Intelligent data acquisition terminal based on LoRa wireless
By using passive convection circulation and magnetic dust collection components, the heat dissipation and dust problems of LoRa wireless data acquisition terminals in high-temperature environments are solved, achieving efficient heat dissipation and dust prevention, and ensuring normal operation of the equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-02
- Publication Date
- 2026-03-03
AI Technical Summary
LoRa wireless data acquisition terminals have poor heat dissipation performance in high-temperature environments. Traditional heat dissipation solutions increase power consumption or allow dust and moisture to enter, affecting the lifespan of the device.
A passive convection cooling system with heat dissipation chambers, ventilation channels, and heat dissipation fins is adopted, combined with magnetic dust collection components, to achieve fanless cooling and dust collection by utilizing the principle of natural rise of hot air and gravity.
Effective heat dissipation reduces processor temperature, avoids frequency throttling, prevents dust from clogging ventilation channels, and extends device lifespan.
Smart Images
Figure CN223967980U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of data acquisition technology, specifically to an intelligent data acquisition terminal based on LoRa wireless. Background Technology
[0002] LoRa is an ultra-long-range wireless transmission scheme based on spread spectrum technology. It is a low-power long-range wireless communication technology, mainly used for data acquisition in remote, low-power environmental monitoring and industrial IoT fields. The LoRa smart data acquisition terminal is an important part of the LoRa wireless self-organizing network communication network.
[0003] In high-temperature environments or during prolonged operation, LoRa wireless data acquisition terminals generate significant heat from the air processor and LoRa wireless communication module. Traditional cooling solutions typically rely on fans or simple ventilation holes. However, fans increase power consumption, while open ventilation holes allow dust and moisture to enter, affecting the device's lifespan. Therefore, this paper proposes a LoRa-based intelligent data acquisition terminal to address these issues. Utility Model Content
[0004] The purpose of this invention is to provide a smart data acquisition terminal based on LoRa wireless technology to solve the problems mentioned in the background.
[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a smart data acquisition terminal based on LoRa wireless, including a shell, a sensor module, a processor and a LoRa wireless communication module, wherein a heat dissipation component is provided inside the shell, and a dust collection component is provided inside the shell;
[0006] The heat dissipation component includes a heat dissipation cavity, an isolation cavity is provided inside the outer shell, a ventilation channel is provided inside the outer shell, heat dissipation fins are fixedly connected inside the heat dissipation cavity, and a protective net is fixedly connected to the outer shell.
[0007] Preferably, the sensor module is fixedly connected to the housing, and the processor and the LoRa wireless communication module are both fixedly connected inside the isolation cavity.
[0008] Preferably, the sensor module is an SHT30 temperature and humidity sensor, the processor is an STM32 low-power processor, and the LoRa wireless communication module uses a Semtech SX1276 chip to achieve long-distance low-power transmission of 2 to 5 kilometers in urban areas and 15 kilometers in suburban areas.
[0009] Preferably, the heat dissipation cavity is located inside the outer shell, the protective mesh is connected to the heat dissipation cavity, and the number of heat dissipation fins is two and they are symmetrically distributed inside the heat dissipation cavity.
[0010] Preferably, the ventilation duct includes two vertical channels and one horizontal channel, and the heat dissipation cavity and the isolation cavity are respectively connected to the two vertical channels.
[0011] Preferably, the dust collection component includes a collection frame, a first magnet is fixedly connected to the outside of the collection frame, and a second magnet is fixedly connected to the inside of the outer shell.
[0012] Preferably, the collection frame is movably connected inside the outer shell, the opening of the collection frame is located directly below the horizontal channel, the inner bottom wall of the collection frame is designed to be inclined, the number of first magnets is two and they are symmetrically distributed on the left and right sides of the collection frame, and the number of second magnets is two and they are magnetically attracted to the two first magnets respectively.
[0013] Compared with the prior art, the beneficial effects achieved by this utility model are:
[0014] First, this utility model utilizes the principle of natural rising of hot air to form a passive convection circulation, which discharges the heat generated by the processor in the isolation cavity into the heat dissipation cavity through the ventilation channel, and accelerates the heat dissipation from the heat dissipation cavity through the heat dissipation fins, thus avoiding the processor from reducing its frequency due to high temperature, which would affect the normal use of the entire data acquisition terminal.
[0015] Secondly, this utility model utilizes gravity to allow dust in the ventilation duct to fall naturally into the collection frame, avoiding blockage of the ventilation duct. With the combined use of the first and second magnets, the collection frame can be quickly disassembled and installed, avoiding the adverse effects of dust on the processor. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0017] Figure 2 This is a schematic diagram of another axial integral structure of the present invention;
[0018] Figure 3 This is a schematic diagram of the overall cross-sectional structure of this utility model;
[0019] Figure 4 This is a cross-sectional view of the outer shell of this utility model;
[0020] Figure 5 This is a cross-sectional view of the collection frame of this utility model.
