Detection device for infrared receiving tube

Abstract

The utility model relates to the technical field of detection equipment, and discloses a detection device for an infrared receiving tube, which comprises a detection table, the outer wall of the detection table is rotatably connected with a detection rotating disk, the outer wall of the detection rotating disk is fixedly connected with a plurality of infrared receiving tube probe seats, and the plurality of infrared receiving tube probe seats are uniformly distributed in a circumferential array. Infrared receiving tube interfaces are fixedly mounted on the inner walls of the multiple infrared receiving tube probe seats, two supports are symmetrically arranged on the outer wall of the detection table, an infrared thermal imaging detection device and an illumination detection device are fixedly mounted on the outer walls of the two supports respectively, and an intermittent rotating assembly used for driving the detection rotating disc to rotate is arranged in the detection table. According to the utility model, the automatic circulation of the infrared receiving tube among different stations is realized, the continuity and smoothness of the detection process are obviously improved, the detection time is greatly shortened, and the urgent demand of rapid detection in large-scale production is met.

Description

Technical Field

[0001] This utility model application relates to the field of testing equipment technology, and in particular to a testing device for an infrared receiver tube. Background Technology

[0002] Infrared receivers, as core components for photoelectric conversion, are widely used in smart homes, security monitoring, automotive electronics, and industrial automation. In smart home systems, infrared receivers receive remote control signals to control home appliances; in industrial automation equipment, they serve as key components of photoelectric sensors, enabling object detection and position feedback. With increasing demands for product performance and stability across industries, the quality of infrared receivers directly impacts the reliability of terminal devices, thus placing higher demands on the accuracy and efficiency of their performance testing.

[0003] Regarding the aforementioned technologies, the inventors believe that manual inspection relies on the operator's experience and subjective judgment, resulting in problems such as low inspection efficiency, poor consistency, and susceptibility to human interference. Furthermore, traditional devices often require manual inspection on individual devices, which further reduces inspection efficiency. Therefore, an infrared receiver tube inspection device is proposed to solve the above problems.

[0004] The information disclosed in this background section is only intended to enhance the understanding of the background technology of this application, and therefore may include prior art that is not known to those skilled in the art. Utility Model Content

[0005] To address the aforementioned problems, this application provides a detection device for an infrared receiver tube.

[0006] The infrared receiver tube detection device provided in this utility model application adopts the following technical solution:

[0007] An infrared receiver tube detection device includes a detection platform. A detection rotating disk is rotatably connected to the outer wall of the detection platform. A plurality of infrared receiver tube probe holders are fixedly connected to the outer wall of the detection rotating disk, and the plurality of infrared receiver tube probe holders are evenly distributed in a circumferential array. An infrared receiver tube interface is fixedly installed on the inner wall of each of the plurality of infrared receiver tube probe holders. Two supports are symmetrically arranged on the outer wall of the detection platform, and the two supports are symmetrically distributed on both sides of the detection rotating disk. An infrared thermal imaging detection device and a light detection device are fixedly installed on the outer walls of the two supports, respectively. An intermittent rotation group for driving the detection rotating disk to rotate is provided inside the detection platform.

[0008] Preferably, the intermittent rotation assembly includes a drive inner groove and a drive wheel. The drive inner groove is inside the detection table and located below the detection rotating disk. A driven wheel is rotatably connected to the inner wall of the drive inner groove. The outer wall of the driven wheel has multiple radial grooves, which are evenly distributed in a circumferential array. The drive wheel is located on one side of the driven wheel and is rotatably connected to the drive inner groove. A pin that matches the radial groove is fixedly connected to the outer wall of the drive wheel, and the driven wheel is fixedly connected to the detection rotating disk.

[0009] Preferably, a display screen is fixedly installed on the outer wall of the testing station.

[0010] Preferably, a light intensity sensor for monitoring the light detection device is fixedly installed on the outer wall of each of the plurality of infrared receiver probe holders.

