JP3537523B2 - Time series display method of trolley wire measurement data - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for displaying each measurement data of a trolley wire several times in a time series.

[0002]

2. Description of the Related Art A train travels by receiving electric power from an overhead trolley wire provided on a train line. FIG. 4 shows an erection mechanism 2 for an overhead trolley wire (simply called a trolley wire) 1 and a trolley wire 1.
2 shows a cross section of FIG. The erection mechanism 2 hangs a messenger 23 with a bracket 22 on each supporting utility pole 21 planted for each appropriate span L, and further hangs the trolley wire 1 horizontally at a predetermined height H with a hanger 24. You. The cross section of the trolley wire 1 is circular, and has two grooves as shown in the drawing for the hanger 24 at the upper part thereof. The pantograph 3a of the train 3 is in sliding contact with the lower surface (referred to as a sliding surface) of the trolley wire 1 to receive electric power. The diameter R (remaining diameter) becomes smaller. Since there is a simple relationship between the remaining diameter R and the sliding surface width W, if W is measured, R can be easily obtained. On the other hand, since the contact surface of the pantograph 3a also wears out, the trolley wires 1 are alternately displaced for each utility pole 21 as shown in the drawing so as not to concentrate. Dm
Indicates the maximum value of the deviation amount.

The trolley wire 1 which is gradually worn as described above is
When the wear reaches the limit, it is replaced with a new one. Further, the deviation D and the height H of the trolley wire 1 need to be maintained within allowable ranges with respect to the standards. An electric inspection vehicle is provided for these, and by traveling, the remaining diameter R, the deviation amount D, and the change amount of the height H of the trolley wire 1 are measured, and each measurement data is examined on the ground. ,
Each pass / fail is checked . FIG. 5 shows a configuration of a trolley wire measurement system including the electric test vehicle 4 and the ground equipment 6. The inspection car 4 has a pantograph 4a dedicated to measurement,
A wear displacement measuring device 51,
Height measuring device 52, telephone pole detector 53, distance pulse generator 54,
And a measurement unit 5 including a data processing unit 55. The wear displacement measuring device 51 scans the light beam by projecting it over the sky,
The sliding surface width W and the displacement D of the trolley wire 1 are measured, and the height detector 52 is directly connected to the rotation axis of the pantograph 4a, and measures the height H based on the rotation angle. The utility pole detector 53 irradiates the light beam to the sky, detects the reflected light of the bracket 22 instead of the utility pole 21, and outputs it as a utility pole detection pulse PD. In addition, the distance pulse generator 54 is directly connected to the wheels of the inspection vehicle 4,
By this rotation, a distance pulse PK is generated for each fixed traveling distance. On the other hand, the ground equipment 6 is provided in an appropriate building on the ground.

FIG. 6 shows an example of a block configuration of the data processing unit 55 and data stored in a flexible disk (FD). 3A, the data processing unit 55 includes a signal processing circuit 551, a microprocessor (MPU) 552, a memory (MEM) 553, and a flexible disk (F).
D) The measurement data of the sliding surface width [W] and the amount of deviation [D] from the wear deviation measuring device 51 are removed by the signal processing circuit 551 by the traveling of the inspection vehicle 4, and the noise is removed by the signal processing circuit 551. The sliding surface width [W] is converted to the remaining diameter [R], and both are converted to MPU55.
Entered in 2 . The height data [H] from the height detector 52, the power pole detection pulse [PD] from the power pole detector 53,
And the distance pulse [PK] from the distance pulse generator 54 is
It is sequentially input to the MPU 552 . In the MEM 553 , the distance from the starting end of each pole and the pole number in the measurement section are set in advance, and by referring to this, the detection position data of the sequentially inputted pole detection pulse [PD] is added to each pole position. A number is added and stored in the FD 554 in parallel with each measurement data and the data of the distance pulse [PK] as illustrated in (b). (b) shows the case of a double section in which two trolley wires 1 are laid in parallel, and the remaining diameters [R1] and [R2] of the two trolley wires 1 in order from the top and the changing deviations respectively. There are curves for quantity [D] and height [H], below which are:
Two pole detection pulses [PD] (as detection data),
There are utility pole numbers (n) and (n + 1) added to these, and a number of distance pulses [PK] (as detection data) are arranged at equal intervals between them. Note that the trolley wire 1 is stored in a similar manner although there are four cases.

