KR101981211B1 - Precision-stopping measurement system - Google Patents

Abstract

More particularly, the present invention relates to a system and method for accurately measuring the position of a train, including a stripe pattern formed at a side specified position of a train and having a plurality of longitudinal stripes arranged at regular intervals, A sensing means for sensing the streak pattern formed on the side of the train and for detecting the stop position data in accordance with the counting of the vertical stripes and the sensing means for being connected to the sensing means by the wireless communication network, A precise stop position of the train corresponding to the number of vertical stripes (in centimeters [cm] or millimeters [mm]) through a stripe pattern formed on the side of the train, including a database collecting one stop position and velocity data via a communication network Data can be acquired, and the obtained stop position data can be used to automatically operate the train, An automatic train control (ATT), an automatic train control (ATC), an automatic train control (ATC), an automatic train control (ATC) The present invention provides a system for measuring the position of a train, which can easily manufacture a striped pattern serving as a measurement reference and has a small volume of sensing means for sensing the striped pattern, thereby facilitating installation and portability.

Description

[0001] Precision-stopping measurement system [0002]

More particularly, the present invention relates to a system for measuring whether a train has stopped at a predetermined position, more particularly, a longitudinal stripe is formed at regular intervals on a side surface of a train to form a stripe pattern constituting a pattern, A scan module for detecting a pattern is installed, and when the train stops on the platform, the scan module senses the stripe pattern and detects whether or not the train stopped on the platform has stopped at a predetermined position. will be.

In general, trains are mass transportation vehicles that require high level of safety and accuracy. They are used for automatic train stop (ATS), automatic train stop Many train control devices such as automatic train protection (ATT), automatic train operation (ATO) and automatic train control (ATC) have been developed and used, And continuous research and development are being carried out to improve the accuracy and operation efficiency and to provide a convenient operating environment.

The safety and accuracy of these trains are required throughout the entire journey from the departure to the stop of the train. Especially, the safety and accuracy of stopping the passenger on the platform where the passengers are getting on and off are more emphasized in terms of ride comfort and passenger protection. to be.

If precision stopping is not performed at the station due to inaccurate control of the operation of the train or the inactivity of the train operation control device, it may cause confusion in the platform, which may lower the operating efficiency and cause an accident. There is a problem in that the exchange of train operation information is not smooth.

As technology has developed and the number of passengers using trains has increased, a screen door system has been developed to ensure the safety of the passengers on the platform.

This screen door system is a very useful facility to improve passenger safety, air conditioning efficiency and air quality in the history by installing a fixed door and a movable door at the end of the platform to block the platform and the line portion.

However, such a screen door system completely intercepts the platform and the line portion with the screen door therebetween, so that a precise positional stoppage is required for the passengers to get on and off.

For this reason, Korean Patent Registration No. 10-0970429 (Jul. 2010) discloses an electric vehicle sensor module that senses an oncoming or stationary electric vehicle and provides a corresponding electric vehicle location information signal; An arithmetic unit for calculating a position information signal provided from the train sensor module; And a display unit for displaying position and distance information of a train, which is a result calculated through the operation unit, to a crew member, wherein the train sensor sensor module senses a moving vehicle that is moving or stopping, and provides a corresponding electric vehicle position information signal to the operation unit A stationary stop detection sensor unit; And a stop distance detection sensor unit for providing a traveling electric vehicle position information signal to the operation unit to display a stop distance of the electric vehicle, wherein the fixed position detection sensor unit is installed at an entry portion of the platform to determine entry of the electric vehicle, An entrance sensor for providing a train position information signal to the arithmetic unit when the body of the train is detected; A goodness-of-detection sensor installed on the side of the landing area between the first and second quantities of the coaches of the train, sensing the body of the moving train that is moving or stopping, and providing the corresponding train location information signal to the operation unit; And an underside sensor installed at a position separated by a certain distance from the position of the good feeling sensor and sensing the body of the traveling electric vehicle and providing the corresponding electric vehicle position information signal to the operation unit, Lt; / RTI >

However, there are many problems in detecting the exact stop position by the conventional method of accurately detecting the stop position by detecting the start and end of the train and detecting the size and the stop position of the train. There is a problem in that it can not stop at a collided stop position corresponding to the screen door.

