CN210011737U - Laser scanning anti-pinch system suitable for rail transit platform door - Google Patents
Laser scanning anti-pinch system suitable for rail transit platform door Download PDFInfo
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- CN210011737U CN210011737U CN201920668111.8U CN201920668111U CN210011737U CN 210011737 U CN210011737 U CN 210011737U CN 201920668111 U CN201920668111 U CN 201920668111U CN 210011737 U CN210011737 U CN 210011737U
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Abstract
The utility model discloses a laser scanning prevents pressing from both sides system suitable for track traffic platform door belongs to platform door safety inspection technical field, and it sets up laser scanning unit and laser receiving unit through corresponding on the end door at platform both ends to the correspondence sets up scanning steering wheel, rotating electrical machines and rotation axis, realizes preventing pressing from both sides the system through the control that corresponds rotating electrical machines and stretches into or keep away from the train gauge limit, and realizes the face scanning detection of laser through the corresponding control of scanning steering wheel. The utility model discloses a laser scanning prevents pressing from both sides system, its simple structure, it is simple and convenient to set up, can effectively realize between platform door subassembly and the train automobile body the face scanning of people or thing and detect, ensure the security of station operation, the accuracy that detects is high, the error is little, and prevent pressing from both sides the system and not invade the train gauge when the train moves, can fully ensure the stability of train operation, reduce and prevent pressing from both sides the damage of system to the train automobile body, the life of preventing pressing from both sides the system is also longer, has better application prospect and spreading value.
Description
Technical Field
The utility model belongs to the technical field of platform door safety inspection, concretely relates to laser scanning who is applicable to track traffic platform door prevents pressing from both sides system.
Background
With the continuous acceleration of the urbanization process, the application of rail transit is more and more common. Compared with other urban traffic systems, the rail transit system has the advantages that the traffic volume is large, the accuracy is high, people can go out conveniently, the rail transit system does not occupy the road running space of automobiles and buses, and the urban congestion problem is improved.
In the operation process of rail transit, a platform door system is generally arranged on a platform of the rail transit, and is used for distinguishing the platform from a track and realizing the boarding and disembarking of passengers. Due to the consideration of the train clearance in the running process of the train, the arrangement of the platform door system often needs to meet the requirement that a certain distance is reserved between the platform door system and the train which stops the station, so that a gap with a certain width exists between the platform door system and the train which stops the station, and certain potential safety hazards exist in the running process of the platform door system. In recent years, there are many accidents in which a passenger of a rail transit is caught between a closed platform door and a train door, and such accidents are particularly likely to occur when the passenger wants to forcibly get on the train even when the platform door and the train door are about to be closed, or when the passenger gets on or off the train in a crowded manner.
Obviously, in order to improve the safety of rail transit operation, firstly, passengers need to improve safety awareness and safely ride a bus; secondly, the related improvement of the existing rail transit station is also needed to improve the safety of the station operation. Therefore, many operation departments add anti-pinch safety measures on the rail transit platform, and the existing anti-pinch safety measures generally include the following: 1. the safety baffle is additionally arranged on the edge of the sliding door of the platform door, so that the gap between the train door and the platform door is reduced, and the possibility of passengers entering the gap is reduced. The method can only prevent passengers from actively entering the clearance area, but cannot prevent the passengers from being passively squeezed into the clearance from the interior of the train, and the train is more dangerous when being started; 2. the active infrared detection system is installed at a station and generally comprises an infrared transmitting tube and an infrared photoelectric receiving tube which are respectively arranged at two sides of a platform, wherein an infrared signal is transmitted to a space between a platform door and a train by the infrared transmitting tube and is received by the infrared photoelectric receiving tube. When there is a barrier between the platform door and the train, the infrared receiving tube can not receive the infrared signal sent out from opposite side and send out alarm. Although the method can improve the safety of the platform door system to a certain degree, the accuracy is poor and certain limitation exists due to the fact that the