JP3186802B2 - Lighting measurement method and photometric vehicle - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an illumination measuring method for a lighting device arranged at a predetermined interval and a photometric vehicle.

[0002]

2. Description of the Related Art As a conventional method for measuring the illumination of airport lights such as runway lights and centerline lights which are arranged at predetermined intervals on a runway, for example, the entire airport is divided into, for example, four blocks, and Then, a plurality of lighting devices are removed from the installation location, and the illuminance of each lighting device is inspected by a dedicated lighting measuring device by a five-point method or the like, and is returned to the original state. And this inspection is done by International Civil Aviation Organization (ICAO)
According to the guidelines specified in the above, it is necessary to carry out at least once every three months.

[0003]

However, when the runway light, the centerline light, etc. are removed as described above, 4000
Lighting devices must be removed from a wide range of runways of m or more, which is troublesome.In addition, since lighting devices that do not have any problems are removed, wasteful inspection time is spent and measurement efficiency is low. ing.

[0004] The present invention has been made in view of the above problems, and has as its object to provide a lighting measurement method and a photometric vehicle capable of performing inspection efficiently with a simple operation.

[0005]

According to a first aspect of the present invention, there is provided an illumination measuring method which is arranged at a predetermined interval, and moves along a plurality of illuminating devices for irradiating symmetrical light in the front-rear direction. Detecting the position of each lighting device based on a change in the light output in the front direction; measuring the forward movement distance; and when the light output of the lighting device to be detected is equal to or less than a predetermined value.
Estimating the position of the undetectable lighting device based on the measured moving distance and the arrangement interval distance of the plurality of lighting devices;
Moving forward from the detected or estimated position of the lighting device; measuring a forward moving distance; after moving forward by a preset predetermined distance, illuminance toward the front of the lighting device to be detected And a step of measuring.

According to a second aspect of the present invention, there is provided a photometric vehicle, which is disposed at a predetermined distance from a vehicle main body; A light receiver attached to the vehicle body so as to receive the illuminated light; and detecting a position of each lighting device based on a change in light output accompanying the movement of the vehicle body in the front direction of the lighting device received by the light receiver. Position detecting means; distance measuring means for measuring a moving distance; when the light output of the lighting device to be detected is equal to or less than a predetermined value, detection is impossible based on the measured moving distance and the distance between the plurality of lighting devices. Position estimating means for estimating the position of the lighting device; an illuminometer mounted on the vehicle body so as to measure the illuminance toward the front of the lighting device;
On the basis of the position of each lighting device detected by the position detecting means and the moving distance measured by the distance measuring means, the illuminance toward the front of the lighting device at a predetermined distance ahead of the position of each lighting device is determined. Control means for making a measurement with a meter .

[0007]

According to the illumination measuring method of the present invention, the position of each lighting device is detected based on a change in the light output in the front direction of each lighting device while moving along the plurality of lighting devices, and the position of the lighting device to be detected is detected. By moving from the near side to the front and measuring the illuminance to the front of the lighting device at the moved location with an illuminometer, it is possible to easily and efficiently illuminate simply by moving, without removing the lighting device Measure the illuminance of the device. In addition, when the light output of the lighting device to be detected is equal to or less than a predetermined value, the position of the undetectable lighting device is estimated based on the measured moving distance and the arrangement distance of the plurality of lighting devices. Even if some of the devices are not lit, the individual lighting devices can be managed.

According to a second aspect of the present invention, a photometric vehicle receives light in the forward direction of the illuminating device by a photodetector attached to the vehicle body while moving along a plurality of illuminating devices, and outputs light by a position detecting means. When the position of each lighting device is detected by the change, the control means detects the position of the lighting device by the position detecting means, measures the moving distance by the distance measuring means, and sets the lighting device at a predetermined distance ahead of the position of the lighting device. By using an illuminometer attached to the vehicle body to measure the illuminance toward the front of the vehicle, the illuminance of the illuminating device can be easily and efficiently measured only by the moving operation without removing the illuminating device. Further, when the light output of the illumination device to be detected is equal to or less than a predetermined value,
By estimating the position of an undetectable lighting device based on the measured moving distance and the arrangement interval distance of the plurality of lighting devices, even if some of the lighting devices are unlit, Of the lighting device can be managed .

[0009]

An embodiment of the present invention will be described below with reference to the drawings.

First, the aeronautical light metering vehicle 1 will be described with reference to FIG. In the aeronautical light metering vehicle 1, a steering wheel 2 is mounted on the right side of the center of the vehicle body of a right-hand drive wagon 1a as a vehicle body, and a driver's seat 3 is provided facing the steering wheel 2. Also,
A personal computer 4 as control means also serving as a position estimating means is mounted in a passenger seat portion on the left side of the center of the vehicle body, and a measurer's seat 5 is provided behind the personal computer 4. Further, a multi-channel digital waveform recording device 6, a measurement control panel 7, and a printer 8 are mounted behind the driver's seat 3 and near the operator's seat 5. Further, an interface panel 9 is mounted on a rear portion of the vehicle.

A plurality of luminance meters 11 as light receivers are mounted on a front surface of the aeronautical light metering vehicle 1 at a mounting portion 12 which is mounted to protrude forward of the bumper. A plurality of illuminometers 14 are mounted on the frame 15. During measurement, the luminance meter 11 and the illuminance meter 14 are centered on the substantially extended line of the steering wheel 2 along the traveling direction, as shown in FIGS. ing. In addition, it is positioned slightly below the vehicle in consideration of the irradiation angle of the lighting device.

However, if the photodetector group 13 is displaced to the right of the vehicle, the center of the vehicle and the center of the photodetector group 13 are different. The group 13 hits the garage G or the like. Further, since the photodetector group 13 protrudes downward from the vehicle, as shown in FIG. 7, the lower part of the photodetector group 13 is brought into contact with the road surface when traveling on a slope,
The light receiver group 13 may be damaged.

For this reason, a rail (not shown) is attached to the frame 15 of the photodetector group 13, and the frame 15 is slid on the rail so as to be movable in the vertical and horizontal directions. Different from the position of the photodetector group 13 at the time,
As shown in FIG. 5, the aeronautical light metering vehicle 1 is located at the central storage position of the vehicle. In addition, stoppers are provided corresponding to the position at the time of measurement and the storage position at the time of non-measurement, so that the frame 15 can be automatically positioned.
The movement of the frame 15 may be automatically moved by hydraulic pressure or the like.

