Detection device of camera module
By designing a camera module detection device that includes a selection switch and multiple power supply circuits, the problem that the prior art cannot meet the large voltage testing requirements of special camera modules is solved, and the flexibility of power adaptation and production efficiency are improved.
Patent Information
- Application Number
- CN202411719551.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-27
- Publication Date
- 2025-03-11
AI Technical Summary
The existing camera module detection device cannot meet the testing requirements of special camera modules when they need to use a large voltage of 5-10V.
A detection device for a camera module is designed, including a test tool, a closing fixture, a first power supply circuit, a second power supply circuit and a selection switch. By selecting the switch to connect different power circuits, the camera module can be provided with different types of operating power supplies.
The power adaptation of different camera modules is achieved, reducing production costs and improving production efficiency.
Smart Images
Figure CN119603443A_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the field of camera detection technology, and in particular to a detection device for a camera module. Background Art
[0002] With the development of electronic technology, the integration degree of electronic products is getting higher and higher, the structure is getting finer and finer, the processes are increasing, and the manufacturing process is becoming more and more complicated. In this way, some potential defects will inevitably occur in the manufacturing process, such as unstable components, welding voids, poor contact, etc. In order to expose these defects as early as possible and improve the qualified rate of products leaving the factory, manufacturers will conduct pre-shipment inspections on products, that is, to apply a variety of comprehensive external stresses to electronic products, simulate the working environment of the products, expose the hidden dangers of electronic products in the production process in advance, and screen out unqualified products for analysis and processing.
[0003] During the research process of conceiving and forming this application, the applicant discovered that the current in-factory inspection of camera products mainly tests camera modules, and the operating voltage of the test tooling used is in the range of 0-3.3V. This cannot meet the testing requirements when a high voltage of 5-10V is required for special camera modules (for example, when silver glue is excited). Summary of the invention
[0004] In order to alleviate the above problems, the present application provides a detection device for a camera module, wherein the detection device for the camera module comprises a test fixture, a closed fixture, a first power circuit, a second power circuit, and a selection switch; The control end of the selection switch is connected to the output end of the test fixture; The first input end of the selection switch is connected to the output end of the first power supply circuit, and the second input end of the selection switch is connected to the output end of the second power supply circuit; The output end of the selection switch is connected to the input end of the closing fixture.
[0005] Optionally, the detection device of the camera module further includes a filter capacitor module, and the filter capacitor module is connected between the test tool and the closed fixture.
[0006] Optionally, the detection tooling of the camera module further includes a pull-up resistor module, and the test tooling is connected to the closing fixture via a signal of the pull-up resistor module.
[0007] Optionally, the second power supply circuit is a boost circuit, and an input end of the boost circuit is connected to an output end of the first power supply circuit.
[0008] Optionally, the boost circuit includes an inductor unit, a diode unit, a first resistor unit, a second resistor unit, a first capacitor unit and a boost control chip; The first end of the inductor unit is connected to the output end of the first power supply circuit, and the second end of the inductor unit is connected to the anode of the diode unit; The cathode of the diode unit is connected to the first end of the first resistor unit and the first end of the first capacitor unit; The second end of the first resistor unit is connected to the first end of the second resistor unit, and the second ends of the second resistor unit and the first capacitor unit are grounded; The first input terminal of the boost control chip is connected to the first end of the inductor unit, the second input terminal of the boost control chip is connected to the second end of the inductor unit, the third input terminal of the boost control chip is connected to the common end of the first resistor unit and the second resistor unit, and the fourth input terminal of the boost control chip is grounded.
[0009] Optionally, the boost circuit further includes a third resistance unit and a second capacitance unit; The first end of the third resistance unit is connected to the second end of the inductance unit, and the second capacitance unit is connected between the second end of the third resistance unit and ground.
[0010] Optionally, the boost circuit further includes a third capacitor unit, and a first end of the third capacitor unit is connected between the first end of the inductor unit and ground.
