Intelligent monitoring equipment for overhead line system

Abstract

The utility model relates to the technical field of catenary monitoring, in particular to intelligent monitoring equipment for a catenary, which comprises a vibration sensor module, a temperature / humidity sensor module, a video monitoring camera, a microprocessor and a wireless communication module, and is characterized in that the vibration sensor module is connected with the microprocessor through an I2C (Inter-Integrated Circuit) interface and is used for monitoring abnormal vibration; the temperature / humidity sensor module is connected with the microprocessor through an I2C interface and is used for monitoring the temperature and humidity around the overhead line system; the video monitoring camera is connected with the microprocessor and is used for monitoring the appearance condition of the overhead line system in real time; the microprocessor is connected with the wireless communication module through the UART interface and used for sending and receiving wireless data. According to the utility model, the vibration sensor module, the temperature / humidity sensor module and the video monitoring camera are integrated, so that data can be collected from multiple angles, and the comprehensiveness and accuracy of monitoring data are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of contact network monitoring, in particular to an intelligent monitoring device for contact network. Background Art

[0002] Catenary monitoring equipment uses cameras to monitor the catenary in real time to check the status of the catenary and monitor the physical condition of the catenary. However, the existing technology has the following shortcomings:

[0003] 1) Limitations of a single data source: Existing monitoring equipment often relies on a single data source (such as video). This single-source data may not be sufficient to accurately identify anomalies in complex situations.

[0004] For example, under extreme weather conditions (such as fog, rain, snow, etc.), video surveillance may be seriously affected, resulting in a decrease in image quality, which in turn affects the accurate judgment of the contact network status.

[0005] 2) Communication stability issues: In remote areas or complex terrain, wireless communication signals may be unstable, affecting the quality and speed of data transmission.

[0006] In addition, although wired communication can provide a more stable connection, laying cables requires a higher initial investment and may also increase costs in subsequent maintenance. Utility Model Content

[0007] Aiming at the current problems of single data source and poor communication stability, an intelligent monitoring device for contact network is provided.

[0008] In order to achieve the purpose of the utility model, the technical solution adopted is: an intelligent monitoring device for the contact network, including a vibration sensor module, a temperature / humidity sensor module, a video surveillance camera, a microprocessor and a wireless communication module. The vibration sensor module is connected to the microprocessor through an I2C interface for monitoring abnormal vibration; the temperature / humidity sensor module is connected to the microprocessor through an I2C interface for monitoring the temperature and humidity around the contact network; the video surveillance camera is connected to the microprocessor for real-time monitoring of the appearance of the contact network; the microprocessor is connected to the wireless communication module through a UART interface for sending and receiving wireless data.

[0009] As an optimized solution of the present invention, the microprocessor is a single-chip microcomputer U1, and the single-chip microcomputer U1 is an STM32L051C8T6 single-chip microcomputer.

[0010] As an optimized solution of the present invention, the wireless communication module is a LoRaWAN module, which includes a wireless communication chip U2. The UART_RX pin of the wireless communication chip U2 is connected to the 30th pin of the microcontroller U1, and the UART_TX pin of the wireless communication chip U2 is connected to the 31st pin of the microcontroller U1.

[0011] As an optimized solution of the present utility model, the vibration sensor module includes an accelerometer U3 and a capacitor C18. The 7th pin of the accelerometer U3 is grounded through the capacitor C18, the 8th pin of the accelerometer U3 is connected to the 10th pin of the microcontroller U1, the 9th pin of the accelerometer U3 is connected to the 11th pin of the microcontroller U1, the 13th pin of the accelerometer U3 is connected to the 12th pin of the microcontroller U1, and the 14th pin of the accelerometer U3 is connected to the 13th pin of the microcontroller U1.

[0012] As an optimized solution of the present invention, the temperature / humidity sensor module includes a temperature and humidity sensor U4 and a capacitor C11. The 1st pin of the temperature and humidity sensor U4 is connected to the 46th pin of the microcontroller U1, and the 6th pin of the temperature and humidity sensor U4 is connected to the 45th pin of the microcontroller U1.

[0013] As an optimization solution of the present invention, the video surveillance camera is a MIPI CSI high-definition camera and is also equipped with a cooling fan.

[0014] The utility model has the following positive effects: 1) By integrating a vibration sensor module, a temperature / humidity sensor module, and a video surveillance camera, the utility model collects data from multiple angles, thereby improving the comprehensiveness and accuracy of monitoring data. This helps to promptly detect physical damage or other abnormalities in the contact network, as well as potential structural problems;

[0015] 2) This utility model monitors changes in the surrounding environment through a temperature / humidity sensor module, helping to assess the impact of environmental factors on the contact network. The MIPI CSI high-definition camera, equipped with a cooling fan, ensures stable operation under different temperature conditions, enhancing the environmental adaptability and reliability of the entire monitoring system.

