Street light illuminance measuring device and control method thereof

Abstract

The application discloses a street lamp illumination measuring device and a control method thereof, and relates to the technical field of illumination testing. The street lamp illumination measuring device comprises two tracks, a running mechanism, a plurality of illumination meters and a processing component. The running mechanism comprises a crossbar, a driving component and two pulleys, the two pulleys are arranged at the two ends of the crossbar through the driving component, the two tracks are arranged on the two sides of a measuring area, the two pulleys of the running mechanism are arranged on the two tracks, the crossbar and the two tracks form an H shape, the illumination meters are arranged on the running mechanism and are used for acquiring illumination data of street lamps, the processing component is connected with the illumination meters and the running mechanism, the processing component is used for controlling the running mechanism to move on the tracks, and the processing component is used for controlling the illumination meters to collect data at data collection points, so that the data collection efficiency is improved and the measurement precision of street lamp illumination is improved.

Description

[0001] This application is a divisional application of the patent application No. 202110279253.7, titled "Street lamp illuminance measuring device and control method thereof", filed on March 16, 2021. TECHNICAL FIELD

[0002] The present application relates to the technical field of illuminance testing, and in particular to a street lamp illuminance measuring device and control method thereof. BACKGROUND

[0003] The street lamp illuminance measurement is generally measured according to the center point and the four corner point methods in the national standard "Lighting Measurement Methods" (GB / T 5700-2008). The traditional manual measurement method is to first divide the area on the road and distribute points, and then measure the illuminance point by point, and finally the test results are obtained by summarizing. Since the number of illuminance measurement points is generally dozens, it takes at least 1 to 2 hours to complete a test, and the test efficiency is low. In addition, the time span of point-by-point measurement is large, resulting in large measurement error.

[0004] In the related art, the illuminometer or the brightness meter is installed on the car or the handcart, and the illuminance or the brightness of the road surface can be quickly collected by moving the car or the handcart at a certain speed. This method shortens the measurement time, but the test standard requires that the illuminometer should be close to the road surface, and this method is difficult to meet the requirements. And it is difficult to ensure that the vehicle travels according to the established track during the driving process, and it is easy to deviate from the route and cause measurement error.

[0005] In the related art, the roadbed is taken as a reference, and the infrared sensor is used to detect the distance from the roadbed vehicle to ensure the driving path. However, the roadbed often has gaps or greenery, garbage and other obstructions that block the infrared sensor, making it impossible to ensure that the vehicle travels according to the established path. SUMMARY

[0006] In order to solve at least one of the above technical problems, the present application provides a street lamp illuminance measuring device and control method thereof, which can improve the data collection efficiency and improve the measurement accuracy of street lamp illuminance.

[0007] In a first aspect, the present application provides a street lamp illuminance measuring device, comprising: two tracks, a running mechanism, a plurality of illuminometers and a processing component;

[0008] The running mechanism comprises a crossbar, a driving component and two pulleys, and the two pulleys are respectively arranged at the two ends of the crossbar through the driving component;

[0009] The two tracks are used to be placed on both sides of the measurement area;

[0010] The two pulleys of the running mechanism are arranged on the two tracks respectively, so that the horizontal rod and the two tracks form an H shape.

[0011] The illuminometer is arranged on the running mechanism, and the illuminometer is used to acquire the illuminance data of the street lamp.

[0012] The processing component is connected with the illuminometer and the running mechanism respectively, and the processing component is used to control the running mechanism to move on the track and control the illuminometer to collect data at the data collection point.

[0013] In some embodiments, the running mechanism further comprises a plurality of connecting components, the connecting components comprising a fixed ring and a connecting rod, the first end of the connecting rod being connected with the fixed ring, the second end of the connecting rod being connected with the illuminometer, and the fixed ring being sleeved on the horizontal rod.

[0014] In some embodiments, the connecting component further comprises a bottom support connected with the second end of the connecting rod, the first end of the connecting rod being rotatably connected with the fixed ring, the illuminometer being arranged on the bottom support, the bottom of the bottom support being provided with a rolling wheel which can be retracted into the bottom support.

[0015] In some embodiments, the horizontal rod is marked with a scale line, and the middle part of the fixed ring is provided with a gap for observing the scale line on the horizontal rod.