FIG. 7 shows a configuration of the ground apparatus 6. The ground device 6 includes a disk drive (DRI) 61 and a pen recorder 62. The FD 554 mounted on the DRI 61 has the remaining diameters [R1] and [R2] stored therein and the displacement [D]. And the measurement data of the height [H], the generation position of the utility pole detection pulse [PD], and the utility pole numbers (n), (n +
1) are recorded in parallel on the chart paper 63 of the pen recorder 62, each measurement data is inspected by an inspector by comparing them with respective allowable limit values, and a defective portion is determined by a telephone pole number and a distance pulse [PK]. Specified.

The trolley wire 1 wears gradually as described above, and its deviation D and height H sometimes change. When these are inspected, by comparing each measurement data with the past data, the progress of wear and the state of deviation and change in height are grasped in chronological order, which is effective for detecting an abnormal or defective portion. For this purpose, the FD55 obtained from each running measurement
For example, three measurement data, for example, the last two times, the last time and the current time, may be selected from the measurement data of No. 4 and displayed in chronological order on the same chart paper 63 as shown in FIG. A method is desired.

[0007]

As described above, when each measurement data obtained by a plurality of traveling measurements is displayed in time series on the same chart paper, there are the following problems. First, in order to compare the time-series measurement data with each other, it is necessary to make the measurement positions of the measurement data coincide with each other. To this end, the utility pole numbers of the utility pole detection pulses [PD] must be completely changed. It is necessary to align them at the same position. However, even if the pole numbers are aligned, the distance pulses [PK] are not at the same position. The reason is that the wheels of the inspection vehicle 4 gradually wear due to running, so that the diameter becomes smaller and the number of revolutions increases, and the interval of the distance pulse [PK], which should always be constant, becomes gradually smaller. From. FIG. 9 illustrates this. For example, if (a) is the previous time and (b) is the current time,
The interval ΔL of the distance pulse [PK] in (a) is ΔL ′ in (b).
And the distance pulse [P
The number of [K] increases from r in the previous time to s (r <s) this time. Therefore, the distance pulses [PK] at gradually narrower intervals are stored in each FD 554 in a plurality of traveling measurements, and when these are recorded in a chart, the positions of the respective measurement data are not aligned and comparison is impossible. Therefore, means for aligning the pole number of each pole detection pulse [PD] and each distance pulse [PK] at the same position is required. The present invention has been made in view of the above, and aligns the pole number of each pole detection pulse [PD] and the distance pulse [PK] at the same position by a plurality of traveling measurements,
It is an object of the present invention to provide a method of displaying each measurement data in time series.

[0008]

According to the present invention, there is provided a time-series display method of trolley wire measurement data which achieves the above object. The distance between several power poles in the correction section was counted for each running measurement, and the number of pulses counted was counted last time for each power pole in the correction section. The interval correction coefficient is obtained by calculating the rate of increase in the number of pulses with respect to the previous time due to the wear of the wheels of the inspection vehicle compared to the number of pulses. A correction circuit is provided in the on-board device to set an interval correction coefficient, and for the travel measurement after the correction section, the interval of each distance pulse is corrected by the interval correction coefficient, and the interval of each distance pulse at the previous measurement is calculated. Real
Obtain each qualitatively corrected distance pulse, and use this correction
The obtained distance pulses are stored in parallel in an external storage device, for example, a flexible disk, together with the measurement data and the utility pole detection data (the location data of the utility pole detection pulse and the utility pole number corresponding thereto). For the ground equipment, each pole data of multiple flexible disks obtained by each measurement of the inspection car is processed,
A ground processing unit having a memory for storing the measurement data of each flexible disk and each distance pulse together with the electric pole numbers of the electric pole data for each traveling measurement at the same position is provided. The respective measurement data for a plurality of required traveling measurements is selected from this memory, and output together with the position data and the pole number of each pole detection pulse aligned with the above, and the data of each distance pulse whose interval has been corrected. , Are recorded in parallel on a chart paper and displayed in chronological order.

[0009]

In the time series display method described above, in the correction section at the start end of the measurement section, the distance pulse between several telephone poles is counted for each traveling measurement, and the number of pulses counted is Compared with the previously counted number of pulses between poles, the rate of increase in the number of pulses with respect to the previous time due to wear of the wheels of the inspection vehicle is determined, and thereby the interval correction coefficient is determined. Normally, a correction coefficient is obtained as the reciprocal of the average value of the increase rate in each correction section. An interval correction coefficient is set in the correction circuit provided in the on-board device, and the interval between each distance pulse is corrected by the interval correction coefficient for traveling measurement after the correction section, and is equal to the interval between the previous distance pulses. This is stored in an external storage device, for example, a flexible disk, in parallel with each measurement data and each utility pole detection data. The ground processing unit provided in the ground equipment processes each pole detection data of multiple flexible disks obtained by each traveling measurement of the inspection vehicle, and aligns each pole number for each traveling measurement at the same position Then, it is stored in the memory together with each measurement data of each flexible disk and each distance pulse.
In addition, each measurement data selected multiple times from the memory is
Position the utility pole pulse generation position data and utility pole numbers aligned, and with each distance pulse is corrected interval is a time series displayed and recorded in parallel on chart paper. With this display, a change with time of each measurement data is grasped, and an abnormal or defective portion is easily detected, and its position is accurately specified by the telephone pole number and the distance pulse.

