CN110509933B - Platform door redundancy protection system and method for subway station - Google Patents
Platform door redundancy protection system and method for subway station Download PDFInfo
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- CN110509933B CN110509933B CN201910823751.6A CN201910823751A CN110509933B CN 110509933 B CN110509933 B CN 110509933B CN 201910823751 A CN201910823751 A CN 201910823751A CN 110509933 B CN110509933 B CN 110509933B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61B—RAILWAY SYSTEMS; EQUIPMENT THEREFOR NOT OTHERWISE PROVIDED FOR
- B61B1/00—General arrangement of stations, platforms, or sidings; Railway networks; Rail vehicle marshalling systems
- B61B1/02—General arrangement of stations and platforms including protection devices for the passengers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
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- B61K13/00—Other auxiliaries or accessories for railways
- B61K13/04—Passenger-warning devices attached to vehicles; Safety devices for preventing accidents to passengers when entering or leaving vehicles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
- B61L23/00—Control, warning or like safety means along the route or between vehicles or trains
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
- B61L23/00—Control, warning or like safety means along the route or between vehicles or trains
- B61L23/04—Control, warning or like safety means along the route or between vehicles or trains for monitoring the mechanical state of the route
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Abstract
The invention relates to a redundant protection system and method for platform doors of a subway station, and belongs to the technical field of urban rail transit. The platform door redundancy protection system comprises an anti-pinch system, a human injury prevention system, a communication module and a control module. The anti-pinch system comprises an anti-pinch stop lever and a detection module. The anti-injury system comprises a laser sheet light source detection module, an image recognition system, an infrared irradiation array and a voice prompt system. The laser sheet light source detection module comprises a generator and a receiving belt, wherein the receiving belt is arranged on the platform ground close to the platform door; the infrared irradiation array irradiates the border-crossing passenger according to the position information of the border-crossing passenger; the voice prompt system prompts the boundary-crossing passenger to return to the safe area. The invention ensures the high reliability of the system through multiple protection, effectively avoids safety accidents caused by passengers being clamped or the passengers squeezing the platform door, and greatly improves the safety of subway operation.
Description
Technical Field
The invention relates to a redundant protection system and method for platform doors of a subway station, and belongs to the technical field of urban rail transit.
Background
In order to ensure the safe operation of urban rail transit, more and more urban rail transit lines are provided with platform doors. The platform door system is installed in subway platform and leans on the track side border, separates platform district and rail way district each other, and the main objective prevents that the passenger from falling to the rail way district and produces the accident, reduces train operation noise and piston wind simultaneously to station equipment facility and passenger's influence, provides a safe, comfortable environment of waiting for the passenger, improves the service level of subway.
In order to ensure the normal operation of a train, a gap with the thickness of 150-340 mm exists between a platform door and a train door at present, the average chest thicknesses of adult men and women in China are 215mm and 200mm respectively, passengers are extremely easy to clamp between the platform door and the train in the process of getting on and off the train, and once the train is started, the clamped passengers face life risks. The existing platform door anti-pinch measures mainly comprise an anti-pinch baffle, an infrared anti-pinch door, a laser platform door, a soft lamp tube and the like, and whether a passenger is pinched by the platform door or pinched between the platform door and a vehicle door is detected. The anti-pinch baffle is arranged at the lower part of the platform door (close to one side of the train), so that passengers can easily walk around the anti-pinch baffle, and the probability of pinching the passengers is still high. The infrared anti-pinch door and the laser platform door are greatly influenced by environmental factors, the false alarm rate is high, and the stability is not strong. The soft lamp tube has the characteristics of economy and practicality, but needs manual assistance, has low reliability, and is not suitable for arc station platforms. Meanwhile, because the platform door and the train door are difficult to close synchronously, the closing sequence is uncertain, the time difference between the front and the back can reach about 1s at most, and passengers are extruded out of the carriage and clamped between the platform door and the train door under the condition that the platform door is closed but the train door is not closed; when the platform door is not closed and the train door is closed, a passenger at the rear may be jammed between the platform door and the train door. Therefore, a safe and reliable redundant anti-human-jamming device suitable for various types of stations is urgently needed.