[0016] In some embodiments, the running mechanism further comprises a plurality of connecting components, the connecting components comprising a fixed ring and two connecting rods, the first ends of the two connecting rods being arranged on the two sides of the fixed ring respectively, the second ends of the connecting rods being connected with the illuminometer, and the fixed ring being sleeved on the horizontal rod.

[0017] In some embodiments, the fixed ring is provided with a tensioning mechanism, and the inner diameter of the fixed ring can be adjusted through the tensioning mechanism.

[0018] In some embodiments, the illuminometer is provided with a wireless transmission module, and the illuminometer is connected with the processing component in a wireless transmission mode.

[0019] In a second aspect, the embodiments of the present application further provide a control method of a street lamp illuminance measuring device, which is applied to the street lamp illuminance measuring device of the first aspect, and the control method comprises the following steps:

[0020] Controlling the running mechanism to move on the track;

[0021] Controlling the illuminometer to collect data when the illuminometer on the running mechanism moves to the data collection point.

[0022] In some embodiments, the controlling the light meters on the running mechanism to collect data at the data collection points comprises the following steps:

[0023] acquiring a first distance between the data collection points in the measurement area;

[0024] acquiring a second distance of the movement of the running mechanism;

[0025] controlling the light meters to collect data when the second distance is a multiple of the first distance.

[0026] In some embodiments, the acquiring the second distance of the movement of the running mechanism comprises the following steps:

[0027] acquiring a number of rotations of the pulleys;

[0028] determining the second distance of the movement of the running mechanism according to the number of rotations.

[0029] The technical scheme of the present application has at least one of the following advantages or beneficial effects: the street light illuminance measuring device comprises two tracks, a running mechanism, a plurality of light meters and a processing component, the running mechanism comprises a crossbar, a driving component and two pulleys, the two pulleys are arranged at two ends of the crossbar through the driving component, the two tracks are arranged on both sides of the measurement area, the two pulleys of the running mechanism are arranged on the two tracks respectively, so that the crossbar and the two tracks form an H shape, the light meters are arranged on the running mechanism, the processing component is connected with the light meters and the running mechanism respectively, the processing component is used for controlling the movement of the running mechanism on the tracks, and the processing component is used for controlling the light meters to collect data at the data collection points. The two tracks on both sides of the measurement area are used to limit the running mechanism from deviating from the measurement area during movement, so that the light meters can accurately move to the data collection points, thereby improving the measurement accuracy of the street light illuminance, and the plurality of light meters are arranged on the running mechanism, and the processing component is used to automatically collect data at the data collection points, thereby improving the data collection efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0030] Figure 1 is a top view of the street light illuminance measuring device according to an embodiment of the present application;

[0031] Figure 2 is a schematic diagram of a center point distribution method according to an embodiment of the present application;

[0032] Figure 3 is a schematic diagram of a four-corner point distribution method according to an embodiment of the present application;

[0033] Figure 4 is a side view of the street light illuminance measuring device according to an embodiment of the present application;

[0034] Figure 5is a partial enlarged view of the crossbar according to an embodiment of the present application;

[0035] Figure 6 is a front view of the street light illuminance measuring device according to another embodiment of the present application;

[0036] Figure 7 is a front view of the street light illuminance measuring device according to another embodiment of the present application;

[0037] Figure 8 is a flow chart of the control method of the street light illuminance measuring device according to an embodiment of the present application. DETAILED DESCRIPTION

[0038] The embodiments described in the present application should not be regarded as limiting the present application, and all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.

[0039] In the following description, "some embodiments" are related to a subset of all possible embodiments, but it can be understood that "some embodiments" can be the same subset or different subsets of all possible embodiments, and can be combined with each other without conflict.

[0040] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the present application belongs. The terms used herein are only for the purpose of describing the embodiments of the present application and are not intended to limit the present application.

