CN203643445U - Quick farmland soil moisture measuring instrument - Google Patents
Quick farmland soil moisture measuring instrument Download PDFInfo
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- CN203643445U CN203643445U CN201420016079.2U CN201420016079U CN203643445U CN 203643445 U CN203643445 U CN 203643445U CN 201420016079 U CN201420016079 U CN 201420016079U CN 203643445 U CN203643445 U CN 203643445U
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- soil moisture
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Abstract
The utility model relates to a quick farmland soil moisture measuring instrument comprising a TDR soil moisture sensor used for detecting soil moisture data and outputting 0-2.5V analog voltage, a shaping amplifier used for amplifying and shaping the 0-2.5V analog voltage and outputting 0-5V standard voltage, an A/D (analog/digital) converter used for converting 0-5V standard voltage to a digital signal, an average value filter used for carrying out filtering and noise reduction treatment on the digital signal output by the A/D converter, a voltage-moisture converter used for converting the digital signal after filtering and noise reduction treatment to a binary system, a display driver used for converting a binary soil moisture value to a decimal number and a liquid crystal display screen used for displaying the soil moisture value. Compared with the prior art, the quick farmland soil moisture measuring instrument is simple in structure, small in volume, light in weight, low in cost, simple and easy to operate, convenient to carry, low in power consumption, fast in response speed, high in precision and the like. By utilizing the quick farmland soil moisture measuring instrument, wireless transmission of data can be realized to realize remote monitoring.
Description
Technical field
The utility model belongs to monitoring soil moisture device, relates to a kind of Soil Water instrument for quick measuring, is particularly widely used in small-sized, quick, the portable farmland soil water measuring instrument in agricultural, water conservancy, ECOLOGICAL ENVIRONMENTAL MONITORING field.
Background technology
Soil moisture is one of important parameter of reflection farm environment, and measuring Soil Water parameter is the important step of scientific management farmland planting.
At present, the measuring method of soil moisture has: oven drying method, NEUTRON METHOD, TDR method (time domain reflectometry) and remote sensing method.Wherein oven drying method is a kind of classical, reliable method, but it can not realize real-time detection, can destroy soil texture simultaneously.The equipment price costliness of NEUTRON METHOD, up to nearly 100,000 yuan/platform.Remote sensing method is applicable to monitoring on a large scale.TDR method (time domain reflectometry) is popular in the world, has good measurement effect, and the existing Product Precision of existing market is high, powerful, but shortcoming is that system complex, volume are large, price, use inconvenience, is suitable for professional person.
Utility model content
The purpose of this utility model be to overcome the deficiency of prior art and provide a kind of simple in structure, be convenient for carrying, the Soil Water instrument for quick measuring that cheap, simple to operate, precision is higher, this measuring instrument can be measured fast the moisture data in soil and show.
The utility model is to adopt following proposal to realize:
A kind of Soil Water instrument for quick measuring, comprising:
TDR soil moisture sensor, is used for detecting soil moisture data, output 0-2.5V analog voltage signal;
Shaping amplifier, is used for 0-2.5V analog voltage to amplify shaping, output 0-5V standard voltage signal;
A/D converter, is used for converting 0-5V standard voltage signal to digital signal;
Averaging filter, is used for the digital signal of A/D converter output to carry out filtering and noise reduction processing;
Voltage-moisture route marker, is used for digital signal after treatment filtering and noise reduction to be converted to binary Soil moisture;
Display driver, is used for being converted into decimal number from binary Soil moisture of voltage-moisture route marker output;
LCDs, is used for showing the decimal system Soil moisture from display driver output;
TDR soil moisture sensor, shaping amplifier, A/D converter, voltage-moisture route marker, display driver are connected successively with LCDs.
Described Soil Water instrument for quick measuring also comprises the wireless launcher for binary Soil moisture wireless transmission of described voltage-moisture route marker output is gone out; Wireless launcher is connected with the output terminal of voltage-moisture route marker.Wireless launcher is used for real-time report monitoring soil moisture data at a distance.
Soil Water instrument for quick measuring also comprises anti-jamming circuit, to improve the precision of measuring instrument.Anti-jamming circuit is prior art.
For easy to operate, on the body of Soil Water measuring instrument, be provided with " measurement ", " transmitting ", " demonstration ", " ON/OFF " four function keys, realize respectively this four kinds of functions.
Measure when realizing field without commercial power supply, this Soil Water measuring instrument is also included as described Soil Water measuring instrument provides the solar cell of working power.
