JPH0528192U - Train space video transmission device - Google Patents

Abstract

(57) [Summary] [Purpose] When a train enters a station, the door stops, the door opens and ends, the door is closed, the door is closed, and the safety confirmation until leaving the station can be confirmed and the train operation is stalled instead of being on time. When there is a train, the train at the back can be prevented from colliding with the train at the front and the crossing can be monitored. [Structure] This device uses a space light transmitter installed at the rear of the train and space light transmitters installed at two locations, tens of meters and hundreds of meters behind the station, of the video signals of the station captured by the ITV camera The image is transmitted to the driver's seat and displayed on the TV monitor. In addition, it is approximately 50 between the railroad crossing and a station several kilometers away.
An ITV camera will be installed on the track side every 0 m toward the direction of the train, and a spatial light transmitter will be installed on the side of the track about 800 m behind the ITV camera. In this way, I
It is equipped with a TV camera and a spatial light transmitter. [Effect] It is possible to check the safety from the train entering the station to opening and closing the door and leaving the station, which is effective for one-man operation. It also has the effect of safety at level crossings and prevention of rear-end collisions when trains are stagnant.

Description

[Detailed description of the device]

[0001]

[Industrial application]

 This invention relates to the safe operation of trains and trains that run on railways using optical space transmission.

[0002]

[Prior Art]

 FIG. 4 is a block diagram showing a conventional train space image transmission device for safe operation of a train. In the figure, 1 is a station where a train stops and gets on and off, 2 is an ITV camera showing the vicinity of a train door, and 3a is this A first transmitter for transmitting the video signal of the ITV camera 2 to the spatial light transmitter, 4a is a signal cable for transmitting the video signal of the first transmitter 3 to the spatial light transmitter, 5 is a line through which a train passes, and 6 Is a train, 7a is a spatial light transmitter that radiates the video signal captured by the ITV camera 2 transmitted from the first transmitter 3 into space, 8a is a light beam emitted from this space transmitter 7a, Is a spatial light receiver installed at the rear of the train 6 for receiving the light beam 8a of the spatial light transmitter 7a and converting it into an electric image signal. Reference numeral 10 is a vehicle for transmitting the image signal of the spatial light receiver 9 to the driver's seat of the leading vehicle. Upper transmitter, 11 is this on-board transmitter 10 On-board signaling cable for transmitting a video signal to the TV monitor, 12 a TV monitor view the picture signal near passenger door, 13 is a progressive lateral Koya vision marks the traveling direction of the train.

Next, the operation will be described. The purpose is to confirm the safety until train 6 arrives at station 1, the door opens and passengers descend, and then the passenger closes the door and the tail of train 6 leaves station 1. In order to realize this, the ITV camera 2 captures the vicinity of all doors where the train 6 gets on and off and converts it into a video signal. The first transmitter 3a transmits the video signal of the ITV camera 2 to the spatial light transmitter 7a through the first signal cable 4a. The space light transmitter 7a emits a video signal to the space light receiver 9 installed at the rear of the train, which is installed beside the track several tens of meters behind the station in the traveling direction arrow 13 with respect to the station 1 of the train 6. The optical signal is converted into an electric image signal by the spatial light receiver and is displayed on the TV monitor 12 in the driver's seat through the on-vehicle transmitter 10 and the on-vehicle signal cable 11. As described above, the image of the vicinity of the door captured by the ITV camera 2 is displayed on the TV monitor 12 in the driver's seat, so the driver can confirm the open / closed state of the door, and the one-man operation can be performed without the conductor. It will be possible.

[0004]

[Problems to be solved by the device]

 Since the conventional train space image transmission device is configured as described above, when the train enters the station, it cannot transmit because the light beam of the space transmitter is outside the field of view of the space light receiver. If a light transmitter is installed several hundred meters behind the station, the light will reach when the train approaches, but since the distance will increase after the train arrives at the station, the spatial light will be greatly attenuated and the space receiver cannot receive it. There was a problem such as.

The present invention has been made to solve the above problems, and when the train can be checked for safety when entering a station, and if the train is not operating on time and is stalled, The purpose is to prevent a rear train from colliding with a front train and to obtain a device that can confirm the safety of railroad crossings.

[0006]

[Means for Solving the Problems]

 In the train space image transmission device according to the present invention, the first and second space light transmitters are installed by the side of the track at the two stations, each of which is several tens of meters and several hundreds meters behind the station, of the image signal of the station captured by the ITV camera. At the same time, it receives the light from the spatial light receiver installed at the rear of the train and sends a signal to the driver's seat. An image is displayed by an on-vehicle transmitter and a TV monitor.