In addition, since the number of detection means must be provided on the line, the registered patent 10-0756269 (August 31, 2007) and the registered patent 10-0756186 (August 30, 2007) There is a problem that it is inconvenient and costly. In addition, Japanese Laid-Open Patent Application No. 2012-66617 (Apr. 05, 2012) has installed a camera system in front of and behind a train in a train station to detect a stationary stop, but the camera system is sensitive to illumination and image processing has been inconvenient.

The present invention detects the proximity of a train by ultrasonic waves at a corresponding designated position of the platform, detects a stop position and a speed data according to a vertical stripe count of a vertical stripe pattern formed on a train, and the detected value is detected by an automatic train stop device (ATS) (ATP), automatic train operation unit (ATO), and automatic train control unit (ATC), so that the train can be stopped at the designated position, so that the vehicle can be safely decelerated and stopped It is an object of the present invention to provide a train stop position measurement system capable of protecting the safety of passengers, providing high quality service, and relieving the stress caused by deceleration and stop by the sense of the crew.

The present invention provides a railway stationary railway tracing system comprising: a train in which a plurality of longitudinal stripes are arranged at regular intervals on a side surface at regular intervals to form a pattern of stripe patterns; a base mounted on the platform; An ultrasonic sensor module provided in the upper housing for sensing ultrasonic waves from a train which stops on the platform; and a controller connected to the ultrasonic sensor module, the ultrasonic sensor module being connected to the side of the train in accordance with a signal applied from the ultrasonic sensor module. A scan module for sensing a formed stripe pattern; and a controller for controlling driving of the ultrasonic sensor module and the scan module, electrically connected to the ultrasonic sensor module and the scan module, for comparing the value detected by the scan module with a set value, A control module for calculating the values and converting the values into a stop position and a speed data, And a display unit for displaying the driving state of the ultrasonic sensor module, the scan module, the control module, and the communication module as an image. The communication module may include a communication module that is electrically connected to the control module and transmits the stop position and speed data calculated by the control module to a database. Detecting means for sensing the streak pattern formed on the side of the train and detecting the stop position and the speed data according to the counting of the vertical stripes; a control unit connected to the detecting means via the wireless communication network, And detects a stop position and speed data in accordance with the longitudinal strip count of the train, and the detected value is detected by an automatic train stop device (ATS), automatic train protection device (ATP), automatic train operation device (ATO), automatic train control device ATC), so that the train is stopped at the designated position.

delete

The scan module according to the present invention includes a laser controller which receives a signal of the ultrasonic sensor module and controls driving of the laser emitting unit, and a laser controller which irradiates the stripe pattern formed on the side of the train with a laser beam, A laser light receiving unit for receiving the laser light from the laser light emitting unit and for outputting and outputting the laser light; an amplifier for amplifying and outputting the signal output from the laser light receiving unit; And a low-pass filter for filtering and passing only signals below the frequency (frequency).

The laser light receiving unit according to the present invention includes a laser light filter for filtering and passing only a laser light having a predetermined wavelength among the light reflected from the stripe pattern and passing the laser light filtered by the laser light filter to the laser light receiving unit And a light-emitting diode.

The control module according to the present invention may further include a high threshold value setting unit for setting a high threshold value to be allowed to be detected in the stripe pattern, a first A value generating unit for changing the analog signal set by the high threshold value setting unit to a digital signal, A second A / D converter for converting the analog signal set by the low threshold value setting unit into a digital signal and outputting the digital signal; A comparator for comparing the data detected by the scan module with a value of a threshold range set by a high threshold value setting unit and a low threshold value setting unit to output a compared signal, and a comparator for counting signals output from the comparator, And a main controller for detecting a time according to the signal.

The present invention has the following effects.

