CN207231550U - A kind of online moisture of high accuracy grain and temperature monitor - Google Patents
A kind of online moisture of high accuracy grain and temperature monitor Download PDFInfo
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- CN207231550U CN207231550U CN201721332902.0U CN201721332902U CN207231550U CN 207231550 U CN207231550 U CN 207231550U CN 201721332902 U CN201721332902 U CN 201721332902U CN 207231550 U CN207231550 U CN 207231550U
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- grain
- moisture
- temperature monitor
- temperature
- card slot
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Abstract
The utility model discloses a kind of online moisture of high accuracy grain and temperature monitor, it is characterised in that including：Terminal control processing unit；Sensor detection unit, it is communicated to connect with the terminal processing units, and the sensor detection unit is detachably arranged at grain storage to be measured by a flexible clamp piece and the installed part being matched therewith and receives on pipe；Wherein, the installed part is fixedly installed on the grain storage to be measured and receives on pipe, and the installed part is arranged to double layer hollow structure.Using the detector of the utility model, the precision for detecting data, while the set-up mode that sensor is detachable are improved, the dismounting of staff's maintenance is facilitated, improves work efficiency.
Description
Technical field
It the utility model is related to a kind of grain detector.More specifically, the utility model is related to a kind of to grain farming
Thing carries out moisture and the detector of temperature detection online.
Background technology
The moisture of grain is to evaluate the important indicator of grain quality, is the elementary item of grain detection.Normal grain
Food all contains suitable moisture, and moisture generally remains within limits, this is that grain is sustained life and kept
Necessary to its intrinsic breeding quality and edible quality.Due to being influenced be subject to harvest morning and evening, maturity and weather conditions, grain
Moisture be change numerical value.The detection method of grain moisture content, which sums up, can be divided into Non-Destructive Testing and to damage detection two big
Class.Non-Destructive Testing refers under the premise of the original state of determinand and chemical property etc. is not destroyed, by grain physics in itself,
Optics and chemical characteristic survey its water content.Damage detection and then refer to that determinand crushes during measurement or there occurs chemistry
Change, causes it to keep original shape, structure or component.In this two class, the method for Non-Destructive Testing is more economical, fast
Victory, development is also the rapidest, is the mainstream of world today's water content detection.
The moisture transducer of the high-precision grain online moisture detector of the current country (world) mainly uses infrared survey
And microwave detection：
1st, infrared dehydration method, it is to make its dehydration using infrared heating sample, is contained so as to reach measurement moisture
The purpose of amount.Major influence factors are temperature and heating time, which cannot carry out on-line measurement；
2nd, microwave heating method, it is the ultra-high frequency of 2 450MHz or 915MHz caused by the magnetron using micro-wave oven
Hydrone in microwave quick oscillation grain, makes molecule mutually collide and rub, and then removes the moisture in grain；
Compared with conventional drying methods, both approaches shorten measurement period, reduce energy consumption.Wherein, infrared method is not required to
Heat medium, improves heat utilization rate；Microwave method is easy to operate, and can measure several samples at the same time, but it has warm layer and imitates
Should and edge effect, the uneven of microwave is caused, so as to influence measurement accuracy.Shortcoming is：Microwave heating method is using warm effect layer
And edge effect, the uneven of microwave is caused, so that measurement accuracy is influenced, while there are procurement price height (about 1 for two methods
Ten thousand yuan -10 ten thousand yuan are differed), buying difficulty big (basic need import, domestic factor are seldom) and later stage maintenance expense
The problems such as high (portions of optical components and microwave transmission parts need to regularly replace).
Technical grade or Instrument Level grain online moisture detector precision are more than ± 0.5% under normal circumstances at the same time, volume
Larger (more than 20000cm3), heavier-weight (more than 2KG).
Need to develop a kind of lower cost, volume smaller, accuracy of detection higher while more convenient dismounting peace in summary
The online moisture of grain and temperature monitor of dress.
Utility model content
One purpose of the utility model is to solve at least the above and/or defect, and provides and at least will be described later
The advantages of.
In order to realize these purposes and further advantage according to the present utility model, there is provided a kind of online water of high accuracy grain
Point and temperature monitor, including：
Terminal control processing unit；
Sensor detection unit, it is communicated to connect with the terminal processing units, and the sensor detection unit passes through
One flexible clamp piece and the installed part being matched therewith detachably are arranged at grain storage to be measured and receive on pipe；
Wherein, the installed part is fixedly installed on the grain storage to be measured and receives on pipe, and the installed part is arranged to double
Layer hollow structure.
