CN217688921U - Soil nutrient multi-parameter detector - Google Patents

Abstract

The utility model discloses a soil nutrient multi-parameter detector, include: the soil multi-element sensor, the RS485 to TTL module, the GPS big dipper double-positioning module, the NB-IOT module, the SD card storage module, the Bluetooth module, the data acquisition display module and the power module. The utility model discloses can carry out quick high accuracy to seven soil information of moisture in the soil, temperature, nitrogen, phosphorus, potassium, conductivity, pH value and detect to can record with the time the detection place, have easy operation, it is convenient to carry, and the consumption is little, characteristics that stability is high, thereby facilitate and guarantee for the agricultural production management.

Description

Soil nutrient multi-parameter detector

Technical Field

The utility model relates to a soil detection equipment field especially relates to a soil nutrient multi-parameter detector.

Background

Soil is the foundation on which human beings rely for survival and sustainable development, and the fertility condition of soil plays a crucial role in the growth of crops in agricultural production. The fertilizer is an important agricultural production data, provides nutrient elements for the growth and development of crops, and ensures the high quality and the high yield of the crops. In a traditional agricultural fertilization mode, the same plots are always subjected to consistent fertilization amount, so that the plots with low soil nutrients are insufficient in fertilization amount, the plots with no need of fertilization or plots with high soil nutrients are excessively fertilized and have low return rate, and the like, so that the consequences of crop yield reduction, fertilizer utilization rate reduction, underground water source pollution, farmland soil acid-base imbalance and the like are caused, and serious problems such as resource waste, environmental pollution and the like are caused. Therefore, the reasonable application of the fertilizer and the improvement of the utilization rate of the fertilizer have important practical significance, and the quick and accurate acquisition of the soil environment quality information is an important premise and basis for soil resource investigation and evaluation.

The conventional laboratory detection method for soil nutrient multi-parameter has the defects of complex pretreatment, long analysis period, high test cost and the like. It is important to find a fast analysis method which is convenient, safe and reliable, and to accurately acquire various attribute information and quality conditions of soil in time. The existing soil multi-parameter rapid detection equipment is single in function, low in integration level, high in cost, not beneficial to carrying, single in data transmission mode and low in stability, and cannot realize integration of data acquisition, positioning and storage.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a solve traditional measuring instrument not enough, provide one kind and can accomplish the quick nondestructive test's of soil basic parameter soil nutrient multi-parameter detector to can carry out quick high accuracy to seven soil information of moisture in the soil, temperature, nitrogen, phosphorus, potassium, conductivity, pH value and detect, and can carry out the record to the detection place with the time, thereby realize easy operation, it is convenient to carry, the purpose of function pluralism.

In order to achieve the above object, the utility model adopts the following technical scheme:

the utility model relates to a soil nutrient multi-parameter detector's characteristics include: the device comprises a soil multi-element sensor, an RS 485-to-TTL module, a GPS (global positioning system) big dipper double-positioning module, an NB-IOT (base band-operator interface) module, a Bluetooth module, an SD (secure digital) card storage module, a data acquisition and display module and a rechargeable lithium battery power supply module;

the data acquisition display module comprises: MCU, display module; three data transmission mode keys and a detection key;

the pin A and the pin B of the soil multi-element sensor are respectively connected with the pin A and the pin B of the RS485 to TTL module and are used for converting soil foundation information parameters of RS485 level signals output by the soil multi-element sensor into soil foundation information parameters of TTL level signals;

the TXD pin and the RXD pin of the RS485 to TTL module are respectively connected with the PA10 pin and the PA9 pin of the MCU and are used for transmitting the soil foundation information parameters;

a TXD pin and an RXD pin of the GPS big Dipper double-positioning module are respectively connected with a PA3 pin and a PA2 pin of the MCU and are used for sending the position coordinates and the time information of the detection points to the MCU;

a TXD pin and an RXD pin of the NB-IOT module are respectively connected with a PB11 pin and a PB10 pin of the MCU and are used for sending the soil foundation information parameters, the position coordinates of the detection points and the time information to a cloud platform;

a TXD pin and a RXD pin of the Bluetooth module are respectively connected with a PC11 pin and a PC10 pin of the MCU and are used for sending the soil foundation information parameters, the position coordinates of the detection points and the time information to a mobile phone;

a TXD pin and an RXD pin of the SD card storage module are respectively connected with a PD2 pin and a PC12 pin of the MCU and are used for storing the soil foundation information parameters, the position coordinates of the detection points and the time information;

and the display module is connected with the MCU and is used for displaying real-time, the soil foundation information parameters and the position coordinates of the detection points.

Three pins of the three data transmission mode keys are respectively connected with a PC7 pin, a PC8 pin and a PC9 pin of the MCU and used for selecting a data transmission mode;

and the pin of the detection key is connected with the PB9 pin of the MCU and used for starting a detection function.

