CN203974806U - Shielded gate based on machine vision and the train door anti-pinch control monitor unit that transfinites - Google Patents
Shielded gate based on machine vision and the train door anti-pinch control monitor unit that transfinites Download PDFInfo
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- CN203974806U CN203974806U CN201420384474.6U CN201420384474U CN203974806U CN 203974806 U CN203974806 U CN 203974806U CN 201420384474 U CN201420384474 U CN 201420384474U CN 203974806 U CN203974806 U CN 203974806U
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- shielded gate
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- train door
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Abstract
The utility model discloses shielded gate based on machine vision and the train door anti-pinch control monitor unit that transfinites, comprise detecting unit and Central Processing Unit (CPU), described detecting unit comprises: vision sensor, PLC controller and signal switcher, described vision sensor is all connected with PLC controller with signal switcher, is controlled and is detected and signal transmission exchange by it; Described Central Processing Unit (CPU), comprises signal switcher, central controller and subway shield door and train door controller.Shielded gate based on machine vision of the present utility model and train door anti-pinch its useful technique effect of control monitor unit that transfinites is, can effectively improve transport capacity, improve train running speed, only be subject to the restriction of design safety speed per hour, reduce the unnecessary length of the halt of platform, in safe and reliable situation, leaving from station as far as possible fast.
Description
Technical field
The utility model relates to safety monitoring technical field, relates in particular to a kind of shielded gate based on machine vision and the train door anti-pinch control monitor unit that transfinites.
Background technology
Between shielded gate refers to that on railway platform the mode with glass curtain wall is surrounded and fallen through on railway railway platform and train.When train arrives, then open the upper Train of auto door confession passenger on glass curtain wall.
In order to prevent shielded gate and train door anti-pinch, technical personnel has been studied multiple solution.Wherein, the Chinese utility model patent that the patent No. is ZL201220112328, discloses a kind of automobile door anti-clamping system, and it comprises and is provided with closing of the door state detector, car door folder thing detecting device, annunciator and power supply; Described closing of the door state detector is arranged on the doorframe of Vehicular door; The input termination vehicle accelerator control motor of described closing of the door state detector, shielded gate switch gate output indicator signal connects the input end of train door and shielded gate anti-pinch detecting device, and the mouth of train door and shielded gate anti-pinch detecting device is the input end of device taking alarm and the car door control button of vehicle not; Described car door folder thing detecting device connects power output end.
At present, between common shielded gate and train door, the method for inspection of obstacle mainly contains following three kinds: one, door drive motor current judgement method; Two, laser is to visiting detection method; Three, laser grating detection method.But all there is the problems such as reliability is low, rate of false alarm is high, excess of export platform equipment gauge is installed, installation adjustment is loaded down with trivial details in above-mentioned various schemes.
Utility model content
The technical problems to be solved in the utility model is to provide a kind of shielded gate based on machine vision and the train door anti-pinch control monitor unit that transfinites, and the ubiquitous in actual use reliability of this current shielded gate detection of obstacles is low, rate of false alarm is high, excess of export platform equipment gauge is installed, the problems such as loaded down with trivial details of adjusting are installed.
For solving the problems of the technologies described above, provide the utility model shielded gate based on machine vision and the train door anti-pinch control monitor unit that transfinites, comprise detecting unit and Central Processing Unit (CPU), described detecting unit comprises: vision sensor, PLC controller and signal switcher, described vision sensor is all connected with PLC controller with signal switcher, is controlled and is detected and signal transmission exchange by it; Described Central Processing Unit (CPU), comprises signal switcher, central controller and subway shield door and train door controller.
Wherein, the velocity scanning that described PLC controller can Millisecond connects the signal of described vision sensor output thereon.
Wherein, described vision sensor is that scanning speed is not less than each 27ms(or 37 times/S) vision sensor.
Wherein, it is characterized in that: described vision sensor is to scan the sensor that the length of side is not less than 6mm object.
