CN1873713A - Remote control type collector for data of temperature and humidity of soil - Google Patents
Remote control type collector for data of temperature and humidity of soil Download PDFInfo
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- CN1873713A CN1873713A CN 200610013794 CN200610013794A CN1873713A CN 1873713 A CN1873713 A CN 1873713A CN 200610013794 CN200610013794 CN 200610013794 CN 200610013794 A CN200610013794 A CN 200610013794A CN 1873713 A CN1873713 A CN 1873713A
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Abstract
The invention discloses a remote- controlled soil temperature and humidity data collector, comprising: measurement control host machine, power supply system and external temperature and humidity sensors, where there are system control MCU, and A/D converter and wireless transmission module connected with MCU circuit board, arranged in the casing of the measurement control host machine, and the casing of the measurement control host machine is equipped with sensor interface and charge interface; the temperature sensor is composed of stainless steel pipe packed probe and handgrip connected with the probe, where the inner front end of the probe is provided with machine core. And it has advantages: small bulk, lightweight, high collecting speed, convenient to be used for long time and in fixed positions in the field, etc.
Description
Technical field
The present invention relates to a kind of data acquisition unit, relate in particular to a kind of data acquisition unit that can gather, handle temperature, the humidity information of soil.
Background technology
In agricultural production, usually need carry out measuring in real time fast to soil temperature, humidity at some specific weathers and time period, perhaps the soil regime of crop in a certain growth period is continued dynamic monitoring, simultaneously, in data acquisition, also need to save the expense of artificial work.Therefore, be starved of a kind of simple installation, simple to operate, picking rate fast, can unattended surveying instrument.
Prior art is the moisture with earth boring auger oven drying method measured soil, the gatherer process of its data is: utilize earth boring auger to squeeze into the below ground certain depth, take out the soil sample that needs measurement, again soil sample is put into the aluminium box of known quality, utilize oven for drying after taking back the laboratory, then according to the mass water content of the unit of calculating of poor quality soil before and after the oven dry.This method needs long experimental period to obtain data, often can not in time react the real time status of soil moisture.In addition, in the actual monitoring of soil property index,, reduce damage, require the soil property index of obtaining simultaneously as much as possible in one-shot measurement because of fetching earth plant growth being caused in order to protect soil layer.So, develop a kind of volume little, in light weight, can obtain a plurality of indexs simultaneously and calculating, video data and collector with certain storage capacity just become a necessary thing fast.
Yet also there is blank in China at the manufacture view of soil temperature, humidity collector, at present the applied collector that mostly is external import.These collectors are the cost height not only, and also needs according to the soil types of China each department its parameter and model to be proofreaied and correct when reality is used.Though the domestic development that has also begun the homogeneous data collector, the instrument of developing can only carry out the collection of data at certain character of soil, as single humidity collector or Temperature sampler.Though use these collectors to shorten the time of artificial collection, and improved the accuracy of image data to a certain extent, but can not be in one-shot measurement the soil property index of obtaining simultaneously as much as possible, and be not suitable in the particular studies zone, carrying out measurement long-time, fixed point, as every characteristic index of research crop soil in a growth period etc.
On the other hand, when implementing accurately to irrigate, in order to obtain the dynamic change situation of soil water content in the crop growth period, often need be in one long period, whenever the certain time interval of being separated by is measured soil moisture data, finishes until experimental period.If adopt the mode of artificial execute-in-place sensor to carry out data acquisition, then need to drop into lot of manpower and material resources, and be subjected to the restriction of factors such as weather, time.Therefore, more be necessary to develop and obtain soil data and timed sending according to automatic start sensor of the time interval that configures, and possess the distance type soil data collecting instrument of certain memory function.
Summary of the invention
Problem to be solved by this invention is to overcome the deficiencies in the prior art, provide a kind of and not only can measure in real time temperature, the humidity situation of soil simultaneously, and be adapted at carrying out in the particular studies zone distance type soil temperature, humidity data collector long-time, that the fixed point flush type is measured.
