CN109285489A - Show piece intelligent menu display systems - Google Patents
Show piece intelligent menu display systems Download PDFInfo
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- CN109285489A CN109285489A CN201811385591.3A CN201811385591A CN109285489A CN 109285489 A CN109285489 A CN 109285489A CN 201811385591 A CN201811385591 A CN 201811385591A CN 109285489 A CN109285489 A CN 109285489A
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- capacitor
- triode
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- module
- resistance
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F27/00—Combined visual and audible advertising or displaying, e.g. for public address
Abstract
The invention discloses a kind of show piece intelligent menu display systems, including menu displaying platform, wireless communication module and multimedia information platform, the menu displaying platform is connect by the wireless communication module with the multimedia information platform, the menu displaying platform includes menu placement table, camera, picture recognition module, microcontroller and power module, and the multimedia information platform includes display module and memory module；Power module includes the first DC power supply, the second DC power supply, first resistor, second resistance, operational amplifier, first capacitor, the 4th capacitor, the first triode, the second triode, the first inductance, the second capacitor, 3rd resistor, the 4th resistance, third capacitor and voltage output end.Implement show piece intelligent menu display systems of the invention, have the advantages that circuit structure is relatively simple, cost is relatively low, maintain easily, the safety and reliability of circuit it is higher.
Description
Technical field
The present invention relates to show pieces to show field, in particular to a kind of show piece intelligent menu display systems.
Background technique
Accreditation Waiting Area generally would generally be set on exhibition room doorway, a Display Rack would generally be furnished in Accreditation Waiting Area, is put above
Set show piece.It is provided with identification code in the every page for the menu placed on the menu displaying platform of existing show piece, is imaged
Head will acquire the image for the current page that customer is seen, and be known the identification code for including in current page by image recognition chip
It does not come out, thus, multimedia file identification corresponding with the identification code of the current page can be sent to by menu displaying platform
Multimedia information platform, so that the displaying device in multimedia information platform obtains and shows corresponding multimedia file.In this way,
When customer is when browsing each menu page, it can be convenient details that are quick and reliably knowing show piece.However, traditional
The component that the power pack of show piece menu displaying system uses is more, and circuit structure is complicated, and hardware cost is higher, it has not been convenient to
Maintenance.In addition, since the power pack of traditional show piece menu displaying system lacks corresponding circuit protection function, such as: it lacks
Signal interference function is prevented less, causes the safety and reliability of circuit poor.
Summary of the invention
The technical problem to be solved in the present invention is that in view of the above drawbacks of the prior art, provide a kind of circuit structure compared with
For simple, cost is relatively low, maintains easily, the higher show piece intelligent menu display systems of the safety and reliability of circuit.
The technical solution adopted by the present invention to solve the technical problems is: constructing a kind of show piece intelligent menu displaying system
System, including menu displaying platform, wireless communication module and multimedia information platform, the menu displaying platform pass through described wireless
Communication module is connect with the multimedia information platform, and the menu displaying platform includes menu placement table, camera, image knowledge
Other module, microcontroller and power module, the multimedia information platform include display module and memory module, and the menu is put
Platform is set for showing menu, identification code is equipped in the every page of the menu, the camera and the menu placement table connect
It connects, the image of current page for acquiring the menu, described image identification module is connect, for identification with the camera
Identification code in the image of the current page, the microcontroller connect with the camera and picture recognition module respectively,
For obtaining the corresponding relationship of pre-set each identification code and each multimedia file identification, institute is determined according to the corresponding relationship
The corresponding multimedia file identification of identification code is stated, and the multimedia file identification is sent to by the wireless communication module
The display module, the display module are obtained from the memory module and are shown corresponding with the multimedia file identification
Multimedia file, the multimedia file are the message file about show piece, and the power module and the microcontroller connect
It connects, for powering；
The power module includes the first DC power supply, the second DC power supply, first resistor, second resistance, operation amplifier
Device, first capacitor, the 4th capacitor, the first triode, the second triode, the first inductance, the second capacitor, 3rd resistor, the 4th electricity
Resistance, third capacitor and voltage output end, first DC power supply by the first resistor respectively with the operational amplifier
Non-inverting input terminal connected with one end of second resistance, the other end of second resistance ground connection, the operational amplifier it is defeated
Outlet is connect with one end of one end of the first capacitor and the 4th capacitor respectively, the other end of the 4th capacitor and described the
The base stage of one triode connects, the emitter ground connection of first triode, the collector of first triode and described the
The base stage of two triodes connects, and the emitter of second triode is connected by first inductance and second DC power supply
Connect, the collector of second triode respectively with the anode of second capacitor, one end of 3rd resistor, third capacitor one
End is connected with voltage output end, and the cathode of second capacitor is grounded, the other end of the 3rd resistor respectively with the operation
One end of the inverting input terminal of amplifier, the other end of first capacitor and the 4th resistance connects, the other end of the 4th resistance
It is grounded with the other end of third capacitor, the capacitance of the 4th capacitor is 430pF.
