JP4133260B2 - On-site vehicle monitoring device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a premises vehicle monitoring apparatus for preventing a railroad vehicle from proceeding on a premises of a vehicle base.
[0002]
[Prior art]
When exchanging trains at the base premises due to inspection, cleaning, and loading / unloading of railway vehicles, currently only relying on the signal display confirmation of the premises driver, it is difficult to avoid human errors such as signal ignorance and forgetfulness. Due to this, there was a problem in that the start (wrong departure, wrong approach to the turnout) occurred, and the vehicle and the track were damaged, or the operation of the main line of the vehicle was hindered.
[0003]
On the other hand, on the main line, an ATC device (automatic train control device) is known as one that performs automatic operation control of railway vehicles. This ATC device detects a vehicle traveling in each blocked section on the track by a vehicle detection device arranged along the track, and controls the operation of each vehicle in accordance with the presence status of the vehicle in each blocked section. is there. For the ATC signal display, two types of stop signals 01 and 02 are used. The stop signal 01 is a signal for instructing a stop by the service brake, and the stop signal 02 is a signal for instructing a stop by the emergency brake. For example, the blockage section behind the course adjacent to the blockage section where the preceding vehicle is located becomes the stop section of the stop signal 02, and the block section behind the course becomes the stop section of 01. For example, the blockage section further behind the stop section of the stop signal 01 is, for example, a display section where the travel speed is 40 km / h, and a blockage section further behind the stop section is a display section where the travel speed is 60 km / h. The operation of the vehicle is controlled (Patent Document 1).
[0004]
[Patent Document 1]
JP-A-08-040273 (second page, paragraph 0002)
[0005]
[Problems to be solved by the invention]
However, if the conventional ATC device described above is applied to the on-site operation control at each depot as in the case of the main line, the train detection is performed because the operation speed of each train is controlled based on the status of the train in each blocked section. It is necessary to install a signal line from a device, a signal output device to each train, and the like, and since the change flexibility is poor, a maintenance cost is required and it is not advantageous from the viewpoint of cost effectiveness.
[0006]
The present invention has been made in view of these points, and an object of the present invention is to provide a local vehicle monitoring apparatus that can support a local driver of a vehicle base with a simple configuration.
[0007]
[Means for Solving the Problems]
An on-premises vehicle monitoring apparatus according to the present invention is disposed in a stop area in front of a traffic signal arranged along a track in a vehicle base premises and is electromagnetically coupled to a vehicle located in the stop area, toward the traffic signal. A vehicle detector that detects the vehicle disposed in front of the stop area, a signal detector that optically detects the signal display of the traffic light from the outside, the vehicle detector, and the signal detector Based on the output of the vehicle, when the signal is detected to stop when the vehicle detector detects the vehicle, a monitoring control unit that outputs a stop output instruction signal, and a stop output instruction signal is output from the monitoring control unit If it is done, it has an output part which outputs a stop signal to the antenna, and a battery which supplies electric power to these parts.
[0008]
According to the present invention, an antenna disposed in a stop area in front of a traffic signal along a track in a vehicle base premises, a signal detector for optically detecting a signal display of the traffic signal from the outside, and a vehicle are detected. Since the vehicle detector is connected only to the monitoring control unit or the output unit, and these are battery-powered, the monitoring device is separated from all signal lines and power lines, and can be installed easily by itself. It is.
Therefore, according to the present invention, it is possible to provide a local vehicle monitoring apparatus that supports a local driver by a simpler method.
[0009]
The present invention preferably further includes a solar panel that converts light into electric power, and a charge control unit that charges the battery with the electric power converted by the solar panel. According to this configuration, since the battery can be always charged with the electric power from the solar panel, battery replacement is unnecessary, and maintenance is further facilitated.
[0010]
In addition, when the signal detection unit detects the signal display of the traffic signal by being supplied with power from the battery when the vehicle is detected by the vehicle detection unit, the power consumption in the signal detection unit can be suppressed. Since the capacity of the battery can be reduced accordingly, the structure of the apparatus can be further simplified.
[0011]
The antenna is, for example, a loop antenna, and it is desirable that the monitoring control unit, the output unit, the battery, and the solar panel are integrally structured so as to be attached to the side of the track. With such a configuration, the installation work of the apparatus becomes extremely simple.
In addition, the antenna is a multi-layered rod-shaped antenna, and this antenna, vehicle detector, signal detector, monitoring control unit, output unit, battery, and solar panel are integrally structured so that they can be attached to the side of the track. This further simplifies the device installation work (particularly the antenna).
[0012]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, a private vehicle monitoring apparatus according to an embodiment of the present invention will be described with reference to the drawings.
FIG. 1 is a schematic diagram illustrating a configuration of a private vehicle monitoring apparatus according to the present embodiment.
