Current collection line forest fire monitoring device based on wide-narrow band converged communication

Abstract

The utility model provides a power collection line forest fire monitoring device based on wide-narrow band converged communication, and the device comprises a data collection module which is used for collecting image data and environment data of a power collection line channel corridor in a photovoltaic field area; wherein the image data comprises an infrared temperature image, a visible light image and video data; the control module is electrically connected with the data acquisition module and is used for generating alarm information according to the infrared temperature image and the environment data; the wide-narrow band converged communication module is electrically connected with the control module and is used for transmitting alarm information, image data and environment data to the background; and the data storage unit is used for storing the image data and the environment data acquired by the data acquisition module.

Description

Technical Field

[0001] The utility model relates to the technical field of wildfire monitoring, in particular to a collector line wildfire monitoring device based on narrow and wide band integrated communication. Background Technique

[0002] With the rapid development of the photovoltaic new energy power generation industry, in order to improve the power generation efficiency of photovoltaic power generation, photovoltaic power generation areas are selected in areas with long sunshine time and high light intensity. Generally, the terrain conditions in these areas are complex or they are powerless areas far from the public power grid, which makes the collector lines of the outgoing lines in the photovoltaic power station area also face increasing operation and maintenance pressure. Among them, the monitoring of wildfire hazards in the areas through which the collector lines pass is particularly important and is a key monitoring object in the operation and maintenance of the collector lines of the outgoing lines in the photovoltaic power station area.

[0003] The existing Chinese patent with the publication number CN212785604U discloses a transmission line wildfire monitoring device, which includes a 360° pan-tilt, a wildfire monitoring device body and a pan-tilt motor. The wildfire monitoring device body includes an imaging module and an image processing board. The imaging module includes a first imaging module and a second imaging module. The first imaging module includes a first lens and a first line array CCD. The first lens is an ultraviolet lens with a bandpass of 200-300nm, and the first line array CCD is a GaN ultraviolet optical component with a transmission wavelength response range of 220-280nm. The second imaging module includes a second lens and a second line array CCD. The second lens is a visible light lens, and the second line array CCD is a silicon CCD. The optical axes of the first lens and the second lens are parallel.

[0004] When the above patent monitors wildfire hazards in signal-free areas and weak signal areas through which the collector line passes, it is difficult to transmit the corresponding monitoring information. Summary of the Utility Model

[0005] In view of the deficiencies in the prior art, the present utility model provides a collector line wildfire monitoring device based on narrow and wide band integrated communication, which solves the above problems existing in the prior art.

[0006] According to an embodiment of the present utility model, a collector line wildfire monitoring device based on narrow and wide band integrated communication includes:

[0007] A data acquisition module, configured to acquire image data and environmental data of the corridor of the collector line in the photovoltaic power station area; wherein, the image data includes: infrared temperature images, visible light images and video data;

[0008] A control module, electrically connected to the data acquisition module, configured to generate an alarm message according to the infrared temperature image and the environmental data;

[0009] A narrow and wideband integrated communication module, electrically connected to the control module, is used to transmit alarm information, image data, and environmental data to the background;

[0010] A data storage unit is used to store the image data and environmental data collected by the data acquisition module.

[0011] Preferably, the data acquisition module includes:

[0012] An environmental temperature and humidity sensor, electrically connected to the control module through the first I2C bus interface, is used to collect temperature data and humidity data of the collector line channel corridor in the photovoltaic field area in real time to obtain environmental data;

[0013] An infrared camera, electrically connected to the control module through USB, is used to collect infrared temperature images of the collector line channel corridor in the photovoltaic field area in real time;

[0014] A visible light camera, electrically connected to the control module through USB, is used to collect video data and visible light images of the collector line channel corridor in the photovoltaic field area after determining the wildfire hazard.

[0015] Preferably, it further includes:

[0016] A power supply unit, electrically connected to the control module.

[0017] Preferably, the narrow and wideband integrated communication module includes:

[0018] A LoRa narrowband transmission module, electrically connected to the control module through the UART serial port, is used to transmit the alarm information of the wildfire monitoring device to the background in real time;

[0019] A 5.8G broadband transmission module, electrically connected to the control module through the network interface, is used to transmit infrared thermal images, visible light images, video data, temperature data, and humidity data to the background after determining the wildfire hazard.

[0020] Preferably, the power supply unit includes:

[0021] A BMS power management, electrically connected to the control module through the I / O bus;

[0022] A storage battery, electrically connected to the BMS power management;

[0023] A solar energy harvesting unit, electrically connected to the BMS power management.

[0024] Preferably, it further includes:

[0025] A real-time clock, electrically connected to the control module interface through the second I2C bus interface.

[0026] Preferably, the data storage unit is electrically connected to the control module through the SPI bus interface.

[0027] Compared with the prior art, the utility model has the following beneficial effects: the wide and narrow band integrated communication module is provided to realize the long-distance real-time transmission of the alarm information of the wildfire monitoring device, so as to realize the transmission of the wildfire monitoring information in the signal-free area and weak signal area through which the collector line passes. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a system schematic diagram of an embodiment of the utility model. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0029] The technical solutions in the utility model will be further described below with reference to the drawings and embodiments.