divergence angle and the light spot of the light beam emitted by the infrared emission tube are often large, the power density attenuation is large during transmission, and the phenomenon of spurious reflection is easy to occur during narrow-gap transmission, so that alarm leakage or spurious alarm is caused; 3. the station is provided with the correlation type laser detection system, the laser transmitter and the terminal receiver are respectively arranged at two ends of the station, the laser transmitter transmits laser signals to the terminal receiver, the receiver converts the received modulated optical signals into corresponding electric signals, and when the light beams are intercepted, the alarm signals are sent to the control host to ensure the safety of the operation of the platform door system. The system can improve the safety of the platform operation to a certain extent and reduce the condition that passengers are clamped in front of the platform door and the vehicle body. However, due to the straightness of laser transmission, parallel laser correlation has a certain detection blind area, the detection accuracy cannot be fully ensured, and in addition, the existing laser detection system often needs to invade a limit, so that certain influences are caused on the setting stability of the detection system and the running safety of a train; meanwhile, the existing laser detection system usually generates displacement due to the vibration of the environment in the long-term use process, so that the misstatement occurs due to the deviation of correlation, the maintenance and the repair are frequently carried out, the operation cost of a station is increased, and great inconvenience is caused.
SUMMERY OF THE UTILITY MODEL
To the above defect of prior art or improve in the demand one or more, the utility model provides a laser scanning prevents pressing from both sides system suitable for track traffic platform door, wherein correspond respectively through at the platform both ends and set up laser emitter and laser inductor, and correspond and set up rotating electrical machines and scanning steering wheel, correspond with its control laser emitter and laser inductor and deflect, thereby can effectively realize the face scanning between platform door and the train automobile body and detect, enlarge the cover face that detects, reduce the blind area that detects, reduce and prevent the invasion of pressing from both sides system to the train boundary limit, guarantee the security of platform operation in-process.
In order to achieve the above object, the present invention provides a laser scanning anti-pinch system suitable for rail transit platform doors, which is characterized in that the system comprises at least one laser scanning unit and at least one laser receiving unit respectively arranged at two ends of a linear platform;
the laser scanning unit is provided with at least one laser scanning unit, the laser receiving unit is provided with at least one rotating motor, the rotating motors are a first motor and a second motor, the two rotating motors are respectively fixed on end doors at two ends of the platform along the longitudinal direction, output shafts of the two rotating motors are respectively arranged along the vertical direction, rotating shafts are respectively arranged corresponding to the two rotating motors, the rotating shafts are respectively provided with a first rotating shaft and a second rotating shaft, and the two rotating shafts are respectively coaxially and fixedly connected with the output shafts of the corresponding rotating motors, so that the two rotating shafts can rotate around a shaft under the control of the corresponding rotating motors;
the laser scanning unit comprises a laser emitter capable of emitting laser and a scanning steering engine fixedly connected to the periphery of the first rotating shaft, a scanning output shaft of the scanning steering engine is horizontally arranged, a scanning swing arm is coaxially arranged corresponding to the scanning output shaft, one end of the scanning swing arm is fixedly connected with the scanning output shaft, and the other end of the scanning swing arm is fixedly connected with the laser emitter, so that the laser emitter can deflect around the axis of the scanning swing arm in a reciprocating mode by a certain angle under the control of the scanning steering engine;
the laser receiving unit comprises a laser sensor which is vertically arranged and is in a long strip shape, the laser sensor can receive laser emitted by the laser emitter, and the laser sensor is fixedly connected to the periphery of the second rotating shaft through a plurality of sensor swing arms; the laser scanning unit can be driven by the first rotating shaft to deflect at a certain angle under the control of the first motor, and corresponding adjustment of extending into a train limit in working and keeping away from the train limit in non-working is achieved.
As a further improvement of the present invention, the laser scanning unit is two, which are arranged along the vertical interval.
As a further improvement of the present invention, the laser scanning unit is converted into the angle of the rotation required by the working state from the non-working state and is equal to the laser receiving unit is converted into the angle of the rotation required by the working state from the non-working state.