Shielded gate based on machine vision of the present utility model and train door anti-pinch its useful technique effect of control monitor unit that transfinites is, can effectively improve transport capacity, improve train running speed, only be subject to the restriction of design safety speed per hour, reduce the unnecessary length of the halt of platform, in safe and reliable situation, leaving from station as far as possible fast.
Brief description of the drawings
Fig. 1 is the transfinite system architecture schematic diagram of control monitor unit of the shielded gate of the utility model based on machine vision and train door anti-pinch.
Detailed description of the invention
Below in conjunction with accompanying drawing, preferred implementation of the present utility model is elaborated.
Embodiment
The shielded gate of the utility model based on machine vision and train door anti-pinch transfinite monitored control system and method, be that one is guaranteed safety of subway operation and passenger safety, improves efficiency of operation, comprehensively reduces the Automatic monitoring systems of subway construction investment and operation cost.
The shielded gate of the utility model based on machine vision and train door anti-pinch transfinite monitored control system and method, comprising: detecting unit and Central Processing Unit (CPU).
Wherein, detecting unit comprises: vision sensor, PLC controller and signal switcher.Above-mentioned vision sensor is all connected with PLC controller with signal switcher, is controlled and is detected and signal transmission exchange by it.
Central Processing Unit (CPU), comprises signal switcher, central controller and subway shield door and train door controller, and central controller operates by master station end telltale.
As shown in Figure 1, the utility model covers door and the train door anti-pinch monitored control system that transfinites, vision sensor is arranged on each platform screen door track upper lateral part position, capable district or railway roadbed, after shielded gate is closed, start immediately system testing, in space between detector shield door and train door, whether accompany object and block feature light source, when detected that object exists or the output signal that transfinites immediately to PLC controller, PLC controller is received after information, output is reserved in the block signal in signal switcher, stop the signal system of central controller not dispatch a car, control the indicator lamp warning flicker of installing on shielded gate simultaneously, be arranged on the status information that train head System Monitor interior or termination, station transmits by wired or wireless signalling methods receiving system main frame, the concrete position that demonstrates folder thing or transfinite, and send acousto-optic alarm message, also can store information, process and forward.
The performance figure of main realization of the present utility model comprise: the velocity scanning that PLC controller system can Millisecond connects the signal of vision sensor output thereon.Shielded gate and train door anti-pinch and the detection monitored control system that transfinites have adopted intelligent vision sensor, each 27ms(37 time/S of its scanning speed), can scan the wisp that is greater than 6mm; Therefore, can avoid pressing from both sides the too small problem that can not survey of thing.The detection mistake that exclusive narrow-band filtering and image matching technology can avoid vibration to cause.Time domain modulation, narrow-band filtering, polarization be except anti-, can accurately get rid of various interference and affect the problem of detection accuracy and wrong report, improved the accuracy of monitoring.Adopt cleaning apparatus for self, greatly reduce the demand of system maintenance.Adopt PLC controller Quick Acquisition process information, can ensure the safe laser detector state of all shielded gates and train door accurately to be gathered in 0.3 second, to greatly improve the efficiency of safety and operation of metro operation, vehicle platform stop or can shorten about 6 seconds run up time.
The shielded gate of the utility model based on machine vision and train door anti-pinch transfinite monitored control system and method, the processing time of whole system can complete in the time range of 0.3 second, greatly improves than the speed of driver observation, can also accommodation curve station.Accuracy of detection, can dynamic scan in detection range to the object that is greater than 6mm.Graphical analysis, vision measurement, interference-free, reliability is high, is applicable to the complex environment of subway.To greatly improve the efficiency of safety and operation of metro operation, the time of the startup that subway stops can shorten for 6 seconds.
In space between quick detection shielded gate and train door, whether have object, dynamic instrumentation precision can be greater than 6mm, avoids pressing from both sides the too small problem that can not survey of thing.Can detect all types of train operation accidents, comprise: shielded gate does not close the accident of putting in place, detectable passenger is clipped in the accident between shielded gate and car door.
