprays water.

[0063] In some embodiments, the emergency switch parallel unit includes multiple emergency switches, each of which is disposed in each automatic control subunit: for any emergency switch in an automatic control subunit, the first end of the emergency switch is also connected to the second end of an emergency relay switch, the second end of the emergency switch is connected to the first end of the solenoid valve, the second end of the solenoid valve is connected to the negative terminal of the DC power supply; the first end of the emergency relay switch is connected to the positive terminal of the DC power supply.

[0064] When the emergency switch and the emergency relay switch are closed, the solenoid valve coil is energized, the valve core actuates, so that the water path where the solenoid valve is located is circulated, and the sprinkler device sprays water.

[0065] For example, the emergency switch parallel unit includes: a first emergency switch JJ1; the first end of the first emergency switch JJ1 is also connected to the second end of the emergency relay KA3 switch, the second end of the first emergency switch JJ1 is connected to the first end of the first solenoid valve DCF1, and the second end of the first solenoid valve DCF1 is connected to the negative terminal of the DC power supply; the first end of the emergency relay KA3 switch is connected to the positive terminal of the DC power supply; when the first emergency switch JJ1 is closed and the emergency relay KA3 switch is closed, the coil of the first solenoid valve DCF1 is energized, the first valve core is activated, so that the water path where the first solenoid valve DCF1 is located is circulated, and the sprinkler device sprays water.

[0066] The second emergency switch JJ2 is connected to the second terminal of the emergency relay KA3. The second terminal of the second emergency switch JJ2 is connected to the first terminal of the second solenoid valve DCF2. The second terminal of the second solenoid valve DCF2 is connected to the negative terminal of the DC power supply. The first terminal of the emergency relay KA3 is connected to the positive terminal of the DC power supply. When the second emergency switch JJ2 and the emergency relay KA3 are closed, the coil of the second solenoid valve DCF2 is energized, and the second valve core actuates, so that the water path where the second solenoid valve DCF2 is located flows, and the sprinkler system sprays water. The third emergency switch JJ3; the first end of the third emergency switch JJ3 is also connected to the second end of the emergency relay KA3 switch, the second end of the third emergency switch JJ3 is connected to the first end of the third solenoid valve DCF3, the second end of the third solenoid valve DCF3 is connected to the negative terminal of the DC power supply; the first end of the emergency relay KA3 switch is connected to the positive terminal of the DC power supply; when the third emergency switch JJ3 and the emergency relay KA3 switch are closed, the coil of the third solenoid valve DCF3 is energized, the third valve core is activated, so that the water path where the third solenoid valve DCF3 is located is circulated, and the sprinkler device sprays water; The fourth emergency switch JJ4 is connected to the second terminal of the emergency relay KA3. The second terminal of the fourth emergency switch JJ4 is connected to the first terminal of the fourth solenoid valve DCF4, and the second terminal of the fourth solenoid valve DCF4 is connected to the negative terminal of the DC power supply. The first terminal of the emergency relay KA3 is connected to the positive terminal of the DC power supply. When the fourth emergency switch JJ4 and the emergency relay KA3 are closed, the coil of the fourth solenoid valve DCF4 is energized, and the fourth valve core actuates, so that the water path where the fourth solenoid valve DCF4 is located flows, and the sprinkler system sprays water. The fifth emergency switch JJ5; the first end of the fifth emergency switch JJ5 is also connected to the second end of the emergency relay KA3 switch, the second end of the fifth emergency switch JJ5 is connected to the first end of the fifth solenoid valve DCF5, and the second end of the fifth solenoid valve DCF5 is