CN206627149U - Detect refrigerator - Google Patents
Detect refrigerator Download PDFInfo
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- CN206627149U CN206627149U CN201720266306.0U CN201720266306U CN206627149U CN 206627149 U CN206627149 U CN 206627149U CN 201720266306 U CN201720266306 U CN 201720266306U CN 206627149 U CN206627149 U CN 206627149U
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- signal
- circuit
- beverage
- preset value
- comparison
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Abstract
The utility model discloses one kind to detect refrigerator, includes multiple pallets, is provided with pallet：Signal projector, anti-error circuit, distance sensing devices and switch element.It is placed on by beverage on pallet, detected by pressure sensor device, when detect no beverage or be drunk it is out-of-date, pressure sensor device can send comparison signal, checked again inside anti-error circuit, eliminate someone and the situation that beverage takes up and puts back to is caused into false alert, after confirmation, output a control signal to on-off circuit；At the same time, range sensor can detect to the beverage being placed on pallet, the distance between detector bottom and range sensor, avoid cup and other items from misplacing on pallet and weight almost build-up of pressure sensor None- identified.When by all confirming beverage after above multiple check using falling, signal occurs for the on-off circuit enabling signal transmitter that switches on power；Conversely, signal does not occur.
Description
Technical field
A kind of provisional beverage storage device is the utility model is related to, more particularly to a kind of detection refrigerator.
Background technology
Vending machine for beverage is commercially popularized at present, because it is kept an eye on without personnel, by buyer voluntarily
The mode of coin provides corresponding beverage to buyer.
However, in occasions such as some hotels, KTV, the coin operated vending machine of this kind of use does not apply to simultaneously, than
Such as in KTV, when needing drinks, beverage, it is necessary to oneself calling service person of client, then waiter enters according to the demand of client
Row dispatching.Again such as in hotel, it is necessary to which cleanup crew just can know that after entering inspection after the beverage in hotel is drunk up,
So as to be supplemented and charging.Several situations above are required for putting into larger human cost, and for the experience of client
It is not very good.
Utility model content
The purpose of this utility model is to provide a kind of detection refrigerator, and it can carry out automatic detection to the beverage being placed on it
Whether it has been used by a person.
Above-mentioned technical purpose of the present utility model technical scheme is that：
One kind detection refrigerator, includes multiple pallets, is provided with the pallet：
Signal projector, a power supply is connected to, the signal to be changed for launching beverage on pallet；
Pressure sensor device, for detecting beverage weight on pallet, when gravity is less than first preset value, output one the
One comparison signal；
Anti-error circuit, is coupled in pressure sensor device, to the situation of change according to the first comparison signal in preset time
Export a control signal；
Distance sensing devices, for detecting the cup depth of beverage bottom, when detecting distance is less than second preset value,
Export one second comparison signal；
Switch element, in response to control signal and the second comparison signal, to control lead between power supply and signal projector,
It is disconnected；Include the first switch circuit and second switch circuit of parallel connection, the first switch circuit is coupled in the anti-error circuit, institute
State second switch circuit and be coupled in the distance sensing devices.
It is arranged such, beverage is placed on pallet, detected by pressure sensor device, is not drunk when detecting
Material has been drunk out-of-date, and pressure sensor device can send comparison signal, be checked again inside anti-error circuit, eliminates
The situation that beverage takes up and puts back to is caused false alert by someone, after confirmation, outputs a control signal to switch element；
This simultaneously, range sensor can detect to the beverage being placed on pallet, between detector bottom and range sensor away from
From, avoid cup and other items from misplacing on pallet and in the case of weight almost build-up of pressure sensor None- identified, it is logical
Signal projector can be played by crossing the identification of range sensor.When by all confirming beverage using falling after above multiple check
, switch element switch on power enabling signal transmitter occur signal；Conversely, signal does not occur.
More preferably, the pressure sensor device includes：
Pressure sensor, for detecting Item Weight on pallet, export a detection signal；
First comparison circuit, the first detection signal is received, the amplitude and for the first detection signal
The size of one preset value, export first comparison signal.
It is arranged such, realizes the detection to beverage weight, and judge to realize by the first comparison circuit.
More preferably, first comparison circuit includes：
First preset value generative circuit, output one are used for the first preset value compared with the first detection signal；
First comparator, its input in the same direction receive the first detection signal, and it is pre- that reverse input end receives described first
If value, output end exports first comparison signal.
It is arranged such, the first preset value function is manually entered to realize by the first preset value generative circuit, passes through change
The size of first preset value starts weight to regulate and control it, selects to detect the beverage of different gravity with this.