On the other hand, the photometric work needs to be performed at night in consideration of the influence of external light and the operation of the aircraft. For this reason,
In the case of the runway centerline light RC, which is a recessed lighting device, the aeronautical light metering car 1 measures while riding over the runway centerline light RC, so that the headlights of the aeronautical light metering car 1 are not turned on. Although it is possible to run a straight line to some extent by relying on the light of the runway centerline light RC itself, in the case of a ground-type runway light RW protruding from the ground surface, the aeronautical light metering car 1 contacts the runway light RW. It is necessary to travel a long distance away from the vehicle, and it is necessary to turn on the headlights of the aeronautical light metering vehicle 1. Therefore, in consideration of the influence of noise due to the reflection of the headlight from the runway, the light receiver group 13 is installed on the rear surface of the aircraft light photometer vehicle 1.

Also, since it is very difficult to align the right above the runway centerline lamp RC with the center of the aeronautical light metering vehicle 1, a luminance meter is provided substantially on the extension of the steering wheel 2 along the traveling direction. The centers of 11 and 14 are offset.

Further, the aeronautical light metering vehicle 1 calculates a traveling distance by using a speed pulse output to a speedometer of the vehicle, which is output according to the rotation speed of the shaft.

Next, the luminance meter 11 will be described. The luminance meter 11 has four luminance sensors 11a, 11b, 11c, 11d made of, for example, silicon (Si) elements. The brightness sensors 11a and 11d are connected to the right and left runway lights RW, respectively.
The center of the optical axis on the near side of is detected, and the central luminance sensor 11c,
11b detects the light emitting portion on the near side of the runway centerline light RC.

Also, an embedded lighting device such as a runway centerline lamp RC or a taxiway centerline lamp (not shown) irradiates light only in a range of approximately 0 ° to 10 ° including the sub beam column range. Because it is designed, to detect the optical axis, aim in front of the traveling direction that is the optical axis direction, and
It is necessary to aim at the angle at which light is emitted. On the other hand, from the viewpoint of detecting the starting point of the distance, the larger the aiming angle is, the smaller the error due to the vertical vibration of the aircraft light photometer vehicle 1 can be. That is, in extreme considerations, if aiming can be performed from directly above the runway centerline light RC, the error can be minimized. Therefore, as a harmony point of the conflicting conditions, the brightness sensors 11b and 11c
Is set substantially at the center of the extension of the steering wheel 2 along the traveling direction, and the basic design values of the aiming angle are 0 ° horizontal angle and 15 ° vertical angle. Note that the brightness sensor
11b and 11c are installed on a fine movement table (not shown) to make the aiming angle movable.

Further, in order to detect light from a terrestrial lighting device such as a runway light RW, it is necessary to detect light from a traveling direction which is an optical axis direction.
It is desirable to aim from the direction deviated by degrees,
Considering the error of the distance detection due to the lateral movement of the aeronautical light metering vehicle 1 and the fact that the runway light RW irradiates a relatively wide range of light, the detection can be performed even if the angle is set to be slightly wider. Therefore, the luminance sensors 11a and 11d are disposed on both sides of the luminance sensors 11b and 11c in order to detect the runway light RW in either the left or right direction, and the basic design value of the aiming angle is set to a horizontal angle of 34 degrees and a vertical The angle is 10 degrees. In addition,
Similarly to the luminance sensors 11b and 11c, the luminance sensors 11a and 11d are installed on a fine movement table (not shown), and the aiming angle is movable.

Reference numeral 11e denotes a light-emitting portion of a terrestrial lamp, one end of which is formed in a substantially spherical prism as shown in FIGS. FIG. 11 shows this light-emitting unit as viewed from the luminance sensor. The luminance sensor has an elongated rectangular aperture 11f attached to the front surface.

The output waveforms from the brightness sensors 11a, 11b, 11c, 11d are based on the installation positions of the brightness sensors 11a, 11b, 11c, 11d,
It greatly affects distance detection together with the aiming angle.
This output waveform is mainly determined by the brightness when viewed from the aiming direction of the lighting device, the light emitting area, the speed of the vehicle, and the solid angle of the aperture which is the measured solid angle of the brightness sensors 11a, 11b, 11c, 11d. Also, a brightness sensor
The greater the output from 11a, 11b, 11c, 11d, the easier the detection of the illuminating device, and the sharper the waveform, the smaller the error in distance detection. Since the luminance meter has a structure in which the brightness of the image in the aperture 11f formed on the silicon element is averaged in the aperture 11f, in order to increase the output, the area ratio to the emission area of the lighting device is The waveform needs to be as small as possible, and the waveform can be sharpened by reducing the area ratio to the light emitting area of the lighting device. However, if the area of the aperture 11f is reduced, the light of the lighting device may not be able to be picked up when the aeronautical light metering vehicle 1 is shaken right and left.

Therefore, in consideration of the sharpness of the waveform and read-out of light, errors in distance detection are minimized for an embedded lighting device such as a runway centerline lamp RC or a taxiway centerline lamp (not shown). Therefore, the length of the aperture 11f with respect to the traveling direction of the aeronautical light metering car 1 is minimized, and the aperture 11 is arranged in a horizontal direction so that the light of the lighting device can be picked up even if the aeronautical light metering car 1 is slightly shifted left and right. The longitudinal direction is provided to maximize the length of the aperture of the aeronautical light metering vehicle 1 in the left-right direction. On the other hand, for a ground-type lighting device such as a runway light RW, the length of the aperture 11f in the left-right direction is minimized to minimize the error in distance detection, and the aeronautical light metering vehicle 1 vibrates up and down. Even so, the aperture 11f is arranged in the longitudinal direction in the height direction so that the light of the lighting device can be picked up, and the length of the aperture 11f in the height direction of the aeronautical light metering vehicle 1 is maximized.

Next, the viewing angle in the short side direction of the aperture 11f will be considered. To determine the viewing angle in the short side direction of the aperture 11f, ensuring a width that can sample the analog output of the luminance sensor 11a, 11b, 11c, 11d, and,
It is necessary to narrow the width of the waveform so that the position detection error of the lighting device can be minimized, but they are contradictory, so the width that can sample the analog output of the luminance sensors 11a, 11b, 11c, 11d And the conditions for ensuring that the position detection error of the lighting device is within 50 mm.

An aperture 11 having a viewing angle of 0.2 °
f, the output waveform from the brightness sensor using the aperture 11f having a viewing angle of 1 ° and the aperture 11f having a viewing angle of 2 °,
This will be described with reference to FIGS. The width of the output waveform is 50 to 100 mm in distance and 6 to 1 in time for the aperture 11f having a viewing angle of 0.2 ° shown in FIG.
In the case of an aperture 11f having a viewing angle of 2 ° and a viewing angle of 1 ° shown in FIG. 16, an aperture 11f having a viewing angle of 100 ° to 200 mm, a time of 12 to 24 ms, and a viewing angle of 2 ° shown in FIG.
In the case of, the distance is 200 to 300 mm and the time is 2
4 to 36 ms. 12 to 14 show the case where the vertical axis represents the luminance [nt], the horizontal axis represents the moving distance [mm] of the luminance sensors 11a, 11b, 11c, and 11d, and the aeronautical light metering vehicle 1 runs at 30 km / h. Shows the travel time [msec].

