Greenhouse crop growth environment detection device based on LTE-Cat.1

Abstract

The utility model discloses a greenhouse crop growth environment detection device based on LTE-Cat.1, which comprises a networking module and a communication unit connected with the networking module, the communication unit comprises a uart communication module, an RS485 communication module and an I2C communication module, the uart communication module is connected with a carbon dioxide sensor, and the RS485 communication module is connected with the I2C communication module. The carbon dioxide sensor is used for detecting carbon dioxide information in a greenhouse, the RS485 communication module is connected with a soil moisture content sensor and an illumination intensity sensor, the I2C communication module is connected with a temperature and humidity sensor, and the networking module is connected with a power supply module; the networking module is used as a remote communication unit and a data processing unit at the same time through an OPEN CPU scheme, an MCU and a peripheral circuit thereof can be omitted, the circuit is simpler, the cost is lower, meanwhile, the networking module transmits data detected by the sensor to a remote cloud platform or a communication terminal in real time, and the networking module is more convenient to use. The detection data of the sensor has good timeliness, and good growth of greenhouse crops is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of greenhouse crop environment detection, and in particular to a greenhouse crop growth environment detection device based on LTE-Cat.1. Background Art

[0002] In modern agricultural production, real-time monitoring and management of crop growth environment is crucial. Traditional environmental monitoring methods mainly rely on manual data collection or use limited wireless transmission technology. However, these methods have some defects, including but not limited to:

[0003] Limited data transmission capacity: Many existing agricultural environmental monitoring systems are limited by data transmission capacity and cannot achieve large-scale, high-frequency data transmission, thus affecting the ability to monitor and respond to the crop growth environment in a timely manner.

[0004] Limited network coverage: Some traditional wireless transmission technologies have limited network coverage in rural or remote areas, making it impossible to achieve real-time monitoring of distant farmland, limiting the efficiency and quality of agricultural production.

[0005] High energy consumption and high cost: Some sensor systems have the problems of high energy consumption and high cost, which is not conducive to their promotion and use in large-scale applications.

[0006] Lack of standardized solutions: Currently, there is still a lack of standardized solutions for agricultural growth environment monitoring, which leads to difficulties in compatibility and data integration between different systems, and limits the comprehensive analysis and application of monitoring data.

[0007] Data security and privacy protection: In some existing agricultural environmental monitoring systems, there are certain challenges in data security and privacy protection. Since the data collected by sensors may involve key information of agricultural production, such as crop growth status, soil quality, etc., it is crucial to ensure the security and privacy protection of data during transmission, storage and processing.

[0008] Real-time and accuracy: For crop growth environment monitoring, the real-time and accuracy of data are very important. However, some existing monitoring systems may have data delays or large errors, and cannot provide timely and accurate monitoring results, affecting the effective management and regulation of the crop growth environment.

[0009] Versatility and ease of operation: The diversity and complexity of agricultural production require that the monitoring system has a certain degree of versatility to meet the monitoring needs of different crops and different growth environments. At the same time, the ease of operation and deployment of the monitoring system is also one of the considerations to reduce the cost and difficulty of farmers in the process of use and maintenance.

[0010] Scalability and customizability: With the continuous development of agricultural technology and the changing needs of crop growth environment monitoring, the monitoring system should have certain scalability and customizability, and be able to flexibly respond to agricultural production scenarios of different scales and needs.

[0011] In summary, the existing technology has many shortcomings, and a more efficient, stable, economical and practical crop growth environment monitoring sensor system is needed to meet the needs of agricultural production. Summary of the invention

[0012] The utility model mainly solves the problem of delay in the existing technology for detecting the growth environment of crops; it provides a greenhouse crop growth environment detection device based on LTE-Cat.1, which transmits the growth environment detection data of crops in real time, has good timeliness and low cost.

[0013] The above-mentioned technical problems of the utility model are mainly solved by the following technical solutions: a greenhouse crop growth environment detection device based on LTE-Cat.1, including a networking module and a communication unit connected to the networking module, the communication unit including a uart communication module, an RS485 communication module and an I2C communication module, the uart communication module is connected to a carbon dioxide sensor, the carbon dioxide sensor is used to detect carbon dioxide information in the greenhouse, the RS485 communication module is connected to a soil moisture sensor and a light intensity sensor, the I2C communication module is connected to a temperature and humidity sensor, and the networking module is connected to a power supply module.

[0014] Preferably, the networking module is a 4G Cat.1 module.

[0015] Preferably, the power supply module comprises a power supply, a DCDC circuit and an LDO circuit. The power supply supplies power to the networking module through the DCDC circuit, and the power supply supplies power to the sensor through the LDO circuit.

[0016] Preferably, the power source is a battery or a solar power supply unit.

