Sensor data acquisition device based on LoRa technology

Abstract

The utility model discloses a sensor data acquisition device based on LoRa technology, and relates to the technical field of unmanned aerial vehicles. Comprising a circuit board and further comprises an STM chip, the bottom of the STM chip is welded to the inner wall of the circuit board through soldering tin, a sensor data acquisition module is welded to the inner wall of the circuit board through soldering tin, and a lithium battery charging and discharging module is welded to the inner wall of the circuit board through soldering tin. The charging and discharging process is intelligently and reasonably controlled according to the electric quantity of the battery, the stable power supply of the device is ensured, the energy consumption of the device is greatly reduced and the endurance time of the unmanned aerial vehicle is prolonged in combination with low-power-consumption designs such as optimization of the acquisition frequency and the sleep mode, and the data acquisition device achieves the purpose of a sensor data acquisition device based on the LoRa technology.

Description

Technical Field

[0001] This utility model relates to the field of unmanned aerial vehicle (UAV) technology, specifically to a sensor data acquisition device based on LoRa technology. Background Technology

[0002] With the booming development of the low-altitude economy, drones are being used more and more widely and deeply in many fields such as agriculture, environmental monitoring, and logistics. In these application scenarios, accurate data collection and effective transmission have become crucial links.

[0003] In the field of agricultural plant protection, drones need to collect data such as temperature, humidity, and soil moisture in farmland in real time to help farmers accurately grasp the crop growth environment and optimize irrigation and fertilization strategies. However, traditional data acquisition devices have the problem of high energy consumption. Frequent charging or battery replacement not only reduces work efficiency but also increases operating costs, making it difficult to meet the needs of long-term, large-scale data acquisition tasks. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this invention provides a sensor data acquisition device based on LoRa technology, which solves the problems of high energy consumption and reduced work efficiency caused by frequent charging or battery replacement in traditional data acquisition devices.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model is implemented through the following technical solution: a sensor data acquisition device based on LoRa technology, including a circuit board and an STM chip. The bottom of the STM chip is soldered to the inner wall of the circuit board. A sensor data acquisition module is soldered to the inner wall of the circuit board. A lithium battery charging and discharging module is soldered to the inner wall of the circuit board. An SD card module is soldered to the inner wall of the circuit board.

[0008] Preferably, a clock module is soldered to the inner wall of the circuit board, and a LoRa transmission module is soldered to the inner wall of the circuit board. During flight, the UAV transmits the collected environmental data, such as temperature, humidity, and air quality, to the ground station in real time through the LoRa module, ensuring the real-time performance and accuracy of the data. The long-distance transmission characteristics of LoRa technology enable the UAV to collect and transmit data within a range of several kilometers, making it particularly suitable for large-scale environmental monitoring and agricultural plant protection tasks.

[0009] Preferably, the inner wall of the circuit board is soldered with a power input module, and the lithium battery charging and discharging module is fixedly connected to the outer wall of the STM chip via wires.

[0010] Preferably, the outer wall of the power input module is fixedly connected to the outer wall of the sensor data acquisition module via a wire, and the outer wall of the power input module is fixedly connected to the outer wall of the LoRa transmission module via a wire.

[0011] Preferably, the outer wall of the clock module is fixedly connected to the outer wall of the STM chip via wires, and the outer wall of the STM chip is fixedly connected to the outer wall of the LoRa transmission module via wires. Compared with traditional 4G / 5G communication methods, the use of the LoRa module significantly reduces data transmission costs, making it particularly suitable for large-scale UAV data acquisition tasks. The outer wall of the STM chip is fixedly connected to the outer wall of the SD card module via wires, and the outer wall of the SD card module is fixedly connected to the outer wall of the LoRa transmission module via wires. Encrypted LoRa communication ensures data security during transmission and prevents information from being illegally intercepted or tampered with.

[0012] The E32-433T20D module in the LoRa Transmission Module 6 is a popular choice in the IoT and wireless communication fields, offering several advantages: Long-distance transmission: The E32-433T20D module boasts a wide transmission range, theoretically exceeding two kilometers, with the actual distance depending on environmental conditions and antenna design. This makes it ideal for applications requiring extensive coverage, such as agricultural monitoring, environmental monitoring, and smart cities. Low power consumption: Designed for low-power operation, the module is suitable for battery-powered devices. In standby mode, the E32-433T20D effectively reduces power consumption and extends battery life, making it ideal for long-term monitoring and remote data acquisition applications. Strong anti-interference capability: The E32-433T20D module employs frequency hopping technology to effectively resist interference, improving the stability and reliability of data transmission. This feature is particularly important in complex environments or areas with congested signals, ensuring accurate data transmission and reducing packet loss. Ease of use: The E32-433T20D module features a simple, user-friendly interface design, facilitating easy connection and programming with various host control units (such as microcontrollers or Arduino). This reduces integration complexity and accelerates product development cycles. Excellent data transmission speed: The module supports multiple baud rates, up to 115200bps, adapting to the data transmission speed requirements of different applications. This enables the E32-433T20D to handle large amounts of real-time data transmission. Reliable communication protocols: The E32-433T20D supports multiple communication protocols (such as UART), ensuring compatibility with various devices and systems. Its serial communication method simplifies data exchange between devices. Strong adaptability: The module performs well in different working environments, operating stably under high temperature, low temperature, and varying humidity conditions, making it suitable for various application scenarios. Compact size and easy integration: The E32-433T20D module is small and easy to embed into various devices, facilitating wireless data transmission and making it suitable for space-constrained applications. Low cost: Compared to other communication modules, the E32-433T20D has a relatively low cost, reducing the overall system's economic burden and making it suitable for large-scale applications. Multiple power supply options: The module supports a wide range of power supply voltages, suitable for various power supply schemes, increasing flexibility in use.