According to the experimental results shown in FIGS.
In the case of the aperture 11f whose viewing angle is 2 ° shown in FIG. 14, since the change in luminance is smooth, it is very difficult to determine the center of the lighting device. On the other hand, in the case of the aperture 11f having a viewing angle of 0.2 ° shown in FIG. 12, although the center of the lighting device can be easily determined, the sharpness is too high and the center may be overlooked. The viewing angle is 1
In the case of the degree aperture 11f, it is somewhat difficult to determine the center of the lighting device because the sharpness is slightly low. Therefore, it is considered that the viewing angle of the aperture 11f is preferably about 0.5 °.

The aiming angles of the luminance sensors 11a, 11b, 11c, 11d are set to be larger than the optical axis of the runway centerline lamp RC. Normally, the optical axis of the runway centerline light RC is around 3.6 ° in accordance with the landing angle of the aircraft, so if you measure at this aiming angle of around 3.6 °, the highest output will be obtained. Should be obtained.

However, if the vehicle of the aeronautical light metering vehicle 1 vibrates up and down in a state where the aiming angle is small, the error becomes very large. That is, as shown in FIG. 17, when the height h of the luminance sensor 11a is the aiming angle θ, the luminance sensor 11a is displaced upward or downward by Δh due to the vertical vibration of the vehicle of the aircraft light metering vehicle 1, and the luminance sensor 11au , 11a
Suppose it is located at d.

In this case, the displaced luminance sensors 11au, 11ad
In the position of, the error Δε of the distance to the runway centerline lamp RC with respect to the position of the regular luminance sensor 11a is Δε = Δh / tanθ, and the true value E of the illuminance of the runway centerline lamp RC is E = Iθcos ³ θ / d ² Therefore, the erroneous measurement value Ee of the illuminance at the displaced positions of the luminance sensors 11au and 11ad is Ee = Iθcos ³ θ / (d + Δε) ² , and the illuminance error Ea is Becomes Here, Δh = 30 mm, d = 5000 mm, θ =
When 5 °, Δε = 342.9mm, and the error Ea illuminance position displaced brightness sensor 11au is - of 12%.

On the other hand, when θ is set to 15 °, Δε = 11
Since the 2.0 mm, error Ea of illuminance, - it is 4%.

Therefore, in order to keep the measurement accuracy within ± 5%, the angle of the optical axis of the runway centerline lamp RC should be 10 ° to 3.6 °.
It is necessary to aim at an angle of about 15 ° with the addition of °.

The angle of the optical axis of the runway centerline lamp RC is 5 °.
In the case of general non, from the above ^{equation, d 2 / {d + Δh} / tanθ) 2} - such that 1 ≦ 0.05, by setting the aiming angle theta, the error of the illuminance suppressed to 5% or less be able to.

Next, the photodetector group 13 will be described with reference to FIG. The frame 15 for moving measurement is
15a, a parallel 3 connected vertically to this upper horizontal bar 15a
An E-shaped part consisting of a left vertical bar 15b, a central vertical bar 15c and a right vertical bar 15d, and a lower side parallel to the upper horizontal bar 15a below the E-shaped part. It is formed of an I-shaped portion consisting of a bar 15e. By moving the horizontal bar (not shown) up and down in seven steps, the static measurement device can measure a horizontal angle of ± 10 ° and a vertical angle of 2 ° to 8 ° at a photometric distance of 5 m. I have. Further, eleven illuminometers are arranged in the horizontal bar at equal intervals in the horizontal bar.

In addition, by moving the vehicle, the horizontal angle of the illuminating device can be measured at 360 °, and the vertical angle varies from the maximum of 81 ° to 0 ° at maximum depending on the outer diameter of the illuminating device. Measurement is possible down to °.

An illuminometer L is sequentially arranged on the left vertical bar 15b from the upper side.
7, L16, L14, L4, L12, L10 are attached, and the central vertical bar 15c
The illuminance meters L8 and L5 are attached sequentially from the top, and the illuminance meters L9, L17, L15, L6, L13, and L11 are sequentially attached to the right vertical bar 15d from the top.
Illuminometers L1, L18, L19, L20, L2, L21, L22, L23, L3 are sequentially attached to the lower horizontal bar 15e from the left, and each illuminometer L1 to L23 is in the direction of the arrow. The vertical bar 15b on the left side and the vertical bar 15d on the right side can be moved in the center direction respectively by 50 mm.

In the case of moving measurement in which photometry is performed while moving the aeronautical light metering vehicle 1, the illuminance meters L1, L2, L3, L4, L5, L
Runway centerline lamp RC at 6, L7, L8, L9, illuminance meters L1, L10, L12, L
4, L14, L16, L7 left-side ground runway light RW, illuminance meter L
3, L11, L13, L6, L15, L17, L9, right side ground runway light R
W, the photometer of the taxiway centerline lamp is measured by the illuminometers L1, L18, L19, L20, L2, L21, L22, L23, L3.

Further, in the case of stationary measurement in which the photometer 1 is stopped to perform photometry, the illuminometers L1, L18, L19, L20, L2,
At L21, L22, L23, L3, runway end light, runway end auxiliary light, recessed runway light, ground runway light, runway centerline light, grounding zone light, highway departure taxiway centerline light or Photometry of taxiway centerline lamp.

The photometric system will be described with reference to a block diagram shown in FIG.

In FIG. 19, reference numeral 21 denotes a measurement controller having a function as a position detecting means. This measurement controller 21 performs measurement control such as selection and range switching of the luminance meter 11 and the illuminance meter 14 and generation of a data sampling trigger. , A light emitting diode 22, a switch 23, and a display 24 are mounted and connected to an AC power supply via a rectifying diode. Each of the illuminometers L1 to L23 has a different response time between moving measurement and stationary measurement in order to increase the reliability of each data.

Further, the measurement controller 21 receives light from the luminance sensors 11a, 11b, 11c, and 11d in advance so that the output of the illuminance does not change depending on the light color of the illumination device that receives light from the luminance sensors 11a, 11b, 11c, and 11d. The light color of the lighting device to be set, that is, white, yellow, red, etc. is set in advance, and the brightness sensor 11a,
The range of light reception of 11b, 11c, and 11d is changed. Similarly, the light receiving ranges of the illuminometers L1 to L23 are changed.

The light receiving ranges of the luminance sensors 11a, 11b, 11c, 11d and the light receiving ranges of the illuminometers L1 to L23 may be changed in conjunction with each other, or may be individually changed by a switching operation or the like. May be set to change.

Further, as shown in Table 1, the measurement controller 21 may be capable of performing an analog output.

