CN114495411A - Fire alarm system and fire alarm control method - Google Patents
Fire alarm system and fire alarm control method Download PDFInfo
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- CN114495411A CN114495411A CN202210076036.2A CN202210076036A CN114495411A CN 114495411 A CN114495411 A CN 114495411A CN 202210076036 A CN202210076036 A CN 202210076036A CN 114495411 A CN114495411 A CN 114495411A
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- 238000000034 method Methods 0.000 title claims abstract description 22
- 238000004891 communication Methods 0.000 claims description 22
- 230000006870 function Effects 0.000 claims description 8
- 230000008030 elimination Effects 0.000 claims description 5
- 238000003379 elimination reaction Methods 0.000 claims description 5
- 238000007726 management method Methods 0.000 claims description 4
- 238000013500 data storage Methods 0.000 claims description 3
- 238000011161 development Methods 0.000 abstract description 10
- 230000004044 response Effects 0.000 abstract description 7
- 238000013461 design Methods 0.000 abstract description 6
- 238000010276 construction Methods 0.000 abstract description 5
- 238000012360 testing method Methods 0.000 abstract description 5
- 230000005540 biological transmission Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 238000012545 processing Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 3
- 230000001960 triggered effect Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000012790 confirmation Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000007274 generation of a signal involved in cell-cell signaling Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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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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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B17/00—Fire alarms; Alarms responsive to explosion
- G08B17/06—Electric actuation of the alarm, e.g. using a thermally-operated switch
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B25/00—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems
- G08B25/01—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems characterised by the transmission medium
- G08B25/08—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems characterised by the transmission medium using communication transmission lines
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B7/00—Signalling systems according to more than one of groups G08B3/00 - G08B6/00; Personal calling systems according to more than one of groups G08B3/00 - G08B6/00
- G08B7/06—Signalling systems according to more than one of groups G08B3/00 - G08B6/00; Personal calling systems according to more than one of groups G08B3/00 - G08B6/00 using electric transmission, e.g. involving audible and visible signalling through the use of sound and light sources
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- Business, Economics & Management (AREA)
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- Fire Alarms (AREA)
Abstract
The invention provides a fire alarm system and a fire alarm control method. The system comprises: the cab display is respectively arranged on the carriages of the cab of the train and is compatible with the function of the fire alarm controller; set up a plurality of fire detector with the series connection mode connection in each carriage of train respectively, the cab display is connected respectively to head and tail both ends fire detector in the fire detector cluster of constitution, and fire detector is used for transmitting the fire alarm signal who detects to head and tail both ends fire detector, transmits the cab display by the fire detector at head and tail both ends. The invention can reduce the equipment cost, further reduce the design, development, construction and debugging cost of each equipment in the fire alarm system, and has short test and development period. And the fire alarm signal is directly transmitted to the cab display without passing through the fire alarm controller, so that the response delay of the fire alarm information is reduced.
Description
Technical Field
The invention relates to the technical field of vehicle safety control, in particular to a fire alarm system and a fire alarm control method.
Background
In order to ensure the safety of passengers, fire alarm systems are required to be equipped on the trains at present. A conventional Fire Alarm System (FAS) includes a Fire detector installed in each car and a Fire Alarm controller (FCU) installed in a cab car, and when a Fire occurs, the Fire detector detects a Fire signal and reports the Fire Alarm information to the Fire Alarm controller, and the Fire Alarm controller sends the Fire Alarm information to a Train Control and Management System (TCMS), and displays the Alarm information on a cab display to prompt a driver.
However, in the process of detecting a fire alarm signal by the fire detector and displaying the alarm information on the cab display, information transmission among a plurality of devices is required, so that the response time of the fire alarm information is long, the fire alarm system comprises a plurality of devices, the design, development, construction and debugging costs are high, and a plurality of devices have a plurality of test and development cycles.
Disclosure of Invention
The embodiment of the invention provides a fire alarm system and a fire alarm control method, which aim to solve the problems of long response time for processing fire alarm information and high design and debugging cost of the conventional fire alarm system.
In a first aspect, an embodiment of the present invention provides a fire alarm system, including:
the cab display is respectively arranged on the carriages of the cab of the train and is compatible with the function of the fire alarm controller;
the fire detectors are arranged in each carriage of the train and connected in series, the fire detectors at the head end and the tail end in the fire detector string are connected with corresponding cab displays respectively, the fire detectors are used for transmitting detected fire signals to the fire detectors at the head end and the tail end, and the fire detectors at the head end and the tail end transmit the fire signals to the cab displays.