Distance type soil temperature of the present invention, humidity data collector comprise and measure main control system, electric power system and external temperature sensor and humidity sensor; Be provided with the single-chip microcomputer of being responsible for system's control in the shell of described measurement main control system and be connected to analog to digital converter and wireless transport module on the described single chip circuit plate, the shell of described measurement main control system is provided with sensor interface and charging inlet, described analog to digital converter is connected with humidity sensor with described temperature sensor by described sensor interface, and described charging inlet connects power supply.
Described measurement main control system is responsible for Signal Processing, and host chip adopts 51 series A T89C51 single-chip microcomputers; Described analog to digital converter adopts the ADC0809 chip, is responsible for the collection of data and analog signal conversion is become digital signal; Described wireless data transmission adopts Siemens TC35 chip, is responsible for the transmission of data, and measurement data is transferred in the appointed equipment; Described electric power system is the 7AH lead-acid accumulator.
Described temperature sensor comprises stainless steel tubular type enclosed probe and the handle that is connected described probe by screw thread mouth with hold-down nut, and the front end of described probe interior is provided with movement, and described movement connects the extension line of described handle rear end by lead.
Described movement adopts high-precision semiconductor temperature sensor chip DS18B20;
The measurement range of described temperature sensor is 85 ℃～-55 ℃;
The measuring accuracy of described temperature sensor is ± 0.5 ℃ between 85 ℃～-10 ℃.
The invention has the beneficial effects as follows: volume is little, and is in light weight, is difficult for wearing out, and simple to operate, cheap, picking rate is fast, can measure in real time soil temperature, humidity simultaneously; The setting of described wireless transport module, this collector is controlled by circuit, start working according to automatic work of the time interval that configures or by the instruction start sensor, and the uniform data that collects sent on computer or other designated equipments, be convenient in time grasp dynamic changes such as soil moisture content and temperature regime, and be convenient to open-air long-term, fixed point use.
Description of drawings
Fig. 1 is a housing face-plate synoptic diagram of measuring main control system among the present invention;
Fig. 2 is the principle of compositionality figure that measures main control system among the present invention;
Fig. 3 is the structural representation of temperature sensor among the present invention;
Fig. 4 is the circuit diagram of part of data acquisition among the present invention;
Fig. 5 is the circuit diagram of system power supply module among the present invention;
Fig. 6 is the circuit diagram of data communication module among the present invention;
Fig. 7 is a workflow diagram of the present invention.
Embodiment
Below in conjunction with drawings and embodiments the present invention is done to specifically describe.
Distance type soil temperature of the present invention, humidity data collector comprise and measure main control system and electric power system that described measurement main control system connects external temperature sensor and humidity sensor by sensor interface.
Fig. 1 shows the situation that is provided with of measuring the housing face-plate of main control system described in the present invention.As seen from the figure, described housing face-plate is provided with charging socket 1, humidity sensor socket 2, temperature sensor socket 3, power light 4 and power switch 5.
Show the principle of compositionality of measuring main control system described in the present invention as 2.As seen from the figure, described measurement main control system comprises that setting is responsible for the single-chip microcomputer of system's control in the enclosure and is connected to analog to digital converter and wireless transport module on the described single chip circuit plate, described shell is provided with sensor interface and charging inlet, described analog to digital converter connects external temperature sensor and humidity sensor respectively by sensor interface, and described charging inlet connects the power supply that is provided with in the enclosure.
Described measurement main control system is responsible for Signal Processing, and its host chip adopts the AT89C51 single-chip microcomputer of 51 series; Described analog to digital converter adopts the ADC0809 chip, is responsible for the collection of data and analog signal conversion is become digital signal; Described wireless data transfer module is made of Siemens's TC35 data transmission module, is responsible for the transmission of data, and measurement data is transferred in the appointed equipment; Described electric power system is the common lead acid accumulator of 7AH.
Humidity sensor among the present invention has been quoted existing equipment, and temperature sensor then is the autonomous Design development.