Even if the analog output voltage range of the illuminometer 14 is the same, if the illuminometer 14 has a different illuminance range, the illuminance will be different. Therefore, not only the illuminance from the illuminating device but also the range data, the number of the illuminating device, the measurement point number, the illuminating device state, the measurement data state, the measurement data such as the distance data, and the like are output as analog outputs.

[0043]

[Table 1]

The numbers 1 to 999 of the lighting fixtures are represented by three digits of analog, the point numbers 1 to 12 are represented by two digits of analog, and the ranges 1 to 5 are represented by one digit of analog.

As described above, by making the measurement data an analog output, the management analysis of the measurement data can be easily performed.

Further, the light color of each lighting device may be inputted to the personal computer 4 together with the arrangement of the lighting devices in advance, and may be automatically changed.

Further, the interface panel 9 is connected to the measurement controller 21. The interface panel 9 interfaces the luminance meter 11 and the illuminometer 14 with other devices, and includes three interfaces 27, 28,
The illuminometer 14 for moving measurement is connected to the interface 27, the illuminometer 14 for static measurement is connected to the interface 28, the luminance meter 11 is connected to the interface 29, and each interface 27,28,29
Is connected to an AC power supply via diodes 31, 32, 33 and 34. The interface 27 and the measurement controller 21 are connected to the illuminometer 14 for movement measurement via the input unit 36.
Is connected to an analyzing recorder main body 37 which digitizes and stores the analog output and the attached data.

Further, a horizontal bar drive control unit for stationary measurement
41 is installed. The horizontal bar drive control unit 41 includes a power operation panel 42, a start / stop panel 43,
Lifting operation panel 44, resistor 45, resistor 46, transistor 47,
A drive unit 51 including a resistor 48, a resistor 49, a transistor 50, and the like is connected. The driving section 51 is connected to a horizontal bar motor 53 via a control section 52. The control unit 52
Is driven by a 12V automobile battery or the like. Further, a sensor 54 that detects the level of the horizontal bar and outputs a position signal is connected.

A vehicle speed sensor 55 for outputting a pulse output from an encoder provided on the shaft of the aeronautical light metering vehicle 1 is connected.

Further, an extension unit 61 is connected to the personal computer 4. The expansion unit 61 includes an interface board 62 for taking in data from the analyzing recorder body 37, an I / O port 63 for sending a range signal to the illuminometer 14 for static measurement, and an analog output of the illuminometer 14 for static measurement. An A / D converter 64 for performing analog / digital conversion is provided.

Further, the personal computer 4 and the printer 8 are connected to the measurement controller 21.

Next, the basic operation at the time of movement measurement in the above embodiment will be described with reference to FIG.

First, control parameters such as array data of the lighting device, measurement timing, the number of measurement data, an analog threshold level for detecting the position of the lighting device, and measurement data are transferred from the personal computer 4 to the measurement controller 21. These control parameters are stored in the personal computer 4 in an adjustable state, for example, on a flexible disk, and can be easily edited as a database for later processing or measurement under different conditions.

The measurement controller 21 selects the luminance meter 11 and the illuminometer 14 to be used based on the type of the illumination device to be measured measured by the personal computer 4.

The aeronautical light metering car 1 is driven, and a start button is pressed immediately before the lighting device for which measurement is to be started, and a start signal is output.

When the luminance meter 11 detects light from the first illumination device, the measurement controller 21 measures the vehicle speed pulse from the vehicle speed sensor 55 based on the output from the luminance meter 11, and detects the optical axis of the illumination device. Then, the vehicle speed pulse weight point from when the vehicle passes just above the lighting device is measured. In addition,
Since a single vehicle speed pulse is output at about 10 cm, in the case of 2.5 m shown in FIG. 1, about 25 pulses are measured.

When the vehicle speed pulse weight point measures about 25 shots, that is, reaches the value set by the personal computer 4, the measurement controller 21 again sends the vehicle speed sensor 55
Vehicle speed pulse measurement point N from when the illuminometer 14 reaches the measurement point from just above the lighting device
Measurements up to 1, N2, ..., N12 are started.

When the measured value reaches a set value corresponding to the illuminance measurement point set by the personal computer 4, as shown in FIG.
Reference numeral 21 sends six trigger pulses to the analyzing recorder body 37 at 1.67 msec intervals, and after sending the sixth pulse, sends a range signal for measurement at the next point to the illuminometer 14. . In addition, when the phase of AC is controlled,
Alternatively, in the case of a pulsating flow, the blinking cycle is, for example, 10 msec.
Therefore, the illuminance value differs depending on the measurement time. Therefore,
An average value is sampled by averaging data obtained by transmitting several trigger pulses during 10 msec.

The analyzing recorder body 37 that has received the trigger pulse converts the data stored in the measurement controller 21 into digital-to-analog data in the measurement controller 21 in addition to the analog outputs of the nine illuminometers. The analog output of the device number, the measurement point analog output, and the state analog output of the lighting device are converted from analog to digital and stored in the internal RAM.

In the case of the second and subsequent lighting devices, the above operation is repeated, and the number of lighting devices designated by the personal computer 4 is ended, or the stop button is operated halfway to end. As shown in FIG. 21, when the position of the lighting device cannot be detected within a predetermined time due to blurring of the aeronautical light metering vehicle 1 or non-lighting of the lighting device such as a broken ball, etc. Since the vehicle speed pulse count value after the detection is set to the value set by the personal computer 4, that is, when the distance between the lighting devices is reached, the number of the lighting device is incremented by one, and a pseudo measurement is performed. Does not occur. If the detection is not possible, an undetectable output is performed as a state analog signal of the lighting device, so that it can be determined at the data processing stage.
These data are graphed as shown in FIG. 22 and FIG. FIG. 22 shows the trajectory of the ground runway light RW, and FIG. 23 shows the trajectory of the recessed runway centerline light RC.

Then, the aeronautical light metering car 1 is stopped,
The data is transferred from the analyzing recorder body 37 to the personal computer 4. The personal computer 4 discards unnecessary data from the received data and processes only necessary data.

Then, these data are finally made into light distribution data for each lighting device and stored as light distribution data of the personal computer 4.

It is also possible to stop at the time of the moving measurement and perform the still measurement at an arbitrary set point to improve the reliability of the data. That is, if the vehicle is stationary, the vehicle of the aeronautical light metering vehicle 1 does not shake and accurate data is obtained. In the case of performing the static measurement, the response time of each of the illuminometers L1 to L23 is switched from the response time at the time of moving measurement to the response time at the time of static measurement, and is set to an appropriate response time. Therefore, the same purpose measurement can be performed in two types, that is, movement measurement that can be performed in a short time and stationary measurement that can perform a more accurate measurement, so that more accurate measurement can be performed in a short time. it can.