More preferably, the anti-error circuit includes：
Delay circuit, its input are coupled to first comparison circuit, prolong in response to the first comparison signal and output one
When comparison signal；
With door, there is two inputs and an output end, the output end of one input and delay circuit couples, separately
The output end of one input and comparison circuit couples, its output end output control signal.
Be arranged such, when pressure sensor device detect beverage by by when, the first comparison signal input time delay circuit and with
In one input of door, when in the time set in delay circuit, when comparison signal does not change, with gate output terminal
Output control switch unit switches on power the delay comparison signal of enabling signal transmitter；Conversely, with gate output terminal output control
The delay comparison signal of switch element deenergization not enabling signal transmitter.
More preferably：The distance sensing devices include：
Range sensor, for detecting the cup depth of beverage bottom, export one second detection signal；
Second comparison circuit, second detection signal is received, the amplitude and for second detection signal
The size of two preset values, export second comparison signal.
It is arranged such, realizes the detection adjusted the distance, and judge and identify to realize by the second comparison circuit.
More preferably, second comparison circuit includes：
Second preset value generative circuit, output one are used for the second preset value compared with second detection signal；
Second comparator, its input in the same direction receive the first detection signal, and it is pre- that reverse input end receives described first
If value, output end exports first comparison signal.
It is arranged such, the second preset value function is manually entered to realize by the second preset value generative circuit, passes through change
The size of second preset value starts distance to regulate and control it, selects to detect the beverage of different shell shapes with this.
More preferably：The first preset value generative circuit includes first resistor and the first potentiometer, first resistor
One end connection supply voltage, the other end is connected to the movable end of first potentiometer, a fixing end of the first potentiometer and
The reverse input end connection of first comparator, another fixing end ground connection；
The second preset value generative circuit includes second resistance and the second potentiometer, one end connection power supply of second resistance
Voltage, the other end are connected to the movable end of second potentiometer, a fixing end of the second potentiometer and the second comparator it is anti-
To input connection, another fixing end ground connection.
It is arranged such, the composition of the first preset value generative circuit and the second preset value generative circuit is identical, is all to pass through tune
The movable end of nodal potential device adjusts the resistance sizes on potentiometer, so as to adjust the resistance ratio of first resistor and potentiometer, enters
And different size of comparison signal is inputted into the input of comparator.
More preferably：The first switch circuit includes 3rd resistor and the first triode, the 3rd resistor
One end is connected to the output end of first comparator, and the other end is connected to the base stage of the first triode, the hair of first triode
Emitter-base bandgap grading is connected to signal projector, and the colelctor electrode of the first triode is connected to power supply；
The second switch circuit includes the 4th resistance and the second triode, and one end of the 4th resistance is connected to second
The output end of comparator, the other end are connected to the base stage of the second triode, and the emitter stage of second triode is connected to signal
Transmitter, the colelctor electrode of the second triode are connected to power supply.
It is arranged such, the principle of first switch circuit and second switch circuit is identical with composition, is rung by triode
The mode of corresponding signal is answered to carry out the switching of control circuit, so as to the switching electricity of control signal transmitter.
More preferably：The circular standing groove being engaged with placing beverage is provided with the pallet, the pressure passes
Sensor is located at the bottom of standing groove, and the range sensor is embedded at the bottom center of circle of standing groove.
It is arranged such, beverage is placed by the setting of standing groove, positioning, the effect of anti-rock can be played, in addition, can
Detected with the place for causing range sensor deeper to beverage outer casing bottom depression, same test point, reduce maloperation.
In summary, the utility model has the advantages that：Whether can be used with beverage on automatic detection pallet
Fall, and can interpolate that whether beverage has that to be opened, whether be drunk and be placed and be no be a variety of situations such as beverage bottle, has
Higher automatic decision ability, reduce the cost of manual service.
Brief description of the drawings
Fig. 1 is example structure schematic diagram；
Fig. 2 is the structural representation of pallet in embodiment；
Fig. 3 is the sectional view of the pallet of embodiment；
Fig. 4 is the circuit theory diagrams of embodiment.
In figure, 1, pallet；2nd, standing groove；3rd, pressure sensor；4th, range sensor；11st, the first preset value generative circuit；
12nd, the first comparison circuit；13rd, switch element；14th, anti-error circuit；15th, the second preset value generative circuit；16th, the second comparison is electric
Road.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing.
This specific embodiment is only that it is not to limitation of the present utility model, ability to explanation of the present utility model
Field technique personnel can make the modification of no creative contribution to the present embodiment as needed after this specification is read, but
As long as all protected in the scope of protection of the utility model by Patent Law.
