JP6406621B2 - Stationary metering unit - Google Patents

Description

  Embodiments relate to a stationary photometry unit.

  In the airfield, various airfield lights are provided to support the takeoff and landing of aircraft. Among the airfield lights, for example, the runway centerline lamp arranged on the centerline of the runway and the lighting device that constitutes the ground belt lamp indicating the grounding range of the landing aircraft are in a position that can be stepped on by the aircraft. The light emitting part protrudes about 15 mm from the road surface. On the other hand, the illuminating device which constitutes the runway lamp which shows the outer edge of a runway has projected about several dozen cm from the ground surface giving priority to visibility.

  Such an illuminating device must always realize a light intensity of a predetermined value or more in order to ensure safe operation of the aircraft. However, the light intensity may decrease due to failure of the lighting device, deterioration with time, contamination of the light emitting surface, and the like. For this reason, it is recommended by the International Civil Aviation Organization (ICAO) to maintain the performance of the lighting device.

  Conventionally, the inspection of the lighting device is divided into a plurality of blocks for the entire airport, the lighting device is removed from the runway for each block, transported to another place, the light intensity is measured, and if there is no problem, it is returned to the original position. It was done by that. However, since the airport is large, this method requires a lot of time for the inspection. Since the inspection of the lighting device must be performed in a time zone when the aircraft does not take off and land, shortening the inspection time has been an important issue.

  In view of this, a method has been proposed in which a vehicle equipped with an optical sensor travels in a runway and the light intensity of the lighting device is measured while traveling. For example, when a large number of lighting devices are arranged along a straight line at a constant cycle, such as a runway centerline lamp, a plurality of lighting devices can be obtained by driving the vehicle at a constant speed along the light train. Successively enter the detection area of the optical sensor at regular time intervals. For this reason, many illuminating devices can be test | inspected efficiently by acquiring the output signal of an optical sensor at a fixed time interval.

  However, depending on the type of airfield lighting, it may be better to measure the light intensity with the optical sensor stationary relative to the illumination device. In such a case, the vehicle is stopped at a predetermined position with respect to the lighting device, and the light intensity is measured. However, for example, the lighting device has a diameter of about 200 mm, and the vehicle is considerably larger than the lighting device, so that it is difficult to position the vehicle at an appropriate inspection position. For this reason, time is required for the positioning of the vehicle and the work for redoing it.

Japanese Patent No. 3482571

  An object of the embodiment is to provide a stationary photometry unit that can efficiently check a lighting device.

The stationary measurement unit according to claim 1 includes a movable base; an optical sensor attached to the base; a handle attached to the base; a pair of main wheels rotatably attached to the base; An auxiliary wheel attached to the gantry and having a diameter smaller than the diameter of the main wheel and capable of rotating a rotation shaft; provided between the pair of main wheels on the upper surface of the gantry and viewed by a person from above and positioning means for assisting the positioning of the frame relative to Littelfuse illumination device by the; comprises a. The distance between the handle and the main wheel is shorter than the distance between the handle and the auxiliary wheel. The stationary measuring unit is in a state where the frame is covering the lighting device fixed to the ground, it is possible to measure the light intensity of the lighting device by the light sensor.

  The static measurement unit according to a second aspect further includes a light shielding plate arranged on the side of the optical sensor in addition to the static measurement unit according to the first aspect.

Stationary measuring unit according to claim 3, in addition to the stationary measuring unit according to claim 1 or 2, securable to the frame, extending in the horizontal direction, is concavely curved sides along an arc The frame is further provided. A plurality of the optical sensors are provided, and the plurality of optical sensors are attached to the side surface.

In addition to the stationary measurement unit according to any one of claims 1 to 3 , the stationary measurement unit according to claim 4 includes a vertically moving unit that is mounted on the mount and moves the optical sensor in the vertical direction. In addition.

The stationary measurement unit according to claim 5 is the stationary measurement unit according to any one of claims 1 to 4 , wherein a lower end of the gantry is located above an upper end of the lighting device.

According to the static measurement unit of the first aspect, the light intensity of the lighting device can be measured by the optical sensor in a state where the gantry covers the lighting device. Thereby, the positional relationship between the optical sensor and the illumination device can be set easily and accurately. As a result, the lighting device can be inspected efficiently. According to the static measurement unit of the first aspect, the handle, the main wheel, and the auxiliary wheel are arranged and attached to the gantry in this order. The diameter of the auxiliary wheel is smaller than the diameter of the main wheel, and the rotation shaft of the auxiliary wheel is rotatable. As a result, the operator can move the stationary measurement unit using the handle, and when the operator grips the handle and rotates the gantry, the rotation axis of the gantry is located between the main wheels. Easy to use. Furthermore, since the positioning means for assisting the positioning of the gantry with respect to the lighting device is provided, the positional relationship between the optical sensor and the lighting device can be set more precisely and quickly. As a result, the light intensity of the illumination device can be accurately and efficiently measured.

  According to the static measurement unit of the second aspect, since the light shielding plate is disposed on the side of the optical sensor, it is possible to suppress external light from entering the optical sensor. As a result, measurement accuracy is improved.