Preferably, wherein, the sensor detection unit includes：
Card slot is installed；
It is arranged in the installation card slot to detect the moisture transducer of grain moisture content to be measured；
It is arranged in the installation card slot to detect the temperature sensor of cereal temperature to be measured.
Preferably, wherein, the installed part predetermined position is provided with an opening, to be formed at the installed part both ends
There are the first card hole and the second card hole.
Preferably, wherein, the flexible clamp piece includes：
Two shafts, it is engaged the both sides for being relatively arranged on installation card slot；
Two axis, it is fixedly installed on the predetermined position of the shaft respectively, so that axis can be installed with shaft edge
Desired guiding trajectory on card slot rotates；
At least four elastic threads, its one end are fixedly installed on installation card slot, and the other end is fixedly installed on the axis
Upper surface, lower surface predetermined position so that axis can distinguish clamping fixed in card hole.
Preferably, wherein, the terminal control processing unit includes：
Signal analysis and processing module；
Signal acquisition module, its one end are communicated to connect with the sensor detection unit, the other end and the signal analysis
Processing module two-way communication link；
Input/output module, its two-way communication link to the signal analysis and processing module；
Power module and LED display module, are communicatively connected to signal analysis and processing module.
Preferably, wherein, first card hole is respectively arranged with predetermined position in the second card hole to match with axis
The first baffle and second baffle of conjunction.
Preferably, wherein, the moisture transducer uses 5TM type FDR moisture transducers, and the temperature sensor uses
PT1000 type temperature sensors.
The utility model includes at least following beneficial effect：
Received first, sensor is detachably arranged at grain storage to be measured by flexible clamp piece on pipe so that sensor is being examined
It is convenient that it is removed and installed when repairing or occurring detecting failure, the time is saved, improves work efficiency.
Second, by by on-line measurement grain moisture content and on-line measurement cereal temperature and signal processing, signal output, control
System output organically integrates, and it is provided simultaneously with online grain moisture content, temperature survey, signal can be identified by being converted to
Function and output signal and the function of controlling other equipment power supply break-make, possess more perfect function.
Third, grain measurement of moisture content Sensitive Apparatus of the 5TM type FDR moisture transducers used as Project Product；Its ruler
Very little small (being only 100mm X 32mm X 18mm), good operating stability, its grain measurement of moisture content precision can reach ± 0.1%,
The price of volume procurement only only has 600 yuans or so, is detected far below what other producers used near infrared ray, microwave
Etc. the moisture transducer of principle manufacture, using PT1000 type platinum resistance temperature sensors, this temperature sensor size is small (to be only
2mm X 2mm X1.5mm), it can be integrated in inside moisture transducer circuit, can be with the work of long-time continuous stable, its temperature
Degree calibration accuracy can reach ± 0.1 DEG C, and its volume procurement valency only only has 6 yuans or so so that the utility model
The high-precision grain online moisture detector volume of design only has 1000cm3, volume is less than general grain measurement of moisture content instrument volume
1/20；Weight only has 400g, less than general grain measurement of moisture content instrument 1/5；And accuracy of detection can then reach ± 0.2%.
The further advantage, target and feature of the utility model embody part by following explanation, and part will also pass through
Research and practice to the utility model and be understood by the person skilled in the art.
Brief description of the drawings
Fig. 1 is the modular structure schematic diagram of a kind of online moisture of high accuracy grain of the utility model and temperature monitor；
Fig. 2 is the flexible clamp piece side view of a kind of online moisture of high accuracy grain of the utility model and temperature monitor；
Fig. 3 shows for the power module circuitry structure of a kind of online moisture of high accuracy grain of the utility model and temperature monitor
It is intended to；
Fig. 4 is the signal acquisition module circuit knot of a kind of online moisture of high accuracy grain of the utility model and temperature monitor
Structure schematic diagram；
Fig. 5 is the moisture transducer R-C integrations of a kind of online moisture of high accuracy grain of the utility model and temperature monitor
Electrical block diagram；
Fig. 6 is the temperature sensor R-V conversions of a kind of online moisture of high accuracy grain of the utility model and temperature monitor
Electrical block diagram.