[0017] Preferably, a memory card is further included, wherein the memory card is connected to the networking module, and the memory card is used to store the detection information transmitted by the sensor.

[0018] Preferably, a cloud platform is further included, and the cloud platform is connected to a networking module, and the networking module transmits the detection information transmitted by the sensor to the cloud platform.

[0019] Preferably, it also includes a selection unit, through which the electrical connection between the networking module and the UART communication module and the RS485 communication module is switched.

[0020] The beneficial effect of the utility model is that the networking module is used as a remote communication unit and a data processing unit at the same time through the OPEN CPU solution, which can save the MCU and its peripheral circuits, making the circuit simpler and lowering the cost. At the same time, the networking module transmits the data detected by the sensor to a remote cloud platform or communication terminal in real time, so that the detection data of the sensor has good timeliness and ensures the good growth of greenhouse crops. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural block diagram of the detection device of the utility model.

[0022] Figure 2 It is a circuit diagram of the networking module of the utility model.

[0023] Figure 3 It is a circuit diagram of the power supply module of the utility model.

[0024] Figure 4 It is a schematic diagram of serial port level conversion and UART to RS485 switching of the utility model.

[0025] Figure 5 It is a circuit diagram of the I2C communication module of the utility model.

[0026] In the figure, 1, power supply module, 2, networking module, 3, cloud platform, 4, uart communication module, 5, RS485 communication module, 6, I2C communication module, 7, carbon dioxide sensor, 8, soil moisture sensor, 9, light intensity sensor, 10, temperature and humidity sensor. DETAILED DESCRIPTION

[0027] The technical solution of the utility model is further specifically described below through embodiments and in conjunction with the accompanying drawings.

[0028] Example:

[0029] like Figure 1As shown, a greenhouse crop growth environment detection device based on LTE-Cat.1 includes a power supply module 1 and a networking module 2 connected to the power supply module, the networking module is connected to a cloud platform 3, the networking module transmits the detection information transmitted by the sensor to the cloud platform, the networking module is also connected to a carbon dioxide sensor 7 through a uart communication module 4, the carbon dioxide sensor is used to detect carbon dioxide information in the greenhouse, the networking module is connected to a soil moisture sensor 8 and a light intensity sensor 9 through an RS485 communication module 5, the soil moisture sensor is used to detect soil information, the light intensity sensor is used to detect light intensity information in the greenhouse, and the networking module is also connected to a carbon dioxide sensor 7 through an uart communication module 4, the carbon dioxide sensor is used to detect carbon dioxide information in the greenhouse, and the networking module is also connected to a soil moisture sensor 8 and a light intensity sensor 9 through an RS485 communication module 5, the soil moisture sensor is used to detect soil information, and the light intensity sensor is used to detect light intensity information in the greenhouse. Block 6 is connected to the temperature and humidity sensor 10, which is used to detect the temperature and humidity information in the greenhouse. The networking module is also connected to a storage card, which is a SIM card, for storing the detection information transmitted by the sensor for data backup. It can also ensure that the detection data of the sensor will not be lost when the networking module is disconnected. When the SIM card stores data, it can perform synchronous backup storage at the last cloud platform, or it can only store data when the networking module is disconnected. It can be selectively selected after a simple judgment on whether the network is connected or not. When data is stored only when the network is disconnected, the service life of the SIM card can be extended, the cost of circuit electricity consumption can be reduced, and the service life of the device can be improved.

[0030] like Figure 2 As shown in the figure, the networking module adopts a 4G Cat.1 module, including a GNSS antenna, a USB circuit, and a debugging UART circuit, etc. The OPEN CPU solution is used to use the networking module as a remote communication unit and a data processing unit at the same time. After the 4GCat.1 module is powered, it can complete its own network injection and connection to the cloud platform within 3 to 10 seconds if the local network signal is good. The device will periodically upload detection data to the cloud platform.

[0031] like Figure 3 As shown, the power supply module includes a power supply, a DCDC circuit and an LDO circuit. The power supply supplies power to the networking module through the DCDC circuit, and supplies power to the sensor through the LDO circuit. The power supply is a battery or a solar power supply unit. Specifically, in this embodiment, the power supply is a 12V1A power supply. The 12V1A power supply is connected to P3. After power-on, the 12V power supply is converted into 3.8V through the DCDC circuit to supply power to the networking module ( Figure 3 Left). The 12V power supply is converted to VDD through the LDO circuit to power the sensor ( Figure 3 right).

