CN109859434B - Ventilation and smoke discharge optimization control system and method for subway station - Google Patents
Ventilation and smoke discharge optimization control system and method for subway station Download PDFInfo
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Abstract
The invention relates to a ventilation and smoke exhaust optimization control system and method for a subway station, wherein the control system comprises a plurality of smoke alarms which are uniformly arranged above a platform area, and each smoke alarm comprises a temperature sensor and a smoke sensor; the output ends of the smoke alarms are connected with the input end of the coded switching value addressing alarm device through the signal conditioning circuit; the output end of the coded switching value addressing alarm device is connected with the input end of a fire alarm controller, and a GPS device is also connected to the input end of the fire alarm controller; and the output end of the fire alarm controller is respectively connected with the tunnel fan and the exhaust valve. The invention can sense the fire occurrence condition in time through the smoke alarm when the fire occurs in the subway station, transmits the fire signal to the central fire alarm controller in real time, sends the control signal to the exhaust valve and the tunnel fan in the fire occurrence area, and exhausts the smoke of the fire at a fixed point, thereby achieving the optimal treatment of the smoke emission of the fire.
Description
Technical Field
The invention relates to a smoke exhaust system and a smoke exhaust method for a subway station in a fire disaster, in particular to a ventilation and smoke exhaust optimization control system and a ventilation and smoke exhaust optimization control method for the subway station.
Background
The subway is used as an important traffic facility in a city, the personnel density is high, the subway is completely underground, and how to ensure the safe operation of the subway is a problem which must be faced by each subway construction and operation department. But fire accidents still occur occasionally and tend to rise. Therefore, how to achieve early detection, early processing and orderly evacuation, minimize the possible fire risk and minimize the fire damage becomes a problem that needs attention and solution. Subway stations and sections are building groups located below the ground, are basically isolated from the outside air, and need to be connected with the outside through an access and a ventilation pipeline at the moment. Meanwhile, subway stations are characterized by high personnel density and relatively closed space, and once a fire disaster occurs, not only the safety measures for fire extinguishing need to be considered at the first time, but also other influences of the fire disaster on passengers need to be considered.
The current researches show that the main causes of human casualties in fire are as follows: (1) a toxic gas; (2) hypoxia; (3) burn; (4) hot air is inhaled. Therefore, when a fire disaster occurs in the subway station, it is very important to exhaust the generated toxic gas from the closed space of the subway station at the first time. If the opening of the whole ventilation opening is adjusted to the maximum when a fire disaster occurs, toxic gas generated by the fire disaster cannot be discharged at the highest efficiency, and the problem that the opening adjustment of the ventilation opening in the subway station is urgently needed to be solved is solved.
Disclosure of Invention
The invention aims to solve the problem of adjusting the opening of an exhaust port in the existing subway station, and provides a ventilation and exhaust optimization control system and method for the subway station, which can adjust the opening of the exhaust port at a fixed point according to the specific position of a fire source and the concentration of generated smoke when a fire occurs so as to achieve optimization.
In order to achieve the purpose, the invention adopts the following technical scheme:
a ventilation and smoke discharge optimization control system for a subway station comprises a plurality of smoke alarms, a signal conditioning circuit, a coding switching value addressing alarm device, a fire alarm controller, a GPS device, a tunnel fan and an exhaust valve;
the smoke alarm devices are uniformly arranged above the platform area, and each smoke alarm device comprises a temperature sensor and a smoke sensor; the output ends of the temperature sensor and the smoke sensor are respectively connected with the input end of the coded switching value addressing alarm device through a signal conditioning circuit; the output end of the coded switching value addressing alarm device is connected with the input end of a fire alarm controller, the output end of the fire alarm controller is respectively connected with a tunnel fan and an exhaust valve, the tunnel fan is installed in a tunnel, the exhaust valve is used for controlling the opening degree of an exhaust outlet, and the exhaust outlet is installed in a platform and the tunnel.
