CN114428058A - Corn moisture content detector - Google Patents
Corn moisture content detector Download PDFInfo
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- CN114428058A CN114428058A CN202210112071.5A CN202210112071A CN114428058A CN 114428058 A CN114428058 A CN 114428058A CN 202210112071 A CN202210112071 A CN 202210112071A CN 114428058 A CN114428058 A CN 114428058A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/01—Arrangements or apparatus for facilitating the optical investigation
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
- G01N21/27—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands using photo-electric detection ; circuits for computing concentration
Abstract
The invention discloses a hand-held moisture content detector, which comprises a detector shell, a control device and a rubber sealing cylinder, wherein: the detector casing is the tube-shape of both ends open-ended, and controlling means main part detachable inserts in the detector casing, and controlling means encapsulates spectral sensor and singlechip, and the detachable installation of rubber seal section of thick bamboo is at the casing head. The corn moisture content detector provided by the invention can measure the moisture content of the corn on the plant in the field growth period without threshing the corn.
Description
Technical Field
The invention belongs to the technical field of detection, and particularly relates to a corn moisture content detector.
Background
Corn is one of important crops in northern areas, and along with the improvement of agricultural mechanization level and the continuous increase of corn planting area in recent years, the combined harvester is applied to corn kernel harvesting more and more. The moisture content of corn grains suitable for direct threshing and harvesting is 15% -25% according to the specification of the technical conditions of the corn harvesting machinery, so that the moisture content of the corn grains is known to be one of important factors influencing the corn harvesting yield, and therefore, the measurement of the moisture content of the corn grains before harvesting has important significance in improving the corn crop yield, reducing the breakage rate and reducing the loss rate.
Most of the existing corn kernel water content detection methods need to thresh corn, and capacitance methods are adopted to measure the corn according to dielectric characteristics. The method is complex to operate, the measuring time is long, the result has hysteresis, and if the moisture content measuring error is large, the corn harvesting loss is serious.
Therefore, the invention discloses a corn moisture content detector which can measure the moisture content of the corn on a plant in the field growth period without threshing the corn.
Disclosure of Invention
In order to realize the purpose of the invention, the following technical scheme is adopted for realizing the purpose:
the utility model provides a hand-held type moisture content detector, includes detector casing, controlling means, a rubber seal section of thick bamboo, wherein: the detector casing is the tube-shape of both ends open-ended, and controlling means main part detachable inserts in the detector casing, and controlling means encapsulates and has spectral sensor and singlechip, and rubber seal section of thick bamboo detachable installs at the casing head.
Hand-held type moisture content detector, wherein: the spectral sensor comprises a spectral sensor probe, a light source, a light filter, a photoelectric sensor and a power supply module, wherein the light filter is installed at the top end of the head of the shell, the spectral sensor probe and the light source are installed at the lower part of the light filter, the light filter is used for transmitting and reflecting light waves, the spectral sensor probe is used for converting the light waves into light intensity signals, the photoelectric sensor is used for converting the light intensity signals into voltage signals, and the filter is used for amplifying and filtering the voltage signals.
Hand-held type moisture content detector, wherein: the single-chip microcomputer comprises an AD conversion module, a Bluetooth transmission module, a power supply module and a data processing module, wherein the power supply module supplies power to the single-chip microcomputer, the AD conversion module is used for converting electric signals transmitted by the spectrum sensor into digital signals, the Bluetooth module is used for wirelessly transmitting the measurement data of the spectrum sensor converted by the AD conversion module to an upper computer, the data processing module is used for carrying out signal analysis processing on the received electric signals, and a model between a voltage signal and the corn moisture content is established.
Hand-held type moisture content detector, wherein: the edge of the sealing cylinder is uniformly provided with a plurality of short openings.
Hand-held type moisture content detector, wherein: the control device main part is provided with two small fixing bosses, the shell is provided with 2 fixing holes, and the two fixing pattern platforms extend out of the 2 holes respectively after the control device is inserted into the shell.
Hand-held type moisture content detector, wherein: two flaky tail wings are arranged at the tail part of the shell, and each tail wing is provided with a clamping groove.