In addition, during rush hours, when a train enters or is about to leave a station, passengers are too close to the platform door due to urgent getting on, and in addition, the platform door is too crowded, so that the passengers are easily injured during the opening or closing process of the platform door. At present, passengers are manually reminded not to be close to a platform door, and an effective intelligent detection device is not provided. Therefore, a stable and efficient redundant anti-injury device suitable for various types of platforms is urgently needed.
Disclosure of Invention
To solve the above problems, an object of the present invention is to provide a redundant protection system and method for platform doors of a subway station.
A redundant protection system for platform doors of a subway station comprises an anti-pinch system, an anti-injury system, a communication module and a control module; wherein:
the anti-pinch system comprises an anti-pinch stop lever, a detection module and an audible and visual alarm;
the anti-pinch stop lever is arranged on the side, close to a subway train, of the platform door and comprises a plurality of transverse rods and a vertical shaft, the vertical shaft is vertically connected with the platform door, and the transverse rods are horizontally fixed on the vertical shaft; when meeting the resistance of passengers or foreign matters in the process that the adjacent anti-clamping stop levers on the platform door are relatively folded and close along with the closing of the platform door, the platform door is reopened; the vertical shaft is connected with the platform door by adopting a one-way bearing, and the cross rod can rotate 90 degrees towards the central line direction of the platform door through the vertical shaft and is an automatic folding rod;
the detection module is fixed above the platform door and used for detecting passengers or articles in an area between the platform door and the train door after the platform door and the train door are closed, and transmitting acquired detection data to the control module in real time through the communication module;
the audible and visual alarm is arranged at each platform door and connected with the control module, and when the detection module detects that people or objects exist in the area between the platform door and the train door after the platform door and the train door are closed, the audible and visual alarm gives an alarm;
the anti-injury system comprises a laser sheet light source detection module, an image recognition system, an infrared irradiation array and a voice prompt system;
the laser sheet light source detection module comprises a sheet light source generator and a sheet light source receiving belt, wherein the sheet light source generator is arranged above the platform door in an inclined manner, and the sheet light source receiving belt is arranged on the platform ground close to the platform door; when the passenger crosses the sheet light source receiving belt, the sheet light source is shielded, so that the received light is reduced, and a current reduction signal is output to a control system;
the image recognition system is arranged above the platform, and when receiving a signal sent by the control system that the output current of the film light source receiving belt is reduced, the image recognition system performs image recognition (namely secondary detection) on passengers at the position of the film light source receiving belt and judges whether the passengers cross the boundary into a dangerous area;
the infrared irradiation array is arranged above the platform, and irradiates the boundary-crossing passengers through the boundary-crossing passenger position information returned by the image recognition system;
the voice prompt system is arranged at each platform door and prompts the boundary-crossing passengers to return to the safe area;
the communication module is used for realizing communication connection between the control module and the anti-pinch system, the anti-injury system and the platform door control system;
the control module is used for controlling actions of the anti-pinch system and the anti-injury system.
Furthermore, a detection module is responsible for detecting a corresponding group of platform doors, and the detection area covers a rectangular area which is defined by the opening width of the platform doors as a long side and the distance between the platform doors and the train doors as a short side.
Furthermore, a first laser power supply module, a laser and a linear laser glass sheet are sequentially arranged in the sheet light source generator, the first laser power supply module converts 220V voltage into voltage required by the laser, and light emitted by the laser passes through the linear laser glass sheet to form a sheet light source of a linear grating;
a plurality of light source receiving amplifiers are arranged on the sheet light source receiving belt and amplify received light source information to an outputtable current signal; each light source receiving amplifier is an address signal, and when the passenger crosses the light source receiving amplifier of the address, the corresponding light source receiving amplifier simultaneously outputs the address signal to the image recognition system.