Apply system of the present utility model, driver watches without car, and the 6-10 that saves time of at every turn stopping second, one day saves 30-50 minute; If one the travelling length of line is about 18km left and right, station quantity is 16 left and right, and on average the travelling cycle is one hour.Train is at each station at present, and train starts from closing the door to probably needed for 13 seconds, if shortened for 6 ~ 10 seconds run up time, and a cycle of run, a train can be saved 16X2X6=192 second ~ 16X2X10=320 second, is equivalent to 3 ~ 5 minutes.Can improve the freight volume of 1.5 ~ 2.5 trains or save 1.5 ~ 2.5 trains; If every joint 6B compartment of 6 joint marshallings, investment is about 500 ~ 6,000,000 yuan, is also equivalent to save 4500 ~ 7,500 ten thousand yuan, therefore, adopts shielded gate and train door anti-pinch Inspection and monitoring system, and existing safety benefit, has an economic benefit again.Reduce train at station length of the halt, reduced the cycle of train driving circulation, relatively improved average running speed.
Useful technique effect of the present utility model is, can effectively improve transport capacity, and for example: 1, A type compartment one is saved 8,000,000 yuan, Type B compartment one is saved 6,000,000 yuan, needs corresponding increase more piece completely, also needs to lengthen platform simultaneously, invests huge.2, improve train running speed, be only subject to the restriction of design safety speed per hour.3, reduce the unnecessary length of the halt of platform, in safe and reliable situation, leaving from station as far as possible fast.
Machine vision obstacle detection, adopts image vision sensor to detect specific mark; Utilize displacement and the vibration of topography's matching algorithm to camera to compensate.Thereby eliminate vibration displacement to passing the impact of obstacle detection.The adaptive displacement vibration backoff algorithm of this method of inspection ensures its low rate of failing to report, low rate of false alarm and high-accuracy, and its unique mounting means ensures can not invade vehicle gauge.
Image matching technology is a kind of method of image processing, the smallest match position based on image difference.In burnt optics far away.The translation of camera and rotation only bring by the skew of altimetric image.Utilize this feature can to fixed target in vision sensor characteristic quantity mate, to obtain vision sensor because the external cause rotation and the skew that cause.Thereby the position that should occur feature light source compensates, namely whole system allows vibration to cause the principle of micrometric displacement.
Image matching technology detects more reliable, has reduced the requirement that equipment is aimed at.No matter when mounted, still do not need in use strict with alignment request.System calculates by vision the deviation that position appears in auto-compensation characteristic light.Adopt the light intensity signal of about domain 0,1 modulation.Get rid of background interference.Reduce the probability of accidental interference, and can self-checking light source failure state.Adopt the narrow-band filtering technology of mating with characteristic light, get rid of 90% ambient light interference.Adopt polarization technology to get rid of the catoptrical interference of car body.
The shielded gate of the utility model based on machine vision and the train door anti-pinch detection monitored control system that transfinites, native system customer service the ubiquitous in actual use reliability of current shielded gate detection of obstacles low, rate of false alarm is high, excess of export platform equipment gauge is installed, the problems such as loaded down with trivial details of adjusting are installed;
Shielded gate based on up-to-date Machine Vision Detection and train door anti-pinch and the detection monitored control system that transfinites, in conjunction with IM technology.Ensureing to detect effective rate of false alarm that reduces under failure-free prerequisite, solve simultaneously and transfinite and the problem of adjusting is installed.The sensor that is installed on every 4-5 group top or railway roadbed can not invaded platform equipment gauge; When having passenger or foreign body retention between train and shielded gate, monitored control system can send signal, is used for stoping train operation, and Accident prevention occurs; Remind platform staff to take appropriate measures.
The utility model adopts image analysis algorithm, and its method is:
Input parameter:
1, there is no the background image a of foreign matter
2, image b to be detected
Output parameter:
Foreign matter region.(area is 0 expression foreign)
Algorithm flow:
1, ab images match: the two width picture translation errors that bring because of vibrations in order to correct vision sensor.
