Metro screen door limited area intelligent anti-pinch detection alarm device and method
A technology for alarm devices and screen doors, applied in measuring devices, alarms, radio wave measurement systems, etc., can solve problems such as baffle plate intrusion, hidden dangers of train safety operation, etc., reduce maintenance, reduce detection hardware equipment, and improve system The effect of stability
Inactive Publication Date: 2018-05-29
徐薇
View PDF7 Cites 9 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
The method of installing an anti-pinch baffle can only detect the detection of the bottom space of the restricted area. It is impossible to detect the situation of the backpack belt that is higher than the height of the baffle, and the baffle will cause a certain amount of intrusion. The safe operation of the hidden dangers
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment 1
[0066] Such as figure 1 As shown, fix the laser 11, install the collimating lens 12, adjust the focus position of the collimating lens 12, make the laser 11 fall on the focal point of the main optical axis of the collimating lens 12, and detect that the light spot passing through the collimating lens 12 is a point-like spot , the linear optical generator 13 is installed, and the position of the linear optical generator 13 is adjusted so that the point-shaped light spot emitted through the collimating lens 12 falls on the center position of the linear optical generator 13 .
[0067] The optical imaging device 23 is installed and fixed, the narrow band filter 22 is installed in front of the optical imaging device 23, the imaging lens 21 is installed, the focus position of the imaging lens 21 is adjusted, so that the optical imaging device 23 can form a clear image within the detection distance, adjust The laser emission module 1 and the imaging detection module 2 are angled so t...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention provides a metro screen door limited area intelligent anti-pinch detection alarm device which is provided with a laser emission module, an imaging detection module and an analysis processor. Machine vision is used to realize the detection of a limited area, and the system stability is improved without mechanical rotating parts. The limited area is calibrated before a train is stoppedand a door is opened in each time, a preset distance is updated, distance shift influence caused by distance shift caused by vibration in the running of the train is automatically corrected, and theprecision is high. A narrow-band filter is used to filter the effect of background light, the stray light of passengers and baggage in a compartment is automatically excluded from an alarm area, and afalse alarm rate is low. The device has the advantages of a simple structure and a low price, an algorithm is used to complete detection alarm, the artificial maintenance and detection of hardware equipment are reduced, the detection precision is high, the false alarm rate is low, the detection alarm can be achieved for an extremely small obstacle target, and the device can be used for linear platforms and crescent-shaped platforms.
Description
technical field [0001] The invention relates to the technical field of subway safety, in particular to an intelligent anti-pinch detection and alarm device and method for a boundary area of a subway screen door. Background technique [0002] The subway screen door is a high-tech product integrating construction, machinery, materials, electronics and information, and is used on subway platforms. The screen door separates the platform from the train running area, and is controlled by the control system to open automatically, mainly to ensure the safety of the train and passengers entering and leaving the station. The slit between the subway screen door and the train door is called the restricted area, which is necessary to ensure the safe operation of the subway train. Once people and objects are trapped in the boundary area between the screen door and the train door, if the train runs at this time, a major safety accident will be caused. The method of pinching people. ...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Applications(China)
IPC IPC(8): G01S17/93G01S17/08G05B19/048G08B21/02
CPCG01S17/08G01S17/93G05B19/048G08B21/02
Inventor 徐薇
Owner 徐薇