CN112396792A - Subway escalator pit fire monitoring and processing system and method - Google Patents
Subway escalator pit fire monitoring and processing system and method Download PDFInfo
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- CN112396792A CN112396792A CN202011098533.XA CN202011098533A CN112396792A CN 112396792 A CN112396792 A CN 112396792A CN 202011098533 A CN202011098533 A CN 202011098533A CN 112396792 A CN112396792 A CN 112396792A
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B17/00—Fire alarms; Alarms responsive to explosion
- G08B17/10—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C3/00—Fire prevention, containment or extinguishing specially adapted for particular objects or places
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C37/00—Control of fire-fighting equipment
- A62C37/36—Control of fire-fighting equipment an actuating signal being generated by a sensor separate from an outlet device
- A62C37/38—Control of fire-fighting equipment an actuating signal being generated by a sensor separate from an outlet device by both sensor and actuator, e.g. valve, being in the danger zone
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
- F24F3/12—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling
- F24F3/16—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by purification, e.g. by filtering; by sterilisation; by ozonisation
Abstract
The application relates to a subway escalator pit fire monitoring and processing system and a method, wherein the system comprises: the system comprises a fire signal acquisition device, an escalator controller, a smoke collection device, an aroma release device and a server, wherein the fire signal acquisition device is used for acquiring fire data in a pit of the escalator in real time and uploading the fire data to the server; the fire data includes smoke concentration data; the server is used for receiving the smoke concentration data and outputting a first control signal when the smoke concentration is judged to accord with a first threshold range; the smoke collecting device is used for collecting smoke in the pit of the escalator; the server outputs a second control signal when judging that the smoke concentration accords with the second threshold range; the aromatic releasing device is used for releasing aromatic gas, so that the fire accident in the pit of the escalator can be monitored in real time, and the panic of passengers caused by faults such as smoke generated by a brake disc is relieved.
Description
Technical Field
The application relates to the technical field of escalator safety, in particular to a subway escalator pit fire monitoring and processing system and method.
Background
At present, escalators are typical devices for transporting passengers in public places. With the rapid development of the modern Chinese social economy and the rapid advance of the urbanization process, escalators are increasingly applied to places such as markets, airports, docks, subways, hotels and the like.
Of course, the normal operation of an escalator also requires a lot of electrical equipment to support, such as cables, electrical components, etc. However, as the service time of the electrical equipment increases, the electrical equipment can gradually age and be influenced by the service environment, the electrical equipment in the pit of the escalator can break down, and a fire accident can happen; for example, the brake disc may be smoked after a long time of use, and smoke and pungent smell are easily emitted from the pit of the escalator to a waiting area, thereby causing panic of a waiting passenger, resulting in unnecessary secondary injuries such as screaming, running and evacuating, pushing and falling down, even treading and the like of the passenger due to panic.
Content of application
In order to realize real-time monitoring of fire incidents in an escalator pit and reduce panic of passengers caused by faults such as smoke emission of a brake disc, the application provides a subway escalator pit fire monitoring and processing system and method.
The application provides a subway automatic escalator pit fire control processing system adopts following technical scheme:
a subway escalator pit fire monitoring processing system comprises: a fire signal acquisition device,
The fire disaster alarm system comprises an escalator controller, a smoke collecting device, an aroma releasing device and a server, wherein the fire disaster signal collecting device, the smoke collecting device and the aroma releasing device are all in communication connection with the server, and the escalator controller is in communication connection with the server; wherein the content of the first and second substances,
the fire signal acquisition device is used for acquiring fire data in the pit of the escalator in real time and uploading the fire data to the server; the fire data comprises smoke concentration data;
the server is used for receiving the smoke concentration data and outputting a first control signal when the smoke concentration is judged to accord with a first threshold range;
the smoke collecting device is used for starting according to the received first control signal so as to collect smoke in the pit of the escalator;
the server is further used for continuously receiving the smoke concentration data after the smoke collecting device is started, and outputting a second control signal when the smoke concentration is judged to accord with a second threshold range; wherein a minimum value of the first threshold range is greater than a maximum value of the second threshold range;
the fragrance releasing device is used for being started according to the received second control signal so as to release fragrance gas.
By adopting the technical scheme, the smoke collecting device is arranged to collect smoke in the pit of the escalator, smoke in the pit of the escalator can be reduced from drifting outside the pit, the fragrance releasing device is matched for releasing fragrance, the residual smell of the smoke in the pit of the escalator is reduced, the emotional tension of passengers caused by the smoke is relieved, unnecessary secondary damage caused by confusion of the passengers is relieved, the real-time monitoring on fire accidents in the pit of the escalator can be realized, and the panic of the passengers caused by faults such as smoke emission of a brake disc is relieved.
