CN207248238U - Portable agricultural environment of internet of things detection terminal - Google Patents

Abstract

The utility model is for shortcomings and deficiencies existing for existing product and technology, using embedded system, wireless communication, illumination, humiture, carbon dioxide, dust sensor and the harmful gas sensor of independent research module etc., a portable agriculture environment of internet of things detection terminal is devised.The detection terminal uses modular construction, can carry out different sensor combinations, can detect the common agricultural environment parameter indexes of the overwhelming majority at the same time, and with long lifespan, price is low, can report the advantages such as testing result on line.

Description

Portable agricultural environment of internet of things detection terminal

Technical field

Agriculture Internet of Things is the utility model is related to apply and agricultural environment detection field, specifically a kind of portable agriculture thing Networked environment detection terminal.

Background technology

Field is especially cultivated in farming and animal husbandry, it usually needs the environmental index and two such as detection light photograph, humiture, oxygen content The concentration of the pernicious gases such as carbonoxide, dust, ammonia, hydrogen sulfide, also needs to these detection data Macro or mass analysis, with section sometimes Instruct agriculture-stock production movable.In the prior art, for farming and animal husbandry environment measuring equipment there are four aspect the defects of And deficiency：First, existing detection device is mostly simple function, when needing to detect a variety of environmental index at the same time, generally require to make With multiple detection devices, many inconvenient and very high use cost is brought to user；Second, the achievement data of detection cannot be certainly It is dynamic to collect and analyze, it can only immediately detect and manually collect；Third, the equipment of the detection pernicious gas such as ammonia and hydrogen sulfide is often Using electrochemical sensor, this sensor price is generally in hundreds of members to thousands of members, and service life was less than 1 year：Fourth, When carrying out environment measuring, it is impossible to while additional and reporting position information.

In short, existing farming and animal husbandry environment measuring equipment in technology and function also there are many defects and deficiency, to agriculture Animal husbandry environmental monitoring work brings inconvenience and higher use cost.Therefore, research and develop a multiple functions, it is easy to carry, Can determine that positional information, long lifespan, price are low, can upload online and combined data and have big data support environment measuring equipment Tool is of great significance.

The content of the invention

For shortcomings and deficiencies existing for existing product and technology, the utility model using embedded system, wireless communication, Satellite positioning, multiple sensors and liquid crystal display etc., devise a portable agriculture environment of internet of things monitoring terminal.Should Detection terminal can detect almost all of agricultural environment parameter at the same time, and with long lifespan, price is low, can report online The advantages such as testing result.

The technical solution of the utility model is：Passed by illumination, humiture, carbon dioxide, dust, ammonia, hydrogen sulfide etc. Sensor detects various environmental parameters, and testing result is sent to central processing unit, central processing by numeral or analog signal After device receives the signal that sensor transmission comes, intuitively readable amount is reduced into by operational analysis and is shown on liquid crystal display Come, testing result can be uploaded to big data by upload operation supports system, using satellite positioning, can also upload number According to middle additional location information.The composition and principle of each several part are as follows：

Power pack：Be made of rechargeable lithium battery and regulator circuit, when lithium battery full of piezoelectric voltage reach highest with And be discharged to voltage it is minimum when, regulator circuit ensures to give the circuit such as each sensor, central processing unit respectively with stable voltage Voltage needed for providing, electricity are shown by the way that how much colors different LED represents the remaining electricity of lithium battery.

Humiture and illumination detection part：It is made of humiture and optical sensor and corresponding peripheral circuit, it is warm and humid Degree sensor is converted into the change of air themperature and relative humidity the electric signal of respective change rule, and optical sensor is illumination The strong and weak change of degree is reflected with electric signal, at the analog level signal that peripheral circuit exports humiture and optical sensor Manage and be converted into digital signal and be sent to central processing unit.

Carbon dioxide and dust detection part：It is made of carbon dioxide, dust sensor and peripheral circuit, carbon dioxide passes Sensor is responsible for detecting the levels of Carbon Dioxide in Air, and the quality that dust sensor detects suspended particulate substance in air is dense Degree, the result that peripheral circuit is responsible for detecting these sensors are sent to central processing unit with digital signal.

