JPH10285715A - Train-controlling device of pattern speed checking type - Google Patents

Abstract

PROBLEM TO BE SOLVED: To check speed patterns and train speed continuously at low cost. SOLUTION: This device is provided with a compensator 8, which corrects the speed signal from a speed generator and supplies the corrected signal to a speedometer 9, and a receiver 10, which has a speed checking part which integrates the speed signal from the compensator 8 for generating a stepping distance signal and comparing both of the speed signal from the compensator 8 and the generated stepping distance signal with pre-set speed checking patterns. The brake is designed to be actuated, if the speed signal from the compensator 8 exceeds the speed checking patterns.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a train control apparatus which compares a speed pattern with a train speed and activates a brake when the train speed exceeds the speed pattern.

[0002]

2. Description of the Related Art In train control, a train has a speed pattern up to a stop, calculates a train speed and a traveling distance from a certain point by a frequency signal from a speed generator, compares the train speed with the speed pattern at that time, When the train speed exceeds the speed pattern, one that activates the brake is used.

An example of such a train control will be described with reference to FIG. As shown in the drawing, an on-board antenna 1 for detecting a point signal from the ground as an on-board device, a receiving device 2 for receiving a point signal from the on-board antenna, and speed generators 4a and 4b. A speed checking device 3 for calculating a train speed and a stepping distance from a frequency signal and comparing a speed pattern with a train speed by using point information from the receiving device 2, a relay panel 5, an alarm device 6, and a display device 7 are equipped. The speed generators 4a and 4b are mounted on different wheels in order to correct a speed error caused by slipping, and the train speed is obtained from the detected frequency signal, and the number of pulses of the frequency signal is counted. Then, the traveling distance from a certain point is calculated, and the speed pattern at that time is compared with the train speed. When the speed pattern is exceeded, the relay board 5 is operated by the speed checking device to activate the emergency brake or the regular brake. Works. In addition, it is desirable that the wheel to which the speed generator is attached is a driven shaft and a weak brake shaft in order to minimize idling.

In addition, in order to assist the driver in operating the train outside these facilities, as shown in FIG.
An additional speedometer is provided in which a compensator 8 corrects an error caused by wear of the wheels included in the speed signal from the vehicle and indicates the speed by a speedometer 9.

[0005]

Although the train control device shown in FIG. 5 is partially introduced, most of the other train control devices are provided with a brake command as represented by ATS-S. In many cases, only a receiver with a relay is mounted. The function of the receiver with the brake indication relay is as follows. The alarm sounds when the vehicle passes the ground antenna about 600 m before the stop signal, and the emergency brake is activated if it does not perform the prescribed confirmation. The emergency brake is activated when the vehicle passes the ground antenna about 30m before the stop signal. If the time between the two ground antennas is shorter than a predetermined time, the emergency brake is activated.

And so on. These methods do not have a function of continuously comparing train speeds on a vehicle according to an allowable speed signal sent from the ground. In order to add such a function to the ATS-S on-board device, two speed generators for detecting and correcting slipping and gliding, a speed checking device for comparing a speed pattern with a train speed, The cost of equipment such as a display and the cost of outfitting are incurred, so that the pattern control train control is not widely used at present.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problem, and utilizes an existing speed generator and receiver to continuously connect a speed pattern and a train speed at low cost without specially installing a new device. It is an object of the present invention to provide a pattern speed check type train control device capable of checking a pattern speed.

[0008]

SUMMARY OF THE INVENTION The present invention relates to a compensator for correcting a speed signal from a speed generator, supplying the corrected speed signal to a speedometer, and integrating the speed signal from the compensator to increase the speed. A receiver having a flash unit for generating a distance signal and comparing the speed signal from the compensator and the generated step distance signal with a preset speed check pattern, wherein the speed signal from the compensator is The brake is activated when the speed check pattern is exceeded. Further, the present invention is characterized in that the receiver corrects the generated stepping distance based on a point signal received via an on-vehicle antenna.

[0009]

Embodiments of the present invention will be described below. FIG. 1 is a diagram schematically showing the configuration of the train control device of the present invention, and FIG. 2 is a diagram for explaining speed comparison of the train control device of the present invention. In FIG. 1, the speed generator 4,
Existing equipment is used as it is for the compensator 8, the speedometer 9, the on-vehicle antenna 1, and the like. The receiver 10 adds a speed check function,
The flash unit 10a is provided outside the receiving unit 10b.

