CN202994783U - Single-chip based soil humidity detection system - Google Patents
Single-chip based soil humidity detection system Download PDFInfo
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- CN202994783U CN202994783U CN 201220632920 CN201220632920U CN202994783U CN 202994783 U CN202994783 U CN 202994783U CN 201220632920 CN201220632920 CN 201220632920 CN 201220632920 U CN201220632920 U CN 201220632920U CN 202994783 U CN202994783 U CN 202994783U
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- soil moisture
- chip microcomputer
- chip
- soil
- detection system
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Abstract
The utility model discloses a single-chip based soil humidity detection system. The single-chip based soil humidity detection system comprises a humidity sensor which is inserted into the soil to detect the soil humidity, an amplification circuit connected to the humidity sensor and used for amplifying an output signal from the humidity sensor, a single-chip connected to the amplification circuit, and a battery power supply used for supplying power to each electrical unit in the system, wherein a keyboard is connected to the input end of the single-chip; a display screen used for displaying moisture content of the soil and an outer memory used for storing the moisture content of the soil are connected to the output end of the single-chip; the display screen comprises a first display row used for displaying the moisture content of the soil and a second display row used for displaying electric quantity of the battery; the single-chip is connected to and communicated with an upper computer which is used for drawing a test curve or a picture after further treatment is carried out for the moisture content of the soil through a communication interface circuit; the upper computer is provided with a display and a printing machine in a connecting manner; and the single-chip adopts PIC16C74. The single-chip based soil humidity detection system has a simple circuit and excellent performances.
Description
Technical field
The utility model relates to a kind of dust humidity detection system, particularly relates to a kind of SCM Based soil moisture detection system.
Background technology
Along with the continuous progress of socioeconomic development and science and technology, many fields all need in time to measure humidity and the soil moisture content of surrounding environment, as on agricultural in order scientifically soil to be managed, need the water cut of frequent testing soil; In hydraulic engineering, as also needing frequent testing soil water cut on hydrometric station, dykes and dams; In addition, soil humidity measuring indispensable measure the item especially in environmental protection, meteorology, national defense construction designs a kind of dust humidity detection system particularly important for this reason.
The utility model content
The purpose of this utility model is to overcome above-mentioned deficiency of the prior art, and a kind of SCM Based soil moisture detection system is provided.This SCM Based soil moisture detection system circuit is simple, function admirable.
for achieving the above object, the technical solution adopted in the utility model is: a kind of SCM Based soil moisture detection system, it is characterized in that: comprise the humidity sensor that inserts in soil for detection of soil moisture, join with humidity sensor and be used for the humidity sensor output signal is amplified the amplifying circuit of processing and the single-chip microcomputer that joins with amplifying circuit and is the battery supply of each power unit power supply of system, the input end of described single-chip microcomputer is connected to keyboard, the output terminal of described single-chip microcomputer is connected to for the display screen that shows soil moisture content and is used for storing the external storage of soil moisture content, described display screen comprises for the display line one that shows soil moisture content with for the display line two that shows the battery supply electric weight, described single-chip microcomputer by communication interface circuit be used for that described soil moisture content is done the host computer of drawing test curve or chart after further processing and join and communicate, described host computer is connected to for the display that shows test curve or chart with for the printer of printing described test curve or chart, described single-chip microcomputer adopts chip PIC16C74.
Above-mentioned a kind of SCM Based soil moisture detection system is characterized in that: the input end of described single-chip microcomputer also is connected to and is used to single-chip microcomputer that the clock circuit of reference time is provided.
Above-mentioned a kind of SCM Based soil moisture detection system, it is characterized in that: the input end of described single-chip microcomputer also is connected to be used to the reset circuit that makes system reset.
Above-mentioned a kind of SCM Based soil moisture detection system is characterized in that: described communication interface circuit is the RS232 interface circuit.
The utility model compared with prior art has the following advantages:
1, circuit is simple, and function admirable is easy to carry: the utility model is selected the PIC16C74 single-chip microcomputer, and is low in energy consumption, only can work long hours with powered battery, and peripheral components is few, has very strong function, function admirable.
2, extensibility: the utility model only needs more emat sensor and change control software, just can expand in the Test Application of other environmental parameters, makes it all can use in many fields such as agricultural, Hydrology, environmental protection, meteorologies.
Below by drawings and Examples, the technical solution of the utility model is described in further detail.
Description of drawings
Fig. 1 is schematic block circuit diagram of the present utility model.
Description of reference numerals:
1-humidity sensor; 2-amplifying circuit; 3-battery supply;
4-external storage; 5-communication interface circuit; 6-host computer;
7-display; 8-printer; 9-display screen;
10-single-chip microcomputer; 11-clock circuit; 12-reset circuit;
13-keyboard.