Preferably, a gas collection chamber is arranged on one side of the escalator pit, the smoke collection device is arranged in the gas collection chamber, the smoke collection device comprises an induced draft device, a gas storage device, a gas collection pipeline and an electric pressure valve, an air inlet of the induced draft device is communicated to the escalator pit, an air outlet of the induced draft device is connected to an inlet of the gas storage device through the gas collection pipeline, and the electric pressure valve is arranged on the gas collection pipeline.
By adopting the technical scheme, the air inducing device leads the smoke into the gas storage device through the gas collecting pipeline, thereby realizing the collection work of the smoke.
Preferably, the smoke collecting device further comprises a gas purifying device, and a gas inlet of the gas purifying device is connected with a gas outlet of the gas storage device.
Through adopting above-mentioned technical scheme, the setting of air purification device can purify the smog that leads into in the gas storage device through the induced air device, discharges out after the purification, reduces the replacement to gas storage device.
Preferably, the gas storage device comprises one of a gas bag, a gas bottle or a gas tank.
By adopting the technical scheme, the selection of various gas storage devices can be realized.
Preferably, a fire room is further arranged on one side of the escalator pit, and the fire data further comprise temperature data; the system also comprises a fire-fighting device, wherein the fire-fighting device is arranged in the fire-fighting chamber;
the fire-fighting extinguishing device comprises a bottle body which stores fire-fighting medium and is pressurized, a spraying assembly connected to a bottle opening and an electric valve, wherein a spraying opening of the spraying assembly is communicated to the escalator pit;
the server is further used for receiving the temperature data and outputting a third control signal when the temperature is judged to accord with a third threshold range;
and the electric valve is started according to the received third control signal so as to extinguish the open fire in the pit of the escalator.
By adopting the technical scheme, the fire-fighting device is used for extinguishing open fire in the pit of the escalator; it can prevent that bigger conflagration from taking place, strives for the time for the staff.
Preferably, the system further comprises an external controller, the fire signal acquisition device, the smoke collection device, the aroma release device and the fire fighting device are all in communication connection with the external controller, and the external controller is in communication connection with the server.
Through adopting above-mentioned technical scheme, the setting of peripheral hardware controller conveniently carries out the independent control to conflagration signal acquisition device, smog collection device, fragrant release device and fire control extinguishing device.
Preferably, the system also comprises an escalator power supply circuit and an external power supply circuit which are arranged independently, and an escalator power supply switch is arranged in the escalator power supply circuit; wherein the content of the first and second substances,
the escalator power supply circuit is used for supplying power to the escalator controller;
the peripheral power circuit is used for providing power for the fire signal acquisition device, the smoke collection device, the aroma release device and the fire extinguishing device;
the escalator power switch is used for cutting off the escalator power circuit according to a received first switch control signal, and the first switch control signal is output when the server judges according to the received temperature data and judges that the temperature data accords with a third threshold range.
Through adopting above-mentioned technical scheme, the staircase power supply circuit and the peripheral hardware power supply circuit that mutually independent set up for mutual independence, mutually noninterfere between staircase controller and fire signal collection system, smog collection device, fragrant release device and the fire control extinguishing device.
Preferably, the system further comprises a mobile terminal, the mobile terminal is in communication connection with the server, the mobile terminal is used for receiving alarm information, the alarm information is issued by the server according to judgment of the received fire data, and the alarm information comprises escalator attribute information, escalator operation state information, peripheral device operation state information, an alarm state and map navigation information.
By adopting the technical scheme, the mobile terminal is arranged for receiving the alarm information, so that a worker can conveniently go to the site of the escalator pit with the fault for processing according to the content of the alarm information.
The application provides a subway escalator pit fire monitoring processing method adopts following technical scheme:
a fire monitoring and processing method for a subway escalator pit comprises the following steps:
acquiring fire data in a pit of the escalator in real time through a fire signal acquisition device and uploading the fire data to the server; the fire data comprises smoke concentration data and temperature data;
the smoke collecting device is started according to the received first control signal so as to collect smoke in the pit of the escalator; the first control signal is output when the server judges that the smoke concentration accords with a first threshold range according to the received smoke concentration data;
the fragrance releasing device is started according to the received second control signal to release fragrance gas; the second control signal is output when the server continuously receives the smoke concentration data after the smoke collecting device is started and judges that the smoke concentration accords with a second threshold range.
By adopting the technical scheme, the smoke collecting device is arranged to collect smoke in the escalator pit, smoke in the escalator pit can be reduced and can float out of the pit, the fragrance releasing device is matched for releasing fragrance, the residual smell of the smoke in the escalator pit is reduced, the emotional tension of passengers caused by the smoke is reduced, unnecessary secondary damage caused by the passengers in a hurry mode is reduced, and subway management personnel can orderly evacuate the passengers according to the field condition.