The utility model provides a full fruit moisture content detection device, includes the shell, moisture content detection device main part, shell and hand-held type moisture content detector, its characterized in that: the hand-held type moisture content detector is as above one hand-held type moisture content detector, and hand-held type moisture content detector is installed in moisture content detection device main part, and moisture content detection device main part is installed in the shell.
The full fruit moisture content detection device, wherein: the whole fruit moisture content detection device main body comprises a transverse displacement mechanism, a longitudinal displacement mechanism, a circumferential rotating mechanism, a left side mounting frame and a right side mounting frame, wherein the transverse displacement mechanism is mounted on the longitudinal displacement mechanism, the longitudinal displacement mechanism is mounted on the circumferential rotating mechanism, and the circumferential rotating mechanism is mounted on the left side mounting frame and the right side mounting frame; the hand-held type moisture content detector is installed on horizontal displacement mechanism.
The full fruit moisture content detection device, wherein: the transverse displacement mechanism comprises a transverse driving motor, a transverse driving motor bracket, a coupler, a transverse lead screw and a transverse sliding block; the handheld moisture content detector is installed on the transverse lead screw, the transverse lead screw is transversely arranged, the transverse sliding block is movably installed on the transverse lead screw, the transverse driving motor is installed on the transverse driving motor support, and the transverse driving motor is connected with the first end of the transverse lead screw through the coupler.
The full fruit moisture content detection device, wherein: the lower part of the transverse sliding block is provided with an elastic clamp which is of a door-shaped structure and comprises a clamp beam and clamping plates on two sides of the beam, and the distance between the two clamping plates is slightly larger than the distance between the two sheet-shaped tail wings at the tail part of the shell of the handheld moisture content detector; the draw-in groove of hand-held type moisture content detector is installed on the clamping.
The full fruit moisture content detection device, wherein: the longitudinal displacement mechanism comprises a longitudinal driving motor, a longitudinal driving motor support, a bevel gear, a longitudinal screw, a longitudinal driving end sliding block and a longitudinal driving end bearing seat, wherein the longitudinal driving motor is installed on the longitudinal driving motor support and is positioned at the upper part of the transverse driving motor; a bevel gear is arranged on a rotating shaft of the longitudinal driving motor and is meshed with the bevel gear arranged at the top end of the longitudinal screw rod; the upper part of the longitudinal screw is connected with a bevel gear, the lower part of the longitudinal screw is connected with a longitudinal driving end bearing seat, and the longitudinal driving end bearing seat is arranged on a rotary driving end disc; the driving end of the longitudinal sliding block is movably arranged on the longitudinal screw rod, and the driving end of the longitudinal sliding block is connected with the transverse driving motor bracket; the longitudinal displacement mechanism further comprises a longitudinal coupler, a longitudinal supporting end sliding block, a longitudinal supporting end screw rod bearing seat, a longitudinal supporting end motor and a longitudinal supporting end motor support, one end of the longitudinal supporting end screw rod is connected with the longitudinal supporting end motor through the coupler, the longitudinal supporting end motor is fixed on the rotary supporting end disc through the longitudinal supporting end motor support, the other end of the longitudinal supporting end screw rod is fixed on the rotary supporting end disc through the longitudinal supporting end screw rod bearing seat, the longitudinal supporting end sliding block is installed on the longitudinal supporting end screw rod in a vertically movable mode, and the second end of the transverse screw rod is connected with the longitudinal supporting end sliding block through a rotary supporting end connecting rod.
The full fruit moisture content detection device, wherein: the circumferential rotating mechanism comprises a circumferential rotating driving mechanism and a circumferential rotating supporting mechanism, and the circumferential rotating driving mechanism comprises a driving end circular guide rail, a rotating driving motor, a rotating driving disc, a rotating driving motor support, a rotating driving sliding block and a rotating driving end connecting rod which are arranged on a mounting rack on the left side of the shell; the rotary driving motor is fixed on a rotary driving motor support, the rotary driving motor support is installed on a left mounting frame, a main shaft of the rotary driving motor is hinged to one end of a rotary driving connecting rod, the other end of the rotary driving connecting rod is connected with a rotary driving sliding block, the rotary driving sliding block is connected with a rotary disc, a circle of dovetail groove is formed in a circular guide rail of the driving end, and the rotary driving sliding block is a dovetail sliding block and is installed on the circular guide rail of the driving end.
