JPH11286274A - Discriminating method and inspection measuring method for ats - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a discriminating method for ATS capable of precisely discriminating the kind of ATS without depending on a manual work or ATS resister and a measuring method of ATS capable of precisely inspection measuring the set position and function of ATS. SOLUTION: The height of an ATS 2 from a rail surface is measured by a displacement sensor 4 loaded on a vehicle. Further, a moving pulse showing the traveling distance is provided by a laser Doppler sensor 5 loaded on the vehicle. These data are combined to discriminate the kind of the ATS 2 without depending on an ATS resister. The set position of the ATS 2 can be also precisely determined. Further, the F-value and Q-value are determined by a measuring coil 6, and it is judged whether the ATS 2 specified from these data satisfies the F-value and Q-value to be possessed or not.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an identification method and an inspection method of an ATS (ATS ground member) provided along a railway rail.

[0002]

2. Description of the Related Art ATS has a shape, a dimension, an F value (resonance frequency), and a Q value (a value indicating sharpness of resonance) according to a purpose of use.
There are several types of different types and the like, which are installed at predetermined positions between railway rails. Since these ATSs are important devices that support the safe operation of trains, the installation positions and functions of each ATS must be regularly measured.

Conventionally, this inspection work is carried out by a method in which an operator visually identifies the type of ATS while running the inspection vehicle at a low speed, and simultaneously checks the F value and the Q value using a measuring instrument. Had been However, such a method relying on humans sometimes overlooks the ATS, and has a problem in accuracy. In addition, the work may take a long time, so
Inspection can be performed only about once. Therefore, if there is an ATS newly established or moved in the meantime, the number or position does not match the ATS ledger, and there is a problem that it takes time and effort to collate data. In addition, for example, the distance from the railroad crossing to the ATS or A
Measuring the interval between TS and ATS also required a lot of trouble.

[0004] Therefore, an inspection vehicle equipped with a Q-value measuring device is driven at an operating speed, and the type of ATS is identified based on the Q-value. Has been proposed and implemented to determine whether or not the above condition is satisfied. Since this method does not rely on humans, there is an advantage that the ATS can be measured at a high speed.

However, in this method, since the ATS is recognized by an electrical method based on the Q value to identify the type, the ATS is used.
When the TS is out of order, the inspection vehicle determines that the ATS does not exist. For this reason, the inspection result must be collated with the ATS ledger by taking a lot of trouble after the inspection, and the maintenance of the ATS ledger requires a lot of trouble. Also, even if the ATS itself is functioning normally, if the installation height is too low, the Q value measuring device mounted on the inspection vehicle cannot detect the Q value correctly, and it is treated as a failure or non-existence. There was a thing.

[0006]

SUMMARY OF THE INVENTION The present invention solves the above-mentioned conventional problems, and does not rely on manual labor or an ATS ledger.
The purpose of the present invention is to provide an ATS identification method capable of accurately identifying the type of an ATS, and an ATS inspection method capable of accurately inspecting an ATS installation position and function without relying on manual or ATS ledgers. It is a thing.

[0007]

Means for Solving the Problems A method for identifying an ATS according to a first aspect of the present invention, which has been made to solve the above-mentioned problems, measures the height of the ATS from a rail surface by a displacement sensor mounted on a vehicle. The output of this displacement sensor is combined with the output of a laser Doppler sensor
The type of ATS is identified by measuring the length of S. In addition, A of the second invention
The inspection method of the TS is the ATS identified by the first invention.
And the output of the laser Doppler sensor are combined to detect the installation position of the ATS. Further, in the ATS inspection method of the third invention, the type of the ATS is identified by the first invention, and the F value and the Q value of the ATS are measured by a measurement coil mounted on the vehicle, and the values are identified. It is characterized in that it is determined whether or not the F value and the Q value to be possessed by the specified type of ATS are satisfied.

According to the ATS identification method of the first invention,
The ATS length is measured by combining the output of the displacement sensor and the output of the laser Doppler sensor, and the type of ATS is identified.
The type of ATS can be specified accurately without the need for collation with the ledger. According to the ATS inspection method of the second invention, the distance from the reference point or the railroad crossing to the ATS or the ATS
And the distance between the ATS and the ATS can be automatically measured with high accuracy. Further, according to the ATS inspection method of the third invention, it is determined whether or not the value measured by the F value and Q value measuring device mounted on the vehicle satisfies the specified ATS F value and Q value. Is determined accurately and quickly.
The function of the TS can be measured. Further, even when an abnormality is detected in the Q value, it can be easily determined whether or not the abnormality is caused by a shift in the installation height.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a diagram showing a system configuration used in the present invention, where 1 is a rail, and 2 is an AT installed at a position several tens mm below the rail surface.
S and 3 are the vehicle bodies of the inspection vehicle. The vehicle body 3 has a displacement sensor 4, a laser Doppler sensor 5, and a measuring coil 6.
And are attached.

The displacement sensor 4 has an ATS 2 from the rail surface.
If the height of the can be measured without contact,
Any type such as an optical sensor, an ultrasonic sensor, and an electric sensor can be used. In this embodiment, A
A displacement sensor 4 that irradiates a light beam on the upper surface of the TS 2 and measures a distance to the vehicle body 3 is used. Since the distance between the vehicle body 3 and the rail surface is constant, the height of the ATS 2 from the rail surface can be easily obtained if the distance to the upper surface of the ATS 2 can be measured. The output of the displacement sensor 4 is the waveform shaping circuit 1
1, the waveform is shaped as shown in FIG.

