A composite sensor device for environmental data acquisition

Abstract

The present application relates to the technical field of sensor, in particular to a kind of compound sensing device for environmental data acquisition, including shell, illumination sensing unit, temperature and humidity sensing unit, sensing unit, main control module, communication module and power module.The present application is layered along the axial direction by illumination sensing unit, temperature and humidity sensing unit and sensing unit, realizes the synchronous acquisition of multiple environmental parameters, avoids the scattered arrangement of multiple devices, and reduces cost.Temperature and humidity sensing unit and sensing unit are respectively arranged in upper chamber and lower chamber separated by partition, realize air path isolation, reduce the mutual interference between sensors, reduce the frequency of manual maintenance through radiation shield and cleaning assembly.Main control module carries out filtering, fusion processing and abnormal self-checking to acquisition data, improves the continuity and reliability of monitoring data, integrates LoRa and NB-IoT dual-mode communication, can ensure data stable return in remote area with poor signal coverage, and is suitable for field deployment.

Description

Technical Field

[0001] This invention relates to the field of sensor technology, and more specifically to a composite sensing device for environmental data acquisition. Background Technology

[0002] Environmental data collection is a fundamental task in fields such as agricultural production, ecological protection, and meteorological research. With the development of Internet of Things (IoT) technology, sensors can be used to monitor data on various environmental factors.

[0003] Existing devices centrally house multiple sensors within a single cavity, lacking physical isolation and protection. The excessive number of sensor power supply and transmission cables complicates installation. Light sensors are susceptible to dust blockage, leading to reduced light transmittance, affecting measurement accuracy, and resulting in high maintenance costs. Temperature and humidity sensors exposed to sunlight experience radiation errors. Thermal and airflow interference between sensors reduces the accuracy and stability of the acquired data. The sensor may generate heat during operation, which can easily cause data drift in the temperature sensor.

[0004] In complex field environments, sensors are susceptible to electromagnetic interference, sudden changes, and other factors, resulting in long-term blind spots in monitoring data and failing to meet the needs of long-term field deployment.

[0005] To address the aforementioned problems, existing technologies have proposed several solutions. Patent publication number CN116772937A describes a highly integrated environmental factor sensing assembly that controls the opening and closing of blades to change their relative positions, achieving good protection and heat dissipation. Patent publication number CN219977457U describes a temperature and humidity sensor that uses a filter to remove dust from the air, thereby improving the detection accuracy of the temperature and humidity sensing motherboard.

[0006] Existing technologies have solved the problems of insufficient physical protection of sensors and decreased detection accuracy. However, when multiple sensors are combined, mutual interference exists, data fusion processing and anomaly self-checking are difficult, and the reliability of monitoring data cannot be guaranteed in complex field environments.

[0007] To address this, a composite sensing device for environmental data acquisition is proposed. Summary of the Invention

[0008] The purpose of this invention is to provide a composite sensing device for environmental data acquisition. This device achieves multi-parameter acquisition through axially layered sensor deployment, utilizes a cleaning component for automatic cleaning of the light sensor, employs cavity isolation to avoid thermal interference between the temperature / humidity sensor and the CO2 sensor, enhances data reliability through data fusion and anomaly self-checking, and integrates dual-mode communication and solar power supply. This addresses the problems of sensor interference, high maintenance costs, low data reliability, and poor field adaptability in existing technologies. To achieve the above objectives, this invention provides the following technical solution:

[0009] A composite sensing device for environmental data acquisition includes a housing, a light sensing unit, a temperature and humidity sensing unit, and The system comprises a sensing unit, a main control module, a communication module, and a power supply module, including the light sensing unit, the temperature and humidity sensing unit, and the... The sensing units are arranged in layers along the axial direction of the housing and are electrically connected to the main control module, which is electrically connected to the communication module.

[0010] Preferably, the light-sensing unit includes a light-transmitting cover, a light sensor, and a cleaning component. The light-sensing unit is located at the uppermost end of the housing, and the cleaning component has bristles that contact the surface of the light-transmitting cover. Optionally, the light-transmitting cover is made of tempered glass or PC material with high light transmittance, and the bristles are made of anti-static silicone or soft bristles to prevent static electricity from attracting dust.