As a further improvement of the utility model, the laser scanning unit with the laser receiving unit is 90 by the required rotatory angle of operating condition conversion of off-working condition, just the platform door of laser scanning unit on off-working condition parallel and level platform, and the laser receiving unit is at off-working condition parallel and level the platform door.
As a further improvement of the present invention, the deflectable angle of the output shaft of the scanning steering engine is 3 ° to 8 °, and is further preferably 5 °.
As a further improvement of the present invention, the laser scanning unit and/or the laser receiving unit is disposed at the junction between the end door and the platform door.
As the further improvement of the utility model, the laser sensor set up length for 1.0 ~ 1.5m, further preferred 1.2 m.
As a further improvement, the bottom of the laser sensor is 0.1-0.3 m away from the top surface of the standing bedplate.
The above-described improved technical features may be combined with each other as long as they do not conflict with each other.
Generally, through the utility model discloses above technical scheme who conceives compares with prior art, has following beneficial effect:
(1) the utility model discloses a laser scanning prevents pressing from both sides system suitable for track traffic platform door, it is through corresponding setting laser scanning unit and the laser receiving unit on the end door at track traffic platform both ends, and correspond and set up rotating electrical machines and rotation axis, control laser scanning unit and laser receiving unit by the rotating electrical machines correspondence and deflect certain angle in the transverse plane, keep away from the train limit when the train moves in order to realize laser scanning prevents pressing from both sides system, and stretch into the train limit when detecting, thereby promote the accuracy of scanning detection when reducing the rubbing of preventing pressing from both sides system to the train, ensure the safe operation of train, promote the stability of setting of preventing pressing from both sides system, prolong the life who prevents pressing from both sides system;
(2) the utility model discloses a laser scanning anti-pinch system suitable for track traffic platform door, it sets up scanning swing arm and scanning steering wheel through corresponding laser emitter, drives laser emitter by scanning steering wheel correspondence and deflects certain angle in the vertical plane, realizes the laser scanning detection in the vertical plane, compares in point-to-point correlation detection, has promoted the cover surface of detection greatly, has reduced the production of detection blind area, has promoted the accuracy of detection, has further promoted the operation security of platform;
(3) the utility model discloses a laser scanning prevents pressing from both sides system suitable for track traffic platform door, it feeds back abnormal signal through receiving discontinuous scanning light or can not receive scanning light at laser receiving element to guarantee that there is not people or thing between platform door and the train when the platform door is closed, and through the corresponding fine setting of rotating electrical machines, effectively avoided because of laser emitter and laser inductor misalignment the detection error that leads to, guaranteed the accuracy of preventing pressing from both sides system feedback result, simplified the laser scanning prevents pressing from both sides system calibration process;
(4) the utility model discloses a control method of laser scanning anti-pinch system suitable for track traffic platform door, its step is simple, and control is simple and convenient, can effectively avoid the invasion of train boundary limit by the laser anti-pinch system when the train operation, guarantees that no people or thing exist between train body and the platform door before the train leaves the station, fully guarantees the security of platform operation;
(5) the utility model discloses a laser scanning prevents pressing from both sides system suitable for track traffic platform door, a structure is simple, the setting is simple and convenient, can effectively realize the scanning detection of people or thing between platform door subassembly and the train automobile body, ensure the security of station operation, the accuracy that detects is high, the error is little, and prevent that pressing from both sides the system and not invade the train gauge when the train moves, can fully ensure the stability of train operation, the reduction prevents pressing from both sides the damage of system to the train automobile body, the life who prevents pressing from both sides the system is also longer, better application prospect and spreading value have.
