EQUIPMENT AND METHODS FOR DETECTING THE ASSEMBLY STATE OF THE LIGHT GUIDE IN THE TERMINAL

Abstract

The invention proposes a device and method for detecting the assembly state of a light guide in a terminal. The detector consists of a fixture (10), a light source (20), and a light detector module (30). The light path (11) is formed inside the fixture (10), the opening of the light path 11 is exposed to the fixture (10) opposite the assembly position of the light guide (51), and the light source (20) is positioned above the fixture (10). The light detector module (30) is configured to determine the assembly state of the light guide (51) based on the luminous flux value of the light detector. In cases where the light guide (51) is properly assembled, the assembly position is misaligned, the light guide (51) is not assembled, or similarly, the luminous flux value of the light probe that is transmitted to the light probe module (30) via the light path (11) will vary accordingly.In this case, the terminal housing (50) in which the light guide assembly (51) is performed should be placed on the fixture (10), so that after the light detector module (30) receives the light emitted from the light detector source (20), the assembly state of the light guide (51) in the terminal housing (50) can be determined quickly, reliably, accurately, and non-contact based on the obtained luminous flux value of the light detector.

Description

Device and method for detecting assembly status of light guide column in terminal

[0001] This application claims priority to the Chinese patent application filed with the State Intellectual Property Office on June 21, 2021, with application number 202110687705.5 and application name “Device for detecting the assembly status of the light guide column in the terminal”, and the Chinese patent application filed with the State Intellectual Property Office on July 8, 2021, with application number 202110774373.4 and application name “Device and method for detecting the assembly status of the light guide column in the terminal”, the entire contents of which are incorporated by reference into this application. Technical Field

[0002] The present application belongs to the technical field of electronic product detection equipment, and in particular relates to a device and method for detecting the assembly status of a light guide column in a terminal. Background Art

[0003] In recent years, with the continuous advancement of technology, the multifunctionality of mobile phones and other terminals has continued to improve and develop. For example, the terminal can sense external ambient light by transmitting external ambient light into the terminal through a light guide exposed in the listening port or sound outlet, thus realizing the terminal's perception of external ambient light.

[0004] The terminal's ability to accurately perceive ambient light depends on the precise positioning of the light guide within the terminal, making proper installation of the light guide crucial. However, due to its compact size and inconspicuous location inside the terminal, it's difficult to effectively detect proper installation and any missing parts.

[0005] Summary of the Invention

[0006] The purpose of the embodiments of the present application is to provide a device and method for detecting the assembly status of a light guide column in a terminal, which can accurately detect whether the light guide column in the terminal is installed in place and whether there is any missing installation.

[0007] To achieve the above objectives, the technical solution adopted in this application is:

[0008] In a first aspect, a device for detecting the assembly status of a light guide column in a terminal is provided, comprising a fixture, a detection light source, and a light detection module. The fixture is used to support the terminal housing, and a light inlet channel is formed in the fixture. The opening of the light inlet channel exposed in the fixture is directly opposite the installation position of the light guide column in the terminal housing, and the light inlet channel is used to allow light transmitted by the light guide column to pass through.

[0009] The detection light source is arranged above the fixture and is used to emit detection light to the light guide column. The light detection module is arranged inside the fixture and receives the detection light emitted by the detection light source through the light input channel. The light detection module is used to judge the assembly status of the light guide column based on the luminous flux value of the detection light.

[0010] The device for detecting the assembly status of the light guide column in the terminal of the embodiment of the present application has a detection light source arranged above the jig, and the detection light emitted by the detection light can simulate the ambient light of the outside world. The detection light can pass through the position where the light guide column is installed in the terminal shell, and be transmitted to the light detection module located in the jig through the light inlet channel of the jig. Since the light guide column is installed in place in the terminal shell, the installation position is deviated, or it is missing, the luminous flux value of the detection light transmitted to the light detection module through the installation position of the light guide column in the terminal shell and the light inlet channel will show differences accordingly. In this way, when it is necessary to judge the assembly status of the light guide column in the terminal, it is only necessary to place the terminal shell that has completed the light guide column assembly process on the jig and turn on the detection light source. The light detection module receives the detection light emitted by the detection light source and can judge the assembly status of the light guide column in the terminal shell based on the luminous flux value of the detection light, thereby realizing fast, accurate and non-contact detection of the assembly status of the light guide column.

[0011] Optionally, the light detection module includes a detection module, a data processing module and an output module. The detection module is used to obtain the luminous flux value of the detection light emitted from the light input channel into the fixture. The data processing module is used to compare the luminous flux value with a preset threshold to obtain a light guide column assembly status signal. The output module is used to output and / or display the light guide column assembly status signal.

[0012] The output module can be a display device such as a monitor, or a communication module that connects to external cloud devices, such as a WiFi module, a 4G module, a 5G module, or a communication interface that supports I2C (Inter-Intergrated Circuit) or SPI (Serial Peripheral Interface). The data processing module and output module can be integrated with the detection module to reduce the overall size of the light detection module.

[0013] Optionally, the detection module includes a first chip, the first chip is opposite to the opening of the light inlet channel exposed to the fixture, and is used to obtain a first luminous flux value of the detection light incident from the light inlet channel into the fixture along the central axis of the light inlet channel;

[0014] The threshold value includes a first threshold value and a second threshold value, and the data processing module is used to compare the first luminous flux value with the first threshold value and the second threshold value;

[0015] When the first luminous flux value is greater than or equal to the first threshold value and less than or equal to the second threshold value, the data processing module outputs a light guide column installation in place signal;

[0016] When the first luminous flux value is less than the first threshold value, the data processing module outputs a light guide column installation position offset signal;

[0017] When the first luminous flux value is greater than the second threshold value, the data processing module outputs a light guide column missing signal.

[0018] Optionally, the detection module further includes a second chip, the second chip being used to obtain a second luminous flux value of the detection light incident on the fixture from the light input channel, which deviates from the central axis of the light input channel;

[0019] The threshold value further includes a third threshold value and a fourth threshold value, and the data processing module is used to compare the first luminous flux value with the first threshold value and the second threshold value, and to compare the percentage of the ratio of the second luminous flux value to the first luminous flux value with the third threshold value and the fourth threshold value;

[0020] When the first luminous flux value is greater than or equal to the first threshold value and less than or equal to the second threshold value, and the percentage of the ratio of the second luminous flux value to the first luminous flux value is less than or equal to the third threshold value and greater than or equal to the fourth threshold value, the data processing module outputs a light guide column installed in place signal;

[0021] When the first luminous flux value is less than the first threshold value, the data processing module outputs a light guide column installation position offset signal;

[0022] Alternatively, when the percentage of the ratio of the second luminous flux value to the first luminous flux value is greater than a third threshold or less than a fourth threshold, the data processing module outputs a light guide column installation position offset signal;

[0023] When the first luminous flux value is greater than the second threshold value, and the percentage of the ratio of the second luminous flux value to the first luminous flux value is less than a fourth threshold value, the data processing module outputs a light guide missing signal.

[0024] Optionally, the detection module includes a first chip and a second chip, the first chip being opposite to the opening of the light inlet channel exposed to the fixture and being used to obtain a first luminous flux value of the detection light incident from the light inlet channel into the fixture in a direction along the central axis of the light inlet channel, and the second chip being used to obtain a second luminous flux value of the detection light incident from the light inlet channel into the fixture in a direction deviated from the central axis of the light inlet channel;

[0025] The threshold value includes a third threshold value and a fourth threshold value, and the data processing module is used to compare the percentage of the ratio of the second luminous flux value to the first luminous flux value with the third threshold value and the fourth threshold value;

[0026] When the percentage of the ratio of the second luminous flux value to the first luminous flux value is less than or equal to the third threshold value and greater than or equal to the fourth threshold value, the data processing module outputs a light guide column installed in place signal;

[0027] When the percentage of the ratio of the second luminous flux value to the first luminous flux value is greater than a third threshold or less than a fourth threshold, the data processing module outputs a light guide column installation position offset signal;

[0028] When the percentage of the ratio of the second luminous flux value to the first luminous flux value is less than a fourth threshold, the data processing module outputs a light guide column missing signal.

[0029] Optionally, there are two second chips, and the two second chips are respectively arranged on two opposite sides of the first chip.

[0030] Optionally, the jig is formed with an inclined surface for abutting the back of the terminal shell, and a blocking block for limiting the bottom of the terminal shell is provided at the lower edge of the inclined surface of the jig, and the light inlet channel is exposed at the opening of the jig and is formed at the edge of the inclined surface facing the bottom of the jig.