[0011] Preferably, the cleaning component further includes a micro motor and a transmission mechanism. The micro motor is electrically connected to the main control module, and the transmission mechanism is connected to the brush bristles to drive the bristles to move along the surface of the light-transmitting cover. The cleaning component can automatically clean dust and water stains from the surface of the light-transmitting cover periodically, ensuring the accuracy of light measurement.

[0012] Preferably, the housing includes a first chamber and a second chamber. The first chamber is a sealed cavity, in which the main control module, the communication module, and the power module are disposed. The second chamber is a ventilated cavity, and is divided into an upper chamber and a lower chamber by a partition. The temperature and humidity sensing unit is disposed in the upper chamber. The sensing unit is located within the lower chamber. The sealed chamber is moisture-proof and dust-proof, extending circuit life; the ventilated chamber ensures sufficient contact between the sensor and air; the upper and lower chambers are isolated; and the temperature and humidity sensing unit and... The sensing units are separated to avoid thermal and airflow interference between sensors.

[0013] Preferably, the temperature and humidity sensing unit includes a temperature and humidity sensor and a radiation shield. The radiation shield has multiple coaxially spaced annular blades, and the temperature and humidity sensor is detachably installed in the central cavity of the radiation shield. Optionally, the annular blades are arranged in an umbrella-like, multi-layered pattern and are made of a high-reflectivity material. The radiation shield blocks solar radiation, reduces measurement errors caused by radiant heat from the temperature and humidity sensor, prevents rainwater infiltration, and protects the sensor components.

[0014] Preferably, the The sensing unit includes an air intake and The acquisition probe has an air inlet located on the side wall of the housing where the lower chamber is situated. The data acquisition probe is housed within the lower chamber, and the surface of the air inlet is fitted with a removable waterproof membrane and insect-proof net. This prevents rainwater, insects, and dust from entering the sensor chamber through the air inlet, adapting to complex outdoor environments.

[0015] Preferably, the main control module includes a microcontroller, a storage unit, and a real-time clock. The microcontroller is used to control the light sensor unit, the temperature and humidity sensor unit, and... The environmental data collected by the sensing unit is filtered and fused, and it has an anomaly self-checking function. It can promptly detect sensor faults and avoid data blind spots.

[0016] Preferably, the communication module includes a LoRa communication chip and an NB-IoT communication chip. This reduces device power consumption, expands coverage areas, and improves data transmission reliability.

[0017] Preferably, the power module includes a solar panel, a lithium battery pack, and a charging management unit. The power module is used to supply power to the light sensor unit, the temperature and humidity sensor unit, and the... The sensing unit, the main control module, and the communication module are powered. Power can be supplied for extended periods, supporting long-term field deployment.

[0018] The beneficial effects of this invention are as follows:

[0019] 1. The composite sensing device for environmental data acquisition described in this invention comprises a light sensing unit, a temperature and humidity sensing unit, and... The sensing units are arranged in layers along the axial direction to achieve synchronous acquisition of multiple environmental parameters, avoiding the need for multiple devices to be arranged separately and reducing costs.

[0020] 2. The composite sensing device for environmental data acquisition described in this invention integrates a temperature and humidity sensing unit and... The sensing units are respectively housed in an upper chamber and a lower chamber separated by a partition, achieving gas path isolation and avoiding... The heat generated by the sensor during operation can interfere with temperature and humidity measurements. The radiation shield effectively reduces the impact of low solar radiation and rain on temperature and humidity measurements. The cleaning component automatically cleans the surface of the light sensor, reducing dust obstruction. This reduces the frequency of manual maintenance, makes it suitable for field deployment, and improves the stability of simultaneous multi-parameter data acquisition.

[0021] 3. The composite sensing device for environmental data acquisition described in this invention filters, fuses, and performs anomaly self-checks on the acquired data through a main control module, thereby improving the continuity and reliability of the monitoring data. It integrates LoRa and NB-IoT dual-mode communication, ensuring stable data transmission in remote areas with poor signal coverage. Attached Figure Description

[0022] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0024] Figure 2 This is a schematic diagram of the module distribution structure of the present invention;

[0025] Figure 3 This is a schematic diagram of the cleaning component of the present invention.