According to the static measurement unit of the third aspect , since the plurality of photosensors are attached to the concave curved surface along the arc, the distance between each photosensor and the illumination device can be made uniform. it can. Thereby, the measurement accuracy is improved.

According to the stationary measurement unit of claim 4 , since the vertical movement means for moving the optical sensor in the vertical direction is provided, the optical sensor is adapted to the shape and light distribution characteristics of the illumination device to be measured. The height of the can be adjusted. Thereby, the measurement suitable for each illuminating device is attained.

According to the stationary measurement unit of the fifth aspect , since the lower end of the gantry is located above the upper end of the illuminating device, it is easy to cover the illuminating device on the gantry.

It is a side view showing the photometry system concerning a 1st embodiment. It is a top view which shows the photometry system which concerns on 1st Embodiment. It is a block diagram which shows the photometry system which concerns on 1st Embodiment. (A) is a top view which shows the stationary measurement unit which concerns on 1st Embodiment, (b) is the side view, (c) is the back view. It is a figure which shows arrangement | positioning of an airfield lamp. (A)-(c) is a figure which shows the method of the movement measurement in 1st Embodiment. It is a timing chart which shows the time change of a signal, taking time on the horizontal axis and taking the intensity of the signal on the vertical axis. (A)-(c) is a figure which shows the method of carrying out static measurement of the ground type illuminating device in 1st Embodiment, (a) is a top view, (b) is a side view, c) is a rear view. It is a block diagram which shows the photometry system which concerns on 2nd Embodiment.

(First embodiment)
First, the first embodiment will be described.
The photometric system according to the present embodiment is a photometric system that measures the light intensity of a lighting device fixed to the ground surface. The lighting device fixed to the ground surface is, for example, an airfield lamp provided on a runway.

<Overall structure of photometric system>
First, the overall structure of the photometric system according to this embodiment will be described.
FIG. 1 is a side view showing a photometric system according to this embodiment.
FIG. 2 is a top view showing the photometric system according to the present embodiment.
FIG. 3 is a block diagram showing a photometric system according to this embodiment.

  As shown in FIGS. 1 and 2, in the photometric system 1 according to the present embodiment, a photometric vehicle 10, a stationary measurement unit 20, and a cable 30 that connects the photometric vehicle 10 and the stationary measurement unit 20 are provided. .

  The photometric vehicle 10 can measure the light intensity, such as illuminance or luminance, of a lighting device fixed to the ground surface while moving. In the photometric vehicle 10, a vehicle 11 is provided, and a control unit 12 and a movement measurement unit 13 are mounted on the vehicle 11. The vehicle 11 is an ordinary automobile that can be self-propelled by an internal combustion engine or a motor, for example, a wagon car, and a hatchback door 14 is provided on the rear surface. Further, when the door 14 is opened, the slope 15 can be pulled out to the ground surface G. The vehicle 11 can be produced by modifying a welfare vehicle that can accommodate a wheelchair, for example. Instead of the slope 15, for example, a power gate (registered trademark) system or the like can be used as appropriate.

  The vehicle 11 can house and carry the stationary measurement unit 20. The stationary measurement unit 20 is a mechanically independent unit and can be moved by human power. For this reason, the stationary measurement unit 20 can be lowered from the vehicle 11 to the ground surface G using the slope 15 and can be separated from the vehicle 11. At this time, the mobile measurement unit 20 is supplied with power from the control unit 12 via the cable 30. The moving measurement unit 20 can measure the light intensity of the lighting device while being stationary with respect to the lighting device on the ground surface.

<Structure of photometric vehicle>
Next, the configuration of the photometric vehicle 10 will be described in detail.
As shown in FIGS. 1 and 2, in the photometric vehicle 10, the control unit 12 is provided inside the vehicle 11. For example, no seat is provided in the passenger seat of the vehicle 11 and the control unit 12 is fixed. The control unit 12 supplies power to both the mobile measurement unit 13 and the stationary measurement unit 20, controls the operation, and receives a detection signal. A driver's seat 16 is provided at the driver's seat of the vehicle 11.

  Further, no seat is provided on the rear seat of the vehicle 11. The space behind the driver's seat and passenger seat in the vehicle 11 has a flat floor or slope 15 and is used as a storage place for the stationary measurement unit 20. A simple sheet for the operator may be provided in this space.

  The movement measurement unit 13 is disposed outside the vehicle 11 and is attached to the front surface of the vehicle 11. The movement measurement unit 13 is provided with a support base 17 fixed to the vehicle 11, and a position sensor 18 and an optical sensor 19 are attached to the front surface of the support base 17. For example, in the present embodiment, two position sensors 18 are provided, and one position sensor 18 is disposed on each of the left and right of the upper portion of the support base 17. The position sensor 18 is, for example, a luminance meter that measures the luminous intensity of light incident from within a predetermined angle range. On the other hand, for example, five optical sensors 19 are provided and arranged in a cross shape when viewed from the front. The optical sensor 19 is, for example, an illuminometer that measures the illuminance of light incident from within a predetermined angle range.