[0031] Optionally, the fixture also includes a base and a support member, the support member is detachably arranged on the base, the inclined surface is formed on the support member, the blocking block is arranged at the lower end of the support member, the light input channel is formed in the support member, and the bottom of the support member is provided with a accommodating cavity for accommodating the light detection module, and the light input channel and the accommodating cavity are connected.

[0032] Optionally, a wiring groove is provided at the bottom of the support member, one side of the wiring groove is exposed to the side wall of the support member, and the other side of the wiring groove is connected to the accommodating cavity, so that the cables connected to the optical detection module can be hidden in the support member.

[0033] Optionally, the support member may be connected to the base by bolts or embedded in the base.

[0034] Optionally, the support member includes an oblique support block and a horizontal support block, wherein the inclined surface is formed on the oblique support block, the oblique support block is detachably mounted on the base, the horizontal support block is mounted on the lower edge of the oblique support block, the blocking block is mounted on the horizontal support block, and the accommodating cavity is formed at the bottom of the horizontal support block. The oblique support block and the horizontal support block may be integrally cast.

[0035] Optionally, the fixture also includes a base and an oblique support block, the inclined surface is formed on the oblique support block, the oblique support block is detachably arranged on the base, the blocking block is arranged on the base and adjacent to the oblique support block, the light input channel is formed in the base, and a receiving cavity for accommodating the light detection module is provided at the bottom of the base, and the light input channel and the receiving cavity are connected.

[0036] Optionally, the projection of the opening of the light inlet channel exposed outside the accommodating cavity along the height direction of the fixture covers the detection module.

[0037] Optionally, the fixture further includes a positioning pin, which is provided on the inclined surface and is used to fix the terminal housing.

[0038] Optionally, the fixture further includes two clamping blocks, which are detachably arranged on the inclined surface and are spaced apart to clamp the terminal housing.

[0039] Optionally, the device for detecting the assembly status of the light guide column in the terminal further includes a box, the fixture is arranged in the box, and the detection light source is arranged on the inner top of the box.

[0040] In a second aspect, a method for detecting the assembly status of a light guide column in a terminal is provided, the method comprising the following steps:

[0041] Providing a jig for supporting the terminal housing;

[0042] A light inlet channel is formed in the fixture so that the opening of the light inlet channel exposed in the fixture is aligned with the installation position of the light guide column in the terminal housing;

[0043] Provide a detection light source and place it above the fixture;

[0044] A light detection module is provided and set in the fixture. The light detection module receives the detection light emitted by the detection light source through the light input channel and determines the assembly status of the light guide column according to the luminous flux value of the detection light.

[0045] The embodiment of the present application provides a method for detecting the assembly status of a light guide column in a terminal. When implemented, a detection light source emits detection light to the installation position of the light guide column in the terminal shell. The detection light passes through the installation position of the light guide column and reaches the light detection module from the light input channel. In this way, the light detection module can obtain the luminous flux value of the detection light. Then, due to the light guide column being installed in place in the terminal shell, deviation in the installation position, or missing installation, the luminous flux value of the detection light transmitted to the light detection module through the installation position of the light guide column in the terminal shell and the light input channel will show corresponding differences. In this way, the light detection module can determine the assembly status of the light guide column in the terminal shell based on the luminous flux value of the detection light, thereby realizing fast, accurate and non-contact detection of the assembly status of the light guide column.

[0046] Optionally, the light detection module receives the detection light emitted from the detection light source through the light input channel and determines the assembly state of the light guide column according to the luminous flux value of the detection light, including:

[0047] The light detection module obtains a first luminous flux value of the detection light incident on the fixture from the light input channel along the central axis of the light input channel, and compares the first luminous flux value with a preset first threshold value and a preset second threshold value;

[0048] When the first luminous flux value is greater than or equal to the first threshold value and less than or equal to the second threshold value, the light detection module outputs a light guide column installation in place signal;

[0049] When the first luminous flux value is less than the first threshold value, the light detection module outputs a light guide column installation position offset signal;

[0050] When the first luminous flux value is greater than the second threshold value, the light detection module outputs a light guide column missing signal.

[0051] Optionally, the light detection module receives the detection light emitted from the detection light source through the light input channel and determines the assembly state of the light guide column according to the luminous flux value of the detection light, including:

[0052] The light detection module obtains a first luminous flux value of the detection light incident on the fixture from the light input channel along the central axis of the light input channel, and compares the first luminous flux value with a preset first threshold value and a preset second threshold value;

[0053] The light detection module obtains a second luminous flux value of the detection light incident on the fixture from the light input channel, which deviates from the central axis of the light input channel, and compares the percentage of the ratio of the second luminous flux value to the first luminous flux value with a preset third threshold value and a fourth threshold value;

[0054] When the first luminous flux value is greater than or equal to the first threshold value and less than or equal to the second threshold value, and the percentage of the ratio of the second luminous flux value to the first luminous flux value is less than or equal to the third threshold value and greater than or equal to the fourth threshold value, the light detection module outputs a light guide column installation position signal;

[0055] When the first luminous flux value is less than the first threshold value, the light detection module outputs a light guide column installation position offset signal;

[0056] Alternatively, when the percentage of the ratio of the second luminous flux value to the first luminous flux value is greater than a third threshold or less than a fourth threshold, the light detection module outputs a light guide column installation position offset signal;

[0057] When the first luminous flux value is greater than the second threshold value, and the percentage of the ratio of the second luminous flux value to the first luminous flux value is less than a fourth threshold value, the optical detection module outputs a light guide column missing signal.

[0058] Optionally, the light detection module receives the detection light emitted from the detection light source through the light input channel and determines the assembly state of the light guide column according to the luminous flux value of the detection light, including:

[0059] The light detection module obtains a first luminous flux value of the detection light incident on the fixture from the light input channel along the central axis of the light input channel, and obtains a second luminous flux value of the detection light incident on the fixture from the light input channel in a direction deviated from the central axis of the light input channel;

[0060] The light detection module compares the percentage of the ratio of the second light flux value to the first light flux value with a preset third threshold value and a fourth threshold value. When the percentage of the ratio of the second light flux value to the first light flux value is less than or equal to the preset third threshold value and greater than or equal to the preset fourth threshold value, the light detection module outputs a signal indicating that the light guide column is installed in place;

[0061] When the percentage of the ratio of the second luminous flux value to the first luminous flux value is greater than a third threshold or less than a fourth threshold, the light detection module outputs a light guide column installation position offset signal;

[0062] When the percentage of the ratio of the second luminous flux value to the first luminous flux value is less than a fourth threshold value, the optical detection module outputs a light guide column missing signal. BRIEF DESCRIPTION OF THE DRAWINGS

[0063] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the embodiments or descriptions of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0064] FIG1 is a schematic structural diagram of a device for detecting the assembly status of a light guide column in a terminal according to an embodiment of the present application;

[0065] FIG2 is a schematic diagram of a partial structure of a device for detecting the assembly status of a light guide column in a terminal according to an embodiment of the present application;

[0066] FIG3 is a cross-sectional view of a portion of the structure of a device for detecting the assembly status of a light guide column in a terminal provided by an embodiment of the present application;

[0067] FIG4 is a partial enlarged view shown at point A in FIG3 ;

[0068] FIG5 is a partial enlarged view of a portion of the structure of a device for detecting the assembly status of a light guide column in a terminal provided by an embodiment of the present application;

[0069] FIG6 is a light path diagram of detection light of a device for detecting the assembly status of a light guide column in a terminal provided by an embodiment of the present application;

[0070] FIG7 is another cross-sectional view of the device for detecting the assembly status of a light guide column in a terminal provided by an embodiment of the present application;

[0071] FIG8 is a diagram illustrating the arrangement of the first chip and the second chip on a PCB board of a device for detecting the assembly status of a light guide column in a terminal provided by an embodiment of the present application;

[0072] FIG9 is a control flow chart of a device for detecting the assembly status of a light guide column in a terminal according to an embodiment of the present application;

[0073] FIG10 is a control logic diagram of a device for detecting the assembly status of a light guide column in a terminal according to an embodiment of the present application;

[0074] FIG11 is a second partial structural diagram of a device for detecting the assembly status of a light guide column in a terminal according to an embodiment of the present application;

[0075] FIG12 is an exploded view of a portion of the structure of the device for detecting the assembly status of the light guide column in the terminal shown in FIG11 ;

[0076] FIG13 is a partial enlarged view shown at point B in FIG12;

[0077] FIG14 is a schematic structural diagram of a support member of a device for detecting the assembly status of a light guide column in a terminal according to an embodiment of the present application;

[0078] FIG15 is a flowchart of the steps of a method for detecting the assembly status of a light guide column in a terminal provided in an embodiment of the present application.

