CN208902896U - A kind of automatic vending machine shipment detection device and automatic vending machine - Google Patents
A kind of automatic vending machine shipment detection device and automatic vending machine Download PDFInfo
- Publication number
- CN208902896U CN208902896U CN201821745927.8U CN201821745927U CN208902896U CN 208902896 U CN208902896 U CN 208902896U CN 201821745927 U CN201821745927 U CN 201821745927U CN 208902896 U CN208902896 U CN 208902896U
- Authority
- CN
- China
- Prior art keywords
- infrared pulse
- vending machine
- automatic vending
- microprocessor
- infrared
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Control Of Vending Devices And Auxiliary Devices For Vending Devices (AREA)
Abstract
The utility model discloses a kind of automatic vending machine shipment detection device and automatic vending machines, automatic vending machine shipment detection device includes microprocessor, infrared pulse transmitting unit, infrared pulse receiving unit and power module, the microprocessor is connected with infrared pulse transmitting unit, infrared pulse receiving unit respectively, the power supply output end of the power module is connected with microprocessor, infrared pulse transmitting unit, infrared pulse receiving unit respectively, the infrared pulse transmitting unit, infrared pulse receiving unit it is positioned opposite in automatic vending machine goods-out path on；Host computer and aforementioned automatic vending machine shipment detection device are installed in automatic vending machine.The utility model can accurately detect kinds of goods most in actual life at automatic vending machine shipment end, and scan frequency has the advantages that detection type is extensive, detection speed is fast, accurately height, structure are simple, easy to implement for detection up to Millisecond.
Description
Technical field
The utility model relates to automatic vending machines, and in particular to a kind of automatic vending machine shipment detection device and automatic vending
Machine.
Background technique
Automatic vending machine (Vending Machine, VEM) is to pay goods automatically after capable of paying according to the coin or barcode scanning of investment
Machine.Automatic vending machine is the commonly used equipment of business automation, it is not limited by time, place, can save manpower, conveniently
Transaction.It is a kind of completely new retailing form, the micro supermarket for the 24 HOUR ACCESS that is otherwise known as.According to selling goods, classification is mainly divided
It is three kinds: Drink dispenser, food automatic vending machine, comprehensive automation vending machine.According to relevant report, China in 2017 is certainly
Dynamic vending machine industry yield about 46.46 ten thousand, market maintenance about 500,000, and the growth trend of explosion type is presented, as certainly
The important component of dynamic vending machine, the accuracy of shipment detection and cost are all its one of key technologies for improving competitiveness,
Now automatic vending machine in the market generally uses finished product formula grating to sell detecting element as it, although this convenient, cost
Height, precision is relatively low, be generally only used for detection at a slow speed, 2cm3With the article of upper volume；There are also one is by microcomputer with
Fixed cycle scans goods-out path, and such mode improves detection range, but because of the unicity in its period, in practical applications
The failure that appearance is reported by mistake is more, and accuracy is not high, influences client's user satisfaction.
Utility model content
The technical problems to be solved in the utility model: in view of the above problems in the prior art, one kind is provided in automatic vending
Machine shipment end can accurately detect kinds of goods most in actual life, scan frequency up to Millisecond, detection type extensively,
Detect the automatic vending machine shipment detection device and automatic vending machine that speed is fast, detection is accurately high, structure is simple, easy to implement.
In order to solve the above-mentioned technical problem, the technical solution adopted in the utility model are as follows:
A kind of automatic vending machine shipment detection device, including microprocessor, infrared pulse transmitting unit, infrared pulse receive
Unit and power module, the microprocessor are connected with infrared pulse transmitting unit, infrared pulse receiving unit respectively, the electricity
The power supply output end of source module is connected with microprocessor, infrared pulse transmitting unit, infrared pulse receiving unit respectively, described red
Outer pulse emitting units, infrared pulse receiving unit it is positioned opposite in automatic vending machine goods-out path on.
Preferably, the infrared pulse transmitting unit includes logic encoder and a plurality of infrared pulse transmitting branch, described
The output end of microprocessor is connected by logic encoder with each infrared pulse transmitting branch.
Preferably, the infrared pulse transmitting branch includes the first resistor being sequentially connected, switch chip, infrared pulse hair
Penetrate transistor.
Preferably, the switch chip is transistor, and the base stage of the transistor passes through first resistor and logic encoder
Output end all the way be connected, emitter is connected by second resistance with base stage, it is electric that collector as output end passes sequentially through third
Resistance, infrared pulse ballistic transistor ground connection.