Further, as shown in FIG. 24, the personal computer 4 alternately performs the measurement processing shown in FIG. 24B and the data processing shown in FIG. It may be finished in time. That is, while the measurement process is being performed, the personal computer 4 is not performing any particular operation.
By performing the data processing during the idle time between the measurement processings, the data processing can be completed in a short time because the processing is substantially parallel processing.

Further, as shown in FIG.
An A / D conversion port AD, an I / O port IO, and a DC power supply DC may be connected in parallel between the PC 14 and the personal computer 4 so as to speed up data processing and improve accuracy. That is, since the digital input is performed by inputting from the optical receiver 14 through the A / D conversion port AD, high-speed processing can be performed by the personal computer 4 and the optical receiver can be processed via the I / O port IO. , The range for measurement can be easily switched. Since the value of the illuminance has a greater factor in the distance than the luminous intensity, the illuminance range is automatically changed according to the count of the vehicle speed pulse. After the range is switched, A / D conversion is performed after a stable time of about 1 to 2 msec. Since the personal computer 4 also stores the number of pulses for switching the range, post-processing can also be performed.

At the time of moving measurement, it is necessary to correct environmental light other than the illumination device to be measured.

However, in the movement measurement, since the measurement is performed while the aeronautical light metering car 1 is running, ambient light such as light from an apron illumination shown in FIG. 26 and light from a lighting device other than the object to be measured shown in FIG. 27 are excluded. It is very difficult to do. As for the runway centerline light RC or the runway light RW, the light from the apron lighting can be neglected due to the high illuminance level, but the light from non-target lighting devices cannot be ignored.

As a method of this correction, the ratio of the illuminance of only the illuminating device to be measured to the illuminance to be measured by the illuminating device to be measured and the illuminating device group disposed at the rear of the illuminating device is determined by a correction coefficient. As a method, a method of multiplying the measured value can be considered. In this case, the illuminance is based on a calculated value obtained based on the light distribution data of the lighting device in a certain state.

As another method, a method is considered in which the light of the target lighting device is blocked, ambient light is measured, and this ambient light is subtracted from the measured value.

At the time of these corrections, consideration must be given to the presence or absence of the moon, the atmospheric transmittance, the maintenance state of the lighting device, and the installation position of the lighting device.

Further, the vehicle speed pulse from the vehicle speed sensor 55 may be slightly different depending on the tire pressure, the remaining amount of gasoline, and the like.
An apparatus shown in FIG. 28 may be used.

The device shown in FIG. 28 is connected to a pulse counter PC for measuring the number of vehicle speed pulses, and a count value display device CD for displaying the number of vehicle speed pulses on the pulse counter PC.
An encoder EN for inputting a vehicle speed pulse, a start button STB for setting the start of vehicle speed pulse measurement, and a stop button SPB for setting the end of vehicle speed pulse measurement are connected.

Then, a distance between two points set in advance, for example, 500 to 3000 m, is added to the runway,
The start button STB is operated at the start point, the aeronautical light metering car 1 is driven straight ahead, the stop button SPB is operated at the stop point, the number of vehicle speed pulses is counted by the pulse counter PC, and the value counted by the pulse counter PC is used. Is measured as a number corresponding to the distance. This pulse counter
When the value measured by the PC corresponds to the actual traveling distance, there is no error in the vehicle speed pulse. On the other hand, when the running distance is different from the count number, an error is detected, a vehicle speed pulse for the actual running distance is calculated, and the calculated vehicle speed pulse is used as a correction coefficient. Then, the correction coefficient is input to the personal computer 4. By performing this measurement periodically, the error of the vehicle speed pulse is always absorbed.

Next, the basic operation at the time of stationary measurement will be described with reference to the flowcharts shown in FIGS.

First, the aeronautical light metering vehicle 1 is moved to the measurement position (step 1). Then, the power is turned on (step 2), a storage medium such as a flexible disk is set in the personal computer 4 (step 3), and the MS - DO is set.
S is started (step 4), and the date and time are input (step 5).

The BASIC is started (step 6), and the main program is loaded and executed (step 7). Then, the main program is started (Step 8), the flexible disk is removed from the personal computer 4 (Step 9), and it is determined whether the measurement is a moving measurement or a stationary measurement (Step 10). In the case of the movement measurement, the movement measurement mode is performed (step 1).
1).

On the other hand, in the case of static measurement, a static measurement mode is performed (step 12). The power of the drive control unit 41 is turned on (step 13), and the steering wheel 2 of the aeronautical light metering vehicle 1 is aligned with the center of the optical axis of the lighting device (step 14).

Also, at the time of stationary measurement, it is necessary to correct environmental light other than the illumination device to be measured.

The stationary measurement is not of a nature to be performed for all the lighting devices on the runway, and the measurement frequency is not high.
A method that spends time on the measurement itself can be used.

That is, first, as shown in FIG. 33, the environmental light is measured in a state where the runway centerline lamp RC serving as the target lighting device is masked, and then, as shown in FIG.
This is a method of measuring with the mask removed and obtaining the difference.

One of these states is selected (step 16).

Next, in order to select between continuous measurement and step measurement, it is determined whether or not continuous measurement is performed (step 17).

In the case of the through measurement, the lamp in the through measurement mode is turned on (step 18).

By operating an up button (not shown) on the elevation operation panel 44 (step 19), the horizontal bar is moved to a home position at a distance that does not affect the photodetector 14 for measurement.
Return to (P0) (step 20).

Next, by operating a through-measurement command button (not shown) on the elevation operation panel 44 (step 21), the horizontal bar is driven downward by the motor 53 to the next position (Pn + 1). The position signal of the position (Pn + 1) is transmitted, and the measurement controller 21 receives the position signal from the switch 54. When this position signal is received, the measurement controller
21, at the same time stopping the drive of the horizontal bar, sends a position signal of the horizontal bar to the personal computer 4, Ru turns on the position display lamp (not shown) of the elevator control panel 44 (step 22). When receiving the position signal, the personal computer 4 sends a range signal to the illuminometer 14 for static measurement. In addition, the personal computer 4 reads an analog signal from the illuminometer via the analog-to-digital converter 64, and if not in the proper range, changes the range and reads the analog output again. The obtained data is processed into illuminance data and stored.

The personal computer 4 transmits the signal under measurement to the horizontal bar drive control section 41 and turns on the display lamp under measurement on the elevation operation panel 44 (step 23). Then, measurement is started (step 24), data processing is performed (step 25), the processing data is output to the display screen of the personal computer 4 (step 26), and the measurement is terminated (step 27). Thereafter, the personal computer 4 transmits a measurement OFF signal to the measurement controller, and upon receiving the signal, the measurement controller turns off the lamp under measurement and moves the bar to the next position (step 28).

