CN210742747U - Agricultural wireless sensor device and system based on photovoltaic energy - Google Patents

Abstract

The utility model discloses an agricultural wireless sensing device based on photovoltaic energy, it belongs to the agricultural monitoring field. The soil humidity sensor comprises a supporting seat, wherein a supporting frame is arranged at the top of the supporting seat, at least one supporting leg is arranged at the bottom of the supporting seat, and a soil humidity sensor is arranged on the supporting leg; an air temperature and humidity sensor is arranged at the top of the control box or on the support frame, and a power module, a control unit connected with the power module and a wireless transmission module connected with the control unit are arranged in the control box; the top of the support frame is hinged with a sliding block, and the sliding block is arranged on a sliding rail positioned on the bottom surface of the mounting bracket; the upper surface of the mounting bracket is provided with a solar panel, and the solar panel is connected with the power supply module; the top of the supporting seat is provided with a chain transmission mechanism and a motor for driving the chain transmission mechanism, a chain of the chain transmission mechanism is hinged with the supporting rod, and the other end of the supporting rod is fixedly connected with the mounting bracket; the control unit is respectively connected with the soil humidity sensor and the air temperature and humidity sensor.

Description

Agricultural wireless sensor device and system based on photovoltaic energy

technical field

The utility model relates to the field of agricultural monitoring, in particular to an agricultural wireless sensor device and system based on photovoltaic energy.

Background technique

Agriculture has always been the root of the people's life and the foundation of life. Environmental factors essentially affect the growth of crops. The strong growth of crops is inseparable from a good growth environment. Timely and accurate grasp of the environmental factors of crop growth is the guarantee for the healthy growth of crops. Only relying on laborers to detect these natural factors is not only time-consuming and labor-intensive, but also has a low degree of accuracy, which cannot well guarantee the growth of crops.

Utility model content

In view of the above deficiencies in the prior art, the present invention aims to provide a photovoltaic energy-based agricultural wireless sensor device and system capable of automatically monitoring soil moisture and ambient temperature and humidity in a growing environment of crops.

In order to achieve the purpose of the above-mentioned invention and creation, the technical scheme adopted by the present utility model is:

Provided is an agricultural wireless sensor device based on photovoltaic energy, which comprises a support base, a support frame is provided at the top of the support base, at least one support leg is set at the bottom of the support base, and a soil moisture sensor is set on the support leg;

The middle of the support frame is provided with a control box and a rain shield above the control box, an air temperature and humidity sensor is arranged on the top of the control box or on the support frame, and the air temperature and humidity sensor is located under the rain shield. The control unit connected with the power module and the wireless transmission module connected with the control unit; the top of the support frame is hinged with the slider, the slider is installed on the slide rail located on the bottom surface of the installation bracket, and can slide relative to the rail; the upper surface of the installation bracket A solar panel is provided, and the solar panel is connected with the power module;

The top of the support base is provided with a chain transmission mechanism and a motor for driving the chain transmission mechanism. The chain of the chain transmission mechanism is hinged with the support rod, and the other end of the support rod is fixedly connected with the mounting bracket; the control unit is respectively connected with the motor, the soil moisture sensor and the air temperature. Humidity sensor connection.

Further, the control unit is respectively connected with the display screen and the alarm device, the display screen and the alarm device are located on the support frame, and the display screen is connected with the control buttons for controlling its opening and closing.

Further, an ambient light sensor connected to the control unit is provided on the display screen.

Further, the control unit is connected with the WIFI module.

A photovoltaic energy-based agricultural wireless sensing system is also provided, which includes a plurality of any of the above photovoltaic energy-based agricultural wireless sensing devices, and all photovoltaic energy-based agricultural wireless sensing devices are wirelessly connected to the monitoring terminal.

The beneficial effects of the present utility model are:

The solar panel converts the collected solar energy into electrical energy and stores it in the power module, which is used to supply power to the agricultural wireless sensor device based on photovoltaic energy to achieve green energy supply. The air temperature and humidity sensor is used to detect air temperature and humidity, and the soil humidity sensor is used to detect soil humidity. The control unit and wireless transmission module are used to transmit the collected soil temperature and air temperature and humidity information to the remote monitoring terminal without wiring, which saves the installation and maintenance costs of the device and system. Users can obtain relevant data in time and take corresponding measures to make crops grow better.

The motor moves forward or reversely according to the interval time set in the control unit, thereby driving the chain to move up and down, one end of the support rod moves up and down with the chain, and the other end of the support rod drives the slider to displace relative to the mounting bracket, driving the mounting bracket and the horizontal plane. The included angle changes to realize the adjustment of the angle of the solar panel. Among them, the interval time is artificially set according to the rising and falling of the sun in a day, so that the angle of the solar panel is adapted to the angle of the sun, so as to make full use of the solar energy.

