CN106525964A - Portable household food safety detection system - Google Patents
Portable household food safety detection system Download PDFInfo
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- CN106525964A CN106525964A CN201611101803.1A CN201611101803A CN106525964A CN 106525964 A CN106525964 A CN 106525964A CN 201611101803 A CN201611101803 A CN 201611101803A CN 106525964 A CN106525964 A CN 106525964A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
- G01N29/02—Analysing fluids
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
- G01N29/04—Analysing solids
Abstract
The invention discloses a portable household food safety detection system. The system comprises a receiving module, a transmitting module, a signal amplification circuit, a storage device, an A/D conversion module, a signal conditioning circuit, an oscillating circuit, a single chip microcomputer, a USB interface, a display module, a wireless transmission module and a power module. The portable household food safety detection system adopts a weak ultrasonic technology, has no damage to to-be-detected food and performs all-around detection on the to-be-detected food, thereby improving detection precision; furthermore, multiple data transmission modes are set, data transmission between the system and host units such as a mobile phone, a computer and the like can be completed, besides, a stable power source is arranged, and a user can download and update a local data reference library in a wireless or wired manner according to the demands of the to-be-detected food and can also upload local measurement data in combination with usage experience to a cloud for reference of other users.
Description
Technical field
The present invention relates to a kind of monitoring cloud system, specifically a kind of portable home-use food safety detection system.
Background technology
In recent years, food-safety problem is always one of numerous people's livelihood topics that people are concerned about, therefore food safety detection
Technology also becomes the most important thing.With the development of various food safety detection technologies, ultrasonic technology is with its unique advantage
Occur in field of food safety.Ultrasonic technology is a kind of acoustic characteristic analytic process, and its principle is ultrasound wave in detected medium
During middle propagation, the change of the acoustic characteristic and interior tissue of medium can produce certain impact to the propagation of ultrasound wave, by right
The detection of ultrasound wave degree of susceptibility and situation will be seen that dielectric behavior and structure change.Ultrasound examination is the most commonly used
Three measurement parameters are：The velocity of sound, decay, impedance.Ultrasound wave is divided into two classes：Intense ultrasonic wave and weak ultrasound wave.At present, strong ultrasound
Ripple is high due to energy, thus it is possible to vary the physical attribute of medium, is widely used in Perishing prevention, the guarantor of poultry product of fruit and vegetable product
It is fresh to wait application.Weak ultrasound wave is low due to energy, and with not damaged, non-intrusion type, need not to prepare sample and quick detection etc. excellent
Point, is mainly used in fat content detection, the detection of sugar in milk product at present, hydrocarbon mixture detection etc. in cereal product
In medium, the detection of concrete a certain kind composition, does not appear in the application of food synthetic quality context of detection.
The equipment in home food inspection rarely useful in the market, therefore ordinarily resident have purchased nothing after food is gone home
Method learns bought food quality, brings great inconvenience to life.
The content of the invention
It is an object of the invention to provide a kind of portable home-use food safety detection system, to solve above-mentioned background technology
The problem of middle proposition.
For achieving the above object, the present invention provides following technical scheme：
A kind of portable home-use food safety detection system, including receiver module, transmitter module, signal amplification circuit, memorizer,
A/D modular converters, signal conditioning circuit, oscillating circuit, single-chip microcomputer, USB interface, display module, wireless transport module and power supply
Module, the single-chip microcomputer connect memorizer, A/D modular converters, signal conditioning circuit, oscillating circuit, USB interface, display respectively
Module, wireless transport module and power module, memorizer are also connected with signal amplification circuit, and signal amplification circuit is also respectively connected with A/
D modular converters and receiver module, oscillating circuit are also connected with signal conditioning circuit, and signal conditioning circuit is also connected with transmitter module.