Further, the method further comprises:
and receiving a first switch control signal through the escalator power switch, and cutting off the escalator power circuit, wherein the first switch control signal is output when the server judges according to the received temperature data and judges that the temperature data accords with a third threshold range.
By adopting the technical scheme, the escalator power switch is arranged and used for cutting off the escalator power circuit when the server judges that the temperature is higher than a preset temperature.
To sum up, the beneficial technical effect of this application does: the device is characterized in that a smoke collecting device is arranged to collect smoke in the pit of the escalator, so that the smoke in the pit of the escalator is prevented from escaping out of the pit of the escalator, and an aroma releasing device is arranged to release aroma gas, reduce the residual smell of the smoke in the pit of the escalator, reduce the nervous atmosphere caused by the smoke, reduce the panic mood of passengers and reduce unnecessary secondary injury; the fire-fighting device is used for extinguishing open fire in the pit of the escalator to prevent larger fire from happening and strive for time for workers; the effect of real-time monitoring and processing of fire accidents in the escalator pit is achieved.
Drawings
Fig. 1 shows a schematic block diagram of a subway escalator pit fire monitoring processing system according to an embodiment of the present disclosure;
fig. 2 shows a schematic view of the arrangement of devices in an escalator pit of a subway escalator pit fire monitoring and handling system according to an embodiment of the present disclosure;
fig. 3 shows a schematic block diagram of a subway escalator pit fire monitoring system incorporating a peripheral controller according to an embodiment of the present disclosure;
fig. 4 shows a schematic block diagram of a subway escalator pit fire monitoring processing system according to an embodiment of the present disclosure;
fig. 5 shows a flowchart of a smoke concentration data determination process of a subway escalator pit fire monitoring processing method according to an embodiment of the present disclosure;
fig. 6 shows a flowchart of a judgment process of temperature data of a subway escalator pit fire monitoring processing method according to an embodiment of the present disclosure.
In the figure, 100, an escalator; 101. an escalator controller; 102. an escalator power supply circuit; 200. A server; 300. a mobile terminal; 400. a peripheral controller; 401. a peripheral power supply circuit; 501. a fire signal acquisition device; 502. a fume collection device; 503. an aroma release device; 504. a fire extinguishing device; 600. an electric diverter switch.
Detailed Description
The present application is described in further detail below with reference to figures 1-6.
The embodiment of the application discloses subway automatic escalator pit fire monitoring processing system. Referring to fig. 1, including an escalator controller 101, the escalator controller 101 is used to control the shutdown of an escalator 100, and the system further includes a fire signal collecting device 501, a smoke collecting device 502, an aroma releasing device 503, and a server 200.
The fire signal acquisition device 501, the smoke collection device 502 and the aroma release device 503 are all in communication connection with the server 200. The fire signal acquisition device 501, the smoke collection device 502 and the aroma release device 503 are internally provided with independent controllers, and the controllers and the server 200 can be connected through a network, a converter or a serial port, so that data uploading is realized.
When a network connection is used, the controller is connected to a local area network through a TCP/IP port to communicate with the server 200 (CS). In this manner, the IP address of the controller needs to be set.
When the converter is used for connection, the controller is connected to the TCP/IP converter through the 485COM port, and the converter is connected to the server 200 through the lan.
When serial port connection is adopted, the controller is connected to the server 200 through the 485 converter, and in this way, the serial port number of the server 200 connected with the 485 converter needs to be set.
And the fire signal acquisition device 501 is used for acquiring fire data in the pit of the escalator 100 in real time. The fire data includes smoke concentration data, and specifically, a smoke sensor may be integrated inside the fire signal acquisition device 501 to detect smoke concentration, and a smoke analog electrical signal detected by the smoke sensor is subjected to signal preprocessing including filtering and amplification and a/D conversion. The fire signal acquisition device 501 uploads the acquired smoke concentration data to the server 200, the server 200 receives the smoke concentration data uploaded by the fire signal acquisition device 501, whether the smoke concentration accords with a first threshold range is judged according to the received smoke concentration data, if yes, a first control signal is output, and the first control signal is used for controlling the starting of the smoke collection device 502 so as to collect the smoke concentration in the pit of the escalator 100 at present; if not, the smoke concentration is continuously collected and judged. In one example, the first threshold range can be set to greater than or equal to 50 PPM.
Referring to fig. 1 and 2, a gas collection chamber is arranged in a pit of the escalator 100 at a position close to the side surface of a brake disc of the escalator 100, and a smoke collection device 502 is installed in the gas collection chamber. It will be appreciated that the plenum may be a separate space constructed in advance when the escalator 100 is installed, or may be created laterally of the pit of the currently-in-use escalator 100.