Preferably, a plurality of infrared pulse transmitting branch is arranged along the length direction of automatic vending machine goods-out path respectively
In the side of automatic vending machine goods-out path.
Preferably, the infrared pulse receiving unit includes and the infrared pulse transmitting branch infrared arteries and veins correspondingly
Receiving branch is rushed, the infrared pulse receiving branch is connected with the input terminal of microprocessor respectively.
Preferably, the infrared pulse receiving branch includes infrared pulse receiving crystal pipe, the 4th resistance and the 5th resistance,
The output end of the infrared pulse receiving crystal pipe is connected with the input terminal of microprocessor and by the 4th resistance and power module
Output end be connected, the power input of the infrared pulse receiving crystal pipe passes through the output end of the 5th resistance and power module
It is connected, parallel arrangement has at least one filter capacitor between output and ground of the infrared pulse receiving crystal pipe.
Preferably, the infrared pulse receiving unit further includes the pulse combination circuit of multiple input single output structure, described
The input terminal of pulse combination circuit is connected with the output end of each infrared pulse receiving branch, output end is connected with microprocessor.
Preferably, the pulse combination circuit includes multistage and gate logic device, and two of upper level and gate logic device
All the way input of the output as next stage and gate logic device of part, finally by the output end of most final stage and gate logic device and micro-
Processor is connected.
The utility model also provides a kind of automatic vending machine, the automatic vending machine ontology including having multiple goods-out paths,
Host computer and automatic vending machine shipment detection device above-mentioned be installed in the automatic vending machine ontology, the host computer and from
The microprocessor of dynamic vending machine shipment detection device is connected.
Compared to the prior art, the utility model has an advantage that the utility model includes microprocessor, infrared pulse
Transmitting unit, infrared pulse receiving unit and power module, microprocessor connect with infrared pulse transmitting unit, infrared pulse respectively
Receive unit be connected, infrared pulse transmitting unit, infrared pulse receiving unit it is positioned opposite in automatic vending machine goods-out path on,
When the kinds of goods of automatic vending machine pass through automatic vending machine goods-out path, infrared pulse transmitting unit, infrared arteries and veins will be blocked in
It rushes between receiving unit, causes infrared pulse receiving unit output signal to change to be detected by microprocessor, thus
It realizes automatic vending machine shipment detection, can accurately detect goods most in actual life at automatic vending machine shipment end
Product, scan frequency up to Millisecond, have detection type extensively, detection speed is fast, detection it is accurate it is high, structure is simple, embodiment party
Just the advantages of.
Detailed description of the invention
Fig. 1 is the circuit theory schematic diagram of the utility model embodiment.
Fig. 2 is the microprocessor interface schematic diagram in the utility model embodiment.
Fig. 3 is the circuit theory schematic diagram of infrared pulse transmitting unit in the utility model embodiment.
Fig. 4 is the logic encoder interface diagram in the utility model embodiment.
Fig. 5 is the electrical block diagram of a plurality of infrared pulse transmitting branch in the utility model embodiment.
Fig. 6 is the circuit theory schematic diagram of infrared pulse receiving unit in the utility model embodiment.
Fig. 7 is the electrical block diagram of pulse combiner circuit in the utility model embodiment.
Fig. 8 is the electrical block diagram of infrared pulse receiving branch in the utility model embodiment.
Fig. 9 is the electrical block diagram of power module in the utility model embodiment.
Marginal data: 1, microprocessor；2, infrared pulse transmitting unit；21, logic encoder；22, infrared pulse emits
Branch；3, infrared pulse receiving unit；31, infrared pulse receiving branch；32, pulse combination circuit；4, power module.
Specific embodiment
As shown in Figure 1, the present embodiment automatic vending machine shipment detection device includes microprocessor 1, infrared pulse transmitting list
Member 2, infrared pulse receiving unit 3 and power module 4, microprocessor 1 also respectively with infrared pulse transmitting unit 2, infrared pulse
Receiving unit 3 be connected, the power supply output end of power module 4 respectively with microprocessor 1, infrared pulse transmitting unit 2, infrared pulse
Receiving unit 3 is connected, infrared pulse transmitting unit 2, infrared pulse receiving unit 3 it is positioned opposite in automatic vending machine shipment it is logical
On road.When the kinds of goods of automatic vending machine pass through automatic vending machine goods-out path when, will be blocked in infrared pulse transmitting unit 2,
Between infrared pulse receiving unit 3,3 output signal of infrared pulse receiving unit is caused to change to be examined by microprocessor 1
It measures, to realize that automatic vending machine shipment detects, can accurately be detected at automatic vending machine shipment end big absolutely in actual life
Partial kinds of goods, scan frequency up to Millisecond, have detection type extensively, detection speed is fast, accurate high, the structure letter of detection
Single, advantage easy to implement.