[0011] Optionally, the first capacitor unit includes a ceramic capacitor and an electrolytic capacitor connected in parallel.
[0012] Optionally, the selection circuit includes a first switch element and a relay; The control end of the first switch element is connected to the test fixture, and the input end of the first switch element is connected to a preset voltage; The output end of the first switch element is connected to the first end of the coil loop of the relay, and the second end of the coil loop of the relay is grounded; The first input end of the relay is connected to the output end of the first power circuit, and the second input end of the relay is connected to the output end of the second power circuit; The output end of the relay is connected to the input end of the closing fixture.
[0013] Optionally, the selection circuit further includes a fourth resistance unit, a first end of the fourth resistance unit is connected to the test fixture, and a second end of the fourth resistance unit is connected to the control end of the first switch element.
[0014] Optionally, the first switch element is an NPN transistor.
[0015] The detection device of the camera module provided in the present application connects the output end of the first power supply circuit by selecting the first input end of the switch, and connects the output end of the second power supply circuit by the second input end of the switch, so as to respectively select the corresponding power supply to provide working power for the camera module. By switching the line selection, the working power provided by the test device can adapt to different camera modules, thereby reducing production costs and improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] The drawings herein are incorporated into the specification and constitute a part of the specification, illustrate embodiments consistent with the present application, and are used together with the specification to explain the principles of the present application. In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the description of the embodiments are briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor.
[0017] Figure 1 This is a flow chart of a camera module detection method according to an embodiment of the present application.
[0018] Figure 2 This is a connection diagram of a detection device according to an embodiment of the present application.
[0019] Figure 3 FIG. 1 is a schematic diagram of a boost circuit according to an embodiment of the present application.
[0020] Figure 4 FIG. 1 is a schematic diagram of a selection circuit according to an embodiment of the present application.
[0021] Figure 5 4 is a circuit connection diagram of a first power supply circuit according to an embodiment of the present application.
[0022] Figure 6 FIG. 4 is a circuit connection diagram of a boost circuit according to an embodiment of the present application.
[0023] The realization of the purpose, functional features and advantages of this application will be further described in conjunction with the embodiments and with reference to the accompanying drawings. The above-mentioned drawings have shown clear embodiments of this application, which will be described in more detail later. These drawings and textual descriptions are not intended to limit the scope of the concept of this application in any way, but to illustrate the concept of this application to those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION
[0024] Exemplary embodiments will be described in detail herein, examples of which are shown in the accompanying drawings. When the following description refers to the drawings, the same numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the following exemplary embodiments do not represent all implementations consistent with the present application. Instead, they are merely examples of devices and methods consistent with some aspects of the present application as detailed in the appended claims.
[0025] It should be noted that, in this article, the terms "include", "comprises" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "includes a ..." does not exclude the existence of other identical elements in the process, method, article or device including the element. In addition, components, features, and elements with the same name in different embodiments of the present application may have the same meaning or different meanings, and their specific meanings need to be determined by their explanation in the specific embodiment or further combined with the context of the specific embodiment.
[0026] It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.
[0027] First embodiment The present application provides a method for detecting a camera module. Figure 1 This is a flow chart of a camera module detection method according to an embodiment of the present application.
[0028] Please refer to Figure 1 In one embodiment, the camera module detection method includes: S10: Obtain a module category of the camera module to be tested, where the module category includes a first category and a second category.
[0029] For example, in the production process, when the camera module needs to be tested, the camera module to be tested can be placed in a test fixture, and then the module category of the camera module in the test fixture can be identified. The module category of the camera module can be classified into multiple different categories so that different test configurations can be performed during the test.
[0030] S20: When a camera module of the first category is detected, a first power instruction is generated to select a first power supply to provide working power to the camera module of the first category; and / or, when a camera module of the second category is detected, a second power instruction is generated to select a second power supply to provide working power to the camera module of the second category.
