CN201607818U

CN201607818U - Soil multi-parameter wireless acquisition station

Info

Publication number: CN201607818U
Application number: CN2010201462058U
Authority: CN
Inventors: 李道亮; 闫明霞; 台海江; 马道坤; 丁启胜
Original assignee: China Agricultural University
Current assignee: China Agricultural University
Priority date: 2010-03-29
Filing date: 2010-03-29
Publication date: 2010-10-13
Anticipated expiration: 2020-03-29

Abstract

The utility model relates to a soil multi-parameter wireless acquisition station, which realizes real-time dynamic acquisition and wireless transmission of soil multi-parameters. The soil multi-parameter wireless acquisition station comprises a solar panel (1), a storage battery (12), a power management module (13), a groundwater level intelligent sensor (3), a pH intelligent sensor (4), a water conductivity intelligent sensor (5) and a soil three-parameter sensor (6), an RS485 interface, a wireless controller (14) and an external RAM (15). The groundwater level intelligent sensor (3), the pH intelligent sensor (4), the water conductivity intelligent sensor (5) and the soil three-parameter sensor (6) are respectively connected with interfaces (7, 8, 9, 10) of sensor modules of the sensor unit by corresponding terminals (3', 4', 5', 6').

Description

A kind of soil multiparameter wireless acquisition station

Technical field

The utility model relates to a kind of acquisition station that is used for the multiparameter soil index of soil three parameters and water quality is carried out Real-time and Dynamic and regional wireless transmission.

Background technology

The consolidation quality mainly contains parameters such as soil water potential, soil moisture, the soil moisture, soil total salt content, atmospheric temperature, relative humidity of atomsphere, evaporation capacity, quantity of precipitation, electric conductivity value, conductivity, quantity of precipitation, evaporation capacity, underground water table, water quality sensor with ecological precisely monitoring index.Wherein soil three parameters objectively respond soil information, and soil moisture, soil conductivity, water quality parameter are the important evaluation indexes of soil moisture holding capacity in the consolidation process, irrigation effect and soil pollution degree.In the open air, consolidation quality and ecological information under the environment such as field moves/and the wireless acquisition device under the stationary state mainly realizes the unification of microminiaturization, low cost, low-power and high-performance, easy care, makes suitable special environmental conditions.

Have some at present and relate to the patent that soil parameters is gathered, for example, publication number is the Chinese patent " intelligent wireless soil moisture automatic tester " of CN201034964, current collection holds sensor technology, microcontroller embeddedly relates to, data communication and computer network are the intelligent soil moisture detection instrument of one, can in time, accurately, systematically detect damage caused by a drought and change, be mainly used in the damage caused by a drought monitoring.Other parameters of soil, water quality etc. are not related to.In addition, publication number is the Chinese patent " a kind of orchard environment wireless sensor network monitoring system " of CN201281612, by wireless transmission, network route communication the information transmission of aerial temperature and humidity sensor, optical sensor, soil moisture sensor and moisture transducer is arrived aggregation node, and realize solar powered, this system can realize the transmission of orchard environmental data, but sensor is not realized intellectuality.

Summary of the invention

(1) technical matters that will solve

The technical problems to be solved in the utility model is: realize soil moisture, conductivity, temperature, and the Real-time and Dynamic collection and the wireless transmission of multiparameter such as underground water table, PH, water electric conductivity, support the intervention of the standard intelligence sensor of IEEE1451STIM design, and can utilize sun power to realize intelligent power supply.

(2) technical scheme

In order to solve the problems of the technologies described above, the utility model adopts following technical scheme.

The utility model provides a kind of soil multiparameter wireless acquisition station, comprise sensor unit and Information Monitoring processing unit, wherein said sensor unit comprises underground water table intelligence sensor (3), PH intelligence sensor (4), water electric conductivity intelligent sensor (5) and soil three parameter sensors (6) and four intelligent transducer interface module STIM (1,2,3,4), described underground water table intelligence sensor (3), PH intelligence sensor (4), water electric conductivity intelligent sensor (5) forms with four described intelligent transducer interface module STIM with soil three parameter sensors (6) and is connected one to one; Described Information Monitoring processing unit comprises wireless controller (14) and external RAM (15); The STIM of described sensor unit has the RS485 bus interface and is connected by the RS485 bus with the Information Monitoring processing unit.

Preferably, described soil multiparameter wireless acquisition station also comprises power supply module, described power supply module comprises solar panels (1), accumulator (12) and power management module (13), described solar panels (1) are connected with described power management module (13) respectively with described accumulator (12), and described power management module (13) connects four described intelligent transducer interface module STIM and described wireless controller (14) respectively.

Preferably, described underground water table intelligence sensor (3), PH intelligence sensor (4), water electric conductivity intelligent sensor (5), soil three parameter sensors (6), sensor signal conditioning circuit and wireless controller (14) all adopt the 3.3V power supply.

Preferably, described wireless controller (14) adopts the JN5121 chip.

Preferably, described wireless controller (14) has temperature sensor.

(3) beneficial effect

Compare with other soil parameters harvesters, this acquisition station measuring accuracy is higher, compatible good, and cost reduces by 50%, and the wireless monitoring device average power is less than 10mW, and the single-point transmission range is greater than 500 meters under the field condition.

Description of drawings

Fig. 1 is the surface structure synoptic diagram at the utility model soil multi-parameters sampling station;

Fig. 2 is the bottom front elevational schematic at the utility model soil multi-parameters sampling station;

Fig. 3 is the sensor synoptic diagram at the utility model soil multi-parameters sampling station;

Fig. 4 is the data acquisition structured flowchart at the utility model soil multi-parameters sampling station.

