CN204881703U - Many parameter measurement of agricultural appearance - Google Patents
Many parameter measurement of agricultural appearance Download PDFInfo
- Publication number
- CN204881703U CN204881703U CN201520664209.8U CN201520664209U CN204881703U CN 204881703 U CN204881703 U CN 204881703U CN 201520664209 U CN201520664209 U CN 201520664209U CN 204881703 U CN204881703 U CN 204881703U
- Authority
- CN
- China
- Prior art keywords
- sensing
- circuit
- carbon dioxide
- agricultural
- ammonia
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
Abstract
The utility model relates to a many parameter measurement of agricultural appearance, including measuring apparatu host computer and four kinds of sensor measurements sensing probes, be provided with LCD screen, illumination sensing input, carbon dioxide sensing input, hydrogen sulfide sensing input, ammonia sensing input, 33 keyboards and USB port on the measuring apparatu host computer, the microprocessor chip has in the measuring apparatu to and light sensing amplifier circuit, carbon dioxide sensing amplifier circuit, hydrogen sulfide sensing interface circuit, ammonia sensing interface circuit, drive circuit and display circuit. This measuring apparatu adopts all kinds of sensors and the high performance microprocessor chip of using always in the agricultural, can realize carrying out functions such as accurate measurement and demonstration to the multiple parameter among the agricultural environment, is suitable for the measurement and the teaching experiment of courses such as planting, agronomy, physics.
Description
Technical field
The utility model relates to a kind of agriculture multi-parameter measurer, belongs to the field of application of electronic technology and experimental applications.
Background technology
In the agricultural production in modern times, sensor technology is widely used, sensor is device or the device that can experience specified measuring range and convert usable output signal according to certain rule to, sensor is as the important devices of obtaining information, and the effect in whole information agriculture is produced is particularly important.Modern agricultural production is by adopting various kinds of sensors, obtain the various parameter informations in agriculture production environment, thus grasp and guarantee that control temperature, humidity, illumination, ventilation, sprinkling irrigation etc. have come agricultural production, ensure crops good, the growing environment that is suitable for.
At present, in current modern agricultural development, from the nursery of crops, growth, results until the link such as storage, and the storage of agricultural product, fresh-keeping, processing, the in addition link such as cultivation, breeding of livestock and poultry, sensor technology all has a wide range of applications.The sensor that modern installations agricultural is commonly used comprises conventional aerial temperature and humidity sensor, for detecting soil temperature sensor, the soil water content sensor of soil, for the intensity of illumination sensor that crop growth environment light detects, for the CO that booth air ambient detects
2content level sensor, for the NH of poultry house environment measuring
3content level sensor, H
2s content level sensor etc.
The utility model adopts optical sensor, CO practical in agricultural production
2sensor, NH
3sensor, H
2these four kinds of sensors of sensor gather illuminance, carbon dioxide, ammonia and sulfuretted hydrogen signal, amplify and conditioning through signal, and in conjunction with microprocessor, the signal each sensor being sent into microprocessor gathers and calculates, finally driving is presented on liquid crystal display, simultaneously this measuring instrument also has USB port, for carrying out the exchange of data with the USB interface equipment such as computer, realizes measuring instrument can transmit data function directly to USB device.
Utility model content
For the deficiency of existing measurement and experimental apparatus, the agriculture multi-parameter measurer of the utility model design, adopts sensor practical in various agricultural, and in conjunction with microprocessor and liquid crystal display, can complete measurement and the display of multiple sensing.Be suitable for measurement and the education experiment of the courses such as plantation, agronomy, physics.
Agricultural multi-parameter measurer comprises measuring instrument main frame and four kinds of sensor measurement sensing probes, measuring instrument main frame is provided with liquid crystal display, illumination sense input, carbon dioxide sensing input end, sulfuretted hydrogen sense input, ammonia sense input, 3*3 keyboard and USB port; In measuring instrument, there is microprocessor chip, and light sense amp circuit, carbon dioxide sensing amplifying circuit, sulfuretted hydrogen Sensing interface circuit, ammonia Sensing interface circuit, driving circuit and display circuit, for the collection of settling signal, computing and display.
Four kinds of sensor measurement probes of this measuring instrument are connected with microprocessor respectively by respective amplifying circuit or interface circuit; Its microprocessor, driving circuit, display circuit are connected successively.