[0016] 3) The microprocessor in this utility model connects to the LoRaWAN wireless communication module via a UART interface, supporting remote data transmission. This allows field devices to send and receive data in real time without geographical restrictions, improving the flexibility and efficiency of the monitoring system. The long-distance transmission characteristics of LoRaWAN technology reduce reliance on wired communications and lower deployment costs.

[0017] 4) Both the single-chip microcomputer and the LoRaWAN wireless communication module of the utility model adopt a low-power design, which reduces the overall power consumption, effectively extends the service life of the equipment and reduces maintenance costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention will be further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0019] Figure 1 This is a principle block diagram of the utility model;

[0020] Figure 2 This is a circuit diagram of the microprocessor of the utility model;

[0021] Figure 3 This is the circuit schematic diagram of the vibration sensor module of the utility model;

[0022] Figure 4 This is the circuit schematic diagram of the temperature / humidity sensor module of the utility model;

[0023] Among them: 1. Vibration sensor module, 2. Temperature / humidity sensor module, 3. Video surveillance camera, 4. Microprocessor, 5. Wireless communication module. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solutions and advantages of the embodiments of this patent clearer, the technical solutions in the embodiments of this utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of this utility model.

[0025] The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the present invention and its application or use. All other embodiments derived by those skilled in the art based on the embodiments of the present invention without inventive effort are intended to fall within the scope of protection of the present invention.

[0026] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present invention.

[0027] Unless otherwise specifically stated, the relative arrangement of the components and steps, numerical expressions, and numerical values ​​described in these embodiments do not limit the scope of the present invention. At the same time, it should be understood that, for ease of description, the dimensions of the various parts shown in the accompanying drawings are not drawn according to actual proportional relationships. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail. In all examples shown and discussed herein, any specific value should be interpreted as merely exemplary and not as a limitation. Therefore, other example numerical values ​​of the exemplary embodiments may have different values.

[0028] like Figure 1 As shown, the utility model discloses an intelligent monitoring device for a contact network, including a vibration sensor module 1, a temperature / humidity sensor module 2, a video surveillance camera 3, a microprocessor 4 and a wireless communication module 5. The vibration sensor module 1 is connected to the microprocessor 5 through an I2C interface for monitoring abnormal vibration; the temperature / humidity sensor module 2 is connected to the microprocessor 4 through an I2C interface for monitoring the temperature and humidity around the contact network; the video surveillance camera 3 is connected to the microprocessor 4 for real-time monitoring of the appearance of the contact network; the microprocessor 4 is connected to the wireless communication module 5 through a UART interface for sending and receiving wireless data.

[0029] By integrating the vibration sensor module 1, the temperature / humidity sensor module 2, and the video surveillance camera 3, multi-source data is integrated, improving the comprehensiveness and accuracy of the monitoring data. The video surveillance camera 3 can monitor the appearance of the contact network in real time, helping to promptly detect physical damage or other abnormalities in the contact network. The vibration sensor module 1 can detect abnormal vibrations, which helps to detect potential structural problems at an early stage. The temperature / humidity sensor module 2 can monitor the temperature and humidity around the contact network, helping to assess the impact of environmental factors on the contact network and improve the environmental adaptability of the system. The microprocessor 4 is connected to the wireless communication module 5 via a UART interface, capable of sending and receiving data in real time, supporting remote monitoring and management, and improving the flexibility and efficiency of the monitoring system. This can effectively improve the accuracy and efficiency of contact network monitoring.

[0030] like Figure 2 As shown, microprocessor 4 is microcontroller U1, which is an STM32L051C8T6 microcontroller. This microcontroller core is a low-power ARM Cortex-M0. Operating voltage ranges from 1.65V to 3.6V, it consumes only 88μA / MHz in normal operation and 0.27μA in standby mode, with a wake-up time of 3.55μs. This microcontroller's low power consumption and short wake-up time significantly reduce power consumption in the terminal. It also offers powerful processing capabilities and a rich set of peripheral interfaces.

[0031] Wireless communication module 5 is a LoRaWAN module. It includes wireless communication chip U2. Its UART_RX pin is connected to pin 30 of microcontroller U1, and its UART_TX pin is connected to pin 31 of microcontroller U1. The LoRaWAN communication module is designed using the LoRa wireless communication chip ASR6501, which integrates a LoRa wireless transceiver, a LoRa modem, and a 32-bit RISC microcontroller. This module achieves a high sensitivity of -140dBm and a maximum transmit power of 21dBm. It also boasts high efficiency and low power consumption, with current consumption as low as 2μA in sleep mode, 10mA in receive mode, and only 52mA in transmit mode at a transmit power of 17dBm. This enables low-power, long-range communication for low-power wide area network (LPWAN) applications. The module can access the network using both ABP and OTAA methods. It operates in the 470-510MHz frequency band and operates between 2.5V and 3.7V.