Then, the operation is repeated until the horizontal bar reaches the first position at the vertical angle of 8 degrees and the seventh position at the vertical angle of 2 degrees, and it is determined whether or not all the measurement points have been completed (step). 29) If all the measurement points have not been completed, the process returns to step 22. If all of the measurement points have been completed, it is determined whether the measurement is the second measurement to determine whether the measurement is the first measurement or the second measurement ( Step 30) If it is the first time, it is determined whether or not to perform the second time (Step 31). If it is the second time, the process returns to Step 15. If the second time is not performed in step 31, step 30
In addition, when it is determined that the measurement is the second measurement, it is determined whether the measurement is performed twice (step 32). When the measurement is performed twice, the difference between the data of the first measurement and the measurement of the second measurement is determined. (Step 33).

Next, it is determined whether or not to save the processing data (step 34). To save the processing data, a flexible disk is set in the personal computer 4 (step 35), and a saving operation of the processing data is performed (step 36). ), Save the processing data (step 37).

It is determined whether or not to output the processing data (step 38).
An output operation of processing data is performed (step 39), and processing data is output (step 40). Then, the lamp in the continuous measurement mode is turned off (step 41).

Further, it is determined whether or not to perform the measurement (step 42). If the measurement is to be performed, the process returns to step 14, and if the measurement is not to be performed, an operation for terminating the static measurement is performed (step 43). The power of the horizontal bar drive control unit 41 is turned off (step 44), and the process ends.

On the other hand, if it is determined in step 17 that step measurement has been performed, the lamp in step measurement mode is turned on (step 51).

By operating an up button (not shown) on the elevation operation panel 44 (step 52), the horizontal bar is moved to a home position at a distance that does not affect the photodetector 14 for measurement.
It rises to (P0) (step 53).

The personal computer 4 sends a range signal to the illuminometer 14 for static measurement when receiving the position signal.

Next, the down button (not shown) of the elevation operation panel 44 is operated (step 54), and the horizontal bar is driven downward by the motor 53 to the next position (Pn + 1). The measurement controller 21 receives the position signal from the switch 54 by transmitting the position signal of (Pn + 1). Upon receiving this position signal, the measurement controller 21
At the same time as stopping the driving of the horizontal bar, a position signal of the horizontal bar is transmitted to the personal computer 4, and
The position indicator lamp (not shown) of the elevator control panel 44 that lights up is <br/> (step 55). When receiving the position signal, the personal computer 4 sends a range signal to the illuminometer 14 for static measurement. In addition, the personal computer 4 reads an analog signal from the illuminometer via the analog-to-digital converter 64, and if not in the proper range, changes the range and reads the analog output again. The obtained data is processed into illuminance data and stored.

Then, the personal computer 4 operates a measurement button (not shown) on the elevation operation panel 44 (step 56), and transmits a signal indicating that the measurement is in progress to the horizontal bar drive control section 41, while the measurement is being performed on the elevation operation panel 44. Is turned on (step 57). Then, measurement is started (step 58), data processing is performed (step 59), the processing data is output to the display screen of the personal computer 4 (step 60), and the measurement is terminated (step 61).
Thereafter, the personal computer 4 stops the signal during measurement and turns off the measurement lamp on the elevation operation panel 44.
(Step 62).

Then, it is determined whether or not all the measurement points have been completed (step 63). If all of the measurement points have not been completed, the process returns to step 54. If all of the measurement points have been completed, the first measurement is performed. It is determined whether or not the measurement is the second time to determine whether the measurement is the second time (step 64). If the measurement is the first time, it is determined whether or not the second measurement is performed (step 65). Returns to step 15.
If the second time is not performed in step 31, step 6
Along with the case where it is judged to be the second measurement in 4 and 2
It is determined whether or not the measurement has been performed twice (step 66). If the measurement has been performed twice, the difference between the data of the first measurement and the data of the second measurement is calculated (step 67).

Next, it is determined whether or not to save the processing data (step 68). When saving, a flexible disk is set in the personal computer 4 (step 69), and a saving operation of the processing data is performed (step 70). ), Save the processing data (step 71).

It is determined whether or not to output the processing data (step 72).
An output operation of processing data is performed (step 73), and processing data is output (step 74). Then, the lamp in the step measurement mode is turned off (step 75). Then, the process proceeds to step 42.

The personal computer 4 discards unnecessary data from the received data and processes only the necessary data. Further, these data are finally made into light distribution data for each lighting device and stored as light distribution data of the personal computer 4.

According to the experiment, the value obtained by subtracting the illuminance between the illuminator and the ambient light with the mask shown in FIG. 33 from the illuminance between the illuminator and the ambient light is the error between the illuminance and the illuminance of only the illuminator. Was within 1%. In the experiment, since a DC power supply is used, when an AC power supply is used, the error is considered to increase due to sampling timing, but the error is reduced by slowing down the response of the illuminometer.

Further, the basic operation of the luminous intensity measurement of the lighting device will be described with reference to FIGS.

Conventionally, in general, when measuring the luminous intensity of an illuminating device, as shown in FIGS. 37 and 38, a screen S having a partial shape of a sphere having a radius of 5 m is used, and a measurement is made on the center point of the screen. Lighting equipment to be placed. In this case, the distance Ad that can be easily measured as shown in FIG.
Is equal to the distance AB to an arbitrary point b where the measuring light receiver is located, so that the luminous intensity at an arbitrary point on the screen S becomes the luminous intensity of the illumination device as it is.

However, in the case of the light receiver L7 on the frame 15 to which the light receiver group 13 is attached, the distance Ad and the distance AB that can be easily measured are different as shown in FIG. Therefore, the measured luminous intensity is converted in the personal computer 4 from the distance AB to a function of the distance Ad.

First, as shown in FIG. 36, the distance between the light receiving device L7 and the lighting equipment is E ₁ = E ₀ / cos θ. The distance AB is given by AB = d / cos θ. Therefore, since the luminous intensity I measured by the light receiver L7 is inversely proportional to the square of the distance, I = E ₁ · (AB) ² = (E ₀ / cos θ) · (d / cos θ) ² = E ₀ d ² / cos ³ θ, and the position coordinate data of the light receiver, the distance data between the frame 15 and the illuminating device, and any one of the light receivers in the light receiver group 13 without using the screen S having a radius of 5 m as in the related art. The luminous intensity of the lighting device can be easily measured using the luminous intensity measured by the method. Therefore, simplification in manufacturing the device is achieved.

Further, the above-described measurement and management based on the contents of the measured data will be described.

First, as shown in FIG. 40, a flexible disk storing measured data is inserted into a personal computer 61 disposed in a control room or the like, and displayed on a screen based on the measurement result. In addition, the type, state,
Type classification, control number and illuminance level are input.

