CN201680860U - Multi-channel agricultural measuring device based on MCU - Google Patents
Multi-channel agricultural measuring device based on MCU Download PDFInfo
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- CN201680860U CN201680860U CN2010202069507U CN201020206950U CN201680860U CN 201680860 U CN201680860 U CN 201680860U CN 2010202069507 U CN2010202069507 U CN 2010202069507U CN 201020206950 U CN201020206950 U CN 201020206950U CN 201680860 U CN201680860 U CN 201680860U
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Abstract
A multi-channel agricultural measuring device based on an MCU is provided with a controller, a temperature and humidity sensor group, a first sensor group, a second sensor group and a liquid crystal display module. The temperature and humidity sensor group is connected with an input end of the controller and used for providing ground temperature and humidity, atmosphere temperature and humidity and leaf layer temperature and humidity information for the controller, the first sensor group is connected with an input end of the controller and used for providing carbon dioxide density, soil temperature, soil water content and lighting information for the controller, the second sensor group is connected with the input end of the controller and used for providing canopy temperature and canopy wind speed for the controller, and the liquid crystal display module is connected with the output end of the controller and used for displaying information received by the controller. Various information of ground temperature and humidity and the like is acquired into a single chip microcomputer through sensors, and the information is displayed by a single chip microcomputer program to form a complete agricultural subsystem, thereby the multi-channel agricultural measuring device integrates convenience, accuracy, fine safety and the like together, and the multi-channel agricultural measuring device has the advantages of high information degree, low cost, easy popularization and convenience in use.
Description
Technical field
The utility model relates to a kind of farmland measurement mechanism, particularly a kind ofly will make things convenient for, accurately, multi-channel agricultural measuring device that performance is integrated in one such as security is good based on MCU.
Background technology
Modern agriculture strides forward to the precision direction.Precision agriculture is by new and high technology supports such as modern information technologies, biotechnology, engineer equipment technology, spatial variability according to the farmland, regularly, quantitatively implementing modernization farming operative technique and farmland management system, be realize the agricultural production low consumption, efficiently, the important channel of high-quality, safety, environmental protection.Modern information technologies are supported the foundation and the application of 6 subsystems such as field information acquisition system, farmland remote sense monitoring system, farmland geospatial information system, agriculture specialist system, agricultural machinery and implement intellectualizing system, farm environment monitoring system thus.The integrated application of these subsystems can be accomplished accurate plantation, precisely sampling, the precisely envirment factor quantity of analyzing influence crop normal growth, and then precisely definite factor input amount, obtains the maximization of crop benefit.Also above-mentioned some system can be installed on the different agricultural machinery and implement, can write down the crop yield of unit area during work automatically, the precise information of soil moisture, nutrient, dosage (concentration) etc.
Certainly the foundation of above-described 6 subsystems be applied in also fewer that modern agricultural technology uses, be in the early stage of development, the foundation of 6 subsystems such as the field information acquisition system of China, farmland remote sense monitoring system, farmland geospatial information system, agriculture specialist system, agricultural machinery and implement intellectualizing system, farm environment monitoring system and application mainly are to depend on import, cost an arm and a leg, inconvenient maintenance is difficult in the industrialized agriculture and promotes the use of.
And, at the bottom of the traditional agriculture measurement mechanism detection efficiency, can only single some amounts be detected; When the data acquisition mistake, must influence measuring accuracy.
Summary of the invention
Technical problem to be solved in the utility model is, provide a kind of level of informatization height, with low cost, be easy to promote the multi-channel agricultural measuring device based on MCU easy to use.
The technical scheme that the utility model adopted is: a kind of multi-channel agricultural measuring device based on MCU, have controller, also including links to each other with the input end of controller is used for providing to controller the Temperature Humidity Sensor group of face of land humiture, big temperature and moisture and leaf layer humiture information; Link to each other with the input end of controller be used for to controller provide that dense carbon dioxide crosses, the first sensor group of the soil moisture, soil moisture content and illumination information; Link to each other with the input end of controller and to be used for providing second sensor groups of canopy surface temperature and canopy wind speed to controller; And the LCD MODULE that shows of the information that is used for that controller is received of linking to each other with the output terminal of controller.
Described Temperature Humidity Sensor group includes first to the 8th totally 8 leaf layer Temperature Humidity Sensors, all is to link to each other with controller by the multi-channel analog selector switch.
Described first sensor group includes first carbon dioxide sensor, second carbon dioxide sensor, soil moisture sensor, soil moisture sensor and optical sensor, and described first sensor group is to link to each other with controller by A/D converter.
Described second sensor groups includes canopy surface temperature sensor and canopy air velocity transducer.
Also be provided with on the described controller and select and the affirmation switch.
Also be provided with the interface of writing a program on the described controller.
Also be provided with the RS485 communication interface on the described controller.