As shown in Fig. 2, the microprocessor 1 in the present embodiment uses the single-chip microcontroller of model STM8S105C6T6, and wherein
Tetra- ports A0~A3 are connected as control output end mouthful with infrared pulse transmitting unit 2, and make by totally 10 ports by OUT8~OUT17
It is connected for detection input mouth with infrared pulse receiving unit 3.In addition, microprocessor 1 also can according to need using its alloytype
Number single-chip microcontroller or other kinds of microprocessor.The single-chip microcontroller of model STM8S105C6T6 is to be not less than 2F maxFrequency
The case where preparing corresponding scanning pulse, avoiding missing inspection article appearance, whereinF maxIt is sent for infrared pulse transmitting unit 2 infrared
The working frequency of pulse signal.46, No. 47 pins of microprocessor 1 are used to be connected with host computer, the communication process with upper seat in the plane
Using modbus485 standard agreement, for receiving the shipment information that host computer provides to determine the scanning pulse period.
As shown in figure 3, infrared pulse transmitting unit 2 includes logic encoder 21 and a plurality of infrared pulse transmitting branch 22,
The output end of microprocessor 1 is connected by logic encoder 21 with each infrared pulse transmitting branch 22.It is infrared in the present embodiment
Pulse emitting units 2 specifically include 10 infrared pulse transmitting branches 22, furthermore also can according to need adjustment infrared pulse hair
The quantity that unit 2 includes infrared pulse transmitting branch 22 is penetrated, is only possible to have an impact for detection integrity degree and precision.It is logical
A plurality of infrared pulse transmitting branch 22 is crossed, the precision of shipment detection is can be improved, is particularly suitable for longer goods-out path；Pass through
Logic encoder 21 drives a plurality of infrared pulse transmitting branch 22, so that it is less to occupy port on microprocessor, can be improved
The driving capability of microprocessor 1, but also can be effectively reduced the overall cost of circuit.
As shown in figure 4, logic encoder of the logic encoder 21 using model 74HC154PW, wherein 20~No. 23 are drawn
Foot is connected as its input port with tetra- control output ends mouthful A0~A3 of microprocessor 1；1~No. 10 pin is then used as it
Output port Y0~Y10 is connected with 10 infrared pulse transmitting branches 22 respectively.Fig. 5 show output port Y3~Y6 tetra- it is defeated
The schematic diagram of the corresponding four infrared pulse transmitting branches 22 of exit port, the present embodiment also include additional six infrared pulses hair
Branch 22 is penetrated, structure is identical as Fig. 5, omits herein.
In embodiment, infrared pulse transmitting branch 22 includes the first resistor being sequentially connected, switch chip, infrared pulse hair
Penetrate transistor.As shown in figure 5, by taking the corresponding infrared pulse transmitting branch 22 of output port Y3 as an example, infrared pulse transmitting branch
22 include first resistor RN1, switch chip Q8, the infrared pulse ballistic transistor D7 being sequentially connected.In the present embodiment, infrared arteries and veins
The infrared pulse ballistic transistor that ballistic transistor D7 specifically uses model LF5038 is rushed, which adopts
Infrared scanning pulse is exported with MMBT4403 extensive angle.It should be noted that the present embodiment first resistor RN1 is four infrared
Furthermore the shared resistance device of impulse ejection branch 22 also can according to need the purpose is to simplify circuit and improve integrated level
Independent first resistor is respectively adopted for four infrared pulse transmitting branches 22, principle is identical as the present embodiment.
As shown in figure 5, switch chip is transistor in the present embodiment, the base stage of transistor is compiled by first resistor and logic
The output end all the way of code device is connected, emitter is connected by second resistance with base stage, and collector passes sequentially through the as output end
Three resistance, infrared pulse ballistic transistor ground connection.By taking the corresponding infrared pulse transmitting branch 22 of output port Y3 as an example, switch core
The base stage of piece Q8 is connected by first resistor RN1 with the output port Y3 of logic encoder 21, emitter passes through second resistance R19
It is connected with base stage, collector passes sequentially through 3rd resistor R9, infrared pulse ballistic transistor D7 ground connection as output end.