Furthermore, a second laser power supply module for supplying power to the plurality of infrared emitters is arranged in the infrared irradiation array, laser lens glass sheets are respectively arranged on the outer sides of the plurality of infrared emitters, and point light sources of the corresponding infrared emitters are focused and amplified by the laser lens glass sheets.
A redundant protection method for platform doors of a subway station comprises the following steps:
step 1, receiving signals by a platform door and a train door to start closing, and detecting whether the platform door is subjected to closing resistance in the closing process: if the platform door is subjected to closing resistance, the platform door motor rotates reversely, and the platform door is opened; if the platform door and the train door are not subjected to the closing resistance, the platform door and the train door are closed and the next step is carried out;
and 3, judging the shapes of the people and the objects by the control module according to the returned data: if the judgment results of all platform doors are 'no clamped passenger or article', the control module sends a 'normal' signal to the platform door control system through the communication module, the platform door control system sends a signal with a normal platform door state to the subway signal system, and after the subway signal system confirms that other related signals are normal, a train is started by sending a signal allowing departure to the train; if the door of any platform is judged to have the clamped passenger or article, the next step is carried out;
step 4, the control module sends an 'abnormal' signal to the platform door control system through the communication module, and meanwhile, the acousto-optic alarm gives an alarm; the platform door control system receives the abnormal signal and then controls the platform door to open so that the clamped passengers or articles are separated from danger;
step 8, if passengers cross the boundary into the dangerous area, the infrared irradiation array irradiates the boundary-crossing passengers according to the boundary-crossing passenger position information; meanwhile, the voice prompt system prompts the boundary-crossing passenger to return to the safe area.
The invention has the beneficial effects that: the invention provides a redundant protection system and a redundant protection method for a platform door of a subway station, which can automatically confirm whether a clamped passenger exists before a subway signal system sends a 'driving permission' signal to a train, and uses a 'normal' signal sent to the subway signal system by the system as one of necessary conditions for the subway signal system to send the 'driving permission' signal to the train. If the clamped passenger exists, the passenger can be quickly found and rescued. In addition, through the arrangement of the laser film light source detection device, the image recognition system and the infrared irradiation array, in the process of closing the door of the platform door or closing the door of the platform door, whether passengers crossing the film light source receiving belt exist can be judged, if the passengers cross the border, the passengers can be prompted to move back to a safe area through the irradiation of the infrared lamp, the condition that the passengers rob a subway train in the process of closing the door of the platform door or closing the door of the platform door is avoided, the accident that the platform door hurts people is avoided, compared with the existing anti-pinch measures, the subway safety monitoring system has the advantages of being high in efficiency, stability, accuracy, applicable to various types of platforms and the like, and the subway operation safety.
Drawings
FIG. 1 is a schematic structural view of an anti-pinch system of a platform door of a subway station according to the present invention;
FIG. 2 is an enlarged view of a portion of the structure at A in FIG. 1 according to the present invention;
FIG. 3 is a schematic structural view of the arrangement of the platform door anti-injury system of the subway station platform in the platform;
FIG. 4 is a schematic diagram of a sheet light source receiving band structure according to the present invention;
FIG. 5 is a schematic diagram of a sheet light source generator according to the present invention;
FIG. 6 is a schematic view of an infrared illumination array configuration according to the present invention;
fig. 7 is a schematic flow chart of the subway station platform door redundancy protection method according to the present invention;
FIG. 8 is a frame diagram of the subway station platform door redundancy protection system of the present invention;
the system comprises a 1-anti-pinch stop lever, a 2-acousto-optic alarm, a 3-detection module, a 4-platform, a 5-train, a 6-platform door, a 7-piece light source generator, a 71-first laser power supply module, a 72-laser, a 73-I-shaped laser glass sheet, an 8-piece light source receiving belt, a 9-camera, a 10-infrared irradiation array, a 101-second laser power supply module, a 102-infrared emitter, a 103-laser lens glass sheet, an 11-light source receiving amplifier, a 12-voice prompt system, a 13-monitoring room, a 14-main control system, a 15-dangerous area and a 16-safe area.