Multi-channel agricultural measuring device based on MCU of the present utility model, be that face of land humiture, big temperature and moisture, the information such as leaf layer humiture, canopy surface temperature, canopy wind speed, CO2 concentration, the soil moisture, soil moisture content that go up are shown its information by Single Chip Microcomputer (SCM) program in single-chip microcomputer by sensor acquisition, constitute a complete agriculture subsystem, thereby performances such as this multi-channel agricultural measuring device handle is convenient, accurate, security is good are integrated in one.Have level of informatization height, with low cost, be easy to promote characteristics easy to use.
Description of drawings
Fig. 1 is an entire block diagram of the present utility model;
Fig. 2 is the circuit theory diagrams of the utility model controller;
Fig. 3 is the circuit theory diagrams of the utility model Temperature Humidity Sensor group;
Fig. 4 is the circuit theory diagrams of the utility model first sensor group and second sensor groups;
Fig. 5 is the formation synoptic diagram that switch was selected and confirmed to the utility model;
Fig. 6 is a clock circuit of the present utility model;
Fig. 7 is an A/D change-over circuit schematic diagram of the present utility model;
Fig. 8 is the schematic diagram of multi-channel analog selected on-off circuit of the present utility model;
Fig. 9 is the schematic diagram of RS485 communication interface circuit of the present utility model;
Figure 10 is the circuit theory diagrams of AD reference voltage of the present utility model;
Figure 11 is the interface of LCD MODULE of the present utility model;
Figure 12 is the interface of writing a program of the present utility model.
Wherein:
1: controller 2:A/D converter
3: multi-channel analog selector switch 4: the Temperature Humidity Sensor group
5: 6: the second sensor groups of first sensor group
7: LCD MODULE 8: select and the affirmation switch
9: the interface 10:RS485 communication interface of writing a program
Embodiment
Provide specific embodiment below in conjunction with accompanying drawing, further specify the multi-channel agricultural measuring device based on MCU of the present utility model and how to realize.
Multi-channel agricultural measuring device based on MCU of the present utility model, face of land humiture, big temperature and moisture, the information such as leaf layer humiture, canopy surface temperature, canopy wind speed, CO2 concentration, the soil moisture, soil moisture content that go up are shown its information by Single Chip Microcomputer (SCM) program in single-chip microcomputer by sensor acquisition, constitute a complete agriculture subsystem.
As shown in Figure 1, multi-channel agricultural measuring device based on MCU of the present utility model, have controller 1, also including links to each other with the input end of controller 1 is used for providing to controller 1 the Temperature Humidity Sensor group 4 of face of land humiture, big temperature and moisture and leaf layer humiture information; Link to each other with the input end of controller 1 be used for to controller 1 provide that dense carbon dioxide crosses, the first sensor group 5 of the soil moisture, soil moisture content and illumination information; Link to each other with the input end of controller 1 and to be used for providing second sensor groups 6 of canopy surface temperature and canopy wind speed to controller 1; And link to each other with the output terminal of controller 1 and to be used for LCD MODULE 7 that the information that controller 1 is received is shown.Described LCD MODULE 7 is selected C series Chinese fonts lcd module for use, finally comes out with Chinese liquid crystal display through after the acquisition process.
As described in Figure 2, controller 1 of the present utility model adopts single-chip microprocessor MCU, and selecting model for use is the single-chip microcomputer of ATmega128.
Also be provided with on the described controller 1 and select and affirmation switch 8.
Also be provided with the interface 9 of writing a program on the described controller 1.
Also be provided with RS485 communication interface 10 on the described controller 1.
Also be provided with spare interface SD on the described controller 1.
As shown in Figure 3, Temperature Humidity Sensor group 4 described in the utility model includes first to the 8th totally 8 leaf layer Temperature Humidity Sensors 41～48, selects the SHT11 Temperature Humidity Sensor for use, and precision ± 3% (RH) is placed on the leaf layer of crop top, middle part and bottom.Described leaf layer Temperature Humidity Sensor all is to link to each other with controller 1 by multi-channel analog selector switch 3.
As shown in Figure 4, described first sensor group 5 includes first carbon dioxide sensor 51, second carbon dioxide sensor 52, soil moisture sensor 53, soil moisture sensor 54 and optical sensor 55, and described first sensor group 5 is to link to each other with controller 1 by A/D converter 2.
Wherein, described first carbon dioxide sensor 51 and second carbon dioxide sensor 52 are selected the NDIR sensor assembly for use, are placed in crop middle part branches and leaves than many places.Described soil moisture sensor 53 is selected the Pt100 platinum resistance temperature sensor for use, is placed in crop root.Described soil moisture sensor 54 selects for use the TDR Soil Moisture Sensor to be placed in crop root.Described optical sensor 55 is selected the silicon blue streak volt detector that low light intensity is also had higher sensitivity for use, light radiation intensity (0-200000Lux) is transformed to the standard signal of 0-5V or 4-20mA.Be placed in the crop top.
