A mobile phone distance sensor accuracy testing device

Abstract

The utility model discloses a mobile phone distance sensor accuracy test device, including: a workbench for placing a mobile phone to be tested; a lifting component, the lifting component includes a sleeve and a movable tube, wherein the sleeve is vertically fixed to the workbench, the movable tube can be movably inserted in the sleeve and can be lifted up and down by a driving mechanism arranged in the sleeve; a clamp fixed at the upper end of the movable tube, the clamp can detachably clamp a shading plate; an indication component, the indication component includes a power supply, a photoresistor, and a prompt light, when the mobile phone to be tested changes from a bright screen to a dark screen, the luminous state of the prompt light changes, and the tester can accurately grasp the screen-off timing of the mobile phone to be tested according to the change in the luminous state of the prompt light. The utility model solves the problem in the prior art that it is difficult for the tester to accurately grasp the screen-off timing of the mobile phone to be tested because the line of sight is blocked by the shading plate during the detection process.

Description

Technical Field

[0001] The utility model relates to the technical field of mobile phone detection, in particular to a mobile phone distance sensor accuracy testing device. Background Art

[0002] The distance sensor is also called a displacement sensor. Since the distance sensor is installed in the mobile phone, when the user is answering or making a call, the user puts the mobile phone close to the head, and the distance sensor can measure the distance between the user and the mobile phone. When it reaches a certain distance, it notifies the screen to turn off, and lights up the screen again when it is taken away. This can prevent the user from accidentally touching the phone when answering the phone, which is convenient for operation and saves more power. The accuracy of the mobile phone distance sensor directly affects the actual experience of the user. In order to improve the quality of mobile phones, the accuracy test of the mobile phone distance sensor is particularly important. The existing detection steps are to manually place the mobile phone to be tested on the test platform, use a shading plate to simulate a human face, and as the shading plate moves from top to bottom, the mobile phone to be tested changes from a bright screen to a dark screen, and then measure the distance between the distance sensor of the mobile phone to be tested and the corresponding point of the shading plate when the screen is turned off to calculate the accuracy. During the detection, because the human eye is easily blocked by the shading plate when observing and the subjective observation of the tester is difficult to accurately grasp the timing of turning off the screen, the accuracy of the test work is greatly affected.

[0003] The information disclosed in this background technology section is only intended to increase the understanding of the overall background of the present invention, and should not be regarded as acknowledging or suggesting in any form that the information constitutes the prior art already known to a person skilled in the art. Utility Model Content

[0004] In order to overcome the defects of the prior art, a mobile phone distance sensor accuracy testing device is now provided to solve the problem in the prior art that it is difficult for testers to accurately grasp the timing of turning off the screen of the mobile phone to be tested.

[0005] In order to achieve the above object, a mobile phone distance sensor accuracy test device is provided, comprising:

[0006] A workbench for placing the mobile phone to be tested;

[0007] A lifting assembly, comprising a sleeve and a movable tube, wherein the sleeve is vertically fixed to the workbench, the movable tube is movably inserted into the sleeve and extends to the outside of the sleeve, and a driving mechanism for driving the movable tube is provided in the sleeve;

[0008] A fixture is fixedly mounted on the upper end of the movable tube, wherein the fixture holds a shading plate, and the shading plate is located directly above the screen of the mobile phone to be tested;

[0009] The indicating component includes a power supply, a photoresistor arranged opposite to the screen, and a prompt light installed on the shading plate. The power supply, the photoresistor and the prompt light are connected in series to form a loop. After the setting height of the shading plate is changed, the distance sensor in the mobile phone to be tested senses the shading plate to change the state of the screen. Based on the change in the state of the screen, the resistance value of the photoresistor changes accordingly, so that the luminous state of the prompt light changes synchronously.

[0010] Furthermore, the outer wall of the movable tube is provided with scale lines, and the scale lines are arranged along the axial direction of the movable tube.

