JP3458053B2 - Trolley wire wear meter - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a trolley wire wear measuring device for measuring the remaining diameter of a trolley wire.

[0002]

2. Description of the Related Art Generally, trolley lines such as trains and bullet trains are
It wears out due to contact with the pantograph and becomes thinner. And when it becomes thinner than the specified value, it is necessary to replace it. Conventionally,
In order to measure the remaining diameter of this type of trolley wire, a skilled person visually identified the case where the wear was large, and performed the measurement using a micrometer.

[0003]

In the above-mentioned conventional method of measuring the remaining amount using the micrometer, it is difficult for a skilled person to specify the measurement point. Only an expert can correctly measure. It will be measured at points,
The wear tendency cannot be grasped. There is a problem. The present invention has been made in view of the above problems, and an object of the present invention is to provide a trolley wire wear measuring instrument that does not require skill in measurement and can know wear tendency and the like.

[0004]

A trolley wire wear measuring device according to claim 1 of the present application receives a parallel beam emitted from a light projecting portion to a trolley wire by a one-dimensional line sensor, and uses the trolley wire. Minimum value for measuring wire diameter
It has a mode and a confirmation mode.
Updates and holds the minimum measurement value in a fixed range and measures in confirmation mode
The value is based on the minimum value and the set value held in the minimum value mode.
If it is less than the specified value determined according to
I try to do my best.

In this trolley wire wear measuring device, the minimum value mode is
Mode updates the minimum measurement value within the specified range and
Then, the measured value and the minimum value + α in the minimum value mode
If it is smaller than the specified value in the comparison of the fixed value, that fact is output.
With, it is possible to specify a portion with a small diameter.

A trolley wire wear measuring instrument according to claim 2
Is a one-dimensional collimated beam emitted from the projection unit to the trolley wire.
For measuring the diameter of trolley wire by receiving light with a line sensor
In addition, a roller for moving along the trolley wire,
Check that the sliding surface of the trolley wire is in close contact with the roller of
And optical means for

[0007] In this trolley wire wear measuring device, the roller bets
It is possible to know the degree of adhesion of the roll wire to the sliding surface,
You can make good measurements.

[0008]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, the present invention will be described in more detail with reference to embodiments. First, the principle of the detection sensor used in the trolley wire wear measuring instrument of the first embodiment will be described. As shown in FIG. 1, the light emitted from the light emitting element 1 is converted into parallel light 4 by the lens 2 and is applied to the trolley wire 3. CC the parallel light 4 and the shadow blocked by the trolley wire 3
Light is received by a D (one-dimensional line sensor) 5, and the remaining diameter of the trolley wire 3 is measured from the length (width) of the shadow portion. Further, in order to move the sensor 10 along the trolley wire 3, rollers 11a and 11b are provided on both sides of the beam, and the rollers 11a and 11b are pushed and moved to the trolley wire 3. A view of the trolley wire 3 as seen from the side is shown in FIG.

FIG. 3 is a diagram showing an internal circuit configuration of the trolley wire wear measuring instrument according to the first embodiment of the present invention. This trolley wire wear measuring device comprises a light emitting element 1 and a lens 2 (light emitting element 1 and lens 2 which collimates light from the light emitting element 1 into parallel light 4).
And a CCD 5 for receiving the parallel light 4,
CCD drive circuit 6 for driving this CCD 5 and CCD 5
Of the output of the low-pass filter 7, an A / D converter 8 for converting the output of the low-pass filter 7 into a digital signal, and a signal from the A / D converter 8 It is provided with a CPU 9 for executing processing for measurement, a light emitting element drive circuit 12 for driving the light emitting element 1, an output circuit 13 for outputting a result of calculation processing by the CPU 9, a battery 14 and a power supply circuit 15. There is.

As shown in FIG. 4, the outer appearance of the trolley wire wear measuring instrument according to the first embodiment is such that, as shown in FIG. Tip 1
Light receiving parts are housed in the rollers 7, and rollers 11a, 1
The trolley wire 3 is brought into contact with 1b to perform the measurement. The battery 14 is housed in the lower handle portion 18. A display unit 20, a minimum value key 21, a confirmation key 22 and a current value key 23 are provided on the front panel 19 in the central portion.

