CN215985839U

CN215985839U - Soil environment detection device

Info

Publication number: CN215985839U
Application number: CN202122337712.0U
Authority: CN
Inventors: 倪祖旭; 王贵川; 贺根文
Original assignee: Shenzhen Yuanjian Sensor Technology Co ltd
Current assignee: Shenzhen Yuanjian Sensor Technology Co ltd
Priority date: 2021-09-24
Filing date: 2021-09-24
Publication date: 2022-03-08
Anticipated expiration: 2031-09-24

Abstract

The utility model discloses a soil environment detection device, which comprises a shell, wherein a circuit board is arranged in the shell, and a first probe, a second probe and a third probe which are electrically connected with the circuit board are arranged at the bottom of the shell in a penetrating way; the circuit board is electrically connected with a humidity sensor, a conductivity sensor and a temperature sensor; the first probe is electrically connected with the humidity sensor, the second probe is electrically connected with the conductivity sensor, and the third probe is connected with a common electrode of the circuit board; the upper end of the circuit board is electrically connected with a power signal wire; the upper end of the shell is convexly provided with a hollow cylinder communicated with the inner cavity of the shell, and the power signal wire penetrates out of the hollow cylinder. The probe is inserted into soil, so that the moisture, salinity and temperature of the soil can be detected simultaneously, and the data of each parameter of the soil environment can be output in real time, so that the operation is convenient and rapid; the power supply signal line comprises a power supply positive line, a ground line and a signal output line, namely the detection device can be powered by alternating current, and the accuracy of output signals is higher.

Description

Soil environment detection device

Technical Field

The utility model relates to the technical field of sensors, in particular to a soil environment detection device.

Background

Soil temperature, moisture, salinity are the key condition that influences crop growth, and suitable soil temperature, moisture, salinity not only can improve crop output, can avoid the wasting of resources and soil loss moreover. Therefore, real-time monitoring of soil temperature, moisture and conductivity content is necessary.

At present, the soil moisture measurement mode includes a drying and weighing method, a frequency domain reflection method, a time domain reflection method and the like. The measurement of the soil conductivity is mostly laboratory measurement, and is performed by a corresponding instrument. Laboratory measurement of soil parameters has higher precision, but the measurement process is tedious, takes long time, and has high cost and poor real-time performance.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, the utility model aims to provide a soil environment detection device which can detect the moisture, salinity and temperature of soil conveniently and timely.

The utility model is realized by the following technical measures, comprising a shell, wherein a circuit board is arranged in the shell, and a first probe, a second probe and a third probe which are electrically connected with the circuit board are arranged at the bottom of the shell in a penetrating way; the circuit board is electrically connected with a humidity sensor, a conductivity sensor and a temperature sensor; the first probe is electrically connected with the humidity sensor, the second probe is electrically connected with the conductivity sensor, and the third probe is connected with a common electrode of the circuit board; the upper end of the circuit board is electrically connected with a power signal wire; a hollow cylinder communicated with the inner cavity of the shell is convexly arranged at the upper end of the shell, and the power signal wire penetrates out of the hollow cylinder; the power supply signal line comprises a power supply positive electrode line, a ground line and a signal output line.

Preferably, an interface is integrated at the upper end of the circuit board, and a connector adapted to the interface is disposed at one end of the power signal line.

As a preferred mode, the power supply device further comprises an elastic sealing element, the elastic sealing element comprises an embedding part and a sealing part, the elastic sealing element is wrapped on the power supply signal wire, the embedding part is embedded into the hollow cylinder, and the sealing part abuts against the top of the hollow cylinder.

Preferably, the signal line is an RS485 signal output line.

Preferably, the humidity sensor and the conductivity sensor are integrated with the circuit board.

Preferably, the temperature sensor is a thermistor, and the temperature sensor is embedded in the first probe or the second probe.

According to the soil environment detection device provided by the utility model, the probe is inserted into soil, so that the moisture, salinity and temperature of the soil can be detected simultaneously, and the data of each parameter of the soil environment can be output in real time, so that the device is convenient and quick; the power supply signal line comprises a power supply positive line, a ground line and a signal output line, namely the detection device can be powered by alternating current, and the accuracy of output signals is higher.

Drawings

FIG. 1 is a schematic structural diagram of an embodiment of the present invention;

fig. 2 is an exploded view of an embodiment of the present invention.

Number and name in the figure: 1. the probe comprises a shell 11, a hollow column 2, a circuit board 21, a first probe 22, a second probe 23, a third probe 24, an interface 3, a power signal wire 31, a connector 4, a sealing piece 41, a sealing part 42 and an embedding part

Detailed Description

The present invention will be described in further detail with reference to the following examples and drawings.

A soil environment detection device, refer to fig. 1 to 2, comprising a housing 1, a circuit board 2 is arranged in the housing 1, and a first probe 21, a second probe 22 and a third probe 23 electrically connected with the circuit board 2 are arranged at the bottom of the housing 1 in a penetrating manner; the circuit board 2 is electrically connected with a humidity sensor, a conductivity sensor and a temperature sensor; the first probe 21 is electrically connected with the humidity sensor, the second probe 22 is electrically connected with the conductivity sensor, and the third probe 23 is connected with the common electrode of the circuit board 2; the upper end of the circuit board 2 is electrically connected with a power signal wire 3; a hollow cylinder 11 communicated with the inner cavity of the shell 1 is convexly arranged at the upper end of the shell 1, and the power signal wire 3 penetrates out of the hollow cylinder 11; the power signal line 3 includes a power positive line, a ground line, and a signal output line.

