CN109427135A - Automatic vending machine is put in storage detection circuit and detection method with selling commodity - Google Patents
Automatic vending machine is put in storage detection circuit and detection method with selling commodity Download PDFInfo
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- CN109427135A CN109427135A CN201710775883.7A CN201710775883A CN109427135A CN 109427135 A CN109427135 A CN 109427135A CN 201710775883 A CN201710775883 A CN 201710775883A CN 109427135 A CN109427135 A CN 109427135A
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- infrared
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- infrared remote
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- 238000001514 detection method Methods 0.000 title claims abstract description 25
- 239000011324 bead Substances 0.000 claims description 32
- 230000005611 electricity Effects 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 4
- 230000000903 blocking effect Effects 0.000 claims description 2
- 230000007812 deficiency Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000003760 hair shine Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G07—CHECKING-DEVICES
- G07F—COIN-FREED OR LIKE APPARATUS
- G07F11/00—Coin-freed apparatus for dispensing, or the like, discrete articles
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V8/00—Prospecting or detecting by optical means
- G01V8/10—Detecting, e.g. by using light barriers
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geophysics (AREA)
- Control Of Vending Devices And Auxiliary Devices For Vending Devices (AREA)
Abstract
The present invention relates to a kind of automatic vending machines to be put in storage detection circuit with selling commodity, it is characterized in that, it include: the first power supply, second source, infrared transmitter, infrared transmitter includes infrared transmitter anode pin and infrared transmitter negative pin, and infrared transmitter anode pin is electrically connected with the first positive pole, and infrared transmitter negative pin is electrically connected with the first power cathode；Infrared remote receiver, including infrared remote receiver anode pin, infrared remote receiver negative pin and signal pins, infrared remote receiver anode pin is electrically connected with second source anode, infrared remote receiver negative pin is electrically connected with second source cathode, and infrared remote receiver is for receiving the infrared ray from infrared transmitter.Signal output electrode is electrically connected between second source anode and the signal pins of infrared remote receiver.MCU processor is connect with signal output electrode signal.Low in cost, strong antijamming capability of the invention.
Description
Technical field
The present invention relates to automatic vending machine technical field, especially a kind of automatic vending machine detects electricity with selling commodity and put in storage
Road and detection method.
Background technique
For automatic vending machine when selling commodity, after shopping people buys commodity, commodity are pushed into shipment bin by commodity carrying out device,
After commodity are pushed into shipment bin by commodity carrying out device, shopping people takes commodity away.But commodity enter after shipment bin, it may
Since various disturbing factors cannot be detected, in current automatic vending machine industry, need a kind of low in cost, anti-
Whether the strong detection commodity of interference performance enter the detection circuit of shipment bin.
Summary of the invention
Based on this, it is an object of the present invention to a kind of automatic vending machine use is provided in place of overcome the deficiencies in the prior art
It sells commodity to put in storage detection circuit, which is characterized in that including the first power supply, first power supply includes the first positive pole and the
One power cathode；Second source, the second source include second source anode and second source cathode；Infrared transmitter, institute
Stating infrared transmitter includes that positive pin and negative pin, positive pin and the first positive pole of the infrared transmitter are electrically connected
It connects, negative pin is electrically connected with the first power cathode；Infrared remote receiver, the infrared remote receiver draw including positive pin, cathode
The positive pin of foot and signal pins, the infrared remote receiver is electrically connected with second source anode, negative pin and second source
Cathode electrical connection, the infrared remote receiver is for receiving the infrared ray from the infrared transmitter.Signal output electrode, it is described
Signal output electrode is electrically connected between the second source anode and the signal pins of the infrared remote receiver.MCU processor,
The MCU processor is connect with the signal output electrode signal.
After infrared transmitter is powered, the infrared ray of infrared transmitter transmitting is received by infrared remote receiver, and infrared remote receiver connects
Infrared signal is demodulated after receiving infrared signal, does not have shelter to block between RF transmitter and infrared receiver
When, the demodulated signal of infrared remote receiver is high level signal；When thering is shelter to block between infrared remote receiver and infrared transmitter
When, the demodulated signal of infrared remote receiver is low level signal.The MCU processor connecting with infrared remote receiver signal receives infrared
After the demodulated signal of receiver, logic calculation and judgement are carried out to demodulated signal, so that it may determine that infrared transmitter connects with infrared
Whether have shelter, that is, enter shipment bin when selling commodity if receiving between device.
It preferably, further include LED visible light lamp bead, the LED visible light lamp bead is electrically connected to the second source anode
Between the infrared remote receiver.