In show piece intelligent menu display systems of the present invention, the power module further includes first diode,
The anode of the first diode is connect with the other end of the first capacitor, the cathode of the first diode and the third
The other end of resistance connects, the model E-562 of the first diode.
In show piece intelligent menu display systems of the present invention, the power module further includes the 5th capacitor, institute
The one end for stating the 5th capacitor is connect with the collector of first triode, the other end and the described 2nd 3 of the 5th capacitor
The base stage of pole pipe connects, and the capacitance of the 5th capacitor is 530pF.
In show piece intelligent menu display systems of the present invention, the power module further includes the 5th resistance, institute
The one end for stating the 5th resistance is connect with the emitter of first triode, the other end of the 5th resistance ground connection, and described the
The resistance value of five resistance is 45k Ω.
In show piece intelligent menu display systems of the present invention, first triode is NPN type triode.
In show piece intelligent menu display systems of the present invention, second triode is PNP type triode.
Implement show piece intelligent menu display systems of the invention, has the advantages that due to being equipped with menu displaying
Platform, wireless communication module and multimedia information platform, menu displaying platform include menu placement table, camera, image recognition
Module, microcontroller and power module, the power module make compared with the power pack of traditional show piece menu displaying system
Component is less, due to saving some components, can reduce hardware cost in this way, in addition, the 4th capacitor is for preventing
The only interference between operational amplifier and the first triode, therefore circuit structure is relatively simple, cost is relatively low, maintains easily, electricity
The safety and reliability on road is higher.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is the structural schematic diagram in show piece intelligent menu display systems one embodiment of the present invention；
Fig. 2 is the circuit diagram of power module in the embodiment.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
In show piece intelligent menu display systems embodiment of the present invention, the structure of the show piece intelligent menu display systems
Schematic diagram is as shown in Figure 1.In Fig. 1, which includes menu displaying platform 1, wireless communication module 2
With multimedia information platform 3, module 2 is connect menu displaying platform 1 with multimedia information platform 3 by wireless communication, menu exhibition
Show that platform 1 includes menu placement table 12, camera 13, picture recognition module 14, microcontroller 15 and power module 16, multimedia
Information platform 2 includes display module 21 and memory module 22, and menu placement table 12 is for showing menu, in the every page of menu
Equipped with identification code, camera 13 connect with menu placement table 12, the image of current page for acquiring menu, image recognition mould
Block 14 connect with camera 13, the identification code in the image of current page for identification, which is two dimensional code, microcontroller
15 connect, for obtaining pre-set each identification code and each multimedia file respectively with camera 13 and picture recognition module 14
The corresponding relationship of mark determines the corresponding multimedia file identification of identification code according to corresponding relationship, and by multimedia file identification
Module 2 is sent to display module 21 by wireless communication, and display module 21 is obtained from memory module 22 and shown and multimedia
The corresponding multimedia file of file identification, multimedia file are the message file about show piece, power module 16 and microcontroller
Device 15 connects, for powering.
When specifically used, when the customer of Accreditation Waiting Area watches certain current page, not only have on the page positioned at the page
The picture of each vegetable on face also has the corresponding identification code of the current page.Camera 13 can be with certain short period
The image of interval automatic shooting acquisition current page, can also acquire the image of current page according to the triggering of staff.
In turn, picture recognition module 14 can identify the identification code for including in the image of the current page.The picture recognition module 14
Specific recognition principle is similar to the such as principles such as feature extraction, image segmentation in the prior art, and details are not described herein again.