Then, as shown in FIG. 41, the classification and type of each individual lighting device are displayed, for example, by a bar graph. In addition to displaying the current real-time lighting time with respect to the set lighting time, the current illuminance, luminous intensity or light distribution curve is also displayed by performing calculations based on data and statistics. Then, when the lighting time reaches the set time or when the illuminance or the luminous intensity falls below the set value, a maintenance alarm or the like is output and the display state is changed. In FIG. 41, one illumination device is displayed at one level, but it may be displayed for each illuminance sensor of the light receiver group 13.

Further, a maintenance instruction such as cleaning or replacement is issued from the printer 66 connected to the personal computer 65.

[0109] And also, each of the luminance meter 11 is not limited to <br/> one without one, as shown in FIG. 42, luminance meter 11A of triplicate respectively, 11B, 11C may be used. That is, the viewing angle of each luminance meter is set to be very narrow so that the output has sharpness. Therefore, luminance meters 11A, 11B, 11C
One not One used, those that are wide viewing angle as a whole.

In this case, the outputs of the luminance meters 11A, 11B, 11C are as shown in FIG. 43 or 44.

In the case shown in FIG. 43, one luminance meter
Although the sharpness is sufficiently obtained with the output of 11C, in the case shown in FIG. 44, the sharpness is hard to be obtained because the two luminance meters 11A and 11B output the signals respectively. Therefore, the output of these three luminance meters 11A, 11B, and 11C is ORed, the sharpness of the output is obtained, and the output is detected. As described above, by using the three luminance meters 11A, 11B, and 11C, it is possible to reliably detect even if the aeronautical light photometer vehicle 1 is shaken. In addition,
To facilitate the measurement, only the maximum value may be taken.

As shown in FIGS. 45 and 46,
On one side of the runway corresponding to the runway centerline light RC, an infrared light emitter IRE that emits a beam-like infrared light is arranged, and the side surface of the aeronautical light metering vehicle 1 is perpendicular to the running direction. Infrared sensor IR with vertical slit aperture
By attaching S and receiving infrared light from the infrared light emitter IRE with the infrared sensor IRS on the side surface of the aeronautical light metering vehicle 1, the position of the runway centerline light RC on the runway can be reliably detected. If the detection is performed in combination with the vehicle speed pulse,
The runway centerline light RC can be detected more reliably.

Further, at the rear of the aeronautical light metering car 1, FIG.
The detection may be performed by attaching the fifth wheel 71 shown in FIG.
As shown in FIG. 47, the fifth wheel 71 is provided with a rotatable fulcrum 73 near one end of an arm body 72, and a rotatable driven wheel 73 at the other end of the arm body 72. A switch 75 is provided at one end.

During traveling, the driven wheel 74 is lowered by its own weight, and the switch 75 is not pressed. In addition, when the vehicle runs on the runway centerline lamp RC protruding on the runway, the driven wheel 74 is pushed upward, the arm body 72 rotates around the fulcrum 73, and the switch 75 is pressed, so that the runway Detect centerline light RC.

Further, as shown in FIG. 48, the transmitting device TR is attached to the aeronautical light metering vehicle 1, and the receiving device RE is installed on the management room side.
May be provided.

In this case, the transmission contents include the measured illuminance value, the measurement position, the illuminometer number, the illuminator number, and the type of the illuminator. The transmitted contents are sent from the receiving device RE to the data processing device 76, and the data processing device 68 performs data analysis such as light intensity conversion calculation, determination processing, data display processing, and data storage in real time.

In the processing, as shown in FIG. 49, the measurement processing shown in FIG. 49B, the communication processing shown in FIG.
The data processing shown in (1) and (2) are performed in a time-division manner to achieve high-speed processing at high density.

By this processing, the processing which conventionally uses a storage medium such as a flexible disk can be directly processed, and the large-sized processing device 68 can be used, so that the calculation can be complicated and the processing speed can be increased.

Next, the measurement of the illuminance distribution of the illumination device will be described.

As shown in FIG. 50, the measuring device 81 has a plurality of light receivers 82 arranged in a matrix having a height and a width of 15 cm each. The measuring device 81 is attached to the front or rear of the aeronautical light metering vehicle 1. In addition, in order to avoid the influence of the headlight of the aeronautical light metering car 1, it is desirable to attach the aeronautical light metering car 1 to the rear.

Then, the aeronautical light metering vehicle 1 is driven linearly on the runway centerline light RC, and as shown in FIG. 51, the vehicle speed pulse of the aeronautical light metering vehicle 1, for example, every five shots, The illuminance of the light RC is measured, and a total of 13 measurements are performed for one runway centerline light RC. That is, FIG.
(a) and (b), as shown in FIG. 52, the slice is cut in a direction perpendicular to the optical axis direction of the illumination device.
For example, it indicates a range of 200 lx or more. Then, an illuminance distribution map of 200 lx or more is obtained as shown in FIG. Then, a comparison is made with the preset minimum illuminance distribution, and when the area has a size equal to or greater than the minimum illuminance distribution,
Indicates that the illuminance distribution is above the reference.

Further, the present invention is not limited to the airport lighting facilities of the above-described embodiments, and can be used for highway lights, tunnel lights, street lights, or these embedded sign light facilities.

[0123]

According to the illumination measuring method of the first aspect,
In the case of a lighting device that is arranged at a predetermined interval and emits light having an optical axis symmetrical in the front-back direction, the position of each lighting device is detected by a change in the light output of each lighting device while moving along a plurality of lighting devices. Then, the illuminator moves forward from the front of the illuminating device to be detected, and measures the illuminance to the front of the illuminating device at the moved location with an illuminometer. Without this, the illuminance of the lighting device can be easily and efficiently measured. In addition, when the light output of the lighting device to be detected is equal to or less than a predetermined value, the position of the undetectable lighting device is estimated based on the measured moving distance and the arrangement distance of the plurality of lighting devices. Out of the device
Even if there is an unlit one, the individual lighting devices can be managed.

According to the photometric vehicle of the second aspect, while moving along the plurality of lighting devices, the light in front of the lighting device is received by the light receiver attached to the vehicle body, and the light is detected by the position detecting means. Detects the position of each lighting device based on changes in output,
When the position detecting means detects the position of the lighting device by the position detecting means, the moving distance is measured by the distance measuring means, and the illuminance toward the front of the lighting device at a predetermined distance ahead of the position of the lighting device is attached to the vehicle body. By using the illuminometer, the illuminance of the illuminating device can be easily and efficiently measured only by the moving operation without removing the illuminating device. Further, the position estimating means estimates the position of the undetectable lighting device based on the measured moving distance and the distance between the plurality of lighting devices when the light output of the lighting device to be detected is equal to or less than a predetermined value. Thereby, even if there is a non-lighting device among the plurality of lighting devices, the individual lighting devices can be managed .

[Brief description of the drawings]

FIG. 1 is a time chart showing one embodiment of the illumination measuring method of the present invention.