The smoke collecting device 502 comprises an induced draft device, a gas storage device and a gas purifying device, wherein the induced draft device comprises a small induced draft fan, an air inlet of the induced draft fan is communicated with the pit of the escalator 100, and a fireproof grating can be arranged at the air inlet, so that when the induced draft fan absorbs smoke, if the smoke is accompanied by sparks or flames, the sparks or the flames are not sucked; the air outlet of the draught fan is communicated with a gas collecting pipeline and is communicated with the air inlet of the gas storage device through the gas collecting pipeline, and the gas storage device can adopt any one of an air bag, a gas cylinder or a gas box. And the gas collecting pipeline is provided with an electric pressure valve which is opened and closed according to the detected gas pressure in the gas storage device so as to control the collection of the smoke.
The air purifying device may be an air purifier, or may be a related art air purifying structure, which is not limited herein. Taking a mature air purifier product as an example, the air inlet of the air purifier is communicated with the air outlet of the air storage device.
When the smoke collection and purification work is carried out, the induced draft fan is started, the induced draft fan introduces smoke emitted from the pit of the escalator 100, the smoke passes through the gas collecting pipeline and the gas storage device in sequence, finally, the smoke reaches the air purifier, air with the smoke is purified, and the smoke is discharged after the purification is finished.
It will be appreciated that the purification apparatus may be selectively installed according to the actual situation, and that the gas storage apparatus of a fixed capacity may be employed to collect the fumes in view of the monitoring of a small amount of fumes in the pit of the escalator 100.
Smoke is continuously collected through the smoke collecting device 502, the smoke concentration in the pit of the escalator 100 is gradually reduced, the server 200 continuously receives the smoke concentration data collected through the fire signal collecting device 501, and the smoke concentration data is judged, namely whether the smoke concentration meets a second threshold range is judged, and if yes, the server 200 outputs a second control signal; the second control signal is used to control the actuation of the fragrance delivery device 503. If not, the collection and judgment of the smoke concentration data are continued. In one example, the second threshold range may be set to less than 50 PPM.
A storage chamber is arranged at a position below the gas collection chamber in the pit of the escalator 100, and the fragrance releasing device 503 is installed in the storage chamber, so that the storage chamber can be an independent space constructed in advance when the escalator 100 is installed, or can be obtained by opening up the side direction of the pit of the escalator 100 which is put into use at present.
The aroma release device 503 comprises an air freshener, an air outlet of the air freshener is communicated with a pit of the escalator 100, the outer wall of the storage chamber is provided with fireproof plates to prevent the air freshener from being affected after fire hazard occurs, the air freshener is further provided with an electric valve, and the electric valve controls the air freshener to be opened according to a second control signal sent by the server 200.
In an application example of smoke emission of a brake disc, when the server 200 judges that smoke concentration data meet a second threshold range, outputting a first control instruction, wherein the first control instruction controls an induced draft fan to slowly weaken the power of the induced draft fan until the induced draft fan stops operating; the server 200 continuously acquires the smoke concentration data acquired by the fire signal acquisition device 501, and judges whether the smoke concentration data is always kept within a second threshold value range within a preset time, if so, the brake disc does not smoke any more, and the induced draft fan does not need to be started again; if not, namely the smoke concentration data exceeds the second threshold range, which indicates that the brake disc still smokes, the server 200 outputs the first control signal again to control the induced draft fan to be started, and meanwhile, the server 200 still continuously judges whether the smoke concentration is within the second threshold range. In one example, the preset time range may be set to be between 5-10 s.
Referring to fig. 1, the fire data in the pit of the escalator 100 further includes temperature data, and specifically, a temperature sensor may be integrated in the fire signal acquisition device 501 to detect the temperature, and perform signal preprocessing and a/D conversion on a temperature analog electrical signal detected by the temperature sensor, where the preprocessing includes filtering and amplifying. The fire signal acquisition device 501 uploads the acquired temperature data to the server 200, the server 200 receives the temperature data uploaded by the fire signal acquisition device 501, the server 200 judges according to the received temperature data and judges whether the temperature data meets a third threshold range, if so, a third control signal is output and used for controlling the starting of the fire-fighting device 504 to extinguish the fire in the pit of the escalator 100 at present; if not, the temperature data is continuously judged and collected. In one example, the third threshold range may be set to 60 ℃ or less.
Referring to fig. 2, a fire room, which is an independent space constructed in advance when the escalator 100 is installed, is provided at a position below a brake disc side of the escalator 100 pit; a fire-fighting device 504 is installed in the fire-fighting chamber, the fire-fighting device 504 comprises a pressurized bottle body storing fire-fighting medium, a spraying assembly connected to the bottle mouth and an electric valve, and the fire-fighting medium can be CO2 or dry powder; the spraying assembly adopts the spraying assembly of the existing fire extinguisher, and the spraying orifice of the spraying assembly is communicated to the pit of the escalator 100; the electrically operated valve is in communication connection with the server 200, and the electrically operated valve controls whether the fire-fighting device 504 is started or not according to a second control instruction sent by the server 200; after the fire fighting device 504 is turned on, the jetting assembly is used to extinguish a fire in the pit of the escalator 100.