A traffic light 3 is disposed along the lines 1 and 2 at the junction P of the lines 1 and 2 in the vehicle depot. Now, as shown in the figure, if the vehicle 4 is traveling on the track 1 in the direction of the arrow in the figure, the region in front of the traffic signal 3 on the tracks 1 and 2 is the stop region S in this traveling direction. The on-site vehicle monitoring apparatus of the present embodiment includes an ATC signal output loop antenna 11 installed so as to surround the stop region S, and vehicle sensors 12 installed in the vicinity of the stop signs 5 and 6 on the tracks 1 and 2. 13, signal sensors 14 and 15 that optically detect the signal indication of the traffic light 3 from the outside, and a monitoring device main body 16 that connects them.
[0013]
The loop antenna 11 is, for example, a signal cable with good weather resistance arranged in a loop along the rails of the lines 1 and 2, and the antenna length takes into account the total braking / stopping distance immediately after starting from the stop position. Has been determined. When the vehicle 4 passes over the loop antenna 11 with the loop antenna 11 outputting the ATC stop signal 01, the ATC receiver 17 disposed in the vehicle 4 is electromagnetically coupled to the loop antenna 11 and looped. A stop signal 01 from the antenna 11 is received.
[0014]
The vehicle sensors 12 and 13 are constituted by, for example, reflection type infrared sensors, and detect the vehicle 4 that has once advanced from the stop marks 5 and 6. In order to prevent erroneous detection by vehicles or small animals on other tracks, the vehicle sensors 12 and 13 set the height to, for example, about 1 m and set the detection distance to the center of the track, so that the outer plate of the advancing vehicle can be secured. I try to detect it. Since the vehicle sensors 12 and 13 are always energized, they are of a lower power consumption type than the signal sensors 14 and 15.
[0015]
The signal sensors 14 and 15 optically detect the lighting state of the red light and the yellow light of the traffic light 3, convert this into an electrical signal, and output it to the monitoring device main body 16. The sensor itself is installed in a waterproof box on the back of the traffic light 3, and the light from the red light and the yellow light is guided to the sensor by an optical fiber so that the visibility of the signal light and the waterproofness of the sensor are satisfied at the same time. Anyway.
[0016]
FIG. 2 is a block diagram showing a more detailed configuration of the monitoring apparatus main body 16.
The monitoring device main body 16 floats a battery 21 for storing power to be supplied to each part, a solar panel 22 as power supply means, and a direct current voltage generated by the solar panel 22 to the battery 21 in preparation for cloudy weather at night. The charging control unit 23 for charging, the monitoring control unit 24 for outputting a stop output instruction signal based on the outputs of the vehicle sensors 12 and 13 and the signal sensors 14 and 15, and the stop signal in the ATC from the output unit 25 by the stop output instruction signal And an output unit 25 for outputting 01.
[0017]
FIG. 3 is a circuit diagram showing further details of the monitoring control unit 24.
When a vehicle detection signal is input from the vehicle sensors 12 and 13, the output control unit 31 turns on the switches 32 and 33 to supply power to the signal sensors 14 and 15. The output of the gate circuit composed of the inverter 34 and the OR gate 35 is high level (running is possible) only when the yellow light of the traffic light 3 is on and the red light is off, and is low level (stopped) in other on / off patterns. State). This is in consideration of the operation handling regulations that turn off both red and yellow as a red signal. The transistor 37 connected to the output side of the output control unit 31 via the resistor 36 has its base controlled by the output control unit 31 when the vehicle sensors 12 and 13 are turned on and the signal sensors 14 and 15 indicate a stop state. Driven, the coil 38 is driven, and the relay switch 39 is turned on. As a result, a stop output instruction signal is output via the relay switch 39.
[0018]
FIG. 4 is a block diagram illustrating a configuration of the output unit 25.
When a stop output instruction signal is input from the monitoring control unit 24, the inverter 41 converts, for example, a DC 12V voltage into a DC ± 12V voltage. The oscillation circuit 42 outputs a 3450 Hz or 3750 Hz sine wave signal to be a carrier wave of the ATC signal. The modulation circuit 43 modulates with a rectangular wave of 77 ± 1.3 Hz which is the main signal frequency of the stop signal 01. The modulated signal is amplified by the power amplifier 44 and output to the loop antenna 11 via the transformer 45.
[0019]
The operation from the vehicle detection to the ATC stop signal output in the on-site vehicle monitoring apparatus configured as described above is as follows.
[0020]
(1) When the vehicle 4 has not entered the vicinity of the stop marks 5 and 6, the power of the vehicle sensors 12 and 13 is on, but the vehicle 4 is not detected. The power supply remains off.
[0021]
(2) Once the vehicle 4 enters before the stop marks 5 and 6 and the vehicle sensors 12 and 13 detect the vehicle 4, the power of the signal sensors 14 and 15 is turned on by the monitoring control unit 24, and the traffic light 3 A signal indication is identified.
[0022]
(3) If the identified signal display is “yellow” on and “red” is off, the power of the output unit 25 is not turned on, and the ATC signal is not output, so the vehicle 4 may pass as it is. it can.