Drawings
Fig. 1 is a schematic structural view of a laser scanning anti-pinch system in an embodiment of the present invention during operation;
fig. 2 is a schematic structural diagram of a laser scanning anti-pinch system in an embodiment of the present invention when not in operation;
FIG. 3 is a schematic structural diagram of an embodiment of the present invention illustrating a laser scanning unit of the anti-pinch system during non-operation;
fig. 4 is a schematic structural view of the laser scanning anti-pinch system according to an embodiment of the present invention when the laser receiving unit is not in operation;
FIG. 5 is a schematic structural diagram of a laser scanning unit of the anti-pinch system for laser scanning according to an embodiment of the present invention;
fig. 6 is a schematic structural view of a laser receiving unit of the anti-pinch system for laser scanning according to an embodiment of the present invention during operation;
fig. 7 is a schematic structural diagram of a laser scanning unit of an anti-pinch system for laser scanning according to an embodiment of the present invention before scanning;
fig. 8 is a schematic structural diagram of a laser scanning unit of an anti-pinch system for laser scanning according to an embodiment of the present invention during scanning;
in all the figures, the same reference numerals denote the same features, in particular: 1. the laser scanning device comprises a laser scanning unit, 101, a laser transmitter, 102, a scanning steering engine, 103, a first motor, 104, a scanning swing arm and 105, a first rotating shaft; 2. the laser receiving unit 201, the laser sensor 202, the second motor 203, the second rotating shaft 204 and the sensor swing arm; 3. station deck, 4. station door assembly, 401. end door, 402. station door; 5. the light is scanned.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.
Furthermore, the technical features mentioned in the embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.
The utility model discloses laser scanning in the preferred embodiment prevents pressing from both sides the system as shown in figure 1 and 2, wherein, figure 1 is laser scanning prevents pressing from both sides the state schematic diagram of system during operation, and figure 2 is laser scanning prevents pressing from both sides the state schematic diagram of system not during operation. As can be seen from the drawings, the laser scanning anti-pinch system is arranged on a linear platform of rail transit, specifically, the linear platform of rail transit comprises a platform plate 3 arranged corresponding to a train rail running area, a platform door assembly 4 is correspondingly arranged on the platform plate 3, obviously, the platform door assembly 4 is arranged corresponding to a train parking area, and comprises end doors 401 arranged at two ends respectively and a platform door 402 arranged between the two end doors 401 along a straight line, and the platform door 402 in the preferred embodiment comprises a safety door arranged corresponding to a train body and a sliding door arranged corresponding to a train door; further, the platform door 402 is disposed along the longitudinal direction, and the end door 401 is preferably disposed along the transverse direction, with the rail running direction of the train being the longitudinal direction, and two ends of the platform door 402 are correspondingly connected to one side of the end door 401 near the rail running area.
Further, the anti-pinch system for laser scanning is arranged on one side of the end door 401 close to the rail running area, preferably arranged at the joint of the end door 401 and the platform door 402, and comprises a laser scanning unit 1 and a laser receiving unit 2 which are respectively arranged on the two end doors 401. Among them, at least one laser scanning unit 1, and in a preferred embodiment, two laser scanning units are provided at intervals in the vertical direction, corresponding to the laser receiving unit 2, as shown in fig. 1 and 2. Obviously, the laser scanning unit may be provided in one or more units, which may be preferred according to actual needs.
Further, the laser scanning unit 1 in the preferred embodiment includes a laser emitter 101, a scanning steering engine 102, and a first motor 103, the first motor 103 is correspondingly disposed at an end of the end door 401, and further preferably disposed at a connection between the end door 401 and the platform door 402, an output shaft of the first motor is vertically disposed, and a first rotating shaft 105 is coaxially disposed corresponding to the output shaft of the first motor 105, one end of the first rotating shaft 105 is coaxially connected to the output shaft of the first motor 103, and the other end is correspondingly matched through a revolute pair, so that the first rotating shaft 105 can rotate around a shaft by corresponding control of the first motor 103; further, at least one scanning steering engine 102 is correspondingly arranged on the first rotating shaft 105, and the number of the scanning steering engines 102 is consistent with that of the laser scanning units 1, so that the rotation of the first rotating shaft 105 can realize the rotation control of all the laser scanning units 1.