Referring to fig. 3, in one embodiment, the system may further include a peripheral controller 400, the peripheral controller 400 is connected to the server 200, and the fire signal collecting device 501, the smoke collecting device 502, the aroma releasing device 503 and the fire extinguishing device 504 are connected to the peripheral controller 400. The peripheral controller 400 and the server 200 may be connected through a network, a converter, or a serial port, so as to upload data.
When network connection is used, the peripheral controller 400 communicates with the server 200 (CS) by connecting to a local area network through a TCP/IP interface. In this manner, the IP address of the peripheral controller 400 needs to be set.
When the converter is used for connection, the peripheral controller 400 is connected to the TCP/IP converter through the 485COM port, and the converter is connected to the server 200 through the lan.
When serial port connection is adopted, the peripheral controller 400 is connected to the server 200 through the 485 converter, and in this way, the serial port number of the server 200 connected with the 485 converter needs to be set.
Referring to fig. 3 and 4, the escalator controller 101 is powered by an escalator power supply circuit 102; the fire signal acquisition device 501, the smoke collection device 502, the aroma release device 503 and the fire fighting device 504 are all powered by the external power circuit 401, and the escalator power circuit 102 and the external power circuit 401 can be arranged independently.
An escalator power switch is arranged in the escalator power circuit 102, and the escalator power circuit 102 is in communication connection with the escalator controller 101. The server 200 judges according to the received temperature data, if the temperature data is within the third threshold range, the first switch control signal is output, the escalator controller 101 receives the first switch signal sent by the server 200 and sends a third control instruction, and the escalator power switch controls to cut off the escalator power circuit 102 through the received third control instruction, so that the personal safety of passengers is prevented from being damaged by larger fire.
An electric change-over switch 600 can be further arranged between the peripheral power supply circuit 401 and the escalator power supply circuit 102, at ordinary times, the peripheral device can supply power through the escalator power supply circuit 102, when an accident occurs, the working current of the escalator power supply circuit 102 can be detected through a current transformer, once the working current is detected to be abnormal, after judgment, the electric change-over switch 600 is controlled to be turned on, physical cut-off of the escalator power supply circuit 102 and the peripheral power supply circuit 401 is achieved, and the peripheral power supply circuit 401 is started, so that the peripheral device can be always in a normal power supply state at ordinary times, the peripheral power supply circuit 401 can be in a cold standby state or a hot standby state, when the peripheral power supply circuit is in the cold standby state, electric energy can be saved.
It is understood that the electric changeover switch 600 may be replaced with a BZT device (standby power automatic switching device) in the related power technology.
Further, a camera is arranged at the upper run port or the lower run port of the escalator 100, so that images or videos of passengers on the escalator 100 can be acquired in real time. If the escalator 100 is in a descending state, a camera is installed at a position close to the position right above a descending opening of the escalator, so that the camera irradiates downwards; if the escalator 100 is in an ascending state, a camera is installed at a position close to the position right above an ascending port of the escalator, so that the camera irradiates upwards; by acquiring images or videos of passengers on the escalator 100 in real time and uploading the images or videos to the server 200, for example, when the server 200 determines that fire data exceeds a preset threshold range, the determination of whether passengers are still left on the escalator 100 is started, and specifically, an image recognition technology (which is a technology known in the art and is not described herein again) may be adopted; when it is judged that there is no passenger on the escalator 100, the escalator controller 101 controls the escalator 100 to slowly stop running and performs a power-off process. In practical applications, the escalator 100 is provided with an electric door at the upper or lower entrance, and the electric door is used for opening or closing the upper or lower entrance to realize passing and no passing of the escalator 100. The electrically operated gate may be communicatively coupled to the peripheral controller 400; the server 200 may issue a command to the peripheral controller 400 to control the closing of the electric doors of the ascending and descending exits of the escalator by the peripheral controller 400 when it is determined that there is no passenger on the escalator 100, and may display "elevator trouble, no pass, please detour" and voice prompt by a voice device through the LED display screen.
Referring to fig. 1, the system further includes a mobile terminal 300, and the mobile terminal 300 is communicatively connected to the server 200. The mobile terminal 300 may include a smart phone, a PDA smart wearable device, or a handheld smart electronic device based on current use inside a subway system. The mobile terminal 300 may have an (escalator) management Application (APP) installed thereon. The subway manager holds the mobile terminal 300 by hand, and receives alarm information sent by the server 200, wherein the alarm information is sent by the server 200 after processing and judging according to the received fire data. Each abnormal judgment result can send out corresponding alarm information, for example: when the smoke concentration is judged to exceed the first threshold range, the server 200 synchronously sends alarm information to the mobile terminal 300.