In one possible implementation mode, a fire detector bus interface is arranged on the cab display; and the fire detector bus interface is connected with the corresponding head end or tail end fire detector.
In one possible implementation, the fire detector bus interface includes a power line interface and a communication line interface;
the power line interface is connected with a power line of the corresponding head end or tail end fire detector;
and the communication line interface is connected with an RS485 communication line of the corresponding head end or tail end fire detector and is used for receiving the fire alarm signal and sending a control signal.
In one possible implementation, at least one fire detector is arranged in each compartment; and adjacent fire detectors are connected through RS485 communication lines.
In one possible implementation, the number of fire detectors provided on the cab compartment is greater than the number of fire detectors provided on the other compartments except for the cab compartment.
In one possible implementation manner, a data storage is arranged on the cab display;
the data memory stores fault information and fire alarm information in a first-in first-out mode.
In one possible implementation manner, an alarm device is arranged on the cab display.
In a second aspect, an embodiment of the present invention provides a fire alarm control method, which uses the fire alarm system described in any one of the possible implementations of the first aspect, and the fire alarm control method includes:
when the fire detector detects a fire signal, the fire signal is sent to the fire detectors at the head and the tail ends, and the fire detectors at the head and the tail ends send the fire signal to a cab display;
and the cab display displays and gives an alarm according to the received fire alarm signal.
In one possible implementation manner, the cab display displays and alarms according to the received fire alarm signal, and the method includes:
the cab display receives the fire alarm signal, generates fire alarm information from the fire alarm signal for display, triggers an alarm device for alarm, and sends the fire alarm information to a train control and management system;
the cab display is also used for triggering the alarm equipment to be turned off when receiving the fire alarm turning-off signal.
In a possible implementation manner, the cab display is further configured to receive fault alarm information, trigger the alarm device to alarm, and trigger the alarm device to turn off after receiving the fault elimination information.
The embodiment of the invention provides a fire alarm system and a fire alarm control method, wherein the function of a fire alarm controller is integrated into a cab display, the head end and the tail end of fire alarms connected in series are respectively connected with the cab display, and the detected fire alarm information is transmitted to the cab display to be displayed, so that the fire alarm processing can be realized. And the fire alarm signal is directly transmitted to the cab display without passing through the fire alarm controller, so that the response delay of the fire alarm information is reduced.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed for the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
FIG. 1 is a schematic diagram of a fire alerting system provided by an embodiment of the present invention;
FIG. 2 is a schematic diagram of a fire alerting system according to another embodiment of the present invention;
FIG. 3 is a schematic diagram of the general structure of a fire alarm system provided by an embodiment of the invention;
fig. 4 is a flowchart of a fire alarm control method according to an embodiment of the present invention.
Detailed Description
In the following description, for purposes of explanation and not limitation, specific details are set forth, such as particular system structures, techniques, etc. in order to provide a thorough understanding of the embodiments of the invention. It will be apparent, however, to one skilled in the art that the present invention may be practiced in other embodiments that depart from these specific details. In other instances, detailed descriptions of well-known systems, devices, circuits, and methods are omitted so as not to obscure the description of the present invention with unnecessary detail.
In order to make the objects, technical solutions and advantages of the present invention more apparent, the following description is made by way of specific embodiments with reference to the accompanying drawings.
Fig. 1 is a schematic view of a fire alarm system according to an embodiment of the present invention, which may include a cab display 10 and a plurality of fire detectors 20, as described in detail below; the cab display 10 is different from a conventional cab display, and the cab display 10 in this embodiment integrates the function of a fire alarm controller, and can perform information interaction with a fire detector.
The driver cab display 10 is respectively arranged on the carriage of the driver cab of the train and is compatible with the function of the fire alarm controller;
the fire detectors 20 are arranged in each carriage of the train and connected in series, the fire detectors 201 at the head end and the tail end are connected with the corresponding cab display 10 respectively, the fire detectors 20 are used for transmitting detected fire signals to the fire detectors 201 at the head end and the tail end, and the fire detectors 201 at the head end and the tail end transmit the detected fire signals to the cab display 10.
It can be understood that when the fire detector 201 detects a fire signal, the fire signal can be directly transmitted to the corresponding cab display 10.