Further specifically, in a preferred embodiment, the scanning steering engine 102 is fixedly arranged on the first rotating shaft 105, an output shaft of the scanning steering engine 102 is horizontally arranged, a scanning swing arm 104 is coaxially arranged corresponding to the output shaft of the scanning steering engine 102, one end of the scanning swing arm is fixedly connected with the output shaft of the scanning steering engine 102, a laser emitter 101 is correspondingly arranged at the other end of the scanning swing arm, and then the scanning swing arm 104 can rotate around a shaft under the corresponding control of the scanning steering engine 102, so that the laser emitter 101 is driven to swing around the axis of the scanning swing arm 104, and the laser emitter 101 is scanned on a vertical plane with a certain width; further, in the preferred embodiment, the deflection angle of the two laser transmitters 101 is 3 ° to 8 °, more specifically 5 °, and the precision of the deflection angle can reach 0.05 °, which can be achieved by correspondingly setting the operating state of the scanning steering engine 102, when the laser transmitters 101 do not start scanning, as shown in fig. 7, and when the laser transmitters 101 start scanning, as shown in fig. 8.
Further, the laser transmitter 101 in the preferred embodiment can be controlled by the first motor 103 to deflect to a position away from the rail-bound region when not in operation, as in the preferred embodiment, the laser scanning unit 1 is flush with the platform door 402 when not in operation, as shown in fig. 3, when the axis of the scanning swing arm 104 is disposed along the longitudinal direction; of course, the laser transmitter 101 may also be rotated to the position inside the platform door 402 or slightly outside the platform door 402 under the control of the first motor 103 as long as it does not intrude into the train boundary of the train; to improve the accuracy of the control, the first motor 103 in the preferred embodiment rotates 90 ° in a single rotation, rotating the axis of the scanning swing arm 104 from the longitudinal direction to the transverse direction. Since the laser scanning anti-trap system is designed to detect whether a person or object is trapped between the station door assembly 4 and the train, and particularly within the confined space of the train, the scanning swing arm 104 is preferably arranged to a length that allows the laser transmitter 101 to extend into the train's confines during operation and ensures that the laser transmitter 101 is spaced from the train's body.
Further, the laser receiving unit 2 in the preferred embodiment is disposed corresponding to the laser scanning unit 1, and includes a laser sensor 201 disposed vertically and in a long strip shape, and a second motor 202, a second rotating shaft 203, and a sensor swing arm 204 are disposed corresponding to the laser sensor 201; wherein, the second motor 202 is correspondingly arranged at the end part of the end door 401 on the side departing from the laser scanning unit 1, which is close to the rail running area, the output shaft of the second motor is vertically arranged, one end of the second rotating shaft 203 is coaxially and fixedly connected with the output shaft of the second motor 202, the second rotating shaft 203 is correspondingly provided with a plurality of sensor swing arms 204, the axis of each sensor swing arm 204 is horizontally arranged, one end of each sensor swing arm is fixedly connected with the second rotating shaft 203, the other end of each sensor swing arm is fixedly connected with the laser sensor 201, then the second rotating shaft 203 can rotate the laser sensor 201 to the position flush with the platform door 402 through the corresponding control of the second motor 202, or the laser sensor 201 is rotated to extend into the train limit and is aligned with each laser scanning unit 1 which is rotated in place in the longitudinal direction, then the scanning light 5 emitted by the laser emitter 101 can correspondingly hit the sensing surface of the laser sensor 201, as shown in, thereby detecting whether a person or an object exists between the laser sensors 201 of the laser transmitter 101.