[0031] Exemplarily, different camera modules correspond to different operating voltages. When a camera module of the first category is identified, the first power supply can be controlled to provide the corresponding operating voltage to it, and when a camera module of the second category is identified, the second power supply can be controlled to provide the corresponding operating voltage to it.
[0032] Optionally, the step of obtaining the module category of the camera module to be tested includes: Acquire characteristic data of the workstation to be tested, and identify the module category of the camera module according to the characteristic data.
[0033] Exemplarily, the features of the camera module can be classified, summarized and identified through an algorithm.
[0034] Optionally, the step of obtaining characteristic data of the workstation to be measured may include: The module image of the station to be tested is retrieved to extract the appearance features of the camera module on the station to be tested.
[0035] Exemplarily, by performing image recognition through module images, the module category of the camera module can be classified and identified according to the appearance characteristics of the camera module.
[0036] Optionally, the step of obtaining characteristic data of the workstation to be measured may include: Scan the module code of the station to be tested and retrieve the coding features of the camera module on the station to be tested.
[0037] For example, by performing coding identification through module coding, the module category of the camera module can be classified and identified according to the coding characteristics of the camera module. The module coding can be a coding pattern that is easy to identify, such as a QR code or a barcode, or a coding method such as numbers or text.
[0038] Optionally, the step of obtaining characteristic data of the workstation to be measured may include: The magnetic field map of the workstation to be tested is detected to identify the magnetic characteristics of the camera module on the workstation to be tested.
[0039] Illustratively, magnetic detection is performed through different magnetic layouts of module settings to generate a magnetic field map of the camera module, and the module category of the camera module can be classified and identified based on the magnetic characteristics of the camera module.
[0040] Optionally, the step of obtaining characteristic data of the workstation to be measured may include: The fixture status of the workstation to be tested is read to obtain the test fixture characteristics of the camera module on the workstation to be tested.
[0041] For example, different camera modules can match different fixture states, so that different camera modules are set on fixtures in different states for detection. When the camera module is detected, the module category of the camera module is classified and identified by identifying the fixture state characteristics.
[0042] Optionally, the camera module detection method includes: When generating the first power supply instruction, controlling the selection switch to be in the first state to turn on the first power supply circuit, so that the first power supply circuit provides the first working voltage for the camera module; When the second power supply instruction is generated, the control selection switch is in the second state to turn on the second power supply circuit, so that the second power supply circuit provides a second operating voltage for the camera module.
[0043] For example, by setting a selection switch between the camera module and different power supply circuits, different power supplies can be provided to the camera module to be tested under different instructions by controlling the selection switch.
[0044] Second embodiment The present application provides a detection device for a camera module. Figure 2 This is a connection diagram of a detection device according to an embodiment of the present application.
[0045] Please refer to Figure 2 Exemplarily, the detection device of the camera module includes a test tool 1, a closing fixture 2, a first power supply circuit 3, a second power supply circuit 4 and a selection switch 5.
[0046] The control end of the selection switch 5 is connected to the output end of the test fixture 1; the first input end of the selection switch 5 is connected to the output end of the first power supply circuit 3, and the second input end of the selection switch 5 is connected to the output end of the second power supply circuit 4; the output end of the selection switch 5 is connected to the input end of the closing fixture 2.
[0047] Exemplarily, the camera module 6 is connected to the closed fixture 2 to perform necessary tests. Different camera modules 6 correspond to different operating voltages. The test fixture 1 can be a test box or a test tool, which serves as a bridge between the host computer and the camera under test, and the host computer controls the test fixture 1 to implement the test action on the camera under test. During the production test process, when a camera module of the first category is identified, the test fixture 1 can control the first power supply provided by the first power supply circuit 3 through the selection switch 5, and provide the corresponding operating voltage to the camera under test of the first category through the closed fixture 2. When a camera module of the second category is identified, the second power supply provided by the second power supply circuit 4 can be controlled through the selection switch 5, and the corresponding operating voltage can be provided to the camera under test of the second category through the closed fixture 2.