When the cab display 10 receives the fire alarm signal, the fire alarm information is generated according to the fire alarm signal to be displayed, the alarm device is triggered to alarm, and the fire alarm information is sent to the TCMS, so that the fire alarm processing can be carried out after the fire alarm controller is removed, the equipment cost is reduced, the design, development, construction and debugging cost of each equipment in the fire alarm system can be reduced, and the test and development period is short. And the fire alarm signal is directly transmitted to the cab display without passing through the fire alarm controller, so that the response delay of the fire alarm information is reduced, the transmission speed of the fire alarm information is improved, the fire alarm information can be known by a driver as soon as possible, the fire is processed as soon as possible, and the safety of trains and passengers is improved.
Referring to fig. 2, a fire detector bus interface 101 is arranged on the cab display 10; the fire detector bus interface 101 corresponds to a head-end or tail-end fire detector 201.
The fire detector bus interface 101 comprises a power line interface 1011 and a communication line interface 1012;
the power line interface 1011 is connected to the power line of the corresponding head end or tail end fire detector 201 to supply power to the fire detector.
The communication line interface 1012 is connected to the RS485 communication line of the corresponding head end or tail end fire detector 201, and is used for receiving the fire alarm signal and sending the control signal.
The RS485 communication line (i.e., the RS485 bus) is a standard that defines the electrical characteristics of a driver and a receiver in a balanced digital multipoint system. The RS485 communication line adopts a half-duplex working mode and supports multipoint data communication. The RS485 communication line network topology generally adopts a bus type structure with matched terminals, that is, a bus is adopted to connect all the nodes in series.
In one embodiment, at least one fire detector is disposed within each car. Here, the fire Detector may be a Smoke-Heat Detector (SHD) for detecting a fire alarm signal.
The adjacent fire detectors are connected through RS485 communication lines, see figure 2, the fire detectors in all the carriages are connected in series to form a fire detector string, the fire detectors in the string head positions, namely the fire detectors at the head end and the tail end, are respectively connected with corresponding cab displays, so that when any fire detector detects a fire signal, the fire signal can be transmitted to the cab displays through the fire detectors at the head end and the tail end through the serially connected fire detector structures, and the position information of a fire disaster is transmitted to the TCMS system through the MVB bus by the cab displays. The SHD, cab display and TCMS thus form a ring network, wherein the TCMS includes the repeater 30 and the vehicle control unit 40.
The quantity of the fire detectors arranged on each carriage can be set according to actual requirements, generally, each carriage is at least provided with two fire detectors, one fire detector is arranged at the head of the carriage, and the other fire detector is arranged at the tail of the carriage, so that the whole carriage can be monitored.
In one embodiment, a greater number of fire detectors are provided on the cab compartment than on the compartments other than the cab compartment. The general train is provided with two cabs which are arranged at two ends of the train, the cabs have more running devices, generate larger heat and cause higher risk of fire, so that the number of fire detectors arranged in the cabs is larger, and the fire hazard is reduced.
A nonvolatile data memory 102 is arranged on the cab display 10; the data storage 102 stores the fault information and the fire alarm information in a first-in first-out manner.
It should be noted that the cab display 10 is also used for receiving fault information. The failure information includes at least a car number, a fire detector number, a failure type, and an occurrence time. The fire information includes at least a car number, a fire detector number, a fire type, and a time of occurrence.
The information record amount stored in the data memory 102 may be set to a certain range, when the stored information record amount is greater than the preset information record amount, the information record needs to be deleted to store a new information record, and the first-in first-out storage mode set in the data memory 102 means that the information record stored first is deleted first.
Referring to fig. 3, an alarm device 103 is provided on the cab display 10. The alarm device 103 is configured to alarm according to the fault information or the fire alarm information, and the alarm device 103 may be an audible and visual alarm device, where a recoverable manner is adopted during fault alarm, that is, when the fault at the fault point is recovered to normal, the fault alarm is automatically cancelled. The fire alarm adopts an 'unrecoverable' mode, namely, sound and light alarm is started immediately after fire alarm information is received until man-made 'noise elimination' or 'reset' is pressed on a touch screen, a fire alarm signal is generated and closed, and when a cab display receives the fire alarm signal, the alarm equipment is triggered to close.
It should be noted that the following functions can be implemented by the cab display touch screen:
(1) observing the running state of the on-line fire detector;
(2) inquiring the historical record of fire alarm information or fault information;
(3) the parameters for configuring the fire detector comprise the following contents: smoke detection sensitivity, temperature alarm threshold, failure or fire alarm confirmation time, etc.;
(4) the fire detector has a shielding function, and when a certain detector has multiple fire alarm errors, the false alarm detector can be manually isolated;
(5) controlling the alarm equipment to perform noise elimination and resetting;
(6) real time clock settings, etc.
