CN103926856A - Agricultural environment information acquisition control device - Google Patents
Agricultural environment information acquisition control device Download PDFInfo
- Publication number
- CN103926856A CN103926856A CN201410068384.0A CN201410068384A CN103926856A CN 103926856 A CN103926856 A CN 103926856A CN 201410068384 A CN201410068384 A CN 201410068384A CN 103926856 A CN103926856 A CN 103926856A
- Authority
- CN
- China
- Prior art keywords
- pin
- resistance
- microprocessor
- plug connector
- capacitor
- 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.)
- Granted
Links
Abstract
The invention relates to an agricultural environment information acquisition control device. The device comprises a control circuit and a sensor interface circuit which are electrically connected with each other. The control circuit comprises an STM32F107 microprocessor U1 and a shifting register U16. A pin 23 of the microprocessor U1 is connected with a wake-up circuit. The wake-up circuit comprises a resistor R3, a capacitor C6 and a switch K1. The pin 23 of the microprocessor U1 is further connected with one end of the resistor R3, one end of the capacitor C6 and one end of the switch K1, the other end of the resistor R3 is connected with a power supply, and the other end of the switch K1 and the other end of the capacitor C6 are grounded. The shifting register U16 is electrically connected with the sensor interface circuit. Environmental parameters of an agricultural site can be monitored in real time through the device; the device has wireless access to the Internet and is convenient and flexible to use; by the adoption of distributed management of sensor nodes, various sensors can be freely combined, and therefore the system flexibility is improved; all sensor node power supplies are independently controlled, and therefore the system power consumption can be effectively reduced and the requirement for working in the field for a long time can be met.
Description
Technical field
The present invention relates to a kind of agricultural environment information acquisition control device, belong to agricultural technology field.
Background technology
Agricultural environment refers to the various natural of agro-ecology survival and development and overall through engineered natural cause, and Agricultural Environmental Monitoring is exactly the environmental parameter of utilizing the means such as physics, chemistry monitoring agricultural scene.Agricultural production for a long time adopts extensive management,, then takes appropriate measures to judging as substance environment with the producer's experience.Along with the development trend of precision agriculture, more and more pay attention to the collection of environmental information, start to adopt the soil moisture, soil moisture, the sensors such as illumination, but still be that artificial discrete acquisition mode is main, workload is large, can not be real-time, and long-term judges agricultural environment.
Summary of the invention
The problem to be solved in the present invention is for above problem, and a kind of agricultural environment information acquisition control device is provided.
For addressing the above problem, the technical solution adopted in the present invention is: a kind of agricultural environment information acquisition control device, is characterized in that: described agricultural environment information acquisition control device comprises control circuit, the sensor interface circuitry of electrical connection;
Described control circuit comprises microprocessor U1, shift register U16, microprocessor U1 is STM32F107,94 pin of microprocessor U1 patch fitting J0 through resistance R 4, between 8 pin of microprocessor U1 and 9 pin, meet crystal oscillator X1, between 12 pin of microprocessor U1 and 13 pin, meet crystal oscillator X2, one end of the 14 pin connecting resistance R1 of microprocessor U1, one end of capacitor C 5, another termination power of resistance R 1, the other end ground connection of capacitor C 5;
23 pin of described microprocessor U1 connect wake-up circuit, wake-up circuit comprises resistance R 3, capacitor C 6 and K switch 1, one end, one end of capacitor C 6 and one end of K switch 1 of the 23 pin connecting resistance R3 of microprocessor U1, another termination power of resistance R 3, the other end ground connection of K switch 1, the other end ground connection of capacitor C 6;
1 pin of described shift register U16 connects 63 pin of microprocessor U1, and 2 pin of shift register U16 connect 61 pin of microprocessor U1, and 9 pin of shift register U16 connect 62 pin of microprocessor U1, and shift register U16 is electrically connected with sensor interface circuitry.
A kind of prioritization scheme, described sensor interface circuitry comprises baroceptor interface circuit, soil temperature sensor interface circuit, the aerial temperature and humidity sensor interface circuitry of electrical connection.
Another kind of prioritization scheme, described baroceptor interface circuit comprises air pressure module sensors U3, resistance R 14, resistance R 15, resistance R 16, resistance R 17, the model of air pressure module sensors U3 is MS5540C, one end of the 1 pin connecting resistance R14 of air pressure module sensors U3, 15 pin of microprocessor U1, another termination power of resistance R 14, one end of the 8 pin connecting resistance R15 of air pressure module sensors U3, 18 pin of microprocessor U1, another termination power of resistance R 15, one end of the 7 pin connecting resistance R16 of air pressure module sensors U3, 17 pin of microprocessor U1, another termination power of resistance R 16, one end of the 6 pin connecting resistance R17 of air pressure module sensors U3, 26 pin of microprocessor U1, another termination power of resistance R 17, 5 pin of air pressure module sensors U3 connect power supply.
Further, described soil temperature sensor interface circuit comprises resistance R 18, resistance R 19 and plug connector J2, plug connector J2 is used for connecting soil temperature sensor, the model of soil temperature sensor is DS18B20, 1 pin of plug connector J2 connects the power cathode of sensor, 2 pin of plug connector J2 connect sensor signal, 3 pin of plug connector J2 connect sensor positive pole, 4 pin of plug connector J2 are connected with 6 pin of shift register U16, one end of resistance R 18, one termination power of resistance R 19, the other end of resistance R 18 patches 4 pin of fitting J2, 6 pin of shift register U16, 3 pin of plug connector J2 connect power supply, the other end of resistance R 19 patches 2 pin of fitting J2, 2 pin of microprocessor U1, the 1 pin ground connection of plug connector J2.
Further, described aerial temperature and humidity sensor interface circuitry comprises resistance R 20, resistance R 21, resistance R 22 and plug connector J3, plug connector J3 is used for connecting aerial temperature and humidity sensor, the model of aerial temperature and humidity sensor is SHT11, 1 pin of plug connector J3 connects the power cathode of aerial temperature and humidity sensor, 2 pin of plug connector J3 connect the data-signal of aerial temperature and humidity sensor, 3 pin of plug connector J3 connect the clock signal of aerial temperature and humidity sensor, 4 pin of plug connector J3 connect the positive source of aerial temperature and humidity sensor, 5 pin of plug connector J3 connect the power cathode of aerial temperature and humidity sensor, one end of resistance R 20, one end of resistance R 21, one termination power of resistance R 22, the other end of resistance R 20 patches 5 pin of fitting J3, 10 pin of shift register U16, 4 pin of plug connector J3 connect power supply, the other end of resistance R 21 patches 3 pin of fitting J3, 4 pin of microprocessor U1, the other end of resistance R 22 patches 2 pin of fitting J3, 5 pin of microprocessor U1, the 1 pin ground connection of plug connector J3.
Further, described GPS and GPRS communication interface circuit comprise single channel current limliting panel switches U13, transceiver U17, resistance R 75 is to resistance R 78, capacitor C 22, capacitor C 23, capacitor C 34 is to capacitor C 37, plug connector J12 and plug connector J13, the model of single channel current limliting panel switches U13 is TPS2041BDBV, the model of transceiver U17 is MAX3232, plug connector J12 is used for connecting GPRS communication module, GPRS communication module adopts the embedded GPRS DTU of LT2302 module, 1 pin of plug connector J12 connects the ON/OFF end of GPRS communication module, 2 pin of plug connector J12 meet the positive source DC+ of GPRS communication module, 3 pin of plug connector J12 meet the power cathode DC-of GPRS communication module, the Transistor-Transistor Logic level serial ports that 4 pin of plug connector J12 connect GPRS communication module receives TR, the Transistor-Transistor Logic level serial ports that 4 pin of plug connector J12 connect GPRS communication module sends TT, what 4 pin of plug connector J12 connect GPRS module is ready to signal LINK, one end of the 1 pin connecting resistance R75 of plug connector J12, 76 pin of microprocessor U1, 4 pin of plug connector J12 connect 78 pin of microprocessor U1, 5 pin of plug connector J12 connect 79 pin of microprocessor U1, 6 pin of plug connector J12 connect 77 pin of microprocessor U1, one end of resistance R 76, another termination power of resistance R 76.