When the trolley wire wear measuring device of the first embodiment is used, the rollers 11a and 11b are attached to the trolley wire 3.
, A fixed measurement range is moved along the trolley wire 3, and the measurement is performed sequentially in a fixed sampling cycle. Then, the minimum value of the measured values is saved and stored, and the measured value of this time and the minimum value up to that time are compared for each measurement, and if the measured value of this time is small, the measured value is updated and stored as the minimum value. To do. For example, as shown in FIG. 5A, assuming that the diameter of the trolley wire 3 is changed, the minimum value of the measured values is shown in FIG.
Is updated and stored as follows. This measurement process will be described with reference to the flowchart of FIG.

First, at the start of measurement, the variable i is set to 1 (step ST1), the measured value Di is obtained (ST2), and the variable i is 2
Whether or not it is determined (ST3). Initially, i = 1, so judgment N
It is O, and the measured value Di (D ₁ ) is stored as the minimum value D _min (ST4). After the storage, the variable i is incremented by 1 (ST7), the process returns to ST2, and the measured value D ₂ is obtained at the arrival of the next measurement. The next ST3 determination is i = 2, so Y
At ES, the process returns to ST5 and determines whether Di <D _min . That is, it is determined whether the measured value this time is smaller than the stored minimum value D _min (ST5). If the determination is NO, the variable i is only incremented by 1, and the process returns to ST2. For determination YES in ST5, that is, when the minimum value D _min less than the current measurement value Di is has been stored, and updated and stored current measurement value Di as a new minimum value D _min (ST6), variable i
Is incremented by 1, the process returns to ST2, and the next measurement time is awaited.

According to the processing of the trolley wire wear measuring instrument of the first embodiment, the most worn value (minimum diameter value), which is an important item in trolley wire wear measurement, is stored. You don't have to be careful. Also, since it is a hand-held type, it may not be able to hit the trolley wire vertically, but there is no measurement error due to camera shake. This is because the measured value will always increase if camera shake occurs.

As the processing of the trolley wire wear measuring instrument according to the second embodiment of the present invention, the measured value is compared with a preset specified value, and when the measured value is smaller than the specified value, an output to that effect,
For example, a function that sounds the buzzer and blinks the display is provided. This specified value can be changed. As shown in (a) of FIG. 7, assuming that the diameter of the trolley wire 3 is changing, the output indicating that is turned on during a period in which the diameter of the trolley wire 3 becomes smaller than a specified value. [(B) of FIG. 7]
reference〕. This measurement process will be further described with reference to the flowchart of FIG. The internal circuit configuration of the trolley wire wear measuring instrument according to the second embodiment is the same as that shown in FIG. The same applies to the other embodiments described below.

At the start of measurement, a preset setting value (specified value) C is read (ST11) and the variable i is set to 1 (ST12). Then, the measured value Di is obtained (ST1
3). It is determined whether this measured value Di is Di ≦ C (ST1
4). If the measured value Di is larger than the set value C, ST1
The variable Di is incremented by 1 with the judgment NO of 4 (ST
Only in 16), the process returns to ST13 and waits for the next measurement time. If the measured value Di is less than or equal to the set value C, the determination in ST14 is YES.
Then move to ST15 and output the output indicating that the measured value is below the specified value.
Let N. When the output is turned on, specifically, the buzzer sounds or the display blinks. Also, output O by communication means
The N signals may be transmitted to the data processing device. afterwards,
The variable i is incremented by 1 (ST16) and S
Return to T13. After that, the above process is repeated for each measurement.

According to the processing of the trolley wire wear measuring device of the second embodiment, usually, it may be confirmed whether the wear measurement of the trolley wire is smaller than the prescribed control value. In that case, the output It is only necessary to confirm the measured value when is turned on. Further, since the specified value can be changed, it is possible to set according to the purpose of measurement. As a trolley wire wear measuring instrument according to a third embodiment of the present invention, it has two modes of a minimum value mode and a confirmation mode. In the minimum value mode, the minimum value of the measured values in the measurement range (where the most wear occurs) When the measured value smaller than the held minimum value is obtained, the held minimum value is updated to the present measured value.

Further, in the confirmation mode, the minimum value + α held in the minimum value mode is set as a specified value, and when the measured value is smaller than the specified value, an output indicating that is output. This output is a buzzer, display, etc., as in the above. α is a settable offset value. As shown in FIG. 9, in the minimum value mode, the minimum value of the measured values is constantly updated and held, and when the confirmation mode is set, when the measured value becomes smaller than the held minimum value + α in that mode, an output indicating that fact is output. To give you the opportunity to confirm. This measurement process will be described with reference to the flowchart of FIG.