[0011] Preferably, a controller is fixedly connected to the outer side wall of the detection platform, and the controller is electrically connected to the infrared thermal imaging detection device, the light detection device, the infrared receiving tube probe base, and the display screen.

[0012] Preferably, a servo motor is fixedly connected to the inner wall of the testing platform, and the output shaft of the servo motor is fixedly connected to the drive wheel, and an encoder is fixedly installed on the outer wall of the servo motor.

[0013] Preferably, the illumination detection device includes a standard light intensity calibration plate and a light intensity adjustment circuit.

[0014] In summary, this application includes the following beneficial technical effects:

[0015] 1. This device achieves efficient and accurate detection through the collaboration of multiple components. The rotating detection disc, connected by a rotating mechanism, works with multiple infrared receiver probe holders arranged in a circular array. Through the intermittent rotation mechanism of the detection disc, the infrared receivers are automatically transferred between different workstations. This completely eliminates the cumbersome operation mode of traditional manual handling and switching between multiple devices. Compared with traditional detection methods, it greatly avoids delays and errors caused by human operation, significantly improves the continuity and smoothness of the detection process, and greatly shortens the detection time, meeting the urgent need for rapid detection in large-scale production.

[0016] 2. This device symmetrically distributes the infrared thermal imaging detection device and the illumination detection device on both sides of the detection rotating disk. By coordinating with the intermittent rotation of the rotating disk, it performs secondary detection on the infrared receiving tube. The illumination detection device and the infrared thermal imaging detection device have a clear division of labor and work together in an orderly manner. They comprehensively evaluate the infrared receiving tube from two distinct but complementary dimensions: photoelectric conversion performance and thermal characteristics. This greatly improves the comprehensiveness and accuracy of the detection, effectively avoids missed or misjudged cases caused by single-dimensional detection, and ensures that the quality of each infrared receiving tube meets high standards. Attached Figure Description

[0017] Figure 1 This is an overall schematic diagram of Embodiment 1 of the application;

[0018] Figure 2 This is a three-dimensional structural schematic diagram of Embodiment 1 of the application;

[0019] Figure 3 This is a schematic diagram of the internal structure of the drive inner groove in Embodiment 1 of the application;

[0020] Figure 4 This is a cross-sectional view of the testing platform structure of Embodiment 1 of the application.

[0021] Explanation of reference numerals in the attached drawings: 1. Detection stage; 2. Controller; 3. Detection rotary disk; 4. Infrared receiver probe holder; 5. Display screen; 6. Support; 7. Infrared thermal imaging detection device; 8. Illumination detection device; 9. Infrared receiver interface; 10. Light intensity sensor; 11. Drive inner groove; 12. Driven wheel; 13. Drive wheel; 14. Radial groove; 15. Pin; 16. Servo motor. Detailed Implementation

[0022] The following is in conjunction with the appendix Figure 1 - Figure 4 This application will be described in further detail.