Further, described plug connector J13 is used for connecting GPS communication module, adopt global BR-355 GPS module, 1 pin of plug connector J13 connects the power cathode of GPS communication module, the RS-232 serial ports that 2 pin of plug connector J13 connect GPS communication module sends TX, the RS-232 serial ports that 3 pin of plug connector J13 connect GPS communication module receives RX, 4 pin of plug connector J13 connect the positive source of GPS communication module, 5 pin of plug connector J13 connect the power cathode of GPS communication module, 2 pin of plug connector J13 receive 13 pin of hair device U17, 3 pin of plug connector J13 receive 14 pin of hair device U17, 1 pin of the 4 pin order passage current limliting panel switches U13 of plug connector J13, one end of capacitor C 22, one end of capacitor C 23, the other end of capacitor C 22, the other end ground connection of capacitor C 23, 4 pin of single channel current limliting panel switches U13 connect 85 pin of microprocessor U1, one end of resistance R 77, another termination power of resistance R 77, 11 pin of transceiver U17 connect 80 pin of microprocessor U1, 12 pin of transceiver U17 connect 83 pin of microprocessor U1.
The present invention takes above technical scheme, has the following advantages: for above shortcoming, this device, taking network technology and sensor technology as core, adapts to the requirement of modern agricultural development, realizes the Intellectualized monitoring of agricultural environment.This device carries out distributed management to sensor node, obtains agriculture site environment parameter according to on-the-spot or long-range setting, and passes through GPRS wireless network connection Internet, realizes remotely intelligently monitoring and Remote Data Analysis.
This device has solved the Real-Time Monitoring of agriculture site environment parameter, and the problems such as long term monitoring can be by wireless connections Internet network, easy to use and flexible.Particularly there is wireless sensor node interface, not only make information acquisition scope greatly expand, and arbitrarily increase environmental parameter kind by wave point.This scheme adopts distributed management to sensor node, and various sensors can arbitrarily combine, and increases system flexibility.Each sensor node power supply is independently controlled, and can effectively reduce system power dissipation, meets field long-term work requirement.
Below in conjunction with drawings and Examples, the invention will be further described.
Brief description of the drawings
Accompanying drawing 1 is the circuit block diagram of control circuit in the embodiment of the present invention;
Accompanying drawing 2 is the circuit theory diagrams of sensor interface circuitry in the embodiment of the present invention;
Accompanying drawing 3 is the circuit theory diagrams of baroceptor interface circuit in the embodiment of the present invention, soil temperature sensor interface circuit, aerial temperature and humidity sensor interface circuitry;
Accompanying drawing 4 is the circuit theory diagrams of wind speed sensor interface circuitry in the embodiment of the present invention, optical sensor interface circuit, soil humidity sensor interface circuit;
Accompanying drawing 5 is the circuit theory diagrams of carbon dioxide sensor interface circuit in the embodiment of the present invention;
Accompanying drawing 6 is the circuit theory diagrams of evaporation sensor interface circuit in the embodiment of the present invention;
Accompanying drawing 7 is the circuit theory diagrams of rainfall amount sensor interface circuitry in the embodiment of the present invention;
Accompanying drawing 8 is the circuit theory diagrams of wireless interface circuit in the embodiment of the present invention;
Accompanying drawing 9 is the circuit theory diagrams of network interface circuit in the embodiment of the present invention;
Accompanying drawing 10 is the circuit theory diagrams of power circuit in the embodiment of the present invention;
Accompanying drawing 11 is the circuit theory diagrams of GPS and GPRS communication interface circuit in the embodiment of the present invention;
Accompanying drawing 12 is the enlarged drawing of microprocessor U1 in accompanying drawing 2;
In figure,
1-control circuit, 2-sensor interface circuitry, 3-wireless interface circuit, 4-network interface circuit, 5-power circuit, 6-baroceptor interface circuit, 7-soil temperature sensor interface circuit, 8-aerial temperature and humidity sensor interface circuitry, 9-air velocity transducer interface circuit, 10-optical sensor interface circuit, 11-soil humidity sensor interface circuit, 12-carbon dioxide sensor interface circuit, 13-evaporation sensor interface circuit, 14-rainfall amount sensor interface circuitry, 15-wireless transmission interface circuit, 16-wireless receiving interface circuit, 17-power switch circuit, 18-mu balanced circuit, 19-charging circuit, 20-battery capacity indication circuit, 21-GPS and GPRS communication interface circuit.
Embodiment
Embodiment, as shown in Figure 1, a kind of agricultural environment information acquisition control device, comprises control circuit 1, sensor interface circuitry 2, wireless interface circuit 3, network interface circuit 4 and the power circuit 5 of electrical connection.
The effect of control circuit 1: comprise microprocessor U1, it is the core of whole system, microprocessor U1 adopts STM32F107 chip, and STM32F107 is a STM32 interconnected type series of ST Microelectronics's release, 32 high-performance microcontrollers that kernel is ARM Cortex-M3.Be responsible for system call, data acquisition, data processing, the functions such as Internet Transmission.
The effect of sensor interface circuitry 2: be various sensor interfaces, include line sensor node and wireless sensor node.Each sensor has independent current source, or several sensor has an independent current source, and each independent current source all can independent switch, only, in the time gathering certain sensor, just opens corresponding power supply, thereby effectively reduces power consumption, prolongation battery.Each sensor interface all arranges line detection signal, improves system flexibility.Sensor interface circuitry 2 comprises baroceptor interface circuit 6, soil temperature sensor interface circuit 7, aerial temperature and humidity sensor interface circuitry 8, air velocity transducer interface circuit 9, optical sensor interface circuit 10, soil humidity sensor interface circuit 11, carbon dioxide sensor interface circuit 12, evaporation sensor interface circuit 13, the rainfall amount sensor interface circuitry 14 of electrical connection.
Wireless interface circuit 3, comprises wireless transmission interface circuit 15 and wireless receiving interface circuit 16, and wireless transmission interface circuit 15 connects 433MHz wireless transmitter module, for sending instruction to wireless sensor node; Wireless receiving interface circuit 16 connects 315MHz wireless receiving module, for receiving the image data of wireless sensor node.
The effect of network interface circuit 4: realize TCP/IP network interface, the Internet network that can be wired, increases system reliability.
The effect of power circuit 5: be whole system electric power system, there is accumulator and mains-supplied function, there is soft power on/off function, ensure zero-power under off-mode.Power circuit 5 comprises power switch circuit 17, mu balanced circuit 18, charging circuit 19 and battery capacity indication circuit 20.
Baroceptor interface circuit 6, adopts Switzerland INTERSEMA digital gas pressure sensor MS5540C, meets European ROHS standard, has low-power consumption, the features such as low-voltage.
Soil temperature sensor interface circuit 7, the DS18B20 digital temperature sensor of DALLAS company of the connection U.S., interface, with online measuring ability, increases system intelligence.
Aerial temperature and humidity sensor interface circuitry 8, connects SHT11 humidity and temperature sensor, and SHT11 is the accurate digital relative humidity of the monolithic whole school with I2C bus interface and the temperature sensor that Sensirion company of Switzerland produces.This sensor adopts unique CMOSens TM technology, has digital output, exempts from debugging, non-calibrating, exempts from peripheral circuit and full feature of exchanging.Interface, with online measuring ability, increases system intelligence.
Air velocity transducer interface circuit 9, for connecting the integrated wind speed wind direction sensor of EC-8SX, increases system reliability, has level shifting circuit.Interface, with online measuring ability, increases system intelligence.
Optical sensor interface circuit 10, connects RY-G type intensity of illumination sensor, receives 4-20mA electric current loop signal.Interface, with online measuring ability, increases system intelligence.
Soil humidity sensor interface circuit 11, connects TDR-3 type soil moisture sensor, and receiver voltage signal, has signal modulation function.Interface, with online measuring ability, increases system intelligence.