The full fruit moisture content detection device, wherein: the circumferential rotation supporting mechanism comprises a rotation supporting end connecting rod, a rotation supporting sliding block and a supporting end circular guide rail; the circular guide rail of support end is installed to shell right side mounting bracket, supports the circular guide rail of end and is the same axle center with the drive end circular guide rail isodiametric, and structural shape is the same, supports the circular guide rail of end and opens there is the round dovetail, and the rotation support slider is the forked tail slider, installs on supporting the circular guide rail of end, and the rotation support slider is articulated with horizontal lead screw through rotation support end connecting rod.
The full fruit moisture content detection device, wherein: the shell comprises a shell body, an elastic hinge and a channel opening and closing door, the channel opening and closing door comprises three door leaves, the three door leaves are arranged at a circular door opening on the right side wall of the shell through the elastic hinge, the three door leaves form the circular door and are used for closing the door opening, and a small circular hole is formed in the center of the circular door; the full fruit measuring device main part is installed in the casing, and the left side mounting bracket of full fruit measuring device main part is installed on the shell left side wall, and the right side mounting bracket of full fruit measuring device main part is installed on the shell right side wall.
The full fruit moisture content detection device, wherein: still include the annex, the annex is installed in the casing, including singlechip, camera and driver.
The full fruit moisture content detection device, wherein: a push-pull type observation window is arranged at the top cover of the device shell.
Drawings
FIG. 1 is a schematic diagram of the general structure of the hand-held moisture content detector of the present invention;
FIG. 2 is a schematic diagram of the position of the light source of the spectral sensor according to the present invention;
FIG. 3 is an electrical control flow chart of the moisture content detection system of the present invention;
FIG. 4 is a schematic diagram of the effect of the upper computer software according to the present invention;
FIG. 5 is a flow chart of the water cut prediction model modeling of the present invention; .
FIG. 6 is a schematic view of the internal structure of the whole fruit inspection device according to the present invention;
FIG. 7 is a schematic diagram of the lateral displacement structure of the whole fruit detecting device according to the present invention;
FIG. 8 is a schematic view of the longitudinal displacement structure of the whole fruit detecting device according to the present invention;
FIG. 9 is a schematic view of a circumferential rotation driving end structure of the whole fruit detecting device according to the present invention;
FIG. 10 is a schematic view of a circumferential rotation supporting end of the whole fruit detecting device according to the present invention;
FIG. 11 is a schematic view of the housing and the attachment of the whole fruit inspection device of the present invention;
FIG. 12 is a schematic view of the shape of the housing of the device of the present invention.
Wherein the reference numbers are as follows:
Detailed Description
The following detailed description of the present invention will be made with reference to the accompanying drawings 1-12.
As shown in figure 1, the handheld moisture content detector comprises a detector shell 2, a control device 3 and a rubber sealing cylinder 6, and is used for rapidly scanning and detecting the moisture content of peeled corns. The detector casing 2 is the tube-shape of both ends open-ended, 3 main parts of controlling means are cylindrical, detachable inserts in detector casing 2, wherein controlling means 3 is packaged with spectral sensor and singlechip, be equipped with two little fixed bosss 1 in the controlling means 3 main part, casing 2 is used for controlling means 3 and is convenient for artifical handheld, it has 2 fixed trompils to open on the casing 2, two fixed drawing platforms 1 are outstanding from 2 trompils respectively after controlling means 3 inserts casing 2, so that controlling means 3 is fixed with detector casing 2, 6 detachable installations of rubber seal section of thick bamboo are at 2 heads of casing. The rubber sealing cylinder 6 is horizontally pressed on the corn when measuring the water content, so that a closed darkroom is formed between the spectrum sensor and the corn grains, the influence of external light such as sunlight on the measurement precision of the spectrum sensor is reduced, and the spectrum sensor works in the closed darkroom. The edge of the rubber sealing cylinder 6 is densely provided with a plurality of short openings, and when the rubber sealing cylinder 6 is pressed on the corn, the edge can be easily turned outwards, so that the corn sealing cylinder is favorably attached to the corn, and a closed dark room is not easy to expose. Two flaky tail wings are arranged at the tail part of the shell 2, and each tail wing is provided with a clamping groove 4.