[0032] like Figure 3 As shown, vibration sensor module 1 includes an accelerometer U3 and capacitor C18. Pin 7 of accelerometer U3 is grounded via capacitor C18. Pin 8 (INT1) of accelerometer U3 is connected to pin 10 of microcontroller U1. Pin 9 (INT2) of accelerometer U3 is connected to pin 11 of microcontroller U1. Pin 13 (SDA) of accelerometer U3 is connected to pin 12 of microcontroller U1. Pin 14 (SCL) of accelerometer U3 is connected to pin 13 of microcontroller U1. The vibration sensor uses the ADXL345 digital accelerometer. The ADXL345 is a small, thin, ultra-low-power 3-axis accelerometer with a measurement range of -16g to 16g and high resolution. The ADXL345 accelerometer operates on a 2.5V supply voltage.

[0033] like Figure 4 As shown, the temperature / humidity sensor module 2 includes a temperature / humidity sensor U4 and a capacitor C11. Pin 1 (SDA) of the temperature / humidity sensor U4 is connected to pin 46 of the microcontroller U1, and pin 6 (SCL) of the temperature / humidity sensor U4 is connected to pin 45 of the microcontroller U1. The highly sensitive and high-precision SI7006 temperature / humidity sensor simultaneously acquires humidity and temperature using the chip's integrated AD / DA converter. The SI7006 is operated in I2C mode for reading and writing, resetting (0xFE), measuring relative humidity, and maintaining master mode (0xE5).

[0034] Video surveillance camera 3 is a MIPI CSI high-definition camera equipped with a cooling fan. It features a Sony IMX219 sensor with an 8MP resolution, a 1 / 4-inch CMOS sensor size, a 2.2mm aperture, a 1.88mm focal length, a 120° field of view, and distortion less than 13.6%. MIPI CSI (Mobile Industry Processor Interface Camera Serial Interface) cameras typically support high resolution and provide clear images, helping to accurately monitor the status of the overhead line. The MIPI CSI interface typically offers low power consumption, ensuring image quality while reducing energy consumption and extending the device's lifespan. The MIPI CSI interface supports high-speed data transmission, ensuring fast and stable transmission of images captured by the camera to the processing unit, improving the monitoring system's responsiveness. The cooling fan effectively reduces heat generated by the camera during extended operation, ensuring stable operation even in high-temperature environments and extending the device's lifespan.

[0035] The specific embodiments described above further illustrate the purpose, technical solutions and beneficial effects of the present invention in detail. It should be understood that the above description is only a specific embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An intelligent monitoring device for contact network, characterized by: The invention comprises a vibration sensor module (1), a temperature / humidity sensor module (2), a video surveillance camera (3), a microprocessor (4) and a wireless communication module (5), wherein the vibration sensor module (1) is connected to the microprocessor (4) via an I2C interface and is used to monitor abnormal vibration; the temperature / humidity sensor module (2) is connected to the microprocessor (4) via an I2C interface and is used to monitor the temperature and humidity around the contact network; the video surveillance camera (3) is connected to the microprocessor (4) and is used to monitor the appearance of the contact network in real time; The microprocessor (4) is connected to the wireless communication module (5) via a UART interface and is used for sending and receiving wireless data.

2. The intelligent monitoring device for contact network according to claim 1, characterized in that: The microprocessor (4) is a single-chip microcomputer U1, and the single-chip microcomputer U1 is an STM32L051C8T6 single-chip microcomputer.

3. The intelligent monitoring device for contact network according to claim 2, characterized in that: The wireless communication module (5) is a LoRaWAN module, which includes a wireless communication chip U2, wherein the UART_RX pin of the wireless communication chip U2 is connected to the 30th pin of the single-chip microcomputer U1, and the UART_TX pin of the wireless communication chip U2 is connected to the 31st pin of the single-chip microcomputer U1.

4. The intelligent monitoring device for a contact network according to claim 3, characterized in that: The vibration sensor module (1) includes an accelerometer U3 and a capacitor C18, wherein the 7th pin of the accelerometer U3 is grounded through the capacitor C18, the 8th pin of the accelerometer U3 is connected to the 10th pin of the single-chip microcomputer U1, the 9th pin of the accelerometer U3 is connected to the 11th pin of the single-chip microcomputer U1, the 13th pin of the accelerometer U3 is connected to the 12th pin of the single-chip microcomputer U1, and the 14th pin of the accelerometer U3 is connected to the 13th pin of the single-chip microcomputer U1.

5. The intelligent monitoring device for contact network according to claim 4, characterized in that: The temperature / humidity sensor module (2) comprises a temperature and humidity sensor U4 and a capacitor C11. The first pin of the temperature and humidity sensor U4 is connected to the 46th pin of the single-chip microcomputer U1, and the sixth pin of the temperature and humidity sensor U4 is connected to the 45th pin of the single-chip microcomputer U1.

6. The intelligent monitoring device for contact network according to claim 5, characterized in that: The video surveillance camera (3) is a MIPICSI high-definition camera and is also equipped with a cooling fan.

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