Described second sensor groups 6 includes canopy surface temperature sensor 61 and canopy air velocity transducer 62.Wherein, described canopy surface temperature sensor 61 is selected digital infrared temperature-test sensor for use, is placed in the crop top.Described canopy air velocity transducer 62 is selected the M288865 wind speed wind direction sensor for use, is placed in the crop top.
Be the formation synoptic diagram of selecting and confirm switch 8 as shown in Figure 5, include left and right, upper and lower and confirm five switches.
Fig. 7 is an A/D change-over circuit schematic diagram of the present utility model, and described first carbon dioxide sensor 51, second carbon dioxide sensor 52, soil moisture sensor 53, soil moisture sensor 54 and optical sensor 55 all are to be to enter the controller 1 that is made of single-chip microprocessor MCU after the digital signal by this A/D change-over circuit with analog signal conversion.
Fig. 8 is the schematic diagram of multi-channel analog selected on-off circuit of the present utility model, and described leaf layer Temperature Humidity Sensor 41～48 (SHT11-1-SHT11-8) all is selectively to enter the controller 1 that is made of single-chip microprocessor MCU by this multi-channel analog selected on-off circuit.
From the above mentioned, the multi-channel agricultural measuring device based on MCU of the present utility model can improve sampling precision in use and avoid maloperation.
Claims (7)
1. multi-channel agricultural measuring device based on MCU, has controller (1), it is characterized in that also including links to each other with the input end of controller (1) is used for providing to controller (1) the Temperature Humidity Sensor group (4) of face of land humiture, big temperature and moisture and leaf layer humiture information; Link to each other with the input end of controller (1) be used for to controller (1) provide that dense carbon dioxide crosses, the first sensor group (5) of the soil moisture, soil moisture content and illumination information; Link to each other with the input end of controller (1) and to be used for providing second sensor groups (6) of canopy surface temperature and canopy wind speed to controller (1); And link to each other with the output terminal of controller (1) and to be used for LCD MODULE (7) that the information that controller (1) is received is shown.
2. the multi-channel agricultural measuring device based on MCU according to claim 1, it is characterized in that, described Temperature Humidity Sensor group (4) includes first to the 8th totally 8 leaf layer Temperature Humidity Sensors (41～48), all is to link to each other with controller (1) by multi-channel analog selector switch (3).
3. the multi-channel agricultural measuring device based on MCU according to claim 1, it is characterized in that, described first sensor group (5) includes first carbon dioxide sensor (51), second carbon dioxide sensor (52), soil moisture sensor (53), soil moisture sensor (54) and optical sensor (55), and described first sensor group (5) is to link to each other with controller (1) by A/D converter (2).
4. the multi-channel agricultural measuring device based on MCU according to claim 1 is characterized in that, described second sensor groups (6) includes canopy surface temperature sensor (61) and canopy air velocity transducer (62).
5. the multi-channel agricultural measuring device based on MCU according to claim 1 is characterized in that, also is provided with on the described controller (1) to select and affirmation switch (8).
6. the multi-channel agricultural measuring device based on MCU according to claim 1 is characterized in that, also is provided with the interface of writing a program (9) on the described controller (1).
7. the multi-channel agricultural measuring device based on MCU according to claim 1 is characterized in that, also is provided with RS485 communication interface (10) on the described controller (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202069507U CN201680860U (en) | 2010-05-28 | 2010-05-28 | Multi-channel agricultural measuring device based on MCU |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202069507U CN201680860U (en) | 2010-05-28 | 2010-05-28 | Multi-channel agricultural measuring device based on MCU |
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| CN201680860U true CN201680860U (en) | 2010-12-22 |
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| CN2010202069507U Expired - Fee Related CN201680860U (en) | 2010-05-28 | 2010-05-28 | Multi-channel agricultural measuring device based on MCU |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101858759A (en) * | 2010-05-28 | 2010-10-13 | 天津工程师范学院 | Multi-channel agricultural measuring device based on MCU |
| CN103699511A (en) * | 2013-12-30 | 2014-04-02 | 武汉光谷电气有限公司 | Interface device for serially writing programs in multiple MCUs (micro control units) |
| CN103852105A (en) * | 2012-12-04 | 2014-06-11 | 昆山平成电子科技有限公司 | Multi-functional tester |
-
2010
- 2010-05-28 CN CN2010202069507U patent/CN201680860U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101858759A (en) * | 2010-05-28 | 2010-10-13 | 天津工程师范学院 | Multi-channel agricultural measuring device based on MCU |
| CN103852105A (en) * | 2012-12-04 | 2014-06-11 | 昆山平成电子科技有限公司 | Multi-functional tester |
| CN103699511A (en) * | 2013-12-30 | 2014-04-02 | 武汉光谷电气有限公司 | Interface device for serially writing programs in multiple MCUs (micro control units) |
| CN103699511B (en) * | 2013-12-30 | 2017-05-17 | 武汉光谷电气有限公司 | Interface device for serially writing programs in multiple MCUs (micro control units) |
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| Date | Code | Title | Description |
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| 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: 20101222 Termination date: 20110528 |