When normally monitoring, the cab display touches the display screen:
(1) the fire alarm information of the fire detector is displayed, and the display content comprises: car number, fire detector number, fire type and time of occurrence.
(2) The fault alarm information of the fire detector is displayed, and the display content comprises: car number, fire detector number, fault type and time of occurrence.
(3) If some part has fault alarm and another part has fire alarm signal, the fault indicator light is kept, and the fire alarm part is displayed, and the fire alarm sound replaces the fault sound, i.e. the fire alarm is prior.
Referring to the schematic diagram of the overall structure of the fire alarm system shown in fig. 3, the fire alarm system includes two cab displays and a plurality of SHDs, the two cab displays are respectively disposed in the cabs, power connection interfaces for supplying power to the cab displays are disposed on the cab displays, and the power connection interfaces provide ± 110V voltages, and an MVB bus interface is further disposed for forwarding fire alarm information and fault alarm information to the TCMS. The port of the cab display, which is used for being connected with the fire detectors at the head end and the tail end, comprises a power line interface and a communication line interface, wherein the power line interface is used for being connected with a power line of the SHD to provide +/-24V voltage for the SHD, and the communication line interface is used for being connected with a communication line of the SHD to realize communication connection between the power line interface and the communication line interface. The driver cab display is also provided with a shielding interface and a reset interface, wherein the shielding interface is connected with a double-twisted shielding wire of the SHD and used for shielding a certain fire detector after false alarm happens for many times, and the reset interface is used for manually resetting after fire treatment is completed.
Above-mentioned fire alarm system, the head and the tail both ends through series connection's fire alarm ware are connected with the driver's cabin display respectively, and the fire alarm information that will detect transmits and shows for the driver's cabin display to can realize removing and can also carry out fire alarm and handle after the fire alarm control ware, reduce equipment cost, thereby can reduce design, development, construction, the debugging cost of each equipment in the fire alarm system, test development cycle is short. And the fire alarm signal is directly transmitted to the cab display without passing through the fire alarm controller, so that the response delay of the fire alarm information is reduced, the transmission speed of the fire alarm information is improved, the fire alarm information can be known by a driver as soon as possible, the fire is processed as soon as possible, and the safety of trains and passengers is improved.
Referring to fig. 4, an embodiment of the present invention further provides a fire alarm control method, where with the fire alarm system provided in any of the embodiments, the fire alarm control method includes:
It should be noted that, when fire detectors at the head and the tail end detect a fire signal, the fire signal is directly sent to a cab display. In addition, the fire detector can also detect a fault signal and send the fault signal to the cab display through the fire detectors at the head end and the tail end or directly send the fault signal to the cab display.
Optionally, the fire detectors at the head end and the tail end transmit fault signals or fire alarm signals to the cab display through the RS485 communication line interface.
And step 402, displaying and alarming by the cab display according to the received fire alarm signal.
The cab display receives the fire alarm signal, generates fire alarm information from the fire alarm signal for display, triggers the alarm equipment for alarming, and sends the fire alarm information to the train control and management system; the fire alarm information can comprise a carriage number, a fire detector number, a fire alarm type and accident occurrence time.
When the driver's cab display received is the fault signal, show fault signal generation trouble alarm information to trigger alarm equipment and report to the police, and send trouble alarm information to the TCMS network, wherein, trouble alarm information includes: car number, fire detector number, fault type and time of occurrence.
And the cab display is also provided with alarm equipment, and sound and light warning is carried out through the alarm equipment. And after the cab display receives the fault alarm information or the fire alarm information, triggering the alarm equipment to perform sound-light alarm. Wherein: the failure alarm adopts a 'restorable' mode, namely when the failure of the failure point is recovered to be normal, the cab display receives failure elimination information, the alarm equipment is triggered to be closed, and the failure alarm sound is automatically eliminated.
The fire alarm adopts an unrecoverable mode, namely, sound and light alarm is started immediately after the fire alarm information is received until the touch screen is manually silenced or reset, namely, the cab display is also used for triggering the alarm equipment to be closed when a fire alarm signal is received.