The microprocessor that this measuring instrument adopts is the MSP430F479 that TI company produces.It is the microprocessor of a super low-power consumption, it is based on real orthogonal 16 RISCCPU kernels, having 16 can 16 bit register of monocycle full addressing, 3 different clock signals, 6 kinds of mode of operations, power consumption electric current is very little, and can be placed in battery saving mode, wake up in the mode of interrupting, reduce power consumption as much as possible.MSP430F479 have in powerful operational performance, sheet include sophisticated hardware multiplier, there is the RAM of FLASH, 2KB of 60KB, the conventional resource such as A/D converter, precision comparator of 16.The debugging of completion system coding is got final product, development environment convenience and high-efficiency by the JTAG debugging interface in sheet.
The illumination sense input of this measuring instrument, carbon dioxide sensing input end, sulfuretted hydrogen sense input, ammonia sense input all adopt multicore aviation socket.
The liquid crystal display circuit of this measuring instrument adopts low-voltage, low-power consumption band Chinese word library, adopts 128 × 64 LCDs of ST7920 controller.It has 4/8 bit parallel, 2 lines or 3 line serial multiple interfaces modes, and its module interface mode is flexible, and operational order is simple, convenient, can show the Chinese character of 8 × 4 row 16 × 16 dot matrix, also can complete figure display, can form complete Chinese man-machine interaction graphical interfaces.
Accompanying drawing explanation
Fig. 1 is measuring instrument outside drawing, and wherein 1 is liquid crystal display, and 2 is illumination sense input, and 3 is carbon dioxide sensing input ends, and 4 is sulfuretted hydrogen sense input, and 5 is ammonia sense input, and 6 is 3*3 keyboards, and 7 is USB port.
Fig. 2 is circuit system schematic diagram.
Fig. 3 is carbon dioxide sensing amplification circuit diagram.
Embodiment
By reference to the accompanying drawings, work and the circuit conditions of agriculture multi-parameter measurer is illustrated below.
The utility model adopts silicon light sensing 2DU6 as optical sensor part, and silicon light sensing utilizes light volta effect that light is directly transformed into the device of electric energy, and it has the PN junction of larger area, when light is radiated on PN junction, occurs electromotive force at the two ends of knot.And the new normal component OP777 that the opto-electronic conversion of illumination sensing and amplifying circuit select analog device ADI company to release, it is single precision operational-amplifier, have the advantages that real single supply, Micro Energy Lose and full power supply export, it also has the feature of extremely low offset voltage, low drifting and low noise simultaneously.
Carbon dioxide sensor of the present utility model adopts MG811, MG811 sensor to CO
2there is good sensitivity and selectivity, and it is less by the variable effect of humiture, but this sensor internal resistance is very little, if the easy voltage distortion of ADC model calling that is direct and MSP430, therefore the isolated amplifier of a high impedance is added between, the amplifier CA3140 of high input impedance is adopted to amplify as isolator in the application, the magnitude of voltage equal proportion of sensor is amplified in 250-330mV, and the output terminal pin of CA3140 is connected with the ADC converter of MSP430F479 after RC high-pass filtering.
Ammonia gas sensor of the present utility model adopts MQ135 gas sensor, hydrogen sulfide sensor adopts MQ136 gas sensor, MQ135 and MQ136 belongs to surface type semiconductor gas sensor, they are all solid electrolyte type gas sensor, they all have good sensitivity and the simple feature of driving circuit, and only the simple dividing potential drop interface circuit of need just can by Signal transmissions to microprocessor.
3*3 keyboard of the present utility model includes menu key, removes button, returns button, determines button, time button, function button, backlight key and two selection keys.Be respectively used to the selection of parameter in menu, the selection of sensing display, the confirmation of writing time, the functions such as the backlight of liquid crystal display.
USB port of the present utility model adopts the CH375B chip of Qin Heng company, CH375B supports USB-HOST interface at full speed, compatible USB2.0 agreement, only need simple peripheral component, support 12Mb/s USB device at full speed, support the controls transfer of USB device, bulk transfer and interrupt transfer, automatically connection and the disconnection of USB device can be detected, support 5V supply voltage and 3.3V supply voltage, CH375B chip also supports low-power consumption mode, in use adopts parallel interface communication modes.
The utility model adopts various kinds of sensors conventional in agricultural and high-performance microprocessor chip, can realize measuring accurately the many kinds of parameters in agricultural environment and the function such as display, be suitable for measurement and the education experiment of the courses such as plantation, agronomy, physics.