Furthermore, the fire alarm system also comprises an L CD display screen, wherein the output end of the fire alarm controller is connected to the L CD display screen and is used for displaying the specific occurrence position and the severity level of the fire.
Furthermore, the fire alarm system also comprises an alarm indicator light, and the output end of the fire alarm controller is connected with the alarm indicator light.
Furthermore, the smoke alarm system further comprises a GPS device, wherein the GPS device is installed in the smoke alarm, and is connected to the input end of the fire alarm controller.
Further, smoke transducer 'S model is MQ-2 type, temperature sensor' S model is DS18B20 type, fire alarm controller 'S model is JB-QB-GST200/242 type, GPS device' S model is U-B L OX L EA-6S type, L CD display screen adopts 2.2 cun L CD display screen, the model of warning pilot lamp is GBS-24V.
A ventilation and smoke exhaust optimization control method for a subway station comprises the following steps:
step 1, data acquisition:
a smoke sensor and a temperature sensor in the smoke alarm respectively detect the smoke concentration and the temperature of a platform area in real time, and the smoke alarm judges whether an electric field of the platform area is balanced and whether the temperature of the platform area is within a safety threshold range; when the electric field of the platform area is balanced and the temperature is within the range of the safety threshold, the smoke sensor and the temperature sensor continue to respectively detect the smoke concentration and the temperature of the platform area in real time; when the electric field of the platform area is unbalanced or the temperature is not within the range of the safety threshold, the smoke alarm identifies and alarms the smoke concentration and transmits a fire smoke signal to the coded switching value addressing alarm device through the signal conditioning circuit;
step 2, identifying the position of a fire source:
the coding switching value addressing alarm device determines the coding of the alarm smoke alarm device so as to determine the position coding of the fire source of the fire, and meanwhile, the GPS device uploads the position information of the fire place;
and 3, transmitting the fire information to a fire alarm controller, wherein the fire alarm controller responds:
the fire smoke signal, the fire source position coding information and the position information of a fire place are uploaded to a fire alarm controller through a system bus, and the fire alarm controller carries out classified identification processing on the received fire smoke signal;
step 4, the fire alarm controller performs fuzzy calculation according to the fire level and the received fire information, determines the opening position and the opening degree of the exhaust valve and performs fuzzy control;
and 5, responding to the tunnel fan and the exhaust valve:
after the fire alarm controller determines the opening position and the opening degree of the exhaust valve, the determined command signals of the opening position and the opening degree of the exhaust valve are sent to a tunnel fan controller in a tunnel and exhaust valve opening controllers in a platform and the tunnel, so that the removal of polluted air in a subway station is realized, and fresh air is brought in.
Further, the fuzzy control process of the fire alarm controller in step 4 is as follows:
(1) judging the smoke concentration level by a fire alarm controller, if the smoke concentration is higher than the set high-level smoke concentration level, sending an instruction to an exhaust valve opening controller, adjusting the opening of an exhaust outlet to be maximum, and making a first-level special response by a tunnel fan and an exhaust valve; the fire alarm controller also processes signals identified and transmitted by the temperature sensor, and sends an instruction to the exhaust valve opening controller to adjust the opening of the exhaust outlet to the maximum if the temperature exceeds the set high-grade temperature level, and the tunnel fan and the exhaust valve both make a first-grade response;
(2) if the smoke concentration is higher than the set middle-level smoke concentration level and lower than the high-level smoke concentration level, sending an instruction to an exhaust valve opening controller, adjusting the opening of an exhaust outlet to the middle-level opening, and making a second-level response by a tunnel fan and the exhaust valve; if the temperature is higher than the set middle-level temperature level and lower than the high-level temperature level, sending an instruction to an exhaust valve opening controller, adjusting the opening of an exhaust outlet to the middle-level opening, and making a second-level response by a tunnel fan and an exhaust valve;
(3) if the smoke concentration is lower than the set middle-level smoke concentration level, sending an instruction to an exhaust valve opening controller, adjusting the opening of an exhaust outlet to be a low-level opening, and making three-level special responses by a tunnel fan and the exhaust valve; if the temperature is lower than the set middle-level temperature level, sending an instruction to an exhaust valve opening controller, adjusting the opening of an exhaust outlet to be a low-level opening, and making three-level special responses on a tunnel fan and the exhaust valve;
wherein, the smoke concentration control mode and the temperature control mode adopt a parallel control system, and the priority is the same; the first level response is higher than the second level response, the second level response is higher than the third level response, and when the smoke concentration control mode and the temperature control mode at the same coding position have different response levels, a high-level response processing scheme is preferentially selected.