As shown in fig. 2-3, the control device 3 includes a spectrum sensor 10 and a single-chip microcomputer 14. The spectrum sensor 10 comprises a spectrum sensor probe 8, a light source 9, an optical filter 7, a filter 11, a photoelectric sensor 12 and a power supply module 13, and is used for identifying visible light to near infrared spectrum, detecting the moisture content of corn and transmitting an electric signal to a single chip microcomputer 14; an optical filter 7 is installed at one end of the control device 3, the optical filter 7 is installed at the top end of the head of the shell 2 after the control device 3 is inserted into the shell 2, the spectrum sensor probe 8 and the light source 9 are installed at the lower part of the optical filter 7, wherein the light source 9 is used for emitting visible light and near infrared light to corn surface grains, and the light source 9 is composed of a halogen lamp capable of emitting full spectrum or a plurality of LED lamps capable of emitting different wave band spectrums. The optical filter 7 is used for transmitting and absorbing light waves reflected by the corn kernels, the spectral sensor probe 8 is used for converting the light waves into light intensity signals, the photoelectric sensor 12 is used for converting the light intensity signals received by the spectral sensor probe 10 into voltage signals, and the filter 11 is used for amplifying and filtering the converted voltage signals so as to improve the signal-to-noise ratio. The power supply module 13 provides energy to enable the spectrum sensor 10 to work, wherein the spectrum sensor 10 supports various power supply modes, a battery or a power supply module is arranged in the spectrum sensor, power can be supplied through a portable lithium battery, charging work can also be carried out through a charging interface of the handheld moisture content detector, and in addition, a solar battery can be arranged in the spectrum sensor 10 to receive and convert solar energy in the field to work. The single chip microcomputer 14 comprises an AD conversion module 15, a Bluetooth module 16, a power module 17 and a data processing module 18, wherein the power module 17 supplies power for the single chip microcomputer 14, the AD conversion module 15 converts electric signals transmitted by the spectrum sensor 10 into digital signals, the Bluetooth module 16 is used for wirelessly transmitting the measurement data of the spectrum sensor 10 converted by the AD conversion module 15 to an upper computer 19, the data processing module 18 in the single chip microcomputer 14 analyzes and processes the received electric signals, and a model between voltage signals and corn moisture content is established and transmitted to the upper computer 19.
The corn grain water content modeling process is shown in fig. 4, and the water content prediction model establishment steps are as follows:
step one, sample preparation and spectral information acquisition: the corn in the same plot in a plurality of different growth periods is selected as a sample, and the phenomenon that the surface of the corn sample is obviously rotten or broken in a large area is ensured. Spectral data of all corn samples were obtained using a spectral sensor scan.
Step two, measuring the true moisture content of the corn grains: drying the threshed corn kernels for a certain time according to the corn kernel water content measurement standard, recording the weight of the corn kernels before and after drying, and repeatedly measuring for many times to obtain an average value so as to obtain the water content of the corn kernels.
Step three, spectrum data preprocessing: the spectral data of the corn grains are subjected to denoising processing, and the acquired spectral data are filtered by adopting a proper filtering method, so that the spectral curve noise is reduced, and the modeling accuracy is improved.
Selecting spectral characteristic wavelengths: in order to select the optimal wavelength capable of representing the water content of the corn, importance evaluation is carried out on the preprocessed smooth spectral data through a certain method, and a proper spectral characteristic wavelength is selected, so that the dimensionality reduction of the spectral data is realized, and the operation speed is improved.
Step five, establishing a water content model: marking the acquired spectral data by taking the real water content of the corn grains as a label, obtaining a training set and a verification set in a certain proportion by adopting a data set dividing method, training the model based on machine learning and a deep neural network, and establishing a prediction model between the spectral data and the real water content of the corn sample.