[0079] Among them, the reference numerals in the figures are:

[0080] 10—Fixture 11—Light inlet channel 12—Inclined surface

[0081] 13 - Stop block 14 - Base 15 - Support

[0082] 16 - oblique support block 17 - horizontal support block 18 - positioning pin

[0083] 19—Clamping block 20—Detection light source 30—Light detection module

[0084] 31 - Detection module 32 - First chip 33 - Second chip

[0085] 34—PCB board 40—Box 41—Handle

[0086] 42 - Folding member 50 - Terminal housing 51 - Light guide column

[0087] 111—accommodation cavity 112—wiring groove 121—limiting bar. DETAILED DESCRIPTION

[0088] The following describes embodiments of the present application in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to Figures 1 to 15 are exemplary and are intended to explain the present application, and are not to be construed as limiting the present application.

[0089] In the description of this application, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application.

[0090] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. Throughout the description of this application, "plurality" means two or more, unless otherwise specifically defined.

[0091] In this application, unless otherwise expressly specified or limited, terms such as "mounted," "connected," "connect," and "fixed" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components or interactions between two components. Those skilled in the art will understand the specific meanings of these terms in this application based on specific circumstances.

[0092] To facilitate readers' understanding, the following is an explanation of the technical terms in this application:

[0093] Luminous Flux: refers to the light emitted by a light source with a luminous intensity of 1cd within a solid angle element.

[0094] cd (candela): Chinese translation is candela, which represents the unit of luminous intensity.

[0095] Field of View (FOV): In optical instruments, the angle formed by the two edges of the maximum range through which the image of the target can pass through the lens, with the lens of the optical instrument as the vertex, is called the field of view.

[0096] Attenuation ratio: refers to the ratio of the amplitudes in two adjacent directions in the attenuation oscillation of the optical path.

[0097] With the development of technology, the functions of mobile phones and other terminals are constantly being improved and developed. For example, in recent years, the display screens of mobile phones and other terminals have developed functions such as automatic backlight brightness adjustment. To achieve such functions, the terminal needs to be able to sense changes in the external ambient light.

[0098] To achieve the purpose of sensing external ambient light, for example, the terminal can adopt a solution of disposing a light guide member exposed at the sound outlet. The light guide member guides the external ambient light into the terminal, so that the relevant components in the terminal can obtain parameters such as the luminous flux of the ambient light. Of course, the above-mentioned solution of obtaining ambient light by exposing the light guide column at the sound outlet is only one of many solutions for obtaining ambient light.

[0099] Obviously, the terminal's accuracy in sensing ambient light depends on the accuracy of the light guide's installation position within the terminal. If the light guide is not properly installed, the attenuation ratio of the ambient light transmitted to the terminal will increase, causing the ambient light transmitted to the terminal to flicker, which in turn will cause the terminal's backlight brightness to automatically adjust incorrectly, affecting the user experience of the terminal. If the light guide is missing, ambient light will enter the terminal directly through the sound outlet. At this time, the field of view of the ambient light will be significantly reduced, making it difficult for the relevant components within the terminal to perceive the ambient light, and thus causing the terminal's backlight brightness automatic adjustment function to fail.

[0100] Since the light guide needs to be exposed in small-diameter hole openings such as the sound outlet, the diameter of the light guide is usually less than 0.55 mm and its length is less than or equal to 1.5 mm. This makes it difficult for the operator to intuitively observe whether the assembly position of the light guide column 51 is accurate and whether there is any missing light guide after the light guide is assembled inside the terminal.

[0101] To address the above-mentioned issues, an embodiment of the present application provides a device for detecting the assembly status of a light guide column in a terminal, which can accurately detect whether the light guide column 51 in the terminal is properly installed and whether any light guide column 51 is missing. In this embodiment, the terminal can refer to mobile terminal devices such as mobile phones, tablet computers, and laptop computers, or large devices such as desktop computers and communication base stations.

[0102] Specifically, in the first aspect, referring to Figures 1 to 4 , the apparatus for detecting the assembly status of a light guide column in a terminal of this embodiment includes a fixture 10, a detection light source 20, and a light detection module 30. The fixture 10 is used to support the terminal housing 50. A light inlet channel 11 is formed in the fixture 10. The opening of the light inlet channel 11 exposed in the fixture 10 is aligned with the installation position of the light guide column 51 in the terminal housing 50. The light inlet channel 11 is used to allow light transmitted by the light guide column 51 to pass through.

[0103] More specifically, the detection light source 20 is disposed above the fixture 10 and is used to emit detection light toward the light guide column 51. The detection light source 20 can be disposed directly above the mounting position of the light guide column 51 in the terminal housing 50. The light detection module 30 is disposed within the fixture 10 and receives the detection light emitted from the detection light source 20 through the light inlet channel 11. The light detection module 30 is used to determine the assembly status of the light guide column 51 based on the luminous flux value of the detection light. The light detection module 30 can be disposed directly below the mounting position of the light guide column 51 in the terminal housing 50.

[0104] Specifically, during the detection of the assembly status of the light guide column 51, the terminal shell 50 with the assembled light guide column 51 can be placed on the jig 10, and the detection light source 20 is located directly above the position where the light guide column 51 is installed in the terminal shell 50, and the light detection module 30 is located directly below the position where the light guide column 51 is installed in the terminal shell 50. Since the terminal shell 50 is open, the detection light emitted by the detection light source 20 arranged above the jig 10 can be directly shot to the light guide column 51, and reach the light detection module 30 under the conduction and diffusion of the light guide column 51 or through the installation position of the light guide column 51. Since the conduction of light is bidirectional, the above detection scheme can better reversely simulate the situation where the external ambient light passes through the position where the light guide column 51 is installed in the terminal shell 50 and directly enters the interior of the terminal.

[0105] Please refer to Figures 2 to 4 for further explanation of the device for detecting the assembly status of the light guide column in the terminal provided in an embodiment of the present application: The device for detecting the assembly status of the light guide column in the terminal in an embodiment of the present application, wherein the detection light source 20 is arranged above the fixture 10, and the detection light emitted by the detection light can simulate the external ambient light. The detection light can pass through the position where the light guide column 51 is installed in the terminal shell 50, and be transmitted to the light detection module 30 located in the fixture 10 through the light inlet channel 11 of the fixture 10. Since the light guide column 51 is installed in place in the terminal shell 50, the installation position is deviated, or it is missing, the luminous flux value of the detection light transmitted to the light detection module 30 through the installation position of the light guide column 51 in the terminal shell 50 and the light input channel 11 will show differences accordingly. In this way, when it is necessary to judge the assembly status of the light guide column 51 in the terminal, it is only necessary to place the terminal shell 50 that has completed the assembly process of the light guide column 51 on the jig 10 and turn on the detection light source 20. The light detection module 30 receives the detection light emitted by the detection light source 20, and can judge the assembly status of the light guide column 51 in the terminal shell 50 based on the luminous flux value of the detection light, thereby realizing fast, accurate and non-contact detection of the assembly status of the light guide column 51.

[0106] In other embodiments of the present application, as shown in Figure 4, the light detection module 30 includes a detection module 31, a data processing module and an output module. The detection module 31 is used to obtain the luminous flux value of the detection light emitted from the light input channel 11 into the fixture 10. The data processing module is used to compare the luminous flux value with a preset threshold value to obtain an assembly status signal of the light guide column 51. The output module is used to output and / or display the assembly status signal of the light guide column 51.

[0107] Specifically, during the assembly status detection process of the light guide column 51, it is necessary to evaluate indicators such as the luminous flux value of the detection light received by the detection module 31 of the light detection module 30. When the luminous flux value of the detection light in a certain direction or the percentage of the ratio of the luminous flux values ​​of the detection light in different directions is greater than a certain value, less than a certain value, or between the two above-mentioned values, it means that the assembly status of the light guide column 51 is in an installation offset, missing installation, or installed in place state. Then, the data processing module can first determine the critical value of the luminous flux of the detection light obtained by the detection module 31 or the critical value of the percentage of the ratio between different luminous flux values ​​under different conditions such as the offset state, the missing state and the installed state of the light guide column 51 based on the evaluation index of the above-mentioned optical parameters, and use the above-mentioned critical value as the threshold value. Then, after the detection module 31 obtains the luminous flux value of the detection light, the data processing module can compare the luminous flux value or the percentage of the ratio of different luminous flux values ​​with the corresponding threshold value. Since the state of the light guide column 51 determines the luminous flux value of the detection light transmitted through it, the data processing module can determine the assembly state of the light guide column 51 based on the comparison result, and output the assembly state signal of the light guide column 51 to the output module. For example, the data processing module can transmit a light guide column 51 installed in place signal, a light guide column 51 installation position deviation signal or a light guide column 51 missing signal to the output module based on the comparison result of the luminous flux value and the threshold value, and the output module can output the above-mentioned signal to an external device.