At the start of measurement, first, a variable i indicating the number of times of measurement is set to 1 (ST21), and it is determined whether the measurement mode is the minimum value mode or the confirmation mode (ST22). In the minimum value mode, the measured value Di is obtained (ST23), and it is determined whether the variable i is 2 or more (ST24). Initially i = 1, so judgment is NO
Then, in ST25, the measured value Di is stored as the minimum value D _min . Next, the variable i is incremented by 1 (ST2
8) Return to ST22. In the second and subsequent measurements, ST2
The judgment of 4 is YES, and the current measured value Di and the minimum value D
_min is compared (ST26), and when the measured value Di is larger this time, only the variable i is incremented by 1 in the determination NO of ST26 (ST28), and the process returns to ST22. If the measured value Di this time is smaller than the minimum storage value D _min , ST26
Is YES, the current measurement value Di is updated and stored as a new minimum value D _min (ST27), the variable i is incremented by 1 (ST28), and the process returns to ST22. In the minimum value mode, the processing of ST22 to ST28 described above is repeated.

When the confirmation mode is selected, ST22 returns S
The process moves to T29, and the measured value Di is calculated this time. And
This time, the measured value Di and the specified value D _min + α are compared (ST3
0), if the current measured value Di is large, the variable i is incremented by 1 only (ST32), and the process returns to ST29. If the measured value Di this time is smaller than the specified value, the output indicating that is turned on (ST31), the variable i is incremented by 1 (ST32), and the process returns to ST29.

According to the processing of the trolley wire wear measuring device of the third embodiment, the minimum value of the predetermined section of the trolley wire is obtained, and if the minimum value is larger than the specified value, the next section is moved to the specified value. If it is thin, to identify the thin point,
You can use the mode that outputs when the measured value is smaller than the specified value. As a trolley wire wear measuring instrument according to a fourth embodiment of the present invention, a minimum value of measured values in a measuring range is held,
When a measured value smaller than the held minimum value is obtained, the minimum value is updated and held, and when the updated value is held, an output indicating that is output. This output is also specifically a buzzer, display, etc. Here, the minimum value held when the new range is measured is cleared. FIG. 11 (a)
Assuming that the diameter of the trolley wire 3 is changing as shown in, the output indicating that is turned on every time when the minimum value is updated. [Refer to (b) of FIG. 11]. This measurement process will be further described with reference to the flowchart of FIG.

The processing of this embodiment is performed by ST41, ..., S
T46 corresponds to ST1, ..., ST6 in FIG. 6, and ST4
8 is the same as ST7 of FIG. 6, and ST47 is newly added in FIG. 12 as compared with FIG. That is, every time the measured value Di of this time is updated and stored as a new minimum value D _min in ST46, the output indicating that is turned ON in ST47.

According to the processing of the trolley wire wear measuring device of the fourth embodiment, since the most worn value, which is an important item in trolley wire wear measurement, is held, it is not necessary to pay attention to the measured value. , It is output when the minimum value is updated, so that the operator can recognize the point of great wear. Therefore, man-hours for identifying the place are unnecessary. As a trolley wire wear measuring instrument according to a fifth embodiment of the present invention, a rotary encoder is incorporated in rollers 11a and 11b for moving the sensor section of the measuring instrument along the trolley wire, and the roller encoder is provided based on the output of the rotary encoder. Find the amount of movement. Then, the minimum value for each specified interval (for example, 5 mm) is sequentially held in a storage device (for example, a memory card) or is output (for example, RS-232C), so that the wear state of the trolley wire (the relationship between the position and the remaining diameter). ) To save. As shown in FIG. 13, the measurement value changes randomly with the passage of the measurement time, that is, with the movement of the measurement position of the trolley wire, but the minimum value is obtained at each predetermined interval and held, so that it changes stepwise. The minimum value for each interval is saved. This measurement process is shown in the flow chart of FIG.
Further description will be made.

In the following description, j is a variable indicating the area No of each interval, i is a variable indicating the number of times of measurement, and L is a movement amount. When the operation starts, variables j and i are first
Is set to 1 (ST51, ST52). Next, the measured value Di
(D ₁ ) is calculated (ST53), and it is determined whether the variable i is 2 or more (ST54). Since i = 1 at the beginning, the determination N in ST54 is made.
With O, the measured value Di of this time is stored as the minimum value D _min (ST55), and the variable i is incremented by 1 (ST5).
8 ), it is determined whether the movement amount L has reached a specified value (ST5
9). Initially, this determination is NO, and the process returns to ST53,
Wait for the next measurement time. At the time of measurement, the measured value Di (D
₂ ) is required (ST53). Next, since i = 2, S
The determination in T54 is YES, and the current measurement value Di and the minimum value D _min are compared (ST56). As a result of the comparison, if the current measured value Di is large, the variable i is incremented by 1 (S
(T58), and returns to ST53 via ST59. After that,
ST53, ..., ST59 until the movement amount L reaches a specified value.
The process of is repeated.