[0023] An infrared receiver tube detection device includes a detection platform 1. A detection rotating disk 3 is rotatably connected to the outer wall of the detection platform 1. Multiple infrared receiver tube probe holders 4 are fixedly connected to the outer wall of the detection rotating disk 3. These probe holders 4 can be divided into a feeding station, a light illumination detection station, a buffer station, and an infrared thermal imaging detection station, thereby detecting the infrared receiver tube and improving detection efficiency. The multiple infrared receiver tube probe holders 4 are evenly distributed in a circumferential array. An infrared receiver tube interface 9 is fixedly installed on the inner wall of each of the multiple infrared receiver tube probe holders 4. This infrared receiver tube interface 9 adopts a spring probe structure and can connect to the infrared receiver tube to be detected. An adapter is used to connect the external receiver tube, facilitating accurate installation of the infrared receiver tube at the detection position while ensuring good electrical contact. Two supports 6 are symmetrically arranged on the outer wall of the detection platform 1, distributed symmetrically on both sides of the detection rotating disk 3. An infrared thermal imaging detection device 7 and a light detection device 8 are respectively fixedly installed on the outer walls of the two supports 6. The infrared thermal imaging detection device 7 uses an uncooled microbolometer as its core detection element and is equipped with a germanium infrared optical lens with a focal length of 19mm. This allows for efficient focusing of the thermal radiation emitted by the infrared receiver tube onto the microbolometer. A high-speed AD converter is integrated on the board. C. The analog electrical signal output by the microbolometer is quickly converted into a digital signal. A dedicated FPGA chip is used for preprocessing the digital signal. The illumination detection device 8 uses a high-power infrared LED array composed of multiple LEDs with center wavelengths of 850nm and 940nm. Designed based on PWM pulse width modulation technology, it employs a high-performance PWM chip to precisely control the luminous intensity of the LEDs. A current feedback loop is included in the circuit, using a high-precision sampling resistor to monitor the LED drive current in real time, ensuring the stability and accuracy of the light intensity output. Two devices, one for each infrared receiver tube, are used to detect the performance of the infrared receiver tube under different illumination conditions. Thermal imaging technology visually presents the temperature distribution of the infrared receiver tube, allowing the infrared thermal imaging detection device 7 to determine if there are any abnormalities such as overheating. This completes the detection of multiple infrared receiver tubes. The detection stage 1 has an intermittent rotation component inside to drive the detection rotating disk 3. This intermittent rotation component controls the rotation of the detection rotating disk 3, thereby rotating the infrared receiver tube on each infrared receiver tube probe holder 4, improving the detection efficiency.

[0024] The intermittent rotation assembly includes a drive inner groove 11 and a drive wheel 13. The drive inner groove 11 is located inside the detection table 1 and below the detection rotary disk 3. A driven wheel 12 is rotatably connected to the inner wall of the drive inner groove 11. The outer wall of the driven wheel 12 has multiple radial grooves 14, which are evenly distributed in a circumferential array. The drive wheel 13 is located on one side of the driven wheel 12 and is rotatably connected to the drive inner groove 11. A pin 15 adapted to the radial grooves 14 is fixedly connected to the outer wall of the drive wheel 13. The driven wheel 12 and the driven wheel 13 are rotatably connected to the drive inner groove 11. The rotating detection disk 3 is fixedly connected. The drive wheel 13 rotates, and the servo motor 16, with a rated speed of 1000 rpm, drives the drive wheel 13 by reducing its speed through a reducer. Pins 15 on the drive wheel 13 are sequentially inserted into the radial grooves 14 of the driven wheel 12, causing the driven wheel 12 to rotate intermittently. This intermittent rotation of the rotating detection disk 3 allows each infrared receiver tube mounted on the infrared receiver tube probe holder 4 to move sequentially under the infrared thermal imaging detection device 7 and the illumination detection device 8 for corresponding detection. The switching time between two adjacent detection positions is set to three seconds to ensure the accuracy and stability of the detection.

[0025] The outer wall of the testing station 1 is fixedly equipped with a display screen 5, which is used to display various data during the testing process and the final test results in real time, so that the operator can view them intuitively. The operator can set the testing parameters, such as the light intensity range and temperature threshold, through the touch screen.

[0026] Multiple infrared receiver probe holders 4 are fixedly mounted with light intensity sensors 10 for monitoring the light detection device 8. The light intensity sensors 10 use silicon photodiodes and can monitor the light intensity emitted by the light detection device 8 in real time and feed the data back to the controller 2 so as to accurately control and adjust the light intensity.

[0027] A controller 2 is fixedly connected to the outer side wall of the detection station 1. The controller 2 is a microcontroller with an ARM Cortex-M7 core. The controller 2 is electrically connected to the infrared thermal imaging detection device 7, the light detection device 8, the infrared receiver probe base 4, and the display screen 5. As the control core of the entire detection device, the controller 2 can coordinate and control the various components according to the preset program. For example, it can control the start, stop and speed of the servo motor 16, receive and process the data fed back by the infrared thermal imaging detection device 7, the light detection device 8 and the light intensity sensor 10, and transmit the detection results to the display screen 5 for display.