According to the fire alarm control method, when the fire detector detects a fire alarm signal, the fire alarm signal is sent to the fire detectors at the head end and the tail end, and the fire detectors at the head end and the tail end send the fire alarm signal to the cab display; the driver cab display displays and alarms according to the received fire alarm signal, so that the fire alarm processing can be carried out after the fire alarm controller is removed, the equipment cost is reduced, the design, development, construction and debugging cost of each equipment in the fire alarm system can be reduced, and the test development period is short. And the fire alarm signal is directly transmitted to the cab display without passing through the fire alarm controller, so that the response delay of the fire alarm information is reduced, the transmission speed of the fire alarm information is improved, the fire alarm information can be known by a driver as soon as possible, the fire is processed as soon as possible, and the safety of trains and passengers is improved.
It should be understood that, the sequence numbers of the steps in the foregoing embodiments do not imply an execution sequence, and the execution sequence of each process should be determined by its function and inherent logic, and should not constitute any limitation to the implementation process of the embodiments of the present invention.
The embodiment of the invention also provides a vehicle which comprises the fire alarm system provided by any one of the embodiments and has the beneficial effects of the fire alarm system provided by any one of the embodiments.
The above-mentioned embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the spirit and scope of the embodiments of the present invention, and are intended to be included within the scope of the present invention.
Claims (10)
1. A fire alerting system, comprising:
the cab display is respectively arranged on the carriages of the cab of the train and is compatible with the function of the fire alarm controller;
the fire detectors are arranged in each carriage of the train and connected in series, the fire detectors at the head end and the tail end in the fire detector string are connected with corresponding cab displays respectively, the fire detectors are used for transmitting detected fire signals to the fire detectors at the head end and the tail end, and the fire detectors at the head end and the tail end transmit the fire signals to the cab displays.
2. The fire alerting system of claim 1, wherein a fire detector bus interface is provided on the cab display; and the fire detector bus interface is connected with the corresponding head end or tail end fire detector.
3. The fire alerting system of claim 2, wherein the fire detector bus interface comprises a power line interface and a communication line interface;
the power line interface is connected with a power line of the corresponding head end or tail end fire detector;
and the communication line interface is connected with an RS485 communication line of the corresponding head end or tail end fire detector and is used for receiving the fire alarm signal and sending a control signal.
4. A fire alerting system as claimed in claim 1, wherein at least one fire detector is provided in each compartment; and adjacent fire detectors are connected through RS485 communication lines.
5. The fire alerting system of claim 1, wherein the number of fire detectors provided on the cab compartment is greater than the number of fire detectors provided on the compartments other than the cab compartment.
6. A fire alerting system as claimed in any one of claims 1 to 3, wherein a data storage is provided on the cab display;
the data memory stores fault information and fire alarm information in a first-in first-out mode.
7. A fire alerting system as claimed in any one of claims 1 to 3, wherein an alerting device is provided on the cab display.
8. A fire alarm control method using the fire alarm system according to any one of claims 1 to 7, the fire alarm control method comprising:
when the fire detector detects a fire signal, the fire signal is sent to the fire detectors at the head and the tail ends, and the fire detectors at the head and the tail ends send the fire signal to a cab display;
and the cab display displays and gives an alarm according to the received fire alarm signal.
9. A fire alarm control method according to claim 8, wherein the cab display performs display and alarm according to the received fire alarm signal, including:
the cab display receives the fire alarm signal, generates fire alarm information from the fire alarm signal for display, triggers an alarm device for alarm, and sends the fire alarm information to a train control and management system;
the cab display is also used for triggering the alarm equipment to be turned off when receiving the fire alarm turning-off signal.
10. A fire alarm control method according to claim 9,
and the cab display is also used for receiving the fault alarm information, triggering the alarm equipment to alarm, receiving the fault elimination information and triggering the alarm equipment to be closed.
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| CN202210076036.2A CN114495411A (en) | 2022-01-23 | 2022-01-23 | Fire alarm system and fire alarm control method |
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| CN110947120A (en) * | 2019-10-21 | 2020-04-03 | 中车大连机车研究所有限公司 | Locomotive fire prevention and control system |
| CN111815890A (en) * | 2020-07-01 | 2020-10-23 | 中车永济电机有限公司 | Electric transmission rail car with fire alarm monitoring system |
| CN112002096A (en) * | 2020-09-02 | 2020-11-27 | 吉林省祥润实业有限公司 | Vehicle-mounted fire alarm controller for rail transit |
| CN113715854A (en) * | 2021-09-02 | 2021-11-30 | 中车唐山机车车辆有限公司 | Method, device, storage medium, and program product for controlling train driver station |
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Application publication date: 20220513 |