The shell 1 of the embodiment is in a square box shape as a whole, and the fillets at the corners of the shell are in arc transition, so that the abrasion is reduced, and the structure of the shell is not limited in other embodiments; the circuit board 2 is integrated with a signal processing circuit, and outputs the processed signals fed back by the humidity sensor, the conductivity sensor and the temperature sensor; the first probe 21, the second probe 22 and the third probe 23 are arranged side by side at intervals.

This soil environment detection device can detect soil moisture, salinity and temperature simultaneously through inserting its probe into soil, each parameter data of real-time output soil environment, convenient and fast.

It should be noted that, all the existing soil detection devices, no matter single probe or double probes, are powered by dc, and the power signal line 3 of the present embodiment includes a power positive line, a ground line and a signal output line, that is, the detection device can be powered by ac, and the accuracy of the output signal is higher.

In an embodiment, referring to fig. 2, an interface 24 is integrated on the upper end of the circuit board 2, and a connector 31 adapted to the interface 24 is disposed at one end of the power signal line 3, so that the power signal line can be plugged into and pulled out of the interface for use, and is convenient for production, assembly, sorting, packaging and transportation.

Further, referring to fig. 1 and 2, the power supply device further includes an elastic sealing member 4, the elastic sealing member 4 includes an embedded portion 42 and a sealing portion 41, the elastic sealing member 4 is wrapped around the power signal wire 3, the embedded portion 42 is embedded in the hollow cylinder 11, and the sealing portion 41 abuts against the top of the hollow cylinder 11; the sealing element 4 is sleeved on the power signal wire 3, and when the power supply device is used, the power signal wire 3 with a proper length can be selected according to actual requirements and assembled by a user; the embedding part 42 of the sealing element 4 is spherical or hemispherical, the sealing part 41 is disc-shaped, the inner wall of the hollow column body 11 is provided with a groove with a matched shape, the embedding part 42 of the sealing element 4 is embedded into the hollow column body 11 and is abutted against the groove to realize sealing and limiting, and meanwhile, the sealing part 41 covers the end part of the hollow column body 11 to be tightly attached, so that the sealing effect is further enhanced; the structure is convenient to use and assemble.

In one embodiment, the signal output line is an RS485 signal line.

In an embodiment, the humidity sensor and the conductivity sensor are integrated in the circuit board 2, the third probe 23 being located between the first probe 21 and the second probe 22; the first probe 21, the third probe 23 and the humidity sensor jointly detect the soil humidity, and the second probe 22, the third probe 23 and the conductivity sensor detect the soil salinity; the circuit board 2 also integrates a radio frequency resonance circuit.

Furthermore, the temperature sensor is a thermistor, and the temperature sensor is embedded in the first probe 21 or the second probe 22, so that the soil temperature can be accurately sensed.

The soil environment detecting device of the present invention has been described above for the purpose of facilitating understanding of the present invention, but the embodiments of the present invention are not limited to the above-described examples, and any changes, modifications, substitutions, combinations, and simplifications which do not depart from the spirit of the present invention should be construed as being equivalent replacements within the scope of the present invention.

Claims

1. The soil environment detection device is characterized by comprising a shell, wherein a circuit board is arranged in the shell, and a first probe, a second probe and a third probe which are electrically connected with the circuit board are arranged at the bottom of the shell in a penetrating manner; the circuit board is electrically connected with a humidity sensor, a conductivity sensor and a temperature sensor; the first probe is electrically connected with the humidity sensor, the second probe is electrically connected with the conductivity sensor, and the third probe is connected with a common electrode of the circuit board; the upper end of the circuit board is electrically connected with a power signal wire; a hollow cylinder communicated with the inner cavity of the shell is convexly arranged at the upper end of the shell, and the power signal wire penetrates out of the hollow cylinder; the power supply signal line comprises a power supply positive electrode line, a ground line and a signal output line.

2. The soil environment detecting device as claimed in claim 1, wherein an interface is integrated with the upper end of the circuit board, and a connector adapted to the interface is provided at one end of the power signal line.

3. The soil environment detecting device as claimed in claim 2, further comprising an elastic sealing member, wherein the elastic sealing member comprises an embedding portion and a sealing portion, the elastic sealing member is wrapped around the power signal wire, the embedding portion is embedded in the hollow cylinder, and the sealing portion abuts against the top of the hollow cylinder.

4. A soil environment sensing device as claimed in claim 1, wherein said signal line is an RS485 signal output line.

5. A soil environment sensing device as claimed in claim 1, wherein said humidity sensor and said conductivity sensor are integrated with said circuit board.

6. A soil environment sensing device as claimed in claim 5, wherein said temperature sensor is a thermistor, said temperature sensor being embedded in said first probe or said second probe.