WO2016032119A1

WO2016032119A1 - Safe operation system for tram

Info

Publication number: WO2016032119A1
Application number: PCT/KR2015/007140
Authority: WO
Inventors: 명묘희; 정미경; 최미선; 이종환
Original assignee: 도로교통공단
Priority date: 2014-08-29
Filing date: 2015-07-09
Publication date: 2016-03-03
Also published as: KR20160027459A

Abstract

The present invention relates to a safe operation system for a tram, and more specifically, to a safe operation system which operates a tram by combining images captured by cameras installed at the front and the side of the tram with vehicle operation information. The present invention relates to the safe operation system for a non-catenary tram, wherein a front camera saves information obtained by capturing images at a far distance by narrowing the view angle by means of proportionately operating a zooming function, when the speed of the vehicle is increased, and saves information obtained by capturing images at a near distance by widening the view angle by means of proportionately operating the zooming function, when the speed of the vehicle is decreased, and wherein a side camera monitors an object suddenly approaching the vehicle by means of a digital fence, which is operated when doors are closed when the vehicle starts after stopping, and provides same through an image device to a driver for visual confirmation, thereby allowing safe operation of the tram.

Description

Safety Operation System for Tram

The present invention relates to a safety operation system for a tram, and more particularly, in a safety operation system for operating a tram by combining images taken from cameras installed at the front and side of the tram with driving information of a vehicle. When the speed increases, the zoom is operated in proportion to the distance to narrow the angle of view to store the recorded information.When the speed decreases, the zoom is operated in proportion to the speed to save the recorded information by the near and wide angles of view. When the camera is closed after the vehicle stops, the digital fence is activated so that the camera suddenly monitors an object approaching the vehicle and provides it to the driver through the video device for visual confirmation so that the tram can run safely. It relates to a safety operation system for trams.

In general, as technology advances, various types of transportation have been developed and provided.

Such ordinary transportation uses fossil fuel as an energy source, and the fossil fuel not only adversely affects the environment, such as exhaust gas or heat generation, but also replaces it as it is gradually exhausted. A lot of effort is being made to develop the technology.

In addition, as fossil fuels are decreasing, oil prices have risen sharply, and in recent years, more and more people are using public transportation, and interest in safer and more efficient public transportation, namely eco-friendly public transportation without emissions. Is rising.

One of the technologies related to such eco-friendly public transportation means has recently been actively researched on a wireless traffic system, there are a variety of technologies related to this, there are patent documents 1 to 3 examples.

Patent document 1 is a battery car that is connected between a plurality of low-rise vehicles and a low-rise vehicle that is a passenger boarding to supply power for driving the low-rise vehicle, and a buried type installed on the ground to run the low-rise vehicle and the battery car It is configured to include a track portion, the buried track portion is free of charge, including an installation groove formed downward from the ground, the rail is inserted into the installation groove, and the resin part is filled in the space between the installation groove and the rail It's a line low tram system,

Patent Document 2 relates to a method for managing a battery constituting a tram system configured as Patent Document 1, and regenerates by managing the charging state of the battery by classifying the unwired section and the wired section according to the degree of charge state of the battery Energy can be fully recovered, but the state of charge of the battery is managed by dividing into five areas: Critical High Zone, High Zone, Normal Zone, Low Zone, and Critical Low Zone, and the boundary between Critical High Zone and High Zone. Set the portion to the maximum state of charge, set the boundary between the low and critical low regions to the lowest state of charge, estimate the regenerative energy absorption estimate according to the operation of the low-floor tram, and subtract the regenerative energy absorption estimate from the maximum state of charge. To set the target charge state,