The photovoltaic energy-based agricultural wireless sensor system composed of the monitoring terminal and a plurality of photovoltaic energy-based agricultural wireless sensor devices collects and monitors the key parameters (such as air temperature and humidity, soil temperature) affecting the growth of crops through the ad hoc network. The standardized collection of crop elements is realized, which improves and strengthens the user's production, operation and management capabilities.

Description of drawings

1 is a schematic front view of an agricultural wireless sensor device based on photovoltaic energy in a specific embodiment;

2 is a schematic front view of an agricultural wireless sensor device based on photovoltaic energy in a specific embodiment;

Fig. 3 is the right side schematic diagram of Fig. 2;

Among them, 1. Soil humidity sensor; 2. Outrigger; 3. Support base; 4. Support frame; 5. Control box; 6. Air temperature and humidity sensor; 7. Weather shield; 8. Mounting bracket; 9. Solar panel ; 10, slider; 11, strut; 12, chain transmission mechanism; 13, motor.

Detailed ways

The specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings, so as to facilitate the understanding of the present invention by those skilled in the art. But it should be clear that the embodiments described below are only a part of the embodiments of the present invention, but not all of the embodiments. All other embodiments obtained by those of ordinary skill in the art without any creative work without departing from the spirit and scope of the present invention defined and determined by the appended claims fall within the protection scope of the present invention.

As shown in FIGS. 1 to 3 , the photovoltaic energy-based agricultural wireless sensor device includes a support base 3 , a support frame 4 is provided on the top of the support base 3 , and at least one support leg 2 is provided at the bottom of the support base 3 . 2 is provided with a soil moisture sensor 1 .

The middle of the support frame 4 is provided with a control box 5 and a flashing board 7 located above the control box 5, an air temperature and humidity sensor 6 is provided on the top of the control box 5 or on the support frame 4, and the air temperature and humidity sensor 6 is located below the flashing board 7 , to avoid a large gap between the value detected by the air temperature and humidity sensor 6 and the actual temperature and humidity value of the air caused by natural or artificial rain. The control box 5 is provided with a power module, a control unit connected with the power module, and a wireless transmission module connected with the control unit. The top of the support frame 4 is hinged with the slider 10, and the slider 10 is installed on the slide rail located on the bottom surface of the mounting bracket 8, and can slide relative to the slide rail; the upper surface of the mounting bracket 8 is provided with a solar panel 9, and the solar panel 9 is connected to the power supply Module connection.

The top of the support base 3 is provided with a chain transmission mechanism 12 and a motor 13 for driving the chain transmission mechanism 12. The chain of the chain transmission mechanism 12 is hinged with the support rod 11, and the other end of the support rod 11 is fixedly connected with the mounting bracket 8; The motor 13 , the soil moisture sensor 1 and the air temperature and humidity sensor 6 are connected.

In application, the legs 2 are buried in the soil, and heavy objects (such as stones) can be used to press on the support base 3, which further ensures the stability of the installed photovoltaic energy-based agricultural wireless sensor device.

The solar panel 9 converts the collected solar energy into electrical energy and stores it in the power module, which is used to power the agricultural wireless sensor device based on photovoltaic energy, the air temperature and humidity sensor 6 is used to detect the air temperature and humidity, and the soil humidity sensor 1 is used to detect Soil humidity, using the control unit and wireless transmission module to transmit the collected soil temperature and air temperature and humidity information to the remote monitoring terminal. The motor 13 moves forward or reversely according to the interval time set in the control unit, thereby driving the chain to move up and down, one end of the support rod 11 moves up and down with the chain, and the other end of the support rod 11 drives the slider 10 to move relative to the mounting bracket 8 to drive The angle between the mounting bracket 8 and the horizontal plane changes, so that the angle of the solar panel 9 can be adjusted. The interval time is artificially set according to the rising and falling of the sun in one day, so that the angle of the solar panel 9 is adapted to the angle of the sun.

During implementation, the preferred control unit of this scheme adopts the minimum system of CC2530 chip, the model of air temperature and humidity sensor 6 is AM2301, the model of soil humidity sensor 1 is FST100-2006, and the solar panel 9 adopts low-cost 120*38 polycrystalline solar energy The battery board and the power module include a low-cost, low-energy-consumption battery pack composed of four 1.5v rechargeable batteries in series. The model of the motor 13 is ZWBPD016016, and the wireless transmission module adopts the Zigbee wireless module LC12S.