The proximity of the train is detected by the ultrasonic wave at the designated position of the platform, and the stop position and the speed data according to the vertical stripe count of the vertical stripe pattern formed on the train are detected. The detected value is detected by the automatic train stopping device (ATS) (ATP), automatic train operation equipment (ATO), and automatic train control equipment (ATC), so that the train is stopped at the designated position, and the safety of passengers It is possible to provide a high-quality service, and it is possible to eliminate the stress caused by the deceleration and stopping by the sense of the crew.

delete

delete

delete

FIG. 1 is a view showing an example of a system for measuring the position of a train stop according to the present invention.
2 is an exemplary view showing the sensing means in the configuration of the present invention.
FIG. 3 is an exemplary view showing an operation state of a train stop position measurement system according to the present invention.
FIG. 4 is a block diagram illustrating a configuration of a system for measuring the position of an in-line train according to the present invention.
FIG. 5 is a block diagram illustrating a method for measuring a train in-line positional stop using the train in-line positional measurement system according to the present invention.
FIG. 6 is a diagram illustrating an example of a stepwise embodiment of the sensing means according to the present invention.
FIGS. 7A and 7B are views illustrating an example in which the measured position and velocity data measured according to the present invention are displayed on a screen. FIG.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. Prior to this, terms and words used in the present specification and claims should not be construed as limited to ordinary or dictionary terms, and the inventor should appropriately interpret the concepts of the terms appropriately The present invention should be construed in accordance with the meaning and concept consistent with the technical idea of the present invention.

Therefore, the embodiments described in the present specification and the configurations shown in the drawings are merely the most preferred embodiments of the present invention, and not all of the technical ideas of the present invention are described. Therefore, at the time of the present application, It should be understood that variations can be made.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 is a view showing an example of a system for measuring the position of a train in accordance with the present invention. FIG. 2 is an exemplary view showing a sensing means in the construction of the present invention. FIG. 4 is a block diagram illustrating a configuration of a system for measuring the position of an on-board train according to the present invention. FIG. 5 is a diagram illustrating an example of an on- 6A, 6B, 6C, 6D, 6D, 6D, 6D, 6D, 6D, 6D, 6D, 6D, 6D, 6D, 6D, 6D, Fig.

In the present invention, a vertical stripe pattern is formed at regular intervals on a side surface of a train to form a stripe pattern, and a platform on which a train stops is provided with a scan module for detecting the stripe pattern. When the train stops on the platform, The present invention relates to a train stop position measurement system for detecting whether or not a train stopping on a platform by sensing a striped pattern and stopping at a platform.

1 to 3, a plurality of longitudinal stripes are arranged at regular intervals on a side designated position of a train 10 to form a stripe pattern 100 forming a pattern do.

In this case, the stripe pattern 100 may be formed integrally with the vehicle body, or may be made of a separate pad and attached to the vehicle body, the stripe pattern 100 having vertical stripes having a color contrast difference with the background, .

The sensing means 200 is installed on the platform on which the train 10 stops and senses the stripe pattern 100 formed on the side surface of the train 10 so as to count the vertical stripe pattern, .

The sensing means 200 includes a base 210 installed on a platform and an upper housing 220 coupled to an upper portion of the base 210, do.

Through holes 211 are formed in the left and right sides of the base 210 so that when the sensing means 200 is installed on the platform, the bolts are inserted through the through holes.

At this time, the through hole 211 is formed as a long hole having a length, and the distance between the sensing means 200 and the train 10 can be adjusted by moving the sensing means 200 back and forth.

The upper housing 220 is provided with an ultrasonic sensor module 230 to sense the train 10 stopped on the platform by ultrasonic waves.

Here, the shape of the sensing means 200 shown in the drawing is shown by way of example, and the shape shown in the drawing is not limited.

The ultrasonic sensor included in the ultrasonic sensor module 230 may be exposed from the upper housing 220 to the outside (on the train side).

The upper housing 220 is provided with a scan module 240 connected to the ultrasonic sensor module 230 through a circuit so that the ultrasonic sensor module 230 can be mounted on the side of the train 10 according to a signal applied from the ultrasonic sensor module 230. [ And detects the formed stripe pattern 100.

4, the scan module 240 is connected to the ultrasonic sensor module 230 through a circuit, and receives a signal from the ultrasonic sensor module 230 And a laser controller 241 for controlling the driving of the laser emitting unit 242. The laser controller 241 is connected to the laser controller 241 by a circuit, And a laser emitting unit 242 for irradiating the stripe pattern 100 with a laser beam.