The alarm information may include escalator 100 attribute information, escalator 100 operating state information, peripheral device operating state information, alarm state, and map navigation information; the escalator attribute information includes the number, specific position, equipment manufacturer and maintenance record of the escalator 100 stored in the server 200 in advance; the subway manager can know the specific position of the pit of the escalator 100 in which an accident occurs and the identity condition of the escalator 100 in which the accident occurs through the attribute information of the escalator received by the handheld terminal device, so that the rescue, inspection and maintenance work can be timely and accurately carried out on the escalator 100 in which the accident occurs, and the evacuation and transfer of waiting passengers near the escalator 100 are facilitated.
The running state information of the escalator 100 comprises normal running, stopping and faults, and the working personnel judge the running state of the escalator 100 at the moment according to the running state information of the escalator 100; the running state information of the peripheral devices comprises whether the fire signal acquisition device 501, the smoke collection device 502, the aroma release device 503 and the fire extinguishing device 504 are normally started or not, and if the fire extinguishing device is normally started, whether the fire extinguishing device normally works or not, so that one investigation and monitoring of each device is realized; the alarm state can be set as multi-level alarm, the alarm degrees of each level are different, including smoke, smoke is small, smoke is large, the escalator 100 is on fire, the fire is small, the fire is large, and the like, and workers can judge the fire condition in the pit of the escalator 100 through the alarm state, so that the number of people arriving at the pit of the escalator 100 and the time are determined; the map navigation information is the distance information between the current position of the worker and the pit of the escalator 100 sending the alarm information, so that the worker can rapidly arrive at the scene conveniently and the scene condition can be processed.
The application also discloses a subway escalator pit fire monitoring and processing method, and the main flow of the method is as follows with reference to fig. 5.
S11: smoke concentration data from within the pit of the escalator 100 is received.
Specifically, the fire data in the pit of the escalator 100 are collected in real time through the fire signal collecting device 501, the fire data in the pit of the escalator 100 comprise smoke concentration data, a smoke sensor can be integrated inside the fire signal collecting device 501 to detect smoke concentration, and smoke analog electric signals detected by the smoke sensor are subjected to signal preprocessing and A/D conversion, wherein the preprocessing comprises filtering and amplifying. The fire signal acquisition device 501 uploads the acquired smoke concentration data to the server 200, and the server 200 receives the smoke concentration data from the pit of the escalator 100 and then judges and processes the smoke concentration data.
S12: and judging whether the smoke concentration data meet a first threshold range.
The server 200 determines whether the smoke concentration meets a first threshold range according to the received smoke concentration data, and if so, outputs a first control signal and executes step S13; if not, the process returns to step S11.
S13: the fume collection device 502 is activated.
Specifically, the smoke is collected by the smoke collecting device 502, the smoke collecting device 502 comprises an air inducing device, a gas storage device and a gas purifying device, the air inducing device comprises a small induced draft fan, an air inlet of the induced draft fan is communicated with the pit of the escalator 100, and a fireproof grating can be arranged at the air inlet, so that when the induced draft fan absorbs the smoke, if the smoke is accompanied by a spark or a flame, the spark or the flame is not sucked; the air outlet of the draught fan is communicated with a gas collecting pipeline and is communicated with the air inlet of the gas storage device through the gas collecting pipeline, and the gas storage device can adopt any one of an air bag, a gas cylinder or a gas box. And the gas collecting pipeline is provided with an electric pressure valve which is opened and closed according to the detected gas pressure in the gas storage device so as to control the collection of the smoke. The air purifying device may be an air purifier, or may be a related art air purifying structure, which is not limited herein. Taking a mature air purifier product as an example, the air inlet of the air purifier is communicated with the air outlet of the air storage device.
S14: and judging whether the smoke concentration data meet a second threshold range.
Continuously collecting smoke through the smoke collection device 502, gradually reducing the smoke concentration in the pit of the escalator 100, continuously receiving the smoke concentration data collected through the fire signal collection device 501 by the server 200, judging whether the smoke concentration meets a second threshold range or not, if so, outputting a second control signal, and executing the step S15; if not, the step S14 is continuously executed.
S15: the fragrance delivery device 503 is activated.
Specifically, fragrance is released into the pit of the escalator 100 through the fragrance releasing device 503, the fragrance releasing device 503 comprises an air freshener, an air outlet of the air freshener is communicated with the pit of the escalator 100, and the outer wall of the storage chamber is provided with a fireproof plate to prevent the air freshener from being affected after fire disasters occur, the air freshener is further provided with an electric valve, and the electric valve controls the air freshener to be opened according to a second control signal sent by the server 200.