Further, in the preferred embodiment, the vertical length of the laser sensor 201 corresponds to the deflection angle of the laser transmitter 101, so that when each laser transmitter 101 deflects to two limit positions, the scanning light 5 emitted by the laser transmitter 101 can be received by the laser sensor 201, and in the preferred embodiment, the vertical length of the laser sensor 201 is 1m to 1.5m, and more specifically, 1.2 m. Of course, the bottom of the laser sensor 201 is higher than the top surface of the platform board 3, preferably 10-30 cm higher than the top surface of the platform board, so as to ensure that the structures such as the baffle plate corresponding to the platform door 402 do not interfere with the operation of the laser scanning anti-pinch system. Preferably, the laser scanning anti-pinch system can start to work immediately after the train is stopped stably, or can start to work within a certain time before the platform door is ready to be closed, and meanwhile, after the laser scanning anti-pinch system deflects into the train limit, the laser emitter 101 can start to deflect and scan immediately, or can start to deflect and scan when the platform door is ready to be closed. In a word, the working time interval of the laser scanning anti-pinch system can be adjusted according to actual needs, the adjusting space is large, and the flexibility is high.
In addition, after a long period of reciprocal oscillation, the alignment relationship between the laser scanning unit 1 and the laser receiving unit 2 may be slightly shifted, therefore, the alignment relationship between the laser scanning unit 1 and the laser receiving unit 2 needs to be calibrated to ensure that after the two components are rotated in place, the scanning light 5 of the laser scanning unit 1 can accurately hit the middle of the sensing surface of the laser sensor 201 without being blocked by a barrier, and the position calibration between the laser scanning unit 1 and the laser receiving unit 2 can be completed within the window empty time of the station, by the fine angle adjustment of the first motor 103 and/or the second motor 202, the calibration process can be completed, and after the calibration is completed, the single-rotation angle of the first motor 103 and the second motor 202 is set to be the same, so that the laser transmitter 101 and the laser sensor 201 can be effectively guaranteed to be accurately retracted and aligned.
Further, the control method of the laser scanning anti-pinch system in the preferred embodiment of the present invention preferably includes the following steps:
s1: before the train enters the station, the laser scanning unit 1 and the laser receiving unit 2 are in a non-working state, the laser scanning unit 1 and the laser receiving unit 2 do not invade the limit of the train, and are preferably arranged in parallel with the platform door 402, and the axes of the scanning swing arm 104 and the sensor swing arm 204 are arranged along the longitudinal direction;
s2: after the train enters the station and stops stably, the platform door corresponding to the train door starts to work, and passengers start to get on or off the train; meanwhile, the laser scanning unit 1 and the laser receiving unit 2 start to work after receiving signals, and are respectively driven by the first motor 103 and the second motor 202 to rotate to one side close to the rail running area by a certain angle, preferably 90 degrees in the embodiment, so that the laser scanning unit 1 and the laser receiving unit 2 respectively deflect to extend into the limitation of a train and are aligned along the longitudinal direction, at this time, the scanning swing arm 104 and the sensor swing arm 204 are perpendicular to the rail running direction of the train, namely, the axes of the two swing arms are arranged along the transverse direction;
s3: the laser scanning unit 1 and the laser receiving unit 2 start to work, the laser transmitter 101 generates scanning light 5 to be transmitted to the laser sensor 201, and the scanning steering engine 102 starts to work to drive the laser transmitter 101 to perform reciprocating swing around the axis of the scanning swing arm 104, so that the planar scanning of the scanning light 5 between the laser scanning unit 1 and the laser receiving unit 2 is realized;
s4: before the train is going to exit, the platform door of the station starts to be closed slowly, at the moment, the laser receiving unit 2 correspondingly feeds back signals to the train and/or the station control room, and then whether the platform door needs to be closed in an emergency stop mode or not is judged according to the signals fed back by the laser receiving unit 2, and whether the train can be opened from the station or not is judged;
specifically, when the laser receiving unit 2 can receive the continuous and uninterrupted scanning light 5, it indicates that no people or objects are sandwiched between the platform door assembly and the train body, and at this time, a "normal" signal is fed back, the platform door can be correspondingly closed, and the train can exit after the platform door is closed.