Ammonia and sulfurated hydrogen detection part：Ammonia and hydrogen sulfide are the pernicious gases being widely present in farm's house, right Livestock and poultry cultivation and food security form very big harm.In the prior art, commonly used to detect harmful gas such as ammonia and hydrogen sulfide The sensor of body mainly has two classes：The first kind is electrochemical sensor, and the principle of this sensor is by being sent out with tested gas It is biochemical react simultaneously produce the electric signal directly proportional to gas concentration to detect the concentration of pernicious gas, his electric signal output with The concentration of tested gas is directly proportional, so the accuracy of detection is higher, may be used as quantitative analysis.But electrochemical sensor Deadly defect is expensive, and the service life is very short, often less than 1 year；Second class is semiconductor gas sensor, this one kind sensing Device is to cause the conductivity of sensing element to change come work in the redox reaction of semiconductor surface using detected gas Make.The advantages of semiconductor gas sensor is that long lifespan, price be low, high sensitivity, but shortcoming be he electric signal it is defeated Go out and gas concentration is in non-linear relation and dispersiveness is big, the rule that does not determine, can only generally be used as qualitative analysis.To understand Certainly price and the problem in service life, the utility model solve the problem of quantitative detection using the sensor module of independent research, i.e., Using the sensor for possessing long lifespan and the low feature of price, by compensating the analysis and correction of circuit for rectifying and operation program, make Substantially stationary functional relation is presented with gas concentration in measurement result, so as to solve the difficulty quantitatively detected with non-electrochemical sensor Topic.

Display and human-computer interaction part：It is made of liquid crystal display and touch-screen, central processing unit detects sensor Data analyzed and processed after shown on liquid crystal display, can be selected by touch-screen in different detection and display Hold.

Central processing unit and wireless communication section：It is made of embedded system and communication module, the task of embedded system Be analysis calculate sensor transmission detection data, after operational analysis with can reading mode show on a display screen.Nothing Line communication module is to be reported to big data to support system to carry out comprehensive analysis the testing result that embedded system is sent.

Satellite positioning part：Using big-dipper satellite positioning or GPS, the specific coordinate of test position is determined, and position is believed Breath is attached in testing result.

Knowledge treasured book：The basic knowledge consulted in terms of farm gives up related environmental index requirement and cultivation can be clicked on, User is helped preferably to carry out cultivation work

Designed more than, portable agriculture environment of internet of things monitoring terminal described in the utility model has fairly obvious Technology and functionality advantage：When it is powerful, easy to use, aerial temperature and humidity, intensity of illumination and titanium dioxide can be detected at the same time The concentration of the pernicious gases such as carbon, dust, ammonia, hydrogen sulfide and harmful substance；Second, long lifespan price is low, service life is reachable 5-10 years, half of the price not as good as simple function electrochemistry detecting apparatus；Third, having big data to support system, extending makes With scope and function, testing number can also be analyzed according to real-time report；Fourth, can be with additional location information, especially in testing result It is adapted to environmental protection and atmospheric analysis.

Brief description of the drawings

The Figure of description for forming the application part is used to provide a further understanding of the present invention, this practicality is new The schematic description and description of type is used to explain the utility model, does not form the improper restriction to the utility model. In attached drawing：

Fig. 1 shows the circuit compositional block diagram of portable agriculture environment of internet of things monitoring terminal described in the utility model；

Wherein, above-mentioned attached drawing is marked including the following drawings：

1st, central processing unit；2nd, illumination detection unit；3rd, Temperature and Humidity unit；4th, carbon dioxide detection unit；5th, powder Dirt detection unit；6th, ammonia detection unit；7th, sulfurated hydrogen detection unit；8th, satellite positioning unit；9th, wireless communication unit；10、 Human-computer interaction and display unit；11st, power supply unit.

Embodiment

The utility model is further described with reference to the accompanying drawings and embodiments.

Fig. 1 is the circuit compositional block diagram of portable agriculture environment of internet of things detection terminal described in the utility model, illumination Detection unit 2, Temperature and Humidity unit 3, carbon dioxide detection unit 4, dust detection unit 5, ammonia detection unit 6, vulcanization The signal output of the grade sensor of hydrogen detection unit 7 is connected with the digital input port of central processing unit respectively, and liquid crystal display, lead to Letter unit, satellite positioning unit etc. be connecteds with the serial ports of central processing unit respectively, and power supply provides required to unit respectively Burning voltage.