[0026] In the diagram: 1. Housing; 11. First chamber; 12. Second chamber; 121. Upper chamber; 122. Lower chamber; 2. Light sensing unit; 21. Light-transmitting cover; 22. Light sensor; 23. Cleaning assembly; 231. Brush bristles; 232. Micro motor; 233. Transmission mechanism; 3. Temperature and humidity sensing unit; 31. Temperature and humidity sensor; 32. Radiation shield; 321. Annular blade; 4. Sensing unit; 41. Air intake; 42. 43. Data Acquisition Probe; 44. Waterproof Membrane; 5. Insect Net; 6. Main Control Module; 71. Microcontroller; 82. Storage Unit; 93. Real-Time Clock; 10. Communication Module; 11. LoRa Communication Chip; 12. NB-IoT Communication Chip; 13. Power Supply Module; 14. Solar Panel; 15. Lithium Battery Pack; 16. Charging Management Unit. Detailed Implementation

[0027] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0028] Please see Figures 1 to 3 This invention provides a composite sensing device for environmental data acquisition, the technical solution of which is as follows:

[0029] A composite sensing device for environmental data acquisition includes a housing 1, a light sensing unit 2, and a temperature and humidity sensing unit 3. The system comprises sensing unit 4, main control module 5, communication module 6, and power module 7, including the light sensing unit 2, the temperature and humidity sensing unit 3, and the main control module 5. The sensing units are arranged in layers along the axial direction of the housing 1 and are electrically connected to the main control module 5, which in turn is electrically connected to the communication module 6. Specifically, each sensor unit is connected to the main control module 5 via a ribbon cable or an FPC flexible ribbon cable.

[0030] As one embodiment of the present invention, refer to Figure 2 , Figure 3 The light-sensing unit 2 includes a light-transmitting cover 21, a light sensor 22, and a cleaning component 23. The light-sensing unit 2 is located at the uppermost end of the housing 1. The cleaning component 23 has bristles 231 that contact the surface of the light-transmitting cover 21. The cleaning component 23 also includes a micro motor 232 and a transmission mechanism 233. The micro motor 232 is electrically connected to the main control module 5, and the transmission mechanism 233 is connected to the bristles 231 to drive the bristles 231 to move along the surface of the light-transmitting cover 21. Optionally, the light-transmitting cover 21 is fixed to the housing 1 by a threaded connection or a snap-fit. The cleaning component 23 is activated periodically according to a preset time, and the transmission mechanism 233 drives the bristles 231 to reciprocate or rotate, cleaning dust and water stains from the outer wall of the light-transmitting cover 21.

[0031] As one embodiment of the present invention, refer to Figure 2 The housing 1 includes a first chamber 11 and a second chamber 12. The first chamber 11 is a sealed cavity, in which the main control module 5, the communication module 6, and the power module 7 are disposed. The second chamber 12 is a ventilated cavity, and is divided into an upper chamber 121 and a lower chamber 122 by a partition. The temperature and humidity sensing unit 3 is disposed in the upper chamber 121. The sensing unit 4 is located in the lower chamber 122.

[0032] As one embodiment of the present invention, refer to Figure 1 , Figure 2 The temperature and humidity sensing unit 3 includes a temperature and humidity sensor 31 and a radiation shield 32. The radiation shield 32 is constructed with multiple coaxially spaced annular blades. The temperature and humidity sensor 31 is detachably installed in the central cavity of the radiation shield 32. The annular blades 321 are tilted downward at a certain angle, allowing rainwater to slide down their upper surfaces. Optionally, there are 4-8 annular blades 321, with a spacing of 5mm-10mm between them.

[0033] As one embodiment of the present invention, refer to Figure 2 The The sensing unit 4 includes an air inlet 41 and The acquisition probe 42, the air inlet 41 is located on the side wall of the housing 1 where the lower chamber 122 is located, the The sampling probe 42 is disposed within the lower chamber 122, and the surface of the air inlet 41 is fitted with a removable waterproof membrane and an insect-proof net. The air inlet 41 is circular or strip-shaped, allowing outside air to enter the lower chamber 122 through it. The waterproof membrane and insect-proof net prevent moisture, dust, and insects from entering. Optionally, a miniature fan can be installed inside the air inlet 41 to accelerate airflow.

[0034] As one embodiment of the present invention, refer to Figure 2 The main control module 5 includes a microcontroller 51, a storage unit 52, and a real-time clock 53. The microcontroller 51 is used to control the light sensor unit 2, the temperature and humidity sensor unit 3, and... The environmental data collected by sensor unit 4 is filtered and fused, and it has an anomaly self-checking function. Specifically, if the environmental data exceeds a set threshold, or if there is a continuous lack of communication response, the device is judged to be malfunctioning.