As further scheme of the invention：Core of the single-chip microcomputer as whole device, coordinating each circuit has bar not
Work disorderlyly；Oscillating circuit produces the ultrasonic frequency vibration square wave of user's setting under enabling signal control；Signal condition electricity
Road can be amplified to the high frequency square wave for sending, to promote the emitting head in transmitter module to send ultrasound wave, signal amplification circuit
Process can be amplified to the echo and echo that receive head reception in receiver module；The number that memorizer can be collected to this
According to being stored, while storing the reference value of the numerous food that user downloads；The environment that data comparison module is measured according to this
Parameter and food safety refer to database data, and this measurement data is analyzed, and provide safe, suspicious or unsafe analysis knot
Really；Power control circuit provides reliable and stable working power for whole device, and display module is used for the directly perceived aobvious of testing result
Show, while the input of data, derivation, the inquiry of historical data and other associative operations can also be carried out, power module is to single-chip microcomputer
Stable running voltage is provided, USB interface easily can carry out data transmission, wireless transport module is used for and mobile phone, computer
Etc. carrying out wireless data upload.
As further scheme of the invention：The power module includes diode D1, resistance R1, accumulator E and bears
Carry H, it is characterised in that the positive pole of anode connection accumulator E of the diode D1, the pin 5 of chip IC 1 and chip IC 2
Pin 5, the negative electrode connection electric capacity C1 of diode D1, resistance R1 and resistance R3, the other end connection resistance R2 of resistance R1, resistance R5
With the emitter stage of audion V2, the other end connection resistance R9 of electric capacity C1, the negative pole of accumulator E, a fixation of potentiometer RP1
End, a fixing end of potentiometer RP2, the sliding end of potentiometer RP2, the anode of diode D4, the anode of diode D5, two poles
The pin 2 of the negative electrode of pipe D6, load H, the pin 2 of chip IC 1 and chip IC 2, the anode connecting triode V1's of diode D6
Emitter stage, the other end connection resistance R4 and the pin 3 of chip IC 1 of resistance R2, the other end connection potentiometer RP2's of resistance R4
Another fixing end, the other end and the pin 1 of chip IC 1 of the other end connection resistance R9 of resistance R3, the pin 4 of chip IC 1
The negative electrode of connection diode D2, the other end of the anode connection resistance R5 of diode D2, the anode of diode D3 and audion V1
Base stage, audion V1 colelctor electrode connection resistance R6, the base stage of the other end connecting triode V2 of resistance R6, audion V2's
The other end of colelctor electrode connection resistance R7, resistance R8, buzzer B and load H, the other end of resistance R7 connect the moon of two grades of steel D
The pin 1 of pole and chip IC 2, the negative electrode of diode D3 connect the pin 4 of chip IC 2, the connection resistance R8 of pin 3 of chip IC 2
The other end, the sliding end of potentiometer RP1 and potentiometer RP1 another fixing end, buzzer B the other end connection diode
The negative electrode of D5.
As further scheme of the invention：Model MC68HC11A8 of the single-chip microcomputer.
As further scheme of the invention：The oscillating circuit is square wave generation circuit.
As further scheme of the invention：The signal amplification circuit selects μ A741 signal amplification chips.
Compared with prior art, the invention has the beneficial effects as follows：The portable home-use food safety detection system of the present invention is adopted
Weak ultrasonic technology is used, to food not damaged to be measured, and omnibearing detection is carried out to food to be measured, improve detection essence
Degree；And the mode of various data transfers is also provided with, can be completed and the data between the host computer such as mobile phone, computer are passed
Pass, while being provided with stable power supply, user can be downloaded by the way of wirelessly or non-wirelessly according to food demand to be measured
Native data reference library is updated, also the machine measurement data experience can be used in combination and be uploaded to high in the clouds, referred to for other users.
Description of the drawings
Fig. 1 is the overall block diagram of the present invention.
Circuit diagrams of the Fig. 2 for power module.
Specific embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than the embodiment of whole.It is based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of creative work is not made
Embodiment, belongs to the scope of protection of the invention.
Fig. 1-2 is referred to, in the embodiment of the present invention, a kind of portable home-use food safety detection system, including reception mould
Block, transmitter module, signal amplification circuit, memorizer, A/D modular converters, signal conditioning circuit, oscillating circuit, single-chip microcomputer, USB
Interface, display module, wireless transport module and power module, the single-chip microcomputer connect memorizer, A/D modular converters, letter respectively
Number modulate circuit, oscillating circuit, USB interface, display module, wireless transport module and power module, memorizer are also connected with signal
Amplifying circuit, signal amplification circuit are also respectively connected with A/D modular converters and receiver module, and oscillating circuit is also connected with signal condition electricity
Road, signal conditioning circuit are also connected with transmitter module.
Core of the single-chip microcomputer as whole device, coordinates each circuit and works without any confusion；Oscillating circuit is starting letter
Number control is lower produces the ultrasonic frequency vibration square wave that user is arranged；Signal conditioning circuit can be put to the high frequency square wave for sending
Greatly, to promote the emitting head in transmitter module to send ultrasound wave, signal amplification circuit can be received to the reception head in receiver module
Echo and echo be amplified process；Memorizer can be stored to the data that this collects, while storing under user
The reference value of the numerous food of load；The ambient parameter and food safety that data comparison module is measured according to this refers to database data,
This measurement data is analyzed, safe, suspicious or unsafe analysis result is given；Power control circuit is carried for whole device
For reliable and stable working power, display module is used for the display directly perceived of testing result, while can also carry out the input of data, lead
Go out, the inquiry of historical data and other associative operations, power module provides stable running voltage to single-chip microcomputer, and USB interface can
Easily to carry out data transmission, wireless transport module is used for and mobile phone, computer etc. carry out wireless data upload.
Power module includes diode D1, resistance R1, accumulator E and load H, it is characterised in that the diode D1's
The pin 5 of the positive pole, the pin 5 of chip IC 1 and chip IC 2 of anode connection accumulator E, the negative electrode connection electric capacity of diode D1
C1, resistance R1 and resistance R3, the other end connection resistance R2 of resistance R1, the emitter stage of resistance R5 and audion V2, electric capacity C1's
Other end connection resistance R9, the negative pole of accumulator E, a fixing end of potentiometer RP1, fixing end, an electricity of potentiometer RP2
The position sliding end of device RP2, the anode of diode D4, the anode of diode D5, the negative electrode of diode D6, load H, chip IC 1
The pin 2 of pin 2 and chip IC 2, the emitter stage of the anode connecting triode V1 of diode D6, the other end connection electricity of resistance R2
The pin 3 of resistance R4 and chip IC 1, the other end of resistance R4 connect another fixing end of potentiometer RP2, the other end of resistance R3
The pin 1 of the other end of connection resistance R9 and chip IC 1, the pin 4 of chip IC 1 connect the negative electrode of diode D2, diode D2
Anode connection resistance R5 the other end, the anode of diode D3 and audion V1 base stage, audion V1 colelctor electrode connection
The base stage of the other end connecting triode V2 of resistance R6, resistance R6, the colelctor electrode connection resistance R7 of audion V2, resistance R8, honeybee
The other end of ring device B and load H, the other end of resistance R7 connect the negative electrode of two grades of steel D and the pin 1 of chip IC 2, diode D3
Negative electrode connect the pin 4 of chip IC 2, the connection other end of resistance R8 of pin 3 of chip IC 2, the sliding end of potentiometer RP1 and
Another fixing end of potentiometer RP1, the other end of buzzer B connect the negative electrode of diode D5.
Model MC68HC11A8 of single-chip microcomputer.Oscillating circuit is square wave generation circuit.Signal amplification circuit selects μ A741
Signal amplification chip.
The present invention operation principle be：Core of the single-chip microcomputer as whole device, coordinates each circuit work without any confusion
Make；Oscillating circuit produces the ultrasonic frequency vibration square wave of user's setting under enabling signal control；Signal conditioning circuit can be right
The high frequency square wave of transmission is amplified, and to promote the emitting head in transmitter module to send ultrasound wave, signal amplification circuit can be docked
The echo and echo that receive head reception received in module is amplified process；Memorizer can be carried out to the data that this collects
Storage, while store the reference value of the numerous food that user downloads；Ambient parameter that data comparison module is measured according to this and
Food safety refers to database data, and this measurement data is analyzed, safe, suspicious or unsafe analysis result is given；Power supply
Control circuit provides reliable and stable working power for whole device, and display module is used for the display directly perceived of testing result, while
Input, derivation, the inquiry of historical data and other associative operations of data can also be carried out, power module provides stable to single-chip microcomputer
Running voltage, USB interface easily can carry out data transmission, and wireless transport module is used for and mobile phone, computer etc. carry out nothing
Line number is according to upload.
The operation principle of power module is as shown in Figure 2：Power stages of the audion V2 as oltage x current limiter, rises and adjusts
Effect.Chip IC 1 and chip IC 2 are used for arranging load H maximum charging voltages and maximum charging current, if it exceeds setting value,
Light emitting diode is lighted, and reminds you to note.Equally, when load H is reversed, buzzing reports to the police.The positive pole of accumulator E is accessed into one
Heavy-duty diode D1, prevents from burning circuit during connection error, and defeated people's power supply is obtained Jing after diode and two large bulk capacitance C1
To smooth voltage.Potentiometer R8, RP1 are in parallel with load H, and voltage compares acquirement by comparator IC2 with the reference voltage of 4.7V.When
When the 3 foot voltage of reverse input end of IC2 is less than 1 foot voltage of input in the same direction, comparator output high level, audion V1 conductings,
Base current is provided to V2, makes electric current charge.After after a while, cell voltage rises, more than the thresholding electricity that RP1 is arranged
Pressure, comparator output are changed into low level, and V1 and V2 cut-offs, battery stop charging, while the electricity that light emitting diode D3 is flow through by R5
Flow point is bright.
It is obvious to a person skilled in the art that the invention is not restricted to the details of above-mentioned one exemplary embodiment, Er Qie
In the case of spirit or essential attributes without departing substantially from the present invention, the present invention can be realized in other specific forms.Therefore, no matter
From the point of view of which point, embodiment all should be regarded as exemplary, and be nonrestrictive, the scope of the present invention is by appended power
Profit is required rather than described above is limited, it is intended that all in the implication and scope of the equivalency of claim by falling
Change is included in the present invention.Any reference in claim should not be considered as and limit involved claim.
Moreover, it will be appreciated that although this specification is been described by according to embodiment, not each embodiment is only wrapped
Containing an independent technical scheme, this narrating mode of description is only that those skilled in the art should for clarity
Using description as an entirety, the technical scheme in each embodiment can also Jing it is appropriately combined, form those skilled in the art
Understandable other embodiment.
Claims (6)
1. a kind of portable home-use food safety detection system, including receiver module, transmitter module, signal amplification circuit, storage
Device, A/D modular converters, signal conditioning circuit, oscillating circuit, single-chip microcomputer, USB interface, display module, wireless transport module and electricity
Source module, it is characterised in that the single-chip microcomputer connect respectively memorizer, A/D modular converters, signal conditioning circuit, oscillating circuit,
USB interface, display module, wireless transport module and power module, memorizer are also connected with signal amplification circuit, signal amplification circuit
A/D modular converters and receiver module is also respectively connected with, oscillating circuit is also connected with signal conditioning circuit, and signal conditioning circuit is also connected with
Transmitter module.
2. the portable home-use food safety detection system of one kind according to claim 1, it is characterised in that single-chip microcomputer conduct
The core of whole device, coordinates each circuit and works without any confusion；Oscillating circuit produces user under enabling signal control and sets
The ultrasonic frequency vibration square wave put；Signal conditioning circuit can be amplified to the high frequency square wave for sending, to promote transmitter module
In emitting head send ultrasound wave, signal amplification circuit can in receiver module receive head receive echo and echo carry out
Processing and amplifying；Memorizer can be stored to the data that this collects, while storing the reference of the numerous food that user downloads
Value；The ambient parameter and food safety that data comparison module is measured according to this refers to database data, and this measurement data is analyzed,
Provide safe, suspicious or unsafe analysis result；Power control circuit provides reliable and stable work electricity for whole device
Source, display module be used for testing result display directly perceived, while can also carry out the input of data, derivation, the inquiry of historical data with
And other associative operations, power module provides stable running voltage to single-chip microcomputer, and USB interface can easily carry out data biography
Defeated, wireless transport module is used for and mobile phone, computer etc. carry out wireless data upload.
3. the portable home-use food safety detection system of one kind according to claim 1, it is characterised in that the power supply mould
Block includes diode D1, resistance R1, accumulator E and load H, it is characterised in that anode connection accumulator E of the diode D1
Positive pole, the pin 5 of chip IC 1 and chip IC 2 pin 5, the negative electrode connection electric capacity C1 of diode D1, resistance R1 and resistance
The other end connection resistance R2 of R3, resistance R1, the emitter stage of resistance R5 and audion V2, the other end connection resistance of electric capacity C1
R9, the negative pole of accumulator E, a fixing end of potentiometer RP1, a fixing end of potentiometer RP2, the slip of potentiometer RP2
End, the anode of diode D4, the anode of diode D5, the negative electrode of diode D6, load H, the pin 2 of chip IC 1 and chip IC 2
Pin 2, the emitter stage of the anode connecting triode V1 of diode D6, the other end connection resistance R4 and chip IC 1 of resistance R2
Pin 3, the other end of resistance R4 connects another fixing end of potentiometer RP2, the other end connection resistance R9's of resistance R3
The pin 1 of the other end and chip IC 1, the pin 4 of chip IC 1 connect the negative electrode of diode D2, the anode connection electricity of diode D2
The base stage of the other end, the anode of diode D3 and audion V1 of resistance R5, colelctor electrode connection the resistance R6, resistance R6 of audion V1
Other end connecting triode V2 base stage, the colelctor electrode connection resistance R7 of audion V2, resistance R8, buzzer B and load H
The other end, the other end of resistance R7 connect the negative electrode of two grades of steel D and the pin 1 of chip IC 2, the negative electrode connection chip of diode D3
The pin 4 of IC2, the other end of the connection resistance R8 of pin 3 of chip IC 2, the sliding end of potentiometer RP1 and potentiometer RP1's are another
One fixing end, the other end of buzzer B connect the negative electrode of diode D5.
4. the portable home-use food safety detection system of one kind according to claim 1, it is characterised in that the single-chip microcomputer
Model MC68HC11A8.
5. the portable home-use food safety detection system of one kind according to claim 1, it is characterised in that the vibration electricity
Road is square wave generation circuit.
6. the portable home-use food safety detection system of one kind according to claim 1, it is characterised in that the signal is put
Big circuit selects μ A741 signal amplification chips.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611101803.1A CN106525964A (en) | 2016-12-05 | 2016-12-05 | Portable household food safety detection system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611101803.1A CN106525964A (en) | 2016-12-05 | 2016-12-05 | Portable household food safety detection system |
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| Publication Number | Publication Date |
|---|---|
| CN106525964A true CN106525964A (en) | 2017-03-22 |
Family
ID=58354786
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611101803.1A Pending CN106525964A (en) | 2016-12-05 | 2016-12-05 | Portable household food safety detection system |
Country Status (1)
| Country | Link |
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| CN (1) | CN106525964A (en) |
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Application publication date: 20170322 |