[0041] The embodiments of the present application provide a street light illuminance measuring device. Referring to Figure 1 , comprising two tracks 110, a running mechanism 120, a plurality of illuminometers 130 and a processing component (not shown in the figure), the running mechanism 120 comprises a crossbar 122, a driving component (not shown in the figure) and two pulleys 121, the two pulleys 121 are respectively arranged at both ends of the crossbar 122 through the driving component. The two pulleys 121 of the running mechanism 120 are respectively placed on the two tracks 110, so that the crossbar 122 and the two tracks 110 form an H shape. The running mechanism further comprises a connecting component for connecting the illuminometers 130, the illuminometers 130 are arranged on the running mechanism. The connecting component comprises a fixed ring 123 and a connecting rod 124, a plurality of fixed rings 123 are sleeved on the crossbar, two connecting rods 124 are connected to each fixed ring 123, the first end of the connecting rod 124 is connected to the fixed ring 123, and the second end of the connecting rod 124 is connected to the fixed ring 123, thereby forming a structure that the illuminometers 130 are symmetrically arranged on both sides of the crossbar 122. This structure of arranging the illuminometers 130 on both sides of the crossbar 122 can accelerate the collection efficiency.

[0042] Referring to Figure 2, the center point method is used to test the street lamp illumination. The measurement area is set between street lamp 1 and street lamp 2. The measurement area is divided into 16*7 small areas. The center of each small area is the data collection point, with a total of 16*7 data collection points. The 7 data collection points in the first column are aligned with street lamp 1, and the 7 data collection points in the last column are aligned with street lamp 2. The two tracks are placed on both sides of the measurement area. Initially, the crossbar is aligned with the dotted line 1 and the position of the fixed ring on the crossbar is adjusted so that the illuminance meter is located on the data collection point. During operation, the processing component controls the movement of the operating mechanism and controls the illuminance meter to collect data at the same time when the crossbar moves to the positions of dotted line 1, dotted line 2, dotted line 3, dotted line 4, dotted line 5, dotted line 6, dotted line 7, and dotted line 8 respectively. The processing component calculates the average illumination according to the following formula:

[0043]

[0044] Where n1 represents the number of small areas in the row of the measurement area, n2 represents the number of small square rows in the column of the measurement area, and E i represents the illuminance measured at the i-th data collection point, and the unit of illuminance is lux. In this embodiment, n1 is substituted with a value of 16, and n2 is substituted with a value of 7.

[0045] Similarly, refer to Figure 3 , you can also use the four-corner point method to test the street lamp illumination. The measurement area is set between street lamp 1 and street lamp 2. The measurement area is divided into 16*7 small areas. A data collection point is set at the vertex of each small area, for a total of 17*8 data collection points. The 8 data collection points in the first column are aligned with street lamp 1, and the 8 data collection points in the last column are aligned with street lamp 2. The two tracks are placed on both sides of the measurement area. Initially, align the crossbar with the dotted line 1 and adjust the position of the fixed ring on the crossbar so that the illuminance meter is located at the data collection point. During operation, the processing component controls the movement of the operating mechanism and controls the illuminance meter to collect data simultaneously when the crossbar moves to the positions of dotted line 1, dotted line 2, dotted line 3, dotted line 4, dotted line 5, dotted line 6, dotted line 7, dotted line 8, and dotted line 9. The processing component calculates the average illumination according to the following formula:

[0046]

[0047] Where n1 represents the number of small areas in the row of the measurement area, n2 represents the number of small square rows in the column of the measurement area, and E θ is the illuminance measured at the four vertices of the measurement area, E0 is the illuminance measured at the data collection points on the four outer edges of the measurement area excluding the four vertices, and E is the illuminance measured at each data collection point within the four outer edges. In this embodiment, n1 is substituted with a value of 16, and n2 is substituted with a value of 7.

[0048] It should be noted that the processing component automatically identifies the field points, sideline points and corner points to quickly complete the data analysis and calculation.

[0049] It should be noted that the illuminometer can also be connected with the horizontal rod through the connecting component of the fixed ring and the connecting rod, and the illuminometer can also be directly and equally spaced on the upper surface of the horizontal rod. The illuminometer can not be symmetrically arranged on both sides of the horizontal rod at the same time, and can only be arranged on one side of the horizontal rod. When the illuminometer is directly and equally spaced on the upper surface of the horizontal rod, a small diameter pulley can be used to minimize the distance between the horizontal rod and the ground, thereby minimizing the distance between the illuminometer and the ground, and more in line with the measurement standard. It can be understood that the arrangement of the illuminometer and the horizontal rod is different, the initial position of the horizontal rod in the measurement area is also different, and the position of the illuminometer when collecting data during movement is also different.