Referring to fig. 6, the method further includes:
s21: temperature data from within the pit of the escalator 100 is received.
The fire data in the pit of the escalator 100 are collected in real time through the fire signal collecting device 501, the fire data in the pit of the escalator 100 further comprise temperature data, a temperature sensor can be integrated inside the fire signal collecting device 501 to realize temperature detection, and temperature analog electric signals detected by the temperature sensor are subjected to signal preprocessing and A/D conversion, wherein the preprocessing comprises filtering and amplification. The fire signal acquisition device 501 uploads the acquired temperature data to the server 200, and the server 200 receives the temperature data from the pit of the escalator 100 and then performs judgment processing on the temperature data.
S22: and judging whether the temperature data meet a third threshold range.
The server 200 determines whether the temperature data matches the third threshold range, if so, outputs a third control signal, and executes step S23, otherwise, returns to step S21.
S23: the fire fighting device 504 is activated.
Specifically, the fire extinguishing device 504 includes a pressurized bottle storing fire extinguishing medium, a spraying assembly connected to the bottle opening, and an electrically operated valve, wherein the fire extinguishing medium may be CO2 or dry powder; the spraying assembly adopts the spraying assembly of the existing fire extinguisher, and the spraying orifice of the spraying assembly is communicated to the pit of the escalator 100; the electric valve is in communication connection with the peripheral controller 400, and the electric valve controls whether the fire-fighting device 504 is started or not according to a second control instruction sent by the peripheral controller 400; after the fire fighting device 504 is turned on, the jetting assembly is used to extinguish a fire in the pit of the escalator 100.
The method further comprises the following steps: the shutdown of the escalator 100 is controlled by the escalator controller 101; the starting of a fire signal acquisition device 501, a smoke collection device 502, an aroma release device 503 and a fire extinguishing device 504 are controlled by the peripheral controller 400; and receives alarm information from the server 200 through the mobile terminal 300, the alarm information being processed and judged by the server 200 according to the received fire data. Each abnormal judgment result can send out corresponding alarm information, for example: when the smoke concentration is judged to exceed the first threshold range, the server 200 synchronously sends alarm information to the mobile terminal 300.
The method further comprises the following steps: the escalator controller 101 supplies power to the escalator through an escalator power supply circuit 102; an escalator power switch is arranged in the escalator power circuit 102, and the escalator power circuit 102 is in communication connection with the escalator controller 101. The server 200 judges according to the received temperature data, if the temperature data is within the third threshold range, the first switch control signal is output, the escalator controller 101 receives the first switch signal sent by the server 200 and sends a third control instruction, and the escalator power switch controls to cut off the escalator power circuit 102 through the received third control instruction, so that the personal safety of passengers is prevented from being damaged by larger fire.
The fire signal acquisition device 501, the smoke collection device 502, the aroma release device 503 and the fire-fighting device 504 are all powered by an external power circuit 401, and the escalator power circuit 102 and the external power circuit 401 can be arranged independently; of course, an electric change-over switch 600 can be further arranged between the peripheral power supply circuit 401 and the escalator power supply circuit 102, at ordinary times, the peripheral device can supply power through the escalator power supply circuit 102, and when an accident occurs, the working current of the escalator power supply circuit 102 can be detected through a current transformer, once the working current is detected to be abnormal, after judgment, the electric change-over switch 600 is controlled to be turned on, physical disconnection between the escalator power supply circuit 102 and the peripheral power supply circuit 401 is realized, and the peripheral power supply circuit 401 is started, so that the peripheral device can be always in a normal power supply state at ordinary times, the peripheral power supply circuit 401 can be in a cold standby state or a hot standby state, when the peripheral power supply circuit is in the cold standby state, electric energy can be saved.
The fire accident in subway automatic escalator 100 pit is monitored in real time by the application, and different fire situations in automatic escalator 100 pit are processed in time by setting fire extinguishing device 504, smoke collecting device 502 and fragrance releasing device 503, so that the nervous atmosphere of passengers caused by the fire situations is relieved, the panic emotion of the passengers is reduced, and unnecessary secondary damage is reduced.
The embodiments of the present invention are preferred embodiments of the present application, and the scope of protection of the present application is not limited by the embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (10)
1. A subway escalator pit fire monitoring processing system is characterized by comprising: the fire signal acquisition device (501), the escalator controller (101), the smoke collection device (502), the aroma release device (503) and the server (200) are all in communication connection with the server (200), and the escalator controller (101) is in communication connection with the server (200); wherein the content of the first and second substances,
the fire signal acquisition device (501) is used for acquiring fire data in a pit of the escalator (100) in real time and uploading the fire data to the server (200); the fire data comprises smoke concentration data;
the server (200) is used for receiving the smoke concentration data and outputting a first control signal when the smoke concentration is judged to accord with a first threshold range;
the smoke collecting device (502) is used for starting according to the received first control signal so as to collect smoke in a pit of the escalator (100);
the server (200) is further used for continuously receiving the smoke concentration data after the smoke collection device (502) is started, and outputting a second control signal when the smoke concentration is judged to be in accordance with a second threshold range; wherein a minimum value of the first threshold range is greater than a maximum value of the second threshold range;
the aroma release device (503) is used for being started according to the received second control signal so as to release aroma gas.