The structure of described temperature sensor as shown in Figure 3, it comprises stainless steel tubular type enclosed probe 13 and the handle 16 that is connected described probe 13 by screw thread mouth 14 with hold-down nut 15, the front end of described probe 13 inside is provided with movement 11, and described movement 11 connects the extension line 17 of described handle 16 rear ends by lead 12.Described temperature sensor is connected with the measurement main control system by the interface 3 on the panel shown in Figure 1, be responsible for the collection and the measurement of temperature, its movement is a high-precision semiconductor DS18B20 chip, and measurement range is-55 ℃～85 ℃, and the measuring accuracy in-10 ℃～85 ℃ scopes is ± 0.5 ℃.Because described probe 13 is encapsulated by stainless-steel tube, so can be deep into deep subsoil carries out temperature survey, the movement 11 of its probe 13 inside is a DS18B20 high-precision semiconductor temperature sensing chip, can measure the temperature variation of 85 ℃～-55 ℃ of scopes, measuring accuracy is ± 0.5 ℃ in 85 ℃～10 ℃ scopes.
Fig. 4 shows the circuit design of part of data acquisition, comprises single chip computer AT 89C51, analog to digital converter ADC0809, internal memory and port extended chip 8155H, reference circuits LM336 and digital trigger chip 74LS74 among the figure.Among the figure: the FPDP of ADC0809 links to each other with the input port of AT89C51; The address port of ADC0809 links to each other with 8155, carries out the selection of port; The control port of ADC0809 links to each other with the p2 mouth of AT89C51, carries out signals collecting control; The ADC0809 clock port links to each other with 74ls74, and the clock signal of ADC0809 is provided; The data acquisition end of ADC0809 links to each other with the input signal of humidity sensor; The reference voltage of ADC0809 is provided by the LM336 reference circuits; AT89C51 links to each other with 8155.
Fig. 5 shows the circuit design of power module, and it comprises voltage three-terminal voltage-stabilizing 7805 chips, and its major function is to provide burning voltage for system.
Fig. 6 is the circuit design that data communication module, and it comprises serial port communication chip MAX232 chip, and its major function is and the PC communication.
Distance type soil temperature of the present invention, humidity data collector have also connected a note cat TC35 by the external mode of serial ports, can be used to carry out the operations such as unlatching of short message receiving-transmitting and control instrument under the control of system software.
In this system, 8155H has two effects, and the one, the port of expansion AT 89C51 system, the 2nd, the RAM of expansion AT 89C51 system (can expand 250 bytes to); The effect of LM336 circuit is the reference voltage that 2.5V is provided for ADC0809; The MAX232 chip is used for system and computing machine or other RS232 interfacing equipment communications, and links to each other with AT89C51; AT89C51 is mainly used in the control of total system; ADC0809 is responsible for the collection of data, and analog signal conversion is become digital signal; 74LS74 provides the work pulse for ADC0809.
In actual applications, the present invention by humidity sensor socket 2 and temperature sensor socket 3 external soil humidity sensors and soil moisture sensor on the panel shown in Figure 1 after, can gather temperature, the humidity parameter of soil simultaneously.Its workflow as shown in Figure 7, its course of work is: by automatic triggering collection instrument of the pre-set time interval, perhaps by sending enabled instruction triggering collection instrument---instrument makes zero or initialization---temperature, humidity sensor is gathered the soil data simultaneously---and single-chip microcomputer analysis computing that Acquisition Instrument receives the data of each sensor successively---is digital signal with analog signal conversion by analog to digital converter---and the analog signal conversion that their are exported are digital signal, and then are converted to the reading of the soil moisture and water cut---by wireless network data are sent to designated equipment.
Distance type soil temperature of the present invention, humidity data collector have been taken into account the comprehensive principle of comparing of economy, durability and usability when design.The each several part selection of components is as follows:
Described single-chip microcomputer has been selected the AT89C51 monolithic of 51 series; Analog to digital converter has been selected ADC0808 or ADC0809 chip, though the acquisition precision of this chip is 8, (reference power supply has adopted LM3362.5V reference power supply chip to the voltage setting by reference voltage end.See Fig. 4), can select measurement range, but and the output of combined sensor regulate the effect play 16 chip acquisition precisions.