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.
Example 1
A redundant protection system for platform doors of a subway station comprises an anti-pinch system, an anti-injury system, a communication module and a control module; wherein:
as shown in figure 1, the anti-pinch system comprises an anti-pinch stop lever 1, a detection module 3 and an audible and visual alarm 2. Prevent pressing from both sides pin 1 and set up and be close to subway train 5 side at platform door 6, belong to mechanical anti-pinch part for whether the mechanical type judges that whether has the passenger to exist between platform door 6 and train 5 door, and can regard as the emergency switch before 6 locks of platform door, stranded passenger prevents that platform door 6 from closing through pulling to prevent pressing from both sides pin 1. Prevent pressing from both sides pin 1 and contain a plurality of horizontal pole and a vertical axis, the equal level of a plurality of horizontal pole is fixed on the vertical axis to the setting is in the space region between platform door and train door, and vertical the installing on platform door 6 of vertical axis. In this embodiment, the anti-pinch bar includes 4 horizontal rods and 1 vertical axis, the horizontal rod length sets up to 12-18cm according to the clearance width between platform door 6 and subway train door 5, is fixed in the vertical axis according to the vertical equidistance that adjacent interval is 30cm-35cm, only shows 4 horizontal rods in fig. 1.
The invention utilizes the existing mechanism of reopening when the platform door is blocked, and the anti-clamping stop rod 1 is arranged on the side, close to the tunnel, of the platform door 6. In the process that the adjacent anti-pinch stop levers 1 are relatively folded and close along with the closing of the platform doors 6, if a passenger between the platform doors 6 and the train doors is touched, resistance is transmitted to the platform doors 6, the group of platform doors 6 is triggered to be subjected to a pinch reopening mechanism, and the pinched passenger can safely exit from the area between the platform doors 6 and the train doors. In addition, the vertical shaft adopts one-way bearing to be connected with platform door 6, the horizontal pole can rotate 90 degrees to the central line direction of platform door through the vertical shaft, and the horizontal pole is automatic folding rod, if the passenger of being pressed from both sides is just around preventing pressing from both sides of the catch bar, before platform door 6 is not locked, the passenger of being located in preventing pressing from both sides of the catch bar still can exert a resistance or push away the anti-pinch bar of place side to the central line direction of platform door by catching preventing pressing from both sides of the catch bar, impel platform door 6 to open again, the horizontal pole is automatic folding simultaneously, thereby the passenger of being pressed from both sides leaves danger area 15, prevent pressing from both sides the catch bar and is 1.0-1.2m apart from the biggest vertical height of platform, be convenient for the passenger of being pressed from catching promptly.
The detection module 3 is fixed above the platform door 6, as shown in fig. 2, and is used for detecting passengers or articles in an area between the platform door 6 and a train door after the platform door 6 and the train door are closed, and transmitting acquired detection data to the control module in real time through the communication module; one detection module 3 is responsible for detecting a corresponding group of platform doors 6, and the detection area of the detection module covers a rectangular area which is formed by using the opening width of the platform doors 6 as a long side and the distance between the platform doors 6 and train doors as a short side.
The control module is used for analyzing and processing the data sent back by the detection module 3, judging whether passengers are clamped in the area between each platform door 6 and the vehicle door, and sending a corresponding instruction signal to the platform door control system according to the judgment result. The control module is provided with a danger threshold range which is used as a judgment basis when data are analyzed and processed.
The communication module is used for realizing the communication connection between the control module and the detection module, between the platform door control system and between the control module and each related signal system of the subway.
Install audible-visual annunciator 2 respectively at every platform door 6 punishment, as shown in fig. 2, audible-visual annunciator 2 is connected with control module, and after detecting module 3 and detecting that 6 and train door are locked at the platform, the regional someone between platform door and the train door, audible-visual annunciator sent out the police dispatch newspaper.