[0108] Exemplarily, the output module can be a display device such as a display, or it can be a communication module connected to an external cloud device, such as a WIFI module, a 4G module, a 5G module, and a communication interface that supports I2C (Inter-Intergrated Circuit) or SPI (Serial Peripheral Interface).

[0109] For example, the data processing module may be a programmable logic controller, etc. The data processing module and the output module may be integrated on the detection module 31 to reduce the overall volume of the light detection module 30 .

[0110] In other embodiments of the present application, as shown in Figures 3 and 5 , as a first method for determining the assembly status of the light guide 51, the detection module 31 includes a first chip 32. The first chip 32 is aligned with the opening of the light inlet channel 11 exposed to the fixture 10 and is used to obtain a first luminous flux value of the detection light incident from the light inlet channel 11 into the fixture 10 along the central axis of the light inlet channel 11.

[0111] Specifically, the threshold includes a first threshold and a second threshold. The data processing module is used to compare the first luminous flux value with the first threshold and the second threshold. When the first luminous flux value is greater than or equal to the first threshold and less than or equal to the second threshold, the data processing module can output a signal that the light guide column 51 is installed in place. When the first luminous flux value is less than the first threshold, the data processing module outputs a signal that the light guide column 51 is installed in place. When the first luminous flux value is greater than the second threshold, the data processing module outputs a signal that the light guide column 51 is missing.

[0112] In this way, the first chip 32 of the detection module 31 can first obtain the first luminous flux value of the detection light incident from the light inlet channel 11 into the fixture 10 along the central axis direction of the light inlet channel 11, and transmit the first luminous flux value to the data processing module, which then compares the first luminous flux value with the first threshold value and the second threshold value. Then, when the first luminous flux value is between the first threshold value and the second threshold value, it indicates that the installation position of the light guide column 51 is correct, and when the first luminous flux is less than the first threshold value, it indicates that the installation position of the light guide column 51 is offset, and when the first luminous flux is greater than the second threshold value, it indicates that the light guide column 51 is missing. In this way, a quick judgment of the assembly status of the light guide column 51 in the terminal housing 50 is achieved simply and reliably.

[0113] In other embodiments of the present application, as shown in Figures 2 to 4 and 6, as a second way to judge the assembly status of the light guide column 51, the detection module 31 includes a first chip 32 and a second chip 33. Among them, the first chip 32 and the second chip 33 are both photosensor chips. The first chip 32 is opposite to the opening of the light inlet channel 11 exposed to the fixture 10, so that the first chip 32 can be used to obtain the first luminous flux value of the detection light entering the fixture 10 from the light inlet channel 11 along the central axis direction of the light inlet channel 11. The second chip 33 is used to obtain the second luminous flux value of the detection light entering the fixture 10 from the light inlet channel 11 that deviates from the central axis direction of the light inlet channel 11.

[0114] Specifically, the thresholds include a first threshold, a second threshold, a third threshold, and a fourth threshold. The first threshold is less than the second threshold, and the fourth threshold is less than the third threshold. The values ​​between the first and second thresholds represent the numerical range of the first luminous flux value when the light guide 51 is in place. The values ​​between the third and fourth thresholds represent the numerical range of the ratio of the second luminous flux value to the first luminous flux value when the light guide 51 is in place.

[0115] More specifically, the data processing module is used to compare the first luminous flux value with the first threshold value and the second threshold value, and to compare the percentage of the ratio of the second luminous flux value to the first luminous flux value with the third threshold value and the fourth threshold value:

[0116] Please refer to Figure 10. When the first luminous flux value is greater than or equal to the first threshold value and less than or equal to the second threshold value, and the percentage of the ratio of the second luminous flux value to the first luminous flux value is less than or equal to the third threshold value and greater than or equal to the fourth threshold value, the data processing module outputs a signal that the light guide column 51 is installed in place. That is, only when the first luminous flux value is within the numerical range between the first threshold value and the second threshold value, and the percentage of the ratio of the second luminous flux value to the first luminous flux value is within the numerical range between the third threshold value and the fourth threshold value, can it be determined that the light guide column 51 is installed in place. This can better improve the accuracy of the judgment of the installation status of the light guide column 51 in the terminal shell 50.

[0117] As long as the conditions that the first luminous flux value is less than the first threshold value, the percentage of the ratio of the second luminous flux value to the first luminous flux value is greater than the third threshold value, or the percentage of the ratio of the second luminous flux value to the first luminous flux value is less than the fourth threshold value are met, it means that the installation position of the light guide column 51 has been offset, resulting in an abnormality in the first luminous flux value or the percentage of the ratio of the second luminous flux value to the first luminous flux value. At this time, the data processing module can output a signal of the installation position offset of the light guide column 51, which also better improves the accuracy of the judgment of the installation position offset of the light guide column 51 in the terminal shell 50.

[0118] When the first luminous flux value is greater than the second threshold value, and the percentage of the ratio of the second luminous flux value to the first luminous flux value is less than the fourth threshold value, this indicates that the light guide column 51 is not placed at the position where it should be installed in the terminal housing, resulting in the detection light not being diffused when passing through the light inlet channel 11. This makes the first luminous flux value greater than the second threshold value, and the percentage of the ratio of the second luminous flux value to the first luminous flux value is less than the fourth threshold value. At this time, the data processing module can output a light guide column missing signal. This also better improves the accuracy of determining whether the light guide column 51 is missing in the terminal housing 50.

[0119] In other embodiments of the present application, as shown in Figures 2 to 4 and 6, as a third way to judge the assembly status of the light guide column 51, the detection module 31 includes a first chip 32 and a second chip 33. The first chip 32 is opposite to the opening of the light inlet channel 11 exposed to the fixture 10, and is used to obtain a first luminous flux value of the detection light incident from the light inlet channel 11 into the fixture 10 along the central axis of the light inlet channel 11. The second chip 33 is used to obtain a second luminous flux value of the detection light incident from the light inlet channel 11 into the fixture 10 that deviates from the central axis of the light inlet channel 11.

[0120] Specifically, the threshold includes a third threshold and a fourth threshold. The data processing module is used to compare the percentage of the ratio of the second luminous flux value to the first luminous flux value with the third threshold and the fourth threshold. When the percentage of the ratio of the second luminous flux value to the first luminous flux value is less than or equal to the third threshold and greater than or equal to the fourth threshold, the data processing module outputs a signal that the light guide column 51 is installed in place. When the percentage of the ratio of the second luminous flux value to the first luminous flux value is greater than the third threshold or less than the fourth threshold, the data processing module outputs a signal that the light guide column 51 is installed in place. When the percentage of the ratio of the second luminous flux value to the first luminous flux value is less than the fourth threshold, the data processing module outputs a signal that the light guide column 51 is missing.

[0121] In this embodiment, the assembly status of the light guide column 51 can be obtained by simply determining the relationship between the percentage of the ratio of the second luminous flux value to the first luminous flux value and the third threshold value and the fourth threshold value, thereby improving the efficiency of the assembly status detection of the light guide column 51.

[0122] For example, when the light guide column 51 is not installed, the detection light does not pass through the diffusion effect of the light guide column 51, but is directly emitted from the light input channel 11 to the second chip 33 and the first chip 32. This also makes the second luminous flux value obtained by the second chip 33 very small, so the percentage of the ratio of the second luminous flux value to the first luminous flux value will approach 1%.

[0123] In other embodiments of the present application, as shown in FIG7 and FIG8 , there are two second chips 33, and the two second chips 33 are respectively arranged on opposite sides of the first chip 32. The first chip 32 and the second chip 33 are arranged on a PCB board 34. Specifically, the number of second chips 33 can be multiple, so that the percentage of the ratio of the second luminous flux value to the first luminous flux value also has multiple corresponding values. In this way, the data processing module can compare the percentage of the ratio of the second luminous flux value to the first luminous flux value with the third threshold value and the fourth threshold value multiple times. Only when the results of the multiple comparisons are all consistent can the assembly status signal of the light guide column 51 be output, thereby better improving the accuracy of the light detection module 30 in judging the assembly status signal of the light guide column 51.