Patent document 3 is installed in a tram vehicle, the vehicle data control unit (TDCU.Tram Data Control Unit) for receiving the tram vehicle control data from the outside and transmitting the received tram vehicle control data to the outside, and the tram received from the TDCU A tram control management system (TCMS) for controlling the driving state of the tram vehicle based on the vehicle control data and transmitting the driving information generated during the tram vehicle's operation to the TDCU for transmission by the TDCU to the outside; Precision satellite positioning system (DGPS, Differential GPS) for precisely measuring and transmitting the position of tram vehicles; A plurality of UTIS roadside apparatuses installed at a plurality of positions along a rail to transmit and receive data to and from the TDCU in a wireless manner; A UTIS control system of a Urban Traffic Information System (UTIS), which is connected to a plurality of UTIS roadside devices and controls traffic information including traffic lights and crosswalks on a road on which a tram vehicle operates; A plurality of tram fireside devices respectively installed at a plurality of positions along a rail to transmit and receive data with the TDCU in a wireless manner; And a tram vehicle control data of the tram vehicle based on the tram vehicle position information received from the DGPS, the road traffic information received from the UTIS control system, and the driving data received from the TDCU. It relates to a tram control system associated with a city traffic information system including a tram control system for generating a.

There is a conventional tram system and a system for controlling or managing the same, but there is no technology related to a safety driving system that can prevent a driving accident that may occur when operating the tram.

In other words, the wireless low-floor tram is composed by connecting a plurality of low-rise vehicles, and the total length is about 32M ~ 40M (varies depending on the configuration of the vehicle), and each low-rise vehicle has at least five doors. do.

If one driver monitors the tram configured in this way, there is a risk of a safety accident because a sufficient monitoring cannot be carried out and the vehicle can be operated with a part of the passenger's body or the passenger's belongings stuck in the door.

In addition, since the tram has a long stop and a long stopping distance, the traffic of subsequent vehicles also stops due to the characteristics of the lanes and the tram when colliding with the tram, which may cause traffic confusion in the city. There is.

[Preceding technical literature]

[Patent Documents]

(Patent Document 1) 1. Republic of Korea Patent Registration No. 1266914

(Patent Document 2) 2. Korean Patent Registration No. 1261843

(Patent Document 3) 3. Republic of Korea Patent Registration No. 1242036

The present invention has been developed to solve the problems of the prior art as described above, by installing a plurality of cameras on the front, rear, left and right of the tram to monitor the passengers entering and exiting the doorway to enable the driver to check the safety status of the passengers In addition, it is an object of the present invention to provide a safe operation system for trams that enable the driver to check the situation in front of the acceleration or deceleration on the screen to ensure safe driving.

More specifically, the present invention provides a safe driving system in which a tram is operated by combining images taken from cameras installed at the front and side of a tram with driving information of a vehicle, and the front camera zooms in proportion to the speed of the vehicle. Save the information by narrowing the angle of view over a long distance by operating it, and zooming in proportion to the speed when the speed decreases to store the information by widening the field of view and widening the angle of view. When this is closed, the digital fence is operated to provide a safe operation system for the tram that enables the tram to be safely operated by monitoring the object approaching the vehicle suddenly and providing it to the driver through the image device for visual confirmation. do.

Safety operation system for a tram according to the present invention for achieving this object comprises a plurality of cameras installed on the front and side of the tram; An ultrasonic sensor installed at the front of the vehicle to detect a structure that the driver cannot see with the naked eye; A contact sensor installed at the door to detect whether the door is completely closed; A display for displaying the image photographed by the cameras and the operation information of the tram; And the front camera installed in front of the tram of the camera to shoot in front of the camera, but when the speed of the vehicle increases, the zoom is operated in proportion to the camera to store the photographed information by narrowing the angle of view for a long distance, and in proportion to the speed when the speed decreases. Zooming in to enlarge the near and wide angles of view to store the captured information, and the side camera installed on the side of the tram is a digital fence that operates when the vehicle's door is closed after departure and monitors and displays an object approaching the vehicle suddenly. It is characterized by including an integrated management server that can be provided to the driver through the visual confirmation.

The integrated management server manages the signals input from the camera, the ultrasonic sensor, the contact sensor, and the main controller for controlling their driving; Communication module for communication with an external remote control means; An input / output controller for receiving a signal input from a contact sensor and controlling a signal input by an external input means; It may include a converter for converting the digital signal input from the ultrasonic sensor.

The main controller may be separated into an analysis controller for analyzing a signal input from a camera, an ultrasonic sensor, a contact sensor, and a controller for controlling the tram operation.

Side camera of the camera has a digital fence (Digital Fence) function, the integrated management server may be connected to the train integrated management device through an Ethernet converter.