Shell of the present invention adopts metallic aluminium to make, and this shell is not only firmer than plastic casing, and is difficult for getting rusty, and possesses anti-low temperature, characteristic such as anti-aging.
Sensor probe among the present invention adopts the stainless pin tube designs, its fundamental purpose, and the one, make in the easier insertion soil of probe, the 2nd, aging the getting rusty that can prevent to pop one's head in influences the precision of image data.
Display element among the present invention is selected light emitting diode for use, is difficult for the defective that observation shows numerical value when the stronger field work of light to overcome other display materials such as liquid crystal.
The present invention adopts accumulator to solve powerup issue, so that away from the field work of power supply.Described accumulator employing capacity is the common lead acid accumulator of 7AH, and can charge by the charging socket on the panel.
The present invention on the basis of using soil moisture sensor and soil humidity sensor, has carried out the improvement of following several respects in order to solve the problem that the soil real time status can not be in time reacted in present agricultural land soil data acquisition
The first, adopt 51 lower series A T89C51 of cost as host chip, realize Data Receiving, calculating, translation function by efficient integrated circuit (IC) design;
Second, the socket that connects temperature sensor and humidity sensor is set, so that the soil moisture and humidity data can be gathered, be calculated, transmit to this instrument simultaneously, reached and once gathered the purpose of obtaining two indexs, and be digital signal with the analog signal conversion that collects simultaneously, and then be converted to the data of the soil moisture and humidity, and sensor interface of the present invention also has extended function, can connect universal sensor according to actual needs;
The 3rd, adopt the wireless data transmission mode, trigger sensor by instruction or timer and start and image data, and the data that collect are sent to designated equipment, reach the purpose of remote metering;
The 4th, adopt metallic aluminium to make shell, utilize it to be better than the soundness of general plastic casing and be difficult for getting rusty, anti-low temperature, characteristic such as anti-aging, prolong serviceable life of this instrument.
In sum, the invention has the advantages that:
1. measured soil temperature, humidity in real time, be convenient in time grasp soil moisture content, temperature regime and dynamic change thereof, can be used for agrotechnical research and to the real-time control of soil temperature, humidity in the agricultural production, also can be used for some to the environment adjusting of harsh crops of soil temperature, humidity requirement, and other are to soil temperature, the demanding occasion of humidity information real-time.
2. the employing wireless data transfer module is realized remote metering, and unified the reception saved human resources.
3. adopt the separate type design of temperature, humidity sensor and collector host, be easy to carry and remove and install fast.
4. adopt the power supply mode of accumulator, be convenient to this instrument, and battery can charge by the socket on the host panel, removed from and opened the trouble that cabinet is changed battery, be convenient to long-time continuous and use in local operation away from power supply.
Abovely with reference to the drawings and specific embodiments technical scheme of the present invention is schematically described, this description does not have restricted, and each is shown in the drawings also to be one of embodiment of the present utility model.If other those of ordinary skill of this area are enlightened by it, under the situation that does not break away from the invention aim, make of the various conspicuous modification of this instrument at aspects such as formation and detail setting thereof, all should belong to protection scope of the present invention.
Claims (8)
1. a distance type soil temperature, humidity data collector comprise and measure main control system and electric power system, it is characterized in that it also comprises external temperature sensor and humidity sensor; Be provided with the single-chip microcomputer of being responsible for system's control in the shell of described measurement main control system and be connected to analog to digital converter and wireless transport module on the described single chip circuit plate, the shell of described measurement main control system is provided with sensor interface and charging inlet, described analog to digital converter passes through described sensor interface and is connected described temperature sensor and humidity sensor, and described charging inlet connects power supply.
2. distance type soil temperature according to claim 1, humidity data collector is characterized in that: described single-chip microcomputer adopts the AT89C51 monolithic.
3. distance type soil temperature according to claim 1, humidity data collector is characterized in that: described analog to digital converter adopts the ADC0808 chip.
4. distance type soil temperature according to claim 1, humidity data collector is characterized in that: described wireless data transmission adopts Siemens TC35 chip.
