Power station wireless communication system based on LoRa technology

Abstract

The invention discloses a power station wireless communication system based on a LoRa technology. The system comprises a plurality of station LoRa wireless communication devices, a repeater in wireless communication with the station LoRa wireless communication devices, and a server terminal in wireless communication with the repeater. The site LoRa wireless communication equipment comprises a processor, a signal receiving module, a power supply module, a LoRa communication transmitting module, a LoRa communication receiving module, a data storage module and a signal interface module; the repeater comprises an MCU, a LoRa sending module and a LoRa receiving module, and can relay and transmit wireless signals in real time. The system is provided with an independent LoRa electric power station wireless communication system which does not depend on electric power station power supply, wireless signal transmission is carried out through relay of the repeaters powered by renewable energy sources, and the system has higher reliability and low maintenance requirements. The method is hopeful to play a key role in construction and transformation of a future power system, helps to realize optimal configuration and efficient management of power resources, and provides powerful assistance for sustainable development of the power industry.

Description

Technical Field

[0001] This invention relates to a wireless communication system for power stations, and more particularly to a wireless communication system for power stations based on LoRa technology. Background Technology

[0002] In critical power locations such as DC stations and substations, signal transmission typically involves relaying signals from monitoring systems to repeaters. This process primarily relies on wired and wireless transmission methods. However, wired wiring has gradually revealed several problems in practical applications. First, it requires a massive amount of work, demanding significant manpower and resources for line laying and maintenance. Second, costs remain high, with expensive cable procurement and installation, and substantial ongoing maintenance costs. Third, it occupies considerable space, limiting the layout of power facilities and significantly reducing overall operational efficiency and flexibility.

[0003] LoRa communication employs linear frequency modulation spread spectrum technology, modulating data information onto a relatively wide frequency band for transmission. This method enables long-distance signal transmission at low power and provides strong anti-interference capabilities. Under ideal conditions, LoRa transmission distances can reach several kilometers or even tens of kilometers, meeting the long-distance communication needs of many IoT scenarios. Furthermore, LoRa devices consume extremely low power during operation, typically only a few milliwatts to tens of milliwatts, extending battery life to several years. This makes them suitable for applications requiring long-term deployment and where frequent battery replacements are difficult.

[0004] Applying LoRa wireless communication technology to the communication process of site monitoring has become an ideal choice to overcome the limitations of traditional wired wiring methods. LoRa wireless communication technology enables wireless data transmission, significantly improving data collection efficiency and meeting the urgent needs of power system development, making it an important industry trend. By centrally receiving signals through repeaters and bypassing public network transmission, data security can be greatly enhanced, effectively avoiding the risks of data leakage and communication interruption caused by factors such as the instability and vulnerability of the public network. This provides strong support for the stable and efficient operation of the power system and powerfully promotes the power industry towards intelligence and informatization. Patent publication numbers CN119967317A, "A LoRa Wireless Communication Power Monitoring System, Medium, and Control Method"; CN216647159U, "A Power Equipment Monitoring System Based on LoRa Wireless Transmission Technology"; and CN212064265U, "A Substation Real-Time Monitoring System Based on LoRa Wireless Transmission Technology," all involve long-distance monitoring of power stations via LoRa wireless communication. These systems rely on the power system to power the wireless transmission system, depend on the stations for wireless signal relay transmission, and can only rely on residual battery power for wireless transmission when a power failure occurs, posing a reliability risk. Summary of the Invention

[0005] The purpose of this invention is to overcome the shortcomings of the prior art and provide a power station wireless communication system based on LoRa technology that uses a repeater powered by renewable energy to relay wireless transmission.

[0006] To achieve the above objectives, the technical solution adopted by the present invention is as follows: A power station wireless communication system based on LoRa technology includes multiple station LoRa wireless communication devices, a repeater for wireless communication with the station LoRa wireless communication devices, and a server terminal for wireless communication with the repeater. Each station LoRa wireless communication device includes a processor, a signal receiving module, a power supply module, a LoRa communication transmitting module, a LoRa communication receiving module, a data storage module, and a signal interface module. Each repeater includes an MCU, a LoRa transmitting module, and a LoRa receiving module, and can relay wireless signals in real time.

[0007] Furthermore, the site LoRa wireless communication device and / or repeater converts renewable energy into electricity through a renewable energy conversion device to power the battery of the power module of the site LoRa wireless communication device and / or repeater.

[0008] Furthermore, the signal interface module is equipped with wired communication interfaces, including an Ethernet interface and a USB interface, as well as wireless communication interfaces, including Wi-Fi and Bluetooth.

[0009] Furthermore, there are multiple repeaters connected to form a topological connection structure.

[0010] Furthermore, both the LoRa wireless communication device and the server terminal at the site are equipped with corresponding data encryption / decryption processing modules and protocol conversion modules: performing data encryption / decryption and protocol conversion on the received and sent information.

[0011] Furthermore, the system has frequency scanning, channel evaluation, and switching functions, and can select the best channel for communication; when the scanning detects that the frequency band is interfered with, it switches the frequency band according to a predetermined program until a stable frequency band is found for communication.

[0012] Furthermore, the server terminal includes a LoRa backend processing module and a display component.

[0013] Furthermore, the battery is powered by a wind turbine.

[0014] Furthermore, the battery is powered by connecting to a solar photovoltaic panel.

[0015] Furthermore, the battery is powered by connecting a wind turbine and a solar photovoltaic panel.