In addition, an ITV camera is installed at the railroad crossing every 500 m between stations that are several kilometers away, and an ITV camera is installed at the railroad crossing. Further, an ITV camera is located about 800 m behind the ITV camera. Install a space transmitter. In this way, several TTV cameras and space transmitters are installed between stations.

[0008]

[Action]

 The train space image transmission device according to the present invention transmits the image signal of the station captured by the ITV to the second space light transmitter several hundred meters away from the rear of the station and emits the light to the space light receiver installed at the rear of the train. To be done. The light received by this spatial light receiver becomes an electric image signal and is sent to the TV monitor in the driver's seat of the leading vehicle of the train, so that the driver can confirm the safety of the approach road of the station, and if it is dangerous, enter the station. It is possible to stop before starting.

Then, the train stops at the station, the door opens and the passengers get on and off and the door closes. Until the train leaves the station, the video signal from the first space transmitter several tens of meters behind the station causes You can check the safety. In addition, the train space image transmission device of the present invention captures the train operation position with the ITV camera about every 500 m between the railroad crossing and the station several km away, and outputs the light from the space transmitter located about 800 m behind the ITV camera. Since it emits a signal, it is possible for subsequent trains to confirm the position of the front train, which also helps prevent rear-end collisions.

[0010]

【Example】

 Example 1. An embodiment of the present invention will be described below with reference to the drawings. In FIG. 1, 3b is a first transmitter for transmitting a video signal of the ITV camera 2 to the first and second spatial light transmitters via a branching device, 4 is a signal cable, and 4a is a first transmitter 3b. The branching device, 4b connects the branching device and the first spatial light transmitter 7a, 4c connects the branching device and the second spatial light sending device, 7b is transmitted from the first transmitting device 3b and is divided by the branching device It is the second spatial light transmitter that emits video signals to the space, and is installed by the side of the track several hundred meters behind the station. The first spatial light transmitter 7a is installed at the side of the track several tens of meters behind the station. Reference numeral 8b is a light beam emitted from the second spatial light transmitter 7b, and 14 is a branching device for dividing the video signal from the first transmitter 3b into two.

A second space light transmitter 7b is installed at a position several hundred meters behind the station where the train can be stopped suddenly when entering the station. The state of the station on the train entry side is captured by the ITV camera 2 and becomes an image signal which is transmitted to the second spatial light transmitter 7b through the first transmitter, the signal cable 4a, the branching device 14 and the signal cable 4c. It The video signal is received by the space light receiver 9 installed at the rear of the train through the light beam 8b in the space and converted into an electric video signal. This electric image signal is displayed on the TV monitor 12 in the driver's seat through the on-board transmitter 10 and the on-board signal cable 11, so that the driver can confirm the safety of the approach path of the train, and if there is a danger, before entering the station. The brake can be applied to the vehicle and stopped, enabling safe driving.

[0012] Also, after arriving at the station and stopping, the door is opened and passengers are getting on and off and the door is closed until the train leaves the station. The video signal from the first spatial light transmitter 7a is tens of meters behind the station. You can check the safety by. In this way, safety confirmation from entering the station to opening and closing the door and leaving the station is possible, and one-man operation is possible.

Example 2. In FIG. 2, 1a and 1b are stations several kilometers apart, and 2a, 2b and 2c are stations installed several 500 meters apart, and are set up at intervals of about 500m facing the direction of the train. The N1 to N3 ITV cameras, 3c and 3d and 3e respectively transmit the video signals of the N1 to N3 ITV cameras, and the N1 to N3 transmitters, 4d and 4e and 4f respectively. N1 to N3 signal cables for transmitting the video signal to the spatial light transmitter, 6a and 6b and 6c are N1 to N3 trains, and 7c and 7d and 7e are the N1 to N3 ITV cameras 2a. 2b and 2c are installed on the side of the line about 800m behind each of them, and the N1 to N3 spatial light transmitters 8c, 8d and 8e, which emit the video signal, are the N1 to N3 spatial light transmitters 7c. And light beams emitted from 7d and 7e , 9a and 9b and 9c are installed at the rear of the N1 to N3 trains and receive the light beams from the N1 to N3 spatial light receivers 10a, 10b and 10c, which are the spatial light receivers 9a, 9b and 9c. N1 to N3 on-board transmitters for transmitting the video signal of No. 1 to the leading vehicle, and 12a, 12b and 12c are N1 to N3 TV monitors for monitoring the video signal. The position of the N1th train 6a is projected by the N1st ITV camera 2a, and the position of the N1th train 6a is the N1th transmitter to the N1th spatial light transmitter 7c about 800m away from the N1th signal cable 4b. Be transmitted through. A light beam 8c of a video signal indicating the position of the N1th train 6a emitted from the N1th space light transmitter 7c is received by a second space light receiver 9b at the rear of the N2th train 6b. The video signal is projected on the N2th TV monitor 12b in the driver's seat of the leading vehicle through the N2th vehicle transmitter 10b. When the N1 train 6a is displayed on the TV monitor 12b, the driver has an inter-vehicle distance of 600 to 700 m and is at a distance that can be braked and stopped. You can