As shown in fig. 3, the system for preventing the injured person comprises a laser sheet light source detection module, an image recognition system, an infrared irradiation array and a voice prompt system. The laser sheet light source detection module comprises a sheet light source generator 7 and a sheet light source receiving tape 8. The light source generator 7 is installed above the platform door 6, and the height from the platform 4 to the ground can be 2-3m, in this embodiment, 2.5m is selected. The film light source receiving belt 8 is installed on the platform ground close to the platform door 6, specifically, the film light source receiving belt 8 is arranged in front of each platform door 6, the distance between the film light source receiving belt 8 and the platform door 6 is 0-5cm, and the width of the film light source receiving belt 8 is 5-20 cm. When the passenger passes over the sheet light source receiving tape 8, the sheet light source is blocked, the sheet light source receiving tape 8 receives a decrease in light, and the output current signal (4-20MA) decreases.
As shown in fig. 5, a first laser power module 71, a laser 72 and a linear laser glass 73 are sequentially disposed in the sheet light source generator 7, the first laser power module 71 converts a 220V voltage into a voltage required by the laser 72, in this embodiment, the first laser power module 71 is a 905nm laser power module, and the laser 72 is a 905nm laser. The 905nm laser emits 905nm light, which passes through a linear laser glass plate 73 to form a linear grating sheet light source.
As shown in fig. 3 and 4, the sheet light source receiving tape 8 is provided with a plurality of light source receiving amplifiers 11, and the light source receiving amplifiers 11 amplify the received light source information to an outputable current signal; when a passenger is positioned in the sheet light source receiving belt 8, the sheet light source receiving belt 8 receives a low light source signal and outputs a low-power current signal. Each light source receiving amplifier 11 is an address signal, and when the passenger crosses the light source receiving amplifier 11 of the address, the corresponding light source receiving amplifier 11 simultaneously outputs the address signal to the image recognition system.
The image recognition system comprises a plurality of cameras 9 which are respectively arranged above the platform, and when the image recognition system receives a signal that the output current signal of the film light source receiving belt 8 is reduced, the cameras 9 are started to recognize the image of the passenger at the position 8 of the film light source receiving belt and judge whether the out-of-range passenger exists.
The infrared irradiation array 10 is installed above the platform, the height from the platform ground is 2-3M, in the embodiment, the infrared irradiation array 10 is installed at the position with the height from the platform ground being 2.5M, the included angle between the infrared irradiation array and the horizontal plane is 10-25 degrees, 600nm red light is emitted and visible, and the diameter of a light spot is 1.5M. In the boundary crossing passenger position information returned by the image recognition system, the infrared irradiation array 10 emits 1.5 meters of light spots to irradiate the corresponding boundary crossing passenger, and the boundary crossing passenger is prompted to exit to the safe area 16.
As shown in fig. 6, a second laser power module 101 for providing power to a plurality of infrared emitters 102 is arranged in the infrared irradiation array 10, the second laser power module 101 is a 600nm laser power module, the infrared emitters 102 are 600nm infrared emitters, laser lens glass sheets 103 are respectively arranged at outer sides of the plurality of infrared emitters 102, and the laser lens glass sheets 103 respectively focus and amplify point light sources of the corresponding infrared emitters 102 to light spots of 1.5 m.
A voice prompt system 12 is installed at each platform door 6 to prompt the out-of-range passengers to return to the safe area 16.
Example 2
A redundant protection method for platform doors of a subway station comprises the following steps:
step 1, receiving signals by a platform door and a train door to start closing, and detecting whether the platform door is subjected to closing resistance in the closing process: if the platform door is subjected to closing resistance, the platform door motor rotates reversely, and the platform door is opened; if the platform door and the train door are not subjected to the closing resistance, the platform door and the train door are closed and the next step is carried out;
and 3, judging the shapes of the people and the objects by the control module according to the returned data: if the judgment results of all platform doors are 'no clamped passenger or article', the control module sends a 'normal' signal to the platform door control system through the communication module, the platform door control system sends a signal with a normal platform door state to the subway signal system, and after the subway signal system confirms that other related signals are normal, a train is started by sending a signal allowing departure to the train; if the door of any platform is judged to have the clamped passenger or article, the next step is carried out;
step 4, the control module sends an 'abnormal' signal to the platform door control system through the communication module, and meanwhile, the acousto-optic alarm gives an alarm; the platform door control system receives the abnormal signal and then controls the platform door to open so that the clamped passengers or articles are separated from danger;
step 8, if a passenger crosses the boundary into the dangerous area 15, the infrared irradiation array irradiates the boundary-crossing passenger according to the boundary-crossing passenger position information; at the same time, the voice prompt system prompts the out-of-range passenger to return to the safe area 16.