[0011] Furthermore, the shading plate is provided with a distance measuring sensor for collecting the distance between the distance sensor and the shading plate, the distance measuring sensor is connected to a microcontroller, and the microcontroller is connected to a display.

[0012] Furthermore, the distance measuring sensor is an ultrasonic distance measuring sensor.

[0013] Furthermore, a slide groove is provided on the inner wall of the sleeve, and the slide groove is arranged along the axial direction of the sleeve. A sliding block is provided on the outer wall of the movable tube, and the sliding block is slidably arranged in the slide groove.

[0014] Furthermore, the driving mechanism comprises:

[0015] A vertically arranged motor is fixedly arranged at the bottom of the inner cavity of the sleeve;

[0016] The lead screw is coaxially connected to the output shaft of the motor. The movable tube is formed with an internal thread, and the lead screw is threadedly connected to the movable tube.

[0017] Furthermore, the shading plate is arranged in the same direction as the screen of the mobile phone to be tested.

[0018] Furthermore, the warning light is an LED light.

[0019] The beneficial effect of the utility model is that the mobile phone distance sensor accuracy testing device of the utility model utilizes the resistance value of the photoresistor to change with the luminous state of the screen of the mobile phone to be tested, thereby synchronously changing the luminous state of the prompt light in the circuit. The tester can intuitively and accurately grasp the timing of the change of the screen state of the mobile phone to be tested (from the screen on to the screen off, or the screen off to the screen on) by only changing the luminous state of the prompt light, thereby improving the detection efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Other features, objects and advantages of the present application will become more apparent by reading the detailed description of non-limiting embodiments made with reference to the following drawings:

[0021] Figure 1 This is a schematic diagram of the structure of a mobile phone distance sensor accuracy testing device according to an embodiment of the utility model;

[0022] Figure 2 The present invention is a circuit diagram of a mobile phone distance sensor accuracy testing device according to an embodiment of the present invention. DETAILED DESCRIPTION

[0023] The present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the relevant utility model, rather than to limit the utility model. It is also necessary to explain that, for ease of description, only the parts related to the utility model are shown in the accompanying drawings.

[0024] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0025] like Figure 1 As shown, the utility model provides a mobile phone distance sensor accuracy testing device, comprising: a workbench 1, a lifting component 2, a clamp 3, a shading plate 4, and an indication component 5.

[0026] The workbench 1 is used to place the mobile phone to be tested 6. The screen of the mobile phone to be tested is set upward.

[0027] The lifting assembly 2 includes a sleeve 21 and a movable tube 22 .

[0028] Specifically, the sleeve 21 is vertically fixed to the workbench 1. The movable tube 22 is movably inserted in the sleeve 21 and extends to the outside of the sleeve 21. A driving mechanism for driving the movable tube 22 is provided in the sleeve 21. The driving mechanism can have a variety of driving modes, including hydraulic driving, pneumatic driving, motor driving, etc.

[0029] The clamp 3 is fixed to the upper end of the movable tube 22. The clamp 3 detachably clamps the sunshade 4. The clamp includes a vertical sleeve and a base. The vertical sleeve is sleeved on the upper end of the movable tube. The base is connected to the side of the sleeve. Two clamping plates are formed on the side of the base away from the vertical sleeve. The clamping plates are arranged in the horizontal direction. The two clamping plates are arranged in the vertical direction. A clamping space is formed between the two clamping plates. The sunshade has a first side and a second side opposite to each other. The first side of the sunshade is embedded in the clamping space.

[0030] The shading plate 4 is an opaque plate. In this embodiment, the shading plate is a plastic plate. In some embodiments, the shading plate is a wooden board or a metal plate. When the shading plate is at a preset height, it can be sensed by the distance sensor of the mobile phone to be tested.

[0031] In this embodiment, the shading plate 4 is kept parallel to the workbench 1. Specifically, the surface of the shading plate is arranged parallel to the screen of the mobile phone to be tested.