Carbon dioxide sensor interface circuit 12, connects the infrared C0 of CM1101 NDIR
2sensor, is connected with system by serial ports, adopts independent current source, and only opening power in the time detecting, can effectively reduce power consumption.Interface, with online measuring ability, increases system intelligence.
Evaporation sensor interface circuit 13, connects ZFL1 type evaporator, and receiver voltage signal, has signal modulation function.Adopt independent current source, only opening power in the time detecting, can effectively reduce power consumption.Interface, with online measuring ability, increases system intelligence.
Rainfall amount sensor interface circuitry 14, connects RY-YLH02 rain sensor, receiving key amount, and interface, with online measuring ability, increases system intelligence.
Power switch circuit 17, the dynamo-electric road of supply power soft switch, can effectively ensure zero-power under off-mode, and system significant data is not lost when shutdown.
Mu balanced circuit 18, adopts switching regulator IC, improves conversion efficiency, reduces heating; Charging circuit 19, battery charging and indicating circuit; Battery capacity indication circuit 20, by detecting cell voltage, calculates battery capacity.There is detection cut-off circuit, can effectively reduce power consumption.
GPS and GPRS communication interface circuit 21, by GPRS communication module, wireless connections Internet network, sends data to remote server.
As shown in Fig. 2, Figure 12, control circuit 1 comprises microprocessor U1, shift register U16, the model of microprocessor U1 is STM32F107,94 pin of microprocessor U1 patch fitting J0 through resistance R 4, between 8 pin of microprocessor U1 and 9 pin, meet crystal oscillator X1, between 12 pin of microprocessor U1 and 13 pin, meet crystal oscillator X2, one end of the 14 pin connecting resistance R1 of microprocessor U1, one end of capacitor C 5, another termination power of resistance R 1, the other end ground connection of capacitor C 5.
23 pin of microprocessor U1 connect wake-up circuit, wake-up circuit comprises resistance R 3, capacitor C 6 and K switch 1, one end, one end of capacitor C 6 and one end of K switch 1 of the 23 pin connecting resistance R3 of microprocessor U1, another termination power of resistance R 3, the other end ground connection of K switch 1, the other end ground connection of capacitor C 6.
14,72,76,77,89,90 pin of microprocessor U1 patch fitting J1, and plug connector J1 is used for connecting commissioning device so that microprocessor U1 is debugged.
Shift register U16 is formed in line detection circuit, formed by eight bit parallel input/serial output register 74LV165,1 pin of shift register U16 connects 63 pin of microprocessor U1,2 pin of shift register U16 connect 61 pin of microprocessor U1,9 pin of shift register U16 connect 62 pin of microprocessor U1, and microprocessor U1 inputs the presence of each sensor by shift register U16.
As shown in Figure 3, baroceptor interface circuit 6 comprises air pressure module sensors U3, resistance R 14, resistance R 15, resistance R 16, resistance R 17, the model of air pressure module sensors U3 is MS5540C, one end of the 1 pin connecting resistance R14 of air pressure module sensors U3, 15 pin of microprocessor U1, another termination power of resistance R 14, one end of the 8 pin connecting resistance R15 of air pressure module sensors U3, 18 pin of microprocessor U1, another termination power of resistance R 15, one end of the 7 pin connecting resistance R16 of air pressure module sensors U3, 17 pin of microprocessor U1, another termination power of resistance R 16, one end of the 6 pin connecting resistance R17 of air pressure module sensors U3, 26 pin of microprocessor U1, another termination power of resistance R 17, 5 pin of air pressure module sensors U3 connect power supply.
Soil temperature sensor interface circuit 7 comprises resistance R 18, resistance R 19 and plug connector J2, plug connector J2 is used for connecting soil temperature sensor, the model of soil temperature sensor is DS18B20, 1 pin of plug connector J2 connects the power cathode of sensor, 2 pin of plug connector J2 connect sensor signal, 3 pin of plug connector J2 connect sensor positive pole, 4 pin of plug connector J2 are connected with 6 pin of shift register U16, one end of resistance R 18, one termination power of resistance R 19, the other end of resistance R 18 patches 4 pin of fitting J2, 6 pin of shift register U16, 3 pin of plug connector J2 connect power supply, the other end of resistance R 19 patches 2 pin of fitting J2, 2 pin of microprocessor U1, the 1 pin ground connection of plug connector J2.
Aerial temperature and humidity sensor interface circuitry 8 comprises resistance R 20, resistance R 21, resistance R 22 and plug connector J3, plug connector J3 is used for connecting aerial temperature and humidity sensor, the model of aerial temperature and humidity sensor is SHT11, 1 pin of plug connector J3 connects the power cathode of aerial temperature and humidity sensor, 2 pin of plug connector J3 connect the data-signal of aerial temperature and humidity sensor, 3 pin of plug connector J3 connect the clock signal of aerial temperature and humidity sensor, 4 pin of plug connector J3 connect the positive source of aerial temperature and humidity sensor, 5 pin of plug connector J3 connect the power cathode of aerial temperature and humidity sensor, one end of resistance R 20, one end of resistance R 21, one termination power of resistance R 22, the other end of resistance R 20 patches 5 pin of fitting J3, 10 pin of shift register U16, 4 pin of plug connector J3 connect power supply, the other end of resistance R 21 patches 3 pin of fitting J3, 4 pin of microprocessor U1, the other end of resistance R 22 patches 2 pin of fitting J3, 5 pin of microprocessor U1, the 1 pin ground connection of plug connector J3.
As shown in Figure 4, air velocity transducer interface circuit 9 comprises dual power supply conversion transceiver U5, resistance R 24, resistance R 25, capacitor C 11 and plug connector J4, the model of dual power supply conversion transceiver U5 is 74LVC4245, plug connector J4 is used for connecting wind speed wind direction sensor, wind speed wind direction sensor adopts the integrated wind speed wind direction sensor of EC-8SX, 1 pin of plug connector J4 meets the wind direction signals D0 of wind speed wind direction sensor, 2 pin of plug connector J4 meet the wind direction signals D1 of wind speed wind direction sensor, 3 pin of plug connector J4 meet the wind direction signals D2 of wind speed wind direction sensor, 4 pin of plug connector J4 meet the wind direction signals D3 of wind speed wind direction sensor, 5 pin of plug connector J4 meet the wind direction signals D4 of wind speed wind direction sensor, 6 pin of plug connector J4 meet the wind direction signals D5 of wind speed wind direction sensor, 7 pin of plug connector J4 meet the wind direction signals D6 of wind speed wind direction sensor, 8 pin of plug connector J4 connect the positive source of wind speed wind direction sensor, 9 pin of plug connector J4 connect the power cathode of wind speed wind direction sensor, the 10 pin skies of plug connector J4, 11 pin of plug connector J4 meet the wind velocity signal CP of wind speed wind direction sensor, 11 pin of plug connector J4 connect the power cathode of wind speed wind direction sensor, 1 pin of dual power supply conversion transceiver U5, 2 pin connect 8 pin of power supply and plug connector J4, 3 pin of dual power supply conversion transceiver U5, 4 pin, 5 pin, 6 pin, 7 pin, 8 pin, 1 pin of 9 pin and plug connector J4, 2 pin, 3 pin, 4 pin, 5 pin, 6 pin, 7 pin are corresponding one by one, 10 pin of dual power supply conversion transceiver U5, 11 pin of plug connector J4 connect one end of capacitor C 11, one end of resistance R 25, the other end ground connection of capacitor C 11, another termination power of resistance R 25, 9 pin of plug connector J4 connect power supply through resistance R 24, 14 pin of dual power supply conversion transceiver U5 connect 40 pin of microprocessor U1, 14 pin of dual power supply conversion transceiver U5 connect 40 pin of microprocessor U1, 15 pin of dual power supply conversion transceiver U5 connect 46 pin of microprocessor U1, 16 pin of dual power supply conversion transceiver U5 connect 45 pin of microprocessor U1, 17 pin of dual power supply conversion transceiver U5 connect 44 pin of microprocessor U1, 18 pin of dual power supply conversion transceiver U5 connect 43 pin of microprocessor U1, 19 pin of dual power supply conversion transceiver U5 connect 41 pin of microprocessor U1, 20 pin of dual power supply conversion transceiver U5 connect 39 pin of microprocessor U1, 21 pin of dual power supply conversion transceiver U5 connect 38 pin of microprocessor U1.
