CN103471996B - Multifunction soil nutrient device for fast detecting based on Halogen light combined light source - Google Patents

Abstract

The invention discloses multifunction soil nutrient device for fast detecting based on Halogen light combined light source, it is made up of three parts: detection module, microprocessor, GPS module, relates to power module, Voltage stabilizing module, sample block, detection module, display apparatus module, GPS module, on-line module, processor module and combination of light sources mode and structure design.This soil nutrient detection device microprocessor uses embedded board computer, and speed is fast, internal memory is big, rich interface, and power supply is simple.Detection module uses USB data line from microprocessor power supply.This apparatus structure is compact, be easy to move and carry, good stability, can analyze multiple soil nutrient (nitrogen, phosphorus, potassium, organic matter) index simultaneously, and read whole world latitude coordinates real-time positioning with GPS function is convenient.

Description

Multifunction soil nutrient device for fast detecting based on Halogen light combined light source

Technical field

The present invention relates to a kind of soil nutrient detection device, particularly relate to a kind of based on Halogen light group Close the multifunction soil nutrient device for fast detecting of light source.

Background technology

Soil nutrient is to be supplied to the needed nutrient of plant growing by soil, and it is reflection soil The important indicator of earth fertility.The nutrient information understanding soil in real time is the basic courses department of Digital Agriculture / mono-, significant to instructing agricultural sciences to produce.Wherein, soil nutrient information master The nitrogen content of soil to be referred to, potassium content, phosphorus content, the content of organic matter, electrical conductivity, humidity Deng.

It is excellent that near infrared spectroscopy has simplicity, quick, low cost and simultaneous determination of multiponents etc. Point is subject to people's attention.In detection, result is had a very big impact by the design of light source, part Patent and product do not have special voltage stabilizing power supplying circuit, by the factor such as voltage pulsation, light source ages Have a strong impact on.Additionally, the combination of light source and structure design impact are the biggest, design unreasonable Being readily detected the most useless veiling glare, accuracy of detection is difficult to ensure that.

At present, the patent of near-infrared soil nutrient information both domestic and external test device and product, very Be all based on more microprocessor MSP430 series, the most rudimentary Single Chip Microcomputer (SCM) system, it Crystal oscillator frequency low, arithmetic speed is slow, and data and program internal memory are little, are not suitable for spectroscopic data High-volume analysis, it is difficult to realize simultaneously quickly detecting soil nutrient information.The most also The most single, it is difficult to analyze multiple soil nutrient simultaneously.And great majority all do not have positioning function, When the accurate operation of Digital Agriculture, it is necessary to be furnished with GPS position finder, use inconvenience, It is difficult to the real-time detection in field.

Summary of the invention

In order to overcome device light source design in technical background unreasonable, processor speed is slow, storage Program and data are few, test event is single and the problem that can not position, the invention provides one With the multiple soil nutrient device for fast detecting simultaneously of GPS, use the present invention can meet essence The requirement of quasi-operation.

The present invention is achieved in that by detection module, computer module, GPS module group Become；It is characterized in that detection module connects computer module, computer module connects GPS mould Block.Described detection module includes detection module cutting ferrule, light source arrangement, Halogen light, signal Receptor and linear optical filter, quartz cup and detection module are connected to one by detection module cutting ferrule Rising, the lateral symmetry of described light source arrangement connects two Halogen lights, at light source arrangement Underface be connected with signal receiver, signal receiver connects linear optical filter, wherein: detection 2 Halogen lights in module are arranged symmetrically with, with a vertical 30 ° ± 2 ° angles, reflection The tapering of the cone-shaped inner hole of light is 8 °；Detection module uses USB to power.Described computer Module includes power module, Voltage stabilizing module, on-line module, mainboard, display module；Described master Plate connects on-line module, Voltage stabilizing module and display module respectively, and Voltage stabilizing module connects power module； Wherein: mainboard uses embedded board computer PCM9361, with the DDR2 internal memory of 1GB With 8G hard disk, 2 SATA interface, 2 RS232 interfaces, 3 USB 2.0 interfaces. Described GPS module is Garman GPS25LP；