Microcontroller 15 is above-mentioned obtaining after receiving the identification code of current page of the transmission of picture recognition module 14
On the basis of corresponding relationship, multimedia file mark corresponding to the identification code of current page can be determined according to the corresponding relationship
Know, and then module 2 is sent to display module 21 by wireless communication by the multimedia file identification.Display module 21 is receiving
After the multimedia file identification that microcontroller 15 is sent, corresponding multimedia text is obtained from memory module 22 according to the mark
Part is simultaneously shown.Wherein, 21 display screen of display module and speech player.The multimedia file stored in memory module 22
It can be the diversified forms such as audio, video, text.
The corresponding multimedia file of each multimedia file identification, is some page of corresponding menu, and can on the page
It can include multiple vegetables, therefore, the multimedia messages of multiple vegetables be contained in the multimedia file.At this point, showing device
22 obtain from memory device 21 is to contain multiple vegetables, multimedia file corresponding with current page, shows device
22 can successively show the multimedia messages of each vegetable, can also be shown according to certain predetermined sequence.
In the present embodiment, it is provided with identification code in the every page of the menu shown on menu placement table 12, when customer sees
When seeing certain one page, camera 13 will acquire the image of current page, and will be wrapped in current page by picture recognition module 14
The identification code contained identifies, thus, menu displaying platform 1 can be by multimedia text corresponding with the identification code of the current page
Module 2 is sent to multimedia information platform 3 to part mark by wireless communication, so that display module 21 is obtained and shown corresponding more
Media file.By being stored in advance the associated detailed information for the show piece being arranged in menu every page for multimedia file, lead to
The process for carrying out that identification code identifies in above-mentioned current page image is crossed, and passes through the corresponding multimedia file of codes match
Process can make customer when browsing every page menu, efficiently and reliably know the detailed of each show piece on every page menu
Information can obtain good user experience.
Fig. 2 is the circuit diagram of power module in the present embodiment, and in Fig. 2, which includes the first direct current
Source VCC, the second DC power supply VDD, first resistor R1, second resistance R2, operational amplifier A1, first capacitor C1, the 4th capacitor
C4, the first triode Q1, the second triode Q2, the first inductance L1, the second capacitor C2,3rd resistor R3, the 4th resistance R4, third
Capacitor C3 and voltage output end Vo, wherein the first DC power supply VCC is same with operational amplifier A1 respectively by first resistor R1
Phase input terminal is connected with one end of second resistance R2, the other end ground connection of second resistance R2, the output end point of operational amplifier A1
It is not connect with one end of one end of first capacitor C1 and the 4th capacitor C4, the other end of the 4th capacitor C4 and the first triode Q1's
The base stage of base stage connection, the emitter ground connection of the first triode Q1, the collector of the first triode Q1 and the second triode Q2 connect
It connects, the emitter of the second triode Q2 is connect by the first inductance L1 with the second DC power supply VDD, the current collection of the second triode Q2
Pole is connect with the anode of the second capacitor C2, one end of 3rd resistor R3, one end of third capacitor C3 and voltage output end Vo respectively,
The cathode of second capacitor C2 is grounded, the other end of 3rd resistor R3 respectively with the inverting input terminal of operational amplifier A1, the first electricity
Hold one end connection of the other end and the 4th resistance R4 of C1, the other end of the 4th resistance R4 and the other end of third capacitor C3 connect
Ground.
The power module 16 compared with the power pack of traditional show piece menu displaying system, the component that uses compared with
Few, circuit structure is relatively simple, maintains easily, and due to saving some components, can reduce hardware cost in this way.In addition,
4th capacitor C4 is coupled capacitor, for preventing the interference between operational amplifier A1 and the first triode Q1, therefore circuit
Safety and reliability is higher.It is noted that the capacitance of the 4th capacitor C4 is 430pF in the present embodiment, certainly,
In practical application, the capacitance of the 4th capacitor C4 can adjust accordingly as the case may be, that is, the 4th capacitor C4
Capacitance can be increased accordingly or be reduced as the case may be.