In the present embodiment, a plurality of infrared pulse transmitting branch 22 is respectively along the length direction cloth of automatic vending machine goods-out path
It sets in the side of automatic vending machine goods-out path, can accurately be detected at automatic vending machine shipment end most in actual life
Kinds of goods.
As shown in fig. 6, infrared pulse receiving unit 3 includes and the one-to-one infrared pulse of infrared pulse transmitting branch 22
Receiving branch 31, infrared pulse receiving branch 31 are connected with the input terminal of microprocessor 1 respectively.In the present embodiment, infrared pulse
Receiving unit 3 specifically includes 10 infrared pulse receiving branch 31, if adjustment infrared pulse transmitting unit 2 includes infrared pulse
The quantity of transmitting branch 22, then needing corresponding adjustment infrared pulse receiving unit 3 includes the quantity of infrared pulse receiving branch 31,
To guarantee to correspond with infrared pulse transmitting branch 22.
As shown in fig. 7, infrared pulse receiving branch 31 includes infrared pulse receiving crystal pipe, the 4th resistance and the 5th electricity
Resistance, the output end of infrared pulse receiving crystal pipe are connected with the input terminal of microprocessor 1 and by the 4th resistance and power modules 4
Output end be connected, the power input of infrared pulse receiving crystal pipe passes through the output end phase of the 5th resistance and power module 4
Even, parallel arrangement has at least one filter capacitor between output and ground of infrared pulse receiving crystal pipe.With micro- place
For the corresponding infrared pulse receiving branch 31 of input port OUT8 for managing device 1, which includes infrared
Pulse receiving crystal pipe U8, the 4th resistance R15 and the 5th resistance R5, the output end U8 and micro process of infrared pulse receiving crystal pipe
The input terminal OUT8 of device 1 is connected and is connected by the 4th resistance R15 with the 5V output end of power module 4, and infrared pulse receives brilliant
The power input of body pipe U8 is connected by the 5th resistance R5 with the 5V output end of power module 4, infrared pulse receiving crystal pipe
Parallel arrangement has filter capacitor C24, C25 between output and ground of U8.In the present embodiment, infrared pulse receiving crystal
Pipe U8 specifically uses the infrared pulse receiving crystal pipe of model LF0038K.
As shown in fig. 6, infrared pulse receiving unit 3 further includes the pulse combination circuit 32 of multiple input single output structure, arteries and veins
The input terminal for rushing combiner circuit 32 is connected with the output end of each infrared pulse receiving branch 31,1 phase of output end and microprocessor
Even.By pulse combination circuit 32, the signal of each infrared pulse receiving branch 31 can be synthesized a signal, pass through hardware
Circuit obtains current automatic vending machine shipment testing result, for the mode that opposite microprocessor 1 is handled, reacts rapider,
Operating delay is less；And the output end signal of each infrared pulse receiving branch 31 is also used as space signal and exports to micro-
Processor 1, so that microprocessor 1 is used to confirm the verifying of detection signal, and the self-test to circuit structure.
As shown in figure 8, pulse combination circuit 32 includes multistage and gate logic device, and two of upper level and gate logic device
All the way input of the output as next stage and gate logic device of part, finally by the output end of most final stage and gate logic device and micro-
Processor 1 is connected.Referring to Fig. 8, in the present embodiment with gate logic device using 74HC32PW chip (U5A, U5B, U5C, U6A,
U6B, U6C, U6D, U7A, U7D), input signal OUT8, OUT9 input U5A carry out mutually and, OUT10, OUT9 input U5B carry out phase
With, the output of U5A, U5B input jointly U5C carry out mutually with；Input signal OUT12, OUT16 input U6A carry out mutually with, OUT13,
OUT14 input U6B mutually inputted jointly with, the output of U6A, U6B U6C carry out mutually with；The output of U5C, U6C input jointly
U6D carry out mutually with；Input signal OUT16, OUT17 input U7A carry out mutually and, the output of U7A, U6D input jointly U7D carry out phase
No. 45 pins of microprocessor 1 are finally-transmitted to output signal JC, output signal JC, so that microprocessor 1 gets synthesis
Detection signal.