[0023]
(4) When the identified signal display is other than the pattern (3), the relay switch 39 is turned on, the output unit 25 is turned on, and the stop signal 01 is output to the loop antenna 11. In order to reduce power consumption, the stop signal 01 may be turned on for about 10 to 15 seconds in consideration of the time required until the vehicle 4 stops. When the vehicle 4 receives the stop signal 01 by the ATC receiver 17, the ATC insertion bell rings and the vehicle 4 is fully braked, and the vehicle 4 stops.
[0024]
As described above, according to the on-site vehicle monitoring apparatus of this embodiment, the ATC signal is output only when the detection conditions of the output of the vehicle sensors 14 and 15 and the signal sensor are on, and is consumed when not necessary. Electric power can be suppressed.
[0025]
In the above embodiment, a loop antenna is used as an antenna for outputting a stop signal. For example, as shown in FIG. 5, a multi-layered bar antenna 51 is used as an antenna. The vehicle sensor 52 and the signal sensor 53 may be integrated with the monitoring device main body 54. in this case,
[0026]
(1) By increasing the number of ATC loop antennas, it is possible to improve transmission efficiency and achieve transformerlessness by increasing the impedance, while maintaining the reception level of the ATC signal of the vehicle and reducing the power consumption to 1/10 or less. it can.
[0027]
(2) The panel area can be reduced to 1/8 or less by using a photovoltaic cell (solar panel 55) having a high photoelectric conversion efficiency, such as a single-crystal silicon panel to a CIGS compound semiconductor solar battery.
[0028]
(3) By using a proximity switch attached to a pyroelectric sensor or a rail as the vehicle sensor 52 instead of the infrared sensor, the vehicle sensor 52 can be easily installed in a narrow space. Further, by changing the signal sensor 53 from the short distance sensor to the long distance laser type or the image processing type, the installation of the sensor on the surface of the signal lamp can be abolished and the laying wiring can be omitted.
[0029]
【The invention's effect】
As described above, according to the present invention, the antenna disposed in the stop area in front of the traffic signal along the track in the vehicle base premises, and the signal detector for optically detecting the signal indication of the traffic signal from the outside, The vehicle detector for detecting the vehicle is connected only to the monitoring control unit or the output unit, and these are driven by the battery, so that they can be easily installed independently from the signal line and the power line. Thereby, there is an effect that the on-site driver can be sufficiently supported with a simple configuration.
[Brief description of the drawings]
FIG. 1 is a diagram schematically showing a private vehicle monitoring apparatus according to an embodiment of the present invention.
FIG. 2 is a block diagram showing details of a monitoring device main body in the same device.
FIG. 3 is a circuit diagram showing details of a monitoring control unit in the monitoring apparatus main body.
FIG. 4 is a block diagram showing details of an output unit in the monitoring apparatus main body.
FIG. 5 is an overview of a private vehicle monitoring apparatus according to still another embodiment of the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1, 2 ... Track 3 ... Traffic light 4 ... Vehicles 5, 6 ... Temporary stop 11 ... Loop antennas 12, 13 ... Vehicle sensors 14, 15 ... Signal sensor 16 ... Monitoring device body 17 ... ATC receiver 21 ... Battery 22 ... Solar Panel 23 ... Charge control unit 24 ... Monitoring control unit 25 ... Output unit

Claims (5)

An antenna that is electromagnetically coupled to a vehicle that is disposed in a stop area in front of a traffic signal disposed along a track in a vehicle base premises and is located in the stop area;
A vehicle detector arranged at a position in front of the stop area toward the traffic light to detect the vehicle;
A signal detector for optically detecting the signal indication of the traffic light from the outside;
Based on the outputs of the vehicle detector and the signal detector, when the traffic signal is a stop indication when the vehicle detector detects a vehicle, a monitoring control unit that outputs a stop output instruction signal;
An output unit that outputs a stop signal to the antenna when a stop output instruction signal is output from the monitoring control unit;
A private vehicle monitoring device comprising a battery for supplying electric power to each of these units. A solar panel that converts light into electricity;
The on-site vehicle monitoring apparatus according to claim 1, further comprising a charge control unit that charges the battery with electric power converted by the solar panel. 3. The signal detection unit according to claim 1, wherein when the vehicle is detected by the vehicle detection unit, electric power from the battery is supplied to detect a signal display of the traffic signal. On-site vehicle monitoring device. The antenna is a loop antenna;
The on-site vehicle monitoring device according to claim 2, wherein the monitoring control unit, the output unit, the battery, and the solar panel are integrally structured so as to be attached to the side of the track. The antenna is a multilayered rod antenna,
3. The premises according to claim 2, wherein the antenna, the vehicle detector, the signal detector, the monitoring control unit, the output unit, the battery and the solar panel are integrally structured so as to be attached to the side of the track. Vehicle monitoring device.

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