2, image difference: in order to the inconsistent region of detected image.
3, difference processing: disturb in order to noise, the luminance difference of processing inconsistent region.
4, output: coordinate foreign matter surveyed area for output.
The technical advantage of the machine vision obstacle detection that the utility model adopts, advanced technology, best performance, is swift in response sensitive, and Detection accuracy is high, and rate of false alarm is minimum; Non-contact detection, can be not impaired because of the contact of detection thing; Can easily tackle with layout change, it is relatively convenient to safeguard; Fuselage is little, lightweight, and convenient installation, is arranged on vehicle gauge outside, does not affect traffic safety; Synchronous working, can not produce phase mutual interference.
Finally it should be noted that; the foregoing is only preferred embodiment of the present utility model; instead of restriction to technical solutions of the utility model, any being equal to that the utility model technical characterictic is done, replaces or corresponding improvement, still within protection domain of the present utility model.
Claims (4)
1. the shielded gate based on machine vision and the train door anti-pinch control monitor unit that transfinites, comprise detecting unit and Central Processing Unit (CPU), it is characterized in that, described detecting unit comprises: vision sensor, PLC controller and signal switcher, described vision sensor is all connected with PLC controller with signal switcher, is controlled and is detected and signal transmission exchange by it; Described Central Processing Unit (CPU), comprises signal switcher, central controller and subway shield door and train door controller.
2. shielded gate based on machine vision as claimed in claim 1 and the train door anti-pinch control monitor unit that transfinites, is characterized in that: the velocity scanning that described PLC controller can Microsecond grade connects the signal of described vision sensor output thereon.
3. shielded gate based on machine vision as claimed in claim 1 and the train door anti-pinch control monitor unit that transfinites, is characterized in that: described vision sensor is the vision sensor that scanning speed is not less than each 27ms.
4. shielded gate based on machine vision as claimed in claim 3 and the train door anti-pinch control monitor unit that transfinites, is characterized in that: described vision sensor is to scan the sensor that the length of side is not less than 6mm object.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420384474.6U CN203974806U (en) | 2014-07-14 | 2014-07-14 | Shielded gate based on machine vision and the train door anti-pinch control monitor unit that transfinites |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420384474.6U CN203974806U (en) | 2014-07-14 | 2014-07-14 | Shielded gate based on machine vision and the train door anti-pinch control monitor unit that transfinites |
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| Publication Number | Publication Date |
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| CN203974806U true CN203974806U (en) | 2014-12-03 |
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| CN201420384474.6U Expired - Fee Related CN203974806U (en) | 2014-07-14 | 2014-07-14 | Shielded gate based on machine vision and the train door anti-pinch control monitor unit that transfinites |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105317310A (en) * | 2014-07-14 | 2016-02-10 | 广州天赋人财光电科技有限公司 | Platform screen door and train door anti-pinch ultralimit monitoring system and method based on machine vision |
| CN107191087A (en) * | 2017-05-19 | 2017-09-22 | 西南科技大学 | A kind of train door anti-pinch algorithm based on LSTM |
| CN108891424A (en) * | 2018-07-18 | 2018-11-27 | 王玲 | A kind of safety insulating device for rail transit train |
-
2014
- 2014-07-14 CN CN201420384474.6U patent/CN203974806U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105317310A (en) * | 2014-07-14 | 2016-02-10 | 广州天赋人财光电科技有限公司 | Platform screen door and train door anti-pinch ultralimit monitoring system and method based on machine vision |
| CN107191087A (en) * | 2017-05-19 | 2017-09-22 | 西南科技大学 | A kind of train door anti-pinch algorithm based on LSTM |
| CN108891424A (en) * | 2018-07-18 | 2018-11-27 | 王玲 | A kind of safety insulating device for rail transit train |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141203 Termination date: 20170714 |
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| CF01 | Termination of patent right due to non-payment of annual fee |