5. distance type soil temperature according to claim 1, humidity data collector, it is characterized in that: described temperature sensor, the handle that is connected with described probe by stainless steel tubular type enclosed probe, by screw thread mouth and hold-down nut, the movement that is arranged on described probe Inner Front End constitute, and described movement connects the extension line of described handle rear end by lead.
6. distance type soil temperature according to claim 1, humidity data collector is characterized in that: described movement adopts high-precision semiconductor temperature sensor chip DS18B20.
7. distance type soil temperature according to claim 1, humidity data collector is characterized in that: the measurement range of described temperature sensor is 85 ℃～-55 ℃.
8. distance type soil temperature according to claim 1, humidity data collector is characterized in that: the measuring accuracy of described temperature sensor is ± 0.5 ℃ between 85 ℃～-10 ℃.
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| Application Number | Priority Date | Filing Date | Title |
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| CN 200610013794 CN1873713A (en) | 2006-05-19 | 2006-05-19 | Remote control type collector for data of temperature and humidity of soil |
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| CN 200610013794 CN1873713A (en) | 2006-05-19 | 2006-05-19 | Remote control type collector for data of temperature and humidity of soil |
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| CN1873713A true CN1873713A (en) | 2006-12-06 |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100573612C (en) * | 2008-03-15 | 2009-12-23 | 中国科学院合肥物质科学研究院 | The sensor node that is used for railway frozen earth roadbed safety monitoring |
| CN101949739A (en) * | 2010-08-24 | 2011-01-19 | 甘肃农业大学 | Device for installing soil temperature sensor |
| CN101236188B (en) * | 2007-01-31 | 2011-04-13 | 北京林业大学 | Soil moisture wireless measuring apparatus |
| CN102236958A (en) * | 2010-04-23 | 2011-11-09 | 河南农业大学 | Detector for automatic monitoring and wireless transmission of water content of large-range soil |
| CN101726368B (en) * | 2008-10-21 | 2012-06-20 | 环旭电子股份有限公司 | Ambient temperature sensing device used for mainboard |
| CN102854215A (en) * | 2012-08-31 | 2013-01-02 | 中国建筑科学研究院 | Soil thermophysical property parameter measuring device and measuring method |
| CN103196587A (en) * | 2013-03-15 | 2013-07-10 | 成都中远信电子科技有限公司 | Soil temperature data acquisition system based on WiFi |
| CN109379030A (en) * | 2018-11-15 | 2019-02-22 | 河北工业大学 | A kind of solar energy tracking power generator of lighting angle automatic adjusument |
-
2006
- 2006-05-19 CN CN 200610013794 patent/CN1873713A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101236188B (en) * | 2007-01-31 | 2011-04-13 | 北京林业大学 | Soil moisture wireless measuring apparatus |
| CN100573612C (en) * | 2008-03-15 | 2009-12-23 | 中国科学院合肥物质科学研究院 | The sensor node that is used for railway frozen earth roadbed safety monitoring |
| CN101726368B (en) * | 2008-10-21 | 2012-06-20 | 环旭电子股份有限公司 | Ambient temperature sensing device used for mainboard |
| CN102236958A (en) * | 2010-04-23 | 2011-11-09 | 河南农业大学 | Detector for automatic monitoring and wireless transmission of water content of large-range soil |
| CN102236958B (en) * | 2010-04-23 | 2013-05-01 | 河南农业大学 | Detector for automatic monitoring and wireless transmission of water content of large-range soil |
| CN101949739A (en) * | 2010-08-24 | 2011-01-19 | 甘肃农业大学 | Device for installing soil temperature sensor |
| CN102854215A (en) * | 2012-08-31 | 2013-01-02 | 中国建筑科学研究院 | Soil thermophysical property parameter measuring device and measuring method |
| CN103196587A (en) * | 2013-03-15 | 2013-07-10 | 成都中远信电子科技有限公司 | Soil temperature data acquisition system based on WiFi |
| CN109379030A (en) * | 2018-11-15 | 2019-02-22 | 河北工业大学 | A kind of solar energy tracking power generator of lighting angle automatic adjusument |
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