[0048] Optionally, the detection device of the camera module further includes a filter capacitor module 7 , and the filter capacitor module 7 is connected between the test tool 1 and the closed fixture 2 .
[0049] Exemplarily, the filter capacitor can filter the voltage and current sent by the test tool to prevent voltage and current fluctuations from interfering with the test.
[0050] Optionally, the detection device of the camera module further includes a pull-up resistor module 8 , and the test tool 1 is connected to the closing fixture 2 via the signal of the pull-up resistor module 8 .
[0051] Exemplarily, the pull-up resistor module can improve the load capacity of the signal sent by the test tool to enhance the test effect.
[0052] Optionally, the second power supply circuit is a boost circuit and / or a buck circuit.
[0053] Exemplarily, the first power supply circuit and the second power supply circuit may have a common input voltage. By boosting and / or reducing the voltage of the second power supply circuit, a voltage different from that of the first power supply circuit can be provided.
[0054] Figure 3 FIG. 1 is a schematic diagram of a boost circuit according to an embodiment of the present application.
[0055] like Figure 3 As shown, optionally, the boost circuit includes an inductor unit L, a diode unit D, a first resistor unit R1, a second resistor unit R2, a first capacitor unit C1 and a boost control chip CP.
[0056] The first end of the inductor unit L is connected to the output end of the first power circuit (i.e. Figure 3 In the embodiment of the present invention, the second end of the inductor unit L is connected to the anode of the diode unit D.
[0057] The cathode of the diode unit D is connected to the first end of the first resistor unit R1 and the first end of the first capacitor unit C1, serving as the output end of the boost circuit (i.e. Figure 3 medium Vout).
[0058] The second end of the first resistance unit R1 is connected to the first end of the second resistance unit R2, and the second ends of the second resistance unit R2 and the first capacitance unit C1 are grounded.
[0059] The first input end of the boost control chip CP is connected to the first end of the inductor unit L, the second input end of the boost control chip CP is connected to the second end of the inductor unit L, the third input end of the boost control chip CP is connected to the common end of the first resistor unit R1 and the second resistor unit R2, and the fourth input end of the boost control chip CP is grounded.
[0060] Please continue to refer to Figure 3 , exemplarily, the boost control chip detects the output terminal (i.e. Figure 3 The boost control chip detects the voltage division of the first resistor unit and the second resistor unit through the third input terminal. When the voltage at the third input terminal of the boost control chip is lower than the first preset voltage threshold, the on-duty cycle of the voltage loop of the inductor unit can be increased; when the voltage at the third input terminal of the boost control chip is higher than the second preset voltage threshold, the on-duty cycle of the voltage loop of the inductor unit can be reduced. By controlling the on and off of the voltage loop of the inductor unit, the voltage at both ends of the first capacitor unit can be maintained at the desired preset voltage value.
[0061] Please continue to refer to Figure 3 For example, the output end of the first power supply circuit outputs a 3V voltage to Vin, and by setting the resistance ratio of the first resistance unit and the second resistance unit, the boost circuit can output a stable 10V voltage.
[0062] Please continue to refer to Figure 3 Optionally, the boost circuit further includes a third resistor unit R3 and a second capacitor unit C2.
[0063] The first end of the third resistance unit R3 is connected to the second end of the inductance unit L, and the second capacitance unit C2 is connected between the second end of the third resistance unit R3 and ground.
[0064] Exemplarily, the second capacitor unit can filter out harmonics at the second end of the inductor unit, and absorb the harmonic current through the third resistor unit, so as to smooth the voltage waveform of the input diode unit.
[0065] Please continue to refer to Figure 3 Optionally, the boost circuit further includes a third capacitor unit C3, and a first end of the third capacitor unit C3 is connected between the first end of the inductor unit L and ground.
[0066] Exemplarily, the third capacitor unit can filter out harmonics at the first end of the inductor unit to make the input voltage more stable.
