JP2008102112A - Consumption amount calculation method of trolley line tilting part - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a high-speed reliable method suitable for on-line processing between a measured field and a server via a mobile device such as a cellular phone, in calculation by image processing by a camera or the like used for consumption amount diagnosis regardless of the tilting angle of a curve part of a trolley wire. <P>SOLUTION: In this method, a digital angle gauge is used for accurately photographing the consumption amount of the trolley wire from the ground, heads are attached to the ends of the supporting legs of the camera or the like, and a plate for facilitating the movement of the supporting legs is lain on the ground. A high-speed arithmetic means photographs a target part of the trolley wire twice at elevation angles θ1 and θ2 from the ground with respect to 45° as the axis of symmetry, finds a Δθ elimination method from a trigonometric function so that it is not related to the tilting angle Δθ of the trolley wire itself, uses the Internet from the measured field with the mobile device such as the cellular phone, and determines wire height H reducing from the wire diameter by the consumption. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

The present invention relates to a calculation method for calculating a consumption amount to be used for image processing after photographing from the ground with a trolley wire consumption amount several meters apart, using a camera or a video.

When the wear surface of the trolley wire is not parallel to the ground and is inclined by Δθ, the wear surface wear amount from ground photography was calculated using a complicated calculation formula. A large number of programming languages are required, and online processing from a mobile phone on the Internet takes time, and convenience is poor.

The wire height H can be calculated regardless of the speed of online calculation using the communication line when calculating the consumption amount by image processing after photographing the trolley wire and the inclination Δθ of the wire.

The same point on the trolley line symmetry point was photographed twice from the ground and the angle was θ1 and θ2 twice, and a method that can eliminate the inclination Δθ of the trolley line itself from these equations of the trigonometric function was found. . The consumption amount can be calculated at high speed with or without the inclination Δθ. At this time, θ1 and θ2 are angles that make 45 degrees symmetrical. For example, two shootings are performed such as θ1 = 50 degrees and θ2 = 40 degrees.

  Conventionally, the number of calculation formulas has been reduced to about 1/5, so on-line computation processing has also become faster, and from a measurement site, data input and calculation results on a mobile phone can be done in one place in about one minute. It is a calculation time for the amount of consumption, and can be sufficiently put into practical use.

Invention location

Measurement method to apply for invention

At the inclination Δθ angle of the trolley line itself, the target measurement point is made 45 degrees symmetrical, and the elevation angle from the ground is measured twice, that is, the angle θ1 degree and θ2 degree. For example, as shown in “FIG. 1” of “Document Name”, for example, θ1 = 50 degrees and θ2 = 40 degrees are symmetric about 45 degrees, and the measurement is performed twice. The angle measurement at this time is digitally displayed, and the display is with a hold. The camera support stand such as a tripod at the time of shooting is equipped with a frame that can move smoothly on the ground, the moving width of the frame is 60 cm, the moving distance is 220 cm, and the area of this 60 × 220 square centimeter is 3 mm thick A 5 mm aluminum plate, a wooden plate, or a plastic plate is laid on the ground so that the angular movement is smooth.

Calculation method for invention application

  The wire height on the image after shooting from the first θ1 angle is MSH1 [mm], the width on the image when the wear surface is viewed from the θ1 angle is MSW1 [mm], and the second θ2 angle is When the wire height, MSH2 [mm] and wear width are MSW2 [mm], the wire height viewed from the horizontal direction is

大地面から垂直に見上げて、電線の摩擦面を、それぞれ

Looking up vertically from the ground, the friction surface of the wire

画像上の１回目処理の電線直径ＭＤ１，２回目処理の電線直径ＭＤ２は、

The wire diameter MD1 of the first processing on the image, the wire diameter MD2 of the first processing,

１回目の画像の直径ＭＤ１は、実直径Ｄｉａに対する倍率Ｍｂａｉ１は、同様に、２回目の倍率Ｍｂａｉ２は、

The diameter MD1 of the first image is the same as the magnification Mbai1 with respect to the actual diameter Dia. Similarly, the second magnification Mbai2 is

画像を電線上に縮小した電線高さのθ１から見たＳＨ１，θ２から見たＳＨ２は、

SH2 viewed from θ1 and θ2 of the height of the electric wire when the image is reduced on the electric wire,

画像から，電線サイズに縮小した、θ１、θ２から見た摩擦面ＳＷ１、ＳＷ２は

From the image, the friction surfaces SW1 and SW2 as seen from θ1 and θ2 reduced to the wire size are

倍率を１回目に揃える為、２回目もＭｂａｉ１で除算する。

In order to align the magnification for the first time, the second time is also divided by Mbai1.

これらから、電線の真の高さＨ［ｍｍ］を計算する。

From these, the true height H [mm] of the electric wire is calculated.

Invention creation ceremony

後述の「数１３」の▲３▼式と「数１４」の▲６▼式とが等しいので、Δθが消去され、電車レールの勾配箇所の電車線の傾きΔθに関係なく、「数１５」の▲７▼式から、電線高さＨが求まる。導出過程は、｛数１６」、｛数１７」に至り、本発明として、申請する、この式を創作した。
消耗した高さΔｄ［ｍｍ］は

Since equation (3) of “Equation 13” and equation (6) of “Equation 14” described later are equal, Δθ is eliminated, and “Equation 15” is applied regardless of the inclination Δθ of the train line at the gradient portion of the train rail. From the formula (7), the wire height H can be obtained. The derivation process leads to {Equation 16}, {Equation 17}, and created this equation to be applied as the present invention.
The consumed height Δd [mm] is

Derivation process of creative expression

Equation 11

From the image, the wire height in the θ1 direction reduced to the wire size is SH1, the height when viewed from the horizontal direction is H [mm], the wear surface width at that angle is SW1, and the height when viewed from the vertical direction is W [ mm], similarly, the case of the θ2 direction is represented by SH2, H, SW2, and W.

る
Ｄ＝電線直径Ｄｉａ［ｍｍ］
Ｈ＝電線高さで、摩耗により電線高さは、Ｄより小さくなる。
Ｗ＝電線を大地から上空に向かって垂直に見た電線の摩耗幅
単位は［ｍｍ］

D = Wire diameter Dia [mm]
H = wire height, and the wire height becomes smaller than D due to wear.
W = Wear width of the electric wire when the electric wire is viewed vertically from the ground to the sky The unit is [mm]

The relationship between the elevation angle θ [degree] and the wire height H [mm] when viewing the trolley wire in the sky from the ground is shown. It can be seen that the amplitude of H around 45 degrees is symmetric.

Claims (2)

The diagnostic part of the trolley wire is photographed with a camera or a video at an angle of symmetry of 45 degrees with the angle of elevation from the ground as 45 degrees. At this time, the angle measurement is digitally displayed and has a hold. The camera support stand such as a tripod at the time of shooting is equipped with a frame that can move smoothly on the ground, the moving width of the frame is 60 cm, the moving distance is 220 cm, and the area of this 60 × 220 square centimeter is 3 mm thick From this, a 5 mm aluminum plate, a wooden plate, or a plastic plate is laid on the ground so that the angular movement is smooth. The trolley wire has no relation to the inclination Δθ angle of the trolley wire itself from the two times of imaging of θ1 and θ2 with the elevation angle being 45 degrees and the axis of symmetry, the wire height after image processing, the width of the friction consumable surface, and the wire diameter. The above-described Δθ elimination method from the triangular function and the present calculation method suitable for high-speed calculation with a small number of calculation formulas are included in the scope.

Images