The multi-parameter detector for soil nutrients is also characterized in that the display module is an LCD screen driven by an SPI protocol;

and an SCL pin, an SDA pin, an RES pin, a DC pin, a CS pin and a BLK pin of the LCD screen are respectively connected with a PG13 pin, a PD5 pin, a PD4 pin, a PD15 pin, a PD1 pin and a PE8 pin of the MCU.

Compared with the prior art, the beneficial effects of the utility model reside in that:

1. the utility model discloses an NB-IOT module, bluetooth module, SD card storage module have realized the arbitrary selection of three kinds of data transmission modes, upload the cloud platform with data through the basic station network, and the soil data that detect and check point position coordinate and check time can carry out visual show through cell-phone APP and webpage end to can inquire historical data; when the base station signal in the remote area is weak, the Bluetooth module can be selected to transmit data to the mobile phone of the agricultural technician, so that the soil data, the detection position and the detection time are checked and transmitted through the mobile phone; if the reasons of power consumption, unsmooth wireless communication and the like are considered, data can be transmitted to the SD card to be stored locally, and the three data transmission modes not only meet the use requirements in different scenes, but also improve the stability of data transmission of the detector.

2. The utility model discloses the detector chooses MCU for use as main control chip and is equipped with two orientation module modules of GPS big dipper, also notes the position and the check time of check point when detecting soil data, and the totality volume is less, has satisfied the required portability of detector. And the detection of the soil information is quick and accurate, is not influenced by environmental factors, does not damage the original shape of the soil and has extremely high precision.

3. The utility model is simple in operation, it is convenient to carry, and the consumption is little, and stability is high, provides multiple data transmission mode, and the applied place is wide, can facilitate and ensure for the agricultural production management.

Drawings

Fig. 1 is an external view of the present invention;

FIG. 2 is a hardware schematic diagram of the present invention;

description of the drawings: 1 a soil multi-element sensor; 2, a data transmission mode key; 3, detecting a key; 4SD card memory module; 5LCD screen.

Detailed Description

In the embodiment, the multi-parameter detector for soil nutrients can be used for rapidly and accurately detecting seven soil basic information including moisture, temperature, nitrogen, phosphorus, potassium, conductivity and PH value in soil, and can be used for recording the longitude and latitude of a detection place and the detection time. Considering the principle of power consumption and stability, the utility model has three transmission modes in the aspect of data transmission, and respectively uses the NB-IOT module to transmit the collected data to the cloud platform through the base station network; the collected data is sent to the mobile phone by using the Bluetooth module; and storing the acquired data to the SD card by using the SD card storage module. The three modes can be selected according to different requirements and use scenes. Specifically, as shown in fig. 2, the detecting apparatus includes: the device comprises a soil multi-element sensor 1, an RS 485-to-TTL module, a GPS Beidou double-positioning module, an NB-IOT module, a Bluetooth module, an SD card storage module 4, a data acquisition and display module and a rechargeable lithium battery power supply module;

the data acquisition display module includes: the device comprises an MCU, a display module, three data transmission mode keys 2 and a detection key 3;

and the pin A and the pin B of the soil multi-element sensor 1 are respectively connected with the pin A and the pin B of the RS 485-to-TTL module and are used for converting the soil foundation information parameter output by the soil multi-element sensor 1 and converted from the RS485 level into the soil foundation information parameter of the TTL level.

TXD and RXD pins of the RS 485-to-TTL module are respectively connected with a PA10 pin and a PA9 pin of the MCU and are used for transmitting soil basic information parameters; a modbus communication protocol is used between the soil multi-element sensor and the MCU, the MCU sends an inquiry frame to the sensor, and the sensor returns a corresponding response frame to the MCU for analysis and processing to obtain soil basic information parameters;

a TXD pin and an RXD pin of the GPS big Dipper double-positioning module are respectively connected with a PA3 pin and a PA2 pin of the MCU, and the position coordinates and the time information of the collected detection points are transmitted to the MCU by adopting a SkyTrap communication protocol;

a TXD pin and an RXD pin of the NB-IOT module are respectively connected with a PB11 pin and a PB10 pin of the MCU and are used for sending the soil basic information parameters, the position coordinates of the detection points and the time information to the cloud platform;

a TXD pin and an RXD pin of the Bluetooth module are respectively connected with a PC11 pin and a PC10 pin of the MCU and are used for sending the soil foundation information parameters, the position coordinates of the detection points and the time information to the mobile phone;

a TXD pin and an RXD pin of the SD card storage module 4 are respectively connected with a PD2 pin and a PC12 pin of the MCU and are used for storing soil foundation information parameters, position coordinates of detection points and time information;

the display module is an LCD screen 5 driven by an SPI protocol; and an SCL pin, an SDA pin, an RES pin, a DC pin, a CS pin and a BLK pin of the display module are respectively connected with a PG13 pin, a PD5 pin, a PD4 pin, a PD15 pin, a PD1 pin and a PE8 pin of the MCU and are used for displaying real-time, soil foundation information parameters and position coordinates of detection points.