If in the operation of a certain subway, if the accident condition appears, the passenger who does not get on the train in time is clamped between the platform door and the train door, and the passenger is positioned at two sides of the anti-clamping stop lever and does not apply resistance to the anti-clamping stop lever, the platform door and the train door are locked at the moment and send signals to the platform door control system, and the train waits for the signals which are allowed to leave the train. The control module controls the passenger detection module to start after receiving signals sent by the platform door control system that both the platform door and the vehicle door are locked, the detection modules rapidly detect respective detection areas and transmit detection results to the control module, the control module analyzes and judges that a passenger is clamped in an area between one platform door and a station according to a preset normal parameter range, the control module sends a signal indicating 'abnormity' to the platform door control system according to the judgment result, marks the position on a manual control interface, and sends the signal to an audible and visual alarm at the position to trigger an alarm lamp to flicker. The platform door control system receives the signal and then gives a door opening signal to the platform door control unit again, the platform door is opened again, and passengers trapped at two sides of the anti-pinch stop lever can push the anti-pinch stop lever at the side of the platform door in the direction of the central line of the platform door, so that the platform door is separated from danger through the anti-pinch stop lever. After a certain time interval, the platform door is locked and is carried out again two detection processes of mechanical anti-pinch and intelligent anti-pinch of the anti-pinch system of the platform door of the subway station are carried out. The control module analyzes the judgment result to be 'no person is clamped', and the control module sends a signal indicating 'normal' to the signal system according to the judgment result. And after the signal system confirms that the signals of a subway travelling line and the like are normal, a signal lamp in front of the train lights a green lamp to send a signal of 'permission to leave the train' to the train, and the train starts operation.
In summary, the present invention includes two anti-pinch determination methods, namely mechanical anti-pinch and intelligent anti-pinch. The anti-pinch stop lever is arranged on the side, close to a subway train, of the platform door and serves as a first mechanical anti-pinch measure in the system, and when the platform door is closed, if the anti-pinch stop lever is subjected to resistance caused by foreign matters, the motor of the platform door is triggered to rotate reversely, and the platform door is opened again; if the existing passenger is located at the outer side of the anti-pinch stop lever, the anti-pinch stop lever can be gripped by hands to cause resistance when the platform door is closed, so that the platform door is opened again. The second intelligent anti-human-pinch measure in the system comprises a passenger detection module, a control module and a display module, wherein after a platform door and a vehicle door are locked, the passenger detection module collects parameter data such as character shape characteristics of a gap area between the platform door and the vehicle door of the subway station and sends the acquired data to the control module in real time; the control module is used for controlling the passenger detection module and carrying out human shape recognition processing on the data acquired by the passenger detection module, judging whether passengers are clamped between each platform door and the vehicle door, if the judgment result is that the clamped passengers exist, sending an abnormal signal to the platform door control system, and after receiving the abnormal signal, the platform door control system controls the platform door to be opened so that the clamped passengers are separated from danger; if the situation that no passenger is clamped is judged, a normal signal is sent to the platform door control system, and the platform door and the vehicle door are kept locked. And the platform door control system feeds back the state information of the platform door to the subway signal system, and the subway signal system sends the information of allowing the train to leave the station after confirming other information. In addition, the intelligent dual-anti-injury system can judge whether passengers crossing a sheet light source receiving belt exist or not in the process of preparing the platform door to be closed or closing the platform door through the arrangement of the laser sheet light source detection device, the image recognition system and the infrared irradiation array, if the passengers cross the boundary, the passengers can be prompted to move back to a safe area through the irradiation of the infrared lamp, the condition that the passengers rush to get on a subway train in the process of preparing the platform door to be closed or closing the platform door is avoided, and therefore the accident that the platform door injures people is avoided.