Optical sensor interface circuit 10 comprises operational amplifier U6, resistance R 26, resistance R 27, resistance R 28, resistance R 29, resistance R 30 and plug connector J5, the model of operational amplifier U6 is LM358, plug connector J5 is used for connecting optical sensor, optical sensor adopts RY-G type intensity of illumination sensor, 4 pin of plug connector J5 connect the positive source of optical sensor, 3 pin of plug connector J5 connect the power cathode of optical sensor, 2 pin of plug connector J5 connect the signal of optical sensor, 1 pin of plug connector J5 connects the power cathode of optical sensor, the power supply termination power of operational amplifier U6, 4 pin of plug connector J5, the in-phase input end of operational amplifier U6 is through one end of resistance R 28 connecting resistance R27, 2 pin of plug connector J5, the other end ground connection of resistance R 27, resistance R 30 is arranged between the inverting input and output terminal of operational amplifier U6, the inverting input of operational amplifier U6 is through resistance R 29 ground connection, one end of the 1 pin connecting resistance R26 of plug connector J5, 12 pin of shift register U16, another termination power of resistance R 26, 31 pin of the output termination microprocessor U1 of operational amplifier U6.
Soil humidity sensor interface circuit 11 comprises operational amplifier U7, resistance R 31, resistance R 32, resistance R 33, resistance R 34, resistance R 35 and plug connector J6, the model of operational amplifier U7 is LM358, plug connector J6 is used for connecting soil humidity sensor, soil humidity sensor adopts TDR-3 type soil moisture sensor, 1 pin of plug connector J6 connects soil humidity sensor power cathode, 2 pin of plug connector J6 connect soil humidity sensor signal, 3 pin of plug connector J6 connect soil humidity sensor positive source, 4 pin of plug connector J6 connect soil humidity sensor power cathode, the in-phase input end of operational amplifier U7 is through one end of resistance R 33 connecting resistance R32, 2 pin of plug connector J6, the other end ground connection of resistance R 32, resistance R 35 is arranged between the inverting input and output terminal of operational amplifier U7, the inverting input of operational amplifier U7 is through resistance R 34 ground connection, one end of the 4 pin connecting resistance R31 of plug connector J6, 13 pin of shift register U16, another termination power of resistance R 31, 30 pin of the output termination microprocessor U1 of operational amplifier U7.
As shown in Figure 5, carbon dioxide sensor interface circuit 12 comprises single channel current limliting panel switches U8, capacitor C 12, capacitor C 13, resistance R 36, resistance R 37, resistance R 38, resistance R 39, triode Q1 and plug connector J7, the model of single channel current limliting panel switches U8 is TPS2041BDBV, plug connector J7 is used for connecting carbon dioxide sensor, and carbon dioxide sensor adopts the infrared C0 of CM1101 NDIR
2sensor, 1 pin of plug connector J7 meets C0
2the positive source of sensor, 2 pin of plug connector J7 meet C0
2the signal RX of sensor, 3 pin of plug connector J7 meet C0
2the signal TX of sensor, 4 pin of plug connector J7 connect the positive source of sensor, and 5 pin of plug connector J7 meet C0
2the power cathode of sensor, one end of the 4 pin connecting resistance R36 of single channel current limliting panel switches U8, 96 pin of microprocessor U1, another termination power of resistance R 36, 1 pin of single channel current limliting panel switches U8 connects one end of capacitor C 12, one end of capacitor C 13, 1 pin of plug connector J7, the other end of capacitor C 12, the other end ground connection of capacitor C 13, 2 pin of plug connector J7 connect 92 pin of microprocessor U1, 3 pin of plug connector J7 connect 93 pin of microprocessor U1, 4 pin of plug connector J7 are through one end of resistance R 38 connecting resistance R37, the base stage of triode Q1, the emitter of triode Q1, the other end ground connection of resistance R 37, the collector of triode Q1 connects 4 pin of shift register U16, one end of resistance R 39, the other end ground connection of resistance R 39.
As shown in Figure 6, evaporation sensor interface circuit 13 comprises operational amplifier U9, operational amplifier U10, resistance R 40, resistance R 41, resistance R 42, resistance R 43, resistance R 44, triode Q2 and plug connector J8, operational amplifier U9, the model of operational amplifier U10 is LM358, plug connector J8 is used for connecting evaporation sensor, evaporation sensor adopts ZFL1 type evaporator, 1 pin of plug connector J8 connects the signal end of evaporation sensor, 2 pin of plug connector J8 connect the positive source of evaporation sensor, 3 pin of plug connector J8 connect the power cathode of evaporation sensor, 4 pin of plug connector J8 connect the power cathode of evaporation sensor, the base stage of triode Q2 connects 37 pin of microprocessor U1 through resistance R 40, the collector of triode Q2 connects power supply, the emitter of triode Q2 connects the power end of operational amplifier U9, 2 pin of plug connector J8, one end of the 4 pin connecting resistance R41 of plug connector J8, 3 pin of shift register U16, another termination power of resistance R 41, 1 pin of plug connector J8 connects the in-phase input end of operational amplifier U9, its output terminal of anti-phase input termination of operational amplifier U9, the output terminal of operational amplifier U9 connects the in-phase input end of operational amplifier U10 through resistance R 42, resistance R 44 is connected between the inverting input and output terminal of operational amplifier U10, the inverting input of operational amplifier U10 is through resistance R 43 ground connection, 36 pin of the output termination microprocessor U1 of operational amplifier U10.
As shown in Figure 7, rainfall amount sensor interface circuitry 14 comprises capacitor C 14, resistance R 45, resistance R 46, resistance R 47 and plug connector J9, plug connector J9 is used for connecting rainfall amount sensor, rainfall amount sensor adopts RY-YLH02 rain sensor, 1 pin of plug connector J9 connects the power cathode of rainfall amount sensor, 1 pin of plug connector J9 connects the positive source of rainfall amount sensor, 3 pin of plug connector J9 connect the power cathode of rainfall amount sensor, one end of the 3 pin connecting resistance R45 of plug connector J9, 14 pin of shift register U16, another termination power of resistance R 45, one end of the 2 pin connecting resistance R46 of plug connector J9, one end of resistance R 47, one end of capacitor C 14, another termination power of resistance R 46, the other end ground connection of capacitor C 14, 42 pin of another termination microprocessor U1 of resistance R 47.
As shown in Figure 8, wireless interface circuit 3 comprises single channel current limliting panel switches U11, resistance R 48, capacitor C 14, capacitor C 15, wireless transmission interface circuit 15 and wireless receiving interface circuit 16, the model of single channel current limliting panel switches U11 is TPS2041BDBV, 4 pin of single channel current limliting panel switches U11 connect 1 pin of microprocessor U1,1 pin of single channel current limliting panel switches U11 exports one end of termination capacitor C 14, one end of capacitor C 15, the other end of capacitor C 14, the other end ground connection of capacitor C 15.
Wireless transmission interface circuit 15 comprises resistance R 49, resistance R 50, triode Q3 and plug connector J10, plug connector J10 is used for connecting wireless transmitter module, adopt 433MHz wireless transmitter module, 1 pin of plug connector J10 connects wireless transmitter module positive source, 2 pin of plug connector J10 connect wireless transmitter module data terminal, 3 pin of plug connector J10 connect wireless transmitter module power cathode, one end of the collector connecting resistance R50 of triode Q3, 1 pin of plug connector J10, 1 pin of the other end order passage current limliting panel switches U11 of resistance R 50, 2 pin of plug connector J10, the base stage of triode Q3 connects 29 pin of microprocessor U1 through resistance R 49, the grounded emitter of triode Q3.