The CC2530 chip is connected to the WIFI module. The model of the WIFI module is ty1178. The setting of the WIFI module greatly reduces the network obstruction of the system and improves the node transmission distance of the system. At the same time, CC2530 chip can also be connected with soil temperature sensor and CO2 concentration sensor to collect and monitor more data.

In addition, the CC2530 chip is connected with the display screen and the alarm device respectively. The display screen and the alarm device are located on the support frame 4, and the display screen is connected with the control buttons that control its opening and closing. The model of the display screen is 0.96OLED. led. When the values detected by the air temperature and humidity sensor 6 and the soil humidity sensor 1 are lower than the minimum threshold set in the control unit or higher than the maximum threshold set in the control unit, the light-emitting diode lights up. The user can directly observe the real-time air temperature and humidity value and soil humidity value by turning on the display screen by controlling the buttons on the spot. When the observation is not required, the display screen can be turned off to save the energy consumption of the device. At the same time, the display screen is provided with an ambient light sensor connected to the control unit, and the model of the ambient light sensor is BH1750. The display brightness of the display screen is automatically adjusted by the ambient light sensor combined with the control unit, so as to facilitate the user's observation and save energy consumption.

Using the ambient light sensor, before each actuation of the driving mechanism, the control unit compares the current ambient light intensity with the ambient light intensity threshold stored in the control unit, if it is less than the ambient light intensity threshold (determined as cloudy or rainy) , the driving mechanism is controlled to stop the current action that it should perform, so as to save the energy consumption of the device.

The interval time setting in the control unit takes 5:00 am Beijing time as the starting point of the device cycle time. The single cycle process is as follows: Initial state (as shown in Figure 1) - After the interval time is 6 hours, execute action 1 (solar panel ( 9) The plane is parallel to the horizontal plane) - after an interval of 2 hours, perform action 2 (as shown in Figure 2) - after an interval of 9 hours, perform action 3 (return to the initial state).

This solution also provides an agricultural wireless sensor system based on photovoltaic energy, which includes a plurality of the above-mentioned agricultural wireless sensor devices based on photovoltaic energy, and all the agricultural wireless sensor devices based on photovoltaic energy communicate wirelessly with the monitoring terminal. connect. The energy consumption of the whole system is low, the network capacity is large, and 1000 nodes can be arranged.

Claims (5)

1. An agricultural wireless sensor device based on photovoltaic energy, characterized in that it comprises a support base (3), the top of the support base (3) is provided with a support frame (4), and the bottom of the support base (3) is provided with a support frame (4). There is at least one supporting leg (2), and a soil moisture sensor (1) is arranged on the supporting leg (2); A control box (5) and a rain shield (7) located above the control box (5) are arranged in the middle of the support frame (4), and the top of the control box (5) or the support frame (4) An air temperature and humidity sensor (6) is provided on the upper part, and the air temperature and humidity sensor (6) is located under the weather shield (7); a power module is arranged in the control box (5) and is connected to the power module The control unit and the wireless transmission module connected with the control unit; the top of the support frame (4) is hinged with the slider (10), and the slider (10) is installed on the slider located on the bottom surface of the mounting bracket (8). on the rail, and can slide relative to the rail; the upper surface of the mounting bracket (8) is provided with a solar panel (9), and the solar panel (9) is connected with the power module; A chain transmission mechanism (12) and a motor (13) for driving the chain transmission mechanism (12) are arranged on the top of the support seat (3), and the chain of the chain transmission mechanism (12) is hinged to the support rod (11). , the other end of the support rod (11) is fixedly connected with the mounting bracket (8); the control unit is respectively connected with the motor (13), the soil moisture sensor (1) and the air temperature and humidity sensor (6). 2. The agricultural wireless sensor device based on photovoltaic energy according to claim 1, wherein the control unit is respectively connected with a display screen and an alarm device, and the display screen and the alarm device are located on the support frame (4). ), the display screen is connected with a control button that controls its opening and closing. 3 . The photovoltaic energy-based agricultural wireless sensor device according to claim 2 , wherein the display screen is provided with an ambient light sensor connected to the control unit. 4 . 4 . The photovoltaic energy-based agricultural wireless sensor device according to claim 1 , wherein the control unit is connected to a WIFI module. 5 . 5. An agricultural wireless sensing system based on photovoltaic energy, characterized in that it comprises a plurality of photovoltaic energy-based agricultural wireless sensing devices as described in any one of claims 1-4, and all photovoltaic energy-based agricultural wireless sensing devices Both are connected with the monitoring terminal for wireless communication.

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