The upper computer interface effect diagram is shown in fig. 4. According to the establishment of the seed moisture content prediction model, the measured moisture content of the corn seeds is displayed on an interface of the upper computer 19 in real time, and the upper computer 19 can realize the display, statistics, derivation and the like of moisture content data. In addition, the upper computer 19 can be connected with the detection cloud 20, and can realize mutual transmission of data. In the use, host computer 19 can upload the data of gathering to the high in the clouds, and the abundant high in the clouds data volume, host computer 19 still can be according to the huge moisture content database in the high in the clouds 20 simultaneously, realizes more accurate measurement to maize seed grain moisture content. The detection cloud 20 can store the corn grain water content data of different plots, perform plot humidity statistics, realize the prediction of harvesting time through the processing and analysis of the data, and further can estimate the drying cost and the like of the harvested corn.
The invention also provides a whole fruit moisture content detection device based on the hand-held moisture content detector, which comprises a whole fruit moisture content detection device main body, a shell and a hand-held moisture content detector 28, wherein the whole fruit moisture content detection device main body is shown as figure 6. When moisture content measurements need to be taken of the corn in various directions, the hand-held moisture content detector 28 may be installed in the whole fruit moisture content detection device body. The full fruit moisture content detection device main part includes horizontal displacement mechanism, vertical displacement mechanism, circumference rotary mechanism, left side mounting bracket and right side mounting bracket. The transverse displacement mechanism is arranged on the longitudinal displacement mechanism, the longitudinal displacement mechanism is arranged on the circumferential rotation mechanism, and the circumferential rotation mechanism is arranged on the left mounting rack and the right mounting rack. The hand-held moisture content detector 28 is mounted on the lateral displacement mechanism.
The lateral displacement mechanism is shown in fig. 6 and 7. The transverse displacement mechanism comprises a transverse driving motor 32, a transverse driving motor bracket 31, a coupler 25, a transverse lead screw 26 and a transverse sliding block 27. Hand-held type moisture content detector 28 is installed on horizontal lead screw 26, horizontal lead screw 26 transverse arrangement, the mobilizable installation on horizontal lead screw 26 of horizontal slider 27, horizontal drive motor 32 is installed on horizontal drive motor support 31, horizontal drive motor 32 passes through shaft coupling 25 and is connected with the first end of horizontal lead screw 26, can drive horizontal lead screw 26 and rotate, horizontal lead screw 26 can make horizontal slider 27 do transverse displacement, thereby drive hand-held type moisture content detector 28 and remove, can realize horizontal measurement maize. An elastic clamp 33 is fixed on the lower portion of the transverse sliding block 27, the clamp 33 is of a door-shaped structure and comprises clamp beams and clamping plates on two sides of the clamp beams, and the distance between the two clamping plates is slightly larger than the distance between two sheet-shaped tail wings on the tail portion of the shell of the handheld moisture content detector.
The longitudinal displacement mechanism is shown in figures 6, 8 and 10. The longitudinal displacement mechanism comprises a longitudinal driving motor 23, a longitudinal driving motor bracket 37, a bevel gear 36, a longitudinal driving end lead screw 35, a longitudinal driving end slide block 34, a longitudinal driving end bearing seat 38, a longitudinal coupler 44, a longitudinal supporting end slide block 45, a longitudinal supporting end lead screw 46, a longitudinal supporting end lead screw bearing seat 47, a longitudinal supporting end motor 55 and a longitudinal supporting end motor bracket 56. The longitudinal driving motor 23 is arranged on a longitudinal driving motor bracket 37 and is positioned at the upper part of the transverse driving motor 32, the longitudinal driving motor bracket 37 is arranged on the rotary driving end disc 24, and the axis of the longitudinal driving motor 23 is spatially vertical to the axis of the transverse screw 26; a bevel gear 36 is mounted on the rotating shaft of the longitudinal driving motor 23 and is meshed with the bevel gear 36 mounted at the top end of the longitudinal screw 35, the longitudinal driving motor 23 drives the bevel gear 36 to rotate, the rotating direction can be changed through a pair of bevel gears 36, the upper part of the longitudinal driving end screw 35 is fixedly connected with the bevel gear 36, the lower part of the longitudinal driving end screw 35 is connected with a longitudinal driving end bearing seat 38, and the longitudinal driving end bearing seat 38 is mounted on the rotating driving end disc 24; the longitudinal driving end sliding block 34 is movably arranged on a longitudinal driving end screw 35, the longitudinal driving motor 23 rotates to drive the longitudinal driving end sliding block 34 to move in the longitudinal direction, and the longitudinal driving end sliding block 34 is connected with the transverse driving motor bracket 31 through a bolt; one end of a longitudinal supporting end screw 46 is connected with a longitudinal supporting end motor 55 through a coupler 44, the longitudinal supporting end motor 55 is fixed on the rotary supporting end disc 43 through a longitudinal supporting end motor bracket 56, the other end of the longitudinal supporting end screw 46 is fixed on the rotary supporting end disc 43 through a longitudinal supporting end screw bearing seat 47, a longitudinal supporting end slider 45 can be vertically moved and installed on the longitudinal supporting end screw 46, and the second end of a transverse screw 26 is connected with the longitudinal supporting end slider 45 through a rotary supporting end connecting rod 41 and drives a transverse displacement mechanism to be close to or far away from the corn along with the longitudinal driving end.