[0035] As one embodiment of the present invention, refer to Figure 2 The communication module 6 includes a LoRa communication chip 61 and an NB-IoT communication chip 62. The main control module 5 reads the signal strength values ​​of the LoRa communication chip 61 and the NB-IoT communication chip 62, and preferentially selects the communication chip with higher signal strength and lower power consumption to send data.

[0036] As one embodiment of the present invention, refer to Figure 2 The power module 7 includes a solar cell array 71, a lithium battery array 72, and a charging management unit 73. The power module 7 is used to power the light sensor unit 2, the temperature and humidity sensor unit 3, and the... The sensing unit 4, the main control module 5, and the communication module 6 are powered. The solar cell array 71 is mounted on the top outer wall of the housing 1.

[0037] The foregoing has shown and described the basic principles and beneficial effects of the present invention. However, the present invention is not limited to the above embodiments. Various changes and modifications can be made to the present invention without departing from its effects and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A composite sensing device for environmental data acquisition, characterized in that: It includes a housing (1), a light sensing unit (2), and a temperature and humidity sensing unit (3). The system comprises a sensing unit (4), a main control module (5), a communication module (6), and a power supply module (7), wherein the light sensing unit (2), the temperature and humidity sensing unit (3), and the main control module (5) are connected. The sensing units (4) are arranged in layers along the axial direction of the housing (1) and are electrically connected to the main control module (5) respectively. The main control module (5) is electrically connected to the communication module (6).

2. The composite sensing device for environmental data acquisition according to claim 1, characterized in that: The light sensing unit (2) includes a light-transmitting cover (21), a light sensor (22), and a cleaning component (23). The light sensing unit (2) is located at the uppermost end of the housing (1), and the cleaning component (23) is provided with bristles (231) that are in contact with the surface of the light-transmitting cover (21).

3. The composite sensing device for environmental data acquisition according to claim 2, characterized in that: The cleaning component (23) also includes a micro motor (232) and a transmission mechanism (233). The micro motor (232) is electrically connected to the main control module (5), and the transmission mechanism (233) is connected to the bristles (231) to drive the bristles (231) to move along the surface of the light-transmitting cover (21).

4. The composite sensing device for environmental data acquisition according to claim 3, characterized in that: The housing (1) includes a first chamber (11) and a second chamber (12). The first chamber (11) is a sealed cavity, in which the main control module (5), the communication module (6), and the power module (7) are disposed. The second chamber (12) is a ventilation cavity, which is divided into an upper chamber (121) and a lower chamber (122) by a partition. The temperature and humidity sensing unit (3) is disposed in the upper chamber (121). The sensing unit (4) is located in the lower chamber (122).

5. The composite sensing device for environmental data acquisition according to claim 4, characterized in that: The temperature and humidity sensing unit (3) includes a temperature and humidity sensor (31) and a radiation shield (32). The radiation shield (32) is constructed with multiple coaxially spaced annular blades (321). The temperature and humidity sensor (31) is detachably installed in the central cavity of the radiation shield (32).

6. The composite sensing device for environmental data acquisition according to claim 5, characterized in that: The The sensing unit (4) includes an air inlet (41) and The acquisition probe (42) has an air inlet (41) located on the side wall of the housing (1) where the lower chamber (122) is situated. The acquisition probe (42) is located in the lower chamber (122), and the surface of the air inlet (41) is equipped with a removable waterproof membrane (43) and an insect-proof net (44).

7. The composite sensing device for environmental data acquisition according to claim 6, characterized in that: The main control module (5) includes a microcontroller (51), a storage unit (52), and a real-time clock (53). The microcontroller (51) is used to control the light sensing unit (2), the temperature and humidity sensing unit (3), and... The environmental data collected by the sensing unit (4) is filtered and fused, and has an anomaly self-checking function.

8. The composite sensing device for environmental data acquisition according to claim 7, characterized in that: The communication module (6) includes a LoRa communication chip (61) and an NB-IoT communication chip (62).

9. A composite sensing device for environmental data acquisition according to claim 8, characterized in that: The power module (7) includes a solar cell array (71), a lithium battery array (72), and a charging management unit (73). The power module (7) is used to power the light sensor unit (2), the temperature and humidity sensor unit (3), and the... The sensing unit (4), the main control module (5) and the communication module (6) are powered.

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