As shown in figure 9, power module 4 is realized using the power supply chip of model L7805MCDT-TR, being used for will be external defeated
The 24V direct current entered is exported respectively after being converted to 5V DC voltage to microprocessor 1, infrared pulse transmitting unit 2, infrared pulse
Receiving unit 3.Referring to Fig. 9, the input terminal of power supply chip L7805MCDT-TR is serially connected with insurance SMD2016P100TF/33, and simultaneously
It is associated with filter capacitor C5/C6 and diode D1；The output end of power supply chip L7805MCDT-TR is serially connected with inductance FB1, inductance
The proximal end of FB1 is parallel with C1/C2/C3/C8/C9/C10 and diode D11, and the distal end of inductance FB1 is parallel with capacitor C11/
C12/C13/C14/C4。
It is verified by actual measurement, the automatic vending machine shipment detection device minimum detectable range of the present embodiment is measured to be fallen from high 2 meters,
Volume is 1cm3Object have that precision is high relative to the grating device used in traditional handicraft, it is low in cost, structure is simple,
The advantages that being easily achieved, convenient for batch production.
In addition, the present embodiment provides a kind of automatic vending machine, the automatic vending machine ontology including having multiple goods-out paths,
Host computer and multiple automatic vending machine shipment detection devices above-mentioned, host computer and automatic selling are installed in automatic vending machine ontology
The microprocessor 1 of cargo aircraft shipment detection device is connected.The automatic vending machine of the present embodiment equally also can be realized automatic vending machine
Shipment detection, can accurately detect kinds of goods most in actual life at automatic vending machine shipment end, scan frequency is reachable
Millisecond has the advantages that detection type is extensive, detection speed is fast, accurately height, structure are simple, easy to implement for detection.
The above is only the preferred embodiment of the utility model, and the protection scope of the utility model is not limited merely to
Above-described embodiment, technical solution belonging to the idea of the present invention belong to the protection scope of the utility model.It should refer to
Out, for those skilled in the art, it is without departing from the principle of the utility model it is several improvement and
Retouching, these improvements and modifications also should be regarded as the protection scope of the utility model.
Claims (10)
1. a kind of automatic vending machine shipment detection device, it is characterised in that: including microprocessor (1), infrared pulse transmitting unit
(2), infrared pulse receiving unit (3) and power module (4), the microprocessor (1) respectively with infrared pulse transmitting unit
(2), infrared pulse receiving unit (3) is connected, the power supply output end of the power module (4) respectively with microprocessor (1), infrared
Pulse emitting units (2), infrared pulse receiving unit (3) are connected, and the infrared pulse transmitting unit (2), infrared pulse receive
Unit (3) it is positioned opposite in automatic vending machine goods-out path on.
2. automatic vending machine shipment detection device according to claim 1, it is characterised in that: the infrared pulse transmitting is single
First (2) include logic encoder (21) and a plurality of infrared pulse transmitting branch (22), and the output end of the microprocessor (1) passes through
Logic encoder (21) is connected with each infrared pulse transmitting branch (22).
3. automatic vending machine shipment detection device according to claim 2, it is characterised in that: the infrared pulse transmitting branch
Road (22) includes the first resistor being sequentially connected, switch chip, infrared pulse ballistic transistor.
4. automatic vending machine shipment detection device according to claim 3, it is characterised in that: the switch chip is crystal
Pipe, the base stage of the transistor is connected by first resistor with the output end all the way of logic encoder (21), emitter passes through the
Two resistance are connected with base stage, and collector passes sequentially through 3rd resistor, infrared pulse ballistic transistor ground connection as output end.
5. automatic vending machine shipment detection device according to claim 2, it is characterised in that: a plurality of infrared pulse hair
Penetrate the side that branch (22) is arranged in automatic vending machine goods-out path along the length direction of automatic vending machine goods-out path respectively.
6. automatic vending machine shipment detection device according to claim 2, it is characterised in that: the infrared pulse receives single
First (3) include and the one-to-one infrared pulse receiving branch (31) of the infrared pulse transmitting branch (22), the infrared arteries and veins
Receiving branch (31) is rushed to be connected with the input terminal of microprocessor (1) respectively.
7. automatic vending machine shipment detection device according to claim 6, it is characterised in that: the infrared pulse receives branch
Road (31) includes infrared pulse receiving crystal pipe, the 4th resistance and the 5th resistance, the output of the infrared pulse receiving crystal pipe
End is connected with the input terminal of microprocessor (1) and is connected by the 4th resistance with the output end of power module (4), the infrared arteries and veins
The power input for rushing receiving crystal pipe is connected by the 5th resistance with the output end of power module (4), and the infrared pulse connects
Receiving parallel arrangement between output and ground of transistor has at least one filter capacitor.