[0028] A servo motor 16 is fixedly connected to the inner wall of the testing table 1, and the output shaft of the servo motor 16 is fixedly connected to the drive wheel 13. An encoder is fixedly installed on the outer wall of the servo motor 16, which can accurately record the rotation angle and speed of the servo motor 16. By starting the servo motor 16, the drive wheel 13 can be driven to rotate.

[0029] The illumination detection device 8 is equipped with a standard light intensity calibration plate and a light intensity adjustment circuit. The standard light intensity calibration plate is a high-precision diffuse reflector plate that has been certified by the National Metrology Institute. Before illumination detection, the light intensity of the illumination detection device 8 can be calibrated using the standard light intensity calibration plate to ensure the accuracy of the detection data. The light intensity adjustment circuit adopts PWM dimming technology, which can adjust the light intensity emitted by the illumination detection device 8 in real time according to the detection requirements to simulate different illumination environments and comprehensively detect the performance of the infrared receiver tube under various illumination conditions.

[0030] The implementation principle of the infrared receiver tube detection device according to the present invention is as follows: The operator installs the infrared receiver tube into the infrared receiver tube interface 9 of the infrared receiver tube probe seat 4. The infrared receiver tube interface 9 adopts a spring probe structure. Under the action of the spring force, the probe is in close contact with the pin of the infrared receiver tube, ensuring a stable electrical connection. The controller 2 sends a start command to the servo motor 16, which causes the drive wheel 13 to rotate. The pin 15 on the drive wheel 13 rotates with the drive wheel 13. When the pin 15 is inserted into the radial groove 14 of the driven wheel 12, it drives the driven wheel 12 to rotate, thereby causing the detection rotating disk 3 fixedly connected to the driven wheel 12 to rotate. When the pin 15 rotates out of the radial groove 14, the driven wheel 12 stops rotating, and the detection rotating disk 3 also stops, completing one intermittent motion. The encoder on the outer wall of the servo motor 16 records the motor rotation angle and speed in real time and feeds them back to the controller 2 to realize closed-loop control and ensure that the switching time between adjacent detection positions is accurately maintained within three seconds.

[0031] When the rotating detection disk 3 delivers the infrared receiver to the light intensity detection station, the controller 2 first initiates the calibration program of the light detection device 8. The standard light intensity calibration plate enters the detection area under the drive of the electric switching mechanism. The light intensity sensor 10 monitors the light intensity data in real time and feeds it back to the controller 2. The controller 2 adjusts the luminous intensity of the high-power infrared LED array using PWM dimming technology based on the preset standard light intensity value. The LED array consists of LEDs with center wavelengths of 850nm, 940nm, etc. The PWM control chip adjusts the output signal according to the controller 2's instructions. Combined with the LED drive current monitored by the high-precision sampling resistor in the current feedback loop, it ensures that the light intensity output remains stable at the set value, thus completing the process. After calibration, controller 2 controls the LED beads to illuminate the infrared receiver tube according to a preset light intensity sequence. The infrared receiver tube generates photocurrent, which is transmitted to controller 2 through infrared receiver tube interface 9. Controller 2 collects the photocurrent data, calculates the light response characteristic parameters of the infrared receiver tube, and performs detection. After the light intensity detection is completed, the detection rotating disk 3 rotates, and the infrared receiver tube after the light intensity detection is completed enters the buffer station. The operator continues to feed infrared receiver tubes, and by rotating the detection rotating disk 3 again, the detection rotating disk 3 delivers the infrared receiver tube after the light intensity detection is completed to the infrared thermal imaging detection station. The infrared thermal imaging detection device 7 is activated, and the uncooled microbolometer begins to work. The thermal radiation emitted by the infrared receiver tube is focused onto the microbolometer by a germanium infrared optical lens with a focal length of 19mm. The microbolometer converts the thermal radiation into an analog electrical signal, which is then converted into a digital signal by a high-speed ADC on the board. After noise reduction and enhancement preprocessing by a dedicated FPGA chip, the signal is transmitted to the controller 2. By analyzing the temperature distribution, the controller determines whether there are abnormalities such as short circuits or overheating caused by the infrared receiver tube. During the illumination detection and infrared thermal imaging detection processes, the controller 2 receives and processes the data fed back by the light intensity sensor 10 and the infrared thermal imaging detection device 7 in real time. The controller 2 uses an ARM Cortex-M7 core and expands with a high-speed cache chip and a large-capacity storage module. Edge computing technology is used to analyze and process data locally in real time. The analysis results are transmitted to the display screen 5 on the outer wall of the testing station 1. The screen displays the test data intuitively in the form of charts, images, etc., such as temperature distribution cloud maps and photocurrent-light intensity curves. At the same time, the AI ​​intelligent diagnostic function automatically marks abnormal data points. If the test results show that there is an abnormality in the infrared receiver tube, the system triggers an audible and visual alarm and prompts the operator through the display screen 5. In addition, the display screen 5 supports touch operation and gesture recognition. The operator can set the test parameters, and the system automatically saves the parameter settings and generates a test plan archive, thereby completing the rapid test of the infrared receiver tube, improving its testing efficiency, and ensuring the quality of the infrared receiver tube.