The speed signal detected by the speed generator 4 is corrected by a compensator 8 so that an accurate speed signal (voltage) is obtained by a speed meter 9.
And the train speed is indicated. The speed signal is also applied from the compensator 8 to the flash unit 10a of the receiver 10. As shown in FIG. 2A, the speed signal is obtained as a voltage level corresponding to the speed, and the step distance is obtained by integrating the voltage level. That is, as shown in FIG. 2 (b), for example, 35
From the point in time when the point signal just before 0 m is received,
In step a, the speed signal is integrated to generate stepping distance information to the stop indicating signal. The flashing unit 10a has a speed checking pattern in a 350m section up to the stop indicating signal, and continuously compares the generated speed checking pattern at each stepping distance with the measured train speed. When the check pattern is exceeded, the emergency brake is operated by the brake relay 11. The speed check pattern is appropriately set in consideration of the braking performance and the like, and the section to be generated can be appropriately changed.

Next, a specific example of the present invention will be described.
FIG. 3 is a diagram illustrating an example of train control according to the present invention, and FIG. 4 is a diagram illustrating a frequency-variable frequency signal of a ground child. As shown in FIG. 3, 600m, 350m, 120m, 20m before the traffic light
Ground terminals are arranged in the vicinity of m, and when the train passes through these points, the oscillation frequency of the onboard antenna changes due to coupling with the ground terminals. That is, as shown in FIG. 4, for each position of 600 m, 350 m, 120 m, and 20 m before the traffic light, when a red light is emitted, 130 kHz,
The frequency is changed to 87 kHz, 94 kHz, and 123 kHz, and is changed to 103 kHz for a blue signal. And 350m
It has a speed check pattern from the near side to around 20 m, and when the train speed exceeds this speed, the emergency brake is activated.

Now, the train stops 600 before the traffic signal.
When the vehicle passes through a long ground terminal (move frequency 130 kHz) in the vicinity of m, the alarm 12 sounds and the emergency brake is activated unless a predetermined confirmation treatment is performed within 5 seconds. After passing through a 350 m ground wire (87 kHz frequency variation) after the confirmation treatment, "350 m before stop signal" is determined on the vehicle, and a speed check pattern is generated. The speed check pattern is created and set in advance in consideration of the braking performance and the like, and is read out. Thereafter, as described with reference to FIG. 2, the speed signal from the compensator is integrated by the speed flash unit 10a to determine the step distance, and the speed check pattern and the train speed are sequentially compared at each determined position, and the speed excess is calculated. In the case of, the emergency brake operates. When the train runs at a speed equal to or lower than the pattern speed and passes through a 120m-point ground child (variation frequency: 94kHz), "120m before the stop signal" is determined on the car, and the speed obtained by integrating the speed is determined. The advance distance error is corrected. Then the pattern speed and the train speed are compared,
If the speed is exceeded, the emergency brake is activated. 20m in front of the present traffic light, directly above the ground (123kHz frequency)
As soon as you pass above, the emergency brake is activated.

[0013]

Conventionally, in many conventional lines, only a receiver with a brake indication relay is often mounted.
Although there was no function to continuously check the train speed on the car in response to the speed signal, the train equipped with a receiver with a brake indication relay was also equipped with a speed generator, and the compensation of the wheel diameter was compensated by a compensator To display the correct speed on the speedometer. Therefore, in the present invention, a speed signal of an existing speed generator is utilized, a speed signal is integrated to generate a stepping distance of a train, and the stepping distance and the train speed are compared with a speed check preset in a receiver. By comparing with a pattern, continuous speed checking is possible. In this way, there is no need to install new equipment such as a speed checking device, and only the improvement of the receiver and the outfitting work for inputting the speed signal are required, using the existing speed generator. Can be significantly reduced as compared with the conventional speed checking method.

[Brief description of the drawings]

FIG. 1 is a diagram schematically showing the configuration of a train control device according to the present invention.

FIG. 2 is a diagram illustrating the principle of train control according to the present invention.

FIG. 3 is a diagram illustrating a specific example of train control.

FIG. 4 is a diagram for explaining a ground element and a variable frequency.

FIG. 5 is a diagram illustrating a conventional train control having a speed checking device.

FIG. 6 is a diagram illustrating a speedometer.

[Explanation of symbols]

1 ... car antenna, 2 ... receiving device, 3 ... speed checking device,
4a, 4b: speed generator, 5: relay board, 6: alarm,
7 ... Display, 8 ... Compensator, 10 ... Receiver, 11 ... Brake instruction relay, 12 ... Alarm.

Claims (1)

[Claims] 1. A compensator for correcting a speed signal from a speed generator and supplying the corrected speed signal to a speedometer, a step signal generated by integrating the speed signal from the compensator, and compensation And a receiver having a flashing section for comparing the speed signal from the compensator and the generated step distance signal with a preset speed checking pattern, and a brake when the speed signal from the compensator exceeds the speed checking pattern. A pattern speed checking type train control device which operates the.