One kind detection refrigerator, as shown in figure 1, including multiple horizontally disposed pallets 1,1 rectangular tabular of pallet, is used for
Beverage is placed, with exemplified by aluminum canned drinks, but being not limited to aluminum canned drinks in the present embodiment.It is provided with pallet 1 multiple circular
Standing groove 2, the size of standing groove 2 are slightly larger than the external diameter of aluminum canned drinks, and the height of standing groove 2 is 2cm.
It is provided with above-mentioned pallet 1：
One pressure sensor device, reference picture 4, include the comparison circuit 12 of pressure sensor 3 and first, such as Fig. 2 and Fig. 3 institutes
Show, pressure sensor 3 is embedded at the bottom of standing groove 2, to detect Item Weight on pallet 1, exports a detection signal；
First comparison circuit 12 is used to compare the amplitude of detection signal letter compared with the size of preset value and output first
Number, it includes the first preset value generative circuit 11 and first comparator A1.Wherein, the first preset value generative circuit 11 output one is used
In the first preset value compared with first detection signal, it includes first resistor R1 and the first potentiometer R2, the first potentiometer R2
For a swept resistance, first resistor R1 one end connection supply voltage, the other end is connected to the first potentiometer R2 movable end, the
An one potentiometer R2 fixing end is connected with first comparator A1 reverse input end, another fixing end ground connection.First comparator
A1 input in the same direction is connected with pressure sensor 3 to receive first detection signal, and output end exports the first comparison signal.
One anti-error circuit 14, to export a control signal according to the situation of change of the first comparison signal in preset time,
Reference picture 4, including delay circuit and above-mentioned first comparison circuit 12 is coupled to door, the input of delay circuit, in response to
One comparison signal simultaneously exports a delay comparison signal；There is two inputs and an output end with door, one input with
The output end coupling of delay circuit, the output end coupling of another input and comparison circuit, its output end export a control signal.
One distance sensing devices, for detecting the cup depth of beverage bottom, reference picture 4, including range sensor 4 and
Two comparison circuits 16, wherein, as shown in Figures 2 and 3, range sensor 4 is embedded at the bottom of standing groove 2, and range sensor 4
Set location is located at the center of circle of standing groove 2, and it is used to detecting the distance between beverage bottom and range sensor 4, and exports one the
Two detection signals；
Second comparison circuit 16 includes the second preset value generative circuit 15 and the second comparator A2, the second preset value generation electricity
Road 15 includes second resistance R3 and the second potentiometer R5, second resistance R3 one end connection supply voltage, and the other end is connected to institute
State the second potentiometer R5 movable end, a second potentiometer R5 fixing end connects with the second comparator A2 reverse input end,
Another fixing end ground connection.
One switch element 13, to control switching between power supply and signal projector, reference picture 4, including be arranged in parallel
One on-off circuit and second switch circuit.Wherein, first switch circuit includes 3rd resistor R4 and the first triode Q1, and described the
Three resistance R4 one end is connected to first comparator A1 output end, and the other end is connected to the first triode Q1 base stage, described
First triode Q1 emitter stage is connected to signal projector, and the first triode Q1 colelctor electrode is connected to power supply；
The second switch circuit includes the 4th resistance R6 and the second triode Q2, one end connection of the 4th resistance R6
In the second comparator A2 output end, the other end is connected to the second triode Q2 base stage, the transmitting of the first triode Q1
Pole is connected to signal projector, and the second triode Q2 colelctor electrode is connected to power supply.
When in use, beverage is placed on the standing groove 2 on pallet 1, now pressure sensor 3, which detects, is placed on support
Beverage on disk 1, that is, the amplitude of the first detection signal detected are pre- more than second more than the first preset value, the second detection signal
If value, now the first triode Q1 is not turned on, i.e., is not turned between signal projector and power supply；
When beverage is picked up by people, that is, the amplitude of the first detection signal detected is less than the first preset value, and now first
Comparison signal input time delay circuit and with an input of door, when in the time set in delay circuit, first compares
When signal does not change（When i.e. beverage is not taken back in standing groove 2）, with gate output terminal output enabling signal transmitting
The delay comparison signal of device, delay comparison signal cause circuit turn-on, i.e. power supply and signal after being input in the first triode Q1
Transmitter connects enabling signal transmitter transmission signal；
When in the time set in delay circuit, when comparison signal changes, i.e., beverage being placed back in into placement
When in groove 2, the delay comparison signal of enabling signal transmitter is not exported with gate output terminal；
After beverage is picked up by people, if other articles are placed into standing groove 2 and when weight is more than the first preset value,
Distance between beverage bottom and range sensor 4 can be detected by range sensor 4, when article is not beverage, few symbols
The article of aluminum canned drinks bottom notch depth is closed, now detecting distance is less than the second preset value, and the second comparator A2 can send the
Two comparison signals, the second comparison signal cause circuit turn-on, i.e. power supply and signal projector after being input in the second triode Q2
Connect enabling signal transmitter transmission signal.