[0050] According to some specific embodiments of the present application, referring to Figure 4 The fixed ring 123 is provided with a tensioning mechanism 210, which can be a combination of a nut and a bolt, or a combination of a bayonet and a slot. When the tensioning mechanism 210 is opened, the position of the fixed ring 123 on the horizontal rod can be adjusted at will. When the tensioning mechanism 210 is closed, the fixed ring 123 can be fixed on the horizontal rod, so that the illuminometer 130 does not shake in the horizontal direction, thereby improving the reliability of the measurement results. The connecting rod 124 is provided with a rotating component 220, which can only rotate the connecting rod in the up-down direction relative to the ground. The connecting rod 124 is connected with the fixed ring 123 and the bottom support 230 through the rotating component 220. The bottom of the bottom support 230 is provided with a roller 240, which can be retracted into the bottom support 230. When the illuminometer 130 moves to the data collection point, the roller 240 is retracted into the bottom support 230, so that the illuminometer 130 is closer to the road surface, and the measured illuminance value is closer to the road surface illuminance. After the illuminometer 130 collects data, the roller 240 lifts the bottom support 230, and the horizontal rod drives it to slide to the next data collection point.

[0051] It should be noted that the connecting rod can be a telescopic rod with adjustable length such as a lead screw, so as to adjust the horizontal distance between the illuminometer and the horizontal rod, and adapt to different point arrangement modes.

[0052] According to some specific embodiments of the present application, referring to Figure 5 The center of the fixed ring 123 is made of transparent material and has a dotted line. The dotted line is on the same straight line as the center axis of the connecting rod. The horizontal rod 122 is provided with a scale line. When adjusting the position of the fixed ring 123 on the horizontal rod 122, the scale line on the horizontal rod 122 and the dotted line on the fixed ring 123 can be referred to, so that the position of the illuminometer can be accurately and quickly adjusted.

[0053] According to some specific embodiments of the present application, referring to Figure 6The shape of the track 110 can be convex, and the edge of the pulley 121 is concave, which is matched with the track 110. Figure 7 The shape of the track 110 can be concave, and the edge of the pulley 121 is not limited, and the pulley 121 can be directly put into the track 110. The track 110 is used to limit the movement path of the pulley 121 in a physical way, so that the crossbar can move in the measurement area without deviating from the measurement area.

[0054] It should be noted that, without affecting the sliding of the pulley 121 in the track 110, a pulley 121 with a small diameter can be used to reduce the height of the crossbar from the road surface, so that the shadow of the pulley 121 does not block the luxmeter, and the diameters of the two pulleys are consistent.

[0055] According to some specific embodiments of the present application, the luxmeter is built-in with a wireless transmission module, which can be Bluetooth, wifi, etc. The luxmeter is connected with the processing component through wireless transmission, the processing component collects and analyzes the data collected by the luxmeter, and its carrier can be a notebook computer or a mobile phone, etc. In addition, the processing component can also control the moving speed of the running mechanism and other moving conditions, and control the data collection time of the luxmeter.

[0056] One embodiment of the present application also provides a control method of the street lamp illuminance measuring device, which is applied to the street lamp illuminance measuring device in the above embodiment. The control method of the control method of the street lamp illuminance measuring device includes but is not limited to steps 810 and 820.

[0057] Step 810: controlling the movement of the running mechanism on the track.

[0058] Step 820: controlling the luxmeter on the running mechanism to collect data when the luxmeter moves to the data collection point.

[0059] In some embodiments, referring to Figure 2 and Figure 3 The measurement personnel plans the length of the rectangular measurement area as L and the width as B according to the actual situation, divides the length L equally to obtain n1 columns, divides the width B equally to obtain n2 rows, and at this time, the measurement area is divided into n1×n2 small areas with equal area, which are generally close to squares. Then the measurement personnel can select the center point distribution method or the four-corner point distribution method to distribute the data collection points.