Wireless receiving interface circuit 16 comprises resistance R 51, resistance R 52, resistance R 53, resistance R 54, triode Q4 and plug connector J11, plug connector J11 is used for connecting wireless receiving module, adopt 315MHz wireless receiving module, 1 pin of plug connector J11 connects wireless receiving module positive source, 2 pin of plug connector J11 connect wireless receiving module data terminal, the 3 pin skies of plug connector J11, 4 pin of plug connector J11 connect wireless transmit receiver module power cathode, one end of the collector connecting resistance R51 of triode Q4, one end of resistance R 52, 98 pin of another termination microprocessor U1 of resistance R 51, another termination power of resistance R 52, the grounded emitter of triode Q4, one end of the base stage connecting resistance R53 of triode Q4, one end of resistance R 54, the other end ground connection of resistance R 53, the other end of resistance R 54 patches 2 pin of fitting J11, 1 pin of the 1 pin order passage current limliting panel switches U11 of plug connector J11.
Detect soil moisture adopting soil humidity sensor interface circuit 11 to connect TDR-3 type soil moisture sensor apart from acquisition control device more nearby; Adopting wireless interface circuit 3 to connect wireless transmitter module, wireless receiving module at a distance, wireless transmit receiver module connects soil humidity sensor and detects soil moisture.
Because wireless transmitter module is different from the frequency of wireless receiving module, avoid transmitting, received the phase mutual interference of wireless signal, soil humidity sensor connects wireless transmit receiver module, wireless transmit receiver module receives the 433MHZ signal that wireless transmitter module sends, the work of control soil humidity sensor, by the humidity information detecting, by the 415MHZ signal transmitting of wireless transmit receiver module, wireless receiving module receives this signal.
As shown in Figure 9, network interface circuit 4 comprises ethernet transceiver U12, RJ45 joint, resistance R 55 is to resistance R 74, capacitor C 17 is to capacitor C 21, and the model of ethernet transceiver U12 is DM9161AEP, and the model of RJ45 joint is HR911105A, and too 10 pin of net transceiver U12 connect 65 pin of microprocessor U1, and too 12 pin of net transceiver U12 connect 24 pin of microprocessor U1, one end of resistance R 61,67 pin of another termination microprocessor U1 of resistance R 61, too one end of the 32 pin connecting resistance R57 of net transceiver U12, one end of resistance R 59,66 pin of another termination microprocessor U1 of resistance R 57, the other end power supply of resistance R 59, too one end of the 25 pin connecting resistance R58 of net transceiver U12, 25 pin of microprocessor U1, another termination power of resistance R 58, too 24 pin of net transceiver U12 connect 16 pin of microprocessor U1, too 37 pin of net transceiver U12 connect 32 pin of microprocessor U1, too 29 pin of net transceiver U12 connect 33 pin of microprocessor U1, too 28 pin of net transceiver U12 connect 34 pin of microprocessor U1, too 21 pin of net transceiver U12 connect 48 pin of microprocessor U1, too 20 pin of net transceiver U12 connect 51 pin of microprocessor U1, too 19 pin of net transceiver U12 connect 52 pin of microprocessor U1, too 3 pin of net transceiver U12, 4 pin, 7 pin, 8 pin, 11 pin, 3 pin of 13 pin and RJ45 joint, 6 pin, 1 pin, 2 pin, 10 pin, 11 pin are corresponding to be connected.
As shown in figure 10, power circuit 5 comprises power switch circuit 17, mu balanced circuit 18, charging circuit 19 and battery capacity indication circuit 20.
Power switch circuit 17 comprises resistance R 87, resistance R 88, resistance R 89, diode D1, diode D2, capacitor C 26, K switch 2 and triode Q7, one termination power of resistance R 87, the positive pole of another terminating diode D1 of resistance R 87, 58 pin of microprocessor U1, the negative pole of diode D1 connects the negative pole of diode D2 and through capacitor C in parallel 26, the rear ground connection of K switch 2, one end of the anodal connecting resistance R88 of diode D2, mu balanced circuit 18, the collector of another termination triode Q7 of resistance R 88, the base stage of triode Q7 connects 57 pin of microprocessor U1 through resistance R 89, the grounded emitter of triode Q7.
Mu balanced circuit 18 comprises resistance R 90, capacitor C 27, capacitor C 28, capacitor C 29, capacitor C 30, capacitor C 31, capacitor C 32, capacitor C 33, diode D5, coil L, voltage stabilizer U14 and pressure regulator U15, the model of voltage stabilizer U14 is LM2576T-5.0, and the model of pressure regulator U15 is LM1117.
Charging circuit 19 comprises resistance R 83, resistance R 84, resistance R 85, resistance R 86, capacitor C 24, capacitor C 25, diode D3, diode D4, triode Q5, lithium battery BT2 and plug connector J14, plug connector J14 is used for connecing external power supply, one termination power of resistance R 86, 59 pin of another termination microprocessor U1 of resistance R 86, the collector of triode Q5, the grounded emitter of triode Q5, the base stage of triode Q5 is through one end of resistance R 84 connecting resistance R83, one end of resistance R 85, the other end ground connection of resistance R 83, the other end of resistance R 85 patches 2 pin of fitting J14, one end of capacitor C 24, one end of capacitor C 25, the positive pole of diode D3, the negative pole of diode D3 connects the positive pole of lithium battery BT2, the positive pole of diode D4, the other end of capacitor C 24, the other end of capacitor C 25, the minus earth of lithium battery BT2, the negative pole of diode D4 connects 12V power supply.
Battery capacity indication circuit 20 comprises resistance R 79, resistance R 80, resistance R 81, resistance R 82, diode D4, triode Q6, the collector of triode Q6 connects 12V power supply, the base stage of triode Q6 connects 60 pin of microprocessor U1 through resistance R 79, the emitter of triode Q6 through one end of resistance R 81 connecting resistance R80, one end of resistance R 82, the other end ground connection of resistance R 82.
As shown in figure 11, GPS and GPRS communication interface circuit 21 comprise single channel current limliting panel switches U13, transceiver U17, resistance R 75 is to resistance R 78, capacitor C 22, capacitor C 23, capacitor C 34 is to capacitor C 37, plug connector J12 and plug connector J13, the model of single channel current limliting panel switches U13 is TPS2041BDBV, the model of transceiver U17 is MAX3232, plug connector J12 is used for connecting GPRS communication module, GPRS communication module adopts the embedded GPRS DTU of LT2302 module, 1 pin of plug connector J12 connects the ON/OFF end of GPRS communication module, 2 pin of plug connector J12 meet the positive source DC+ of GPRS communication module, 3 pin of plug connector J12 meet the power cathode DC-of GPRS communication module, the Transistor-Transistor Logic level serial ports that 4 pin of plug connector J12 connect GPRS communication module receives TR, the Transistor-Transistor Logic level serial ports that 4 pin of plug connector J12 connect GPRS communication module sends TT, what 4 pin of plug connector J12 connect GPRS module is ready to signal LINK, one end of the 1 pin connecting resistance R75 of plug connector J12, 76 pin of microprocessor U1, 4 pin of plug connector J12 connect 78 pin of microprocessor U1, 5 pin of plug connector J12 connect 79 pin of microprocessor U1, 6 pin of plug connector J12 connect 77 pin of microprocessor U1, one end of resistance R 76, another termination power of resistance R 76.
Plug connector J13 is used for connecting GPS communication module, adopt global BR-355 GPS module, 1 pin of plug connector J13 connects the power cathode of GPS communication module, the RS-232 serial ports that 2 pin of plug connector J13 connect GPS communication module sends TX, the RS-232 serial ports that 3 pin of plug connector J13 connect GPS communication module receives RX, 4 pin of plug connector J13 connect the positive source of GPS communication module, 5 pin of plug connector J13 connect the power cathode of GPS communication module, 2 pin of plug connector J13 receive 13 pin of hair device U17, 3 pin of plug connector J13 receive 14 pin of hair device U17, 1 pin of the 4 pin order passage current limliting panel switches U13 of plug connector J13, one end of capacitor C 22, one end of capacitor C 23, the other end of capacitor C 22, the other end ground connection of capacitor C 23, 4 pin of single channel current limliting panel switches U13 connect 85 pin of microprocessor U1, one end of resistance R 77, another termination power of resistance R 77, 11 pin of transceiver U17 connect 80 pin of microprocessor U1, 12 pin of transceiver U17 connect 83 pin of microprocessor U1.
