Mining intrinsic safety camera with automatic lens cleaning function
By integrating an automatic lens cleaning module, an optoelectronic transceiver module, and a supplementary light into the mining camera, the problem of dust accumulation on the lens of the underground camera was solved, achieving efficient cleaning and long-distance transmission, and improving the image quality of underground coal mine monitoring.
Patent Information
- Application Number
- CN202422778861.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-14
- Publication Date
- 2026-01-02
- Estimated Expiration
- 2034-11-14
AI Technical Summary
The lenses of underground video surveillance cameras in coal mines are easily covered by dust, affecting the clarity of the images and resulting in low efficiency in the transmission of monitoring information. Existing technologies are unable to effectively solve this problem.
A mining intrinsically safe camera was designed, integrating an automatic lens cleaning module, an optoelectronic transceiver module, an Ethernet extension cable module, and a supplementary light. The automatic lens cleaning module keeps the lens clean, the optoelectronic transceiver module converts signals and extends the transmission distance, and the supplementary light improves the shooting quality.
It achieves automatic cleaning of the camera lens to maintain image clarity, and enables ultra-long-distance transmission of monitoring images through an optoelectronic transceiver module, improving transmission efficiency and clarity.
Smart Images
Figure CN223758343U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a mine intrinsic safety camera with automatic lens cleaning function belongs to coal mine safety monitoring technical field. BACKGROUND
[0002] At present, coal mining as a high-risk industry, the safety protection of underground construction operation has higher requirements. The important operating place in coal mine must install video monitoring facilities to ensure the whole process transparency monitoring, and arrange personnel to view or replay video in time, timely find and handle the irregular behavior and unsafe behavior.
[0003] However, due to the complex environment of coal mine, especially the high dust content in the air, the lens of the camera will be attached with a large amount of dust in the long-term use process, thereby affecting the shooting quality, resulting in that the monitoring personnel cannot obtain the clear monitoring picture in the mine. If manual downhole lens cleaning is used, it is not only time-consuming and laborious, but also brings safety hazards in the cleaning process. In addition, the picture information collected by the camera needs to be transmitted to the monitoring center and other monitoring devices in real time, how to realize effective transmission of information in the complex environment of the mine is also an urgent problem to be solved at present. SUMMARY
[0004] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art, provide a mine intrinsic safety camera with automatic lens cleaning function, which can automatically clean the camera, maintain the clarity of shooting and improve the efficiency of monitoring picture transmission.
[0005] In order to solve the above technical problems, the technical scheme of the utility model is:
[0006] A mine intrinsic safety camera with automatic lens cleaning function, which comprises a camera, a main control module, an optical transceiver module, a lens automatic cleaning module and an Ethernet extension line module;
[0007] The camera is connected with the main control module, and the camera is used for collecting the working picture in the coal mine;
[0008] The optical transceiver module is connected with the main control module, and the optical transceiver module is used for converting the network signal into an optical signal and outputting a network signal to the Ethernet extension line module;
[0009] The Ethernet extension line module is connected with the optical transceiver module, and the Ethernet extension line module is used for extending the transmission distance of the network signal;
[0010] The lens automatic cleaning module is connected with the main control module, and the lens automatic cleaning module is used for driving the lens brush to clean the lens.
[0011] Further, the light supplement lamp is connected with the main control module, and the light supplement lamp is used for supplementing light for the camera.
[0012] Further, the power module comprises a first power conversion module, a second power conversion module and a third power conversion module.
[0013] The input end of the first power conversion module is connected with an external intrinsic safety power supply, and the output end of the first power conversion module is used for supplying power for the camera and the Ethernet extension line module.
[0014] The input end of the second power conversion module is connected with the external intrinsic safety power supply, and the output end of the second power conversion module is used for supplying power for the main control module, the photoelectric transceiver module and the lens automatic cleaning module.
[0015] The input end of the third power conversion module is connected with the external intrinsic safety power supply, and the output end of the third power conversion module is used for supplying power for the light supplement lamp.
[0016] Further, the RS485 communication module is connected with the main control module, the RS485 communication module is powered by the output end of the second power conversion module, and the RS485 communication module is used for performing RS485 communication with the upper computer.
[0017] Further, the lens automatic cleaning module comprises a motor drive chip, the input end of the motor drive chip is connected with the IO port of the main control module, and the output end of the motor drive chip is connected with the lens brush motor.
[0018] Further, the motor drive chip is of the type of DRV8837CDSGR.