Further, while the treatment protocol responded, the L CD display screen displayed the specific location and severity level of the fire.
Further, when the smoke alarm gives an alarm, the alarm indicator lamp is turned on; when fire smoke signals are transmitted in the system, the alarm indicator lights flash; when the system receives a feedback signal of the fire alarm controller, the alarm indicator lamp is normally on; when a new fire smoke signal is transmitted, the alarm indicator lamp is turned on again;
when the tunnel fan and the exhaust valve do primary individual response, the alarm indicator lamp flashes at high frequency; when the tunnel fan and the exhaust valve do secondary differential response, the alarm indicator lamp flashes at the intermediate frequency; when the tunnel fan and the exhaust valve do three-level special response, the alarm indicator lamp flashes at low frequency.
The invention has the beneficial effects that:
(1) according to the invention, when a fire disaster occurs in the subway station, the fire disaster occurrence condition can be timely sensed through the smoke alarm, and a fire disaster signal and a fire disaster occurrence position signal are transmitted to the central fire disaster alarm controller monitoring area in real time. The fire alarm controller sends a control signal to an exhaust valve and a tunnel fan in a fire occurrence area to exhaust fire smoke at a fixed point, so that the optimal treatment of the emission of the fire smoke is realized when a fire occurs in a subway station.
(2) Compared with the prior ventilation opening switch treatment when a fire disaster occurs in the subway station, the ventilation device can discharge toxic gas and hot gas harmful to people when the fire disaster occurs, and can improve the ventilation efficiency more efficiently on the basis of promoting the air circulation in the whole subway station.
(3) Automated monitoring systems operate automatically and give specific fault responses.
(4) According to the invention, the specific position of the fire and the severity level of the fire are directly positioned by carrying out graded identification and graded treatment on the smoke concentration and the temperature and a GPS positioning device, and further, the fire emergency response of different levels is carried out by adjusting the opening degrees of gate valves at different positions.
Drawings
Fig. 1 is a schematic structural view of a ventilation and smoke exhaust optimization control system of a subway station, which is disclosed by the invention;
fig. 2 is a flow chart of the method for controlling the optimization of the air outlet of the subway station.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
A ventilation and smoke discharge optimization control system for a subway station is shown in figure 1 and comprises a plurality of smoke alarms, a signal conditioning circuit, a coding switching value addressing alarm device, a fire alarm controller, a GPS device, a tunnel fan and an exhaust valve;
the smoke alarm devices are uniformly arranged above the platform area, and each smoke alarm device comprises a temperature sensor and a smoke sensor; the output ends of the temperature sensor and the smoke sensor are respectively connected with the input end of the coded switching value addressing alarm device through a signal conditioning circuit; the output end of the coded switching value addressing alarm device is connected with the input end of a fire alarm controller, and the output end of the fire alarm controller is respectively connected with a tunnel fan and an exhaust valve. The tunnel fan is arranged in the tunnel and used for generating unidirectional or bidirectional jet wind, a built-in motor with a B3 structure is adopted, the motor is supported by a special motor support, sufficient precision and strength are ensured, and a guide impeller is arranged to enable the whole gas flow field to be uniform and smooth. The exhaust valve is used for controlling the opening of the exhaust outlet, the exhaust outlet is arranged in the platform and the tunnel, and the exhaust volume of the fire source area is increased by increasing the opening of the exhaust valve of the fire source area, so that the influence is reduced more efficiently.