[0032] An indication component 5 is mounted on the shading plate 4. The indication component 5 includes a power supply, a photoresistor, and a warning light. The photoresistor, the power supply, and the warning light are connected in series to form a loop.

[0033] Specifically, the light-transmitting window of the photoresistor is aligned with the screen of the mobile phone 6 to be tested to ensure that the photoresistor can fully receive the light emitted by the screen of the mobile phone 6 to be tested. The prompt light is installed in a position that is easy for the tester to observe. In this embodiment, the prompt light is installed on the upper surface of the shading plate 4. When the shading plate 4 is far away from the screen of the mobile phone 6 to be tested (the distance between the shading plate and the screen is greater than the sensing threshold of the distance sensor), the screen of the mobile phone 6 to be tested is in a bright screen state. At this time, the photoresistor senses the light of the screen of the mobile phone to be tested, and the resistance value becomes smaller, thereby increasing the current in the circuit, that is, the prompt light becomes brighter; when the shading plate 4 drops and the distance between the shading plate and the screen is less than or equal to the sensing threshold of the distance sensor, the distance sensor in the mobile phone 6 to be tested senses the shading plate 4, and the screen of the mobile phone 6 to be tested changes from a bright screen to an off screen state. At this time, the resistance value of the photoresistor increases, the current in the circuit decreases, and the prompt light becomes darker.

[0034] This device utilizes the property that the resistance of the photoresistor changes with the on / off state of the screen of the mobile phone to be tested, thereby synchronously affecting the lighting state of the prompt light in the circuit. The tester only needs to observe the change in the lighting state of the prompt light to intuitively and accurately grasp the timing when the screen of the mobile phone to be tested changes from on to off.

[0035] As a preferred implementation, Figure 2 As shown, the indicating component 5 includes a power supply, a photoresistor R1, a voltage-dividing resistor R2, an electric control switch and a warning light L. The electric control switch is a transistor, a field effect transistor, an electromagnetic relay, etc. In the present embodiment, the electric control switch is a transistor Q. The two ends of the photoresistor R1 are respectively connected to one end of the voltage-dividing resistor R2 and the negative electrode of the power supply. The other end of the voltage-dividing resistor R2 is connected to the positive electrode of the power supply. The connection point between the photoresistor R1 and one end of the voltage-dividing resistor R2 is connected to the base of the transistor Q. The collector of the transistor Q is connected to the positive electrode of the power supply via the warning light L. The emitter of the transistor Q is connected to the negative electrode of the power supply.

[0036] When the shading plate 4 is far away from the screen of the mobile phone 6 to be tested, the screen of the mobile phone 6 to be tested is in a bright screen state. At this time, the photoresistor R1 is affected by the light of the screen of the mobile phone 6 to be tested, and the resistance value is small. The voltage divided by the photoresistor R1 is small, the collector and emitter of the transistor Q are in a cut-off state, and the prompt light L is off. After the height of the shading plate 4 is lowered, when the distance sensor of the mobile phone 6 to be tested senses the shading plate 4, the screen of the mobile phone 6 to be tested changes from bright screen to off screen. At this time, the resistance value of the photoresistor R1 increases, the voltage divided by the photoresistor R1 increases, the collector and emitter of the transistor Q are turned on, and the prompt light L is lit.

[0037] The utility model discloses a device for testing the accuracy of a mobile phone distance sensor, wherein the inner wall of the sleeve 21 is provided with a slide groove along the axial direction of the sleeve 21. The outer wall of the movable tube 22 is formed with a slider, which is slidably arranged in the slide groove. The movable tube 22 can be lifted and lowered more stably. A motor is installed at the bottom of the inner cavity of the sleeve 21. The output shaft of the motor is coaxially connected with a screw rod. The inner wall of the movable tube 22 is provided with a thread. The screw rod is threadedly connected to the movable tube 22, so that the movable tube 22 can be lifted and lowered by the motor.