[0032] In order to further reduce the electricity cost and extend the service life of the device, the utility model is also provided with a selection unit for receiving the detection data of different sensors. The selection unit can realize the on-off connection between the networking module and the uart communication module and the RS485 communication module. When the networking module is connected to the uart communication module through the selection unit, the detection data of the carbon dioxide sensor is received. When the networking module is connected to the RS485 communication module through the selection unit, the detection information of the soil moisture sensor and the light intensity sensor is received. Specifically, Figure 4 As shown, this embodiment switches the communication mode and sensing device of the device by selectively welding resistors R28, R29, R30, and R31. Only R28 and R30 are welded for RS485 communication, an external soil moisture sensor or light intensity sensor, the 28th pin of the MCU of the networking module is connected to the C pole of the transistor Q5 and pulled up to VDD_EXT through R24, the 29th pin is connected to the E pole of the transistor Q4, the 1st pin of the RS485 chip U6 is connected to the E pole of Q5 through the series connection R30, and the 4th pin is connected to the C pole of Q4 through the series connection R28 and pulled up to VDD through R27, realizing uart to RS485 conversion. Pin 2 and 3 of U5 are short-circuited to the C pole of Q3 and pulled up to VDD through R20, the E pole of Q3 is grounded, and the B pole is connected in series with R22 and connected to R28 to receive the input of RS485, realizing the automatic switching function of sending and receiving of RS485 circuit; only R29 and R31 are welded for uart communication, which can be connected to the carbon dioxide sensor, the 28th pin of MCU is connected to the C pole of transistor Q5 and pulled up to VDD_EXT through R24, the 29th pin is connected to the E pole of transistor Q4, the 1st pin of serial port interface P5 is connected to the E pole of Q5 through R31 in series, the 2nd pin is connected to the C pole of Q4 through R29 in series and pulled up to VDD through R27, the 3rd pin and the 4th pin are connected to VDD and GND, realizing the level conversion and communication under different levels of the two uart ports of the master and slave machines.

[0033] like Figure 5 As shown in the figure, it is a circuit diagram of the I2C communication module, which can be connected to an external temperature and humidity sensor. Pin 57 of the MCU is pulled up to VDD_EXT through R9 and connected to the S pole of the mos tube Q1. Pin 58 of the MCU is pulled up to VDD_EXT through R10 and connected to the S pole of the mos tube Q2. The G poles of Q1 and Q2 are both connected to VDD_EXT. Pin 1 of the I2C interface P2 is pulled up to VDD through R12 and connected to the D pole of Q2. Pin 2 is pulled up to VDD through R11 and connected to the D pole of Q1. Pins 3 and 4 are connected to GND and VDD on the board to realize level conversion and communication under different levels of the I2C master-slave interface.

[0034] The utility model uses the networking module as a remote communication unit and a data processing unit at the same time through the OPEN CPU solution, which can save the MCU and its peripheral circuits, making the circuit simpler and lowering the cost. At the same time, the networking module transmits the data detected by the sensor to a remote cloud platform or communication terminal in real time, so that the detection data of the sensor has good timeliness and ensures the good growth of greenhouse crops.

[0035] The above-described embodiment is only a preferred solution of the present invention and does not limit the present invention in any form. There are other variations and modifications without exceeding the technical solution described in the claims.

Claims

1. A greenhouse crop growth environment detection device based on LTE-Cat.1, characterized in that: include: A networking module and a communication unit connected to the networking module, the communication unit includes a uart communication module, an RS485 communication module and an I2C communication module, the uart communication module is connected to a carbon dioxide sensor, the carbon dioxide sensor is used to detect carbon dioxide information in a greenhouse, the RS485 communication module is connected to a soil moisture sensor and a light intensity sensor, the I2C communication module is connected to a temperature and humidity sensor, and the networking module is connected to a power supply module.

2. The greenhouse crop growth environment detection device based on LTE-Cat.1 according to claim 1 is characterized in that: The networking module is a 4G Cat.1 module.

3. A greenhouse crop growth environment detection device based on LTE-Cat.1 according to claim 1 or 2, characterized in that: The power supply module includes a power supply, a DCDC circuit and an LDO circuit. The power supply supplies power to the networking module through the DCDC circuit, and the power supply supplies power to the sensor through the LDO circuit.

4. The greenhouse crop growth environment detection device based on LTE-Cat.1 according to claim 3 is characterized in that: The power source is a battery or a solar power supply unit.

5. The greenhouse crop growth environment detection device based on LTE-Cat.1 according to claim 1 is characterized in that: It also includes a memory card, which is connected to the networking module and is used to store the detection information transmitted by the sensor.

6. The greenhouse crop growth environment detection device based on LTE-Cat.1 according to claim 1 is characterized in that: It also includes a cloud platform, which is connected to the networking module, and the networking module transmits the detection information transmitted by the sensor to the cloud platform.

7. The greenhouse crop growth environment detection device based on LTE-Cat.1 according to claim 1 is characterized in that: It also includes a selection unit, through which the electrical connection between the networking module and the UART communication module and the RS485 communication module is switched.

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