When as soon as the voltage of the first DC power supply VCC is fixed value, by first resistor R1 and second resistance R2
Voltage VA at the non-inverting input terminal of road operational amplifier A1, voltage when just powering at the inverting input terminal of operational amplifier A1
VB is equal to 0；Operational amplifier A1 exports high level, the first triode Q1 conducting, and output voltage is charged by the second capacitor C2,
Voltage output end Vo obtains certain voltage, the partial pressure effect of 3rd resistor R23 and the 4th resistance R4, so that VB is stepped up to
It exporting low level the first triode Q1 equal to VA, operational amplifier A1 and closes, VB voltage slowly reduces, when being less than VA, operation
Amplifier A1 exports high level, the first triode Q1 conducting.So in circulation turn on process, lead to VB's and voltage output end Vo
Voltage is all sawtooth wave, by keeping the voltage of VB and voltage output end Vo steady to operational amplifier A1 increase first capacitor C1,
The voltage of VB is no better than the voltage of VA, and operational amplifier A1 at this time exports a stable voltage 0.6V, makes the first triode
Q1 conducting.To which voltage output end Vo exports a fixed value.Even if the second DC power supply VDD how to increase again (if the two or three
Pole pipe Q2 can be sustained), voltage output end Vo is the constant voltage values less than the first DC power supply VCC forever.
In the present embodiment, the first triode Q1 is NPN type triode, and the second triode Q2 is PNP type triode.Certainly,
In practical applications, the first triode Q1 can use PNP type triode, and the second triode Q2 can also use three pole of NPN type
Pipe, but at this moment the structure of circuit also will accordingly change.
In the present embodiment, which further includes first diode D1, the anode of first diode D1 and the first electricity
Hold the other end connection of C1, the cathode of first diode D1 is connect with the other end of 3rd resistor R3.First diode D1 is limited
Diode is flowed, for carrying out current-limiting protection, to further enhance the safety and reliability of circuit.It is noted that this reality
It applies in example, the model E-562 of first diode D1, certainly, in practical applications, first diode D1 can also use other
Model has the diode of similar functions.
In the present embodiment, which further includes the 5th capacitor C5, one end of the 5th capacitor C5 and the first triode
The collector of Q1 connects, and the other end of the 5th capacitor C5 is connect with the base stage of the second triode Q2.5th capacitor C5 is coupling electricity
Hold, for preventing the interference between the first triode Q1 and the second triode Q2, with further enhance circuit safety and
Reliability.It is noted that the capacitance of the 5th capacitor C5 is 530pF in the present embodiment, certainly, in practical applications, the
The capacitance of five capacitor C5 can adjust accordingly as the case may be, that is, the capacitance of the 5th capacitor C5 can basis
Concrete condition is increased accordingly or is reduced.
In the present embodiment, which further includes the 5th resistance R5, one end of the 5th resistance R5 and the first triode
The emitter of Q1 connects, the other end ground connection of the 5th resistance R5.5th resistance R5 is current-limiting resistance, for the first triode Q1
Emitter current carry out current-limiting protection, to further enhance current limitation effect.It is noted that in the present embodiment, the 5th electricity
The resistance value for hindering R5 is 45k Ω, and certainly, in practical applications, the resistance value of the 5th resistance R5 can carry out accordingly as the case may be
Adjustment, that is, the resistance value of the 5th resistance R5 can be increased accordingly or be reduced as the case may be.