When the movement amount L reaches the specified value, the minimum value for one interval j = 1 is obtained, and the minimum value D _min-1 is j.
= 1 and stored and held (ST60). Then, the variable j is incremented by 1 (ST61), the variable i is returned to 1 (ST52), and the measured value Di (D ₁ ) is obtained (ST5).
3). This measurement value is the first measurement value of the second interval, and thereafter, the processing of ST53, ..., ST59 is repeated to obtain the minimum value of the section, and when the section ends, j and the minimum value are determined. It is stored and stored (ST60), j is further incremented by 1 (ST61), and i is incremented by 1 in ST52.
Then, the minimum value will be obtained for the third interval thereafter. As described above, the measurement and holding of the minimum value for each interval are repeated.

According to the trolley wire wear measuring device of the fifth embodiment, since it is a hand-held type, a measurement error due to the inclination of the sensor occurs in each measurement. However, since the minimum measured value for each specified interval is held, the measurement error is eliminated. Also, wear of trolley wire (relationship between position and remaining diameter)
You can see how to lay the trolley wire, points to be noted, and the tendency of wear.

FIG. 15 is a schematic view showing a sensor portion of a trolley wire wear measuring instrument according to a sixth embodiment of the present invention. Here, an LED 31, a half mirror 32, a member 33 that guides light to the trolley wire 3 and guides reflected light, and a PSD 34 as a light receiving element are provided. Whether the sliding surface of the trolley wire is in close contact with the roller for moving the sensor along the trolley wire 3 by the optical device composed of these parts,
In other words, check if they are parallel. When the roller and the sliding surface are not inclined, the light emitted from the LED 31 to the trolley wire 3 through the half mirror 32 and the member 33 is reflected without inclination and enters the PSD 34 from the half mirror 32. However, if the sliding surface has an inclination, the reflected light from the trolley wire also has an inclination and enters the PSD 34. Therefore, it is possible to confirm the presence or absence of the inclination of the sliding surface from the PSD output. The measurement process of the trolley wire wear measuring instrument of this embodiment will be described with reference to the flowchart shown in FIG.

When the operation starts, the variable i is first set to 1 (ST71), then it is determined whether there is an inclination from the signal from the PSD 34. If there is an inclination, the inclination direction is displayed on the display unit. , ST72 (ST73).
When the measurer corrects the tilt angle by looking at this display and the tilt is eliminated, the determination in ST72 is NO, and the measured value Di is obtained (ST74). The subsequent processing is the same as in the case of FIG.

In the trolley wire wear measuring instrument of the sixth embodiment, by detecting the inclination of the sliding surface of the trolley wire, when the trolley wire is in close contact with the roller without inclination, correct data and inclination can be obtained. If not, it can be recognized as incorrect data, so only correct data can be processed. When they are not in close contact with each other, it is possible to know which one is tilted, and the message "I am leaning to the right" is displayed.

[0029]

EFFECT OF THE INVENTION Claim 1 of the present specification
According to the invention of claim 2, there are two modes , a minimum value mode and a confirmation mode.
Since it has a mode of
The minimum value in the minimum value mode
If the value is larger than the specified value, move the measurement to the next section and specify
If it is smaller than the value, move to the confirmation mode and measure smaller than the specified value.
By outputting when the value is a fixed value, thin points can be specified.
I can.

Further, according to the second aspect of the invention, the inclination of the sliding surface between the roller and the trolley wire is detected. Therefore, when there is no inclination, it means that the trolley wire is in close contact with the roller, which is correct. It is data, and when there is inclination, it means that it is not in close contact, and it can be recognized as erroneous data, so that it is possible to process with only correct data. Also, when they are not in close contact with each other, it is possible to know which one is tilted and display "I'm tilting to the right". Therefore, it is easy to correct the tilt properly.

[Brief description of drawings]

FIG. 1 is a schematic diagram for explaining the principle of a detection sensor used in a trolley wire wear measuring instrument according to a first embodiment of the present invention.

FIG. 2 is a view of the detection sensor seen from the side of a trolley wire.

FIG. 3 is a block diagram showing an internal configuration of the trolley wire wear measuring device according to the first embodiment.