[0067] Optionally, the first capacitor unit includes a ceramic capacitor and an electrolytic capacitor connected in parallel.
[0068] For example, a ceramic capacitor is a capacitor that uses ceramic material as a dielectric, coats a layer of metal film on the ceramic surface, and then uses it as an electrode after high-temperature sintering. It is usually used in high-stability oscillation circuits as a loop, bypass capacitor, and electrolytic capacitor. An electrolytic capacitor is a type of capacitor, with a metal foil as the positive electrode (aluminum or tantalum), an oxide film (aluminum oxide or tantalum pentoxide) that is in close contact with the positive electrode as the dielectric, and a cathode composed of a conductive material, an electrolyte (the electrolyte can be liquid or solid) and other materials. The electrolyte is the main part of the cathode, so the electrolytic capacitor is named. A small-capacity ceramic capacitor can filter out harmonics in the circuit, making the output voltage of the boost unit more stable. A large-capacity electrolytic capacitor can make the boost unit have a greater load capacity and provide sufficient power for the test process.
[0069] Figure 4 FIG. 1 is a schematic diagram of a selection circuit according to an embodiment of the present application.
[0070] Please refer to Figure 4 , Optionally, the selection circuit includes a first switch element T and a relay Q; The control end of the first switch element T is connected to the test fixture 1 , and the input end of the first switch element T is connected to a preset voltage.
[0071] The output end of the first switch element T is connected to the first end of the coil loop of the relay Q, and the second end of the coil loop of the relay Q is grounded.
[0072] The first input end of the relay Q is connected to the first power supply circuit, and the second input end of the relay Q is connected to the second power supply circuit.
[0073] The output end of the relay Q is connected to the input end of the closing fixture.
[0074] In this embodiment, the first switch increases the driving capability of the test fixture control signal, thereby ensuring accurate driving of the relay. The first switch controls the relay to select power supplies of different voltages under different test conditions to provide corresponding test voltages for the closed fixture.
[0075] Optionally, the selection circuit further includes a fourth resistance unit R, a first end of the fourth resistance unit R is connected to the test fixture 1 , and a second end of the fourth resistance unit R is connected to the control end of the first switch T.
[0076] The fourth resistor unit R4 can be connected in series between the test fixture and the first switch as a current limiting resistor. Exemplarily, the test fixture is connected to the control terminal of the first switch through the current limiting resistor to prevent the loop current from being too large and causing damage to the device.
[0077] Optionally, the first switch element is an NPN transistor.
[0078] For example, an NPN transistor is composed of three semiconductors, two N-type and one P-type semiconductors, with the P-type semiconductor in the middle and two N-type semiconductors on both sides. During the operation of an NPN transistor, when the base potential is higher than the emitter potential, the emitter junction is in a forward biased state, and when the collector potential is higher than the base potential, the collector junction is in a reverse biased state, and the collector power supply is higher than the base power supply. The main functions of an NPN transistor are current amplification and switching.
[0079] It should be noted that, in the present embodiment, the first capacitor unit, the second capacitor unit and the third capacitor unit may be composed of a plurality of capacitors connected in parallel and / or in series. The first resistor unit, the second resistor unit, the third resistor unit and the fourth resistor unit may be composed of a plurality of resistors connected in parallel and / or in series. The inductor unit may be composed of a plurality of inductors connected in parallel and / or in series. The diode unit may be composed of a plurality of diodes in the same direction connected in parallel or in series. This application does not limit this.
[0080] Figure 5 4 is a circuit connection diagram of a first power supply circuit according to an embodiment of the present application.
[0081] like Figure 5 As shown, illustratively, the first power supply circuit is connected to a 3V power supply, through a voltage regulator chip (i.e. Figure 5 U36 in the output is a stable 3V voltage. The voltage regulator chip is UP7553PMA5-25. A filter capacitor is added to the input end of the voltage regulator chip (i.e. Figure 5 C1253 in the figure is used to filter out the noise interference of the voltage input to the voltage regulator chip. A voltage regulator capacitor (i.e. Figure 5 C1264 in the middle) increases the load energy of the output end and can also filter out the interference of the load circuit on the output voltage, so that the 3V voltage waveform output by the first power supply circuit is stable.