When infrared remote receiver sends out high level signal, LED visible light lamp bead cannot be lighted, infrared receiver is sent out
When low level signal, LED visible light lamp bead can be made to issue the interrupted visible light of high frequency.It is infrared easily to identify between more
Whether there is shelter between transmitter and infrared remote receiver.
It further, further include current-limiting resistance, the current-limiting resistance is electrically connected to the second source anode and described
Between LED visible light lamp bead.
Maximum current when current-limiting resistance can prevent infrared remote receiver from exporting low level signal is greater than LED visible light lamp bead
Normally electric current, and burn out LED visible light lamp bead.
Preferably, the voltage of first power supply is DC3V-DC5V.
Preferably, the on/off timing of first power supply is that meet make-to-break ratio be 7:10-13:10, and the signal period is
The 38KHz modulation level signal of 840-1560 μ s.
Further, the infrared signal that the infrared transmitter launches outward out is consistent with on/off timing.
Emit infrared ray using the modulated signal of 38KHz, and there is certain on-off time sequence parameter, is different from general
Infrared source signal, have certain anti-interference ability.
It is another object of the present invention to overcome the deficiencies of the prior art and provide a kind of automatic vending machine with selling commodity
The detection method for detection circuit of putting in storage, which is characterized in that the described method comprises the following steps:
S701: power supply is accessed between the positive pin and negative pin of infrared transmitter；
S702: infrared transmitter launches the consistent infrared signal of on-off timing with power supply；
S703: infrared remote receiver receives and demodulates the infrared signal that infrared transmitter is launched, and infrared signal is not blocked
When, the make-to-break ratio of demodulated signal is consistent with the infrared signal that infrared transmitter is launched, when infrared signal is blocked, demodulation letter
Number be high level signal；
S704: demodulated signal is sent to MCU processor by infrared remote receiver；
S705:MCU processor carries out timing and logic judgment, judges whether infrared signal is blocked.
After infrared transmitter is powered, the infrared ray of infrared transmitter transmitting is received by infrared remote receiver, and infrared remote receiver connects
Infrared signal is demodulated after receiving infrared signal, does not have shelter to block between RF transmitter and infrared receiver
When, the demodulated signal of infrared remote receiver is high level signal；When thering is shelter to block between infrared remote receiver and infrared transmitter
When, the demodulated signal of infrared remote receiver is low level signal.The MCU processor connecting with infrared remote receiver signal receives infrared
After the demodulated signal of receiver, logic calculation and judgement are carried out to demodulated signal, so that it may determine that infrared transmitter connects with infrared
Whether have shelter, that is, enter shipment bin when selling commodity if receiving between device.
Preferably, when infrared signal is not blocked, LED visible light lamp bead issues the interrupted of high frequency can be infrared by light
When line signal is blocked, LED visible light lamp bead does not work.
Sightless low level signal and high level signal are converted into the bright of LED visible light lamp bead and do not worked, makes it more
Add simple and clear.
The principle of the present invention, effect are further illustrated below with reference to above-mentioned technical proposal:
1. further include LED visible light lamp bead, the LED visible light lamp bead is electrically connected to the second source anode and described red
Between outer receiver.When infrared remote receiver sends out high level signal, LED visible light lamp bead, infrared receiver cannot be lighted
When sending out low level signal, LED visible light lamp bead can be made to issue the interrupted visible light of high frequency.Easily to know between more
It is other whether to have shelter between infrared transmitter and infrared remote receiver.
2. infrared transmitter transmitting infrared ray is using the modulated signal of 38KHz, and when there is certain on-off
Order parameter is different from general infrared source signal, has certain anti-interference ability.
Detailed description of the invention
Fig. 1, which is automatic vending machine described in the embodiment of the present invention, to be put in storage the structural schematic diagram of detection circuit with selling commodity；
Fig. 2 is the flow chart for selling commodity infrared detection method of automatic vending machine described in the embodiment of the present invention.