Power module is made up of 220V Alternating Current Power Supply and 12V lithium battery, be responsible for utilizing alternating current or Accumulator is powered to each parts of device, and lithium battery can pass through 220V alternating current charging；Surely Die block mainly makes supply voltage stable, it is ensured that microprocessor runnability is stable；Sample mold Block uses quartz cup sample to reduce interference；Detector comprises 2 Halogen lights be arranged symmetrically with, With a vertical 30 ° (error can be in the range of 2 °), the cone of the cone-shaped inner hole of reflection light Degree is 8 °；Detection module uses USB to power, and can launch the continuous spectrum of 950-1650nm, Analog digital conversion 16, minimum integration time 100 microsecond, resolution is 12.5nm, efficiently sampling Region is 2x4mm；Display apparatus module uses touch screen can realize human computer conversation；GPS module Use Garman GPS25LP；On-line module uses wireless Internet card；Processor module uses Embedded board computer, with the DDR2 internal memory of 1GB, 8G hard disk, 2 SATA interface, 2 RS232 interfaces, 3 USB 2.0 interfaces；Display module uses 8 800*600 resolution Touch screen displays.

Spectrum data gathering module realizes the collection of soil spectrum data；Data analysis module realizes To spectroscopic data pretreatment, model, predict, last soil nutrient content information.

The present invention, compared with technical background, has the beneficial effect that

(1) in detection module, 2 Halogen lights are arranged symmetrically with, and with a vertical 30 °, (error can With in the range of 2 °), the tapering of the cone-shaped inner hole of reflection light is 8 °, is avoided that most Veiling glare and other interference light, it is ensured that the accuracy of detection.

(2) this soil nutrient detection device is its micro-place from the different of similar product maximum Reason device and detection module, microprocessor uses that embedded board computer speed is fast, internal memory big, connects Mouth is abundant, by 220V Alternating Current Power Supply or 12V lithium battery power supply.Detection module uses usb data Line is from microprocessor power supply and light stability.

(3) this soil nutrient structure of the detecting device is compact, be easy to move and carry, response speed Hurry up, memory capacity is big, good stability, can analyze multiple soil nutrient index simultaneously, and carry There is GPS function convenient reading whole world latitude coordinates real-time positioning.

Accompanying drawing illustrates:

Fig. 1 is circuit connection diagram of the present invention；

Fig. 2 is 12V mu balanced circuit figure；

Fig. 3 is the population structure schematic diagram of the present invention；

Fig. 4 is that the present invention fills sample adnexa partial view；

Fig. 5 is detection structure light source arrangement；

Fig. 6 is the work process flow chart of the present invention.

Detailed description of the invention

Below in conjunction with the accompanying drawings to being embodied as describing in further detail.

As shown in Fig. 1, Fig. 4, Fig. 5 and Fig. 6, the present invention includes quartz cup (1), soil-like Product (2), detection module (3), USB data line (4), radiator fan (5), negative line (6), Electrode line (7), Voltage stabilizing module (8), negative line (9), electrode line (10), power module (11), GPS module (12), data wire (13), on-line module (14), mainboard (15), Data wire one (16), display module (17), data wire two (18), sample detection groove (19), On and off switch (20), cabinet (21), USB2.0 interface (22), USB2.0 interface (23), Detection module cutting ferrule (24), light source arrangement (25), Halogen light (26), signal receive Device (27) and linear optical filter (28), described mainboard mainboard (15) respectively is respectively by number According to line (16), (18), (13), (4) corresponding connect display module (17), on-line module (14), GPS module (12), detection module (3) and on-line module (14), described mainboard (15) Connecting Voltage stabilizing module also by positive and negative polar curve (6), (7), described Voltage stabilizing module (8) leads to Cross positive and negative polar curve (9), (10) connect power module (11), described detection module (3) On be connected with quartz cup (1), be placed with pedotheque (2) in quartz cup (1).