[0060] Referring to Figure 2, the measuring personnel adopts the center point distribution method, the track placement direction is parallel to the line connecting the street lamp 1 and the street lamp 2, and the two tracks sandwich the measurement area. The horizontal rod in the street lamp illuminance measuring device is sleeved with n2 pairs of illuminometers, the length of the connecting rod is adjusted so that the horizontal distance from the center of each illuminometer to the horizontal axis of the horizontal rod is (L / n1) / 2, the horizontal rod is adjusted to the position of the dotted line 1, then the position of the fixed ring on the horizontal rod is adjusted so that each illuminometer coincides with the data acquisition points on both sides of the dotted line 1, and the distance between each fixed ring is B / n2. The processing component in the street lamp illuminance measuring device can be connected with the upper computer, the measuring personnel inputs the length L of the measurement area and the number n1 of the divided columns into the processing component through the upper computer, the processing component can obtain the first distance between the data sampling points according to the formula L / n1, of course, the measuring personnel can also directly input the first distance between the data sampling points into the upper computer. Then the processing component controls the driving component in the running mechanism to work so that the pulley moves on the track, the driving component works at the same time to control the illuminometers on both sides of the horizontal rod to collect data, then the processing component determines the second distance moved by the running mechanism according to the diameter of the pulley and the number of revolutions of the pulley, when the second distance is an even multiple of the first distance during the movement of the pulley, it can be determined that the illuminometer moves to the next data acquisition point, then all the illuminometers collect data at the same time. When n1 is even, the number of times of collecting data by each illuminometer is n1 / 2, otherwise it is the integer rounded off from n1 / 2, when the number of times of collecting data by each illuminometer reaches the calculated number of times, the processing component controls the driving mechanism to stop working.

[0061] Referring to Figure 3, the measuring personnel can also adopt the four-corner point distribution method, the track placement direction is parallel to the line connecting the street lamp 1 and the street lamp 2, and the two tracks sandwich the measurement area in the middle. The horizontal rod in the street lamp illuminance measuring device is sleeved with n2+1 pairs of illuminometers, the length of the connecting rod is adjusted so that the horizontal distance from the center of each illuminometer to the horizontal axis of the horizontal rod is (L / n1) / 2, the horizontal rod is adjusted to the position of the dashed line 1, and then the position of the fixing ring on the horizontal rod is adjusted so that each illuminometer coincides with the data acquisition points on both sides of the dashed line 1, and the distance between each fixing ring is B / n2. The processing component in the street lamp illuminance measuring device can be connected with the upper computer, and the measuring personnel inputs the length L of the measurement area and the number n1 of the divided columns to the processing component through the upper computer. The processing component can obtain the first distance between the data sampling points according to the formula L / n1, and of course the measuring personnel can also directly input the first distance between the data sampling points to the upper computer. Then the processing component controls the driving component in the running mechanism to work so that the pulley moves on the track. The driving component works at the same time as the illuminometers on both sides of the horizontal rod collect data. Then the processing component determines the second distance moved by the running mechanism according to the diameter of the pulley and the number of revolutions of the pulley. When the second distance is an even multiple of the first distance, it is determined that the illuminometer moves to the next data acquisition point, and then all the illuminometers collect data at the same time. When n1 is even, the number of times the horizontal rod moves is n1 / 2+1, otherwise it is the integer rounded off from n1 / 2. After the number of times each illuminometer collects data reaches the calculated number of times, the processing component controls the driving mechanism to stop working.

[0062] It should be noted that since the illuminometers are symmetrically distributed with the horizontal rod, when the second distance is an even multiple of the first distance, it is determined that the illuminometer moves to the next data acquisition point. When the illuminometers are only distributed on one side of the horizontal rod or a row of illuminometers is directly arranged on the surface of the horizontal rod, it is only necessary to determine that the illuminometer moves to the next data acquisition point when the second distance is a multiple of the first distance. It can be understood that the calculation results of the first distance and the second distance may be infinitely small numbers, and therefore the multiple described here is any number within a threshold range.

[0063] It should be noted that some street lamps can be arranged in the turning area of the road, so that the measurement area can be arranged in an arc shape, and the track is correspondingly arranged in an arc shape, and the control method is correspondingly adjusted. That is, when the wheels reach the arc position, the speeds of the inner and outer wheels will be different, and the calculation of the first distance and the second distance also needs to be calculated according to the data acquisition point distribution on the inner and outer sides and the speed of the pulley.