[0124] For example, as shown above, based on the evaluation of optical parameter indicators such as the maximum luminous flux, field of view angle, and attenuation ratio of the ambient light incident on the terminal, the data processing module stores the first threshold, the second threshold, the third threshold, and the fourth threshold accordingly. Specific examples of the above optical parameter indicators, the above threshold settings, and the luminous flux detection items are given, as shown in Table 1:

[0125] Table 1

[0126]

[0127] In this example, the control standards for the detection of the fixture 10 can be set according to the actual requirements of the test terminal: the first threshold is 1000cd, the second threshold is 2000cd, the third threshold is 45% and the fourth threshold is 15%. As can be seen from Table 1, when the light guide column 51 is installed in place, the first luminous flux value detected by the first chip 32 is 1490cd, which falls between the first threshold and the second threshold. The percentage of the ratio of the second luminous flux value to the first luminous flux value obtained by one of the second chips 33 is 38.51%, and the percentage of the ratio of the second luminous flux value to the first luminous flux value obtained by the other second chip 33 is 20.54%. The above ratios all fall between the third threshold and the fourth threshold, meeting the evaluation criteria for the installation of the light guide column 51.

[0128] When the installation position of the light guide 51 is offset, the first luminous flux value detected by the first chip 32 is 1380 cd, which falls between the first and second thresholds. The ratio of the second luminous flux value to the first luminous flux value detected by one second chip 33 is 12.62%, and the ratio of the second luminous flux value to the first luminous flux value detected by the other second chip 33 is 11.19%, both of which are below the fourth threshold. In this case, even though the first luminous flux value falls between the first and second thresholds, the ratio of the second luminous flux value to the first luminous flux value is below the fourth threshold, thus meeting the evaluation criteria for installation offset of the light guide 51.

[0129] When the light guide column 51 is missing, the first luminous flux value detected by the first chip 32 is 37888 cd, which is much larger than the second threshold value. At the same time, the percentage of the ratio of the second luminous flux value to the first luminous flux value obtained by the two second chips 33 is 1%, which is much smaller than the fourth threshold value, and also meets the evaluation criteria for the missing light guide column 51.

[0130] The device for detecting the assembly status of a light guide column within a terminal, provided in this embodiment, accurately detected the assembly status of the light guide column 51 within the terminal housing during actual testing. When the device detected that the light guide column 51 was properly installed, during actual power-on testing of the test terminal, the terminal detected ambient light entering the terminal with a field of view greater than 30° and an attenuation ratio less than 4.5, meeting the terminal's optical parameter requirements for ambient light. This indicates that the light guide column 51 is properly installed within the terminal housing, confirming the detection results of the device.

[0131] More specifically, the control flow and control logic of the assembly status detection device of the light guide column 51 in the terminal are shown in Figures 9 and 10. When the assembly status detection of the light guide column 51 begins, a work instruction can be sent to the detection module 31 by a control device such as an external cloud device. The first chip 32 and the second chip 33 of the detection module 31 immediately start to receive the detection light and output the first luminous flux value and the second luminous flux value respectively. After receiving the first luminous flux value and the second luminous flux value, the data processing module compares the first luminous flux value with the first threshold value and the second threshold value, and compares the percentage of the ratio of the second luminous flux value to the first luminous flux value with the third threshold value and the fourth threshold value to obtain the assembly status detection result of the light guide column 51. The data processing module transmits the assembly status detection result of the light guide column 51 to the output module, and records the serial number of the terminal shell 50 corresponding to the detection result. The output module then displays, stores or transmits the assembly status detection result of the light guide column 51 corresponding to the terminal shell 50 to an external cloud device and a corresponding application, etc.

[0132] In other embodiments of the present application, as shown in Figures 11 to 13, the jig 10 is formed with an inclined surface 12 for abutting the back of the terminal shell 50, and the jig 10 is provided with a blocking block 13 for limiting the bottom of the terminal shell 50 at the lower edge of the inclined surface 12, and the light inlet channel 11 is exposed at the opening of the jig 10 and is formed at the edge of the inclined surface 12 toward the bottom of the jig 10.

[0133] Specifically, since the sound holes and other holes in the terminal device housing are usually opened obliquely at the edge of the terminal housing 50, accordingly, when the terminal is placed vertically or horizontally, the guide column will also be in an oblique position inside the terminal. During the assembly state test, the guide column needs to be in an upright position perpendicular to the bottom surface of the jig 10, so that the luminous flux value of the detection light transmitted and diffused by the light guide column 51 can be accurately detected. Therefore, an inclined surface 12 is formed on the jig 10, so that the terminal is set on the inclined surface 12 and is in an oblique position. Accordingly, the light guide column 51 can be in an upright position perpendicular to the bottom surface of the jig 10. By providing a blocking block 13 at the lower end edge of the inclined surface 12, the blocking block 13 can abut against the lower end edge of the terminal housing 50, preventing the terminal housing 50 from sliding down along the inclined surface 12, so that the terminal housing 50 can be stably placed on the jig 10. The light inlet channel 11 is exposed at the opening of the fixture 10 and is formed at the edge of the inclined surface 12 facing the bottom of the fixture 10. In this way, the light inlet channel 11 can be set directly opposite the sound outlet so that the detection light emitted by the detection light source 20 is directly transmitted and diffused by the light guide column 51 through the light inlet channel 11 to the light detection module 30.

[0134] In other embodiments of the present application, as shown in Figures 11 and 12, the fixture 10 also includes a base 14 and a support member 15, the support member 15 is detachably arranged on the base 14, the inclined surface 12 is formed on the support member 15, the blocking block 13 is arranged at the lower end of the support member 15, the light input channel 11 is formed in the support member 15, and the bottom of the support member 15 is provided with a accommodating cavity 111 for accommodating the light detection module 30, and the light input channel 11 and the accommodating cavity 111 are connected.

[0135] Specifically, as a structural form of the jig 10, the jig 10 includes a base 14, a support member 15 and a blocking block 13. By detachably setting the support member 15 having an inclined surface 12 on the base 14, the jig 10 can select support members 15 with different inclination angles according to terminals of different specifications and structural dimensions, thereby making the jig 10 compatible with terminals of different sizes and specifications, thereby improving the compatibility of the jig 10 with the terminals.

[0136] By opening a receiving cavity 111 at the bottom of the support member 15, the light detection module 30 can be accommodated in the receiving cavity 111, thereby realizing a hidden installation in the fixture 10. On the one hand, it realizes the protection of the light detection module 30, and on the other hand, it provides a closed detection environment for the light detection module 30, so that the light detection module 30 can receive the detection light solely from the light inlet channel 11, thereby avoiding the interference of external ambient light on the light detection module 30.

[0137] Optionally, as shown in Figures 11 and 14, a wiring groove 112 may be further provided at the bottom of the support member 15, with one side opening of the wiring groove 112 exposed to the side wall of the support member 15, and the other side opening of the wiring groove 112 being connected to the accommodating cavity 111, so that the cables connected to the optical detection module 30 can be hidden in the support member 15.

[0138] For example, as a first detachable connection method between the support member 15 and the base 14, the support member 15 can be connected to the base 14 via bolts. This not only achieves a detachable connection between the support member 15 and the base 14, but also improves the connection strength between the support member 15 and the base 14. As a second detachable connection method between the support member 15 and the base 14, the support member 15 can be embedded in the base 14. This can reduce the connection cost between the support member 15 and the base 14, thereby reducing the overall manufacturing cost of the fixture 10.

[0139] In other embodiments of the present application, as shown in Figures 2 and 3, the support member 15 includes an oblique support block 16 and a horizontal support block 17, the inclined surface 12 is formed on the oblique support block 16, the oblique support block 16 is detachably arranged on the base 14, the horizontal support block 17 is arranged at the lower end edge of the oblique support block 16, the blocking block 13 is arranged on the horizontal support block 17, and the accommodating cavity 111 is formed at the bottom of the horizontal support block 17.

[0140] Specifically, the oblique support block 16 of the support member 15 supports the back of the terminal housing 50, while the horizontal support block 17 mounts the blocking block 13 and accommodates the light detection module 30. The opening through which the light inlet channel 11 is exposed from the fixture 10 is formed at the junction of the oblique support block 16 and the horizontal support block 17, so that the opening through which the light inlet channel 11 is exposed from the fixture 10 is aligned with a hole in the terminal housing 50, such as the sound outlet hole provided with the guide post.

[0141] Optionally, the oblique support block 16 and the horizontal support block 17 may be integrally cast, which can reduce the manufacturing cost of the support member 15 on the one hand, and save the manufacturing cost of the support member 15 on the other hand.