As shown in Figure 6, for realizing purpose, the workflow that the present invention uses is as follows: power-on, Entrance system；Open detection module；Soil sample pedotheque is put into quartz cup；Use detection Module gathers spectroscopic data；Utilize software that data are carried out pretreatment；Import nutrient model prediction Soil nutrient content；Result is shown on screen；Use network and correlation technique people if desired Member's exchange.

As it is shown in figure 1, soil nutrient tester is mainly by power module, Voltage stabilizing module, sample Module, detection module, display module, GPS module, on-line module, processor module form. Wherein: power module (11) is made up of 220V Alternating Current Power Supply and 12V lithium battery, it is responsible for utilization Alternating current or accumulator are powered to each parts of device, and lithium battery can pass through 220V alternating current Charging；Power supply mainly supplies mainboard (15) and radiator fan (5) after Voltage stabilizing module (8)； Sample block includes quartz cup (1) and pedotheque (2)；Detection module (3) sends Light source is after sample reflects and receives signal, then delivers to mainboard (15) by USB line (4) Middle storage and analysis；GPS module (12) is connected with mainboard (15) by data wire (13), Read geographical location information and preserve；On-line module (14) passes through USB2.0 interface (22) It is connected with mainboard (15)；Display module (17) passes through data wire (16), data wire (18) It is connected with mainboard (15), it is achieved human computer conversation.

As in figure 2 it is shown, be the circuit diagram of 12V mu balanced circuit.

As it is shown on figure 3, be the cabinet schematic diagram of apparatus structure, one above cabinet (21), is had to show Display screen (17) and a sample detection groove (19)；Cabinet side have on and off switch (20), USB interface (22) and USB interface (23).

As shown in Figure 4, it is the detailed structure view of detection groove, cabinet (21) has detection groove (19) For placing the quartzy cup (1) equipped with pedotheque (2)；Detection module cutting ferrule (24) Connecting mutually with cabinet (21), detection module (3) is fixed by cutting ferrule.

As it is shown in figure 5, be detection structure light source arrangement.Halogen light (26) sends light source, Through sample block be reflected through light source arrangement (25) after, by signal receiver (27) Receiving, then by linear optical filter (28), then shifting circuit processes.

Claims (3)

1. a multifunction soil nutrient device for fast detecting based on Halogen light combined light source, Being made up of detection module, computer module, GPS module, described detection module connects computer Module, computer module connects GPS module, and described detection module includes detection module cutting ferrule (24), light source arrangement (25), Halogen light (26), signal receiver (27) and line Property optical filter (28), detection module cutting ferrule (24) is by quartz cup (1) and detection module (3) Linking together, detection module (3) uses USB to power, it is characterised in that: described light source The lateral symmetry of arrangement (25) connects two Halogen lights (26), at light source arrangement (25) underface is connected with signal receiver (27), and signal receiver (27) connects linear Optical filter (28), 2 Halogen lights in detection module (3) are arranged symmetrically with, with vertical direction Becoming 30 ° ± 2 ° angles, the tapering of the cone-shaped inner hole of reflection light is 8 °.

The most according to claim 1, multifunction soil nutrient based on Halogen light combined light source is fast Speed detector, it is characterised in that: described computer module includes power module (11), steady Die block (8), on-line module (14), mainboard (15), display module (17), described master Plate (15) connects on-line module (14), Voltage stabilizing module (8) and display module (17) respectively, Voltage stabilizing module (8) connects power module (11), wherein: mainboard (15) uses embedded single Plate computer PCM9361, with DDR2 internal memory and 8G hard disk, 2 SATA of 1GB Interface, 2 RS232 interfaces, 3 USB 2.0 interfaces.

Multifunction soil nutrient based on Halogen light combined light source the most according to claim 1 Device for fast detecting, it is characterised in that described GPS module (20) is Garman GPS25LP.