[0030] As Figure 1 shown, an embodiment of the utility model provides a collector line wildfire monitoring device based on wide and narrow band integrated communication, including:

[0031] A data acquisition module, configured to acquire image data and environmental data of the corridor of the collector line channel in the photovoltaic power generation area; wherein, the image data includes: infrared temperature image, visible light image and video data;

[0032] A control module, electrically connected to the data acquisition module, configured to generate alarm information according to the infrared temperature image and environmental data;

[0033] A wide and narrow band integrated communication module, electrically connected to the control module, configured to transmit alarm information, image data and environmental data to the background;

[0034] A data storage unit, configured to store the image data and environmental data acquired by the data acquisition module;

[0035] The working principle of the above technical solution: in actual use, the data acquisition module acquires the image data and environmental data of the corridor of the collector line channel in the photovoltaic power generation area; wherein, the image data includes: infrared temperature image, visible light image and video data; then the control module generates alarm information according to the infrared temperature image and environmental data; the wide and narrow band integrated communication module transmits the alarm information generated by the control module to the background, and at the same time transmits the environmental data and image data stored in the data storage unit to the background through the wide and narrow band integrated communication module, so as to realize the real-time early warning of wildfires in the corridor of the photovoltaic collector line channel; wherein, the corridor of the collector line channel refers to both sides of the line passed by the collector line; the collector line includes photovoltaic collector line poles and transmission lines, and the wildfire monitoring device is arranged on the photovoltaic collector line poles; wherein, the control module is an STM32H743 microcontroller;

[0036] Advantages of the above technical solution: Through the above solution design, the wide and narrowband integrated communication module is provided to realize the long-distance real-time transmission of the alarm information of the wildfire monitoring device, so as to realize the transmission of wildfire monitoring information in the signal-free area and weak signal area through which the collector line passes.

[0037] In one embodiment, the data acquisition module includes:

[0038] An environmental temperature and humidity sensor, electrically connected to the control module through the first I2C bus interface, and used to collect temperature data and humidity data of the collector line passage corridor in the photovoltaic field area in real time to obtain environmental data;

[0039] An infrared camera, electrically connected to the control module through USB, and used to collect infrared temperature images of the collector line passage corridor in the photovoltaic field area in real time;

[0040] A visible light camera, electrically connected to the control module through USB, and used to collect video data and visible light images of the collector line passage corridor in the photovoltaic field area after determining the wildfire hazard;

[0041] Working principle and advantages of the above technical solution: In the actual use process, the environmental temperature and humidity sensor is used to collect temperature data and humidity data of the collector line passage corridor in the photovoltaic field area in real time to obtain environmental data; the infrared camera is used to collect infrared temperature images of the current monitoring area (a part of the monitored collector line passage corridor in the photovoltaic field area); after the control module generates an alarm message based on the temperature data, humidity data and infrared temperature images, the visible light camera is activated to collect video data and visible light images of the current monitoring area; among them, generating an alarm message indicates that there is a wildfire hazard in the current area; if there is no hazard, no alarm message is generated; among them, the visible light camera is a 500W OV5640 lens, the infrared camera lens uses vanadium oxide uncooled detection, the resolution is 256x192, the focal length of the thermal imaging lens is 15mm, and they are respectively connected to the control module through the USB interface; the environmental temperature and humidity sensor uses an SHT30 model sensor and is connected to the control module through the I2C bus interface;

[0042] The control module collects infrared temperature images, converts the infrared temperature images into a heat map matrix, takes the highest temperature data in the matrix and compares it with a preset alarm threshold. When it is higher than the alarm threshold, it is considered that there is a risk of wildfire occurrence. At the same time, based on the collected temperature data and humidity data, it is finally determined whether there is a risk of wildfire. That is, if there is a risk of wildfire, an alarm message is generated. Among them, the process of using temperature data and humidity data for judgment is as follows: the probability of wildfire occurrence is judged through a preset environmental temperature and humidity risk probability model. When the probability of wildfire occurrence is greater than the preset probability, an alarm message is generated for early warning. For example, when the humidity is greater than 75% or the temperature is less than 0°C, the wildfire risk probability is 5%. When the humidity is between 75% and 55%, the wildfire occurrence probability is 10%. When the humidity is below 55% and the temperature is greater than 5°C, the wildfire occurrence probability is 50%. When the humidity is below 30% and the temperature is greater than 5°C, the wildfire occurrence probability is 80%. Among them, the specific model parameters are adjusted according to the geographical and climatic conditions of different regions.

[0043] In one embodiment, it further includes:

[0044] A power supply unit, electrically connected to the control module;

[0045] The power supply unit includes:

[0046] BMS power management, electrically connected to the control module through the I / O bus;

[0047] A storage battery, electrically connected to the BMS power management;

[0048] A solar energy harvesting unit, electrically connected to the BMS power management;

[0049] The working principle and beneficial effects of the above technical solution: The BMS power management controls the storage battery to supply power to the entire wildfire monitoring device. At the same time, the solar energy harvesting unit is a photovoltaic solar panel, which can convert solar energy into electrical energy for the wildfire monitoring device to use.