Preferably, the control system further comprises an L CD display screen, and the output end of the fire alarm controller is connected to the L CD display screen for displaying the specific occurrence position and severity level of the fire.
Preferably, the control system further comprises an alarm indicator light, and the output end of the fire alarm controller is connected with the alarm indicator light, and is used as an indicator mark and also used for signal communication and direction indication of rescue and emergency staff.
Preferably, the control system further comprises a GPS device, the GPS device is installed in the smoke alarm, and the GPS device is connected to an input end of the fire alarm controller, and is used for locating a specific fire occurrence position.
The type of the smoke sensor is MQ-2, the type of the temperature sensor is DS18B20, the type of the fire alarm controller is JB-QB-GST200/242 and adopts a wall-mounted structure, the type of the GPS device is U-B L OX L EA-6S, the type of the L CD display screen is 2.2 inches L CD display screen, and the type of the alarm indicator lamp is GBS-24V.
The exhaust duct of the subway interval tunnel has the section smoke flow rate not less than 2m/s and the smoke flow rate not more than 11m/s according to the single-hole interval tunnel.
The smoke discharge amount of the platform and the station hall of the underground station in a fire disaster is m according to the building area of the smoke-proof subarea3/(m2Min) calculation.
A method for controlling ventilation and smoke exhaust optimization of a subway station, as shown in fig. 2, comprises the following steps:
step 1, data acquisition:
a smoke sensor and a temperature sensor in the smoke alarm respectively detect the smoke concentration and the temperature of a platform area in real time, and the smoke alarm judges whether an electric field of the platform area is balanced and whether the temperature of the platform area is within a safety threshold range; when the electric field of the platform area is balanced and the temperature is within the range of the safety threshold, the smoke sensor and the temperature sensor continue to respectively detect the smoke concentration and the temperature of the platform area in real time; when the electric field of the platform area is unbalanced or the temperature is not within the range of the safety threshold value, the smoke alarm identifies the smoke concentration and gives an alarm, and meanwhile, a fire smoke signal is transmitted to the coded switching value addressing alarm device through the signal conditioning circuit.
The alarm principle is as follows: when a fire disaster occurs, open fire is generated at a fire source of the fire disaster, and a large amount of harmful smoke harmful to human bodies is accompanied, smoke particle molecules are freely diffused along with air, a smoke sensor in a smoke alarm above a platform identifies a smoke signal of the fire disaster, smoke ions change ionization balance of an ionization field in the smoke alarm, and therefore the smoke alarm is triggered.
Step 2, identifying the position of a fire source:
the coded switching value addressing alarm device determines the code of the alarm smoke alarm device, further determines the position code of the fire source, and simultaneously the GPS device uploads the position information of the fire place.
And 3, transmitting the fire information to a fire alarm controller, wherein the fire alarm controller responds:
the fire smoke signal, the fire source position coding information and the position information of a fire place are uploaded to a fire alarm controller through a system bus, and the fire alarm controller carries out classified identification processing on the received fire smoke signal; meanwhile, the disaster alarm controller can carry out sound-light alarm warning, and simultaneously transmit alarm signals to the centralized alarm in the alarm control room.
And 4, carrying out fuzzy calculation by the fire alarm controller according to the fire level and the received fire information, determining the opening position and the opening degree of the exhaust valve and carrying out fuzzy control.