[0021] The components include: 1. Outer shell; 2. Sensor module; 3. Processor; 4. LoRa wireless communication module; 5. Heat dissipation assembly; 501. Heat dissipation cavity; 502. Isolation cavity; 503. Ventilation duct; 504. Heat dissipation fins; 505. Protective net; 6. Dust collection assembly; 601. Collection frame; 602. First magnet; 603. Second magnet. Detailed Implementation
[0022] 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.
[0023] This utility model provides the following technical solution:
[0024] Example 1
[0025] Please see Figure 1 , Figure 2 , Figure 3 and Figure 4 A smart data acquisition terminal based on LoRa wireless includes a housing 1, a sensor module 2, a processor 3 and a LoRa wireless communication module 4, and a heat dissipation component 5 is provided inside the housing 1;
[0026] The heat dissipation component 5 includes a heat dissipation cavity 501, an isolation cavity 502 is provided inside the outer shell 1, a ventilation channel 503 is provided inside the outer shell 1, heat dissipation fins 504 are fixedly connected inside the heat dissipation cavity 501, and a protective net 505 is fixedly connected to the outer shell 1.
[0027] The sensor module 2 is fixedly connected to the housing 1, and the processor 3 and the LoRa wireless communication module 4 are both fixedly connected inside the isolation cavity 502.
[0028] Fixing the sensor module 2 to the housing 1 ensures that the sensor module 2 is directly exposed to the monitoring environment, avoiding data distortion caused by the housing 1 blocking it. Fixing the processor 3 and the LoRa wireless communication module 4 inside the isolation cavity 502 can protect the core electronic components from dust and moisture corrosion through the sealing design of the isolation cavity 502, while reducing the interference of the heat dissipation component 5 on the sensitive circuit.
[0029] Sensor module 2 is specifically an SHT30 temperature and humidity sensor, processor 3 is specifically an STM32 low-power processor, and LoRa wireless communication module 4 uses a Semtech SX1276 chip to achieve long-distance low-power transmission of 2 to 5 kilometers in urban areas and 15 kilometers in suburban areas.
[0030] The SHT30 temperature and humidity sensor is highly accurate and low-power, matching the energy-saving requirements of LoRa data acquisition terminals. The STM32 low-power processor draws less than 1μA in sleep mode, which can extend the working time of the terminal in power-free scenarios. The Semtech SX1276 chip achieves long-distance transmission of 2 to 5 kilometers in urban areas and 15 kilometers in suburban areas through spread spectrum technology.
[0031] The heat dissipation cavity 501 is located inside the outer shell 1. The protective mesh 505 is connected to the heat dissipation cavity 501. There are two heat dissipation fins 504, which are symmetrically distributed inside the heat dissipation cavity 501.
[0032] The symmetrical distribution of heat dissipation fins 504 increases the contact area with air, accelerates the heat dissipation from the heat dissipation cavity 501, and prevents the processor 3 from throttling due to high temperature. The protective mesh 505 is connected to the heat dissipation cavity 501, allowing air circulation while blocking large foreign objects such as insects and leaves from entering, reducing the frequency of maintenance.
[0033] The ventilation duct 503 includes two vertical channels and one horizontal channel, and the heat dissipation cavity 501 and the isolation cavity 502 are respectively connected to the two vertical channels.
[0034] The ventilation duct 503 utilizes the principle of natural rise of hot air to form a passive convection circulation, which discharges the heat in the isolation chamber 502 through the heat dissipation chamber 501 without the need for fan power. The vertical channel connects the heat dissipation chamber 501 and the isolation chamber 502 respectively to ensure heat exchange efficiency, while the horizontal channel guides dust to settle into the dust collection component 6.
[0035] By utilizing the above technical solution, the principle of natural rising of hot air is used to form a passive convection circulation. The heat generated by the processor 3 when it is working in the isolation cavity 502 is discharged into the heat dissipation cavity 501 through the ventilation duct 503. The heat is then dissipated from the heat dissipation cavity 501 through the heat dissipation fins 504, thus preventing the processor 3 from reducing its frequency due to high temperature, which would affect the normal use of the entire data acquisition terminal.
[0036] Example 2
[0037] Please see Figure 1 , Figure 2 , Figure 3 and Figure 5 Furthermore, based on Embodiment 1, the following is obtained: a dust collection component 6 is provided inside the outer shell 1;
[0038] The dust collection component 6 includes a collection frame 601, a first magnet 602 fixedly connected to the outside of the collection frame 601, and a second magnet 603 fixedly connected to the inside of the outer shell 1.