In short, in the present embodiment, the power supply split-phase of the power module 16 and traditional show piece intelligent menu display systems
Than the component used is less, and circuit structure is relatively simple, maintains easily, in this way can be with due to saving some components
Reduce hardware cost.In addition, being equipped with coupled capacitor in the power module 16, therefore the safety and reliability of circuit is higher.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Within mind and principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (6)
1. a kind of show piece intelligent menu display systems, which is characterized in that including menu displaying platform, wireless communication module and more
Media information platform, the menu displaying platform are connect by the wireless communication module with the multimedia information platform, institute
Stating menu displaying platform includes menu placement table, camera, picture recognition module, microcontroller and power module, more matchmakers
Body information platform includes display module and memory module, and the menu placement table is for showing menu, the every page of the menu
On be equipped with identification code, the camera connect with the menu placement table, the figure of current page for acquiring the menu
Picture, described image identification module connect with the camera, the identification code in the image of the current page for identification, described
Microcontroller is connect, for obtaining pre-set each identification code and Ge Duo matchmaker respectively with the camera and picture recognition module
The corresponding relationship of body file identification determines the corresponding multimedia file identification of the identification code according to the corresponding relationship, and will
The multimedia file identification is sent to the display module by the wireless communication module, and the display module is deposited from described
Obtain and show that multimedia file corresponding with the multimedia file identification, the multimedia file are about exhibition in storage module
Look at the message files of product, the power module is connect, for powering with the microcontroller；
The power module includes the first DC power supply, the second DC power supply, first resistor, second resistance, operational amplifier, the
One capacitor, the 4th capacitor, the first triode, the second triode, the first inductance, the second capacitor, 3rd resistor, the 4th resistance,
Three capacitors and voltage output end, first DC power supply by the first resistor respectively with the same phase of the operational amplifier
Input terminal is connected with one end of second resistance, the other end ground connection of the second resistance, the output end point of the operational amplifier
It is not connect with one end of one end of the first capacitor and the 4th capacitor, the other end of the 4th capacitor and the one or three pole
The base stage of pipe connects, the emitter ground connection of first triode, the collector of first triode and the two or three pole
The base stage of pipe connects, and the emitter of second triode is connect by first inductance with second DC power supply, institute
State the collector of the second triode respectively with the anode of second capacitor, one end of 3rd resistor, third capacitor one end and
Voltage output end connection, second capacitor cathode ground connection, the other end of the 3rd resistor respectively with the operation amplifier
One end of the inverting input terminal of device, the other end of first capacitor and the 4th resistance connects, the other end of the 4th resistance and the
The other end of three capacitors is grounded, and the capacitance of the 4th capacitor is 430pF.
2. show piece intelligent menu display systems according to claim 1, which is characterized in that the power module further includes
First diode, the anode of the first diode are connect with the other end of the first capacitor, the yin of the first diode
Pole is connect with the other end of the 3rd resistor, the model E-562 of the first diode.
3. show piece intelligent menu display systems according to claim 2, which is characterized in that the power module further includes
One end of 5th capacitor, the 5th capacitor is connect with the collector of first triode, the other end of the 5th capacitor
It is connect with the base stage of second triode, the capacitance of the 5th capacitor is 530pF.
4. show piece intelligent menu display systems according to claim 3, which is characterized in that the power module further includes
One end of 5th resistance, the 5th resistance is connect with the emitter of first triode, the other end of the 5th resistance
Ground connection, the resistance value of the 5th resistance are 45k Ω.
5. show piece intelligent menu display systems according to any one of claims 1 to 4, which is characterized in that described
One triode is NPN type triode.
6. show piece intelligent menu display systems according to any one of claims 1 to 4, which is characterized in that described
Two triodes are PNP type triode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811385591.3A CN109285489A (en) | 2018-11-20 | 2018-11-20 | Show piece intelligent menu display systems |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811385591.3A CN109285489A (en) | 2018-11-20 | 2018-11-20 | Show piece intelligent menu display systems |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109285489A true CN109285489A (en) | 2019-01-29 |
Family
ID=65175765
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811385591.3A Pending CN109285489A (en) | 2018-11-20 | 2018-11-20 | Show piece intelligent menu display systems |
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| CN207354224U (en) * | 2017-10-20 | 2018-05-11 | 贵州裕华隆电子科技有限公司 | Power amplification circuit for speaker of voice box |
| CN108766321A (en) * | 2018-07-16 | 2018-11-06 | 江南大学 | Musical electric sub-light cubic system is united |
| CN208063227U (en) * | 2018-04-18 | 2018-11-06 | 南京渔管家物联网科技有限公司 | Support the agriculture big data gateway of multi-protocols |
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|---|---|---|---|---|
| CN201699585U (en) * | 2010-05-21 | 2011-01-05 | 深圳市易能电气技术有限公司 | Novel intelligent voltage stabilizing circuit |
| WO2014141517A1 (en) * | 2013-03-15 | 2014-09-18 | 沖電気工業株式会社 | Information delivery system, information delivery method, and computer program |
| CN104700330A (en) * | 2015-03-20 | 2015-06-10 | 张慧燕 | Intelligent menu display system |
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Application publication date: 20190129 |