Claims (9)
1. one kind detection refrigerator, includes multiple pallets（1）, it is characterized in that, the pallet（1）On be provided with：
Signal projector, a power supply is connected to, for launching pallet（1）The signal that upper beverage changes；
Pressure sensor device, for detecting pallet（1）Upper beverage weight, when gravity is less than first preset value, output one the
One comparison signal；
Anti-error circuit（14）, pressure sensor device is coupled in, to the situation of change according to the first comparison signal in preset time
Export a control signal；
Distance sensing devices, for detecting the cup depth of beverage bottom, when detecting distance is less than second preset value, output
One second comparison signal；
Switch element（13）, in response to control signal and the second comparison signal, to control lead between power supply and signal projector,
It is disconnected；Include the first switch circuit and second switch circuit of parallel connection, the first switch circuit is coupled in the anti-error circuit
（14）, the second switch circuit is coupled in the distance sensing devices.
2. detection refrigerator according to claim 1, it is characterized in that, the pressure sensor device includes：
Pressure sensor（3）, for detecting pallet（1）Upper Item Weight, export a first detection signal；
First comparison circuit（12）, the first detection signal is received, the amplitude and for the first detection signal
The size of one preset value, export first comparison signal.
3. detection refrigerator according to claim 2, it is characterized in that, first comparison circuit（12）Including：
First preset value generative circuit（11）, output one is for the first preset value compared with the first detection signal；
First comparator, its input in the same direction receive the first detection signal, and reverse input end receives first preset value,
Output end exports first comparison signal.
4. detection refrigerator according to claim 2, it is characterized in that, the anti-error circuit（14）Including：
Delay circuit, its input are coupled to first comparison circuit（12）, prolong in response to the first comparison signal and output one
When comparison signal；
With door, there is two inputs and an output end, the output end of one input and delay circuit couples, another defeated
Enter end and the output end of comparison circuit couples, its output end output control signal.
5. detection refrigerator according to claim 3, it is characterized in that, the distance sensing devices include：
Range sensor（4）, for detecting the cup depth of beverage bottom, export one second detection signal；
Second comparison circuit（16）, second detection signal is received, the amplitude and for second detection signal
The size of two preset values, export second comparison signal.
6. detection refrigerator according to claim 5, it is characterized in that, second comparison circuit（16）Including：
Second preset value generative circuit（15）, output one is for the second preset value compared with second detection signal；
Second comparator, its input in the same direction receive the first detection signal, and reverse input end receives first preset value,
Output end exports first comparison signal.
7. detection refrigerator according to claim 6, it is characterized in that, the first preset value generative circuit（11）Including first
Resistance and the first potentiometer, one end connection supply voltage of first resistor, the other end are connected to the activity of first potentiometer
End, a fixing end of the first potentiometer connect with the reverse input end of first comparator, another fixing end is grounded；
The second preset value generative circuit（15）Including second resistance and the second potentiometer, one end connection power supply of second resistance
Voltage, the other end are connected to the movable end of second potentiometer, a fixing end of the second potentiometer and the second comparator it is anti-
To input connection, another fixing end ground connection.
8. detection refrigerator according to claim 1, it is characterized in that：The first switch circuit includes 3rd resistor and first
Triode, one end of the 3rd resistor are connected to the output end of first comparator, and the other end is connected to the base of the first triode
Pole, the emitter stage of first triode are connected to signal projector, and the colelctor electrode of the first triode is connected to power supply；
The second switch circuit includes the 4th resistance and the second triode, and one end of the 4th resistance is connected to second and compared
The output end of device, the other end are connected to the base stage of the second triode, and the emitter stage of second triode is connected to signal transmitting
Device, the colelctor electrode of the second triode are connected to power supply.
9. detection refrigerator according to claim 5, it is characterized in that：The pallet（1）On be provided with place beverage match
The circular standing groove of conjunction（2）, the pressure sensor（3）Located at standing groove（2）Bottom, the range sensor（4）It is embedded
In standing groove（2）The bottom center of circle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720266306.0U CN206627149U (en) | 2017-03-17 | 2017-03-17 | Detect refrigerator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720266306.0U CN206627149U (en) | 2017-03-17 | 2017-03-17 | Detect refrigerator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206627149U true CN206627149U (en) | 2017-11-10 |
Family
ID=60209428
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720266306.0U Expired - Fee Related CN206627149U (en) | 2017-03-17 | 2017-03-17 | Detect refrigerator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206627149U (en) |
-
2017
- 2017-03-17 CN CN201720266306.0U patent/CN206627149U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171110 Termination date: 20180317 |