CN205038791U - Soil moisture content bluetooth data acquisition terminal - Google Patents

Abstract

The utility model relates to a soil moisture content bluetooth data acquisition terminal, including treater, communication module, collection module and two soil moisture content sensors, wherein: communication module with collection module all with the treater is connected, two soil moisture content sensors with collection module is connected. The utility model provides a soil moisture content bluetooth data acquisition terminal, high to soil moisture content's measuring accuracy, operating condition is stable, and the low power dissipation can satisfy practical application's needs well.

Description

A Soil Moisture Bluetooth Data Acquisition Terminal

technical field

The utility model belongs to the technical field of soil moisture measuring instruments, in particular to a soil moisture bluetooth data acquisition terminal.

Background technique

In order to improve the management level of flood control and drought relief in water conservancy and agriculture, quickly grasp the dynamics of land drought, and avoid or reduce losses caused by drought, gradually establishing a wide-coverage soil moisture monitoring system has become one of the important tasks of the corresponding management departments. The soil moisture information collection and remote monitoring system can realize long-term continuous monitoring of soil moisture (soil humidity). The shortcomings of the soil moisture information collection and remote monitoring system in the prior art are: 1. After the collection end product is started, the power cannot be cut off, so it has to wait for a few minutes before the power is turned off and enters the standby mode, and the battery is not easy to take out; 2. The standby power consumption is too high. Large; 3. The measurement accuracy is inaccurate, and the maximum deviation within the voltage acquisition measurement range is 5mV; 4. After connecting to Bluetooth, the current increases by more than 10mA; 5. The applicability of the charging device is low; 6. When the battery power of the device is reduced to about 7V , the measured data is not stable.

Utility model content

In view of the problems existing in the above-mentioned prior art, the purpose of this utility model is to provide a soil moisture bluetooth data acquisition terminal that can avoid the above-mentioned technical defects.

In order to realize above-mentioned utility model purpose, the technical scheme that the utility model adopts is as follows:

A soil moisture bluetooth data acquisition terminal includes a processor, a communication module, an acquisition module and two moisture sensors, wherein:

Both the communication module and the acquisition module are connected to the processor;

The two moisture sensors are connected with the collection module.

Further, the soil moisture bluetooth data collection terminal also includes a mobile phone and a central server, and the mobile phone is wirelessly connected to the communication module and the central server respectively.

Further, the processor is a single-chip microcomputer.

Further, the communication module is a BLE-4.0 module.

The utility model mainly collects and processes the water content information of the farmland soil, and at the same time sends the data to the central server. The utility model connects two moisture sensors (0-2.5V or 4-20mA) through an acquisition module realizing the interface of 0-2.5V or 4-20mA, and respectively measures the soil moisture content at different depths (10cm, 20cm) at the same place In some cases, since the moisture sensor collects 0-2.5V or 4-20mA data through the interface, the data collected by the moisture sensor is transmitted to the acquisition module, and the acquisition module transmits the data to the processor, and the processor transmits the data After packing, send it to the communication module, and then send the data wirelessly to the mobile phone through the communication module, and then use the mobile APP to calculate the soil moisture content through the calculation formula of soil moisture content, so that in the process of one collection, when soil at different depths After the conversion of moisture content data is completed, the mobile phone communicates wirelessly with the central server through the hydrological protocol or water resources protocol, and sends the converted data to the central server. The central server sorts, counts, analyzes and makes decisions on the obtained data, and tests the accuracy High, stable working state, low power consumption, can well meet the needs of practical applications.

Description of drawings

Fig. 1 is the structural representation of the utility model;

Figure 2 is a frame diagram of the connection relationship between the processor, the communication module and the acquisition module.

detailed description

In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model will be further described below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model, and are not intended to limit the utility model.

As shown in Figure 1, a soil moisture bluetooth data acquisition terminal includes a processor, a communication module, an acquisition module and two moisture sensors, wherein:

Both the communication module and the acquisition module are connected to the processor (as shown in Figure 2);

The two moisture sensors are connected to the acquisition module, and the two moisture sensors respectively measure the soil moisture content at different depths (10cm, 20cm) at the same place.

The soil moisture bluetooth data collection terminal also includes a mobile phone and a central server, and the mobile phone is wirelessly connected to the communication module and the central server respectively. The mobile phone communicates wirelessly with the central server through the hydrological protocol or the water resources protocol.

The processor runs the uCOSII embedded real-time operating system. The processor is a single-chip microcomputer, and the model is STM32F or STM32L.

The communication module is a BLE-4.0 module, the ultra-low power consumption sleep mode is lower than 1uA, and the CC2540 main chip design of TI is adopted.

The utility model mainly collects and processes the water content information of the farmland soil, and at the same time sends the data to the central server. The utility model connects two moisture sensors (0-2.5V or 4-20mA) through an acquisition module realizing a 0-2.5V or 4-20mA interface, and respectively measures the soil moisture content at different depths (10cm, 20cm) at the same place In some cases, since the moisture sensor collects 0-2.5V or 4-20mA data through the interface, the data collected by the moisture sensor is transmitted to the acquisition module, and the acquisition module transmits the data to the processor, and the processor transfers the data After packing, send it to the communication module, and then send the data wirelessly to the mobile phone through the communication module, and then use the mobile phone APP to calculate the soil moisture content through the calculation formula of soil moisture content, so that in the process of one collection, when the soil at different depths After the conversion of moisture content data is completed, the mobile phone communicates wirelessly with the central server through the hydrological protocol or water resource protocol, and sends the converted data to the central server. The central server sorts, counts, analyzes and makes decisions on the obtained data, and tests the accuracy High, stable working state, low power consumption, can well meet the needs of practical applications.

The soil moisture bluetooth data acquisition terminal provided by the utility model can cut off the power of the equipment at any time, thereby reducing the power consumption of the equipment, the standby power consumption is lower than 4uA, and the measurement accuracy of the equipment is high. When the voltage of the power supply battery drops to 6.5V, it can still The stable collection of moisture data can well meet the needs of practical applications.

The above-mentioned embodiments only express the implementation manner of the present utility model, and its description is relatively specific and detailed, but it should not be interpreted as limiting the patent scope of the present utility model. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the scope of protection of the utility model patent should be based on the appended claims.

Claims (4)

1. a soil moisture bluetooth data acquisition terminal, is characterized in that, comprises processor, communication module, acquisition module and two moisture sensors, wherein: Both the communication module and the acquisition module are connected to the processor; The two moisture sensors are connected with the collection module. 2. soil moisture bluetooth data acquisition terminal according to claim 1, is characterized in that, described soil moisture bluetooth data acquisition terminal also comprises mobile phone and central server, and described mobile phone is wireless with described communication module and described central server respectively connect. 3. soil moisture bluetooth data acquisition terminal according to claim 1, is characterized in that, described processor is single-chip microcomputer. 4. The soil moisture bluetooth data acquisition terminal according to claim 1, wherein the communication module is a BLE-4.0 module.