  As shown in FIG. 3, the control unit 12 includes a power supply unit 40, a power supply panel 41, and a power distribution device 42. The power supply unit 40 is provided with a secondary battery such as a lithium battery, and outputs predetermined power to the power supply panel 41. The power supply panel 41 supplies power to each part of the control unit 12 and the stationary measurement unit 20 directly or via the voltage divider 42.

  In the control unit 12, an interface (IF) board 43 is provided. The IF board 43 is provided with a position sensor driver 44 and optical sensor drivers 45 and 46.

  The position sensor driver 44 is supplied with electric power from the power supply panel 41, outputs a control signal to the position sensor 18, and operates the position sensor 18. The position sensor driver 44 converts the detection signal input from the position sensor 18 into a trigger signal and outputs the trigger signal.

  The optical sensor driver 45 is supplied with electric power from the power supply panel 41, outputs a control signal to the optical sensor 19, and operates the optical sensor 19. The optical sensor driver 45 converts the detection signal input from the optical sensor 19 into a signal indicating the light intensity and outputs the signal.

  Similarly, the optical sensor driver 46 is supplied with power from the power supply panel 41 and outputs a control signal to the optical sensor 27 of the stationary measurement unit 20 to operate the optical sensor 27 and input from the optical sensor 27. The detected signal is converted into a signal indicating the light intensity and output.

  In the control unit 12, a vehicle speed sensor 47, a measurement controller 48, a hub / radio unit 49, a measurement / analysis unit 51, an input / output terminal 52, and a display unit 53 are provided. The vehicle speed sensor 47 outputs a pulse generated by an encoder (not shown) attached to the shaft of the vehicle 11 to the measurement controller 48 as a speed pulse.

  The measurement controller 48 is supplied with power from the power board 41 and outputs a control signal to the IF board 43. In addition, a signal is input from the IF board 43 to the measurement controller 48. These signals are processed and output to the measurement / analysis unit 51 via the hub / radio unit 49. The measurement controller 48 calculates the travel distance of the photometric vehicle 10 based on the speed pulse output from the vehicle speed sensor 47, and the photometric vehicle 10 approaches the illumination device 101 by the trigger signal output from the position sensor driver 44. This is detected, a control signal is output to the photosensor driver 45, and the photosensor 19 is activated.

  The measurement / analysis unit 51 determines whether the illumination device 101 is normal or abnormal based on the light intensity signal output from the optical sensor driver 45 or 46, and stores the determination result. The measurement / analysis unit 51 can be configured by a personal computer, for example.

  The measurement controller 48 and the measurement / analysis unit 51 are connected to the input / output terminal 52 via the hub / radio unit 49. The input / output terminal 52 can be configured by, for example, a notebook personal computer. The hub / radio unit 49, the measurement / analysis unit 51, and the input / output terminal 52 are supplied with power via the power distribution unit 42. The input / output terminal 52 can move in and around the vehicle 11. Depending on the position of the input / output terminal 52, power can be directly supplied from the power supply panel 41 without using the power distributor 42.

  The display unit 53 is connected to the measurement controller 48, and is disposed at a position where it can be seen from the driver's seat of the vehicle 11, for example. The display unit 53 includes, for example, a travel distance and a current position from the reference position of the photometric vehicle 10, operating states of the position sensor 18 and the optical sensor 19, output signals of the position sensor 18 and the optical sensor 19, and determination by the measurement / analysis unit 51 Results and various alarms can be displayed.

  The hub / radio unit 49 functions as a hub in the control unit 12 and can output the determination result of the measurement / analysis unit 51 to the outside of the photometry system 1 by wireless communication.

<Configuration of stationary measurement unit>
Next, the configuration of the stationary measurement unit 20 will be described in detail.
4A is a top view showing the stationary measurement unit according to the present embodiment, FIG. 4B is a side view thereof, and FIG. 4C is a rear view thereof.

  As shown in FIGS. 4A to 4C, the stationary measurement unit 20 is provided with a gantry 21. The gantry 21 is formed by arranging a plurality of frames 21f along sides of a virtual rectangular parallelepiped and coupling them together. Therefore, the shape of the gantry 21 is a substantially rectangular parallelepiped. The longitudinal direction of the gantry 21 is the front-rear direction. In addition, the lower end of the gantry 21 is located above the upper end of the lighting device to be measured.

  A pair of main wheels 22 are provided on both sides in the width direction of the rear portion of the gantry 21. The main wheel 22 is rotatably supported by the gantry 21. The rotation axis direction of the main wheel 22 is the width direction. The main wheel 22 may have a brake. Of the frame 21 f, a pair of frames 21 fa that are arranged at the front end portion and both widthwise end portions of the gantry 21 and extend in the vertical direction extend downward from the gantry 21. An auxiliary wheel 23 is rotatably attached to the lower end of the frame 21fa. The diameter of the auxiliary wheel 23 is smaller than the diameter of the main wheel 22. The direction of the rotation axis of the auxiliary wheel 23 can be freely changed in a horizontal plane. In this way, the gantry 21 is in contact with the ground surface G by the two main wheels 22 provided at the rear part and the two auxiliary wheels 23 provided at the front end part.