The fuzzy control process of the fire alarm controller is as follows:
(1) judging the smoke concentration level by a fire alarm controller, if the smoke concentration is higher than the set high-level smoke concentration level, sending an instruction to an exhaust valve opening controller, adjusting the opening of an exhaust outlet to be maximum, and making a first-level special response by a tunnel fan and an exhaust valve; the fire alarm controller also processes signals identified and transmitted by the temperature sensor, and sends an instruction to the exhaust valve opening controller to adjust the opening of the exhaust outlet to the maximum if the temperature exceeds the set high-grade temperature level, and the tunnel fan and the exhaust valve both make a first-grade response;
(2) if the smoke concentration is higher than the set middle-level smoke concentration level and lower than the high-level smoke concentration level, sending an instruction to an exhaust valve opening controller, adjusting the opening of an exhaust outlet to the middle-level opening, and making a second-level response by a tunnel fan and the exhaust valve; if the temperature is higher than the set middle-level temperature level and lower than the high-level temperature level, sending an instruction to an exhaust valve opening controller, adjusting the opening of an exhaust outlet to the middle-level opening, and making a second-level response by a tunnel fan and an exhaust valve;
(3) if the smoke concentration is lower than the set middle-level smoke concentration level, sending an instruction to an exhaust valve opening controller, adjusting the opening of an exhaust outlet to be a low-level opening, and making three-level special responses by a tunnel fan and the exhaust valve; if the temperature is lower than the set middle-level temperature level, sending an instruction to an exhaust valve opening controller, adjusting the opening of an exhaust outlet to be a low-level opening, and making three-level special responses on a tunnel fan and the exhaust valve;
wherein, the smoke concentration control mode and the temperature control mode adopt a parallel control system, and the priority is the same; the first level response is higher than the second level response, the second level response is higher than the third level response, and when the smoke concentration control mode and the temperature control mode at the same coding position have different response levels, a high-level response processing scheme is preferentially selected.
And 5, responding to the tunnel fan and the exhaust valve:
after the fire alarm controller determines the opening position and the opening degree of the exhaust valve, the determined command signals of the opening position and the opening degree of the exhaust valve are sent to a tunnel fan controller in a tunnel and exhaust valve opening controllers in a platform and the tunnel, so that the removal of polluted air in a subway station is realized, and fresh air is brought in. Wherein the working principle of the tunnel fan is as follows: one part of air in the subway tunnel fan becomes high-speed airflow after doing work through the blades. Based on the impact transmission principle, the high-speed airflow transmits energy to the other part of the air in the air chamber to drive the air to flow backwards together, so that the air in the air chamber is pushed to one end, and fresh air is fed in. When the air flow speed is reduced to a certain value, the next group of fans can drive the air to flow continuously, so that the internal polluted air can be removed.
Preferably, the L CD display screen displays the specific location and severity level of the fire while the treatment regimen is responding.
When the smoke alarm gives an alarm, the alarm indicator lamp is turned on; when fire smoke signals are transmitted in the system, the alarm indicator lights flash; when the system receives a feedback signal of the fire alarm controller, the alarm indicator lamp is normally on; when a new fire smoke signal is transmitted, the alarm indicator lamp is turned on again;
when the tunnel fan and the exhaust valve do primary individual response, the alarm indicator lamp flashes at high frequency; when the tunnel fan and the exhaust valve do secondary differential response, the alarm indicator lamp flashes at the intermediate frequency; when the tunnel fan and the exhaust valve do three-level special response, the alarm indicator lamp flashes at low frequency.