In FIG. 3, reference numeral 15 is a railroad crossing. The landscape of the railroad crossing taken by the ITV camera 2 is transmitted as a video signal by the transmitter 3 to the spatial light transmitter 7 about 800 m away. The image signal is radiated from the space light transmitter 7, received by the space light receiver 9 at the rear of the train, and further displayed on the TV monitor 12 in the driver's seat of the leading vehicle through the on-board transmitter 10. When the dangerous state of a railroad crossing is displayed on the TV monitor 12, the driver can stop by applying a brake because the distance from the railroad crossing is 600 to 700 m. In this way, the driver can confirm the safety of the railroad crossing.

[0015]

[Effect of the device]

 As described above, according to the present invention, since the spatial light transmitter is installed at a position several hundred meters behind the station, the driver can confirm the safety of the approach road on the TV monitor before entering the station. In case of, you can stop in front of the station. The ITV camera is installed every 500m between the railroad crossing and the station to monitor the position of the railroad crossing and the train, and a spatial light transmitter is installed about 800m behind the ITV camera to emit optical signals, so the railroad crossing is safe. It is possible to pass the car to the front and the following train can confirm the position of the front train. After confirming the front train, the brakes are applied and the distance is set so that the train can stop.

[Brief description of drawings]

FIG. 1 is a block diagram showing a train space image transmission device according to an embodiment of the present invention.

FIG. 2 is a block diagram showing a train space image transmission device according to another embodiment of the present invention.

FIG. 3 is a block diagram showing a train space image transmission device according to another embodiment of the present invention.

FIG. 4 is a block diagram showing a conventional train space image transmission device.

[Explanation of symbols]

 1 station 2 ITV camera 3 transmitter 4 signal cable 5 track 6 train 7 spatial light transmitter 8 light beam 9 spatial light receiver 10 onboard transmitter 11 onboard signal cable 12 TV monitor 13 traveling direction arrow 14 turnout 15 crossing

Claims (3)

[Scope of utility model registration request] 1. An ITV showing a platform where a train at a station enters
The first for transmitting the video signal of the camera and this ITV camera
Dozens of meters behind the station in the direction of the train station and the train station
And a first and a second spatial light transmitter which are installed on the side of a track of several hundred meters to emit the image signal of the first transmitter, and a light which is installed at the rear of the train and receives the light from the spatial light transmitter. , A spatial light receiver for converting into an electric video signal, an on-vehicle transmitter for transmitting the video signal of the spatial light receiver to the driver's seat of the leading vehicle, and a TV monitor for monitoring the video signal of the on-vehicle transmitter. A train space image transmission device characterized by the above. 2. The NV to Nm ITV cameras installed facing the traveling direction of the train by the side of the railroad track every 500 m between stations with a distance of several Km, and the video signal of this ITV camera is transmitted. The N1th to Nmth transmitters and the N1th N1th transmitter, which is installed on the side of the railroad about 800m behind the ITV camera in the traveling direction with respect to the ITV camera of the train, radiates the video signals of the N1th to Nmth transmitters. To Nm spatial light transmitters and N1 to Nm spatial light receivers which are installed at the rear of the train and receive light from any of the N1 to Nm spatial light transmitters and convert it into an electric video signal. N1 to Nm on-board transmitters for transmitting the image signals of the optical receiver and this spatial light receiver to the driver's seat of the leading vehicle, and TVs N1 to Nm for monitoring the image signals of this on-board transmitter. A battery characterized by having a monitor Space video transmission equipment. 3. An ITV camera for showing a crossing landscape and this I
A transmitter for transmitting a video signal of a TV camera, a spatial light transmitter installed at the side of a line about 800 m behind the ITV camera for emitting a video signal of the transmitter, and a light for the spatial light transmitter installed at the rear of the train. A spatial light receiver that receives the light and converts it into an electric video signal, an on-board transmitter that sends the video signal of this spatial light receiver to the driver's seat of the leading vehicle, and a TV monitor that monitors the video signal of this on-board transmitter. A train space image transmission device characterized by being provided.