  A pair of handles 24 are attached to the upper end portion of the rear end portion of the gantry 21. Therefore, the distance between the handle 24 and the main wheel 22 is shorter than the distance between the handle 24 and the auxiliary wheel 23. The position and shape of the pair of handles 24 are set so that the operator can hold them with both hands. Thereby, the operator can move the stationary measurement unit 20 forward by pushing the handle 24, and can move the stationary measurement unit 20 backward by pulling the handle 24. In addition, the direction of the stationary measurement unit 20 can be changed by applying forces in different directions or different magnitudes to the left and right handles 24. At this time, the rotating shaft of the auxiliary wheel 23 rotates, and the front end portion of the gantry 21 moves in the width direction. Thereby, the rotating shaft of the gantry 21 is located between the main wheels 22. Thus, the stationary measurement unit 20 can be moved manually. The rear part of the stationary fixing unit 20, that is, the part including the main wheel 22 and the handle 24 may be produced by modifying a commercially available wheelchair, for example.

  A motor 25 a is provided at the front portion of the gantry 21. The motor 25a is a stepping motor, for example, and can move an actuator 25b extending in the vertical direction in the vertical direction within a certain range. The motor 25a is controlled by a motor controller 25c (see FIG. 3). The motor 25a, the actuator 25b, and the motor controller 25c constitute the vertical movement means 25. As shown in FIG. 3, the motor controller 25 c is supplied with power from the power panel 41 of the control unit 12 via the cable 30.

  As shown in FIGS. 4A to 4C, a support frame 26 extending in the horizontal direction is fixed to the actuator 25b. The rear surface 26r of the support frame 26 extends in the width direction, but is gently curved in a concave shape along an arc having a radius r. The center of the arc along which the rear surface 26r extends is referred to as “center C”. The center C is located between a pair of main wheels 22, for example.

  A plurality of optical sensors 27 are attached to the rear surface 26 r of the support frame 26. The optical sensor 27 faces the inner side of the arc formed by the rear surface 26r. The plurality of optical sensors 27 are arranged in a line over substantially the entire length of the support frame 26. As shown in FIG. 3, the optical sensor 27 can be connected to an optical sensor driver 46 via a cable 30. Thereby, the optical sensor 27 is supplied with electric power from the power supply unit 40 of the control unit 12 via the power supply panel 41, the optical sensor driver 46 and the cable 30, and the optical sensor driver 46 and the cable 30 are supplied by the measurement controller 48. And a detection signal is output to the optical sensor driver 46 via the cable 30. For convenience of illustration, the vertical movement means 25 is omitted in FIG. The same applies to FIG. 8C described later.

  A light shielding plate 28 is provided on the side of the optical sensor 27. Specifically, the light shielding plate 28 is attached to the front surface, the back surface, and the left and right side surfaces of the gantry 21. On the other hand, the light shielding plate 28 is not provided on the upper surface and the lower surface of the gantry 21. Note that a light shielding plate may be provided above the optical sensor 27 in order to more effectively suppress the influence of nighttime moonlight, starlight, or outdoor lighting equipment.

  Positioning means 29 is provided on the upper surface of the rear portion of the gantry 21. The positioning unit 29 assists the operator in positioning the gantry 21 with respect to the lighting device 101. For example, the positioning means 29 is formed by combining bars in a ladder shape to form a square frame. The center of the square frame is located immediately above the center C.

<Operation>
Next, the operation of the photometric system 1 according to this embodiment will be described.
First, the lighting device that is the measurement target will be described.
FIG. 5 is a diagram showing the arrangement of airfield lights.
In the airfield, various airfield lights are provided to support take-off and landing of the aircraft. In FIG. 5, a runway center line light L1, a ground belt light L2 provided on one runway R, and Only the runway light L3 is shown.

  As shown in FIG. 5, the runway centerline lamp L1 is a lamp indicating the centerline of the runway R, and is indicated by a circle (◯) in FIG. The ground belt lamp L2 is a lamp indicating the ground contact area of the aircraft, and is indicated by a square (□) in FIG. The runway light L3 is a lamp indicating the outer edge of the runway, and is indicated by a triangle (Δ) in FIG. An embedded illumination device is used for the runway center line lamp L1 and the ground belt lamp L2, and a ground illumination device is used for the runway lamp L3.

<Movement measurement>
Next, a method for measuring the light intensity of the illumination device while moving will be described.
FIGS. 6A to 6C are diagrams showing a movement measurement method in the present embodiment.
7A to 7E are timing charts showing time-dependent changes of each signal, with time on the horizontal axis and signal intensity on the vertical axis. FIG. 7A shows velocity pulses. b) shows the output signal of the position sensor, (c) shows the trigger signal, (d) shows the state of the optical sensor, and (e) shows the output signal of the optical sensor.

  As shown in FIG. 5, the runway center line lamp L1 among the airfield lights uses an embedded illumination device, so that the photometric vehicle 10 can pass right above the illumination device. Further, since the runway center line lights L1 are arranged in a straight line and at equal intervals, when the photometric vehicle 10 moves at a constant linear velocity, it enters the detectable region of the photometric vehicle 10 at regular time intervals. For this reason, the runway center line lamp L1 is suitable for movement measurement by the photometric vehicle 10.

