An automobile headlamp intensity measuring device and measuring method

Abstract

The application belongs to the technical field of car light verification, and particularly relates to a car light intensity measuring device and a measuring method. The device comprises a light meter and a support frame. The support frame comprises a base and a support rod. The base is connected with the support rod, and the support rod is perpendicular to the base. The side of the support rod is connected with the light meter, so that the light receiving surface of the light meter can face the car light during use. The application uses the light meter to measure the light intensity without the cooperation of a reading device, and is convenient for field use. The cooperation of the light meter and the support frame eliminates the arrangement process during measurement, and improves the measurement efficiency and accuracy.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of vehicle lamp verification, and particularly relates to a device and a method for measuring the intensity of an automobile headlamp. BACKGROUND

[0002] Compared with daytime, the visible distance is greatly shortened at night, and the visible distance is only about 80 m through the vehicle lamp. The existing automobile lighting system has the problem of short visibility and poor effect in rainy nights, snowy days or low-visibility fog conditions, which has become one of the safety hazards of automobile driving. In recent years, the related technology of light source has been continuously improved, and the vehicle lamp lighting technology has also developed rapidly. From the original filament bulb to gas discharge lamp, to LED and laser light source, the intensity and quality of vehicle lamp have also developed rapidly. As an important appearance part and safety part of automobile parts, the automobile user has particularly high demand for the appearance and light effect of the automobile headlamp, especially the brightness performance of the road surface. More and more automobile users complain that the road surface brightness uniformity of the vehicle lamp is not good, and fatigue problems are prone to occur after long-time driving. The current domestic regulations such as GB4599 and GB25991 regulations stipulate detailed test areas and test points to ensure the normal and safe driving of the vehicle and the safe driving of the oncoming vehicle.

[0003] Chinese patent CN112539919B discloses a vehicle lamp night vision lighting effect evaluation

[0004] The method is used for verifying the night lighting effect of a vehicle headlamp, and the specific steps include: manufacturing the headlamp according to the national standard and customer demand and installing the headlamp on the vehicle; step 2, selecting a test environment, arranging a plurality of illuminance sensors at equidistant intervals along the test environment, determining test indexes and the weight ratio of each test index; step 3, calibrating the level and height of the vehicle headlamp in step 1, calibrating the low beam cutoff line, and performing low beam contrast evaluation and high beam contrast evaluation; step 4, simulating the real road surface conditions, and performing low beam contrast evaluation and high beam contrast evaluation; step 5, summarizing the test data, and selecting the headlamp that meets the test indexes in step 2. The application not only greatly improves the accuracy and efficiency of the evaluation, but also effectively reduces the cost waste in the design stage and provides important support.

[0005] The device for measuring illuminance in the patent is an illuminance sensor, but using the illuminance sensor has the following disadvantages:

[0006] (1) The illuminance sensor is only a signal conversion element and cannot read data. If data is to be read, a reading device must be connected. It is not convenient to carry when measuring in the wild, and the measurement is not convenient;

[0007] (2) It takes time to arrange the illuminance sensor and the precision is poor.

[0008] (2) It takes time to arrange the illuminance sensor and the precision is poor.

[0009] In view of this, the present application is proposed. SUMMARY

[0010] In order to solve the technical problems existing in the prior art, the present application provides an automobile light intensity measuring device and a measuring method. The light intensity is measured by using an illuminometer without the need for a reading device, which is convenient for field use. The illuminometer is combined with a support frame, so that the illuminometer is not needed to be arranged when measuring, thereby improving the measuring efficiency and accuracy.

[0011] The present application comprises the following technical solutions:

[0012] The first aspect of the present application provides an automobile light intensity measuring device, comprising an illuminometer and a support frame. The support frame comprises a base and a support rod. The base is connected to the support rod, and the support rod is perpendicular to the base. The side surface of the support rod is connected to the illuminometer, so that the light receiving surface of the illuminometer can face the light when in use.

[0013] Further, a projector is arranged on the support rod, and the projector is connected to the illuminometer.

[0014] Further, the straight line on which the projector and the illuminometer are located is not parallel to the support rod.

[0015] Further, the projection of the projector is directed towards the ground.

[0016] Further, the projector and the illuminometer are respectively located at two ends of the support rod.

[0017] Further, the support rod has a telescopic function.

[0018] Further, a handle is arranged at the end of the support rod.

[0019] The second aspect of the present application provides an automobile light intensity measuring method, comprising the automobile light intensity measuring device described above. The measuring method comprises the following steps:

[0020] The light to be tested is installed on the automobile;

[0021] The automobile is arranged in the working environment of the automobile;

[0022] The light is turned on, and a test point is selected in the irradiation area of the light;

[0023] The measuring device is used to measure at the test point.

[0024] Further, the method of measuring at the test point by the measuring device comprises:

[0025] S100: placing the measuring device at the measuring point while making the light receiving surface of the illuminometer of the measuring device face the light, and measuring to obtain intensity;

[0026] S200: repeating step S100 until all measuring points are measured.

[0027] Further, the working environment is a field working environment.