The system and the method can provide double protection through a mechanical method and an intelligent method, have the characteristics of high efficiency, stability, accuracy, applicability to various types of platforms and the like compared with the existing anti-pinch measures, effectively avoid safety accidents caused by the fact that passengers are pinched between platform doors and vehicle doors of the subway station, and greatly guarantee the safety of subway operation.
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 (5)
1. A redundant protection system of a platform door of a subway station is characterized by comprising an anti-pinch system, an anti-injury system, a communication module and a control module; wherein:
the anti-pinch system comprises an anti-pinch stop lever, a detection module and an audible and visual alarm;
the anti-pinch stop lever is arranged on the side, close to a subway train, of the platform door and comprises a plurality of transverse rods and a vertical shaft, the vertical shaft is vertically connected with the platform door, and the transverse rods are horizontally fixed on the vertical shaft; when meeting the resistance of passengers or foreign matters in the process that the adjacent anti-clamping stop levers on the platform door are relatively folded and close along with the closing of the platform door, the platform door is reopened; the vertical shaft is connected with the platform door by adopting a one-way bearing, and the cross rod can rotate 90 degrees towards the central line direction of the platform door through the vertical shaft and is an automatic folding rod;
the detection module is fixed above the platform door and used for detecting passengers or articles in an area between the platform door and the train door after the platform door and the train door are closed, and transmitting acquired detection data to the control module in real time through the communication module;
the audible and visual alarm is arranged at each platform door and connected with the control module, and when the detection module detects that people or objects exist in the area between the platform door and the train door after the platform door and the train door are closed, the audible and visual alarm gives an alarm;
the anti-injury system comprises a laser sheet light source detection module, an image recognition system, an infrared irradiation array and a voice prompt system;
the laser sheet light source detection module comprises a sheet light source generator and a sheet light source receiving belt, wherein the sheet light source generator is arranged above the platform door in an inclined manner, and the sheet light source receiving belt is arranged on the platform ground close to the platform door; when the passenger crosses the sheet light source receiving belt, the sheet light source is shielded, so that the received light is reduced, and a current reduction signal is output to a control system;
the image recognition system is arranged above the platform, and when receiving a signal sent by the control system that the output current of the film light source receiving belt is reduced, the image recognition system performs image recognition on passengers at the position of the film light source receiving belt and judges whether the passengers cross the boundary into the dangerous area;
the infrared irradiation array is arranged above the platform, and irradiates the boundary-crossing passengers through the boundary-crossing passenger position information returned by the image recognition system;
the voice prompt system is arranged at each platform door and prompts the boundary-crossing passengers to return to the safe area;
the communication module is used for realizing communication connection between the control module and the anti-pinch system, the anti-injury system and the platform door control system;
the control module is used for controlling actions of the anti-pinch system and the anti-injury system.
2. The system according to claim 1, wherein one detection module is responsible for detecting a corresponding set of platform doors, and a detection area of the detection module covers a rectangular area surrounded by the opening width of the platform doors as a long side and the distance between the platform doors and the train doors as a short side.
3. The subway station platform door redundancy protection system as claimed in claim 1,
a first laser power supply module, a laser and a linear laser glass sheet are sequentially arranged in the sheet light source generator, the first laser power supply module converts 220V voltage into voltage required by the laser, and light emitted by the laser passes through the linear laser glass sheet to form a sheet light source of a linear grating;
a plurality of light source receiving amplifiers are arranged on the sheet light source receiving belt and amplify received light source information to an outputtable current signal; each light source receiving amplifier is an address signal, and when the passenger crosses the light source receiving amplifier of the address, the corresponding light source receiving amplifier simultaneously outputs the address signal to the image recognition system.