  First, an operator drives the photometric vehicle 10 and heads to the end of the runway R from the parking place. At this time, the measurement controller 48 of the control unit 12 stores information indicating the position of the runway centerline lamp L1. The position sensor 18 and the optical sensor 19 are turned off. A stationary measurement unit 20 is accommodated in the photometric vehicle 10. In addition, when not performing the static measurement mentioned later, the static measurement unit 20 does not need to be accommodated.

  Next, the photometric vehicle 10 travels on the center line of the runway R from the end of the runway R at a constant speed. As shown in FIGS. 3 and 7A, the measurement controller 48 starts measuring the travel distance of the photometric vehicle 10 based on the speed pulse input from the vehicle speed sensor 47.

  As shown in FIG. 6A, the optical sensor 19 of the photometric vehicle 10 detects only light incident from a predetermined detection angle range. By setting the height of the optical sensor 19 from the ground surface G and the detection angle range, the detectable region S1 can be set in front of the photometric vehicle 10. When the illumination device 101 is positioned inside the detectable region S1, the light intensity of the illumination device 101 can be measured. Similarly, the detectable region S2 of the position sensor 18 can be set. With reference to the photometric vehicle 10, the detectable area S2 of the position sensor 18 is set in front of the detectable area S1 of the optical sensor 19.

  In the state shown in FIG. 6A, the photometric vehicle 10 is far from the illumination device 101, and the illumination device 101 is not located in the detectable region S1 or the detectable region S2. However, since the measurement controller 48 measures the travel distance of the photometric vehicle 10 based on the speed pulse, the distance to the first illumination device 101 is estimated based on the mutual positional relationship between the position sensor 18 and the optical sensor 19. be able to. When the distance to the first lighting device 101 becomes a predetermined value or less, the measurement controller 48 turns on the position sensor 18 via the position sensor driver 44.

  Thereafter, as shown in FIG. 6B, when the illumination device 101 enters the detectable region S2 of the position sensor 18, the position sensor 18 is emitted from the illumination device 101 as shown in FIG. As light is detected, the output signal increases. When the output signal of the position sensor 18 exceeds the threshold value, the position sensor driver 44 outputs a trigger signal as shown in FIG. Thus, while using the detection signal of the position sensor 18 as a trigger, the measurement controller 48 turns on the optical sensor 19 based on the distance to the illumination device 101 as shown in FIG. At this time, in consideration of the speed of the photometric vehicle 10 and the distance to the illumination device 101, a time difference may be provided between when the trigger signal is output and when the optical sensor 19 is turned on.

  Then, as illustrated in FIG. 6C, the lighting device 101 enters the detectable region S <b> 1 of the optical sensor 19 in a state where the optical sensor 19 is turned on. Thereby, as shown in FIG.7 (e), the optical sensor 19 detects the light radiate | emitted from the illuminating device 101, and an output signal increases. The optical sensor driver 45 converts the output signal of the optical sensor 19 into light intensity data and outputs it to the measurement controller 48. The measurement controller 48 associates the light intensity data with the position information of the photometric vehicle 10 and outputs it to the measurement / analysis unit 51. The measurement / analysis unit 51 compares the light intensity of the illuminating device 101 to be measured with a reference value, and determines that the illuminating device 101 is normal if the light intensity is greater than or equal to the reference value. It is determined as abnormal and the result is stored. Thereafter, the measurement controller 48 turns off the optical sensor 19. In addition, about abnormality determination, you may analyze separately, after implementing multiple times of measurement.

  The photometric vehicle 10 continues to travel on the center line of the runway R at a constant speed and heads for the next lighting device 101. Then, the next lighting device 101 is determined by the same procedure. Thereafter, in the same manner, all the lighting devices 101 constituting the runway center line lamp L1 of the runway R are determined.

<Static measurement>
Next, a method for measuring the light intensity of the illumination device in a stationary state will be described.
For example, when the number of the lighting devices 101 is small as in the ground lamp L2 shown in FIG. 5, it may be better to measure the light intensity while the optical sensor is stationary with respect to the lighting device 101. Even when the number of illumination devices 101 is large, if the light irradiation direction is irregular or different types of structures are mixed, the measurement positions change, so that individual fine adjustments are made. Sometimes it is better to measure the light intensity.

  As shown in FIGS. 1 to 3, when performing a static measurement, the photometric vehicle 10 moves to the vicinity of the illumination device 101 to be measured. Next, the photometric vehicle 10 is stopped, the door 14 is opened, and the slope 15 is pulled out to the ground surface G. Then, the operator manually lowers the stationary measurement unit 20 from the photometric vehicle 10. The stationary measurement unit 20 is connected to the power supply panel 41 of the photometric vehicle 10 via the cable 30. At this time, the operator may carry the input / output terminal 52 to the vicinity of the door 14 and connect it to the power supply panel 11. Next, the operator moves the stationary measurement unit 20 to a position where the gantry 21 covers the lighting device 101.

  Then, as shown in FIGS. 4A to 4C, the positioning unit 29 is used to determine the position of the stationary measurement unit 20 with respect to the illumination device 101. For example, the illumination device 101 is positioned within the square frame of the positioning unit 29 when viewed from directly above, and for example, the center of the illumination device 101 is overlapped with the center C. Thereby, the optical sensor 27 is accurately positioned with respect to the illumination device 101.