[0064] The street lamp illuminance measuring device in the embodiment of the present application adopts the track to limit the movement path of the running mechanism, and will not deviate from the measuring area due to the obstacles on the road surface, reduces the probability of the illuminometer deviating from the data collection point, and thus improves the measurement accuracy of the street lamp illuminance. The running mechanism is provided with multiple illuminometers, which can speed up the data collection efficiency. The bottom support is used to place the illuminometer, the horizontal rod is connected with the bottom support to drive the illuminometer to move, which can reduce the height of the illuminometer and is more in line with the measurement requirements. The street lamp illuminance measuring device does not need to use the distance sensor to detect the moving distance of the running mechanism, but directly calculates the moving distance of the running mechanism according to the number of rotation of the pulley through the processing component, so that the illuminometer accurately reaches the data collection point to complete the data collection. The calculation of the moving distance will not be affected by the obstacles on the road surface, and the distance sensor does not need to be set, which reduces the cost of the device.

[0065] The above is a specific description of the preferred embodiment of the present application, but the present application is not limited to the above-mentioned embodiments, and those skilled in the art can make various equivalent modifications or replacements without departing from the spirit of the present application. These equivalent modifications or replacements are all included in the scope defined by the claims of the present application.

Claims

1. A street lamp illumination measuring device, characterized in that: include: Two tracks, running mechanisms, multiple illuminometers, and processing components; The operating mechanism includes a crossbar, a driving component and two pulleys, and the two pulleys are respectively arranged at both ends of the crossbar through the driving component; The two tracks are used to be placed on both sides of the measurement area; The two pulleys of the running mechanism are respectively arranged on the two rails, so that the crossbar and the two rails form an H shape; The illuminometer is arranged on the operating mechanism, and is used to obtain illuminance data of the street lamp; The processing component is connected to the illuminometer and the operating mechanism respectively, the processing component is used to control the operating mechanism to move on the track, and the processing component is used to control the illuminometer to collect data at a data collection point; The operating mechanism further includes a plurality of connecting components, including a fixed ring and a connecting rod, wherein a first end of the connecting rod is connected to the fixed ring, a second end of the connecting rod is connected to the illuminometer, and the fixed ring is sleeved on the crossbar; the connecting rod is a telescopic rod with adjustable length; The connecting component also includes a base, which is connected to the second end of the connecting rod. The first end of the connecting rod is connected to the fixing ring so as to be rotatable up and down. The illuminometer is arranged on the base, and a roller is provided at the bottom of the base, and the roller can be retracted into the base.

2. The street lamp illumination measuring device according to claim 1, characterized in that: The crossbar is marked with scale lines, and a gap is provided in the middle of the fixing ring, and the gap is used for observing the scale lines on the crossbar.

3. The street lamp illumination measuring device according to claim 1, characterized in that: The operating mechanism also includes a plurality of connecting components, which include a fixed ring and two connecting rods. The first ends of the two connecting rods are respectively arranged on both sides of the fixed ring, the second ends of the connecting rods are connected to the illuminometer, and the fixed ring is sleeved on the crossbar.

4. The street lamp illumination measuring device according to claim 1, characterized in that: The fixing ring is provided with a tightening mechanism, through which the inner diameter of the fixing ring can be adjusted.

5. The street lamp illumination measuring device according to claim 1, characterized in that: The illuminometer is provided with a wireless transmission module, and the illuminometer is connected to the processing component via wireless transmission.

6. A control method for a street lamp illumination measuring device, characterized in that: Applied to the streetlight illuminance measuring device according to any one of claims 1 to 5, the control method of the streetlight illuminance measuring device comprises the following steps: Controlling the operating mechanism to move on the track; When the illuminometer on the operating mechanism moves to the data collection point, the illuminometer is controlled to collect data.

7. The control method according to claim 6, characterized in that: When the illuminometer on the operating mechanism moves to the data collection point, controlling the illuminometer to collect data includes the following steps: Obtaining a first distance between data collection points in a measurement area; Acquiring a second distance moved by the operating mechanism; When the second distance is a multiple of the first distance, the illuminometer is controlled to collect data.

8. The control method according to claim 7, characterized in that: The obtaining of the second distance moved by the operating mechanism comprises the following steps: Obtaining the number of rotations of the pulley; A second distance moved by the operating mechanism is determined according to the number of rotations.

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