[0019] By adopting the above technical scheme, the lens brush is driven by the lens automatic cleaning module to clean the lens, so that the definition of a shooting picture is maintained. The network signal is converted into an optical signal by the photoelectric transceiver module, so that the super-long distance transmission of a downhole monitoring picture is realized. The transmission distance of the network signal in the downhole is extended by the Ethernet extension line module, and the camera is convenient for the staff to debug. BRIEF DESCRIPTION OF DRAWINGS
[0020] Figure 1 It is a principle block diagram of the mine-used intrinsic safety camera with the automatic lens cleaning function.
[0021] Figure 2 It is a circuit principle diagram of the main control module.
[0022] Figure 3 It is a circuit principle diagram of the lens automatic cleaning module.
[0023] Figure 4 The circuit principle diagram of the power module of the utility model;
[0024] Figure 5 The circuit principle diagram of the RS485 communication module of the utility model;
[0025] Figure 6 The circuit principle diagram of the light supplement lamp of the utility model;
[0026] Figure 7 The circuit principle diagram of the power module of the utility model. DETAILED DESCRIPTION
[0027] In order to make the content of the utility model more easily and clearly understood, the utility model is further explained in detail below according to specific embodiments and in conjunction with the drawings.
[0028] As Figure 1 shown, the embodiment provides a mine intrinsic safety camera with automatic lens cleaning function, which comprises a camera, a main control module, an optical transceiver module, a lens automatic cleaning module, an Ethernet extension line module and an RS485 communication module.
[0029] As Figure 2 shown, the main control module of the embodiment adopts a main control chip U1, the model of which is STM32F103, which is a 32-bit microcontroller based on ARM Cortex-M kernel STM32 series, and adopts 3.3V power supply.
[0030] As Figure 1 shown, the lens automatic cleaning module of the embodiment is connected with the main control module, and the lens automatic cleaning module is used for driving a lens brush to clean the lens. The lens brush is installed on the shell of the camera, and the lens brush is driven by the lens automatic cleaning module to automatically clean the camera lens glass on the shell, so that dust on the camera lens glass is cleaned. As Figure 3 shown, the lens automatic cleaning module of the embodiment comprises a motor drive chip U2, and the model of the motor drive chip is DRV8837CDSGR. The input pins 5 and 6 of the motor drive chip U2 are connected with the IO port of the main control module, and the output pins 2 and 3 of the motor drive chip are connected with the lens brush motor, so that the lens brush is driven to rotate by the lens brush motor, and the camera lens glass is automatically cleaned.
[0031] As Figure 1 shown, the camera of the embodiment is connected with the main control module, and the camera is used for collecting the working picture of the coal mine underground, and transmitting the collected picture information to the main control module. The camera of the embodiment adopts a camera module with the model of YST-2CD7A04.
[0032] As shown in Figure 1 , the photoelectric transceiver module of the embodiment is connected with the main control module, the main control module transmits picture information to the photoelectric transceiver module through network signal, and the photoelectric transceiver module converts the network signal into optical signal and accesses the communication ring network or other optical communication equipment in the coal mine through optical fiber. The transmission distance of optical fiber communication can reach tens or hundreds of kilometers, and the super long distance transmission of the underground monitoring picture to the safety monitoring center and other long distance monitoring equipment on the ground can be realized. As shown in Figure 4 , the photoelectric transceiver module of the embodiment adopts 2 optical and 3 electrical, that is, 2 optical fiber interfaces and 3 network electrical ports, the main control module is connected with the network port J2A through network cable, and then the optical fiber is inserted in the optical fiber interface JP1, and the network port J2B outputs a network signal to the Ethernet extension line module.
[0033] As shown in Figure 1 , the Ethernet extension line module of the embodiment adopts a network extender, the Ethernet extension line module is connected with the photoelectric transceiver module, and the photoelectric transceiver module transmits picture information to the Ethernet extension line module through network signal. The Ethernet extension line module can effectively extend the network transmission distance, break through the limitation of the traditional Ethernet transmission distance within 100 meters, and can transmit 100M network for 500 meters and 10M network for 1500 meters or even longer through twisted pair. This can transmit the underground monitoring picture to a farther place, and if the installation position of the camera is not suitable for the staff to debug, the staff can also debug the camera after the distance is extended.
[0034] As shown in Figure 1 , the RS485 communication module of the embodiment is connected with the main control module, the RS485 communication module is powered by the output end of the second power conversion module, and the RS485 communication module is used for RS485 communication with the host computer. In addition to optical fiber communication and Ethernet communication, the communication transmission mode of the embodiment is also equipped with RS485 communication, which can communicate with other devices equipped with RS485 communication interface in the coal mine, and meet the communication needs of different types of devices. As shown in Figure 5 , the RS485 communication module of the embodiment adopts RS485 communication chip U5, the model number is TP8485E, and the RS485 communication chip U5 is connected with the main control chip U1.
