JP4619890B2 - Track maintenance facility data detection and inspection equipment - Google Patents

Description

  The present invention is a device for acquiring track maintenance facility data having information such as a curve, a branch, and a slope of a route required for a digital ATC (Automatic Train Control) on-board device by traveling of an inspection vehicle, and further using the data previously It is related with the apparatus which test | inspects track maintenance equipment data.

  Conventionally, in the vehicle body tilt control of a pendulum type railway vehicle, information (track data) such as where the curve is located is indispensable. Patent Document 1 discloses the track data used for the vehicle body tilt control simply and An apparatus that collects with high reliability is described.

FIG. 5 shows a schematic diagram of the trajectory shape data collection device described in Patent Document 1.
In this device, a gyroscope is mounted on the carriage that supports the vehicle, and the cant amount of the curve integrates the roll angular velocity of the carriage frame measured during traveling and converts it into a roll angle signal. The curvature of the curve is calculated from the yaw angular velocity of the bogie frame measured during travel and the travel speed at that time, and the cant amount of the curve (the difference in height between the outer lane and the inner lane) and the curve Seeking curvature.
JP-A-7-65038

  In order to create track maintenance facility data required for the digital ATC on-board device, information such as curve, branch, and gradient of the route is required. However, the apparatus described in Patent Document 1 can only obtain curvature and cant data, which are information necessary for vehicle body tilt control. In the above apparatus, since the gyroscope is directly mounted on the carriage supporting the vehicle, the carriage vibration is intense, and it is necessary to correct the waveform of the obtained position and shape signal. It is not possible to easily obtain the track maintenance facility data required for the operation.

  Therefore, the present invention proposes an apparatus and method for obtaining track maintenance facility data by running a test vehicle, and further proposes an apparatus and method for inspecting previous track maintenance facility data from the data. To do.

  The present invention provides an apparatus for obtaining curve information, branching information, and gradient information by providing a measuring instrument such as a camera at the head or tail of a test vehicle and monitoring a traveling route. As a result, track maintenance facility data can be obtained only by running the inspection vehicle, and track maintenance facility data can be inspected based on the obtained data.

  By traveling the inspection vehicle, it is possible to acquire track maintenance facility data including not only curve information but also branch information, thereby saving the trouble of surveying branch information. Furthermore, by comparing with the obtained data, the previous track maintenance facility data can be inspected, thereby improving the reliability of the data and enabling early detection of defects.

  In the present invention, the object of obtaining track maintenance facility data only by running the inspection vehicle is realized by the method of the following embodiment. Embodiments of the present invention will be described below with reference to the drawings.

  FIG. 1 shows an outline of the first embodiment of the present apparatus. This device is equipped with a camera 2 at the head, tail or both of the inspection vehicle 1 and a speed generator 3 attached to the axle or main motor shaft, and records signals from these devices. The track maintenance facility data 4 is detected by processing.

  The track maintenance facility data 4 is data having information such as a curve, a branch, and a slope of the track, and is necessary information for the digital ATC on-board device.

By monitoring the shape of the route that is passed by the camera 2 of the inspection vehicle 1, information such as curves and branches is detected from the positional relationship between the left and right trajectories in the image. An example is shown below (see FIG. 2).
FIG. 2A shows a straight track.
FIG. 2B shows a case where the center of the trajectory is on the right side of the screen center, and shows a curve to the right. If the center of the trajectory is to the left of the center of the screen, a curve to the left is shown.
FIG. 2 (c) shows a case where the trajectory is divided and shows a branch point.
FIG. 2D shows a case where the trajectory interval is wider than that in the case of a straight trajectory, and shows the change point (down) of the gradient. When the orbit interval is narrowed, the slope change point (up) is indicated.

In these states, the curvature radius is obtained by applying the calibration value obtained in advance. It is also recorded at the same time how far and how long these curves and branches start from the line segment reference point. The movement distance and traveling speed from the reference point at each moment are calculated from the output of the speed generator 3 attached to the axle and the main motor shaft and the diameter of the wheel.
Furthermore, the accuracy of the data is increased by correction based on the ground inspection signal obtained from the ground element 6 of the automatic train stopping device installed along the track, and the data is adjusted to the data of the curvature radius and the branch point.

  The data obtained as described above is first separated into curvature radius data and branch point data, and averaged. These data are compared with each of the existing track maintenance facility data by superposition. Then, the inspection means 5 extracts only the portions where there is a large difference between the measured data and the previous track maintenance facility data.