[0038] The outer wall of the movable tube 22 is provided with scale lines along the axial direction of the movable tube 22. The tester can know the height of the sunshade by the scale lines.

[0039] A distance measuring sensor is installed on the shading plate 4. The distance measuring sensor is used to collect the distance between the distance sensor of the mobile phone 6 to be tested and the shading plate 4.

[0040] In this embodiment, the distance measuring sensor is an ultrasonic distance measuring sensor. The ultrasonic distance measuring sensor has the advantages of strong anti-interference ability, high measurement accuracy, strong stability and low cost. Specifically, the ultrasonic distance measuring sensor is connected to a microcontroller. The microcontroller is connected to a display. The data collected by the ultrasonic distance measuring sensor is displayed on the display through the microcontroller, and the tester can very conveniently see the test results on the display.

[0041] The mobile phone distance sensor accuracy test device of the utility model has an LED lamp (light emitting diode) as the prompt light. Compared with traditional light bulbs, LED lamps have a longer service life and are more energy-saving and environmentally friendly.

[0042] The above description is only a preferred embodiment of the present application and an explanation of the technical principles used. Those skilled in the art should understand that the scope of the utility model involved in the present application is not limited to the technical solution formed by a specific combination of the above technical features, but should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the concept of the utility model. For example, the above features are replaced with the technical features with similar functions disclosed in the present application (but not limited to) by each other to form a technical solution.

Claims

1. A mobile phone distance sensor accuracy testing device, characterized in that: include: A workbench for placing the mobile phone to be tested; A lifting assembly, comprising a sleeve and a movable tube, wherein the sleeve is vertically fixed to the workbench, the movable tube is movably inserted into the sleeve and extends to the outside of the sleeve, and a driving mechanism for driving the movable tube is provided in the sleeve; A fixture is fixedly mounted on the upper end of the movable tube, wherein the fixture holds a shading plate, and the shading plate is located directly above the screen of the mobile phone to be tested; The indicating component includes a power supply, a photoresistor arranged opposite to the screen, and a prompt light installed on the shading plate. The power supply, the photoresistor and the prompt light are connected in series to form a loop. After the setting height of the shading plate is changed, the distance sensor in the mobile phone to be tested senses the shading plate to change the state of the screen. Based on the change in the state of the screen, the resistance value of the photoresistor changes accordingly, so that the luminous state of the prompt light changes synchronously.

2. A mobile phone distance sensor accuracy testing device according to claim 1, characterized in that: The outer wall of the movable tube is provided with scale lines, and the scale lines are arranged along the axial direction of the movable tube.

3. A mobile phone distance sensor accuracy testing device according to claim 1, characterized in that: The shading plate is provided with a distance sensor for collecting the distance between the distance sensor and the shading plate, the distance sensor is connected to a microcontroller, and the microcontroller is connected to a display.

4. A mobile phone distance sensor accuracy testing device according to claim 3, characterized in that: The distance measuring sensor is an ultrasonic distance measuring sensor.

5. A mobile phone distance sensor accuracy testing device according to claim 1, characterized in that: The inner wall of the sleeve is provided with a slide groove, and the slide groove is arranged along the axial direction of the sleeve. The outer wall of the movable tube is provided with a slider, and the slider is slidably arranged in the slide groove.

6. A mobile phone distance sensor accuracy testing device according to claim 5, characterized in that: The driving mechanism comprises: A vertically arranged motor is fixedly arranged at the bottom of the inner cavity of the sleeve; The lead screw is coaxially connected to the output shaft of the motor. The movable tube is formed with an internal thread, and the lead screw is threadedly connected to the movable tube.

7. A mobile phone distance sensor accuracy testing device according to claim 1, characterized in that: The shading plate is arranged in the same direction as the screen of the mobile phone to be tested.

8. A mobile phone distance sensor accuracy testing device according to claim 1, characterized in that: The warning light is an LED light.

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