4A and 4B are views showing the outer appearance of the trolley wire wear measuring device according to the first embodiment, wherein FIG. 4A is a front view and FIG. 4B is a side view.

FIG. 5 is a diagram illustrating holding of a minimum value with respect to a change in diameter of the trolley wire of the trolley wire wear measuring device according to the first embodiment.

FIG. 6 is a flow chart for explaining a measuring operation of the trolley wire wear measuring instrument according to the first embodiment.

FIG. 7 is a diagram illustrating an ON state of an output according to a change in diameter of the trolley wire of the trolley wire wear measuring instrument according to the second embodiment of the present invention.

FIG. 8 is a flow chart for explaining a measuring operation of the trolley wire wear measuring device according to the second embodiment.

FIG. 9 is a diagram for explaining holding of the minimum value of measured values and output ON with respect to a change in diameter of the trolley wire of the trolley wire wear measuring instrument according to the third embodiment of the present invention.

FIG. 10 is a flow chart for explaining a measuring operation of the trolley wire wear measuring instrument according to the third embodiment.

FIG. 11 is a diagram showing a change in diameter of the trolley wire of the trolley wire wear measuring instrument according to the fourth embodiment of the present invention, updating of the minimum value, and turning on of the output.
It is a figure explaining.

FIG. 12 is a flow chart for explaining a measuring operation of the trolley wire wear measuring device according to the fourth embodiment.

FIG. 13 is a diagram illustrating movement of the measuring device of the trolley wire wear measuring device according to the fifth embodiment of the present invention and holding of a minimum value of measured values at predetermined intervals.

FIG. 14 is a flowchart for explaining the measuring operation of the trolley wire wear measuring instrument according to the fifth embodiment.

FIG. 15 is a schematic view showing a trolley wire wear detection sensor of a trolley wire wear measuring instrument according to a sixth embodiment of the present invention.

FIG. 16 is a flowchart for explaining the measuring operation of the trolley wire wear measuring instrument of the sixth embodiment.

[Explanation of symbols]

1 Light emitting element 2 lens 3 trolley wire 4 parallel light 5 CCD 7 LPF 8 A / D converter 9 CPU 11a, 11b rollers 12 Light emitting element drive circuit 13 Output circuit 14 batteries 15 power supply circuit

─────────────────────────────────────────────────── ─── Continuation of the front page (72) Dai Amano, 1-4, Mei Station, Nakamura-ku, Nagoya City Tokai Passenger Railway Co., Ltd. (72) Hiroyuki Endo, 1-1, Mei Station, Nakamura-ku, Nagoya No. 4 Tokai Passenger Railway Co., Ltd. (72) Inventor Hiroaki Takimasa, No. 10 Hanazono Dodo-cho, Ukyo-ku, Kyoto-shi, Kyoto Prefecture Omron Co., Ltd. (72) Inventor Michitoshi Okada 10 Hanazono-do-cho, Ukyo-ku, Kyoto Prefecture Address Omron Co., Ltd. (72) Inventor, Yoshida Fussa, No. 10 Hanazono Todocho, Ukyo-ku, Kyoto Prefecture Kyoto Prefecture Omron Co., Ltd. (72) Inventor, Michiaki Watanabe No. 10 Hanazono Todo-cho, Kyoto City, Kyoto Omron Co., Ltd. (56) References JP-A-7-286846 (JP, A) Actual development 1-99010 (JP, U) (58) Fields investigated (Int.Cl. ⁷ , DB name) G01B 11 / 00-11 / 30 G01B 21/00-21/32 B60M 1/28 H02G 1/00-1/16

Claims (2)

(57) [Claims] 1. A trolley wire wear measuring instrument for measuring a diameter of a trolley wire by receiving a parallel beam emitted from a light projecting portion onto the trolley wire by a one-dimensional line sensor, and having a minimum value mode and a confirmation mode, In the minimum value mode, the measured minimum value in the specified measurement range is updated and held, and in the confirmation mode, when the measured value is smaller than the minimum value held in the minimum value mode and the specified value determined based on the set value, that fact is notified. The trolley wire wear measuring instrument is characterized in that it is configured to output a notification. 2. A trolley wire wear measuring device for measuring a diameter of a trolley wire by receiving a parallel beam emitted from a light projecting portion to the trolley wire by a roller for moving along the trolley wire. A trolley wire wear measuring instrument, comprising: an optical means for checking whether or not the sliding surface of the trolley wire is in close contact with the roller.