Description of symbols:
First positive pole 11, the first power cathode 12, infrared transmitter 2, infrared transmitter anode pin 21, infrared emission
Device negative pin 22, shelter 3, second source anode 41, second source cathode 42, infrared remote receiver 5, infrared remote receiver anode
Pin 51, infrared remote receiver negative pin 52, signal pins 53, current-limiting resistance 6, LED visible light lamp bead 7, signal output electrode
8。
Specific embodiment
In order to facilitate the understanding of those skilled in the art, being done further in detail below in conjunction with attached drawing and embodiment to the present invention
Thin description:
Such as Fig. 1, a kind of automatic vending machine is put in storage detection circuit with selling commodity, which is characterized in that including the first power supply, described
One power supply includes the first positive pole 11 and the first power cathode 12；Second source, the second source include second source just
Pole 41 and second source cathode 42；Infrared transmitter 2, the infrared transmitter 2 include infrared transmitter anode pin 21 and red
External transmitter negative pin 22, the infrared transmitter anode pin 21 are electrically connected with the first positive pole 11, infrared transmitter
Negative pin 22 is electrically connected with the first power cathode 12；Infrared remote receiver 5, the infrared remote receiver 5 include infrared remote receiver just
Pole pin 51, infrared remote receiver negative pin 52 and signal pins 53, the infrared remote receiver anode pin 51 and second source
Anode 41 is electrically connected, and infrared remote receiver negative pin 52 is electrically connected with second source cathode 42, and the infrared remote receiver 5 is for connecing
Receive the infrared ray from the infrared transmitter 2.Signal output electrode 8, the signal output electrode 8 are electrically connected to described second
Between positive pole 41 and the signal pins 53 of the infrared remote receiver 5.MCU processor, the MCU processor and the signal
The connection of 8 signal of output electrode.
After infrared transmitter 2 is powered, the infrared ray that infrared transmitter 2 emits is received by infrared remote receiver 5, infrared remote receiver
5 receive infrared signal after demodulate infrared signal, do not have between RF transmitter and infrared receiver shelter 3 screening
When gear, the demodulated signal of infrared remote receiver 5 is high level signal；When having shelter between infrared remote receiver 5 and infrared transmitter 2
3 when blocking, and the demodulated signal of infrared remote receiver 5 is low level signal.It is connect with infrared remote receiver 5 by signal output electrode 8
MCU processor receive the demodulated signal of infrared remote receiver 5 after, logic calculation and judgement are carried out to demodulated signal, so that it may
It determines whether there is shelter 3 between infrared transmitter 2 and infrared remote receiver 5, that is, enters shipment bin when selling commodity.
One of embodiment further includes LED visible light lamp bead 7, and the LED visible light lamp bead 7 is electrically connected to described
Between two positive poles 41 and the infrared remote receiver 5.
When not having 3 i.e. commodity of shelter between infrared transmitter 2 and infrared remote receiver 5, infrared remote receiver 5 issues low electricity
Flat demodulated signal, to make the interrupted visible light of the visible LED lamp bead being attached thereto sending high frequency；In infrared transmitter 2
Have between infrared remote receiver 5 shelter 3 i.e. commodity when, infrared remote receiver 5 persistently exports high level, to cannot make visible
Light LED lamp bead shines.
One of embodiment further includes current-limiting resistance 6, and the current-limiting resistance 6 is electrically connected to the second source anode
Between 41 and the LED visible light lamp bead 7.
When not having shelter 3 between infrared transmitter 2 and infrared remote receiver 5, infrared remote receiver 5 passes through signal pins 52
The low level current of sending can be higher than the normally electric current of LED visible light lamp bead 7, the low electricity that then infrared remote receiver 5 issues
Ordinary telegram stream can pass through current-limiting resistance 6, so that electric current becomes smaller, avoid damage LED visible light lamp bead 7.
One of embodiment, the voltage of first power supply are DC3V-DC5V.
One of embodiment, the on/off timing of first power supply are 7:10-13:10 to meet make-to-break ratio, letter
Number period is the 38KHz modulation level signal of 840-1560 μ s.
One of embodiment, the infrared signal and on/off timing one that the infrared transmitter 2 launches outward out
It causes.
Such as Fig. 2, a kind of automatic vending machine is put in storage the detection method of detection circuit with selling commodity, which is characterized in that described
Method the following steps are included:
S701: power supply is accessed between the positive pin and negative pin of infrared transmitter 2；
S702: infrared transmitter 2 launches the consistent infrared signal of on-off timing with power supply；
S703: infrared remote receiver 5 receives and demodulates the infrared signal that infrared transmitter 2 is launched, and infrared signal is not hidden
When gear, the make-to-break ratio of demodulated signal is consistent with the infrared signal that infrared transmitter 2 is launched, when infrared signal is blocked, solution
Tune signal is high level signal；
S704: demodulated signal is sent to MCU processor by signal output electrode 8 by infrared remote receiver 5；
S705:MCU processor carries out timing and logic judgment, judges whether infrared signal is blocked.
One of embodiment, when infrared signal is not blocked, LED visible light lamp bead 7 issues the interrupted of high frequency can
By light, when infrared signal is blocked, LED visible light lamp bead 7 does not work.