[0010]

1 to 3 show one embodiment of the present invention.
FIG. 1 is a configuration example of a measuring unit 5 of an on-vehicle device to which the present invention is applied, FIG. 2 is an explanatory diagram of a method of correcting a distance pulse interval, and FIG.
(a) is a configuration diagram of the ground apparatus 6 to which the present invention is applied, and (b) is a display diagram illustrating each measurement data in a time series recorded on a chart paper 63.

The measuring section 5 shown in FIG. 1 corresponds to FIG.
The distance pulse generator 54 and the MPU 552
, An interval correction circuit 56 and switches S1 and S2 are provided,
The connection is made as shown in the drawing, and the distance of each utility pole 21 from the start end of the measurement section and the utility pole number are set in the MEM 553 in the same manner as in the related art. In FIG. 2, a plurality of m power poles 21-(1) to (m) at the beginning of the measurement section of the electric inspection vehicle 4 are defined as correction sections. The number m is suitably, for example, ten. Prior to the start of each measurement, both switches S
The distance pulse generator 54 is directly connected to the MPU 552 by means of S1 and S2 and travels in the correction section. As shown in FIG.
Count by PU552, calculate the total Σr,
In the next time shown in (b), the number of pulses r1 'to rm' of the distance pulse [ P K ] is similarly counted, and the total Σr 'is calculated. When (Σr ′ / Σr) is obtained, the current measurement and the previous measurement are performed due to the wear of the wheels of the inspection vehicle 4 in the pole section.
The rate of increase in the number of pulses at the time is obtained, the average value of the rate of increase in each section is obtained, and the interval correction coefficient K (the average value of the rate of increase (Inverse number) is set in the interval correction circuit 56. In each traveling measurement, the interval correction coefficient K is calculated and set in the interval correction circuit 56 each time.
1, S2 by connecting the distance pulse generator 54 and the distance correction circuit 56 during MPU552, each distance pulse current measurement time [P
The interval of [K] is corrected by the interval correction coefficient K, the running measurement is performed as the same as the interval of each distance pulse at the previous measurement , and each measurement data is input to the MPU 552. On the other hand, MPU552
The pole detection pulse [PD] sequentially input to the
With reference to each telephone pole number set in 553 , it is generated as telephone pole detection position data (electric pole detection data) to which each telephone pole number is added. In this way, the distance pulse [PK] corrected to the same interval in each of the plurality of traveling measurements is the same as the measured data and the pole detection pulse [PD] to which the pole number is added as pole detection data. together with data indicating the generation position (the utility pole position data) is stored in parallel to each FD554.

Next, the ground device 6 shown in FIG. 3 is provided between the DRI 61 and the pen recorder 62 of the ground device 6 shown in FIG.
Microprocessor (MPU) 64 and hard disk (H
D) 65 is added. It is assumed that the inspection vehicle 4 has performed the traveling measurement N times, and a plurality of N obtained by these measurements
The FDs (1) to FD (N) are mounted on the DRI 61 each time the measurement is completed, and each measurement data and each pole detection data (pole detection pulse [PD]) stored therein are attached.
(Power pole position data and its pole number) and the data of each distance pulse [PK] are sequentially stored in the HD 65. In this storage, each pole number is decoded and the position where each pole detection pulse [PD] is generated is aligned to the same position. Now, for example, two times before (N-2)
And (N-1) for each measurement data of the previous (N-1)
When comparing them with each other as a time series,
Each measurement data is selected from the HD 65 and output to the pen recorder 62 together with the pole detection pulse [PD] and its pole number aligned at the same position as described above, and each distance pulse [PK] whose interval has been corrected. Then, as illustrated in (b), it is recorded on the chart paper 63, and the respective measurement data in time series are displayed with their respective measurement positions coinciding. In addition,
A dashed line G in the figure indicates an allowable limit value for each measurement data. The time change such as the wear state of the trolley wire 1 is grasped by each measurement data displayed in time series, and an abnormal or defective portion is easily detected, and the position is accurately specified by a pole number and a distance pulse [PK]. Is done.