[0142] In other embodiments of the present application, as shown in Figures 2 and 7, the fixture 10 also includes a base 14 and an oblique support block 16, the inclined surface 12 is formed on the oblique support block 16, the oblique support block 16 is detachably arranged on the base 14, the blocking block 13 is arranged on the base 14 and adjacent to the oblique support block 16, the light input channel 11 is formed in the base 14, and the bottom of the base 14 is provided with a accommodating cavity 111 for accommodating the light detection module 30, and the light input channel 11 and the accommodating cavity 111 are connected.

[0143] Specifically, as another structural form of the jig 10, the jig 10 includes a base 14, an oblique support block 16, and a blocking block 13. The oblique support block 16 provides oblique support for the terminal housing 50, while the accommodating cavity 111 for the optical detection module 30 is directly formed at the bottom of the base 14. This eliminates the need to remove the oblique support block 16 and the optical detection module from the base 14 when replacing it, thereby improving the maintenance convenience of the jig 10.

[0144] In other embodiments of the present application, as shown in FIG7 , the projection of the opening of the light inlet channel 11 exposed from the accommodating cavity 111 along the height direction of the fixture 10 covers the detection module 31. Specifically, by ensuring that the opening of the light inlet channel 11 exposed from the accommodating cavity 111 covers the detection module 31, the first chip 32 and the second chip 33 of the detection module 31 can both fully receive the detection light transmitted from the light inlet channel 11.

[0145] For example, the overall configuration of the light inlet channel 11 can be in the shape of a "horn", where the closed end of the "horn" is the opening where the light inlet channel 11 is exposed from the fixture 10, and the open end of the "horn" is the opening where the light inlet channel 11 is exposed from the accommodating cavity 111. Thus, by designing the light inlet channel 11 into a "horn" shape, on the one hand, the size of the opening where the light inlet channel 11 is exposed from the fixture 10 can match the size of holes such as the sound outlet of the terminal, and on the other hand, the opening where the light inlet channel 11 is exposed from the accommodating cavity 111 can cover the first chip 32 and the second chip 33 of the detection module 31, so that the first chip 32 and the second chip 33 can fully receive the detection light.

[0146] In other embodiments of the present application, as shown in Figures 2, 3 and 11, the jig 10 further includes a positioning pin 18, which is provided on the inclined surface 12 and is used to fix the terminal housing 50. Specifically, by providing the positioning pin 18 on the inclined surface 12, the positioning pin 18 can be inserted into the groove in the terminal housing 50 to fix the terminal housing 50 on the inclined surface 12, thereby preventing the terminal housing 50 from sliding relative to the inclined surface 12, thereby making the terminal housing 50 more firmly arranged on the jig 10.

[0147] For example, the number of the positioning pins 18 can be designed to be multiple or single according to the number of the grooves on the terminal housing 50 , and the shape of the positioning pin 18 can be designed to be cylindrical or block-shaped according to the shape of the grooves on the terminal housing 50 .

[0148] Optionally, as shown in Figure 11, a limit bar 121 can be provided on the inclined surface 12 near the light inlet channel 11, and the limit bar 121 can abut against the bottom edge of the terminal shell 50 so that the terminal shell 50 can be more firmly set on the fixture 10.

[0149] In other embodiments of the present application, as shown in Figures 2, 3 and 11, the jig 10 further includes two clamping blocks 19, which are detachably disposed on the inclined surface 12. The two clamping blocks 19 are spaced apart to clamp the terminal housing 50. Specifically, by disposing the two clamping blocks 19 on the inclined surface 12, the two clamping blocks 19 can respectively abut against the opposite side edges of the terminal housing 50 disposed on the inclined surface 12, thereby limiting the width or length of the terminal housing 50, so that the terminal housing 50 is more firmly disposed on the jig 10.

[0150] In other embodiments of the present application, as shown in Figures 1 and 2, the device for detecting the assembly status of the light guide column 51 in the terminal further includes a box 40, the fixture 10 is disposed in the box 40, and the detection light source 20 is disposed at the inner top of the box 40. Specifically, by providing the box 40, the box 40 can, on the one hand, achieve better protection for the fixture 10, the terminal housing 50, and the detection light source 20. On the other hand, the box 40 can also provide a closed space for the fixture 10, the terminal housing 50, and the detection light source 20, so that in the space, only the detection light source 20 is the sole light source, thereby improving the accuracy and objectivity of the detection results of the assembly status of the light guide column 51 in the terminal housing 50.

[0151] Exemplarily, one side of the box body 40 has a door panel, a handle 41 is provided on the door panel, and the door panel is hingedly connected to the door frame of the box body 40 through a hinge part 42.

[0152] As shown in FIG2 to FIG4 and FIG15, in a second aspect, the embodiment of the present application further provides a method for detecting the assembly status of a light guide column in a terminal, which specifically includes the following steps:

[0153] A fixture 10 is provided, the fixture 10 is used to support the terminal housing 50, and a light inlet channel 11 is formed in the fixture 10, so that the opening of the light inlet channel 11 exposed in the fixture 10 is aligned with the installation position of the light guide 51 in the terminal housing 50;

[0154] A detection light source 20 and a light detection module 30 are provided. The detection light source 20 is set above the fixture 10, and the light detection module 30 is set inside the fixture 10. The light detection module 30 receives the detection light emitted from the detection light source through the light input channel 11, and determines the assembly status of the light guide column 51 according to the luminous flux value of the detection light.

[0155] Specifically, the sequence of steps in the method for detecting the assembly status of the light guide column in the terminal of this embodiment may be:

[0156] S1: Provide a fixture 10, which is used to support the terminal housing 50;

[0157] S2: forming a light inlet channel 11 in the fixture 10 so that the opening of the light inlet channel 11 exposed in the fixture 10 is aligned with the installation position of the light guide 51 in the terminal housing 50;

[0158] S3: Provide a detection light source 20 and place the detection light source 20 above the fixture 10;

[0159] S4: providing a light detection module 30 , which receives the detection light emitted from the detection light source 20 through the light input channel 11 and determines the assembly state of the light guide column 51 according to the luminous flux value of the detection light.

[0160] The embodiment of the present application provides a method for detecting the assembly status of a light guide column in a terminal. When implemented, the detection light source 20 emits detection light to the installation position of the light guide column 51 in the terminal shell 50. The detection light passes through the installation position of the light guide column 51 and reaches the light detection module 30 from the light input channel 11. In this way, the light detection module 30 can obtain the luminous flux value of the detection light. Then, due to the fact that the light guide column 51 is installed in place in the terminal shell 50, the installation position deviates, or it is missing, the luminous flux value of the detection light transmitted to the light detection module 30 through the installation position of the light guide column 51 in the terminal shell 50 and the light input channel 11 will show differences accordingly. In this way, the light detection module 30 can judge the assembly status of the light guide column 51 in the terminal shell 50 based on the luminous flux value of the detection light, thereby realizing fast, accurate and non-contact detection of the assembly status of the light guide column 51.

[0161] In other embodiments of the present application, the step of "the light detection module 30 receives the detection light emitted from the detection light source 20 through the light input channel 11, and determines the assembly state of the light guide column 51 according to the luminous flux value of the detection light" can be specifically:

[0162] The light detection module 30 obtains a first luminous flux value of the detection light incident from the light inlet channel 11 into the fixture 10 along the central axis of the light inlet channel 11, and compares the first luminous flux value with a preset first threshold value and a preset second threshold value;

[0163] When the first luminous flux value is greater than or equal to the first threshold value and less than or equal to the second threshold value, the data processing module outputs a signal indicating that the light guide column 51 is installed in place;

[0164] When the first light flux value is less than the first threshold value, the light detection module 30 outputs a signal indicating the installation position of the light guide column 51 is offset;

[0165] When the first light flux value is greater than the second threshold value, the light detection module 30 outputs a signal indicating that the light guide column 51 is missing.

[0166] Specifically, the threshold includes a first threshold and a second threshold. The light detection module 30 is used to compare the first luminous flux value with the first threshold and the second threshold. When the first luminous flux value is greater than or equal to the first threshold and less than or equal to the second threshold, the light detection module 30 can output a signal that the light guide column 51 is installed in place. When the first luminous flux value is less than the first threshold, the light detection module 30 outputs a signal that the light guide column 51 is installed in place. When the first luminous flux value is greater than the second threshold, the light detection module 30 outputs a signal that the light guide column 51 is missing.