Embodiment
The utility model is described in further detail below in conjunction with the accompanying drawings, to make those skilled in the art with reference to explanation
Book word can be implemented according to this.
It should be appreciated that such as " having ", "comprising" and " comprising " term used herein do not allot one or more
The presence or addition of a other elements or its combination.
Fig. 1 is shown realizes shape according to one kind of a kind of online moisture of high accuracy grain of the utility model and temperature monitor
Formula, including：
Terminal control processing unit 1；
Sensor detection unit 2, it is communicated to connect with the terminal processing units, and the sensor detection unit passes through
One flexible clamp piece 3 and the installed part 4 being matched therewith detachably are arranged at grain storage to be measured and receive on pipe 5；
Wherein, the installed part is fixedly installed on the grain storage to be measured and receives on pipe, and the installed part is arranged to double
Layer hollow structure.Realize the inspection to temperature data and wetness's data in grain to be measured at the same time by sensor detection unit
Survey, and the related data detected be transmitted in terminal control processing unit, by terminal control processing unit to data into
After row analyzing and processing, directly related data is shown by LED screen, staff is intuitively read and collects coherent detection ginseng
Number, simultaneously because sensor detection unit is to be arranged on grain storage to be measured by flexible clamp piece to receive on pipe, so when needs are to passing
When sensor is overhauled or replaced, facilitate staff to remove and install, save the time, improve work efficiency.Using this
Scheme has detection, and data precision is high, efficient, sensor removes and installs the high benefit of convenience.This mode is one
The explanation of kind preferred embodiments, but be not limited thereto.When implementing the utility model, it is appropriate to be carried out according to user's demand
Replacement and/or modification.
In another example, the sensor detection unit includes：
One installation card slot 6；
It is arranged in the installation card slot to detect the moisture transducer 7 of grain moisture content to be measured；
It is arranged in the installation card slot to detect the temperature sensor 8 of cereal temperature to be measured.By the way that moisture is sensed
Device and temperature sensor are fixedly mounted in card slot, improve stability and security during sensor installation.Using this side
Case has the benefit that equipment mounting stability is good, integrated degree is high.Also, this mode is a kind of preferred embodiments
Illustrate, but be not limited thereto.When implementing the utility model, can be carried out according to user's demand appropriate replacement and/or
Modification.
In another example, the installed part predetermined position is provided with an opening 9, with installed part both ends structure
Into having the first card hole 10 and the second card hole 11.Since installed part is double layer hollow structure, so at the opening section set, will
Two installation card holes are directly formed, while to facilitate flexible clamp piece to install, improve the stability of installation.Had using this scheme
Having can good, compact-sized, equipment occupation of land the is small benefit of implementation result.Also, this mode is a kind of preferably real
The explanation of example, but be not limited thereto.When implementing the utility model, appropriate replacement can be carried out according to user's demand
And/or modification.
In another example, the flexible clamp piece includes：
Two shaft (not shown), it is engaged the both sides for being relatively arranged on installation card slot；
Two axis 12, it is fixedly installed on the predetermined position of the shaft respectively, so that axis can pacify with shaft edge
The desired guiding trajectory being loaded on groove rotates；
At least four elastic threads 13, its one end are fixedly installed on installation card slot, and the other end is fixedly installed on the card
The upper surface of axis, lower surface predetermined position, so that axis can distinguish clamping fixed in card hole.The original of flexible clamp piece work
Manage and be：When two axis are from external force, the distance between its is slightly larger than the distance of opening, when needing the installation card to sensor
When groove is installed, axis, by elastic threads and the collective effect of shaft, makes two axis follow shaft under the extruding of external force
Certain displacement occurs upwards, while is arranged at two elastic threads compression of axis upper surface, is arranged at the two of axis lower surface
Root elasticity rope elongation, so as to reduce the spacing distance between two axis, until when reducing the size less than opening, axis is smooth
Through opening, so that the installation card slot of sensor is fastened on the first card hole with the second card hole, completing the installation to sensor,
When needing to dismantle sensor, principle is as above.Using this scheme have can implementation result it is good, it is easy for assemble or unload,
Efficient benefit.Also, this mode is a kind of explanation of preferred embodiments, but is not limited thereto.Implementing this
During utility model, appropriate replacement and/or modification can be carried out according to user's demand.