When the laser receiving unit 2 cannot receive the continuous scanning light 5, it indicates that people or objects are clamped between the platform door assembly and the train body, and at this time, an 'abnormal' signal is fed back, the platform door is closed temporarily, and the train stops going out.
Before feeding back the "abnormal" signal, the deflection position of the laser emitter 101 and/or the laser sensor 201 may be fine-tuned by the driving of the first motor 103 and/or the second motor 202, and if the laser sensor 201 can receive the continuous and uninterrupted scanning light 5 after fine tuning, the "normal" signal is fed back; if the laser sensor 201 can not detect the continuous and uninterrupted scanning light 5 after the fine adjustment, an abnormal signal is fed back, the platform door is closed temporarily, and the train stops going out.
S5: when the train is ready to be out of the station (people or objects are not clamped between the platform door and the train body), the train starts when the platform door is closed, and the laser scanning unit 1 and the laser receiving unit 2 are controlled by the first motor 103 and the second motor 202 to deflect towards two sides respectively so as to be far away from a rail running area of the train and restore to the initial state.
The laser scanning anti-pinch system suitable for the rail transit platform door effectively realizes the scanning detection whether people or objects exist between the platform door and a train body by respectively arranging the laser scanning unit and the laser receiving unit at the two ends of the platform corresponding to the rail running area of the train and scanning the laser scanning unit in a certain deflection angle, effectively realizes the surface scanning detection compared with the original point-to-point detection, effectively enlarges the covering surface of the detection, reduces the blind area of the scanning, fully ensures the safety in the operation process of the rail transit platform, can be driven by the rotating shaft to deflect under the control of the corresponding motor when not in operation, further keeps away from the limit of the train, ensures that the arrangement of the laser scanning anti-pinch system does not influence the normal operation of the train, the stability of the laser scanning anti-pinch system is improved, and the service life of the laser scanning anti-pinch system is prolonged; in addition, laser scanning unit and laser receiving element can deflect the fine setting under the drive that corresponds the motor, and then effectively avoided laser scanning to prevent that the system from receiving the influence of environmental vibration, the maintenance is protected the misalignment problem that the manual adjustment caused, has realized preventing the automatic calibration of system of pressing from both sides, has reduced the work load of manual maintenance, calibration, has promoted the accuracy of preventing the work of system of pressing from both sides.
The utility model provides a laser scanning prevents pressing from both sides system, its simple structure, it is simple and convenient to set up, can effectively realize the scanning of people or thing between platform door subassembly and the train automobile body and detect, ensure the security of station operation, the accuracy of detection is high, the error is little, and prevent pressing from both sides the system and not invade the train gauge when the train moves, can fully ensure the stability of train operation, the reduction prevents pressing from both sides the damage of system to the train automobile body, the life who prevents pressing from both sides the system is also longer, has better application prospect and spreading value.
It will be understood by those skilled in the art that the foregoing is merely a preferred embodiment of the present invention, and is not intended to limit the invention to the particular forms disclosed, but on the contrary, the intention is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention as defined by the appended claims.