The circumferential rotation mechanism comprises a circumferential rotation driving mechanism and a circumferential rotation supporting mechanism, wherein the circumferential rotation driving mechanism is shown in fig. 6 and 9. The circumferential rotation driving mechanism comprises a rotation driving end circular guide rail 21 arranged on a left mounting frame, a rotation driving motor 22, a rotation driving end disc 24, a rotation driving motor support 39, a rotation driving end disc slide block 40 and a rotation driving end connecting rod 41. Wherein the rotation driving motor 22 is fixed on the rotation driving motor support 39, the rotation driving motor support 39 is installed on the left side installation rack, the main shaft of the rotation driving motor 22 is fixed with one end of a rotation driving connecting rod 41, the other end of the rotation driving connecting rod 41 is connected with a rotation driving end disc slider 40, the rotation driving end disc slider 40 is connected with a rotation driving end disc 24, a circle of dovetail groove is formed in the rotation driving end circular guide rail 21, the rotation driving end disc slider 40 is a dovetail slider and is installed on the rotation driving end circular guide rail 21, when the rotation driving end disc slider 40 slides on the rotation driving end circular guide rail 21, the rotation driving end disc 24 and the transverse and longitudinal displacement mechanism are driven to rotate, and therefore circumferential measurement of corns is achieved.
The circumferential rotation support mechanism is shown in fig. 6 and 10. The circumferential rotation support mechanism comprises a rotation support end connecting rod 42, a rotation support end disc sliding block 29, a rotation support end circular guide rail 30 and a rotation support end disc. The right side mounting frame is provided with a rotary supporting end circular guide rail 30, the rotary supporting end circular guide rail 30 and the rotary driving end circular guide rail 21 are coaxial in the same diameter and the same structural shape, a rotary supporting end disc slide block 29 is connected with a rotary supporting end disc 43, the rotary supporting end circular guide rail 30 is provided with a circle of dovetail groove, the rotary supporting end disc slide block 29 is a dovetail slide block and is arranged on the rotary supporting end circular guide rail 30, and the rotary supporting end disc slide block 29 is fixedly connected with the second end of the transverse screw rod 26 through a rotary supporting end connecting rod 42 fixed on the rotary supporting end disc slide block 29. Under the drive of the circumferential rotation driving mechanism, the rotation driving motor 22 drives the rotation supporting end disc slide block 29 to slide on the rotation driving end circular guide rail 21 through the transverse lead screw 26, so that the circumferential rotation of the transverse and longitudinal displacement mechanism is realized.
The housing and attachment structure of the whole fruit testing device is shown in FIG. 11. The device housing includes a housing shell 48, a resilient hinge 52, and a channel switch door 53. The channel switch door 53 comprises three door leaves which are arranged at a circular door opening on the right side wall of the shell through an elastic hinge 52, the three door leaves form a circular door for sealing the door opening, and the center of the circular door is a small circular hole. The full fruit measuring device body is mounted in the housing 48, the left side mounting bracket of the full fruit measuring device body is mounted on the left side wall of the housing, and the right side mounting bracket of the full fruit measuring device body is mounted on the right side wall of the housing.