In another example, the terminal control processing unit includes：
Signal analysis and processing module 101；
Signal acquisition module 102, its one end are communicated to connect with the sensor detection unit, the other end and the signal point
Analyse processing module two-way communication link；
Input/output module 103, its two-way communication link to the signal analysis and processing module；
Power module 104 and LED display module 105, are communicatively connected to signal analysis and processing module.
Signal acquisition module uses the ATMega8A type microcontrollers of ATM companies of the U.S., and we used microcontroller in design
ADC0 modulus acquisition ports.In order to make whole system power consumption lower, system operation is more stablized, we are by the operation of microcontroller frequency
Rate is set as 3.6864M.In effective range, the pulse ceiling voltage of 5TM moisture transducers output is 3.6V, and frequency is
100Hz, the DC voltage after RC integrations are averaging is up to 1V.Therefore, microcontroller ADC collection reference voltage we adopt
With 1.1V reference voltages inside microcontroller.Benefit using internal reference voltage is that whole Project design can be made more simple
It is single, the outside reference circuit of complexity is eliminated, has even more saved cost.And microcontroller internal reference is also more stable, to carrying
The stability for rising product long-time service has very great help.
Power module uses the power supply of direct current output constant pressure and invariable power, and basic circuit principle is as follows：Output current Iout
Equal to the electric current for flowing through resistance R0.According to triode fundamental characteristics, the voltage constant at R0 both ends is triode Q0 base stages b and transmitting
Voltage Vbe between the e of pole, therefore electric current constant output Iout=Vbe/R0.Rear end is all relatively good using the linearity and stability
Three terminal regulator TL431 do voltage stabilizing output, with reference to the specifications of TL431, computation formula can calculate output voltage perseverance
Surely Vout=(R2/R3+1) * 2.5 is exported.Using this scheme to have that control effect is good, stable signal transmission is high favourable it
Place.Also, this mode is a kind of explanation of preferred embodiments, but is not limited thereto., can be with when implementing the utility model
Appropriate replacement and/or modification are carried out according to user's demand.
In another example, first card hole is respectively arranged with predetermined position in the second card hole to match with axis
The first baffle 14 of conjunction and second baffle 15.By the baffle of setting, further define axis in the first card hole and second
Position in card hole, will not slide there is a situation where opposite when making its installation fixed, have mounting stability using this scheme
High benefit.Also, this mode is a kind of explanation of preferred embodiments, but is not limited thereto.Implementing this practicality
When new, appropriate replacement and/or modification can be carried out according to user's demand.
In another example, the moisture transducer uses 5TM type FDR moisture transducers, and the temperature sensor is adopted
With PT1000 temperature sensors.The circuit diagram of 5TM type FDR moisture transducer R-C integrating circuit illustrates：U2 passes for 5TM moisture
Sensor matching circuit module, resistance R6 are current-limiting resistance, it is ensured that 5TM moisture transducers are during working long hours, Bu Huiyin
Reduced the service life for overwork.C7, C8 power filtering capacitor, it is ensured that the operating voltage of 5TM moisture transducers is all the time
It is constant, it will not be disturbed be subject to voltage clutter caused by the work of other circuits, ensure that 5TM moisture transducers gather number
According to accuracy, and work long-time stability.R9 resistance and C9 capacitances composition RC integrating circuit, make 5TM moisture transducers
The pulse voltage signal of collection grain moisture content output can be converted into steady dc voltage signal, it is ensured that the stability of measurement,
Eliminate the measuring uncertainty that instantaneous interference is brought.Wherein, No. 3 feet input microcontroller acquisition control of 5TM moisture transducers
Signal, output signal are output to microcontroller by ADC positions after RC is integrated and carry out signal acquisition, analysis, processing；
The circuit diagram of PT1000 temperature sensor R-V conversion circuits illustrates：R3 adjusts resistance for zero-bit.R3 more it is big then
Vout output voltage values are smaller, otherwise the smaller then Vout output voltage values of R3 are bigger.R4 adjusts resistance for full scale, and R4 is bigger, fortune
It is smaller to calculate amplifier magnification ratio；R4 is smaller, and operational amplifier amplification factor is bigger.By this R-V translation circuit, you can by heat
The measurement temperature of quick resistance PT1000 corresponds to resistance value and is transformed to corresponding d. c. voltage signal.Had using this scheme
Moisture, temperature data signal acquisition precision be high, can the good benefit of implementation result.Also, this mode is a kind of preferable
The explanation of example, but be not limited thereto.When implementing the utility model, appropriate replacement can be carried out according to user's demand
And/or modification.