[0082] Figure 6 FIG. 4 is a circuit connection diagram of a boost circuit according to an embodiment of the present application.
[0083] Please also refer to Figure 4 and Figure 6 In one embodiment, the relay is controlled to be closed and open through the IO port of the single-chip computer, thereby switching different power supply lines. For example, when the relay is closed without power, the closing fixture is connected to the first power supply circuit to output a 3V voltage to the first category of camera modules. Figure 6 In the embodiment, the boost control chip is implemented using a G5110 chip (ie Figure 6 Thermal in ). By setting the first resistance unit to 130k ohms, setting the second resistance unit to 18k ohms, and setting the reference voltage of the common end of the first resistance unit and the second resistance unit to 1.24v, the boost circuit output voltage can be 1.24v*[1+(130k / 18k)], that is, the output power supply voltage is 10.915v. Exemplarily, when the relay is powered on, the open state connects the closed fixture to the second power circuit line and outputs a 10V voltage to the second category of camera modules. Through intelligent line switching and in conjunction with the boost line, the company can reduce the cost of developing new tooling.
[0084] Third embodiment Please refer to the first embodiment and the second embodiment. The present application also provides a detection device for a camera module, wherein the detection device for the camera module includes a processor and a memory; The memory stores a computer program, and when the computer program is executed by the processor, the steps of the detection method of the camera module as described above are implemented.
[0085] Fourth embodiment The present application also provides a storage medium having a computer program stored thereon. When the computer program is executed by a processor, the steps of the camera module detection method as described above are implemented.
[0086] The detection device for the camera module provided in the present application connects the output end of the first power supply circuit through the first input end of the selection switch, and connects the output end of the second power supply circuit through the second input end of the selection switch. When a camera module of the first category is identified and detected, a first power supply instruction is generated to turn on the selection switch to the first power supply circuit; when a camera module of the second category is identified and detected, a second power supply instruction is generated to turn on the selection switch to the second power supply circuit, so as to select the corresponding power supply to provide working power for the camera module. By selecting and switching the lines, the working power provided by the test device can adapt to different camera modules, thereby reducing production costs and improving production efficiency.
[0087] It should be noted that in the present application, step codes such as S10, S20, etc. are used for the purpose of expressing the corresponding content more clearly and concisely, and do not constitute a substantial limitation on the sequence. When implementing the step, those skilled in the art may execute S20 first and then S10, etc., but these should all be within the scope of protection of the present application.
[0088] In the system embodiment provided in the present application, all technical features of any of the above-mentioned method embodiments may be included, and the expanded and explained contents of the specification are basically the same as those of the above-mentioned method embodiments, and will not be repeated here.
[0089] The embodiment of the present application further provides a computer program product, which includes a computer program code. When the computer program code runs on a computer, the computer executes the methods in the above various possible implementation modes.
[0090] An embodiment of the present application also provides a chip, including a memory and a processor, the memory is used to store a computer program, and the processor is used to call and run the computer program from the memory, so that a device equipped with the chip executes the methods in various possible implementation modes as described above.
[0091] It is understood that the above scenarios are only examples and do not constitute a limitation on the application scenarios of the technical solutions provided in the embodiments of the present application. The technical solutions of the present application can also be applied to other scenarios. For example, it is known to those skilled in the art that with the evolution of the system architecture and the emergence of new business scenarios, the technical solutions provided in the embodiments of the present application are also applicable to similar technical problems.
[0092] The serial numbers of the above-mentioned embodiments of the present application are for description only and do not represent the advantages or disadvantages of the embodiments.
[0093] The steps in the method of the embodiment of the present application can be adjusted in order, combined and deleted according to actual needs.