[0167] In this way, the light detection module 30 can first obtain the first luminous flux value of the detection light entering the fixture 10 from the light inlet channel 11 along the central axis direction of the light inlet channel 11, and compare the first luminous flux value with the first threshold value and the second threshold value. Then, when the first luminous flux value is between the first threshold value and the second threshold value, it indicates that the installation position of the light guide column 51 is correct. When the first luminous flux value is less than the first threshold value, it indicates that the installation position of the light guide column 51 is offset. When the first luminous flux value is greater than the second threshold value, it indicates that the light guide column 51 is missing. In this way, the assembly status of the light guide column 51 in the terminal housing 50 can be quickly and reliably determined.

[0168] In other embodiments of the present application, the step of "the light detection module 30 receives the detection light emitted from the detection light source 20 through the light input channel 11 and determines the assembly state of the light guide column 51 according to the luminous flux value of the detection light" can also be specifically:

[0169] The light detection module 30 obtains a first luminous flux value of the detection light incident from the light inlet channel 11 into the fixture 10 along the central axis of the light inlet channel 11, and compares the first luminous flux value with a preset first threshold value and a preset second threshold value;

[0170] The light detection module 30 obtains a second luminous flux value of the detection light incident on the fixture 10 from the light inlet channel 11 in a direction deviating from the central axis of the light inlet channel 11, and compares the percentage of the ratio of the second luminous flux value to the first luminous flux value with a preset third threshold value and a fourth threshold value;

[0171] When the first luminous flux value is greater than or equal to the first threshold value and less than or equal to the second threshold value, and the percentage of the ratio of the second luminous flux value to the first luminous flux value is less than or equal to the third threshold value and greater than or equal to the fourth threshold value, the light detection module 30 outputs a signal indicating that the light guide column 51 is installed in place;

[0172] When the first light flux value is less than the first threshold value, the light detection module 30 outputs a signal indicating the installation position of the light guide column 51 is offset;

[0173] Alternatively, when the percentage of the ratio of the second luminous flux value to the first luminous flux value is greater than the third threshold or less than the fourth threshold, the light detection module 30 outputs a light guide column 51 installation position offset signal;

[0174] When the first luminous flux value is greater than the second threshold value, and the percentage of the ratio of the second luminous flux value to the first luminous flux value is less than the fourth threshold value, the light detection module 30 outputs a light guide column 51 missing signal.

[0175] Specifically, when the first luminous flux value is greater than or equal to the first threshold value and less than or equal to the second threshold value, and the percentage of the ratio of the second luminous flux value to the first luminous flux value is less than or equal to the third threshold value and greater than or equal to the fourth threshold value, the light detection module 30 outputs a signal that the light guide column 51 is installed in place, that is, only when the first luminous flux value is within the numerical range between the first threshold value and the second threshold value, and the percentage of the ratio of the second luminous flux value to the first luminous flux value is within the numerical range between the third threshold value and the fourth threshold value, can it be determined that the light guide column 51 is installed in place. This can better improve the accuracy of the judgment of the installation status of the light guide column 51 in the terminal shell 50.

[0176] As long as the conditions that the first luminous flux value is less than the first threshold value, the percentage of the ratio of the second luminous flux value to the first luminous flux value is greater than the third threshold value, or the percentage of the ratio of the second luminous flux value to the first luminous flux value is less than the fourth threshold value are met, it means that the installation position of the light guide column 51 has been offset, resulting in an abnormality in the first luminous flux value or the percentage of the ratio of the second luminous flux value to the first luminous flux value. At this time, the light detection module 30 can output a signal indicating the installation position offset of the light guide column 51, which also better improves the accuracy of the judgment of the installation position offset of the light guide column 51 in the terminal shell 50.

[0177] When the first luminous flux value is greater than the second threshold value, and the percentage of the ratio of the second luminous flux value to the first luminous flux value is less than the fourth threshold value, this indicates that the light guide column 51 is not placed at the position where it should be installed in the terminal housing, resulting in the detection light not being diffused when passing through the light inlet channel 11. This makes the first luminous flux value greater than the second threshold value, and the percentage of the ratio of the second luminous flux value to the first luminous flux value is less than the fourth threshold value. At this time, the light detection module 30 can output a light guide column missing signal. This also better improves the accuracy of determining whether the light guide column 51 is missing in the terminal housing 50.

[0178] In other embodiments of the present application, the step of "the light detection module 30 receives the detection light emitted from the detection light source 20 through the light input channel 11 and determines the assembly state of the light guide column 51 according to the luminous flux value of the detection light" can also be specifically:

[0179] The light detection module 30 obtains a first luminous flux value of the detection light incident from the light input channel 11 into the fixture 10 along the central axis of the light input channel 11, and obtains a second luminous flux value of the detection light incident from the light input channel 11 into the fixture 10 in a direction deviated from the central axis of the light input channel 11;

[0180] The light detection module 30 compares the percentage of the ratio of the second light flux value to the first light flux value with a preset third threshold value and a fourth threshold value. When the percentage of the ratio of the second light flux value to the first light flux value is less than or equal to the preset third threshold value and greater than or equal to the preset fourth threshold value, the light detection module 30 outputs a signal indicating that the light guide column 51 is installed in place.

[0181] When the percentage of the ratio of the second luminous flux value to the first luminous flux value is greater than the third threshold or less than the fourth threshold, the light detection module 30 outputs a signal indicating the installation position of the light guide column 51 is offset;

[0182] When the percentage of the ratio of the second luminous flux value to the first luminous flux value is less than a fourth threshold value, the light detection module 30 outputs a signal indicating that the light guide column 51 is missing.

[0183] Specifically, in this embodiment, it is only necessary to determine the percentage of the ratio of the second luminous flux value to the first luminous flux value and the relationship between the third threshold value and the fourth threshold value to obtain the assembly status result of the light guide column 51, thereby improving the efficiency of the assembly status detection of the light guide column 51.

[0184] In summary, the device and method for detecting the assembly status of the light guide column in the terminal provided in the embodiment of the present application can enable the light detection module 30 to obtain the luminous flux value of the detection light emitted from the assembly position of the light guide column 51 in the terminal shell 50 to the light detection module 30, and judge the assembly status of the light guide column 51 in the terminal shell 50 based on the differentiated characteristics of the luminous flux value of the detection light passing through the assembly position of the light guide column 51 when the light guide column 51 is missing, the installation position is offset, and the light guide column 51 is installed in place, thereby realizing fast, accurate and non-contact detection of the assembly status of the light guide column 51.

[0185] The above are only preferred embodiments of the present application and are not intended to limit the present application. Any modifications, equivalent replacements, and improvements made within the spirit and principles of the present application should be included in the scope of protection of the present application.

Claims

1. A device for detecting the assembly status of a light guide column inside a terminal, characterized in that: include: A fixture is provided to support the terminal housing. A light-gathering channel is formed inside the fixture. The opening of the light-gathering channel is exposed outside the fixture and is directly opposite the installation position of the light guide post inside the terminal housing. The light-gathering channel is used to allow light transmitted by the light guide post to pass through. A detection light source is disposed above the fixture and is used to emit detection light onto the light guide column; An optical detection module is disposed within the fixture and receives detection light emitted from the detection light source through the light inlet channel. The optical detection module is used to determine the assembly status of the light guide column based on the luminous flux value of the detection light.

2. The terminal internal light guide post assembly status detection device according to claim 1, characterized in that: The optical detection module includes a detection module, a data processing module, and an output module. The detection module is used to acquire the luminous flux value of the detection light incident on the fixture from the light inlet channel. The data processing module is used to compare the luminous flux value with a preset threshold to obtain a light guide post assembly status signal. The output module is used to output and / or display the light guide post assembly status signal.

3. The terminal internal light guide post assembly status detection device according to claim 2, characterized in that: The detection module includes a first chip, which is exposed in the fixture opposite the light inlet channel, and is used to acquire a first luminous flux value of the detection light incident on the fixture from the light inlet channel along the central axis of the light inlet channel. The threshold includes a first threshold and a second threshold, and the data processing module is used to compare the first luminous flux value with the first threshold and the second threshold. When the first luminous flux value is greater than or equal to the first threshold and less than or equal to the second threshold, the data processing module outputs a signal indicating that the light guide column is installed in place. When the first luminous flux value is less than the first threshold, the data processing module outputs the installation position offset signal of the light guide post; When the first luminous flux value is greater than the second threshold, the data processing module outputs a signal indicating that the light guide column is missing.