connected to the negative terminal of the DC power supply; the first end of the emergency relay KA3 switch is connected to the positive terminal of the DC power supply; when the fifth emergency switch JJ5 is closed and the emergency relay KA3 switch is closed, the coil of the fifth solenoid valve DCF5 is energized, the fifth valve core is activated, so that the water path where the fifth solenoid valve DCF5 is located is circulated, and the sprinkler device sprays water; The sixth emergency switch JJ6; the first end of the sixth emergency switch JJ6 is also connected to the second end of the emergency relay KA3 switch, the second end of the sixth emergency switch JJ6 is connected to the first end of the sixth solenoid valve DCF6, and the second end of the sixth solenoid valve DCF6 is connected to the negative terminal of the DC power supply; the first end of the emergency relay KA3 switch is connected to the positive terminal of the DC power supply; when the sixth emergency switch JJ6 and the emergency relay KA3 switch are closed, the coil of the sixth solenoid valve DCF6 is energized, the sixth valve core is activated, so that the water path where the sixth solenoid valve DCF6 is located is circulated, and the sprinkler device sprays water; The seventh emergency switch JJ7 is connected to the second terminal of the emergency relay KA3. The second terminal of the seventh emergency switch JJ7 is connected to the first terminal of the seventh solenoid valve DCF7. The second terminal of the seventh solenoid valve DCF7 is connected to the negative terminal of the DC power supply. The first terminal of the emergency relay KA3 is connected to the positive terminal of the DC power supply. When the seventh emergency switch JJ7 and the emergency relay KA3 are closed, the coil of the seventh solenoid valve DCF7 is energized, and the seventh valve core actuates, so that the water path where the seventh solenoid valve DCF7 is located flows, and the sprinkler system sprays water. The eighth emergency switch JJ8; the first end of the eighth emergency switch JJ8 is also connected to the second end of the emergency relay KA3 switch, the second end of the eighth emergency switch JJ8 is connected to the first end of the eighth solenoid valve DCF8, and the second end of the eighth solenoid valve DCF8 is connected to the negative terminal of the DC power supply; the first end of the emergency relay KA3 switch is connected to the positive terminal of the DC power supply; when the eighth emergency switch JJ8 and the emergency relay KA3 switch are closed, the coil of the eighth solenoid valve DCF8 is energized, the eighth valve core is activated, so that the water path where the eighth solenoid valve DCF8 is located is circulated, and the sprinkler device sprays water; The ninth emergency switch JJ9 is connected to the second terminal of the emergency relay KA3. The second terminal of the ninth emergency switch JJ9 is connected to the first terminal of the ninth solenoid valve DCF9, and the second terminal of the ninth solenoid valve DCF9 is connected to the negative terminal of the DC power supply. The first terminal of the emergency relay KA3 is connected to the positive terminal of the DC power supply. When the ninth emergency switch JJ9 and the emergency relay KA3 are closed, the coil of the ninth solenoid valve DCF9 is energized, and the ninth valve core actuates, so that the water path where the ninth solenoid valve DCF9 is located is circulated, and the sprinkler system sprays water. The tenth emergency switch JJ10; the first end of the tenth emergency switch JJ10 is also connected to the second end of the emergency relay KA3 switch, the second end of the tenth emergency switch JJ10 is connected to the first end of the tenth solenoid valve DCF10, and the second end of the tenth solenoid valve DCF10 is connected to the negative terminal of the DC power supply; the first end of the emergency relay KA3 switch is connected to the positive terminal of the DC power supply; when the tenth emergency switch JJ10 and the emergency relay KA3 switch are closed, the coil of the tenth solenoid valve DCF10 is energized, the tenth valve core is activated, so that the water path where the tenth solenoid valve DCF10 is located is circulated, and the sprinkler device sprays water.