Claims (5)
1. an agriculture multi-parameter measurer, it is characterized in that: comprise measuring instrument main frame and four kinds of sensor measurement sensing probes, measuring instrument main frame is provided with liquid crystal display, illumination sense input, carbon dioxide sensing input end, sulfuretted hydrogen sense input, ammonia sense input, 3*3 keyboard and USB port; In measuring instrument, there is microprocessor chip, and light sense amp circuit, carbon dioxide sensing amplifying circuit, sulfuretted hydrogen Sensing interface circuit, ammonia Sensing interface circuit, driving circuit and display circuit, for the collection of settling signal, computing and display.
2. agriculture multi-parameter measurer according to claim 1, is characterized in that: its four kinds of sensor measurement probes are connected with microprocessor respectively by respective amplifying circuit or interface circuit; Its microprocessor, driving circuit, display circuit are connected successively.
3. agriculture multi-parameter measurer according to claim 1, is characterized in that: that its microprocessor chip adopts is the MSP430F479 that TI company produces.
4. agriculture multi-parameter measurer according to claim 1, is characterized in that: its 3*3 keyboard comprises menu key, removes button, returns button, determines button, time button, function button, backlight key and two selection keys.
5. agriculture multi-parameter measurer according to claim 1, is characterized in that: its illumination sense input, carbon dioxide sensing input end, sulfuretted hydrogen sense input, ammonia sense input all adopt multicore aviation socket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520664209.8U CN204881703U (en) | 2015-08-30 | 2015-08-30 | Many parameter measurement of agricultural appearance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520664209.8U CN204881703U (en) | 2015-08-30 | 2015-08-30 | Many parameter measurement of agricultural appearance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204881703U true CN204881703U (en) | 2015-12-16 |
Family
ID=54826066
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520664209.8U Expired - Fee Related CN204881703U (en) | 2015-08-30 | 2015-08-30 | Many parameter measurement of agricultural appearance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204881703U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105841741A (en) * | 2016-03-30 | 2016-08-10 | 宁夏意洋节能科技有限公司 | Portable programmable field characteristic parameter collection instrument based on smart agriculture |
-
2015
- 2015-08-30 CN CN201520664209.8U patent/CN204881703U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105841741A (en) * | 2016-03-30 | 2016-08-10 | 宁夏意洋节能科技有限公司 | Portable programmable field characteristic parameter collection instrument based on smart agriculture |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205786451U (en) | A kind of condenser type grain moisture detector | |
| CN106546647A (en) | A kind of intelligent telemetering dissolved oxygen meter and its implementation based on NB IoT | |
| CN202903721U (en) | Device for measuring and controlling soil humidity | |
| CN204881703U (en) | Many parameter measurement of agricultural appearance | |
| CN207557152U (en) | A kind of novel pH value intelligent measure circuit | |
| CN203100773U (en) | Farmland environment information acquisition device | |
| CN101975800A (en) | Component detection method for night soil fertilizer of livestock and poultry and detection device thereof | |
| Liu et al. | Design of hierarchical monitoring system for crop growth environment based on arduino yún development platform | |
| CN204101942U (en) | Plant growth environment multiple information detects and display device | |
| CN203595551U (en) | Short-distance wireless infrared multipath temperature-collecting system for grain depot | |
| CN205028481U (en) | Multi -functional experiment appearance of agricultural | |
| CN202836816U (en) | Multipoint temperature measurement circuit | |
| CN206479482U (en) | A kind of intelligent telemetering dissolved oxygen meter based on NB IoT arrowbands Internet of Things | |
| CN202652544U (en) | Small wind power field low power consumption wind measurement data collection system | |
| CN204882571U (en) | Blood glucose meter based on zigbee | |
| CN205808564U (en) | Infrared detector module multi way temperature based on diode thermometric monitoring system | |
| CN203573181U (en) | PH controller | |
| CN203629609U (en) | Temperature and humidity detection device | |
| CN202994783U (en) | Single-chip based soil humidity detection system | |
| CN204926638U (en) | Meteorological experiment appearance of measuring | |
| CN203643445U (en) | Quick farmland soil moisture measuring instrument | |
| CN202548564U (en) | Portable collecting device of greenhouse environment parameters | |
| CN203323893U (en) | Shell temperature measuring device used by multiple persons synchronously | |
| CN109387240A (en) | A kind of agricultural multi-functions measuring device | |
| CN206102625U (en) | Blue tooth body temperature meter |
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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151216 Termination date: 20180830 |