In conclusion, when a fire disaster occurs in the subway station, the invention can sense the fire disaster occurrence situation in time through the smoke alarm, and transmit a fire disaster signal and a fire disaster occurrence position signal to the central fire disaster alarm controller monitoring area in real time. The fire alarm controller sends a control signal to an exhaust valve and a tunnel fan in a fire occurrence area to exhaust fire smoke at a fixed point, so that the optimal treatment of the emission of the fire smoke is realized when a fire occurs in a subway station.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. The ventilation and smoke exhaust optimization control method for the subway station is characterized in that based on a subway station ventilation and smoke exhaust optimization control system, the ventilation and smoke exhaust optimization control system comprises a plurality of smoke alarms, a signal conditioning circuit, a coding switching value addressing alarm device, a fire alarm controller, a GPS device, a tunnel fan and an exhaust valve;
the smoke alarm devices are uniformly arranged above the platform area, and each smoke alarm device comprises a temperature sensor and a smoke sensor; the output ends of the temperature sensor and the smoke sensor are respectively connected with the input end of the coded switching value addressing alarm device through a signal conditioning circuit; the output end of the coded switching value addressing alarm device is connected with the input end of a fire alarm controller, the GPS device is installed in the smoke alarm, and the GPS device is connected to the input end of the fire alarm controller; the output end of the fire alarm controller is respectively connected with a tunnel fan and an exhaust valve, the tunnel fan is arranged in the tunnel, the exhaust valve is used for controlling the opening of an exhaust outlet, and the exhaust outlet is arranged in the platform and the tunnel;
the ventilation and smoke exhaust optimization control method comprises the following steps:
step 1, data acquisition:
a smoke sensor and a temperature sensor in the smoke alarm respectively detect the smoke concentration and the temperature of a platform area in real time, and the smoke alarm judges whether an electric field of the platform area is balanced and whether the temperature of the platform area is within a safety threshold range; when the electric field of the platform area is balanced and the temperature is within the range of the safety threshold, the smoke sensor and the temperature sensor continue to respectively detect the smoke concentration and the temperature of the platform area in real time; when the electric field of the platform area is unbalanced or the temperature is not within the range of the safety threshold, the smoke alarm identifies and alarms the smoke concentration and transmits a fire smoke signal to the coded switching value addressing alarm device through the signal conditioning circuit;
step 2, identifying the position of a fire source:
the coding switching value addressing alarm device determines the coding of the alarm smoke alarm device so as to determine the position coding of the fire source of the fire, and meanwhile, the GPS device uploads the position information of the fire place;
and 3, transmitting the fire information to a fire alarm controller, wherein the fire alarm controller responds:
the fire smoke signal, the fire source position coding information and the position information of a fire place are uploaded to a fire alarm controller through a system bus, and the fire alarm controller carries out classified identification processing on the received fire smoke signal;
step 4, the fire alarm controller performs fuzzy calculation according to the fire level and the received fire information, determines the opening position and the opening degree of the exhaust valve and performs fuzzy control;
and 5, responding to the tunnel fan and the exhaust valve:
after the fire alarm controller determines the opening position and the opening degree of the exhaust valve, the instruction signals of the determined opening position and the opening degree of the exhaust valve are sent to a tunnel fan controller in a tunnel and exhaust valve opening controllers in a platform and the tunnel, so that the removal of polluted air in a subway station is realized, and fresh air is brought in;
wherein the fuzzy control process of the fire alarm controller in the step 4 is as follows:
(1) judging the smoke concentration level by a fire alarm controller, if the smoke concentration is higher than the set high-level smoke concentration level, sending an instruction to an exhaust valve opening controller, adjusting the opening of an exhaust outlet to be maximum, and making a first-level special response by a tunnel fan and an exhaust valve; the fire alarm controller also processes signals identified and transmitted by the temperature sensor, and sends an instruction to the exhaust valve opening controller to adjust the opening of the exhaust outlet to the maximum if the temperature exceeds the set high-grade temperature level, and the tunnel fan and the exhaust valve both make a first-grade response;
(2) if the smoke concentration is higher than the set middle-level smoke concentration level and lower than the high-level smoke concentration level, sending an instruction to an exhaust valve opening controller, adjusting the opening of an exhaust outlet to the middle-level opening, and making a second-level response by a tunnel fan and the exhaust valve; if the temperature is higher than the set middle-level temperature level and lower than the high-level temperature level, sending an instruction to an exhaust valve opening controller, adjusting the opening of an exhaust outlet to the middle-level opening, and making a second-level response by a tunnel fan and an exhaust valve;
(3) if the smoke concentration is lower than the set middle-level smoke concentration level, sending an instruction to an exhaust valve opening controller, adjusting the opening of an exhaust outlet to be a low-level opening, and making three-level special responses by a tunnel fan and the exhaust valve; if the temperature is lower than the set middle-level temperature level, sending an instruction to an exhaust valve opening controller, adjusting the opening of an exhaust outlet to be a low-level opening, and making three-level special responses on a tunnel fan and the exhaust valve;
wherein, the smoke concentration control mode and the temperature control mode adopt a parallel control system, and the priority is the same; the first level response is higher than the second level response, the second level response is higher than the third level response, and when the smoke concentration control mode and the temperature control mode at the same coding position have different response levels, a high-level response processing scheme is preferentially selected.