[0067] In some embodiments, see Appendix Figure 11 It also includes a solenoid valve power indicator light, with its first end connected to the neutral wire L1 and its second end connected to the live wire N1. A fault alarm circuit 06 is used to issue an alarm in case of a fault. In some embodiments, a remote alarm device 01 is also included for remote alarm activation, automatically calling the homeowner to inform them of the alarm.

[0068] In some embodiments, the method further includes a central control unit and cameras disposed in each area. The method further includes: upon entering automatic mode, the cameras acquire real-time monitoring images of each area; the central control unit uses a target detection algorithm to detect the images and determine whether a fire has occurred; in the event of a fire, it sends control commands to the solenoid valves in the area to control the solenoid valves to operate, and controls the fans and water pumps to start for fire suppression.

[0069] In some embodiments, if a smoke and heat detector in the corresponding automatic control subunit of any area detects smoke and the temperature reaches a temperature threshold, after the solenoid valve controls the sprinkler system in that area to spray water, the method further includes the central control unit sending a fire notification message to the mobile terminal application of the management personnel. The fire notification message contains specific area location information. In this embodiment, by sending a fire notification message containing specific area location information to the mobile terminal application of the management personnel, management personnel can arrive at the fire area promptly to assist in firefighting.

[0070] In some embodiments, the method further includes a central control unit acquiring an image of the area captured by the camera; using a target detection algorithm based on the image of the area to determine whether there is personnel guarding the area; if there is no personnel guarding the area, after the smoke and temperature detectors in the automatic control subunit of the area detect smoke and the temperature reaches a temperature threshold, the central control unit also makes a phone call and sends a notification message to the management personnel client so that the management personnel can arrive at the scene in a timely manner.

[0071] In some embodiments, a smoke detection concentration threshold can be set. When the smoke concentration detected by the smoke and temperature detector is greater than the smoke detection concentration threshold and the temperature reaches a temperature threshold, the sprinkler device in the area is controlled to spray water.

[0072] It is worth emphasizing that the technical solution of this application sets up two activation methods: the first activation method is an automatic activation method, specifically, the activation method is triggered by the smoke and heat detectors detecting the ambient temperature and smoke concentration. When the smoke and heat detectors detect the appropriate temperature and smoke concentration, they will activate, that is, the switches in the smoke and heat relays will actuate. Subsequently, due to the connection relationships of the various electrical components in this application, this will drive the activation of related electrical components throughout the system, including: water pump activation; local alarm unit (alarm) activation; remote alarm unit activation, including broadcast and remote alarm devices (i.e., telephone alarms); and activation of the smoke extraction fan in the fan control unit.

[0073] The second activation method is emergency activation, also known as manual activation. In manual activation, the aforementioned electrical components in the entire system will also be activated to achieve the expected alarm and fire extinguishing effect.

Claims

1. A fire prevention and control method, characterized in that, The fire protection control system includes: multiple automatic control subunits, an emergency control unit, a water pump control unit, and a fan control unit; The method includes: When the operating mode selection switch is in the emergency start mode position, the emergency start mode is entered. After entering the emergency start mode, any one of the emergency switches in the emergency control unit closes, which energizes the solenoid valve located in the same automatic control subunit as the emergency switch, and controls the water pump in the water pump control unit to start, and controls the fan in the fan control unit to start, for spraying and smoke extraction. Operate the mode selection switch to the automatic mode position to enter automatic mode; After entering automatic mode, for any automatic control subunit, when the smoke and temperature detectors in the automatic control subunit detect smoke and the temperature reaches the temperature threshold, the switch of the smoke and temperature detectors closes, causing the solenoid valve in the automatic control subunit to be energized and activated, thereby controlling the water pump in the water pump control unit to start and the fan in the fan control unit to start, for spraying and smoke prevention and exhaust.

2. The fire control method as described in claim 1, characterized in that, The emergency control unit includes: an emergency switch parallel unit, an emergency relay, and an emergency solenoid valve; The emergency relay includes an emergency relay switch and an emergency relay coil; The emergency solenoid valve includes an emergency solenoid valve coil and an emergency solenoid valve core. The emergency switch parallel unit is connected in series with the emergency relay coil; The emergency relay switch is connected in series with the emergency solenoid valve coil; Upon entering the emergency start mode, any one of the emergency switches in the emergency control unit closes, energizing the solenoid valve located in the same automatic control subunit as the emergency switch, including: When any one of the emergency switches in the parallel emergency switch unit is closed, the emergency relay coil is energized; When the emergency relay coil is energized, it causes the emergency relay switch to close. When the emergency relay switch is closed, the emergency solenoid valve coil is energized; When the emergency solenoid valve coil is energized, it actuates the valve core of the emergency solenoid valve, causing the sprinkler device to spray water.

3. The fire control method as described in claim 2, characterized in that, It also includes a second intermediate relay; the second intermediate relay includes a second intermediate relay coil and a second intermediate relay switch; The second intermediate relay switch is used to close and conduct in automatic mode and to open and close in emergency start mode.

4. The fire control method as described in claim 3, characterized in that, The first and second terminals of the mode selection switch are respectively connected to the neutral wire. The third and fourth terminals of the mode selection switch are respectively connected to the first terminal of the emergency relay coil and the first terminal of the second intermediate relay switch. The second terminal of the second intermediate relay switch is connected to the first terminal of the first intermediate relay coil; the second terminal of the first intermediate relay coil is connected to the live wire. When the operation mode selection switch is in the emergency start mode position, entering the emergency start mode includes: Manually rotate the rotary button to switch the first contact to the third end and the second contact to the second end, so that the emergency relay coil is energized and the first intermediate relay coil is disconnected. The first contact and the second contact of the rotary button are integrally connected; The operation of the mode selection switch to the automatic mode position, entering automatic mode, includes: Manually switch the first contact of the rotary button to the first end and the second contact to the fourth end; so that the emergency relay coil is de-energized and the first intermediate relay coil is energized.