The corn can enter the device through the channel switch door 53, the opening and closing of the switch door 53 are realized by the hinge 52, the corn can push the switch door 53 open, and the channel switch door 53 is automatically closed after the corn enters the device. The device accessories include a single chip microcomputer 51, a camera 50 and a driver 49, and are arranged on the device shell 48. The singlechip 51 is used for programming and controlling the driver 49 and the camera 50 to work. The single chip microcomputer 51 can send the picture shot by the camera to an upper computer through a wireless communication device so as to observe the moving position of the handheld water content detector 28, so that the handheld water content detector can move more conveniently. When the hand-held type moisture content detector reachd the observation position, accessible singlechip 51 control camera 50 closed, avoids camera 50's near-infrared light to influence the spectrum detection effect. The driver is used for driving the motor to rotate, and the handheld moisture content detector 28 moves in the transverse direction, the longitudinal direction and the circumferential direction.
The shape of the device shell is shown in fig. 12, a push-pull type observation window 54 is arranged at the top cover of the device shell, and the replacement of the internal elements of the device and the observation in a non-measurement stage can be carried out. In the actual measurement process, except for the channel switch door 53, the device is in a fully closed state to form a closed darkroom.
The specific working process of the invention is as follows: when measuring the maize moisture content on the field maize plant, place hand-held type moisture content detector level on the maize, slightly press the detector, make rubber seal 6 in close contact with maize, click the operating button 5 (operating button sets up in the controlling means main part, can expose from the trompil of detector casing) on the hand-held type moisture content measuring apparatu, accomplish the scanning measurement to the moisture content, moisture content data shows at host computer 19 interface in real time and with data storage to detection high in the clouds 20, host computer software 19 can also carry out historical data's analysis, draw, derive etc.. And when the upper computer 19 is not connected with the detection cloud 20, displaying the moisture content in real time according to the established corn moisture content prediction model. When the upper computer 19 is networked and the connection with the detection cloud end 20 is established, the detected water content data has higher accuracy.
When the full fruit of maize carries out all-round measurement, install draw-in groove 4 to whole fruit detection device clamping 33 with hand-held type moisture content detector 28 on, because clamping 33 has elasticity can be with the firm fixed of detector 28, aim at passageway switch door 53 with the maize, the maize will open and close door 53 and push up and open until getting into whole fruit ear of grain detection device completely, switch door 53 is closed, the little round hole at circular door center is blocked up to the maize peel, the shell casing forms airtight darkroom. Observe the position of maize in the darkroom through camera 50, control three motor work respectively through singlechip 51, make hand-held type moisture content detector 28 around the maize in horizontal, vertical, the ascending removal in circumference, when hand-held type moisture content detector 28 began the during operation, singlechip 51 control camera 50 closed to avoid influencing spectral sensor's measurement accuracy.
The corn moisture content detector provided by the invention can directly measure the moisture content of the corn without threshing, the moisture content data can be displayed in corresponding upper computer software in real time, and the moisture content measuring efficiency is improved. The handheld water content measuring instrument and the whole fruit water content measuring device are designed according to different measuring requirements, and only the core control device needs to be replaced, so that the device is wide in adaptability and strong in operability.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all equivalent structures or equivalent flow transformations that are made by using the contents of the specification and the drawings of the present invention, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (4)
1. The utility model provides a hand-held type moisture content detector, includes detector casing, controlling means, a rubber seal section of thick bamboo, its characterized in that: the detector casing is the tube-shape of both ends open-ended, and controlling means main part detachable inserts in the detector casing, and controlling means encapsulates spectral sensor and singlechip, and the detachable installation of rubber seal section of thick bamboo is at the casing head.
2. The hand-held moisture content detector according to claim 1, wherein: the spectrum sensor comprises a spectrum sensor probe, a light source, an optical filter, a photoelectric sensor and a power supply module.
3. The hand-held moisture content detector according to claim 1, wherein: the single chip microcomputer comprises an AD conversion module, a Bluetooth transmission module, a power supply module and a data processing module.
4. The utility model provides a full fruit moisture content detection device, includes the shell, moisture content detection device main part, shell and hand-held type moisture content detector, its characterized in that: the hand-held moisture content tester as claimed in any one of claims 1 to 3, wherein the hand-held moisture content tester is mounted on a moisture content tester main body, and the moisture content tester main body is mounted in the housing.
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| CN202210112071.5A CN114428058A (en) | 2022-01-29 | 2022-01-29 | Corn moisture content detector |
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