4. The subway station platform door redundancy protection system as claimed in claim 1, wherein a second laser power supply module for supplying power to a plurality of infrared emitters is provided in said infrared irradiation array, laser lens glass sheets are provided respectively on outer sides of said plurality of infrared emitters, said laser lens glass sheets focus and amplify point light sources of corresponding infrared emitters respectively.
5. A protection method of the subway station platform door redundancy protection system based on claim 1, characterized by comprising the following steps:
step 1, receiving signals by a platform door and a train door to start closing, and detecting whether the platform door is subjected to closing resistance in the closing process: if the platform door is subjected to closing resistance, the platform door motor rotates reversely, and the platform door is opened; if the platform door and the train door are not subjected to the closing resistance, the platform door and the train door are closed and the next step is carried out;
step 2, the detection module executes area detection and transmits the acquired data back to the control module;
and 3, judging the shapes of the people and the objects by the control module according to the returned data: if the judgment results of all platform doors are 'no clamped passenger or article', the control module sends a 'normal' signal to the platform door control system through the communication module, the platform door control system sends a signal with a normal platform door state to the subway signal system, and after the subway signal system confirms that other related signals are normal, a train is started by sending a signal allowing departure to the train; if the door of any platform is judged to have the clamped passenger or article, the next step is carried out;
step 4, the control module sends an 'abnormal' signal to the platform door control system through the communication module, and meanwhile, the acousto-optic alarm gives an alarm; the platform door control system receives the abnormal signal and then controls the platform door to open so that the clamped passengers or articles are separated from danger;
step 5, the platform door receives a closing signal, the steps 1 to 4 are repeated until the control module sends a 'normal' signal to the platform door control system, after the subway signal system confirms that other related signals are normal, a train departure permission signal is sent to the train, the train door and the platform door are closed at the moment, and then the train starts to depart from the station;
step 6, when the vehicle door and the platform door are closed in the step 5, the laser sheet light source detection module detects whether passengers cross the sheet light source receiving belt, and if the sheet light source is blocked, a current reduction signal is output to the control system;
step 7, when the image recognition system receives a signal sent by the control system that the output current of the film light source receiving belt is reduced, the image recognition system performs image recognition on passengers at the position of the film light source receiving belt and judges whether the passengers cross the boundary into the dangerous area;
step 8, if passengers cross the boundary into the dangerous area, the infrared irradiation array irradiates the boundary-crossing passengers according to the boundary-crossing passenger position information; meanwhile, the voice prompt system prompts the boundary-crossing passenger to return to the safe area.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910823751.6A CN110509933B (en) | 2019-09-02 | 2019-09-02 | Platform door redundancy protection system and method for subway station |
| LU101919A LU101919B1 (en) | 2019-09-02 | 2020-07-10 | Redundancy protection system and method for platform screen door in subway station |
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| CN201910823751.6A CN110509933B (en) | 2019-09-02 | 2019-09-02 | Platform door redundancy protection system and method for subway station |
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| KR100799317B1 (en) * | 2007-08-06 | 2008-02-12 | (주)한일에스티엠 | A safety system at a platform and method for controlling the same |
| CN108382304B (en) * | 2018-02-09 | 2020-12-11 | 上海市城市建设设计研究总院（集团）有限公司 | Operation method of subway platform door work monitoring device based on LTE communication |
| CN208134323U (en) * | 2018-03-20 | 2018-11-23 | 天津城建大学 | Metro safety access control system |
| CN108930474A (en) * | 2018-08-29 | 2018-12-04 | 刘紫瑄 | A kind of anti-pinch device for fast bus station |
| CN109435965B (en) * | 2018-10-16 | 2020-09-25 | 中铁第一勘察设计院集团有限公司 | Automatic pre-alarm system for faults of subway train doors and platform doors |
| CN109649411B (en) * | 2019-01-02 | 2023-12-15 | 中铁第四勘察设计院集团有限公司 | Platform door linkage device and method suitable for intelligent rail |
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