When start, press K switch 2, the 5 pin level of voltage stabilizer U14 are by diode D2, and K switch 2 drags down, voltage stabilizer U14 work output 5V power supply, and through voltage stabilizer U15 output 3.3V power supply, control circuit starts.Control circuit sets high ONOFF_POWER position signal after starting immediately, triode Q7 conducting, and 5 pin that maintain voltage stabilizer U14 by resistance R 88 are low level, keep mu balanced circuit 18 normally to work.In the time of shutdown, press K switch 2, ONOFF_SW signal is through diode D1, K switch 2 step-down level, after detecting, control circuit completes the work such as data preservation, and after upspringing etc. K switch 2, ONOFF_POWER position signal is set low, triode Q7 cut-off, 5 pin of voltage stabilizer U14 uprise level mu balanced circuit 18 and quit work, system cut-off.Charging circuit 19 is realized battery charging indication function, when after plug connector J14 access civil power, triode Q5 conducting Power_SW signal step-down, when triode Q5 cut-off after plug connector J14 power-off, Power_SW signal uprises, and control circuit, by detecting Power_SW signal level, is indicated charged state, diode D3, diode D4 all adopt low pressure drop diode, reduce the loss of power.Battery capacity indication circuit 20 calculates battery remaining power by gathering cell voltage, and while needing to gather battery, control circuit sets high Batter_Power signal level, triode Q6 conducting, and control circuit gathers Batter_AD point voltage by A/D mouth.Control circuit sets low Batter_Power signal level at ordinary times, triode Q6 cut-off, and resistance R 81, resistance R 82 are not shunted, and reduce battery loss.
Control circuit comprises STM32F107 and support device thereof, crystal oscillator X1 is low frequency crystal oscillator, supply the inner RTC circuit working of microprocessor U1 together with lithium battery BT1, for system provides real-time clock, crystal oscillator X2 is that high frequency clock is the work clock of U1, resistance R 1, capacitor C 5 form the electrify restoration circuit of system, resistance R 3, capacitor C 6, K switch 1 form wake-up circuit, when system is during in power saving sleep state, for waken system, the programming that plug connector J0, plug connector J1 and annex thereof are control circuit, debugging interface.
Baroceptor interface circuit 6 is atmosphere pressure sensor interface, soil temperature sensor interface circuit 7 is soil temperature sensor interface, aerial temperature and humidity sensor interface circuitry 8 is aerial temperature and humidity sensor interface, single channel current limliting panel switches U2, resistance R 13, capacitor C 7, the feed circuit of the above three kinds of sensors of capacitor C 8 composition, in the time starting to gather one of them sensor, it is low level that control circuit 1 is put CG3V3_Power signal, single channel current limliting panel switches U2 opens, sensor power supply, start working, after collection completes, to put CG3V3_Power signal be high level to control circuit 1, single channel current limliting panel switches U2 disconnects, sensor quits work, thereby effectively lower power consumption.Baroceptor interface circuit 6 is atmosphere pressure sensor interface, and MS5540C, by I2C bus and microprocessor U1 communication, sends atmospheric pressure digital signal to microprocessor U1.Soil temperature sensor interface circuit 7 is soil temperature sensor interface, adopt DS18B20, by TuWen_DATA mono-line and microprocessor U1 communication, TuWen_Online is sensor line detection signal, at sensor termination power cathode, when after access sensor, TuWen_Online becomes low level, otherwise is high level.Whether microprocessor U1 is by online in line detection circuit detecting sensor.Soil temperature sensor interface circuit 7 is soil temperature sensor interface, adopt SHT11, pass through KongQi_clk, kongQi_DATA two-wire system signal and microprocessor U1 communication, KongQi_Online is sensor line detection signal, at sensor termination power cathode, when after access sensor, KongQi_Online becomes low level, otherwise is high level.Whether microprocessor U1 is through online in line detection circuit detecting sensor.
Air velocity transducer interface circuit 9 is wind speed wind direction sensor interface, optical sensor interface circuit 10 is intensity of illumination sensor interface, soil humidity sensor interface circuit 11 is soil humidity sensor interface, single channel current limliting panel switches U4, resistance R 23, capacitor C 9, the feed circuit of the above three kinds of sensors of capacitor C 10 composition, in the time starting to gather one of them sensor, it is low level that control circuit 1 is put CG5V_Power signal, single channel current limliting panel switches U4 opens, sensor power supply, start working, after collection completes, to put CG5V_Power signal be high level to control circuit 1, single channel current limliting panel switches U4 disconnects, sensor quits work, thereby effectively lower power consumption.Air velocity transducer interface circuit 9 is wind speed wind direction sensor interface, adopt the integrated wind speed wind direction sensor of EC-8SX, sensor signal is by dual power supply conversion transceiver U5 and microprocessor U1 isolation, wind direction signals adopts Gray code, after input microprocessor U1, obtain wind direction angle by decoding, wind velocity signal CP is pulse signal, and microprocessor U1 goes out wind speed by ranging pulse frequency computation part.Feng_Online is sensor line detection signal, and at sensor termination power cathode, when after access sensor, Feng_Online becomes low level, otherwise is high level.Whether microprocessor U1 is through online in line detection circuit detecting sensor.Optical sensor interface circuit 10 is intensity of illumination sensor interface, adopt RY-G type intensity of illumination sensor, send 4-20mA electric current loop signal, resistance R 27, resistance R 28, resistance R 29, resistance R 30 and operational amplifier U6 composition signal conditioning circuit, current signal is converted into the voltage signal of 0-3V, by the A/D translation interface measure signal intensity of microprocessor U1, calculate intensity of illumination.GuagZhao_Online is sensor line detection signal, and at sensor termination power cathode, when after access sensor, GuagZhao_Online becomes low level, otherwise is high level.Whether microprocessor U1 is through online in line detection circuit detecting sensor.Soil humidity sensor interface circuit 11 is soil humidity sensor interface, adopt TDR-3 soil moisture sensor, output 0-2.5V voltage signal, resistance R 32, resistance R 33, resistance R 34, resistance R 35 and operational amplifier U7 composition signal conditioning circuit, output 0-3V voltage signal, by the A/D translation interface measure signal intensity of microprocessor U1, calculate soil moisture content.TuShi_Online is sensor line detection signal, and at sensor termination power cathode, when after access sensor, TuShi_Online becomes low level, otherwise is high level.Whether microprocessor U1 is through online in line detection circuit detecting sensor.
Carbon dioxide sensor interface circuit 12 is by serial ports and microprocessor U1 communication, and microprocessor U1 obtains C0 by serial ports
2concentration.Single channel current limliting panel switches U8, resistance R 36, capacitor C 12, capacitor C 13 form the feed circuit of sensor, and in the time starting pick-up transducers, control circuit 1 is put C0
2_ Power signal is low level, and single channel current limliting panel switches U4 opens, and sensor power supply, starts working, and has gathered rear control circuit 1 and has put C0
2_ Power signal is high level, and single channel current limliting panel switches U8 disconnects, and sensor quits work, thereby effectively lowers power consumption.C0
2_ Online is sensor line detection signal, connects positive source at 4 pin of sensor side J7, when after access sensor, and triode Q1 conducting, C0
2_ Online becomes low level, otherwise triode Q1 cut-off, C0
2_ Online is high level.Whether microprocessor U1 is through online in line detection circuit detecting sensor.