The safety operation system for a tram according to the present invention has an effect of allowing the driver to more accurately grasp the situation of the tram traveling direction by zooming in or out the front camera according to the tram speed.

In addition, the present invention provides a digital pan function to the side camera to more accurately grasp the state of the passenger entering and exiting the door to prevent the passenger's body part or the passenger's belongings to the door, as well as access to the vehicle inadvertently By detecting objects or passengers, it is possible to operate the tram more safely by controlling the operation of the door or the operation of the tram.

In addition, the present invention is equipped with an ultrasonic sensor in front of the driver can monitor blind spots that can not be identified with the naked eye can prevent the trouble caused to the tram by the unintended structure.

In addition, the screen displayed on the display is displayed by dividing the display into driving and stopping, so that the driver can grasp the tram situation more conveniently and operate the tram more stably.

1 is a block diagram of an integrated management server constituting the safety operation system for trams according to the present invention

Figure 2 is an example of the screen when the digital pan in the tram safety operation system according to the present invention

3 is an example of a screen when the tram is running in the tram safety operation system according to the present invention

Figure 4 is a flow chart for explaining the operation of the tram with a tram safety operation system according to the present invention

Hereinafter, a tram safety operation system according to the present invention will be described in detail with reference to the accompanying drawings.

As the invention allows for various changes and numerous embodiments, particular embodiments will be illustrated in the drawings and described in detail in the written description. However, this is not intended to limit the present invention to specific embodiments, it should be understood to include all changes, equivalents, and substitutes included in the spirit and scope of the present invention.

In describing the drawings, similar reference numerals are used for similar elements. In the following description of the present invention, if it is determined that the detailed description of the related known technology may obscure the gist of the present invention, the detailed description thereof will be omitted.

The present invention can provide the situation information to the driver to operate the tram more safely.

The safe driving system for a ram according to the present invention, as shown in FIG. 1, controls a plurality of cameras 10, a camera, and analyzes images captured by the cameras to inform the driver in real time through the display 40. It includes an integrated management server (50).

As shown in FIG. 1, the camera 10 includes a front camera installed at the front of the tram, a side camera installed at the side, and a cabin camera installed at the cabin, and the side camera is installed at each low-rise vehicle constituting the tram. It is preferable.

That is, the side cameras of the cameras are installed on the left and right sides of each low-rise vehicle, and not only photograph the state in which the door of the vehicle is opened and closed when starting after stopping, but also photographing the passengers entering and exiting the door. It is a means of photographing whether a person's body or passenger's belongings are caught in the door.

The side camera has a digital pan function, and when the door is closed, the digital fence is activated to detect an object approaching the vehicle suddenly and provide it to the driver through the display 40 provided in the cab so that the driver can check in real time. .

The digital fence provided in the side camera is automatically stopped when the vehicle reaches a certain speed, the normal driving image is displayed on the display, and the captured image is stored.

The front camera provides the driver with a more accurate situation of the direction in which the vehicle proceeds so that the driver can drive the vehicle more safely, and provides a data image for analyzing the situation at the time of the accident when the accident occurs. For the camera.

The front camera is equipped with a zoom function so that the photographing area can be changed according to the speed of the vehicle. In other words, when the speed of the vehicle increases, the zoom is operated in proportion to it to narrow the angle of view so that the captured information is transmitted to the display for display and stored in the memory.When the speed decreases, the zoom is operated in proportion to the speed to widen the angle of view. Display and save the photographed information.

The front camera is preferably equipped with its own memory card so that even if the power supply is cut off due to a problem of the vehicle itself, it is possible to store the captured image using the power supply 50b provided in the integrated management server itself.

The integrated management server 50 is provided as a means for controlling the driving of the camera and processing the image captured by the camera. The integrated management server 50 includes a control program for controlling the driving of the camera, and photographing. And a memory for storing the associated association.

In addition, the tram safety operation system according to the present invention is further provided with an ultrasonic sensor 20 so that the driver can detect the danger of blind spots that can not be seen with the naked eye.