Illumination detection unit：Using BH1750FVI sensor chips, detectable light shines 0~65535LUX of data area, passes The direct output digit signals of 16bitAD converters built in sensor, central processing unit is sent by peripheral circuit by digital signal.

Temperature and Humidity unit：Using SHT30 Temperature Humidity Sensor chips, moisture measurement 0~100%RH of scope, measurement Precision reaches ± 3%RH；Temperature measurement range -40~125 DEG C, reachable ± 0.3 DEG C of measurement accuracy.Detection signal is connect by I2C Mouth is conveyed to central processing unit.

Carbon dioxide detection unit：The carbon dioxide in air is detected using non-dispersive infrared principle, detects model 0~5000ppm is enclosed, will detect signal by serial ports transmits central processing unit.

Dust detection unit：The suspended particulate in air is detected using laser dust sensor, minimum differentiates 0.3 μ of particle diameter M, can detect 0.3~1.0 μm of scope；1.0~2.5 μm；2.5~10 μm.

Ammonia, hydrogen sulfide pernicious gas detection unit：By the sensor module of independent research, solves electrochemical sensing The defects of device short life price height and semiconductor transducer are unable to quantitative analysis, is corrected by the analysis of compensation circuit and data, Make to meet fixed functional relation between the concentration of the testing result and pernicious gas finally shown.

Satellite positioning, communication unit：Using ripe satellite positioning module and wireless communication module, positional information is added In testing result, large data center is upload the data to by wireless communication.

The utility model is generally relatively low also directed to cultivation user's educational level, the present situation of scientific culture knowledge scarcity, design One knowledge treasured book module, user can check this environmental index when detecting a certain environmental index with point touching screen Safety index and exceeded harm, the scientific knowledge in terms of can also consulting in relation to cultivation.

It is last it should be noted that：Above-mentioned provided implementation and embodiment are only intended to saying to technical solution It is bright, it is impossible to all to utilize technical solution described in the utility model, the implementation and reality for the limitation to rights protection scope Apply the principle of example and technical characteristic and the equivalent substitution that carries out and improve etc., should be included in the scope of protection of the utility model it It is interior.

Claims (7)

1. a kind of portable agriculture environment of internet of things detection terminal, including central processor unit (1), intensity of illumination detection unit (2), Temperature and Humidity unit (3), carbon dioxide detection unit (4), dust detection unit (5), man-machine interaction unit (10), confession Electric unit (11), it is characterized in that ammonia detection unit (6) and sulfurated hydrogen detection unit (7) are further included, the ammonia and hydrogen sulfide Detection unit includes non-electrochemical sensor and compensation circuit for rectifying, and compensation circuit for rectifying is converted into nonlinear object linear defeated Go out.

2. portable agriculture environment of internet of things detection terminal according to claim 1, it is characterized in that：The non-electrochemical sensing Device refers to one kind of semiconductor transducer, solid electrolyte sensor, planar-type semiconductor sensor and other sensors.

3. portable agriculture environment of internet of things detection terminal according to claim 1, it is characterized in that：The compensation circuit for rectifying Refer to temperature-compensating, signal compensation and non-linear conversion circuit.

4. portable agriculture environment of internet of things detection terminal according to claim 1, it is characterized in that：The ammonia detection unit (6) and sulfurated hydrogen detection unit (7) is modular organization, can easily be changed to other gas sensors according to being actually needed Module.

5. portable agriculture environment of internet of things detection terminal according to claim 1, it is characterized in that：Further include satellite positioning system System, global position system can be attached to positional information in testing result.

6. portable agriculture environment of internet of things detection terminal according to claim 1, it is characterized in that：Further include wireless communication system System, wireless communication system can upload testing result in data center or mobile phone and computer, can also control environmental unit work Make.

7. portable agriculture environment of internet of things detection terminal according to claim 1, it is characterized in that：Further include agricultural knowledge treasured Allusion quotation, can consult related Environmental security index and farming and animal husbandry scientific knowledge.