[0013] In conclusion, the E32-433T20D module, with its long-range, low-power, high anti-interference capabilities, and ease of use, is an ideal choice for IoT applications, ensuring efficient and reliable data transmission.

[0014] (III) Beneficial Effects

[0015] This invention provides a sensor data acquisition device based on LoRa technology. It has the following features:

[0016] Beneficial effects:

[0017] (I) This sensor data acquisition device based on LoRa technology works with a lithium battery charging and discharging module and an STM chip to intelligently and rationally control the charging and discharging process according to the battery power, ensuring a stable power supply for the device. Combined with low-power designs such as optimized acquisition frequency and sleep mode, it significantly reduces the device's energy consumption, extends the drone's flight time, meets the needs of long-term, large-scale data acquisition tasks, reduces the frequency of frequent charging or battery replacement for the drone, improves work efficiency, and reduces operating costs.

[0018] (II) This sensor data acquisition device based on LoRa technology, through its LoRa transmission module, possesses long-distance, low-power, and anti-interference characteristics. Working in conjunction with the STM chip, it can stably transmit processed data to the ground station in real time. The clock module provides a precise clock signal, further ensuring the time accuracy of data transmission, enabling the ground station to acquire data promptly. Especially when abnormal data is detected and an alarm is triggered, alarm data can be transmitted quickly and preferentially, facilitating timely response and processing by the ground station and improving its ability to handle emergencies.

[0019] (III) This sensor data acquisition device based on LoRa technology transmits the acquired data to the SD card module for storage via an STM chip. Even if communication is interrupted or the drone returns, the data is still completely retained, ensuring the integrity and traceability of the data. This provides a solid foundation for subsequent in-depth data analysis, data value mining, and review of related tasks, avoiding losses caused by data loss.

[0020] (iv) This sensor data acquisition device based on LoRa technology is compatible with a variety of sensors through the sensor data acquisition module. It can collect rich environmental data in real time, such as temperature, humidity, air pressure, and air quality, comprehensively covering the monitoring needs of the low-altitude economic field. At the same time, the power input module provides stable power to ensure that the acquisition work continues to operate normally, ensuring the efficiency and accuracy of data acquisition, and providing a reliable basis for subsequent analysis and decision-making. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0022] Figure 2 This is a plan view of the entire utility model;

[0023] Figure 3 This is a circuit diagram of the circuit board of this utility model;

[0024] Figure 4 This is a schematic diagram of the STM chip of this utility model;

[0025] Figure 5This is a schematic diagram of the SD card module of this utility model;

[0026] Figure 6 This is a schematic diagram of the power input module of this utility model;

[0027] Figure 7 This is a flowchart of the entire utility model.

[0028] In the diagram: 1. Circuit board; 2. Clock module; 3. SD card module; 4. STM chip; 5. Sensor data acquisition module; 6. LoRa transmission module; 7. Power input module; 8. Lithium battery charging and discharging module. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] Please see Figure 1-7 This utility model provides a technical solution: a sensor data acquisition device based on LoRa technology, including a circuit board 1 and an STM chip 4. The bottom of the STM chip 4 is soldered to the inner wall of the circuit board 1. A sensor data acquisition module 5 is soldered to the inner wall of the circuit board 1. A lithium battery charging and discharging module 8 is soldered to the inner wall of the circuit board 1. An SD card module 3 is soldered to the inner wall of the circuit board 1. A clock module 2 is soldered to the inner wall of the circuit board 1. A LoRa transmission module 6 is soldered to the inner wall of the circuit board 1.

[0031] The inner wall of the circuit board 1 is soldered with a power input module 7. The lithium battery charging and discharging module 8 is fixedly connected to the outer wall of the STM chip 4 through wires. The outer wall of the power input module 7 is fixedly connected to the outer wall of the sensor data acquisition module 5 through wires. The outer wall of the power input module 7 is fixedly connected to the outer wall of the LoRa transmission module 6 through wires.