8. automatic vending machine shipment detection device according to claim 6, it is characterised in that: the infrared pulse receives single
First (3) further include the pulse combination circuit (32) of multiple input single output structure, the input terminal of the pulse combination circuit (32) and
The output end of each infrared pulse receiving branch (31) is connected, output end is connected with microprocessor (1).
9. automatic vending machine shipment detection device according to claim 8, it is characterised in that: the pulse combination circuit
It (32) include multistage with gate logic device, and the output of two of upper level and gate logic device is as next stage and gate logic device
The input all the way of part is finally connected by most final stage with the output end of gate logic device and microprocessor (1).
10. a kind of automatic vending machine, the automatic vending machine ontology including having multiple goods-out paths, it is characterised in that: it is described from
The detection dress of automatic vending machine shipment described in any one of host computer and claim 1~9 is installed in dynamic vending machine ontology
It sets, the host computer is connected with the microprocessor (1) of automatic vending machine shipment detection device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821745927.8U CN208902896U (en) | 2018-10-26 | 2018-10-26 | A kind of automatic vending machine shipment detection device and automatic vending machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821745927.8U CN208902896U (en) | 2018-10-26 | 2018-10-26 | A kind of automatic vending machine shipment detection device and automatic vending machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208902896U true CN208902896U (en) | 2019-05-24 |
Family
ID=66576939
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821745927.8U Active CN208902896U (en) | 2018-10-26 | 2018-10-26 | A kind of automatic vending machine shipment detection device and automatic vending machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208902896U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110459001A (en) * | 2019-07-31 | 2019-11-15 | 浪潮金融信息技术有限公司 | A kind of echelette inspection pallet piling up method suitable for Self-help vending machine system |
| CN110992585A (en) * | 2019-12-02 | 2020-04-10 | 合肥美的智能科技有限公司 | Container falling detection method and system and container |
| CN110992590A (en) * | 2019-12-27 | 2020-04-10 | 合肥美的智能科技有限公司 | Object falling detection device and method and unmanned retail cabinet |
-
2018
- 2018-10-26 CN CN201821745927.8U patent/CN208902896U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110459001A (en) * | 2019-07-31 | 2019-11-15 | 浪潮金融信息技术有限公司 | A kind of echelette inspection pallet piling up method suitable for Self-help vending machine system |
| CN110992585A (en) * | 2019-12-02 | 2020-04-10 | 合肥美的智能科技有限公司 | Container falling detection method and system and container |
| CN110992590A (en) * | 2019-12-27 | 2020-04-10 | 合肥美的智能科技有限公司 | Object falling detection device and method and unmanned retail cabinet |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN208902896U (en) | A kind of automatic vending machine shipment detection device and automatic vending machine | |
| CN1241029C (en) | Test system for smart card and identification devices and like | |
| CN206818859U (en) | A kind of high-voltage electric energy meter error checking arrangement | |
| CN203164345U (en) | Multi-core cable detector | |
| CN102135545A (en) | System for measuring rotating speed of fan | |
| CN108072830A (en) | The floating inertial platform veneer automatic test device of one kind three | |
| CN103971471B (en) | Service plate automatic price method and its system based on colour recognition | |
| CN109946551A (en) | It is a kind of for testing laser source, the device of detector and its test method | |
| CN208013366U (en) | A kind of RF IC automatic testing equipment | |
| CN109949726A (en) | A kind of LED display mould group automatic white balance debugging system and adjustment method | |
| CN203178431U (en) | Full-automatic testing system for circuit boards | |
| CN206804777U (en) | Short circuit detection means | |
| CN206991291U (en) | A kind of automatic test platform for the type III computer interlocking of iron section | |
| CN209327864U (en) | Elevator control cabinet detection device and elevator control cabinet checking system | |
| CN208902840U (en) | A kind of programmable control circuit for automatically switching precision resistance | |
| CN207832960U (en) | A kind of circuit board testing system | |
| CN203149322U (en) | Extendable measurement channel switching circuit | |
| CN201060241Y (en) | Hall assembly testing apparatus | |
| CN211123230U (en) | Portable automatic debugging system for calibrator | |
| CN105445652B (en) | A kind of offline contrast test device and method of circuit board based on lissajouf figure | |
| CN86205229U (en) | Portable digital circuit meter | |
| CN208937620U (en) | Spring needle test connector suitable for semiconductor crystal wafer manufacture | |
| CN106768927A (en) | One kind is used for case back plate connector endurance testing device and method of testing | |
| CN109584534A (en) | A kind of RS485 with impulse sampling function and high speed infrared communicator | |
| CN1022450C (en) | line fault detector |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |