CN205749481U - A kind of detection of agricultural products instrument - Google Patents
A kind of detection of agricultural products instrument Download PDFInfo
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- CN205749481U CN205749481U CN201620616672.XU CN201620616672U CN205749481U CN 205749481 U CN205749481 U CN 205749481U CN 201620616672 U CN201620616672 U CN 201620616672U CN 205749481 U CN205749481 U CN 205749481U
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Abstract
The utility model discloses a kind of detection of agricultural products instrument, its drip irrigation device is to include print module, GPRS module, control module and scanner；Control module, is used for controlling print module, GPRS module and scanner work；Print module, is connected to control module, for printing the paper sheet label with testing result information；Scanner, is connected to control module, for scanning the testing result information on paper sheet label；Control module, is additionally operable to the testing result information of scanning is transferred to GPRS module；GPRS module, is connected to control module, for obtaining the testing result information of scanning, and to background server, this information is carried out record through cordless communication network transmission by GPRS antenna.By scanner, the paper sheet label with testing result information is scanned, the testing result information of scanning is passed through GPRS module through GPRS antenna by control module, thus carry out record by cordless communication network transmission to background server, testing result information is carried out real time record.
Description
Technical field
This utility model relates to detecting apparatus field, particularly to a kind of detection of agricultural products instrument.
Background technology
It is excessively used violated pesticide and uses chemical fertilizer in a large number for a long time, all can cause agriculture production environment severe contamination, to people
The foodsafety of class constitutes a threat to, therefore in the urgent need to low cost, easy to use, field quick detection agricultural production can be carried out
The equipment of product hazard residue material.
At present, notification number is that the Chinese patent of CN204255847U discloses a kind of instrument for detecting pesticide residue through, it include with
The bin of single-chip microcomputer electrical connection, A/D converter and the master controller of time controller composition；Electrically connect with single-chip microcomputer respectively
LED light source group, microprinting device, liquid crystal touch control display screen and accumulator；The USB interface being connected with bin point；Change with A/D
The photoelectric sensor that device point connects；The power interface being connected with storage battery；It is in same with LED light source group and photoelectric sensor
Detection device on one horizontal line；LED light source group is made up of multiple LED light sources, and centre wavelength is 412nm, and detection device is by many
Individual sense channel forms, LED light source and sense channel one_to_one corresponding.
Although this instrument for detecting pesticide residue through is suitable for field quick detection agricultural product hazard residue material, and can will detect
Result is printed as paper by microprinting device and preserves, but during testing staff returns to operating room, if imprudence is by paper
Drop on wet and slippery ground so that paper soaks, thus cause the ambiguous possibility of detection data on paper, therefore this
Plant detector and there are certain improvements.
Utility model content
The deficiency existed for prior art, the purpose of this utility model is to provide a kind of detection of agricultural products instrument, has
The purpose that data real-time update after detection is uploaded.
Above-mentioned technical purpose of the present utility model has the technical scheme that
A kind of detection of agricultural products instrument, including print module, GPRS module, control module and scanner；
Described control module, is used for controlling print module, GPRS module and scanner work；
Described print module, is connected to control module, for printing the paper sheet label with testing result information；
Described scanner, is connected to control module, for scanning the testing result information on paper sheet label；
Described control module, is additionally operable to the testing result information of scanning is transferred to GPRS module；
Described GPRS module, is connected to control module, for obtaining the testing result information of scanning, and this information is passed through
GPRS antenna carries out record through cordless communication network transmission to background server.
By technique scheme, after detection of agricultural products instrument completes agricultural product Pesticides Testing, printed by print module
Go out to have the paper sheet label of testing result information, then by scanner, the paper sheet label with testing result information is swept
Retouch, thus by control module by the testing result information of scanning by GPRS module through GPRS antenna, thus pass through channel radio
Communication network transmission carry out record to background server, testing result information is carried out real time record, due to paper have be difficult to ensure deposit,
Easily damaged characteristic, thus avoid testing staff during returning to operating room, paper is dropped on wet and slippery ground by imprudence
On face so that paper soaks, thus avoid the occurrence of the possibility that the testing result information fuzzy on paper is unclear.
Preferably, also including the memory module being connected to control module, described memory module is for storing the detection of scanning
Object information.
By technique scheme, by memory module, the testing result information of scanning is stored, thus ensure
In the case of some LANs are tolerable, the testing result information of scanning can be preserved, good at network condition
In the case of again to scanning testing result information upload record.
Preferably, described scanner is connected with control module by USB interface, and described GPRS module is gone here and there by RS232
Row communication interface is connected with control module.
By technique scheme, being connected with scanner by USB interface, GPRS module is connect by RS232 serial communication
Mouth is connected with control module, it is ensured that the stability of data transmission.
Preferably, described control module uses 32 ARM microprocessors.
By technique scheme, ARM microprocessor can meet the effect of technique scheme, and cost is relatively low, profit
Maintenance and maintenance in the later stage.
Preferably, infrared detection unit, the performance element being located on detection of agricultural products instrument is also included；
Described infrared detection unit is used for detecting whether infrared light is cut off to export infrared detection signal；
Described performance element is coupled to infrared detection unit and detects signal with receiving infrared-ray；
When described infrared detection unit detects that infrared light is cut off, described performance element is in response to infrared detection
Signal can be activated to control detection of agricultural products instrument；Otherwise, detection of agricultural products instrument cannot be activated.
By technique scheme, the principle detected by LED light source group due to detection of agricultural products instrument, in LED light source group
During being constantly activated, the reduction in LED light source group service life will be made, thus be arranged on by infrared detection unit
On detection of agricultural products instrument, only when testing staff cuts off the infrared light that infrared detection unit sends, detection of agricultural products instrument is
Can be activated, thus avoid testing staff's maloperation that detection of agricultural products instrument is activated when not detecting, cause LED light source group
The reduction in service life.
Preferably, described infrared detection unit includes that RF transmitter and infrared receiver, described infrared ray are sent out
Emitter includes 555 chips, the first resistance, the second resistance, the first electric capacity and infrared transmitting tube, and one end of the second resistance is coupled to electricity
Source VCC, the other end is coupled to one end of the first resistance, and the other end of the first resistance is coupled to one end of the first electric capacity, the first electricity
The other end ground connection held, the octal of 555 chips and four feet are coupled to power supply VCC, seven feet of 555 chips be coupled to the first resistance with
On junction point between second resistance, six feet of 555 chips and two feet are all coupled between the first resistance and the first electric capacity, and 555
Three feet of chip are coupled to ground connection after infrared transmitting tube.
By technique scheme, using above-mentioned RF transmitter, circuit structure is simple, it is simple to the later stage safeguards,
Low cost, RF transmitter launches the good stability of infrared light.
Preferably, described infrared receiver include infrared receiving tube, the 3rd electric capacity, the first diode, the 6th resistance,
Seven resistance, the 8th resistance and comparator, the plus earth of infrared receiving tube, negative electrode is coupled to one end of the 3rd electric capacity, the 3rd electricity
The other end held is coupled to the anode of the first diode, and the negative electrode of the first diode is coupled to one end of the 8th resistance, the 8th electricity
The other end of resistance is coupled to the end of oppisite phase of comparator, and one end of the 6th resistance is coupled to voltage VDD, and the other end is coupled to comparator
In-phase end, one end of the 7th resistance is coupled on the junction point between the 6th resistance and comparator, other end ground connection, comparator
Outfan be coupled to performance element.
By technique scheme, using above-mentioned infrared receiver, circuit structure is simple, it is simple to the later stage safeguards,
Low cost, infrared receiver receives the good stability of infrared light.
Preferably, described performance element includes that switch element and executive component, described switch element are coupled to infrared ray inspection
Surveying unit and detect signal, and output switching signal with receiving infrared-ray, described executive component is coupled to switch element and opens to receive
OFF signal, and can be activated to control detection of agricultural products instrument in response to switching signal.
By technique scheme, integrated circuit is simpler, and it is more convenient to use, and the simplest circuit is more prone to
Maintenance and maintenance.
Preferably, described performance element is coupled with the instruction list for indicating detection of agricultural products instrument whether can be activated
Unit.
By technique scheme, detection of agricultural products instrument can be activated state and indicate, if detection of agricultural products instrument
Being in and can be activated state, indicating member can intuitively be pointed out to testing staff, makes the use more hommization of detection of agricultural products instrument,
Also avoid causing the waste of testing staff's working time.
Preferably, described indicating member realizes instruction by light-emitting component.
By technique scheme, lamplight pointing is more directly perceived to the indicating effect of testing staff, also will not be to detection people
Member's operation interferes and diverts one's attention.
In sum, this utility model in contrast to having the beneficial effect that of prior art and detects knot by scanner to having
Really the paper sheet label of information is scanned, thus by control module by the testing result information of scanning by GPRS module warp
GPRS antenna, thus carry out record by cordless communication network transmission to background server, testing result information is carried out in real time
Record.
Accompanying drawing explanation
Fig. 1 is embodiment one and the system block diagram of embodiment two；
Fig. 2 is the circuit theory diagrams of infrared detection unit, performance element.
Reference: 1, print module；2, GPRS module；3, control module；4, scanner；5, GPRS antenna；6, storage
Module；7, infrared detection unit；71, RF transmitter；72, infrared receiver；8, performance element；9, indicating member；
10, power module；11, background server；R1, the first resistance；R2, the second resistance；C1, the first electric capacity；L1, infrared transmitting tube；
L2, infrared receiving tube；C3, the 3rd electric capacity；D1, the first diode；R6, the 6th resistance；R7, the 7th resistance；R8, the 8th resistance；
N1, comparator.
Detailed description of the invention
Below in conjunction with accompanying drawing, this utility model is described in further detail.
Embodiment one:
A kind of detection of agricultural products instrument, as it is shown in figure 1, include print module 1, GPRS module 2, control module 3 and scanning
Rifle 4；Control module 3, is used for controlling print module 1, GPRS module 2 and scanner 4 and works；Print module 1, is connected to control mould
Block 3, for printing the paper sheet label with testing result information；Scanner 4, is connected to control module 3, is used for scanning paper mark
The testing result information signed；Control module 3, is additionally operable to the testing result information of scanning is transferred to GPRS module 2；GPRS mould
Block 2, is connected to control module 3, for obtaining the testing result information of scanning, and this information is passed through GPRS antenna 5 through wireless
Communication network transmission carries out record to background server 11.
Print module 1 is the mini-printer being placed on detection of agricultural products instrument, can the detection of detection of agricultural products instrument be tied
Really information is printed as paper sheet label.
The high-tech product that scanner 4 is combined closely as technology such as optics, machinery, electronics, software application, can will scheme
Sheet, photo, film are scanned to all kinds of drawing figures and document, and are connected with control module 3 by USB serial ports
Connect, it is possible to send data to control module 3.Wherein, connect between scanner 4 and control module 3 and have A/D converter,
For the analogue signal that scanner 4 scans being converted to the digital signal that can be identified by control module 3.
Control module 3 uses the ARM microprocessor of 32, and control module 3 is arranged on the inside of detection of agricultural products instrument, from
And realize print module 1, scanner 4, the work of GPRS module 2, control print module 1 active print and go out there is testing result
The paper sheet label of information, and control scanner 4 and work, is scanned paper sheet label, will the testing result information transmission of scanning
To GPRS module 2, testing result information (digital signal) transmission of scanning is transmitted by control module 3 to GPRS module 2.
After control module 3 obtains the testing result information of scanning, control GPRS module 2 is worked by control module 3, GPRS
Module 2 is called for short general packet radio service technology, can be connected with control module 3, in GPRS module 2 by RS232 interface
Being provided with GPRS antenna 5, be used for transmitting wireless data, GPRS antenna 5 is connected with background server 11 by cordless communication network；
Thus (the testing result information of scanning is numeral receive the testing result information of the scanning of control module 3 in GPRS module 2 after
Signal), through GPRS antenna 5, the testing result information of scanning is transferred to background server 11 by cordless communication network, after
Station server 11 can use computer, thus background server 11 carries out record to the testing result information of scanning, to facilitate in real time
The testing result information of writing scan, to store, it is ensured that data will not be lost；Due to paper have be difficult to ensure deposit, easily damaged
Characteristic, the data of real-time update, it is to avoid paper testing staff return detection operating room way in, cause paper damage and
Testing result information on paper is difficult to.
Embodiment two:
On the basis of embodiment one, as it is shown in figure 1, also include the memory module 6 being connected to control module 3, storage
Module 6 is for storing the testing result information of scanning.Memory module 6 uses storage chip, storage chip and control module 3 phase
Even, after paper sheet label is scanned by scanner 4, the testing result information of scanning is just transmitted to storing core by control module 3
Sheet preserves.On mountain area and other places, when wireless signal is more weak, GPRS module 2 cannot be attached with background server 11, passes through
Storage chip temporarily stores testing result information, when wireless signal meets transmission conditions, then the detection in storage chip is tied
Really information is uploaded to background server 11 and carries out record.
Embodiment three:
On the basis of embodiment two, as in figure 2 it is shown, also include the infrared detection list being located on detection of agricultural products instrument
Unit 7, performance element 8；Infrared detection unit 7 is used for detecting whether infrared light is cut off to export infrared detection signal；Hold
Row unit 8 is coupled to infrared detection unit 7 and detects signal with receiving infrared-ray；When infrared ray detector unit 7 detects infrared
When light is cut off, performance element 8 can be activated to control detection of agricultural products instrument in response to infrared detection signal；Otherwise, agricultural production
Product detector cannot be activated.
Infrared detection unit 7 includes RF transmitter 71 and infrared receiver 72, and RF transmitter 71 includes
555 chips, the first resistance R1, the second resistance R2, the first electric capacity C1 and infrared transmitting tube L1, one end of the second resistance R2 is coupled to
Power supply VCC, the other end is coupled to one end of the first resistance R1, and the other end of the first resistance R1 is coupled to the one of the first electric capacity C1
Holding, the other end ground connection of the first electric capacity C1, the octal of 555 chips and four feet are coupled to power supply VCC, and seven feet of 555 chips couple
On junction point between the first resistance R1 and the second resistance R2, six feet of 555 chips and two feet are all coupled to the first resistance R1
And between the first electric capacity C1, three feet of 555 chips are coupled to ground connection after infrared transmitting tube L1.Connecting RF transmitter 71
After power supply, three foot output duty cycle about 1:5, frequency at 555 chips are the square wave of 1kHz, in order to encourage infrared transmitting tube L1
Launch infrared light pulse.
Infrared receiver 72 include infrared receiving tube L2, the 3rd electric capacity C3, the first diode D1, the 6th resistance R6,
Seven resistance R7, the 8th resistance R8 and comparator N1, the plus earth of infrared receiving tube L2, negative electrode is coupled to the one of the 3rd electric capacity C3
End, the other end of the 3rd electric capacity C3 is coupled to the anode of the first diode D1, and the negative electrode of the first diode D1 is coupled to the 8th electricity
One end of resistance R8, the other end of the 8th resistance R8 is coupled to the end of oppisite phase of comparator N1, and one end of the 6th resistance R6 is coupled to electricity
Pressure VDD, the other end is coupled to the in-phase end of comparator N1, and one end of the 7th resistance R7 is coupled to the 6th resistance R6 and comparator N1
Between junction point on, other end ground connection, the outfan of comparator N1 is coupled to performance element 8.
6th resistance R6 and the 7th resistance R7 constitutes bleeder circuit, and the in-phase end for comparator N1 provides reference voltage value,
Reference voltage value is determined by the ratio that the 6th resistance R6 is shared in voltage VDD；When infrared receiving tube L2 receives infrared
Electric current can be produced when penetrating the infrared light that pipe L1 sends, and along with infrared light is strong from weak change, electric current also can be followed from little change big, from
And make the voltage of the 8th resistance R8 become big, so that the end of oppisite phase voltage of comparator N1 gradually rises；Voltage when end of oppisite phase
During more than the reference voltage value of in-phase end, the outfan output low level signal of comparator N1；Otherwise, when infrared receiving tube L2 does not has
Receive infrared light or infrared light the most weak time, the end of oppisite phase voltage of comparator N1 is close to zero, and now comparator N1's is defeated
Go out end output high level signal；Wherein the first diode D1 plays the effect of rectification, and the 4th electric capacity C4 plays the effect of filtering, the
Nine resistance R9 play the effect of current limliting, excessive for the output electric current preventing comparator N1.
Performance element 8 includes switch element and executive component, and it is red to receive that switch element is coupled to infrared detection unit 7
Outside line detection signal, and output switching signal, executive component is coupled to switch element to receive switching signal, and in response to switch
Signal can be activated to control detection of agricultural products instrument.Switch element is the audion Q1 of NPN type, and executive component is relay K M1,
The base stage of audion Q1 is connected on the outfan of comparator N1, and one end of relay K M1 coil is connected to power supply VCC, another
End is connected on the colelctor electrode of audion Q1, and the transmitter ground connection of audion Q1, the normally opened contact switch series of relay K M1 is associated in
On the current supply circuit of detection of agricultural products instrument and power module 10.Power module 10 is the work electricity for providing detection of agricultural products instrument
Pressure.Switch SB1 is the start button of detection of agricultural products instrument.
Embodiment four:
On the basis of embodiment three, as in figure 2 it is shown, be coupled with on performance element 8 for indicating detection of agricultural products instrument
The indicating member 9 whether being activated.Indicating member 9 realizes instruction by light-emitting component.Light-emitting component is light emitting diode
LED1, LED 1 is connected in parallel in relay K M1, thus when audion Q1 turns on, LED 1 is corresponding
Obtain electroluminescence, give testing staff the instruction that detection of agricultural products instrument can be activated.
Work process:
Testing staff uses finger to cut off the infrared light that RF transmitter 71 sends on detection of agricultural products instrument sidewall, makes
Obtain infrared receiver 72 and receive infrared light so that the infrared detection signal of comparator N1 output high level to audion Q1
Base stage, audion Q1 turns on, and relay K M1 obtains electric, the normally opened contact of relay K M1 Guan Bi with conducting detection of agricultural products instrument with
Current supply circuit between power module 10 so that detection of agricultural products instrument can be activated；And now LED 1 obtains electric
Luminescence, gives testing staff the instruction that detection of agricultural products instrument can be activated；Otherwise, when testing staff does not cut off infrared light, than
The base stage of the infrared detection signal of output low level to audion Q1, audion Q1 are ended by relatively device N1, and relay K M1 is lost
Electricity, the normally opened contact of relay K M1 disconnects so that detection of agricultural products instrument cannot be activated.
After detection of agricultural products instrument completes detection, printed by print module 1 by control module 3 and there is testing result
The paper sheet label of information, testing staff passes through scanner 4 and scans the testing result information on paper sheet label, and control module 3 will be swept
The testing result information transmission GPRS module 2 retouched, the inspection that GPRS module 2 will be scanned through cordless communication network by GPRS antenna 5
Survey object information is uploaded to background server 11 and carries out record so that the testing result information of detection of agricultural products instrument is entered in real time
Row is uploaded, record, it is to avoid the loss of testing result information.
The above is only exemplary embodiment of the present utility model, not for limiting protection model of the present utility model
Enclosing, protection domain of the present utility model is determined by appended claim.
Claims (10)
1. a detection of agricultural products instrument, is characterized in that: includes print module (1), GPRS module (2), control module (3) and sweeps
Retouch rifle (4)；
Described control module (3), is used for controlling print module (1), GPRS module (2) and scanner (4) work；
Described print module (1), is connected to control module (3), for printing the paper sheet label with testing result information；
Described scanner (4), is connected to control module (3), for scanning the testing result information on paper sheet label；
Described control module (3), is additionally operable to the testing result information of scanning is transferred to GPRS module (2)；
Described GPRS module (2), is connected to control module (3), for obtaining the testing result information of scanning, and this information is led to
Cross GPRS antenna (5) and carry out record through cordless communication network transmission to background server (11).
Detection of agricultural products instrument the most according to claim 1, is characterized in that: also include the storage being connected to control module (3)
Module (6), described memory module (6) is for storing the testing result information of scanning.
Detection of agricultural products instrument the most according to claim 1, is characterized in that: described scanner (4) passes through USB interface and control
Module (3) is connected, and described GPRS module (2) is connected with control module (3) by RS232 serial communication interface.
Detection of agricultural products instrument the most according to claim 1, is characterized in that: described control module (3) uses 32 ARM miniature
Processor.
Detection of agricultural products instrument the most according to claim 1, is characterized in that: also include being located on detection of agricultural products instrument is infrared
Line detector unit (7), performance element (8)；
Described infrared detection unit (7) is used for detecting whether infrared light is cut off to export infrared detection signal；
Described performance element (8) is coupled to infrared detection unit (7) and detects signal with receiving infrared-ray；
When described infrared detection unit (7) detects that infrared light is cut off, described performance element (8) is examined in response to infrared ray
Survey signal and can be activated to control detection of agricultural products instrument；Otherwise, detection of agricultural products instrument cannot be activated.