4. The terminal internal light guide post assembly status detection device according to claim 3, characterized in that: The detection module further includes a second chip, which is used to acquire a second luminous flux value of the detection light incident on the fixture from the light inlet channel in a direction deviating from the central axis of the light inlet channel; The threshold also includes a third threshold and a fourth threshold. The data processing module is used to compare the first luminous flux value with the first threshold and the second threshold, and to compare the percentage of the ratio of the second luminous flux value to the first luminous flux value with the third threshold and the fourth threshold. When the first luminous flux value is greater than or equal to the first threshold and less than or equal to the second threshold, and the percentage of the ratio of the second luminous flux value to the first luminous flux value is less than or equal to the third threshold and greater than or equal to the fourth threshold, the data processing module outputs a signal indicating that the light guide column is installed in place. When the first luminous flux value is less than the first threshold, the data processing module outputs the installation position offset signal of the light guide post; Alternatively, when the percentage of the ratio of the second luminous flux value to the first luminous flux value is greater than the third threshold or less than the fourth threshold, the data processing module outputs the light guide post installation position offset signal; When the first luminous flux value is greater than the second threshold, and the percentage of the ratio of the second luminous flux value to the first luminous flux value is less than the fourth threshold, the data processing module outputs a signal indicating that the light guide column is missing.

5. The terminal internal light guide post assembly status detection device according to claim 2, characterized in that: The detection module includes a first chip and a second chip. The first chip is exposed in the opening of the fixture opposite the light inlet channel and is used to obtain a first luminous flux value of the detection light entering the fixture from the light inlet channel along the central axis of the light inlet channel. The second chip is used to obtain a second luminous flux value of the detection light entering the fixture from the light inlet channel in a direction deviating from the central axis of the light inlet channel. The threshold includes a third threshold and a fourth threshold, and the data processing module is used to compare the percentage of the ratio of the second luminous flux value to the first luminous flux value with the third threshold and the fourth threshold; When the percentage of the ratio of the second luminous flux value to the first luminous flux value is less than or equal to the third threshold and greater than or equal to the fourth threshold, the data processing module outputs a signal that the light guide column is installed in place; When the percentage of the ratio of the second luminous flux value to the first luminous flux value is greater than the third threshold or less than the fourth threshold, the data processing module outputs the installation position offset signal of the light guide column; When the percentage of the ratio of the second luminous flux value to the first luminous flux value is less than the fourth threshold, the data processing module outputs a signal indicating that the light guide column is missing.

6. The terminal internal light guide post assembly status detection device according to claim 4 or 5, characterized in that: There are two second chips, which are respectively disposed on opposite sides of the first chip.

7. The terminal internal light guide post assembly status detection device according to any one of claims 1 to 5, characterized in that: The fixture has an inclined surface for abutting against the back of the terminal housing. A blocking block for limiting the bottom of the terminal housing is provided at the lower edge of the inclined surface. The light-gathering channel is exposed at the opening of the fixture and is formed at the edge of the inclined surface facing the bottom of the fixture.

8. The terminal internal light guide post assembly status detection device according to claim 7, characterized in that: The fixture further includes a base and a support member. The support member is detachably mounted on the base. The inclined surface is formed on the support member. The blocking block is disposed at the lower end of the support member. The light-inlet channel is formed inside the support member. The bottom of the support member has an accommodating cavity for accommodating the light detection module. The light-inlet channel and the accommodating cavity are connected.

9. The terminal internal light guide post assembly status detection device according to claim 8, characterized in that: The support includes an inclined support block and a horizontal support block. The inclined surface is formed on the inclined support block. The inclined support block is detachably mounted on the base. The horizontal support block is disposed on the lower edge of the inclined support block. The blocking block is disposed on the horizontal support block. The receiving cavity is formed at the bottom of the horizontal support block.

10. The terminal internal light guide post assembly status detection device according to claim 7, characterized in that: The fixture further includes a base and an inclined support block. The inclined surface is formed on the inclined support block, which is detachably mounted on the base. The blocking block is mounted on the base and adjacent to the inclined support block. The light inlet channel is formed inside the base. The bottom of the base has an accommodating cavity for accommodating the light detection module. The light inlet channel and the accommodating cavity are connected.

11. The terminal internal light guide post assembly status detection device according to any one of claims 8 to 10, characterized in that: The projection of the light-gathering channel, which is exposed in the cavity, along the height direction of the fixture, covers the detection module.

12. The terminal internal light guide post assembly status detection device according to any one of claims 8 to 10, characterized in that: The fixture also includes a positioning pin, which is disposed on the inclined surface and used to fix the terminal housing.

13. The terminal internal light guide post assembly status detection device according to any one of claims 8 to 10, characterized in that: The fixture also includes two clamping blocks, which are detachably disposed on the inclined surface. The two clamping blocks are spaced apart and used to clamp the terminal housing.

14. The terminal internal light guide post assembly status detection device according to any one of claims 1 to 13, characterized in that: The terminal internal light guide column assembly status detection device also includes a housing, the fixture is disposed inside the housing, and the detection light source is disposed on the inner top of the housing.

15. A method for detecting the assembly status of a light guide post within a terminal, characterized in that: The steps include: providing a fixture for supporting the terminal housing; A light-gathering channel is formed within the fixture, such that the opening of the light-gathering channel exposed outside the fixture is directly opposite the mounting position of the light guide post inside the terminal housing; A detection light source is provided and positioned above the fixture; A light detection module is provided and disposed within the fixture. The light detection module receives detection light emitted from the detection light source through the light inlet channel and determines the assembly status of the light guide column based on the luminous flux value of the detection light.

16. The method for detecting the assembly state of the light guide post inside the terminal according to claim 15, characterized in that: The optical detection module receives detection light emitted from the detection light source through the light inlet channel, and determines the assembly state of the light guide post based on the luminous flux value of the detection light, including: The optical detection module acquires a first luminous flux value of the detection light incident on the fixture from the light inlet channel along the central axis of the light inlet channel, and compares the first luminous flux value with a preset first threshold and a second threshold. When the first luminous flux value is greater than or equal to the first threshold and less than or equal to the second threshold, the optical detection module outputs a signal indicating that the light guide post is installed in place. When the first luminous flux value is less than the first threshold, the optical detection module outputs the installation position offset signal of the light guide post; When the first luminous flux value is greater than the second threshold, the optical detection module outputs a signal indicating that the light guide column is missing.

17. The method for detecting the assembly state of the light guide post inside the terminal according to claim 15, characterized in that: The optical detection module receives detection light emitted from the detection light source through the light inlet channel, and determines the assembly state of the light guide post based on the luminous flux value of the detection light, including: The optical detection module acquires a first luminous flux value of the detection light incident on the fixture from the light inlet channel along the central axis of the light inlet channel, and compares the first luminous flux value with a preset first threshold and a second threshold. The optical detection module acquires a second luminous flux value of the detection light incident on the fixture from the light inlet channel in a direction deviating from the central axis of the light inlet channel, and compares the percentage of the ratio of the second luminous flux value to the first luminous flux value with a preset third threshold and a fourth threshold. When the first luminous flux value is greater than or equal to the first threshold and less than or equal to the second threshold, and the percentage of the ratio of the second luminous flux value to the first luminous flux value is less than or equal to the third threshold and greater than or equal to the fourth threshold, the optical detection module outputs a signal indicating that the light guide post is installed in place. When the first luminous flux value is less than the first threshold, the optical detection module outputs the installation position offset signal of the light guide post; Alternatively, when the percentage of the ratio of the second luminous flux value to the first luminous flux value is greater than the third threshold or less than the fourth threshold, the optical detection module outputs the installation position offset signal of the light guide post; When the first luminous flux value is greater than the second threshold, and the percentage of the ratio of the second luminous flux value to the first luminous flux value is less than the fourth threshold, the optical detection module outputs a signal indicating that the light guide column is missing.

18. The method for detecting the assembly state of the light guide post inside the terminal according to claim 15, characterized in that: The optical detection module receives detection light emitted from the detection light source through the light inlet channel, and determines the assembly state of the light guide post based on the luminous flux value of the detection light, including: The optical detection module acquires a first luminous flux value of the detection light incident on the fixture from the light inlet channel along the central axis of the light inlet channel, and acquires a second luminous flux value of the detection light incident on the fixture from the light inlet channel in a direction deviating from the central axis of the light inlet channel. The optical detection module compares the percentage of the ratio of the second luminous flux value to the first luminous flux value with a preset third threshold and a preset fourth threshold. When the percentage of the ratio of the second luminous flux value to the first luminous flux value is less than or equal to the preset third threshold and greater than or equal to the preset fourth threshold, the optical detection module outputs a signal that the light guide post is installed in place. When the percentage of the ratio of the second luminous flux value to the first luminous flux value is greater than the third threshold or less than the fourth threshold, the optical detection module outputs the installation position offset signal of the light guide post; When the percentage of the ratio of the second luminous flux value to the first luminous flux value is less than the fourth threshold, the optical detection module outputs a signal indicating that the light guide column is missing.

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