2. A fire monitoring and processing system for a subway escalator pit as claimed in claim 1, wherein a gas collection chamber is provided at one side of the pit of the escalator (100), the smoke collection device (502) is provided in the gas collection chamber, the smoke collection device (502) comprises an air inducing device, a gas storage device, a gas collection pipeline and an electric pressure valve, an air inlet of the air inducing device is communicated to the pit of the escalator (100), an air outlet of the air inducing device is connected to an inlet of the gas storage device through the gas collection pipeline, and the electric pressure valve is provided on the gas collection pipeline.
3. A subway escalator pit fire monitoring and handling system as claimed in claim 2, wherein said smoke collecting device (502) further comprises a gas cleaning device, the gas inlet of said gas cleaning device being connected to the gas outlet of said gas storage device.
4. A subway escalator pit fire monitoring system as claimed in claim 2, wherein said gas storage means comprises one of an air bag, a gas cylinder or a gas tank.
5. A subway escalator pit fire monitoring and handling system as claimed in claim 1, characterized in that a fire room is further provided at one side of the pit of said escalator (100), said fire data further comprising temperature data; the system further comprises a fire fighting device (504), wherein the fire fighting device (504) is arranged in the fire fighting chamber;
the fire-fighting extinguishing device (504) comprises a bottle body which stores fire-fighting medium and is pressurized, a spraying assembly connected to a bottle opening and an electric valve, wherein a spraying opening of the spraying assembly is communicated to a pit of the escalator (100);
the server (200) is further used for receiving the temperature data, and outputting a third control signal when the temperature is judged to accord with a third threshold range;
the electric valve is used for being started according to the received third control signal so as to extinguish open fire in the pit of the escalator (100).
6. A fire monitoring and processing system for a subway escalator pit as claimed in claim 5, wherein said system further comprises an external controller (400), said fire signal collecting device (501), said smoke collecting device (502), said aroma releasing device (503) and said fire extinguishing device (504) are all connected with said external controller (400) in communication, said external controller (400) is connected with said server (200) in communication.
7. A subway escalator pit fire monitoring and processing system as claimed in claim 6, characterized in that, the system further comprises an escalator power supply circuit (102) and an external power supply circuit (401) which are independent of each other, and an escalator power supply switch is arranged in the escalator power supply circuit (102); wherein the content of the first and second substances,
the escalator power supply circuit (102) is used for supplying power to the escalator controller (101);
the peripheral power circuit (401) is used for supplying power to the fire signal acquisition device (501), the smoke collection device (502), the aroma release device (503) and the fire extinguishing device (504);
the escalator power switch is used for cutting off the escalator power circuit (102) according to a received first switch control signal, and the first switch control signal is output when the server (200) judges according to the received temperature data and judges that the temperature data accords with a third threshold range.
8. A fire monitoring and processing system for a subway escalator pit according to claim 1, characterized in that, the system further comprises a mobile terminal (300), the mobile terminal (300) is in communication connection with the server (200), the mobile terminal (300) is used for receiving alarm information, the alarm information is issued by the server (200) according to the judgment of the received fire data, and the alarm information includes escalator attribute information, escalator operating state information, peripheral equipment operating state information, alarm state and map navigation information.
9. A fire monitoring and processing method for a subway escalator pit, which is applied to the subway escalator pit fire monitoring and processing system according to any one of claims 1 to 8, and which comprises the following steps:
fire data in a pit of the escalator (100) are collected in real time through a fire signal collecting device (501) and uploaded to the server (200); the fire data comprises smoke concentration data and temperature data;
the smoke collection device (502) is started according to the received first control signal to collect smoke in the pit of the escalator (100); the first control signal is output when the server (200) judges that the smoke concentration accords with a first threshold range according to the received smoke concentration data;
the fragrance releasing device (503) is started according to the received second control signal to release fragrance gas; the second control signal is output when the server (200) continuously receives the smoke concentration data after the smoke collection device (502) is started and judges that the smoke concentration meets a second threshold range.
10. A method of fire monitoring and handling in a subway escalator pit as claimed in claim 9, wherein the method further comprises:
and receiving a first switch control signal through the escalator power switch, and cutting off the escalator power circuit (102), wherein the first switch control signal is output when the server (200) judges according to the received temperature data and judges that the temperature data accords with a third threshold range.
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Application publication date: 20210223 |