The laser Doppler sensor 5 is a sensor capable of irradiating a moving object with a laser beam at a crossing angle and detecting the speed of the moving object using the Doppler effect, and is itself commercially available. . When the laser Doppler sensor 5 is attached to the vehicle body 3 and a laser beam is irradiated toward the wheels 7 or the rails 1, the speed of the vehicle body 3 can be detected, and the moving distance can be obtained by integrating the speed. In this embodiment, the laser Doppler sensor processing unit 8 performs a calculation, and generates a moving pulse signal so that one pulse is provided for every fixed traveling distance as shown in FIG. Actually, one pulse is generated every 1 cm of traveling distance,
In FIG. 2, the pulse width is expanded for convenience of illustration.

The signal obtained by shaping the height signal of the ATS 2 from the displacement sensor 4 by the waveform shaping circuit 11 and the moving pulse signal from the laser Doppler sensor processing section 8 are input to the ATS identification device 9. ATS identification device 9
Then, by combining both signals, whether the detected object of the displacement sensor 4 is ATS2 or a sleeper,
Judge whether it is crushed stone. That is, as shown in FIG. 2, sleepers and crushed stones are lower than ATS2,
2 is easy to identify. Even if tall grass grows, there is no possibility that the flat surface is continuous in the longitudinal direction of the rail 1 unlike ATS2, so that there is no possibility of misidentification.

FIG. 2 shows three types of ATSs 2 of the MO type, the MK type and the MS type, all of which differ in the longitudinal length and surface shape of the rail 1. For this reason, by combining the output signal of the waveform shaping circuit 11 and the moving pulse signal obtained from the laser Doppler sensor processing unit 8, the ATS identification device 9 can perform comparison with the ATS ledger unlike the related art. The type of ATS2 can be accurately identified. Therefore, according to the first invention, the type of ATS can be specified accurately without relying on humans and without requiring collation with the ATS ledger as in the prior art.

According to the second aspect of the present invention, by combining the type of the ATS 2 obtained as described above and the output of the laser Doppler sensor 5, the type and the installation position of the ATS 2 can be detected. For this reason, the distance from the reference point or the railroad crossing to each ATS 2 and the distance between the ATSs 2 and 2 can be automatically measured with high accuracy without the need to collate with the ATS ledger.

In the third aspect, the identification signal is input to the diagnostic system 10. As shown in FIG. 1, an F value (resonance frequency) and a Q value (a value indicating the sharpness of resonance) of the ATS 2 measured by the measurement coil 6 are input to the diagnostic system 10. For this reason, the F-number and Q defined for each type of ATS identified by the ATS identification device 9
The value and the value measured by the measuring coil 6 are compared, and it is determined whether or not the F value and the Q value of the ATS 2 are satisfied. In this case, the Q value is affected by the fluctuation of the installation height of the ATS2. However, since the height of the ATS2 is measured in the third invention, if the measured Q value does not satisfy the standard, the installation is performed. There is also an advantage that it is possible to accurately diagnose whether the change is due to a change in height or a change in absolute Q value.

It has been confirmed that such inspection can be performed with high accuracy even when the inspection vehicle is driven at an operating speed of 100 km / h or more. Therefore, according to the present invention, A
Since TS identification and inspection can be performed frequently without requiring humans, and data on the type of ATS and its installation position can be easily obtained, maintenance of the ATS ledger can be performed at the same time.

[0017]

As described above, the ATS of the present invention
According to the identification method, the type of the ATS can be accurately identified by combining the measured value of the height of the ATS from the rail surface and the moving pulse signal of the laser Doppler sensor. According to the ATS inspection method of the present invention,
The location and function of the ATS can be accurately measured without relying on the ATS ledger or manuals. Therefore, it is not necessary to collate with the ATS ledger. In this respect, the work load can be reduced. In addition, when an abnormality is detected in the Q value, it can be easily determined whether or not the abnormality is caused by a deviation in the installation height of the ATS. There are many benefits such as can be.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a system configuration used in the present invention.

FIG. 2 is a graph showing an ATS height signal.

[Explanation of symbols]

 Reference Signs List 1 rail 2 ATS 3 body 4 displacement sensor 5 laser Doppler sensor 6 measuring coil 7 wheel 8 laser Doppler sensor processing unit 9 ATS identification device 10 diagnostic system 11 waveform shaping circuit

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Shoji Omori 1-2-4 Meiji Station, Nakamura-ku, Nagoya City, Aichi Prefecture Inside Nagoya Railway Company (72) Inventor Masamoto Mizuno Meiji Station, Nakamura-ku, Nagoya City, Aichi Prefecture Nagoya Electric Industry Co., Ltd. (72) Inventor Shohei Yokoyama Nagoya Electric Industry Co., Ltd. (72) Inventor Tsuyoshi Ogino Nagoya City, Aichi Prefecture 2-9-1 Shinei-ku, Meitetsu Sumisho Kogyo Co., Ltd.

Claims (3)

[Claims] 1. A height of an ATS from a rail surface is measured by a displacement sensor mounted on a vehicle, and an output of the displacement sensor is combined with an output of a laser Doppler sensor mounted on the vehicle to measure the length of the ATS. By doing
A method for identifying an ATS, comprising identifying an ATS type. 2. A method for detecting an ATS, comprising detecting an ATS installation position by combining an ATS type identified by the method according to claim 1 with an output of a laser Doppler sensor. . 3. The method according to claim 1, wherein the type of the ATS is identified, and ATS is detected by a measuring coil mounted on the vehicle.
A method for measuring an ATS, comprising measuring an F value and a Q value of a TS, and determining whether or not the values satisfy an F value and a Q value to be possessed by the identified type of ATS. .