Evaporation sensor interface circuit 13, ZFL1 type evaporator output 0-20mV voltage signal.Operational amplifier U9, operational amplifier U10, resistance R 42, resistance R 43, resistance R 44 form signal conditioning circuit, and output 0-3V voltage signal, by the A/D translation interface measure signal intensity of microprocessor U1, calculates evaporation capacity.Resistance R 40, triode Q2 form feed circuit, and in the time starting pick-up transducers, it is high level that control circuit 1 is put ZhengFa_Power signal, triode Q2 conducting, and sensor power supply, starts working.After collection completes, to put ZhengFa_Power signal be low level to control circuit 1, triode Q2 cut-off, and sensor quits work, thereby effectively lowers power consumption.ZhengFa_Online is sensor line detection signal, and at sensor termination power cathode, when after access sensor, ZhengFa_Online becomes low level, otherwise is high level.Whether microprocessor U1 is through online in line detection circuit detecting sensor.
Rainfall amount sensor interface circuitry 14, rainfall amount sensor adopts RY-YLH02 rainfall amount sensor, output pulse signal, input microprocessor U1 after capacitor C 14, resistance R 47 filtering, microprocessor U1 calculates rainfall amount by ranging pulse frequency meter.
Wireless interface circuit 3 connects wireless sensor node, and wave point adopts to send and receives bifrequency structure, and information sends and takies 433MHz channel, and data receiver takies 315MHz channel.Adopt polling mode to inquire about each sensing data.Shown in wireless transmission interface circuit 15, form wireless transmission interface by resistance R 49, resistance R 50, triode Q3 and 433MHz wireless transmitter module, microprocessor U1 sends modulation intelligence by WuXian_433, after triode Q3 does level conversion, sent by 433MHz wireless sending module.Shown in wireless receiving interface circuit 16, form wireless receiving interface by resistance R 51, resistance R 52, resistance R 53, resistance R 54, triode Q4 and 315MHz wireless receiving module, receiving signal does after level conversion through triode Q4, pass to microprocessor U1, microprocessor U1 demodulating received signal obtains metrical information.The feed circuit of single channel current limliting panel switches U11, resistance R 48, capacitor C 14, capacitor C 15 these interfaces of composition, in the time starting communication, it is low level that control circuit 1 is put WuXian_Power signal, single channel current limliting panel switches U11 opens, and interface power supply, starts working, after communication completes, to put WuXian_Power signal be high level to control circuit 1, single channel current limliting panel switches U11 disconnects, and interface quits work, thereby effectively lowers power consumption.
The wired connection of wired network interface circuit 4 implement devices and Internet network.DM9161AEP is a fully-integrated and meet cost benefit single-chip Fast Ethernet PHY, is a conventional physical layer transceiver.HR911105A is the network socket with networking transformer, utilizes this sets of plan can form reliably, network interface with low cost.
GPRS radio network interface is made up of resistance R 75, resistance R 76 and GPRS communication module, GPRS communication module is by Transistor-Transistor Logic level rs 232 serial interface signal GPRS_RX, GPRS_TX is connected with microprocessor U1, is connected with Internet through GPRS module, realizes long-distance intelligent control and remote data transmission.Microprocessor U1 powers on or power-off by GPRS_OFFON low and high level control GPRS module is set.By the duty of GPRS_LINK signal enquiry module.
GPS interface circuit is made up of resistance R 77, resistance R 78, capacitor C 22, capacitor C 33, single channel current limliting panel switches U13, transceiver U17 and GPS communication module, for the on-site geography information of receiving trap and standard time.Microprocessor U1 receives GPS communication module information by RS-232 interface.Transceiver U17 is RS-232 level shifting circuit.The feed circuit of single channel current limliting panel switches U13, resistance R 77, capacitor C 22, capacitor C 23 these interfaces of composition, in the time starting communication, it is low level that control circuit 1 is put GPS_Power signal, single channel current limliting panel switches U13 opens, GPS communication module is started working, and after communication completes, to put GPS_Power signal be high level to control circuit 1, and single channel current limliting panel switches U13 disconnects, GPS communication module quits work, thereby effectively lowers power consumption.GPS_Online is GPS communication module line detection signal, and at sensor termination power cathode, when after access GPS communication module, GPS_Online becomes low level, otherwise is high level.
Below be only a kind of optimization technique scheme of the present invention, the above circuit of the present invention is not unique, and wherein each circuit also can adopt other forms, as long as can realize its function.
One skilled in the art would recognize that above-mentioned embodiment is exemplary, is in order to make those skilled in the art can better understand content of the present invention, to should not be understood as limiting the scope of the invention.Under the enlightenment of technical solution of the present invention; those skilled in the art can be without creative work; adopt alternate manner to realize object of the present invention; such as the variation of quantity in sensor interface circuitry; and the change of wireless interface circuit etc.; as long as the improvement of doing according to technical solution of the present invention, all fall into protection scope of the present invention.
Claims (7)
1. an agricultural environment information acquisition control device, is characterized in that: described agricultural environment information acquisition control device comprises control circuit (1), sensor interface circuitry (2) and GPS and the GPRS communication interface circuit (21) of electrical connection;
Described control circuit (1) comprises microprocessor U1, shift register U16, microprocessor U1 is STM32F107,94 pin of microprocessor U1 patch fitting J0 through resistance R 4, between 8 pin of microprocessor U1 and 9 pin, meet crystal oscillator X1, between 12 pin of microprocessor U1 and 13 pin, meet crystal oscillator X2, one end of the 14 pin connecting resistance R1 of microprocessor U1, one end of capacitor C 5, another termination power of resistance R 1, the other end ground connection of capacitor C 5;
23 pin of described microprocessor U1 connect wake-up circuit, wake-up circuit comprises resistance R 3, capacitor C 6 and K switch 1, one end, one end of capacitor C 6 and one end of K switch 1 of the 23 pin connecting resistance R3 of microprocessor U1, another termination power of resistance R 3, the other end ground connection of K switch 1, the other end ground connection of capacitor C 6;
1 pin of described shift register U16 connects 63 pin of microprocessor U1, and 2 pin of shift register U16 connect 61 pin of microprocessor U1, and 9 pin of shift register U16 connect 62 pin of microprocessor U1, and shift register U16 is electrically connected with sensor interface circuitry (2).
2. agricultural environment information acquisition control device as claimed in claim 1, is characterized in that: described sensor interface circuitry (2) comprises baroceptor interface circuit (6), soil temperature sensor interface circuit (7), the aerial temperature and humidity sensor interface circuitry (8) of electrical connection.
3. agricultural environment information acquisition control device as claimed in claim 2, it is characterized in that: described baroceptor interface circuit (6) comprises air pressure module sensors U3, resistance R 14, resistance R 15, resistance R 16, resistance R 17, the model of air pressure module sensors U3 is MS5540C, one end of the 1 pin connecting resistance R14 of air pressure module sensors U3, 15 pin of microprocessor U1, another termination power of resistance R 14, one end of the 8 pin connecting resistance R15 of air pressure module sensors U3, 18 pin of microprocessor U1, another termination power of resistance R 15, one end of the 7 pin connecting resistance R16 of air pressure module sensors U3, 17 pin of microprocessor U1, another termination power of resistance R 16, one end of the 6 pin connecting resistance R17 of air pressure module sensors U3, 26 pin of microprocessor U1, another termination power of resistance R 17, 5 pin of air pressure module sensors U3 connect power supply.
4. agricultural environment information acquisition control device as claimed in claim 2, it is characterized in that: described soil temperature sensor interface circuit (7) comprises resistance R 18, resistance R 19 and plug connector J2, plug connector J2 is used for connecting soil temperature sensor, the model of soil temperature sensor is DS18B20, one end of resistance R 18, one termination power of resistance R 19, the other end of resistance R 18 patches 4 pin of fitting J2, 6 pin of shift register U16, 3 pin of plug connector J2 connect power supply, the other end of resistance R 19 patches 2 pin of fitting J2, 2 pin of microprocessor U1, the 1 pin ground connection of plug connector J2.