Detection of agricultural products instrument the most according to claim 5, is characterized in that: described infrared detection unit (7) includes infrared
Line emitter (71) and infrared receiver (72), described RF transmitter (71) include 555 chips, the first resistance (R1),
Second resistance (R2), the first electric capacity (C1) and infrared transmitting tube (L1), one end of the second resistance (R2) is coupled to power supply VCC, separately
One end is coupled to one end of the first resistance (R1), and the other end of the first resistance (R1) is coupled to one end of the first electric capacity (C1), the
The other end ground connection of one electric capacity (C1), the octal of 555 chips and four feet are coupled to power supply VCC, and seven feet of 555 chips are coupled to
On junction point between one resistance (R1) and the second resistance (R2), six feet and two feet of 555 chips are all coupled to the first resistance
And between the first electric capacity (C1), three feet of 555 chips are coupled to infrared transmitting tube (L1) ground connection afterwards (R1).
Detection of agricultural products instrument the most according to claim 5, is characterized in that: described infrared receiver (72) includes infrared connecing
Closed tube (L2), the 3rd electric capacity (C3), the first diode (D1), the 6th resistance (R6), the 7th resistance (R7), the 8th resistance (R8) with
Comparator (N1), the plus earth of infrared receiving tube (L2), negative electrode is coupled to one end of the 3rd electric capacity (C3), the 3rd electric capacity (C3)
The other end be coupled to the anode of the first diode (D1), the negative electrode of the first diode (D1) is coupled to the one of the 8th resistance (R8)
End, the other end of the 8th resistance (R8) is coupled to the end of oppisite phase of comparator (N1), and one end of the 6th resistance (R6) is coupled to voltage
VDD, the other end is coupled to the in-phase end of comparator (N1), and one end of the 7th resistance (R7) is coupled to the 6th resistance (R6) and compares
On junction point between device (N1), other end ground connection, the outfan of comparator (N1) is coupled to performance element (8).
Detection of agricultural products instrument the most according to claim 5, is characterized in that: described performance element (8) include switch element with
Executive component, described switch element is coupled to infrared detection unit (7) and detects signal, and output switch letter with receiving infrared-ray
Number, described executive component is coupled to switch element to receive switching signal, and in response to switching signal to control detection of agricultural products
Instrument can be activated.
Detection of agricultural products instrument the most according to claim 5, is characterized in that: described performance element is coupled with for referring on (8)
Show the indicating member (9) whether detection of agricultural products instrument can be activated.
Detection of agricultural products instrument the most according to claim 9, is characterized in that: described indicating member (9) is real by light-emitting component
Now indicate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620616672.XU CN205749481U (en) | 2016-06-21 | 2016-06-21 | A kind of detection of agricultural products instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620616672.XU CN205749481U (en) | 2016-06-21 | 2016-06-21 | A kind of detection of agricultural products instrument |
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| Publication Number | Publication Date |
|---|---|
| CN205749481U true CN205749481U (en) | 2016-11-30 |
Family
ID=57383163
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| Application Number | Title | Priority Date | Filing Date |
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| CN201620616672.XU Active CN205749481U (en) | 2016-06-21 | 2016-06-21 | A kind of detection of agricultural products instrument |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111497461A (en) * | 2020-05-26 | 2020-08-07 | 广东星创众谱仪器有限公司 | Intelligent machine for edible agricultural product qualification certificate and working method thereof |
| CN112903623A (en) * | 2021-01-28 | 2021-06-04 | 沈阳祥宝科技有限公司 | Infrared detection surface harmful substance detection system |
-
2016
- 2016-06-21 CN CN201620616672.XU patent/CN205749481U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111497461A (en) * | 2020-05-26 | 2020-08-07 | 广东星创众谱仪器有限公司 | Intelligent machine for edible agricultural product qualification certificate and working method thereof |
| CN112903623A (en) * | 2021-01-28 | 2021-06-04 | 沈阳祥宝科技有限公司 | Infrared detection surface harmful substance detection system |
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