[0013]

As described above, in the time-series display method according to the present invention, the reduction of the distance pulse interval due to the wear of the wheels of the inspection vehicle is corrected by the correction circuit provided in the on-board device. Each traveling measurement is set to a constant value, and each pole detection pulse and its pole number are all aligned at the same position for each traveling measurement, along with the measurement data from each traveling measurement and the chart paper of the pen recorder. Are recorded in parallel to each other, and each measurement data is displayed in chronological order.The progress of the wear of the trolley wire and the deviation and the change of the height are grasped, and abnormal or defective parts are easily detected.
There is a great effect that the position is accurately specified and contributes to the efficiency of the trolley wire inspection.

[Brief description of the drawings]

FIG. 1 is a configuration diagram of an embodiment of a measuring unit according to the present invention.

FIG. 2 is an explanatory diagram of a method of correcting a distance pulse interval.

FIG. 3 (a) is a configuration diagram of an embodiment of the ground equipment according to the present invention, and FIG. 3 (b) is a display diagram showing an example of each measurement data displayed in time series on a chart paper.

FIG. 4 is a cross-sectional view of a trolley wire erection structure.

FIG. 5 is a configuration diagram of a trolley wire measurement system including an electric inspection vehicle and a ground device.

FIG. 6 is a block diagram of a data processing unit.

FIG. 7 is a configuration diagram of a ground device.

FIG. 8 is an explanatory diagram of measurement data displayed in time series.

FIG. 9 is an explanatory diagram of reduction of a distance pulse interval.

[Explanation of symbols]

1 trolley wire, 1a slidable surface, 2 trolley wire erection structure,
21 ... support pole, simply pole, 3 ... train, 4 ... electric inspection car,
4a: Pantograph for measurement, 5: Measuring unit, 51: Abrasion displacement measuring device, 52: Height measuring device, 53: Electric pole detector, 54: Distance pulse generator, 55: Data processing unit, 551: Signal processing circuit ,
552: Microprocessor (MPU), 553: Memory (MEM), 554: Flexible disk (FD), 56
... interval correction circuit, 6 ... ground equipment, 61 ... disk drive (DRI), 62 ... pen recorder, 63 ... chart paper, 64 ...
Microprocessor (MPU), 65: Hard disk (HD), [PD]: Electric pole detection pulse, [PK]: Distance pulse, W: Sliding surface width, R: Remaining diameter, D: Deflection or deviation, H: Height, G: tolerance line.

Continuation of the front page (72) Inventor Tetsuro Hirai 3-16-3 Higashi, Shibuya-ku, Tokyo Inside Hitachi Electronics Engineering Co., Ltd. (56) References JP-A-4-346015 (JP, A) JP-A-3-3 183301 (JP, A) JP-A-53-142711 (JP, A) JP-B-53-35465 (JP, B1) (58) Fields investigated (Int. Cl. ⁷ , DB name) B60L 3/00 B60M 1 / 28 G01B 21/00 G01B 21/10

Claims (2)

(57) [Claims] An interval between several power poles at a start end of a measurement section of an inspection vehicle is set as a correction section, and a distance pulse between each power pole in the correction section is counted for each traveling measurement. Is compared with the number of pulses previously counted for each pole in the correction section, an increase rate of the number of pulses with respect to the previous measurement is obtained to obtain an interval correction coefficient, and the on- vehicle device is mounted. A correction circuit is provided at the position to set the interval correction coefficient, and for the travel measurement after the correction section, the interval of each distance pulse is corrected by the interval correction coefficient, and the distance pulse of the previous measurement is corrected. Obtain each distance pulse corrected substantially the same as the interval
Te, and the corrected position detection data of the utility pole to each distance pulse the appended each measurement data and the utility pole number was collected by
Stored in to an external storage device, and, for the ground device,
Each of the plurality of electric pole detection data of the external storage device obtained by the respective traveling measurements of the electric inspection vehicle is processed,
The respective pole numbers for the respective traveling measurements are aligned at the same detection position, and the respective measurement data and the corrected
Chronological display method of the trolley wire measured data, characterized in that a ground treatment unit with a memory that together store and each distance pulse. 2. The method according to claim 1, wherein each of the measurement data for a plurality of required traveling measurements is selected from the memory, and each of the pole detection data having the same position, its pole number, and each distance pulse whose interval has been corrected are selected. 2. The time-series display method of trolley wire measurement data according to claim 1, wherein the data is recorded in parallel on a chart paper and displayed in a time-series manner.