  Further, the operator operates the input / output terminal 52 to issue a command to the motor controller 25c to drive the motor 25a and move the actuator 25b up and down. When the actuator 25b moves up and down, the support frame 26 and the optical sensor 27 also move up and down. Thus, the height of the optical sensor 27 is adjusted by the vertical movement means 25.

  Next, the operator operates the input / output terminal 52 to turn on the optical sensor 27 via the optical sensor driver 46. As a result, the light sensor 27 detects the light emitted from the illumination device 101 and outputs the detection signal to the light sensor driver 46. 4A to 4C, an example of the optical path P emitted from the illumination device 101 and incident on the optical sensor 27 is indicated by a broken line.

  Then, the measurement controller 48 and the hub / radio unit 49 determine whether or not the light intensity of the illumination device 101 is equal to or higher than a reference value, and store the result. At this time, since the periphery of the optical sensor 27 is surrounded by the light shielding plate 28, it is possible to suppress external light, for example, light from other illumination devices and moonlight from entering the optical sensor 27, thereby improving measurement accuracy. Can be made.

  Next, the stationary measurement unit 20 is moved to a position that covers the lighting device 101 to be measured next, and stopped. And the light intensity of this illuminating device 101 is measured by the same operation. Thereafter, in the same manner, the lighting devices 101 constituting the grounding lamp L2 are sequentially measured.

Further, the stationary measurement unit 20 may measure the light intensity of the ground-type lighting device. The ground-type lighting device is, for example, a lighting device that constitutes the runway lamp L3.
FIGS. 8A to 8C are diagrams showing a method for stationary measurement of a ground-type lighting device in the present embodiment, FIG. 8A is a top view, FIG. 8B is a side view, c) is a rear view.

  As shown in FIGS. 8A to 8C, the operator moves the stationary measurement unit 20 to a position that covers the ground-type lighting device 102. The illuminating device 102 protrudes from the ground surface G by about several tens of centimeters. Since the height of the lighting device 102 to be measured is known in advance, the stationary measurement unit 20 is designed so that the lower end of the gantry 21 is located above the upper end of the lighting device 21.

  The operator operates the vertical movement means 25 to adjust the height of the optical sensor 27 according to the height of the light emitting surface of the illumination device 102. For example, the position of the optical sensor 27 is set higher than when the lighting device 101 is measured. Then, the light intensity of the illumination device 102 is measured by the same method as when the illumination device 101 is measured.

  When the measurement is completed, the stationary measurement unit 20 is housed in the photometric vehicle 10. Then, the operator drives the photometric vehicle 10 and returns to a predetermined parking place. An external server 100 (see FIG. 3) or its repeater is installed at the parking place. When the photometric vehicle 10 returns to the parking location, the hub / radio unit 49 outputs measurement data to the external server 100 by wireless communication, and the external server 100 stores the measurement data. In addition, the worker starts charging the power supply unit 40 to prepare for the next measurement.

<Effect>
Next, the effect of this embodiment will be described.
In the photometric system 1 according to the present embodiment, the stationary measurement unit 20 capable of stationary measurement is accommodated in the photometric vehicle 10 capable of moving measurement, and the stationary measurement unit 20 can be lowered at an arbitrary place. Thereby, both a movement measurement and a stationary measurement can be performed by one dispatch, and many kinds of airfield lights can be inspected. As a result, the time for occupying the runway for inspection can be shortened.

  Moreover, since the stationary measurement unit 20 is smaller and lighter than the photometric vehicle 10, it can be moved manually. In addition, by making it movable by human power, a driving device such as an engine becomes unnecessary, and it can be made smaller and lighter. As a result, the stationary measurement unit 20 has a small turn and can be quickly and accurately positioned with respect to the illumination device. Thereby, a measurement can be performed efficiently.

  Furthermore, power is supplied to the stationary measurement unit 20 from the power supply unit 40 of the photometric vehicle 10 via the cable 30. For this reason, it is not necessary to provide a power supply unit in the stationary measurement unit 20, and the stationary measurement unit 20 can be further reduced in size and weight.

  Furthermore, the stationary measurement unit 20 is provided with a gantry 21, and a pair of main wheels 22, a pair of auxiliary wheels 23, and a pair of handles 24 are attached to the gantry 21. Thereby, when the operator holds the handle 24 and applies a force, the stationary measuring unit 20 can be moved back and forth, and the direction of the stationary measuring unit 20 can be changed. Further, the distance between the handle 24 and the main wheel 22 is shorter than the distance between the handle 24 and the auxiliary wheel 23. Thereby, the rotating shaft when changing the direction of the stationary measuring unit 20 is located between the main wheels 22 and close to the operator. As a result, the stationary measurement unit 20 is easy to turn and has high operability.