[0028] By adopting the technical scheme, the present application has the following advantages:

[0029] 1. The present application uses the illuminometer to measure the light intensity without the cooperation of a reading device, which is convenient for field use; and the cooperation of the illuminometer and the support frame eliminates the arrangement process when the illuminometer is used for measurement, thereby improving the measurement efficiency and accuracy.

[0030] 2. The support rod has the telescopic function, which is convenient for carrying and storing.

[0031] 3. The measuring device can ensure the measurement height of the illuminometer to be consistent when the illuminometer is used for measurement at each measuring point, thereby avoiding measurement errors.

[0032] 4. The present application uses the projector to project the intensity measured by the illuminometer, which avoids manual data reading, reduces the labor intensity, and improves the accuracy and efficiency of data reading.

[0033] Other features and advantages of the present application will be described in the following description, and some will become apparent from the description, or will be understood from the practice of the present application. The purposes and other advantages of the present application can be achieved and obtained by the structures indicated in the description and the drawings. BRIEF DESCRIPTION OF DRAWINGS

[0034] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description are some embodiments of the present application, and those skilled in the art can obtain other drawings according to these drawings without any creative effort.

[0035] Figure 1 It is a structural schematic diagram of a vehicle headlamp intensity measuring device in an embodiment of the present application;

[0036] Figure 2 It is a use state schematic diagram of a vehicle headlamp intensity measuring device in an embodiment of the present application;

[0037] In the figure: 10-illuminometer, 20-support frame, 21-base, 22-support rod, 30-projector, 40-handle. DETAILED DESCRIPTION

[0038] The following description provides many different embodiments, or examples, for implementing different features of the application. Some embodiments of the present application are described below with additional specificity and detail to provide a thorough understanding of embodiments of the application. It will be clear to those skilled in the art that the described embodiments are merely some of numerous examples of the application, and that numerous other embodiments can be readily developed from the concepts disclosed herein without undue experimentation.

[0039] In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are some of the embodiments of the present application, but not all of the embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative work belong to the protection scope of the present application.

[0040] The embodiment provides a kind of automobile light intensity measuring device, such as Figure 1 As described, including illuminometer 10 and support frame 20, the support frame 20 includes base 21 and support rod 22, the base 21 is connected the support rod 22, the support rod 22 is perpendicular to the base 21, the side of the support rod 22 is connected the illuminometer 10, so that the light receiving surface of the illuminometer 10 can be opposite the light when in use.

[0041] The illuminance sensor used in the prior art is only a signal conversion element, but it cannot read data and needs to be used with a reading device; meanwhile, the reading device also needs to be connected to a power supply network when in use, which is very inconvenient for measurement in the wild; the present application uses illuminometer 10 for measurement, so it does not need to set a reading device to read data, reduces the use of the device, and its use is not limited by the environment, which is also very convenient for use in the wild.

[0042] When using the illuminance sensor in the prior art, it needs to be arranged before measurement, which will consume a lot of time; and in intensity measurement, in order to avoid measurement error, the measurement results of different light circles do not belong to the same light circle (the gradient distribution of high beam and / or low beam of the light is verified by measuring the intensity results of the same light circle), so the height of the illuminance sensor at each measurement point should be consistent, and manual arrangement of a large number of illuminance sensors will have height error, which will result in poor measurement accuracy; and the present application avoids measurement error caused by inconsistent height by cooperation of support rod 22 and illuminometer 10.

[0043] Due to the structure of the illuminometer 10, if it is directly placed on the ground, its light receiving surface cannot be opposite the light, which will result in poor measurement accuracy; therefore, when connecting the illuminometer 10 to the support rod 22, it is necessary to ensure that the light receiving surface of the illuminometer 10 can be opposite the light when in use; for example, Figure 1As shown, the illuminometer 10 is arranged in parallel with the support rod 22.

[0044] It should be noted that, Figure 1 The structure of the support frame 20 is only an example and does not limit the present application. For the base 21 of the support frame 20, the structure should be able to support the support rod 22, ensure the stability of the entire measuring device, and be placed stably.

[0045] In order to obtain the light circle range of the high beam and / or low beam of the headlamp on the ground, the illuminometer 10 needs to be as close to the ground as possible for measurement. Due to the structure limitation of the illuminometer 10, the illuminometer 10 can be as close to the ground as possible after being connected to the support rod 22. Therefore, the volume of the base 21 should be reduced to avoid increasing the distance between the illuminometer 10 and the ground due to the structure of the base 21.

[0046] During the measurement process, the measurement value of the illuminometer 10 needs to be read frequently by manual bending. Therefore, in some embodiments, the support rod 22 is further provided with a projector 30 connected to the illuminometer 10. The measurement value of the illuminometer 10 is projected by the projector 30, which is convenient for manual reading and reduces the labor intensity.

[0047] The connection between the illuminometer 10 and the projector 30 can be connected by a USB connection line. The projector 30 is preferably a micro projector 30.

[0048] The illuminometer 10 can use Konica Minolta T-10A series illuminometer, and the projector 30 can use a Nut M7 micro projector.