FIG. 2 is a plan view showing an arrangement of appliances in the aeronautical light metering vehicle.

FIG. 3 is a plan view showing an arrangement of instruments outside the vehicle.

FIG. 4 is a rear view showing attachment of a device at the rear outside the vehicle.

FIG. 5 is a rear view showing attachment of the device at the time of storage of the rear part outside the vehicle.

FIG. 6 is a plan view showing a positional relationship with the garage.

FIG. 7 is a plan view showing a positional relationship with the same slope.

FIG. 8 is a plan view showing an example of the light emitting section.

FIG. 9 is a side view showing the light emitting unit.

FIG. 10 is a front view showing the light emitting unit.

FIG. 11 is a diagram showing a light emitting unit as viewed from an aperture of the luminance meter.

FIG. 12 is a front view showing a measurement state of a luminance meter when a 0.2-degree viewing angle slit is used.

FIG. 13 is a front view showing a measurement state of the luminance meter when a 1-degree viewing angle slit is used.

FIG. 14 is a front view showing a measurement state of the luminance meter when a 2 ° viewing angle slit is used.

FIG. 15 is a front view showing a measurement state of the luminance meter.

FIG. 16 is a front view showing a measurement state of the luminance meter.

FIG. 17 is an explanatory diagram showing a relationship between an aiming angle and an error of the luminance meter.

FIG. 18 is a front view showing a rear frame of the same.

FIG. 19 is a block diagram showing a configuration of the measuring device.

FIG. 20 is a time chart showing detection of the lighting device in the same normal operation.

FIG. 21 is a time chart showing detection of a lighting device when an abnormality occurs in the lighting device.

FIG. 22 is a graph showing measurement results of Embodiment 1;

FIG. 23 is a graph showing the results of the measurement.

FIG. 24 is a time chart showing a next division process between the measurement process and the data process.

FIG. 25 is a connection diagram showing the connection between the A / D conversion port and the I / O port.

FIG. 26 is an explanatory diagram showing external light from the apron illumination.

FIG. 27 is an explanatory diagram showing external light from a lighting fixture which is not the same as the above.

FIG. 28 is a block diagram showing an apparatus for correcting a vehicle speed pulse according to the third embodiment;

FIG. 29 is a flowchart showing an operation of stationary measurement according to the third embodiment.

FIG. 30 is a flowchart of the above.

FIG. 31 is a flowchart of the above.

FIG. 32 is a flowchart of the above.

FIG. 33 is an explanatory diagram in the case where the illumination device is masked.

FIG. 34 is an explanatory diagram when a mask is removed from the illumination device.

FIG. 35 is an explanatory diagram showing measurement of the luminous intensity of the lighting device.

FIG. 36 is an explanatory diagram showing a relationship between the light receiving device and the light receiving device.

FIG. 37 is a plan view showing a screen for measuring the luminous intensity according to the third embodiment.

FIG. 38 is a side view showing a screen for measuring luminous intensity.

FIG. 39 is an explanatory view showing measurement of the luminous intensity of the screen.

FIG. 40 is a diagram showing a maintenance device according to the third embodiment;

FIG. 41 is a diagram showing display contents of the above.

FIG. 42 is an explanatory diagram showing a case where a plurality of luminance meters are placed in contact with each other;

FIG. 43 is a graph showing outputs from three luminance meters according to the embodiment.

FIG. 44 is a graph showing outputs from three luminance meters according to the embodiment.

FIG. 45 is a rear view of the device showing position measurement using infrared light according to the embodiment;

FIG. 46 is a plan view of the device showing position measurement using infrared light according to the embodiment.

FIG. 47 is an explanatory view showing a fifth wheel of the above.

FIG. 48 is a system diagram showing an aeronautical light metering vehicle using the same radio;

FIG. 49 is a time chart showing a next division process of the measurement process, the data process, and the communication process in the case where wireless communication is used.

FIG. 50 is a plan view showing an apparatus showing an illuminance distribution of the above.

FIG. 51 is an explanatory diagram showing a relationship between illumination by the illumination device and a vehicle speed pulse.

FIG. 52 is an explanatory diagram showing a relationship between the light receiver and the illuminance.

FIG. 53 is an illuminance distribution chart of the above.

[Explanation of symbols]

Reference Signs List 1 photometric vehicle 1a wagon vehicle as vehicle body 4 personal computer as control means also as position estimating means 11 luminance meter as light receiver 14 illuminometer 21 measurement controller with function as position detecting means Sliding as RC lighting device Roadway light RW Runway light as lighting device

──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor: Shu Hyakumi 1-4-28, Mita, Minato-ku, Tokyo Inside Toshiba Lighting & Technology Corporation (72) Inventor: Shigeyuki Tokunaga 1-4-28, Mita, Minato-ku, Tokyo Examiner at Toshiba Lighting & Technology Corp. Akio Yasuda (56) References JP-A-58-117423 (JP, A) JP-A-49-36361 (JP, A) Jpn. ) Field surveyed (Int.Cl. ⁷ , DB name) G01J 1/00-1/60 G01B 11/00-11/30 102 G05D 1/00-1/12 G01D 5/26-5/38 G01C 3 / 00-3/32 G01M 11/00-11/08 G01V 8/00-8/26 F21S 2/00-9/04

Claims (2)

(57) [Claims] 1. A lighting device which is arranged at a predetermined interval and moves along a plurality of lighting devices each of which emits light symmetrical in the front-back direction, and the position of each lighting device is changed by a change in light output in the front direction of each lighting device. Detecting the forward moving distance; detecting when the light output of the lighting device to be detected is equal to or less than a predetermined value, based on the measured moving distance and the disposition distance of the plurality of lighting devices. Estimating the position of the disabled lighting device; moving forward from the detected or estimated position of the lighting device; measuring the forward moving distance; moving forward a predetermined distance. And a step of measuring the illuminance toward the front of the illumination device to be detected. 2. A vehicle main body, wherein a plurality of illuminating devices arranged at predetermined intervals and irradiating symmetrical light in the front-rear direction, respectively, receive light radiated toward a front side of an arbitrary illuminating device. A light receiver attached to the vehicle body; position detecting means for detecting a position of each lighting device based on a change in light output accompanying movement of the vehicle body in a direction in front of the lighting device received by the light receiver; And a distance measuring means for measuring the position of the undetectable lighting device based on the measured moving distance and the distance between the plurality of lighting devices when the light output of the lighting device to be detected is equal to or less than a predetermined value. Position estimating means; an illuminometer attached to the vehicle body so as to measure the illuminance toward the front of the lighting device; a position of each lighting device detected by the position detecting means, and a moving distance measured by the distance measuring means. And based on Control means for measuring, with an illuminometer, the illuminance toward the front of the illuminating device at a predetermined distance ahead of the position of each of the illuminating devices, and a control means .