And a laser light receiving unit 243 for receiving the laser light reflected by the stripe pattern 100 and for outputting the laser light by signaling the laser light is provided at one side of the laser light emitting unit 242.

The laser light filter 244 constitutes a laser light filter 244 for filtering and passing only the laser light of the designated wavelength among the light reflected by the stripe pattern 100 and passing through the front of the laser light receiving part 243, A light collector 245 that concentrates the laser light filtered by the laser light filter 244 into the laser light receiving unit 243 may be further provided.

The scan module 240 includes an amplifier 246 connected to the laser light receiving unit 243 through a circuit and amplifies the signal output from the laser light receiving unit 243 into a signal of a designated band and outputs the amplified signal.

The amplifier 246 is connected to a low-pass filter 247 through a circuit. The low-pass filter 247 filters the signal amplified by the amplifier 246 and output signals of a predetermined range (frequency) .

The laser emitting unit 242 and the laser receiving unit 243 of the scan module 240 are also exposed to the outside (train side) from the upper housing 220. The laser emitting unit 242, And the laser light receiving unit 243 receives the laser light reflected from the stripe pattern 100. The laser light receiving unit 243 receives the laser light reflected from the stripe pattern 100, Based on this signal, the stop position data of the train can be obtained.

The ultrasonic sensor module 230 and the scan module 240 are connected to the control module 250 by a circuit so that the control module 250 controls the driving of the ultrasonic sensor module 230 and the scan module 240 And compares and counts the value detected by the scan module 240 with the set value, and calculates the value as the stop position data.

The control module 250 includes a high threshold value setting unit 251 for setting a high threshold value to be detected in the stripe pattern 100, D converter 252. The first A / D converter 252 converts the analog signal set by the high threshold value setting unit 251 into a digital signal and outputs the digital signal.

At this time, the output digital signal is output to the main controller 256.

And a low threshold value setting unit 253 for setting an allowable low threshold value to be detected in the stripe pattern 100. The low threshold value setting unit 253 is connected to the second A / D converter 254, And the second A / D converter 254 converts the analog signal set by the low threshold value setting unit 253 into a digital signal and outputs the digital signal.

At this time, the output digital signal is also output to the main controller 256.

The data detected by the scan module 240 and the value of the threshold range (between the allowable high threshold value and the allowable low threshold value) set by the high threshold value setting unit 251 and the low threshold value setting unit 253 And the comparator 255 compares the comparison value to the main controller 256. The comparator 255 compares the comparison value with the reference value.

The main controller 256 counts and calculates a signal output from the comparator 255, detects a time (measured time) according to the signal, and outputs the calculated position and speed data.

In addition, the control module 250 is electrically connected to the communication module 260 and transmits the stop position data calculated by the control module 250 to the database 300, and includes a display unit 270, The ultrasonic sensor module 230, the scan module 240, the control module 250, and the communication module 260 as images.

The database 300 is connected to the sensing unit 200 through a communication network, and collects and analyzes the stop position data detected by the sensing unit 200 through a communication network.

The database 300 typically includes a communication means for communicating with the communication module 260 through a computer in a wired or wireless manner and includes a program for analyzing the stop position and speed data detected by the sensing means 200 And a data storage unit and an output unit (printer) for storing the analyzed data.

An embodiment of the method for measuring the positional stability of a train according to the present invention will be described with reference to FIGS. 5 and 6. FIG.

First, a) step S100 sets a high threshold value and a low threshold value of the laser light to be detected in the stripe pattern.

At this time, the sensing means is provided with a mode switch to set a high threshold value and a low threshold value of the laser light collected through the laser light receiving portion.

Next, in step S110, a threshold value and a low threshold value of the laser light to be detected in step a) are set, and a threshold value of the laser light to be detected in step a) Detect the head.

At this time, the ultrasonic module of the sensing means activates, detects proximity of the train through the ultrasonic sensor, and outputs a signal to the laser emitting portion of the scan module based on the sensed result (signal).

Next, in step S120, if the head of the train is sensed by the ultrasonic module in step b), the scan module of the sensing unit senses a stripe pattern.

At this time, when the ultrasonic module recognizes that the ultrasonic module is near to a train stop position and outputs a resultant signal to the laser emitting portion of the scan module, the laser emitting portion of the scan module irradiates laser light, And collects the laser light reflected from the light source.