[0049] In some embodiments, as shown in Figure 1 The straight line where the projector 30 and the illuminometer 10 are located is not parallel to the support rod 22. In this way, the working areas of the illuminometer 10 and the projector 30 do not interfere with each other, which improves the accuracy of the obtained brightness.

[0050] In some embodiments, as shown in Figure 2 The projection of the projector 30 is towards the ground. In this way, the use convenience of the device is improved.

[0051] In some embodiments, the projector 30 and the illuminometer 10 are respectively located at two ends of the support rod 22. In this way, the volume of the measuring device of the present application can be reduced on the basis of ensuring the use of the projector 30 and the illuminometer 10, the use of materials is reduced, and the cost is reduced.

[0052] In some embodiments, the support rod 22 has a telescopic function. It should be noted that the present application does not limit the telescopic structure of the support rod 22, and the telescopic rod structure in the prior art should be within the protection scope of the present application.

[0053] In some embodiments, the end of the support rod 22 is provided with a handle 40. Such a structure is more conducive to manual movement of the measuring device during measurement, and has the advantage of improving measurement efficiency.

[0054] The present embodiment also provides a vehicle headlamp intensity measuring method, as shown in the accompanying drawings, comprising the vehicle headlamp intensity measuring device described above, and the measuring method comprises the following steps: Figure 2

[0055] The headlamp to be tested is installed on the vehicle;

[0056] The vehicle is arranged in the working environment of the vehicle;

[0057] The headlamp is turned on, and a test point is selected in the irradiation area of the headlamp;

[0058] The measuring device is used to measure at the test point.

[0059] By the measuring method of the present application, when measuring the obtained intensity, the arrangement of the measuring sensor is not required, time is greatly saved, and better measurement accuracy is achieved.

[0060] In some embodiments, the method of measuring at the test point by the measuring device comprises:

[0061] S100: The measuring device is placed at the measurement point, and the light receiving surface of the illuminometer 10 of the measuring device is directed to the headlamp, and the obtained intensity is measured;

[0062] S200: Repeat step S100 until all measurement points are measured.

[0063] By this method, only one measuring device of the present application is required to complete the measurement of the intensity of the vehicle headlamp, reducing the use of devices and costs. It should be noted that the method of measuring the intensity of the vehicle headlamp by using multiple measuring devices should also be within the protection scope of the present application.

[0064] In some embodiments, the working environment is an outdoor working environment. When the measuring device of the present application is used for outdoor measurement, it is not limited by the outdoor environment and is easy to carry. At the same time, the measuring method of the present application has the advantage of high measurement efficiency when used for outdoor environment measurement.

[0065] ​In the description of the present application, it is necessary to point out that, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "linking" should be understood in a broad sense, for example, can be fixed connection, can also be detachable connection, or integral connection; can be mechanical connection, can also be electrical connection or can communicate with each other; can be directly connected, can also be indirectly connected through intermediate medium, can be internal communication of multiple elements or interaction relationship of multiple elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0066] In the description of the present application, it is necessary to understand that all the terms for indicating the position or position relationship are based on the position or position relationship shown in the drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and cannot be understood as a limitation of the present application.

[0067] Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that the technical solutions recorded in the foregoing embodiments can still be modified, or some technical features can be replaced by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. An automobile headlamp intensity measuring device, characterized by comprising: The intensity measuring device for automobile headlamp comprises an illuminometer (10) and a support frame (20), the support frame (20) comprises a base (21) and a support rod (22), the base (21) is connected with the support rod (22), the support rod (22) is perpendicular to the base (21), and the side of the support rod (22) is connected with the illuminometer (10), so that the light receiving surface of the illuminometer (10) can face the headlamp during use; The support rod (22) is further provided with a projector (30), and the projector (30) is connected with the illuminometer (10); The straight line where the projector (30) and the illuminometer (10) are located is not parallel to the support rod (22); The projection of the projector (30) is towards the ground; The projector (30) and the illuminometer (10) are respectively located at two ends of the support rod (22); The support rod (22) has a telescopic function; The end of the support rod (22) is provided with a handle (40).

2. A method of measuring the intensity of an automobile headlight, characterized by, The intensity measuring device for automobile headlamp comprises an illuminometer (10) and a support frame (20), the support frame (20) comprises a base (21) and a support rod (22), the base (21) is connected with the support rod (22), the support rod (22) is perpendicular to the base (21), and the side of the support rod (22) is connected with the illuminometer (10), so that the light receiving surface of the illuminometer (10) can face the headlamp during use; The method comprises the following steps: The headlamp to be tested is installed on the automobile; The automobile is arranged in the working environment of the automobile; The headlamp is turned on, and a test point is selected in the irradiation area of the headlamp; 3. A method of measuring the intensity of a motor vehicle headlamp as claimed in claim 2, characterised in that, The measuring device is used to measure at the test point. The method for measuring at the test point by the measuring device comprises the following steps: S100: the measuring device is placed at the measuring point, and the light receiving surface of the illuminometer (10) of the measuring device faces the headlamp, so that the intensity is obtained by measurement; 4. A method of measuring the intensity of a vehicle headlamp according to claim 2, wherein S200: the step S100 is repeated until the measurement of all measuring points is completed. The working environment is an outdoor working environment.

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