5. agricultural environment information acquisition control device as claimed in claim 2, it is characterized in that: described aerial temperature and humidity sensor interface circuitry (8) comprises resistance R 20, resistance R 21, resistance R 22 and plug connector J3, plug connector J3 is used for connecting aerial temperature and humidity sensor, the model of aerial temperature and humidity sensor is SHT11, one end of resistance R 20, one end of resistance R 21, one termination power of resistance R 22, the other end of resistance R 20 patches 5 pin of fitting J3, 10 pin of shift register U16, 4 pin of plug connector J3 connect power supply, the other end of resistance R 21 patches 3 pin of fitting J3, 4 pin of microprocessor U1, the other end of resistance R 22 patches 2 pin of fitting J3, 5 pin of microprocessor U1, the 1 pin ground connection of plug connector J3.
6. agricultural environment information acquisition control device as claimed in claim 1, it is characterized in that: described GPS and GPRS communication interface circuit (21) comprise single channel current limliting panel switches U13, transceiver U17, resistance R 75 is to resistance R 78, capacitor C 22, capacitor C 23, capacitor C 34 is to capacitor C 37, plug connector J12 and plug connector J13, the model of single channel current limliting panel switches U13 is TPS2041BDBV, the model of transceiver U17 is MAX3232, plug connector J12 is used for connecting GPRS communication module, GPRS communication module adopts the embedded GPRS DTU of LT2302 module, one end of the 1 pin connecting resistance R75 of plug connector J12, 76 pin of microprocessor U1, 4 pin of plug connector J12 connect 78 pin of microprocessor U1, 5 pin of plug connector J12 connect 79 pin of microprocessor U1, 6 pin of plug connector J12 connect 77 pin of microprocessor U1, one end of resistance R 76, another termination power of resistance R 76.
7. agricultural environment information acquisition control device as claimed in claim 6, it is characterized in that: described plug connector J13 is used for connecting GPS communication module, adopt global BR-355 GPS module, 2 pin of plug connector J13 receive 13 pin of hair device U17, 3 pin of plug connector J13 receive 14 pin of hair device U17, 1 pin of the 4 pin order passage current limliting panel switches U13 of plug connector J13, one end of capacitor C 22, one end of capacitor C 23, the other end of capacitor C 22, the other end ground connection of capacitor C 23, 4 pin of single channel current limliting panel switches U13 connect 85 pin of microprocessor U1, one end of resistance R 77, another termination power of resistance R 77, 11 pin of transceiver U17 connect 80 pin of microprocessor U1, 12 pin of transceiver U17 connect 83 pin of microprocessor U1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410068384.0A CN103926856B (en) | 2014-02-27 | 2014-02-27 | A kind of agricultural environment information gathering control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410068384.0A CN103926856B (en) | 2014-02-27 | 2014-02-27 | A kind of agricultural environment information gathering control device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103926856A true CN103926856A (en) | 2014-07-16 |
| CN103926856B CN103926856B (en) | 2016-05-04 |
Family
ID=51145115
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410068384.0A Expired - Fee Related CN103926856B (en) | 2014-02-27 | 2014-02-27 | A kind of agricultural environment information gathering control device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103926856B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104317337A (en) * | 2014-10-14 | 2015-01-28 | 大连恒扬光电科技有限公司 | Electric control system for measuring temperature and humidity of transformers |
| CN110505565A (en) * | 2018-05-16 | 2019-11-26 | 杨代春 | A kind of mobile environmental detection set with positioning function |
| CN111830884A (en) * | 2020-08-11 | 2020-10-27 | 山西和信基业科技股份有限公司 | Low-power consumption sensor acquisition and fusion terminal |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101290238A (en) * | 2008-06-13 | 2008-10-22 | 南京农业大学 | Agricultural land information monitoring system based on ZigBee network and embedded 3S technology |
| CN101419633A (en) * | 2008-12-12 | 2009-04-29 | 南京农业大学 | Embedded farming and forestry information acquisition and enquiry mobile terminal based on ARM and DSP |
| CN101902618A (en) * | 2010-06-11 | 2010-12-01 | 北京农业信息技术研究中心 | Crop disease and insect information diagnosis system and method |
| CN102507907A (en) * | 2011-11-17 | 2012-06-20 | 安徽农业大学 | Novel portable soil moisture monitoring instrument based on GPS (Global Position System)/GPRS (General Packet Radio Service)/GSM (Global System for Mobile Communications) |
-
2014
- 2014-02-27 CN CN201410068384.0A patent/CN103926856B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101290238A (en) * | 2008-06-13 | 2008-10-22 | 南京农业大学 | Agricultural land information monitoring system based on ZigBee network and embedded 3S technology |
| CN101419633A (en) * | 2008-12-12 | 2009-04-29 | 南京农业大学 | Embedded farming and forestry information acquisition and enquiry mobile terminal based on ARM and DSP |
| CN101902618A (en) * | 2010-06-11 | 2010-12-01 | 北京农业信息技术研究中心 | Crop disease and insect information diagnosis system and method |
| CN102507907A (en) * | 2011-11-17 | 2012-06-20 | 安徽农业大学 | Novel portable soil moisture monitoring instrument based on GPS (Global Position System)/GPRS (General Packet Radio Service)/GSM (Global System for Mobile Communications) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104317337A (en) * | 2014-10-14 | 2015-01-28 | 大连恒扬光电科技有限公司 | Electric control system for measuring temperature and humidity of transformers |
| CN110505565A (en) * | 2018-05-16 | 2019-11-26 | 杨代春 | A kind of mobile environmental detection set with positioning function |
| CN111830884A (en) * | 2020-08-11 | 2020-10-27 | 山西和信基业科技股份有限公司 | Low-power consumption sensor acquisition and fusion terminal |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103926856B (en) | 2016-05-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Gautam et al. | Innovative GSM bluetooth based remote controlled embedded system for irrigation | |
| CN201967144U (en) | Greenhouse wireless remote plant physiological and ecological monitoring system based on ZigBee and 3G (The 3rd Generation Telecommunication) network | |
| CN104280533A (en) | Bluetooth-based soil moisture monitoring sensor | |
| CN205138556U (en) | Agricultural thing networking monitoring system based on zigBee | |
| CN103926856B (en) | A kind of agricultural environment information gathering control device | |
| CN103873563B (en) | A kind of agricultural environment information gathering control device with network interface circuit | |
| CN203799241U (en) | Cloud platform-based building monitoring system | |
| CN103872892B (en) | A kind of agricultural environment information gathering control device power circuit | |
| CN203838505U (en) | Agricultural environment information acquisition control device with evaporation capacity sensor interface circuit | |
| CN203838506U (en) | Agricultural environment information control device with carbon dioxide sensor interface circuit | |
| CN203838504U (en) | Agricultural environment information acquisition control device with wind speed sensor interface circuit | |
| CN203840198U (en) | Power supply circuit for agricultural environment information acquisition control device | |
| CN202395897U (en) | Remote monitoring system of plant growing information | |
| CN203310441U (en) | Agricultural Internet of things acquisition apparatus | |
| CN107765345A (en) | A kind of orchard weather information remote monitoring device and system | |
| CN110488900B (en) | Intelligent accurate agricultural integrated control system based on WSN | |
| CN103926858A (en) | Agricultural environment information acquisition and control device with wind speed sensor interface circuit | |
| CN103925932A (en) | Agricultural environment information collection and control device with sensor interface circuit | |
| CN103926886A (en) | Agricultural environment information acquisition and control device with evaporation capacity sensor interface circuit | |
| CN204270483U (en) | A kind of intensive warren wireless sensor network monitoring system | |
| CN206710926U (en) | A kind of floriculture greenhouse monitoring system | |
| CN103926857A (en) | Agricultural environment information collection and control device with wireless interface circuit | |
| CN206684328U (en) | Wisdom agricultural meteorological station | |
| CN103869733A (en) | Agricultural environment information control device with carbon dioxide sensor interface circuit | |
| CN213715761U (en) | Farmland environment remote measuring device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| 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: 20160504 Termination date: 20210227 |