[0094] The units in the device of the embodiment of the present application can be merged, divided and deleted according to actual needs.
[0095] In the present application, the same or similar terminology concepts, technical solutions and / or application scenario descriptions are generally described in detail only the first time they appear. When they appear again later, they are generally not repeated for the sake of brevity. When understanding the technical solutions and other contents of the present application, for the same or similar terminology concepts, technical solutions and / or application scenario descriptions that are not described in detail later, reference can be made to the previous related detailed descriptions.
[0096] In the present application, the description of each embodiment has its own emphasis. For parts that are not described or recorded in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.
[0097] The various technical features of the technical solution of the present application can be arbitrarily combined. In order to make the description concise, not all possible combinations of the various technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of the present application.
[0098] The above are only preferred embodiments of the present application, and are not intended to limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the present application specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present application.
Claims
1. A camera module detection device, characterized in that: The detection device of the camera module includes a test fixture, a closing fixture, a first power circuit, a second power circuit and a selection switch; The control end of the selection switch is connected to the output end of the test fixture; The first input end of the selection switch is connected to the output end of the first power supply circuit, and the second input end of the selection switch is connected to the output end of the second power supply circuit; The output end of the selection switch is connected to the input end of the closing fixture.
2. The camera module detection device according to claim 1, characterized in that: The detection device of the camera module further includes a filter capacitor module, and the filter capacitor module is connected between the test fixture and the closed fixture; and / or, The detection device of the camera module also includes a pull-up resistor module, and the test tool is connected to the closing fixture through the pull-up resistor module signal.
3. The camera module detection device according to claim 1, characterized in that: The second power supply circuit is a boost circuit, and an input end of the boost circuit is connected to an output end of the first power supply circuit.
4. The camera module detection device according to claim 3, characterized in that: The boost circuit comprises an inductor unit, a diode unit, a first resistor unit, a second resistor unit, a first capacitor unit and a boost control chip; The first end of the inductor unit is connected to the output end of the first power supply circuit, and the second end of the inductor unit is connected to the anode of the diode unit; The cathode of the diode unit is connected to the first end of the first resistor unit and the first end of the first capacitor unit; The second end of the first resistor unit is connected to the first end of the second resistor unit, and the second ends of the second resistor unit and the first capacitor unit are grounded; The first input terminal of the boost control chip is connected to the first end of the inductor unit, the second input terminal of the boost control chip is connected to the second end of the inductor unit, the third input terminal of the boost control chip is connected to the common end of the first resistor unit and the second resistor unit, and the fourth input terminal of the boost control chip is grounded.
5. The camera module detection device according to claim 4, characterized in that: The boost circuit further includes a third resistance unit and a second capacitance unit; The first end of the third resistance unit is connected to the second end of the inductance unit, and the second capacitance unit is connected between the second end of the third resistance unit and ground.
6. The camera module detection device according to claim 4, characterized in that: The boost circuit further includes a third capacitor unit, a first end of which is connected between the first end of the inductor unit and ground.
7. The camera module detection device according to claim 4, characterized in that: The first capacitor unit includes a ceramic capacitor and an electrolytic capacitor connected in parallel.
8. The camera module detection device according to any one of claims 1 to 7, characterized in that: The selection circuit includes a first switch element and a relay; The control end of the first switch element is connected to the test fixture, and the input end of the first switch element is connected to a preset voltage; The output end of the first switch element is connected to the first end of the coil loop of the relay, and the second end of the coil loop of the relay is grounded; The first input end of the relay is connected to the output end of the first power circuit, and the second input end of the relay is connected to the output end of the second power circuit; The output end of the relay is connected to the input end of the closing fixture.
9. The camera module detection device according to claim 8, characterized in that: The selection circuit further includes a fourth resistance unit, a first end of the fourth resistance unit is connected to the test fixture, and a second end of the fourth resistance unit is connected to the control end of the first switch element.
10. The camera module detection device according to claim 8, characterized in that: The first switch element is an NPN transistor.