Soil Water instrument for quick measuring is encapsulated by square organic glass box, and instrument length, width and height size is respectively 11cm, 9cm and 3.8cm, weight 200g.
Beneficial effect
The utility model can Quick Acquisition farmland soil moisture content, compared with existing equipment, have simple in structure, volume is little, lightweight, cost is low, it is simple and easy to operate, be easy to carry, it is low in energy consumption that (average power is 800mW only, operating voltage is only 7V～12V), fast response time (≤1S), the advantages such as precision high (measuring accuracy >=95%), but also can realize the wireless transmission of data, realize remote monitoring.
Brief description of the drawings
Fig. 1 is structured flowchart of the present utility model.
Embodiment
Below in conjunction with drawings and Examples, the utility model is described in further detail:
Referring to accompanying drawing 1, a kind of Soil Water instrument for quick measuring, comprises TDR soil moisture sensor, shaping amplifier, A/D converter, averaging filter, voltage-moisture route marker, display driver, LCDs, wireless launcher, anti-jamming circuit, button and solar cell.Described TDR soil moisture sensor output 0-2.5V analog voltage is delivered to shaping amplifier, 0-2.5V analog voltage is amplified shaping by shaping amplifier, the normal voltage of output 0-5V, deliver to A/D converter, A/D converter converts analog voltage to digital signal, deliver to averaging filter, digital signal is carried out filtering and noise reduction processing by averaging filter, deliver to voltage-moisture route marker, numerical information after treatment filtering and noise reduction is converted to binary Soil moisture by voltage-moisture route marker, deliver to display driver, binary Soil moisture is converted to decimal number by display driver, delivering to LCDs shows, wireless launcher can be gone out the scale-of-two Soil moisture wireless transmission of voltage-moisture route marker output, anti-jamming circuit can improve the precision of measuring instrument, button can be used to control survey instrument, and this is provided with " measurement ", " transmitting ", " demonstration ", " ON/OFF " four function keys, realizes respectively this four kinds of functions, when can ensureing measuring instrument without civil power, solar cell can normally work.
Voltage-moisture route marker adopts multiplier to realize; Display driver adopts logical circuit or integrated chip to realize; Shaping amplifier, A/D converter, averaging filter, voltage-moisture route marker and display driver are prior art, are ripe hardware module.
Claims (5)
1. a Soil Water instrument for quick measuring, is characterized in that, comprises TDR soil moisture sensor, voltage shaping amplifier, A/D converter, treatment circuit and LCDs;
Described treatment circuit comprises averaging filter, voltage-moisture route marker and display driver;
Described TDR soil moisture sensor, voltage shaping amplifier, A/D converter, voltage-moisture route marker, display driver are connected successively with LCDs.
2. Soil Water instrument for quick measuring according to claim 1, is characterized in that, also comprises the wireless launcher being connected with the output terminal of voltage-moisture route marker.
3. Soil Water instrument for quick measuring according to claim 1 and 2, is characterized in that, also comprises the anti-jamming circuit being connected with treatment circuit.
4. Soil Water instrument for quick measuring according to claim 3, is characterized in that, also comprises the solar cell being connected with treatment circuit.
5. Soil Water instrument for quick measuring according to claim 4, is characterized in that, also comprises the button group being connected with treatment circuit, and described button group comprises " measurement ", " transmitting ", " demonstration " and " ON/OFF " four buttons.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420016079.2U CN203643445U (en) | 2014-01-10 | 2014-01-10 | Quick farmland soil moisture measuring instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420016079.2U CN203643445U (en) | 2014-01-10 | 2014-01-10 | Quick farmland soil moisture measuring instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203643445U true CN203643445U (en) | 2014-06-11 |
Family
ID=50874680
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420016079.2U Expired - Fee Related CN203643445U (en) | 2014-01-10 | 2014-01-10 | Quick farmland soil moisture measuring instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203643445U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116576907A (en) * | 2023-03-31 | 2023-08-11 | 中电科国海信通科技(海南)有限公司 | MCU chip for agricultural soil moisture content monitoring and data analysis method |
-
2014
- 2014-01-10 CN CN201420016079.2U patent/CN203643445U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116576907A (en) * | 2023-03-31 | 2023-08-11 | 中电科国海信通科技(海南)有限公司 | MCU chip for agricultural soil moisture content monitoring and data analysis method |
| CN116576907B (en) * | 2023-03-31 | 2024-06-11 | 中电科国海信通科技(海南)有限公司 | MCU chip for agricultural soil moisture content monitoring and data analysis method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140611 Termination date: 20150110 |
|
| EXPY | Termination of patent right or utility model |