The ultrasonic sensor 20 is a sensor capable of sending ultrasonic waves to a target and receiving reflected ultrasonic waves to detect a distance and a direction of the target to detect a direction in which the vehicle proceeds or structures adjacent to the vehicle and notify the driver of an injustice. Do not disturb the vehicle operation.

In addition, the door of the tram equipped with a safety operation system of the present invention is further provided with a contact sensor 30 for detecting whether the door is completely closed to detect the state that the door or the body of the passengers between the door is not closed enough To control the operation. In other words, the passenger's body or belongings are jammed in the door so that the vehicle cannot be operated when the door is not closed sufficiently to ensure the safety of the passenger.

The integrated management server 50 is a means for controlling and managing all the components necessary for the safe operation of the vehicle, including the camera and the sensor as described above, and manages the signals input from the camera, the ultrasonic sensor, the contact sensor A main controller 50c for controlling their driving; A communication module 50m for communicating with an external remote control means 70; An input / output controller 50i for receiving a signal input from a contact sensor and controlling a signal input by an external input means; And a converter 50d for converting the digital signal input from the ultrasonic sensor.

As described above, the main controller 50c may be configured as a means for controlling and analyzing the driving of each component constituting the safety operation system. However, when the analysis and control pass and the accident occurs, the analysis is performed. It may be difficult, so it is preferable to separate the konjac and analytical. That is, as shown in FIG. 1, the main controller 50c includes an analysis controller for analyzing signals input from a camera, an ultrasonic sensor, and a contact sensor, and a control controller for controlling the tram operation, and an L2 switch ( 50s) to automatically connect to either of the two controllers depending on the state.

In addition, since the tram provided with the safe driving system according to the present invention may overlap with other railroad vehicle lines or cause interference with each other, it is preferable to operate in conjunction with the railroad vehicle driving system. The tram safety operation system of the present invention compared to the integrated management server 50 is preferably connected to the train comprehensive management device 60 through the Ethernet converter (50e).

There are a variety of train management devices, but in Korea, there is a TCMS (Train Control Management System) that comprehensively manages trains developed by the parent company. And train information management system to monitor.

[Description of the code]

10: camera

20: ultrasonic sensor

30: contact sensor

40: display

41: digital pan

41m: surveillance zone

42: sensor information display

50: integrated management server

50b: power supply

50c: main controller

50d: converter

50e: Ethernet converter

50i: I / O controller

50m: communication module

50s: L2 switch

60: train management system

70: external control means

Claims

A plurality of cameras 10 installed on the front and side of the tram;

An ultrasonic sensor 20 installed at the front of the vehicle to detect a structure that the driver cannot see with the naked eye;

A contact sensor 30 installed in the door to detect whether the door is completely closed;

A display 40 for displaying the image captured by the cameras and the operation information of the tram; And

Among the cameras, the front camera installed in front of the tram is photographed in front of the camera, but when the speed of the vehicle increases, the zoom is operated in proportion to it to store the photographed information by narrowing the angle of view over a long distance, and zooming in proportion to the speed when the speed decreases. The camera is located on the side of the tram, and the side camera installed on the side of the tram closes the door of the vehicle when the vehicle is closed. Safety operation system for a tram, comprising an integrated management server 50 to be provided to the driver to visually check.
The method of claim 1,

The integrated management server 50

A main controller (50c) for managing signals input from the camera, the ultrasonic sensor, and the contact sensor and controlling their driving;

A communication module 50m for communicating with an external remote control means 70;

An input / output controller 50i for receiving a signal input from a contact sensor and controlling a signal input by an external input means;

Safety operation system for a tram comprising a converter (50d) for converting the digital signal input from the ultrasonic sensor.
The method of claim 2,

The main controller 50c is composed of an analysis controller for analyzing signals input from a camera, an ultrasonic sensor, and a contact sensor, and a control controller for controlling the tram's operation. Safety operation system for a tram, characterized in that connected to any one of the two controllers.
The method of claim 1,

The side camera of the camera is a tram safety operation system, characterized in that it has a digital fence (Digital Fence) function.
The method of claim 1,

Integrated management server 50 is a tram safety operation system, characterized in that connected to the train comprehensive management device 60 through the Ethernet converter (50e).