After infrared recipient receives the infrared light of the sending of infrared transmitter 2, infrared remote receiver 5 can issue low level
Demodulated signal, so that LED visible light lamp bead 7 issues the interrupted visible light of high frequency；When infrared transmitter 2 and infrared remote receiver
When having shelter 3 to block between 5, when infrared remote receiver 5 can issue the demodulated signal of high level, LED visible light lamp bead 7 is not at this time
It can shine.Make testing result more intuitive by the way that LED visible light lamp bead 7 is arranged.
The embodiments described above only express several embodiments of the present invention, and the description thereof is more specific and detailed, but simultaneously
It cannot therefore be construed as limiting the scope of the patent.It should be pointed out that coming for those of ordinary skill in the art
It says, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to protection of the invention
Range.Therefore, the scope of protection of the patent of the invention shall be subject to the appended claims.
Claims (8)
1. a kind of automatic vending machine is put in storage detection circuit with selling commodity characterized by comprising
First power supply, first power supply include the first positive pole and the first power cathode；
Second source, the second source include second source anode and second source cathode；
Infrared transmitter, the infrared transmitter include infrared transmitter anode pin and infrared transmitter negative pin, described
Infrared transmitter anode pin is electrically connected with the first positive pole, the infrared transmitter negative pin and the first power cathode electricity
Connection；
Infrared remote receiver, the infrared remote receiver include infrared remote receiver anode pin, infrared remote receiver negative pin and signal
Pin, the infrared remote receiver anode pin are electrically connected with second source anode, the infrared remote receiver negative pin and second
Power cathode electrical connection, the infrared remote receiver is for receiving the infrared ray from the infrared transmitter；
Signal output electrode, the signal output electrode are electrically connected to the letter of the second source anode and the infrared remote receiver
Between number pin；
MCU processor, the MCU processor are connect with the signal output electrode signal.
2. automatic vending machine according to claim 1 is put in storage detection circuit with selling commodity, which is characterized in that further include
LED visible light lamp bead, the LED visible light lamp bead are electrically connected between the second source anode and the infrared remote receiver.
3. automatic vending machine according to claim 2 is put in storage detection circuit with selling commodity, which is characterized in that further include limit
Leakage resistance, the current-limiting resistance are electrically connected between the second source anode and the LED visible light lamp bead.
4. automatic vending machine according to claim 1 is put in storage detection circuit with selling commodity, which is characterized in that described first
The voltage of power supply is DC3V-DC5V.
5. automatic vending machine according to claim 1 is put in storage detection circuit with selling commodity, which is characterized in that described first
The on/off timing of power supply is 7:10-13:10 to meet make-to-break ratio, and the 38KHz that the signal period is 840-1560 μ s modulates electricity
Ordinary mail number.
6. automatic vending machine according to claim 5 is put in storage detection circuit with selling commodity, which is characterized in that described infrared
The infrared signal that transmitter launches outward out is consistent with on/off timing.
7. a kind of automatic vending machine according to claim 1 is put in storage the detection method of detection circuit with selling commodity, special
Sign is, the described method comprises the following steps:
S701: power supply is accessed between the positive pin and negative pin of infrared transmitter；
S702: infrared transmitter launches the consistent infrared signal of on-off timing with power supply；
S703: infrared remote receiver receives and demodulates the infrared signal that infrared transmitter is launched, and infrared signal is not blocked
When, the make-to-break ratio of demodulated signal is consistent with the infrared signal that infrared transmitter is launched, when infrared signal is blocked, demodulation letter
Number be high level signal；
S704: demodulated signal is sent to MCU processor by infrared remote receiver；
S705:MCU processor carries out timing and logic judgment, judges whether infrared signal is blocked.
8. detection method according to claim 7, which is characterized in that step S703 further include: infrared signal not by
When blocking, LED visible light lamp bead issues the interrupted of high frequency can be by light, when infrared signal is blocked, and LED visible light lamp bead is not
It is bright.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710775883.7A CN109427135A (en) | 2017-08-31 | 2017-08-31 | Automatic vending machine is put in storage detection circuit and detection method with selling commodity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710775883.7A CN109427135A (en) | 2017-08-31 | 2017-08-31 | Automatic vending machine is put in storage detection circuit and detection method with selling commodity |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109427135A true CN109427135A (en) | 2019-03-05 |
Family
ID=65505604
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|---|---|---|---|
| CN201710775883.7A Pending CN109427135A (en) | 2017-08-31 | 2017-08-31 | Automatic vending machine is put in storage detection circuit and detection method with selling commodity |
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| CN (1) | CN109427135A (en) |
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