Next, in step S130, the laser light reflected from the stripe pattern is collected through the laser light receiving unit of the scan module in step c), and vertical stripes of the striped pattern are counted, And calculates the stop position and speed data by calculating and detecting the detected time.

At this time, the number of vertical stripes of the stripe pattern is counted through the laser light receiving portion of the scan module, time is measured based on the time when the vertical stripes are detected, and counts of vertical stripes and train Calculate the speed stop position data and check the stop of the train.

Next, e) step S140 transmits the stop position and speed data detected / calculated in step d) to the database through the communication module.

Next, f) step S150 stores the stop position and speed data provided by the e) step S140 in the database.

While the present invention has been described with reference to exemplary embodiments, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims.

Accordingly, the technical scope of the present invention should be determined by the technical idea of the appended claims.

10: train 100: striped pattern
200: sensing means 210: base
211: through hole 220: upper housing
230: ultrasonic sensor module 240: scan module
241: Laser controller 242: Laser emitting part
243: Laser light receiving section 244: Laser light filter
245: light collector 246: amplifier
247: Low-pass filter 250: Control module
251: High threshold value setting section 252: First A / D converter
253: Low threshold setting unit 254: Second A / D converter
255: comparator 256: main controller
260: Communication module 270:
300: Database

Claims (6)

A train in which a plurality of longitudinal stripes are arranged at regular intervals at side specified positions to form a pattern of stripe patterns;
A base installed in the platform;
An upper housing coupled to an upper portion of the base;
An ultrasonic sensor module provided in the upper housing and sensing a train stopped on the platform by ultrasonic waves;
A scan module electrically connected to the ultrasonic sensor module and sensing a stripe pattern formed on a side of the train according to a signal applied from the ultrasonic sensor module;
The ultrasonic sensor module and the scan module are electrically connected to each other to control the driving of the ultrasonic sensor module and the scan module. The scan module compares and counts the values detected by the scan module with the set values, A control module for speed data;
A communication module that is electrically connected to the control module and transmits the stop position and speed data calculated by the control module to a database;
And a display unit that displays driving states of the ultrasonic sensor module, the scan module, the control module, and the communication module as an image, detects the stripe pattern formed on the side of the train, detects the stop position and the speed data according to the counting of the vertical stripe, ;
And a database connected to the sensing unit via a wireless communication network and collecting the stationary position data detected by the sensing unit in a wireless communication network,
(ATS), Automatic Train Protection Device (ATP), and Automatic Train Stop Device (ATP). The detected position and speed data are detected according to the longitudinal strip count of the train. , The automatic train operation device (ATO), and the automatic train control device (ATC), so that the train is stopped at the designated position.
delete The method according to claim 1,
The scan module
A laser controller for receiving a signal from the ultrasonic sensor module and controlling driving of the laser emitting unit;
A laser emitting unit for emitting a laser beam to the striped pattern formed on a side surface of the train in accordance with a signal from the laser controller;
A laser light receiving unit for receiving laser light from the laser light emitting unit and outputting the laser light;
An amplifier for amplifying and outputting a signal output from the laser light receiving unit;
And a low-pass filter for filtering and passing only signals within a specified range (frequency) among the signals amplified and output by the amplifier.
The method of claim 3,
The laser light-
A laser light filter for filtering and passing only the laser light of the designated wavelength among the light reflected by the stripe pattern;
And a light collector for concentrating the laser light filtered by the laser light filter into the laser light receiving unit.
The method according to claim 1,
The control module
A high threshold value setting unit for setting an allowable high threshold value to be detected in the stripe pattern;
A first A / D converter for converting the analog signal set by the high threshold value setting unit into a digital signal and outputting the digital signal;
A low threshold value setting unit for setting an allowable low threshold value to be detected in the stripe pattern;
A second A / D converter for converting the analog signal set by the low threshold value setting unit into a digital signal and outputting the digital signal;
A comparator for comparing the data detected by the scan module with a value of a threshold range set by a high threshold value setting unit and a low threshold value setting unit to output a compared signal;
And a main controller that counts signals output from the comparator and detects a time according to the signals. delete

Images