[0035] As shown in Figure 1 , the mine-used intrinsic safety camera with automatic lens cleaning function of the embodiment further comprises a light supplement lamp, and the light supplement lamp is connected with the main control module. Since the light condition is poor in the mine, the light supplement lamp is used to supplement light for the camera. As shown in Figure 6As shown, the fill light in this embodiment uses an LED driver chip U6, model PT4115. The LED driver chip U6 drives the LED to light up, providing fill light for the camera.
[0036] like Figure 1 As shown, the intrinsically safe mining camera with automatic lens cleaning function in this embodiment also includes a power module, which includes a first power conversion module, a second power conversion module and a third power conversion module.
[0037] The input of the first power conversion module is connected to an external intrinsically safe power supply, and the output of the first power conversion module supplies power to the camera and the Ethernet extension cable module. For example... Figure 7 As shown, the first power conversion module uses a power chip U7, model TPS54331, which converts the 18V external intrinsically safe DC power supply into a 5V power supply for the camera, optoelectronic transceiver module and Ethernet extension cable module.
[0038] The input of the second power conversion module is connected to an external intrinsically safe power supply, and the output of the second power conversion module supplies power to the main control module, the optoelectronic transceiver module, and the lens automatic cleaning module. For example... Figure 7 As shown, the second power conversion module uses a power chip U8, model HT7333-3, which converts the 18V external intrinsically safe DC power supply into a 3.3V power supply for the main control module, RS485 communication module and lens automatic cleaning module.
[0039] The input of the third power conversion module is connected to an external intrinsically safe power supply, and the output of the third power conversion module powers the fill light. For example... Figure 7 As shown, the third power conversion module uses a power chip U9, model TPS54331, which converts the 18V external intrinsically safe DC power supply into a 9V power supply for the fill light circuit board.
[0040] The specific embodiments described above further illustrate the technical problems, technical solutions, and beneficial effects of this utility model. It should be understood that the above descriptions are merely specific embodiments of this utility model and are not intended to limit this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A mining intrinsically safe camera with automatic lens cleaning function, characterized in that: It includes a camera, a main control module, an optoelectronic transceiver module, an automatic lens cleaning module, and an Ethernet extension cable module; The camera is connected to the main control module and is used to capture images of underground coal mine operations. The optoelectronic transceiver module is connected to the main control module. The optoelectronic transceiver module is used to convert network signals into optical signals and output a network signal to the Ethernet extension cable module. The Ethernet extension cable module is connected to the optoelectronic transceiver module, and the Ethernet extension cable module is used to extend the transmission distance of network signals; The automatic lens cleaning module is connected to the main control module, and the automatic lens cleaning module is used to drive the lens brush to clean the lens.
2. The intrinsically safe mining camera with automatic lens cleaning function according to claim 1, characterized in that: It also includes a fill light, which is connected to the main control module. The fill light is used to provide supplementary lighting for the camera.
3. The intrinsically safe mining camera with automatic lens cleaning function according to claim 2, characterized in that: It also includes a power module, which comprises a first power conversion module, a second power conversion module and a third power conversion module; The input terminal of the first power conversion module is connected to an external intrinsically safe power supply, and the output terminal of the first power conversion module supplies power to the camera and the Ethernet extension cable module. The input terminal of the second power conversion module is connected to an external intrinsically safe power supply, and the output terminal of the second power conversion module supplies power to the main control module, the optoelectronic transceiver module and the lens automatic cleaning module. The input terminal of the third power conversion module is connected to an external intrinsically safe power supply, and the output terminal of the third power conversion module supplies power to the fill light.
4. The intrinsically safe mining camera with automatic lens cleaning function according to claim 3, characterized in that: It also includes an RS485 communication module, which is connected to the main control module. The RS485 communication module is powered by the output of the second power conversion module and is used to communicate with the host computer via RS485.
5. The intrinsically safe mining camera with automatic lens cleaning function according to claim 1, characterized in that: The automatic lens cleaning module includes a motor driver chip. The input terminal of the motor driver chip is connected to the I / O port of the main control module, and the output terminal of the motor driver chip is connected to the lens brush motor.
6. The intrinsically safe mining camera with automatic lens cleaning function according to claim 5, characterized in that: The motor driver chip is model DRV8837CDSGR.