  Furthermore, the lower end of the gantry 21 is located above the upper end of the lighting device. Thereby, the stationary measurement unit 20 can be arranged at a position where the gantry 21 covers the lighting device. As a result, the position of the optical sensor 27 relative to the illumination device can be precisely adjusted using the positioning means 29. Moreover, since the periphery of the optical sensor 27 can be covered by the shielding plate 28, interference of external light can be suppressed and the light intensity of the lighting device can be measured with high accuracy. Thus, by measuring the light intensity of the lighting device in a state where the gantry 21 covers the lighting device, the measurement environment can be controlled to some extent, and high-precision measurement is possible.

  Furthermore, since the stationary measurement unit 20 is provided with a support frame 26 extending in the horizontal direction, a plurality of optical sensors 27 can be attached to the support frame 26. Thereby, the reliability of measurement is improved, and the light distribution of the lighting device can be evaluated. Further, since the rear surface 26r of the support frame 26 to which the optical sensor 27 is attached is curved in an arc shape, the distance from the illumination device to the optical sensor 27 can be made uniform. This improves the accuracy of measurement.

  Furthermore, since the stationary measurement unit 20 is provided with the vertical movement means 25, the plurality of optical sensors 27 can be moved up and down together with the support frame 26. Thereby, the height of the optical sensor 27 can be adjusted according to the height of the light emitting surface of the lighting device, the light emission angle, and the like.

  Furthermore, since the input / output terminal 52 can be connected to the distribution board 42 and the power supply panel 41, the input / output terminal 52 can be moved in or near the vehicle 11. Thereby, for example, the input / output terminal 52 is placed in the vicinity of the driver's seat while the photometric vehicle 10 is traveling, and the operator is alone by bringing the input / output terminal 52 in the vicinity of the door 14 during stationary measurement. Makes it easy to perform both moving and stationary measurements.

  Furthermore, by using a modified welfare vehicle as the vehicle 11 and making the rear part of the stationary measurement unit 20 by modifying a wheelchair, the photometric system 1 can be realized at low cost using a commercially available product. it can. Moreover, since the welfare vehicle and the wheelchair have high structural consistency, it is easy to get on and off the stationary measurement unit 20.

(Second Embodiment)
Next, a second embodiment will be described.
FIG. 9 is a block diagram showing a photometric system according to this embodiment.

  As shown in FIG. 9, in the photometric system 2 according to the present embodiment, the cable 30 (see FIG. 1) is not provided, and a static measurement control 61 including a power supply unit is provided in the static measurement unit 60. ing. Thereby, the stationary measurement unit 60 can perform the stationary measurement completely independently of the photometric vehicle 10.

<Configuration>
The photometric vehicle 10 is provided with a movement measurement control unit 62. The basic configuration of the movement measurement control unit 62 is substantially the same as the control unit 12 (see FIG. 3) in the first embodiment described above. However, while the control unit 12 controls both the mobile measurement unit 13 and the stationary measurement unit 20, the mobile measurement control unit 62 controls only the mobile measurement unit 13 except for data communication with the external server 100. Control. A detailed description of the movement measurement control unit 62 is omitted.

  In addition to the stationary measurement control unit 61, the stationary measurement unit 60 is provided with the gantry 21, the main wheel 22, the auxiliary wheel 23, and the handle 24 shown in FIGS. 4A to 4C. Can be made. Further, the stationary measurement unit 60 is provided with a vertical movement means 25, a support frame 26, an optical sensor 27, a light shielding plate 28, and a positioning means 29, and an illumination device is obtained by the same method as in the first embodiment. Can be measured. The stationary measurement control unit 61 is mounted on the gantry 21.

  The stationary measurement control unit 61 includes a power supply unit 70, a power supply panel 71, a power distributor 72, an IF panel 73, a measurement controller 78, and a measurement / analysis unit 79. The measurement / analysis unit 79 is equipped with input / output means (not shown) for the operator to input / output data. The same applies to the measurement / analysis unit 51. For example, each of the measurement / analysis units 79 and 51 may be configured by a personal computer.

  The power supply unit 70 supplies power to the power supply panel 71 and the voltage divider 72. The power supply panel 71 supplies power to the IF panel 73, the measurement controller 78, and the motor controller 25c. The IF board 73 is provided with an optical sensor driver 46. The optical sensor driver 46 controls the optical sensor 27. The optical sensor driver 46 is connected to the measurement controller 78. The measurement controller 78 and the measurement / analysis unit 79 can be connected to a hub / radio unit 49 mounted on the photometric vehicle 10 by radio or wire. The measurement controller 78, the measurement / analysis unit 79, and the measurement / analysis unit 51 of the movement measurement control unit 62 can be connected to each other wirelessly or by wire.

<Operation>
Next, the operation of the photometry system 2 according to this embodiment will be described.
The movement measurement method in this embodiment is the same as that in the first embodiment described above.

A stationary measurement method in the present embodiment will be described.
At the time of static measurement, the static measurement unit 60 is lowered from the photometric vehicle 10. And the stationary measurement unit 60 is arrange | positioned by a human power in the position where the mount 21 covers the illuminating device used as a measuring object, and a measurement is started. On the other hand, the photometric vehicle 10 can go to move measurement after taking down the stationary measurement unit 60. However, in this case, two or more workers are required.