Claims (8)
1. A laser scanning anti-pinch system suitable for a rail transit platform door is characterized by comprising at least one laser scanning unit and at least one laser receiving unit, wherein the at least one laser scanning unit and the at least one laser receiving unit are respectively arranged at two ends of a linear platform;
the laser scanning unit is provided with at least one laser scanning unit, the laser receiving unit is provided with at least one rotating motor, the rotating motors are a first motor and a second motor, the two rotating motors are respectively fixed on end doors at two ends of the platform along the longitudinal direction, output shafts of the two rotating motors are respectively arranged along the vertical direction, rotating shafts are respectively arranged corresponding to the two rotating motors, the rotating shafts are respectively provided with a first rotating shaft and a second rotating shaft, and the two rotating shafts are respectively coaxially and fixedly connected with the output shafts of the corresponding rotating motors, so that the two rotating shafts can rotate around a shaft under the control of the corresponding rotating motors;
the laser scanning unit comprises a laser emitter capable of emitting laser and a scanning steering engine fixedly connected to the periphery of the first rotating shaft, a scanning output shaft of the scanning steering engine is horizontally arranged, a scanning swing arm is coaxially arranged corresponding to the scanning output shaft, one end of the scanning swing arm is fixedly connected with the scanning output shaft, and the other end of the scanning swing arm is fixedly connected with the laser emitter, so that the laser emitter can deflect around the axis of the scanning swing arm in a reciprocating mode by a certain angle under the control of the scanning steering engine;
the laser receiving unit comprises a laser sensor which is vertically arranged and is in a long strip shape, the laser sensor can receive laser emitted by the laser emitter, and the laser sensor is fixedly connected to the periphery of the second rotating shaft through a plurality of sensor swing arms; the laser scanning unit can be driven by the first rotating shaft to deflect at a certain angle under the control of the first motor, and corresponding adjustment of extending into a train limit in working and keeping away from the train limit in non-working is achieved.
2. The laser scanning anti-pinch system suitable for the rail transit platform door according to claim 1, wherein the laser scanning units are two units spaced apart from each other in the vertical direction, and the two laser scanning units are vertically aligned.
3. The laser scanning anti-pinch system suitable for the rail transit platform door according to claim 1 or 2, wherein the angle of rotation required for the laser scanning unit to be converted from the non-operating state to the operating state is equal to the angle of rotation required for the laser receiving unit to be converted from the non-operating state to the operating state.
4. The laser scanning anti-pinch system suitable for rail transit platform doors according to claim 3, wherein the laser scanning unit and the laser receiving unit are rotated by 90 ° from the non-operating state to the operating state, and the laser scanning unit is disposed on the platform door of the platform flush with the non-operating state, and the laser receiving unit is disposed on the platform door flush with the non-operating state.
5. The laser scanning anti-pinch system suitable for the rail transit platform door according to claim 1, 2 or 4, wherein the deflectable angle of the output shaft of the scanning steering engine is 3-8 degrees.
6. The laser scanning anti-pinch system suitable for the rail transit platform door according to claim 1, 2 or 4, wherein the laser scanning unit and/or the laser receiving unit is arranged at the connecting junction of the end door and the platform door.
7. The laser scanning anti-pinch system suitable for the rail transit platform door according to claim 1, 2 or 4, wherein the laser sensor is arranged at a length of 1.0-1.5 m.
8. The laser scanning anti-pinch system suitable for the rail transit platform door according to claim 1, 2 or 4, wherein the bottom of the laser sensor is 0.1-0.3 m away from the top surface of the platform plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920668111.8U CN210011737U (en) | 2019-05-10 | 2019-05-10 | Laser scanning anti-pinch system suitable for rail transit platform door |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920668111.8U CN210011737U (en) | 2019-05-10 | 2019-05-10 | Laser scanning anti-pinch system suitable for rail transit platform door |
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| CN210011737U true CN210011737U (en) | 2020-02-04 |
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| CN201920668111.8U Withdrawn - After Issue CN210011737U (en) | 2019-05-10 | 2019-05-10 | Laser scanning anti-pinch system suitable for rail transit platform door |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110103991A (en) * | 2019-05-10 | 2019-08-09 | 中铁第四勘察设计院集团有限公司 | Laser scanning anti-clipping system and its control method suitable for rail traffic platform door |
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2019
- 2019-05-10 CN CN201920668111.8U patent/CN210011737U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110103991A (en) * | 2019-05-10 | 2019-08-09 | 中铁第四勘察设计院集团有限公司 | Laser scanning anti-clipping system and its control method suitable for rail traffic platform door |
| CN110103991B (en) * | 2019-05-10 | 2023-08-01 | 中铁第四勘察设计院集团有限公司 | Laser scanning anti-pinch system suitable for rail transit platform door and control method thereof |
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Granted publication date: 20200204 Effective date of abandoning: 20230801 |