5. The fire control method as described in claim 3, characterized in that, The first end of the second intermediate relay switch is connected to the neutral wire, and the second end is connected to the first end of the output relay coil. The second end of the output relay coil is connected to the live wire. The first terminal of the output relay switch is connected to the neutral wire, and the second terminal is connected to the first terminal of the water pump AC contactor coil, the first terminal of the fan AC contactor coil, and the first terminal of the external broadcasting device, respectively. The second end of the water pump AC contactor coil, the second end of the fan AC contactor coil, and the second end of the external broadcasting device are connected to the live wire; Upon entering automatic mode, the system controls the water pump in the water pump control unit to start and the fan in the fan control unit to start, including: When the second intermediate relay switch is closed and conducting, the output relay coil is energized; When the output relay switch is activated, the water pump AC contactor coil, the fan AC contactor coil, and the external broadcasting device are energized. The water pump AC contactor switch is activated, and the water pump starts working; When the AC contactor switch for the fan is activated, the fan starts working. The external broadcasting device is working.

6. The fire control method as described in claim 3, characterized in that, For any given automatic control subunit, the automatic control subunit includes: Smoke and heat detectors and relays; The relay includes a relay switch and a relay coil; The switch of the smoke and heat detector is connected in series with the relay coil; The switch and relay switch of the smoke and heat detector are connected in parallel; The first terminal of the switch of the smoke and heat detector is connected to the first terminal of the relay switch and the second terminal of the automatic mode switch, respectively. The second terminal of the switch of the smoke and heat detector is connected to the second terminal of the relay switch and the first terminal of the relay coil, respectively. The second end of the relay coil is connected to the live wire; The first terminal of the automatic mode switch is connected to the neutral wire.

7. The fire control method as described in claim 6, characterized in that, The second intermediate relay switch is connected in parallel with the relay switch in any of the automatic control subunits to form a parallel unit; The parallel unit is connected in series with the second intermediate relay coil and the automatic mode switch; The first end of the parallel unit is connected to the second end of the automatic mode switch, and the second end of the parallel unit is connected to the first end of the second intermediate relay coil. The second end of the second intermediate relay coil is connected to the live wire.

8. The fire control method as described in claim 7, characterized in that, The arbitrary automatic control subunit also includes a solenoid valve; The solenoid valve includes a solenoid valve coil and a valve core; The second terminal of the relay switch is connected to the first terminal of the solenoid valve coil, and the second terminal of the solenoid valve coil is connected to the negative terminal of the DC power supply. The first end of the relay switch is connected to the second end of the second intermediate relay switch, and the first end of the second intermediate relay switch is connected to the positive terminal of the DC power supply.

9. The fire control method as described in claim 8, characterized in that, The emergency switch parallel unit includes multiple emergency switches, and each emergency switch is installed in each automatic control subunit: For any emergency switch in an automatic control subunit The first terminal of the emergency switch is also connected to the second terminal of the emergency relay switch, the second terminal of the emergency switch is connected to the first terminal of the solenoid valve, and the second terminal of the solenoid valve is connected to the negative terminal of the DC power supply; the first terminal of the emergency relay switch is connected to the positive terminal of the DC power supply. When the emergency switch and the emergency relay switch are closed, the solenoid valve coil is energized, the valve core actuates, so that the water path where the solenoid valve is located is circulated, and the sprinkler device sprays water.

10. The fire control method as described in claim 8, characterized in that, Upon entering automatic mode, in the automatic control subunit, when the smoke and temperature detectors detect smoke and the temperature reaches a temperature threshold, the switch of the smoke and temperature detectors closes, energizing the solenoid valve to actuate, including: Close the automatic mode switch; In any automatic control subunit, if the smoke and temperature detector in the automatic control subunit detects smoke and the temperature reaches the temperature threshold, the switch of the smoke and temperature detector is closed. When the switch of the smoke and heat detector is closed, it actuates the relay switch in the automatic control subunit. The relay switch in the automatic control subunit is activated, which energizes the coil of the second intermediate relay. When the coil of the second intermediate relay is energized, it causes the switch of the second intermediate relay to close. When the switch of the second intermediate relay is closed, the solenoid valve in the automatic control subunit is energized; The solenoid valve is activated; The water path where the solenoid valve is located is open, and the spray device sprays water.

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