Three pins of the three data transmission mode keys 2 are respectively connected with a PC7 pin, a PC8 pin and a PC9 pin of the MCU and used for selecting a data transmission mode;

and the pin of the detection key 3 is connected with the PB9 pin of the MCU and used for starting a detection function.

In specific implementation, as shown in fig. 1, the using process of the detector is as follows:

the detector is held by an agricultural worker in the left hand, the soil multi-element sensor 1 is held by the right hand, the appropriate data transmission mode selection key 2 is selected according to different requirements and scenes, then the soil multi-element sensor 1 is inserted into the soil, the detection key 3 is pressed down, the detected soil data, the detection point position and the detection time can be transmitted through the selected transmission mode, and the whole operation process is simple, convenient and fast.

When the detection key is pressed, five groups of data are collected, then the MCU performs data processing and calculates the average value of the five groups of data, and finally the average value is transmitted according to the selected transmission mode and displayed on the LCD display module 5;

for example: when the NB transmission mode is selected, the MCU activates the NB-IOT module to enable the NB-IOT module to be connected with a cloud platform, seven soil basic information data, detection point coordinates and detection time are stored in a cloud platform database in real time, and the detected soil data, the detection point and the detection time can be browsed and inquired through a mobile phone APP and a webpage end.

When selecting bluetooth transmission mode, at first match cell-phone and bluetooth module, after the matching succeeds, the data of gathering and detection position coordinate and detection time just can be through cell-phone APP save and visual show to can carry out batch sending.

When the SD card transmission mode is selected, the acquired soil data, the longitude and latitude of the acquisition place and the acquisition time are stored in an SD data storage card of the machine.

The three transmission modes can be selected randomly according to the use requirements and the scene, and after one mode is selected, the other two modes are in a dormant state, so that the power consumption is reduced to the minimum.

In conclusion, the detector has multiple data transmission modes, can be selected according to different scenes and use requirements, is simple to operate and is convenient to carry.

Claims (2)

1. A soil nutrient multi-parameter detector is characterized by comprising: the device comprises a soil multi-element sensor (1), an RS 485-to-TTL module, a GPS (global positioning system) Beidou double-positioning module, an NB-IOT module, a Bluetooth module, an SD (secure digital) card storage module (4), a data acquisition and display module and a rechargeable lithium battery power supply module;

the data acquisition display module comprises: MCU, display module; three data transmission mode keys (2) and a detection key (3);

the pin A and the pin B of the soil multi-element sensor (1) are respectively connected with the pin A and the pin B of the RS 485-to-TTL module and are used for converting soil foundation information parameters of RS485 level signals output by the soil multi-element sensor (1) into soil foundation information parameters of TTL level signals;

TXD and RXD pins of the RS 485-to-TTL module are respectively connected with a PA10 pin and a PA9 pin of the MCU and are used for transmitting the soil foundation information parameters;

a TXD pin and a RXD pin of the GPS big Dipper double-positioning module are respectively connected with a PA3 pin and a PA2 pin of the MCU and are used for sending position coordinates and time information of detection points to the MCU;

a TXD pin and an RXD pin of the NB-IOT module are respectively connected with a PB11 pin and a PB10 pin of the MCU and are used for sending the soil foundation information parameters, the position coordinates of the detection points and the time information to a cloud platform;

a TXD pin and a RXD pin of the Bluetooth module are respectively connected with a PC11 pin and a PC10 pin of the MCU and are used for sending the soil foundation information parameters, the position coordinates of the detection points and the time information to a mobile phone;

a TXD pin and an RXD pin of the SD card storage module (4) are respectively connected with a PD2 pin and a PC12 pin of the MCU and are used for storing the soil foundation information parameters, the position coordinates of the detection points and the time information;

the display module is connected with the MCU and used for displaying real-time, the soil foundation information parameters and the position coordinates of the detection points;

three pins of the three data transmission mode keys (2) are respectively connected with a PC7 pin, a PC8 pin and a PC9 pin of the MCU and used for selecting a data transmission mode;

and a pin of the detection key (3) is connected with a PB9 pin of the MCU and used for starting a detection function.

2. The soil nutrient multiparameter detector of claim 1, wherein the display module is an LCD screen (5) driven by SPI protocol;

and an SCL pin, an SDA pin, an RES pin, a DC pin, a CS pin and a BLK pin of the LCD screen (5) are respectively connected with a PG13 pin, a PD5 pin, a PD4 pin, a PD15 pin, a PD1 pin and a PE8 pin of the MCU.

Images