[0050] In one embodiment, the narrow and wideband fusion communication module includes:

[0051] A LoRa narrowband transmission module, electrically connected to the control module through the UART serial port, and used to transmit the alarm information of the wildfire monitoring device to the background in real time;

[0052] A 5.8G broadband transmission module, electrically connected to the control module through the network interface, and used to transmit infrared thermal images, visible light images, video data, temperature data and humidity data to the background after determining the wildfire hazard;

[0053] Working principle and beneficial effects of the above technical solution: The control module of the wildfire monitoring device transmits information to the background through the LoRa narrowband transmission module, thereby transmitting the alarm information generated by the control module to the background; among them, LoRa narrowband communication can achieve a propagation distance that is 3-5 times longer than that of traditional wireless radio frequency communication, which enables it to provide effective communication in signal-free areas or areas with weak signal coverage; thus, the wildfire monitoring information in the signal-free areas and weak signal areas passed by the collector line can be transmitted; after transmitting the alarm information, the control module transmits infrared temperature images, temperature data, humidity data, visible light images, and video data to the background through the 5.8G broadband transmission module, enabling the background to further analyze the data; among them, the LoRa narrowband transmission module uses the 470Mhz frequency band.

[0054] To minimize the overall power consumption of the wildfire monitoring device, the 5.8G broadband transmission module usually operates in the shutdown mode, and the system communicates with the background through the LoRa narrowband low-power transmission module; when a wildfire hazard is detected, the 5.8G broadband transmission module is only activated to upload infrared temperature images, temperature data, humidity data, visible light images, and video data. Through this narrowband and broadband communication mechanism, the system power consumption is reduced, thereby reducing the capacity configuration of batteries, etc., and reducing the system hardware cost.

[0055] In one embodiment, it further includes:

[0056] A real-time clock, electrically connected to the control module interface through a second I2C bus interface.

[0057] Working principle of the above technical solution: The real-time clock uses DS1302 and is connected to the control module through the I2C bus interface.

[0058] In one embodiment, the data storage unit is electrically connected to the control module through an SPI bus interface.

[0059] Working principle of the above technical solution: The data storage unit uses a NandFlash large-capacity storage chip and is connected to the control module through an SPI bus interface; the data storage unit is used to store image data and device working status data, with a maximum support for 30 days of data storage, and uses a cyclic storage method.

[0060] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the purpose and scope of the technical solutions of the present invention, and they should all be covered within the scope of the claims of the present invention.

Claims

1. A collector line forest fire monitoring device based on broadband and narrowband fusion communication, characterized in that: include: A data acquisition module is used to collect image data and environmental data of the photovoltaic field collector line corridor; wherein the image data includes: infrared temperature image, visible light image and video data; A control module, electrically connected to the data acquisition module, for generating alarm information according to the infrared temperature image and environmental data; A broadband and narrowband fusion communication module is electrically connected to the control module and is used to transmit alarm information, image data and environmental data to the background; The data storage unit is used to store the image data and environmental data collected by the data collection module.

2. The collector line forest fire monitoring device based on wide-narrowband fusion communication according to claim 1, characterized in that: The data acquisition module includes: The environmental temperature and humidity sensor is electrically connected to the control module through the first I2C bus interface, and is used to collect temperature data and humidity data of the corridor of the photovoltaic field collector line in real time to obtain environmental data; The infrared camera is electrically connected to the control module via USB and is used to collect infrared temperature images of the collector line corridor of the photovoltaic field in real time; The visible light camera is electrically connected to the control module via USB and is used to collect video data and visible light images of the corridor of the photovoltaic field collector line after determining the potential wildfire hazard.

3. The collector line forest fire monitoring device based on wide-narrowband fusion communication according to claim 1, characterized in that: Also includes: The power supply unit is electrically connected to the control module.

4. The collector line forest fire monitoring device based on wide-narrowband fusion communication as claimed in claim 2, characterized in that: The broadband and narrowband fusion communication module includes: The LoRa narrowband transmission module is electrically connected to the control module through the UART serial port and is used to transmit the alarm information of the mountain fire monitoring device to the background in real time; The 5.8G broadband transmission module is electrically connected to the control module through the network port interface, and is used to transmit infrared thermal images, visible light images, video data, temperature data and humidity data to the background after determining the hidden danger of wildfire.

5. The collector line forest fire monitoring device based on wide-narrowband fusion communication as claimed in claim 3, characterized in that: The power supply unit includes: BMS power management, electrically connected to the control module via the I / O bus; The battery is electrically connected to the BMS power management; The solar energy collection unit is electrically connected to the BMS power management.

6. The collector line forest fire monitoring device based on wide-narrowband fusion communication according to claim 1, characterized in that: Also includes: The real-time clock is electrically connected to the control module interface via the second I2C bus interface.

7. The collector line forest fire monitoring device based on wide-narrowband fusion communication according to claim 1, characterized in that: The data storage unit is electrically connected to the control module via the SPI bus interface.

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