[0016] The beneficial effects of this invention are as follows: The LoRa-based power station wireless communication system of this invention is an independent LoRa power station wireless communication system that does not rely on power station power supply. It uses repeaters powered by renewable energy for wireless signal transmission, resulting in higher reliability and lower maintenance requirements. The LoRa devices at each station are relatively independent; a failure in one LoRa device will not affect communication at other stations. With these unique advantages, this invention is expected to play a crucial role in future power system construction and renovation, helping to optimize the allocation and efficient management of power resources and providing strong support for the sustainable development of the power industry. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the system principle of the present invention; Figure 2 This is a schematic diagram of a system according to an embodiment of the present invention. Detailed Implementation

[0018] The present invention will be further described in detail below with reference to embodiments, such as... Figure 1 and 2 As shown, a power station wireless communication system based on LoRa technology is disclosed. The system includes multiple LoRa wireless communication devices at power stations, repeaters communicating wirelessly with the LoRa wireless communication devices at power stations, and a server terminal communicating wirelessly with the repeaters. Each LoRa wireless communication device at a power station includes a processor, a signal receiving module, a power supply module, a LoRa communication transmitting module, a LoRa communication receiving module, a data storage module, and a signal interface module. Each repeater includes an MCU, a LoRa transmitting module, and a LoRa receiving module, capable of relaying wireless signals in real time. The repeater's battery is powered by a connection to a wind turbine and a solar photovoltaic panel. The signal interface module is equipped with wired communication interfaces, including Ethernet and USB interfaces, and wireless communication interfaces, including Wi-Fi and Bluetooth. Both the LoRa wireless communication devices at power stations and the server terminal have corresponding data encryption / decryption processing modules and protocol conversion modules: performing data encryption / decryption and protocol conversion on received and transmitted information. The system has frequency scanning, channel evaluation, and switching functions, and can select the optimal channel for communication; when interference is detected during scanning, the system switches frequency bands according to a predetermined program until a stable frequency band is found for communication. The server terminal includes a LoRa backend processing module and a display component. The specific solution and component selection are as follows: Processor: Select a high-performance, low-power processor, such as the STM32 series chips, with sufficient processing power and storage capacity to meet the needs of data processing, protocol stack operation and network management.

[0019] LoRa transceiver module: Select a LoRa module with appropriate power amplifier and receiver sensitivity, such as SX1278 or SX1262, based on actual application requirements to achieve long-distance, highly reliable data transmission. Optional multi-frequency LoRa modules can be configured to achieve multi-channel communication through frequency switching, thereby increasing system capacity.

[0020] Power module: Employs a high-efficiency power management chip to control battery charging and discharging, and monitor battery power. A well-designed power circuit provides stable power to all components of the repeater, and energy-saving measures are implemented to reduce power consumption.

[0021] Data storage module: Equipped with large-capacity non-volatile memory, such as flash memory or SD card, for storing node registration information, communication and signal data, network configuration parameters, etc. It also employs a data caching mechanism to temporarily store data during wireless transmission congestion or server unavailability, uploading it once communication is restored.

[0022] Signal interface module: Equipped with wired communication interfaces, such as Ethernet and USB interfaces, for high-speed data transmission with servers or locally configured devices. It also includes wireless communication interfaces, such as Wi-Fi and Bluetooth, to enable multi-mode communication.

[0023] The above content is only used to illustrate the technical solution of the present invention. Simple modifications or equivalent substitutions made by those skilled in the art to the technical solution of the present invention do not depart from the essence and scope of the technical solution of the present invention.

Claims

1. A wireless communication system for power stations based on LoRa technology, characterized in that: The system includes multiple LoRa wireless communication devices at various sites, repeaters that communicate wirelessly with the LoRa wireless communication devices at each site, and server terminals that communicate wirelessly with the repeaters. Each LoRa wireless communication device at a site includes a processor, a signal receiving module, a power supply module, a LoRa communication transmitting module, a LoRa communication receiving module, a data storage module, and a signal interface module. Each repeater includes an MCU, a LoRa transmitting module, and a LoRa receiving module, and can relay wireless signals in real time.

2. The power station wireless communication system based on LoRa technology according to claim 1, characterized in that: The site LoRa wireless communication device and / or repeater converts renewable energy into electricity through a renewable energy conversion device to power the battery of the power module of the site LoRa wireless communication device and / or repeater.

3. The power station wireless communication system based on LoRa technology according to claim 1, characterized in that: The signal interface module is equipped with wired communication interfaces, including an Ethernet interface and a USB interface, as well as wireless communication interfaces, including Wi-Fi and Bluetooth.

4. The power station wireless communication system based on LoRa technology according to claim 1, characterized in that: The repeaters are multiple and connected to form a topological connection structure.

5. The power station wireless communication system based on LoRa technology according to claim 1, characterized in that: The LoRa wireless communication device and server terminal at the site are equipped with corresponding data encryption / decryption processing modules and protocol conversion modules: to encrypt and decrypt the received and sent information and to convert the protocol.

6. The power station wireless communication system based on LoRa technology according to claim 1, characterized in that: The system has frequency scanning, channel evaluation and switching functions, and can select the best channel for communication; when the scan detects that the frequency band is interfered with, it switches the frequency band according to a predetermined program until a stable frequency band is found for communication.

7. The power station wireless communication system based on LoRa technology according to claim 1, characterized in that: The server terminal includes a LoRa backend processing module and a display component.

8. The power station wireless communication system based on LoRa technology according to claim 2, characterized in that: The battery is powered by a wind turbine.

9. The power station wireless communication system based on LoRa technology according to claim 2, characterized in that: The battery is powered by a solar photovoltaic panel.

10. The power station wireless communication system based on LoRa technology according to claim 2, characterized in that: The battery is powered by connecting a wind turbine and a solar photovoltaic panel.

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