[0039] The first magnet 602 and the second magnet 603 are attracted and fixed together, which enables quick assembly and disassembly and facilitates cleaning of accumulated dust. The opening of the collection frame 601 is located below the horizontal channel, and the dust can fall into the collection frame 601 naturally by gravity, thus avoiding blockage of the ventilation duct 503.
[0040] The collection frame 601 is movably connected inside the outer shell 1. The opening of the collection frame 601 is located directly below the horizontal channel. The inner bottom wall of the collection frame 601 is designed to be inclined. There are two first magnets 602, which are symmetrically distributed on the left and right sides of the collection frame 601. There are two second magnets 603, which are magnetically attracted to the two first magnets 602 respectively.
[0041] The inclined inner bottom wall design of the collection frame 601 concentrates dust to one side of the collection frame 601, preventing secondary re-spreading. The symmetrical magnet layout ensures that the collection frame 601 is subjected to uniform force during installation, avoiding seal failure due to vibration displacement.
[0042] Through the above technical solution, gravity is used to allow the dust in the ventilation duct 503 to fall naturally into the collection frame 601, avoiding blockage of the ventilation duct 503. With the combined use of the first magnet 602 and the second magnet 603, the collection frame 601 can be quickly disassembled and installed, avoiding the adverse effects of dust on the processor 3.
[0043] In actual operation, when this device is in use, the sensor module 2 collects temperature and humidity environmental data and sends it to the processor 3 for processing. The processed data is then transmitted to the cloud platform over a long distance via the LoRa wireless communication module 4. The cloud platform enables data analysis and storage. When the entire data acquisition terminal generates a large amount of heat in a high-temperature environment or during long-term operation, the symmetrical heat dissipation fins 504 in the heat dissipation cavity 501 increase the heat dissipation area. Combined with the ventilation duct 503, the heat from the processor 3 and the LoRa wireless communication module 4 in the isolation cavity 502 is naturally dissipated using the principle of thermal convection. At the same time, the dust collection component 6 collects the settled dust through the magnetic collection frame 601 below the horizontal ventilation duct 503. The inclined bottom wall design prevents secondary dust generation, and the protective net 505 blocks large particles from entering, achieving efficient synergy between heat dissipation and dust prevention.
[0044] 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 may be made to these embodiments without departing from the principles and spirit, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A smart data acquisition terminal based on LoRa wireless, comprising a housing (1), a sensor module (2), a processor (3), and a LoRa wireless communication module (4), characterized in that: A heat dissipation component (5) is provided inside the outer shell (1), and a dust collection component (6) is provided inside the outer shell (1). The heat dissipation assembly (5) includes a heat dissipation cavity (501), an isolation cavity (502) is provided inside the outer shell (1), a ventilation channel (503) is provided inside the outer shell (1), heat dissipation fins (504) are fixedly connected inside the heat dissipation cavity (501), and a protective net (505) is fixedly connected on the outer shell (1).
2. The intelligent data acquisition terminal based on LoRa wireless according to claim 1, characterized in that: The sensor module (2) is fixedly connected to the housing (1), and the processor (3) and the LoRa wireless communication module (4) are both fixedly connected inside the isolation cavity (502).
3. The intelligent data acquisition terminal based on LoRa wireless according to claim 1, characterized in that: The sensor module (2) is specifically an SHT30 temperature and humidity sensor, the processor (3) is specifically an STM32 low-power processor, and the LoRa wireless communication module (4) uses a Semtech SX1276 chip to achieve long-distance low-power transmission of 2 to 5 kilometers in urban areas and 15 kilometers in suburban areas.
4. The intelligent data acquisition terminal based on LoRa wireless according to claim 1, characterized in that: The heat dissipation cavity (501) is located inside the outer shell (1), the protective net (505) is connected to the heat dissipation cavity (501), and the number of heat dissipation fins (504) is two and they are symmetrically distributed in the heat dissipation cavity (501).
5. The intelligent data acquisition terminal based on LoRa wireless according to claim 1, characterized in that: The ventilation duct (503) includes two vertical channels and one horizontal channel, and the heat dissipation cavity (501) and the isolation cavity (502) are respectively connected to the two vertical channels.
6. The intelligent data acquisition terminal based on LoRa wireless according to claim 5, characterized in that: The dust collection component (6) includes a collection frame (601), a first magnet (602) is fixedly connected to the outside of the collection frame (601), and a second magnet (603) is fixedly connected inside the outer shell (1).
7. A smart data acquisition terminal based on LoRa wireless according to claim 6, characterized in that: The collection frame (601) is movably connected inside the outer shell (1). The opening of the collection frame (601) is located directly below the horizontal channel. The inner bottom wall of the collection frame (601) is designed to be inclined. There are two first magnets (602) symmetrically distributed on the left and right sides of the collection frame (601). There are two second magnets (603) that are magnetically attracted to the two first magnets (602) respectively.