Number of devices and treatment scale described herein are the explanations for simplifying the utility model.To the utility model
A kind of online moisture of high-precision grain and the application of temperature monitor, modifications and variations be to one skilled in the art
Obviously.
Although the embodiment of the utility model is disclosed as above, it is not restricted in specification and embodiment
Listed utilization.It can be applied to the field of various suitable the utility model completely.For those skilled in the art,
Other modification is easily achieved.Therefore under the universal limited without departing substantially from claim and equivalency range, this reality
Specific details is not limited to new and shown here as the legend with description.
Claims (7)
1. a kind of online moisture of high accuracy grain and temperature monitor, it is characterised in that including：
Terminal control processing unit；
Sensor detection unit, it is communicated to connect with the terminal processing units, and the sensor detection unit passes through a bullet
Property fastener and the installed part being matched therewith detachably are arranged at grain storage to be measured and receive on pipe；
Wherein, the installed part is fixedly installed on the grain storage to be measured and receives on pipe, and the installed part is arranged in bilayer
Hollow structure.
2. a kind of online moisture of high-precision grain and temperature monitor as claimed in claim 1, it is characterised in that the sensing
Device detection unit includes：
Card slot is installed；
It is arranged in the installation card slot to detect the moisture transducer of grain moisture content to be measured；
It is arranged in the installation card slot to detect the temperature sensor of cereal temperature to be measured.
3. a kind of online moisture of high-precision grain and temperature monitor as claimed in claim 1, it is characterised in that the installation
Part predetermined position is provided with an opening, to have been formed the first card hole and the second card hole at the installed part both ends.
4. a kind of online moisture of high-precision grain and temperature monitor as claimed in claim 1, it is characterised in that the elasticity
Fastener includes：
Two shafts, it is engaged the both sides for being relatively arranged on installation card slot；
Two axis, it is fixedly installed on the predetermined position of the shaft respectively, so that axis can be with shaft edge installation card slot
On desired guiding trajectory rotate；
At least four elastic threads, its one end are fixedly installed on installation card slot, and the other end is fixedly installed on the upper of the axis
Surface, lower surface predetermined position, so that axis can distinguish clamping fixed in card hole.
5. a kind of online moisture of high-precision grain and temperature monitor as claimed in claim 1, it is characterised in that the terminal
Control process unit includes：
Signal analysis and processing module；
Signal acquisition module, its one end are communicated to connect with the sensor detection unit, the other end and the signal analysis and processing
Module two-way communication link；
Input/output module, its two-way communication link to the signal analysis and processing module；
Power module and LED display module, are communicatively connected to signal analysis and processing module.
6. a kind of online moisture of high-precision grain and temperature monitor as claimed in claim 3, it is characterised in that described first
Card hole is respectively arranged with matched with axis first baffle and second baffle with predetermined position in the second card hole.
7. a kind of online moisture of high-precision grain and temperature monitor as claimed in claim 2, it is characterised in that the moisture
Sensor uses 5TM type FDR moisture transducers, and the temperature sensor uses PT1000 type temperature sensors.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721332902.0U CN207231550U (en) | 2017-10-17 | 2017-10-17 | A kind of online moisture of high accuracy grain and temperature monitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721332902.0U CN207231550U (en) | 2017-10-17 | 2017-10-17 | A kind of online moisture of high accuracy grain and temperature monitor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207231550U true CN207231550U (en) | 2018-04-13 |
Family
ID=61851625
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721332902.0U Expired - Fee Related CN207231550U (en) | 2017-10-17 | 2017-10-17 | A kind of online moisture of high accuracy grain and temperature monitor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207231550U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110426417A (en) * | 2019-08-09 | 2019-11-08 | 石家庄粮保科技有限公司 | Embeddable determination of moisture circuit module |
-
2017
- 2017-10-17 CN CN201721332902.0U patent/CN207231550U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110426417A (en) * | 2019-08-09 | 2019-11-08 | 石家庄粮保科技有限公司 | Embeddable determination of moisture circuit module |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180413 Termination date: 20181017 |