Claims

1. A detection device for an infrared receiver tube, comprising a detection stage (1), characterized in that: The outer wall of the detection platform (1) is rotatably connected to a detection rotating disk (3). The outer wall of the detection rotating disk (3) is fixedly connected to multiple infrared receiving tube probe seats (4), and the multiple infrared receiving tube probe seats (4) are evenly distributed in a circumferential array. The inner walls of the multiple infrared receiving tube probe seats (4) are all fixedly installed with infrared receiving tube interfaces (9). The outer wall of the detection platform (1) is symmetrically provided with two supports (6), and the two supports (6) are symmetrically distributed on both sides of the detection rotating disk (3). The outer walls of the two supports (6) are respectively fixedly installed with an infrared thermal imaging detection device (7) and an illumination detection device (8). The inside of the detection platform (1) is provided with an intermittent rotation component for driving the detection rotating disk (3) to rotate.

2. The detection device for an infrared receiver tube according to claim 1, characterized in that: The intermittent rotation assembly includes a drive inner groove (11) and a drive wheel (13). The drive inner groove (11) is inside the detection table (1) and is located below the detection rotating disk (3). The inner wall of the drive inner groove (11) is rotatably connected to a driven wheel (12). The outer wall of the driven wheel (12) is provided with multiple radial grooves (14), and the multiple radial grooves (14) are evenly distributed in a circumferential array. The drive wheel (13) is located on one side of the driven wheel (12) and is rotatably connected to the drive inner groove (11). The outer wall of the drive wheel (13) is fixedly connected to a pin (15) that matches the radial groove (14), and the driven wheel (12) is fixedly connected to the detection rotating disk (3).

3. The detection device for an infrared receiver tube according to claim 1, characterized in that: A display screen (5) is fixedly installed on the outer wall of the testing station (1).

4. The detection device for an infrared receiver tube according to claim 1, characterized in that: Each of the infrared receiver probe holders (4) has a light intensity sensor (10) fixedly installed on its outer wall for monitoring the light detection device (8).

5. The detection device for an infrared receiver tube according to claim 1, characterized in that: The outer side wall of the detection platform (1) is fixedly connected to a controller (2), and the controller (2) is electrically connected to the infrared thermal imaging detection device (7), the light detection device (8), the infrared receiver probe base (4), and the display screen (5).

6. The detection device for an infrared receiver tube according to claim 1, characterized in that: The inner wall of the testing platform (1) is fixedly connected to a servo motor (16), and the output shaft of the servo motor (16) is fixedly connected to the drive wheel (13), and an encoder is fixedly installed on the outer wall of the servo motor (16).

7. The detection device for an infrared receiver tube according to claim 1, characterized in that: The light detection device (8) is equipped with a standard light intensity calibration plate and a light intensity adjustment circuit.

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