Embodiment
a kind of SCM Based soil moisture detection system as shown in Figure 1, comprise the humidity sensor 1 that inserts in soil for detection of soil moisture, join with humidity sensor 1 and be used for humidity sensor 1 output signal is amplified the amplifying circuit 2 of processing and the single-chip microcomputer 10 that joins with amplifying circuit 2 and is the battery supply 3 of each power unit power supply of system, the input end of described single-chip microcomputer 10 is connected to keyboard 13, the output terminal of described single-chip microcomputer 10 is connected to for the display screen 9 that shows soil moisture content and is used for storing the external storage 4 of soil moisture content, described display screen 9 comprises for the display line one that shows soil moisture content with for the display line two that shows the battery supply electric weight, described single-chip microcomputer 10 by communication interface circuit 5 be used for that described soil moisture content is done the host computer 6 of drawing test curve or chart after further processing and join and communicate, described host computer 6 is connected to for the display 7 that shows test curve or chart with for the printer 8 of printing described test curve or chart, described single-chip microcomputer 10 adopts chip PIC16C74.
In the present embodiment, preferred way is that the input end of described single-chip microcomputer 10 also is connected to and is used to single-chip microcomputer 10 that the clock circuit 11 of reference time is provided.The input end of described single-chip microcomputer 10 also is connected to be used to the reset circuit 12 that makes system reset.Described communication interface circuit 5 is the RS232 interface circuit.
the course of work of the present utility model is: turn on the power switch, check battery electric quantity, if display screen 9 shows the normal operation of " H " illustrative system, if show that " L " need change battery, after determining system's normal operation, by after keyboard 13 input tests batch, directly insert humidity sensor 1 in soil to be measured, this moment, display screen 9 meetings showed test voltage and water cut in real time, the data meeting autostore of test is in External memory equipment, in order to transmitting and calling, if needing that all data of this batch are sent into host computer 6 is further processed, system is connected connection with host computer with the data line of RS232 standard interface, operation keyboard deposits data in host computer 6, then draw test curve, chart, and analyze, show, print and file.
The above; it is only preferred embodiment of the present utility model; be not that the utility model is imposed any restrictions; every according to the utility model technical spirit to any simple modification, change and equivalent structure transformation that above embodiment does, all still belong in the protection domain of technical solutions of the utility model.
Claims (4)
1. SCM Based soil moisture detection system, it is characterized in that: comprise the humidity sensor (1) that inserts in soil for detection of soil moisture, join with humidity sensor (1) and be used for humidity sensor (1) output signal is amplified the amplifying circuit (2) of processing and the single-chip microcomputer (10) that joins with amplifying circuit (2) and is the battery supply (3) of each power unit power supply of system, the input end of described single-chip microcomputer (10) is connected to keyboard (13), the output terminal of described single-chip microcomputer (10) is connected to for the display screen (9) that shows soil moisture content and is used for storing the external storage (4) of soil moisture content, described display screen (9) comprises for the display line one that shows soil moisture content with for the display line two that shows the battery supply electric weight, described single-chip microcomputer (10) by communication interface circuit (5) be used for that described soil moisture content is done the host computer (6) of drawing test curve or chart after further processing and join and communicate, described host computer (6) is connected to for the display (7) that shows test curve or chart with for the printer (8) of printing described test curve or chart, described single-chip microcomputer (10) adopts chip PIC16C74.
2. a kind of SCM Based soil moisture detection system according to claim 1, it is characterized in that: the input end of described single-chip microcomputer (10) also is connected to and is used to single-chip microcomputer (10) that the clock circuit (11) of reference time is provided.
3. a kind of SCM Based soil moisture detection system according to claim 1, it is characterized in that: the input end of described single-chip microcomputer (10) also is connected to be used to the reset circuit that makes system reset (12).
4. a kind of SCM Based soil moisture detection system according to claim 1, it is characterized in that: described communication interface circuit (5) is the RS232 interface circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220632920 CN202994783U (en) | 2012-11-26 | 2012-11-26 | Single-chip based soil humidity detection system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220632920 CN202994783U (en) | 2012-11-26 | 2012-11-26 | Single-chip based soil humidity detection system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202994783U true CN202994783U (en) | 2013-06-12 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220632920 Expired - Fee Related CN202994783U (en) | 2012-11-26 | 2012-11-26 | Single-chip based soil humidity detection system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202994783U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104950097A (en) * | 2015-06-24 | 2015-09-30 | 中南林业科技大学 | Multi-functional soil analysis system |
| CN106841565A (en) * | 2016-12-19 | 2017-06-13 | 青岛海研电子有限公司 | Soil comprehensive parameters testing equipment |
-
2012
- 2012-11-26 CN CN 201220632920 patent/CN202994783U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104950097A (en) * | 2015-06-24 | 2015-09-30 | 中南林业科技大学 | Multi-functional soil analysis system |
| CN106841565A (en) * | 2016-12-19 | 2017-06-13 | 青岛海研电子有限公司 | Soil comprehensive parameters testing equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130612 Termination date: 20131126 |