Embodiment

The soil multiparameter wireless acquisition station that the utility model proposes is described in detail as follows in conjunction with the accompanying drawings and embodiments.

As shown in figs. 1 and 4, this soil multiparameter wireless acquisition station comprise power supply module adopt sensor unit and the collection information process unit 2, this power supply module comprises solar panels 1, accumulator 12 and power management module 13, this sensor unit comprises underground water table intelligence sensor 3, PH intelligence sensor 4, water electric conductivity intelligent sensor 5 and soil three parameter sensors 6 and four intelligent transducer interface module STIM1, STIM2, STIM3 and STIM4, and Information Monitoring processing unit 2 comprises JN5121 wireless controller 14 and external RAM 15.

Wherein, underground water table intelligence sensor 3, PH intelligence sensor 4, water electric conductivity intelligent sensor 5 and soil three parameter sensors 6 are connected four intelligent transducer interface module STIM1, STIM2, STIM3 and STIM4 respectively.Power management module 13 connects solar panels 1 and accumulator 12 respectively, power management module 13 connects power supply control and four intelligent transducer interface module STIM1, STIM2, STIM3 and STIM4 of wireless controller 14 respectively, be used to realize the solar energy intelligent power supply, for underground water table intelligence sensor 3, PH intelligence sensor 4, water electric conductivity intelligent sensor 5 and soil three parameter sensors 6 provide driving voltage, for the microprocessor of sensor signal conditioning circuit, wireless controller 14 provides power supply.Underground water table intelligence sensor 3, PH intelligence sensor 4, water electric conductivity intelligent sensor 5, soil three parameter sensors 6, sensor signal conditioning circuit and wireless controller 14 all adopt the 3.3V power supply; Wireless controller 14 adopts the JN5121 chip, can realize the functions such as self-identifying, self-correcting and self diagnosis of sensor.

Shown in Fig. 2 and 3, terminal 3`, 4`, 5`, 6` that

sensor

3,4,5,6 passes through respectively separately are connected one to one with interface 7,8,9,10 formation of intelligent transducer interface module STIM1, STIM2, STIM3 and STIM4, in addition, sensor unit also has spare interface 11.

The course of work of the utility model soil multiparameter wireless acquisition station is as follows:

Sensor

3,4,5 and 6 passes to intelligent transducer interface module STIM1, STIM2, STIM3 and STIM4 with the soil information of surveying respectively, and the STIM module has the RS485 bus, passes to the UART of wireless controller 14 then by RS485.Stored in the external RAM 15 and comprised sensor type, the sensor information of sensor performance and sensor states, after the microprocessor read sensor information of wireless controller 14, can discern coupled sensor automatically, realize the plug and play of sensor, and wireless controller 14 has temperature sensor, stored the rectification building-out parameter of each sensor and temperature sensor in the external RAM 15, wireless controller 14 automatic identification sensors, and after finding working sensor state generation deviation, by convergence terminal input corrective command, wireless controller 14 calls the rectification building-out parameter list automatically, and each sensor is proofreaied and correct.

Above embodiment only is used to illustrate the utility model; and be not to restriction of the present utility model; the those of ordinary skill in relevant technologies field; under the situation that does not break away from spirit and scope of the present utility model; can also make various variations and modification; therefore all technical schemes that are equal to also belong to category of the present utility model, and scope of patent protection of the present utility model should be defined by the claims.

Claims

1. soil multiparameter wireless acquisition station, it is characterized in that, described soil multiparameter wireless acquisition station comprises sensor unit and Information Monitoring processing unit, wherein said sensor unit comprises underground water table intelligence sensor (3), PH intelligence sensor (4), water electric conductivity intelligent sensor (5) and soil three parameter sensors (6) and four intelligent transducer interface module STIM1,2,3,4, described underground water table intelligence sensor (3), PH intelligence sensor (4), water electric conductivity intelligent sensor (5) and soil three parameter sensors (6) and four described intelligent transducer interface module STIM1,2,3,4 form connection one to one; Described Information Monitoring processing unit comprises wireless controller (14) and external RAM (15); Described sensor unit is connected by the RS485 bus with the Information Monitoring processing unit, and described wireless controller (14) is connected with described external RAM (15).

2. soil multiparameter wireless acquisition station as claimed in claim 1, wherein, described soil multiparameter wireless acquisition station also comprises power supply module, described power supply module comprises solar panels (1) and power management module (13), described solar panels (1) are connected with described power management module (13), and described power management module (13) connects four described intelligent transducer interface module STIM and described wireless controller (14) respectively.

3. soil multiparameter wireless acquisition station as claimed in claim 2, wherein, described power supply module also comprises the accumulator (12) that is connected with described power management module (13).

4. as claim 2 or 3 described soil multiparameter wireless acquisition stations, wherein, described underground water table intelligence sensor (3), PH intelligence sensor (4), water electric conductivity intelligent sensor (5), soil three parameter sensors (6), sensor signal conditioning circuit and wireless controller (14) all adopt the 3.3V power supply.

5. soil multiparameter wireless acquisition station as claimed in claim 1, wherein, described wireless controller (14) adopts the JN5121 chip.

6. as claim 1 or 5 described soil multiparameter wireless acquisition stations, wherein, described wireless controller (14) has temperature sensor.