2. The method for optimally controlling ventilation and smoke exhaust of a subway station as claimed in claim 1, wherein said system further comprises L CD display screen, and the output end of said fire alarm controller is connected to L CD display screen for displaying the specific location and severity level of fire.
3. The subway station ventilation and smoke exhaust optimization control method as claimed in claim 2, wherein said ventilation and smoke exhaust optimization control system further comprises an alarm indicator lamp, and an output end of said fire alarm controller is connected to said alarm indicator lamp.
4. The subway station ventilation and smoke exhaust optimization control method according to claim 3, wherein the type of the smoke sensor is MQ-2 type, the type of the temperature sensor is DS18B20 type, the type of the fire alarm controller is JB-QB-GST200/242 type, the type of the GPS device is U-B L OX L EA-6S type, the L CD display screen is 2.2 inches L CD display screen, and the type of the alarm indicator lamp is GBS-24V.
5. The method for optimally controlling ventilation and smoke exhaust of a subway station as claimed in claim 1, wherein said L CD display screen displays the specific location and severity level of fire while the processing scheme is responding.
6. The subway station ventilation and smoke exhaust optimization control method as claimed in claim 1,
when the smoke alarm gives an alarm, the alarm indicator lamp is turned on; when fire smoke signals are transmitted in the system, the alarm indicator lights flash; when the system receives a feedback signal of the fire alarm controller, the alarm indicator lamp is normally on; when a new fire smoke signal is transmitted, the alarm indicator lamp is turned on again;
when the tunnel fan and the exhaust valve do primary individual response, the alarm indicator lamp flashes at high frequency; when the tunnel fan and the exhaust valve do secondary differential response, the alarm indicator lamp flashes at the intermediate frequency; when the tunnel fan and the exhaust valve do three-level special response, the alarm indicator lamp flashes at low frequency.
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| CN110634263A (en) * | 2019-09-15 | 2019-12-31 | 杭州拓深科技有限公司 | Smoke detector and acquisition concentration control method thereof |
| CN113643497A (en) * | 2020-05-11 | 2021-11-12 | 广东毓秀科技有限公司 | Based on subway equipment smog identification system that catches fire |
| CN112282823A (en) * | 2020-11-06 | 2021-01-29 | 天津大学 | Regional control subway platform smoke exhaust method |
| CN114832257A (en) * | 2021-07-09 | 2022-08-02 | 长城汽车股份有限公司 | Vehicle extinguishing device and vehicle |
| CN113674503A (en) * | 2021-09-23 | 2021-11-19 | 深圳达温技术服务有限公司 | Infrared temperature fire alarm capable of being connected to fire protection bus and alarm method |
| CN115311803A (en) * | 2022-07-31 | 2022-11-08 | 东风汽车集团股份有限公司 | Garage safety early warning method, device, equipment and readable storage medium |
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| CN105678942A (en) * | 2016-04-01 | 2016-06-15 | 江南大学 | Intelligent fire alarm system and control method thereof |
| CN206400729U (en) * | 2017-01-20 | 2017-08-11 | 东莞市商航电子科技有限公司 | A kind of fire alarm detection broadcast safety-protection system applied to interim exhibition room |
| CN207068331U (en) * | 2017-08-25 | 2018-03-02 | 中国安全生产科学研究院 | A kind of subway is grown up section fire test device |
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| CN107833411A (en) * | 2017-10-27 | 2018-03-23 | 上海应用技术大学 | Subway station accident emergency evacuation is saved oneself command system |
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