  In the static measurement unit 60, the static measurement control unit 61 controls the vertical movement means 25 and the optical sensor 27. Specifically, the power supply unit 70 supplies power to the motor controller 25 c via the power supply panel 71, thereby driving the motor 25 a and adjusting the height of the optical sensor 27. The power supply unit 70 supplies power to the optical sensor 27 via the power supply panel 71 and the optical sensor driver 46, and the measurement controller 78 outputs a control signal to the optical sensor 27 via the optical sensor driver 46. Thus, the optical sensor 27 is driven. The detection signal of the optical sensor 27 is transmitted to the optical sensor driver 46, data is transmitted from the optical sensor driver 46 to the measurement controller 78, and data is transmitted from the measurement controller 78 to the measurement / analysis unit 79.

  After the stationary measurement is completed, the stationary measurement unit 60 is stored in the photometric vehicle 10. Then, the measurement controller 78 and the measurement / analysis unit 79 output the measurement result to the hub / wireless unit 49 of the photometric vehicle 10 by wireless or wired.

<Effect>
Next, the effect of this embodiment will be described.
In the present embodiment, since the stationary measurement unit 60 is not connected to the photometric vehicle 10 by a cable or the like, the photometric vehicle 10 and the stationary measurement unit 60 can operate independently of each other. For this reason, for example, the movement measurement of the runway center line lamp L1 by the photometric vehicle 10 and the stationary measurement of the ground belt lamp L2 by the stationary measurement unit 60 can be performed simultaneously.

  Other configurations, operations, and effects of the present embodiment are the same as those of the first embodiment.

  In the first and second embodiments described above, an electric assist means may be provided in the stationary measurement unit in order to assist the movement of the stationary measurement unit. In the first embodiment, the electric assist means can be supplied with electric power from the power supply unit 40 via the cable 30. In the second embodiment, the electric assist means can supply electric power from the power supply unit 70. Can receive.

  In the first and second embodiments described above, the support frame 26 is curved in an arc shape. However, the present invention is not limited to this, and the support frame 26 may have a linear shape extending in the width direction. .

  Furthermore, in the first and second embodiments described above, an example in which a plurality of optical sensors 27 are arranged over substantially the entire length of the support frame 26 has been described, but the present invention is not limited to this. For example, instead of the support frame 26, a rail may be provided, a moving member movable along the rail may be provided, and one or a plurality of optical sensors 27 may be attached to the moving member. Thereby, the light distribution of the lighting device can be evaluated by a small number of optical sensors 27 by measuring the light intensity by the optical sensors 27 while moving the moving member along the rail.

  1, 2: Photometric system, 10: Photometric vehicle, 11: Vehicle, 12: Control unit, 13: Movement measurement unit, 14: Door, 15: Slope, 16: Seat, 17: Support base, 18: Position sensor, 19 : Optical sensor, 20: stationary measurement unit, 21: mount, 21f, 21fa: frame, 22: main wheel, 23: auxiliary wheel, 24: handle, 25: vertical movement means, 25a: motor, 25b: actuator, 25c: Motor controller, 26: support frame, 26r: rear surface, 27: optical sensor, 28: light shielding plate, 29: positioning means, 30: cable, 40: power supply unit, 41: power supply panel, 42: power distribution board, 43: IF board 44: Position sensor driver 45, 46: Optical sensor driver 47: Vehicle speed sensor 48: Measurement controller 49: Hub / wireless unit 51: Total Analysis unit 52: Input / output terminal 53: Display unit 60: Stationary measurement unit 61: Stationary measurement control 62: Movement measurement control unit 70: Power supply unit 71: Power supply panel 72: Power distribution 73: IF board, 78: Measurement controller, 79: Measurement / analysis unit, 100: External server, 101, 102: Lighting device, C: Center, G: Ground surface, L1: Runway center line lamp, L2: Grounding zone Light, L3: Runway light, P: Light path, R: Runway, S1: Detectable area, S2: Detectable area

Claims (5)

Movable platform;
An optical sensor attached to the cradle;
A handle attached to the cradle;
A pair of main wheels rotatably attached to the mount;
An auxiliary wheel attached to the gantry and having a diameter smaller than the diameter of the main wheel and capable of rotating a rotation shaft;
It provided between the pair of main wheels in the upper surface of the frame, and positioning means for assisting the positioning of the frame relative to Littelfuse illumination device by that person viewing from above;
Comprising
The distance between the handle and the main wheel is shorter than the distance between the handle and the auxiliary wheel,
It said cradle while covering the lighting device fixed to the ground, measurable stationary measuring unit a light intensity of the lighting device by the light sensor.   The stationary measurement unit according to claim 1, further comprising a light shielding plate disposed on a side of the optical sensor. The frame further includes a frame that can be fixed to the gantry and that extends in the horizontal direction and has a side surface curved in a concave shape along an arc.
The optical sensor is provided with a plurality, the plurality of optical sensors stationary measuring unit according to claim 1 or 2 attached to said side surface. The stationary measurement unit according to any one of claims 1 to 4 , further comprising a vertical movement unit mounted on the gantry and configured to move the optical sensor in the vertical direction. Stationary measuring unit according to any one of claims 1-4 lower end of the cradle which is located above the upper end of the lighting device.

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