The second embodiment is a measuring device that uses organization by a GPS (Global Positioning System) system. FIG. 3 shows an outline of this apparatus.
This apparatus obtains route curve and branch point data using the GPS system 12 instead of the camera of the first embodiment. The feature of this apparatus is that there is a GPS system 12 in each vehicle in the head and tail or in the formation of the inspection vehicle.

The position of each vehicle is obtained by the GPS system 12, information on each vehicle is collected using an on-vehicle LAN (Local Area Network) 13, and the curvature radius calculation device 14 calculates the curvature radius from the positional relationship of the vehicle in knitting. To do. Although it is difficult to obtain branching point and gradient information with this apparatus, the configuration of the apparatus is simpler than that of the first embodiment.
Information related to bifurcation can be collected by repeatedly measuring with a GPS vehicle equipped with a GPS vehicle to obtain position information on the branched line, and for gradient information, it is possible to detect height differences on the ground surface. It can be obtained by adopting a GPS system of performance, and by using it together with a measuring instrument using the camera of the first embodiment, it is possible to obtain track maintenance facility data necessary for the digital ATC on-board device. .

The third embodiment is a measuring apparatus using knitting by light.
The present apparatus obtains data on a curve or a branch point of a route using light knitting instead of the camera of the first embodiment.

  FIG. 4 shows an outline of the present apparatus. The feature of this apparatus is that there are a gyroscope and an inclinometer for measuring the irradiation device 22 and the light receiving device 23 and their inclination angles on the head and tail of the inspection vehicle 1 or on the roof of different vehicles. It is.

Each device automatically changes its direction so that the light receiving device always receives the light 24 from the irradiation device, and from the position of the irradiation device and the light receiving device (vehicle center line 25) when the knitting is arranged on a plane straight line. Is a device that measures the radius of curvature and the amount of gradient by measuring the amount of movement θ using a gyroscope and an inclinometer. Although it is difficult to obtain a branch point with this apparatus, it is possible to obtain a gradient amount as well as a radius of curvature.
Information about branching can be collected by obtaining position information on a branched route by repeating measurement by an inspection vehicle equipped with the irradiation device 22 and the light receiving device 23, and using the camera of the first embodiment. By using it together with the measuring instrument, it is possible to obtain maintenance facility data necessary for the digital ATC on-board device.

It is explanatory drawing which showed the structure of the detection and inspection apparatus whole of track maintenance equipment data. Example 1 It is explanatory drawing which showed the determination method of the monitoring image. Example 1 It is a schematic diagram of an apparatus using a GPS system. (Example 2) It is a schematic diagram of an apparatus using organization by light. Example 3 It is the schematic of the track shape data collection apparatus of a prior art example.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Inspection vehicle 2 Camera 3 Speed generator 4 Security equipment data 5 Inspection means 6 Ground unit 12 GPS system 13 On-vehicle LAN
14 Curvature radius calculation device 22 Irradiation device 23 Light receiving device 24 Light 25 Vehicle center line

Claims (2)

A measuring instrument equipped with an irradiation device and a light receiving device for detecting track maintenance facility data by monitoring a traveling route attached to a test vehicle to which a plurality of vehicles are connected, and track maintenance facility data detected by the measurement device In the detection and inspection apparatus of track maintenance equipment data, which has a means for comparing the track maintenance facility data already collected and an inspection means for extracting a part of a route having a large difference in track maintenance facility data,
The instrument of the irradiation device and the photodetection device, are respectively mounted et the beginning and end of the vehicle, or different vehicles on the roof in the organization of the Kensokusha a plurality of vehicles are connected,
Each device automatically changes its direction so that the light receiving device always receives light from the irradiation device, and when the formation of the vehicle of the inspection vehicle to which a plurality of vehicles are connected is aligned on a plane straight line The track maintenance is characterized in that a radius of curvature and a gradient amount are calculated based on a movement amount obtained by measuring a change angle from the position of the irradiation device and the light receiving device, and track maintenance facility data including curve information and gradient information of the route shape is detected. Equipment data detection and inspection equipment.   The said measuring device is provided with the receiver which receives a point detection signal from the ground element of the speed generator attached to the axle shaft and the main motor shaft of the said inspection vehicle, and an automatic train stop apparatus. Track maintenance facility data detection and inspection equipment as described.

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