[0032] The outer wall of clock module 2 is fixedly connected to the outer wall of STM chip 4 via wires. The outer wall of STM chip 4 is fixedly connected to the outer wall of LoRa transmission module 6 via wires. The outer wall of STM chip 4 is fixedly connected to the outer wall of SD card module 3 via wires. The outer wall of SD card module 3 is fixedly connected to the outer wall of LoRa transmission module 6 via wires.

[0033] The device uses circuit board 1 as its basic carrier and integrates several key modules, including STM chip 4, sensor data acquisition module 5, lithium battery charging and discharging module 8, SD card module 3, clock module 2, LoRa transmission module 6, and power input module 7. These modules each perform their own functions and cooperate with each other to build a complete data acquisition and transmission system.

[0034] Before takeoff, users can configure parameters such as the drone's flight path, data acquisition frequency, and warning values ​​through the LCD screen and setting buttons on the ground station. After takeoff, the sensor data acquisition module 5 starts working. It is compatible with various sensors, such as temperature, humidity, air pressure, and air quality, and collects environmental data in real time. During this process, the power input module 7 provides stable power support to the sensor data acquisition module 5 to ensure its normal operation. The collected data is transmitted to the STM chip 4. The STM chip 4, as the core control unit of the device, is responsible for the initial processing and integration of the data.

[0035] After receiving the data from the sensor data acquisition module 5, the STM chip 4 will, on the one hand, transmit the data to the SD card module 3 for storage via wires. The SD card module 3, as a data storage unit, can ensure that the data can still be analyzed and processed after communication is interrupted or the drone returns to base, thus ensuring the integrity and traceability of the data. On the other hand, the STM chip 4 will analyze and judge the data according to the preset warning values.

[0036] In terms of data transmission, the LoRa transmission module 6 plays a crucial role. The LoRa transmission module 6 boasts advantages such as long-distance transmission, low power consumption, and anti-interference capabilities. Connected to the STM chip 4, the STM chip 4 transmits processed data to the LoRa transmission module 6. The LoRa transmission module 6 then transmits the data to the ground station in real time via LoRa technology. During transmission, the clock module 2 provides a precise clock signal for the entire system, ensuring the accuracy of data acquisition and transmission time, which is beneficial for accurate data analysis and processing. Simultaneously, the power input module 7 supplies power to the LoRa transmission module 6, ensuring its stable operation. When the UAV detects abnormal data and triggers an alarm during flight, the LoRa transmission module 6 prioritizes transmitting the alarm data to the ground station in real time, enabling ground station operators to respond and handle the situation promptly.

[0037] The lithium battery charging and discharging module 8 is connected to the STM chip 4 and is responsible for managing the charging and discharging of the lithium battery. During the operation of the device, the lithium battery charging and discharging module 8 can reasonably control the charging and discharging process according to the battery power status to ensure a stable power supply for the device. By optimizing the acquisition frequency and sleep mode and other low-power design strategies, combined with the effective management of the lithium battery charging and discharging module 8, the device can significantly reduce energy consumption, extend the flight time of the UAV, and meet the needs of long-term data acquisition tasks.

[0038] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0039] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A sensor data acquisition device based on LoRa technology, comprising a circuit board (1), characterized in that, It also includes an STM chip (4), the bottom of which is soldered to the inner wall of the circuit board (1), a sensor data acquisition module (5) is soldered to the inner wall of the circuit board (1), a lithium battery charging and discharging module (8) is soldered to the inner wall of the circuit board (1), and an SD card module (3) is soldered to the inner wall of the circuit board (1). 2.The LoRa-based sensor data acquisition device according to claim 1, characterized in that: The inner wall of the circuit board (1) is soldered with a clock module (2) and a LoRa transmission module (6) is soldered with a LoRa transmission module (6). 3.The LoRa-based sensor data acquisition device of claim 1, wherein: The inner wall of the circuit board (1) is soldered with a power input module (7), and the lithium battery charging and discharging module (8) is fixedly connected to the outer wall of the STM chip (4) through wires.

4. The sensor data collection device based on LoRa technology according to claim 3, characterized in that: The outer wall of the power input module (7) is fixedly connected to the outer wall of the sensor data acquisition module (5) via a wire, and the outer wall of the power input module (7) is fixedly connected to the outer wall of the lora transmission module (6) via a wire.

5. The LoRa-based sensor data acquisition device of claim 2, wherein: The outer wall of the clock module (2) is fixedly connected to the outer wall of the STM chip (4) via a wire, and the outer wall of the STM chip (4) is fixedly connected to the outer wall of the LoRa transmission module (6) via a wire. 6.The LoRa-based sensor data acquisition device of claim 2, wherein: The outer wall of the STM chip (4) is fixedly connected to the outer wall of the SD card module (3) via a wire, and the outer wall of the SD card module (3) is fixedly connected to the outer wall of the LoRa transmission module (6) via a wire.

Images