CN104504422A - Visible light communication based intelligent electronic shelf label system and application method thereof - Google Patents
Visible light communication based intelligent electronic shelf label system and application method thereof Download PDFInfo
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Abstract
The invention relates to a visible light communication based intelligent electronic shelf label system and an application method thereof. The system comprises a server, a transmitter and a receiver; the server is used for acquiring label information with label ID (identity) and sending the label information according to the label ID; the transmitter is used for receiving the label information with the label ID sent by the server after establishing communication with the server, converting the label information into a corresponding visible light signal and sending the visible light signal; the receiver is used for receiving the visible light signal sent by the transmitter, converting the visible light signal, generating to-be-displayed label information according to the label ID and displaying the to-be-displayed label information. The system has high anti-jamming capability, so that stability and reliability in information transmission are guaranteed.
Description
Technical field
The present invention relates to electronic bin tag system, propose a kind of smart electronics bin tag system based on visible light communication and a kind of this method based on the smart electronics bin tag system of visible light communication of application.
Background technology
Supermarket, current most of market (hereinafter referred to as " business surpass ") still adopts the shelf label of papery, for showing the information relevant to commodity, and to coordinate with back-end server based on bar codes technique and carries out commodity information management.The development of the scale chain operation surpassed along with business, the activities such as sales promotion discounting are day by day frequent, merchandise news also more and more comprehensive and abundant and flexible and changeable, and paper goods shelf label and management system thereof highlight its drawback:
1) making of paper labels needs to fulfil ahead of schedule, and need spend more printing consumables.For price change commodity (as fresh meat dish etc.) comparatively frequently, need printing and the handling cost of at substantial;
2) paper labels is thrown in and follow-up maintenance replacing, needs to drop into a large amount of manpower, and cannot realize automation mechanized operation.Especially, large supermarket changes for the information of commodity, price adjustment, the operation such as shelf resettlement are comparatively frequent, changes and safeguards that paper labels has become an extremely loaded down with trivial details job.In addition, when commodity amount is larger, also easily there is mistake in artificial placement label, thus cause sales volume decline (as will high price label misplace in low cost goods place) or Transaction Disputes (as will at a low price label misplace in expensive goods place), increase the additional maintenance cost in supermarket;
3) specification of paper labels depends on tag template, and not only displaying contents is limited, and is subject to the restriction of forming label cycle and cost, and the flexible content not easily realized for different commodity customizes with promotion.
Commodity information management system based on paper goods shelf label has become the important restriction factor that large-scale business surpasses administration, therefore there is employing ESL (Electronic ShelfLabel in recent years, electronic shelf label) management system, and existing to practice.Conventional ESL system can at background management system by wired or wireless communication mode, merchandise news and managing control information are sent to ESL, ESL by process the data that receive the most at last merchandise news be presented on electronic tag, to realize management maintenance to ESL and commodity information management.
Current ESL system mainly adopts cable communicating technology, or bluetooth, Zigbee, the short-distance and medium-distance wireless communication technology such as infrared carry out information transmission.Adopt the ESL system of wire communication transmission, need again to customize shelf and re-start communication line transformation to business is super, affect greatly the normal operation that business surpasses, and improvement cost is not low, application is subject to larger restriction.Adopt the ESL system of traditional wireless communication technology, decrease implementation costs such as the requirements of shelf Custom Design, and add ESL movability, practice and obtain good improvement.But because traditional wireless communication technology all exists comparatively serious air interference and radiation problem, security, reliability, less stable.ESL system based on traditional wireless communication technology dispose implement still comparatively complicated, signal reliability shortcoming, cost are higher, be still restricted when causing it to be implemented by large-scale promotion.
Summary of the invention
For the deficiencies in the prior art, the object of the present invention is to provide a kind of smart electronics bin tag system based on visible light communication, it has good antijamming capability, thus the stability of guarantee information transmission and reliability.
For achieving the above object, the present invention adopts following technical scheme:
Based on a smart electronics bin tag system for visible light communication, comprising:
Server, it has the label information of label ID for obtaining, and sends this label information according to this label ID;
Transmitter, it is for after server is set up and communicated, the label information that reception server sends, and converts this label information to corresponding visible light signal, sends described visible light signal according to described label ID;
Receiver, its visible light signal sent for receiving transmitter, changes visible light signal, generates the to be shown label information corresponding with described label ID, and shown by this label information to be shown.
Preferably, described transmitter comprises LED and is integrated in the emitting module in LED, and this emitting module comprises:
First signal processing module, its label information with label ID sent for reception server, and obtain corresponding digital electric signal after label information is processed, the digital electric signal after transmission processing;
Modular converter, it is for receiving described digital electric signal, digital-to-analog conversion is carried out to this digital electric signal and generates analog electrical signal, and this analog electrical signal is superimposed upon on the drive current of LED, the luminescence of driving LED lamp converts described analog electrical signal to visible light signal, and sends this visible light signal.
Preferably, described emitting module also comprise intercom mutually with the first processing module to connection module; This docks with server for adopting Ethernet interface and plc communication link connection module, and formulates host-host protocol; The label information with label ID that described first signal processing module sends according to this host-host protocol reception server.
Preferably, described receiver is installed on shelf, and this receiver comprises:
Receiving and processing module, its visible light signal launched for receiving transmitter, converting visible light signal to analog electrical signal, and carry out digital-to-analog conversion generation digital electric signal after this analog electrical signal is amplified, then send this digital electric signal
Secondary signal processing module, it is for receiving by receiving the digital electric signal sent with processing module, to process and obtain corresponding label information to be shown according to described label ID to this digital electric signal;
Display module, for showing described label information to be shown.
Preferably, described transmitter and receiver include the power module for powering to it.
Preferably, the form of described server transmission label information comprises: overall set of tags broadcast, set of tags broadcast and label single broadcast.
The present invention also provides a kind of application based on the method for the smart electronics bin tag system of visible light communication, comprises the following steps:
Steps A, is obtained the label information with label ID, and sends this label information by server;
Step B, sets up after communicating by transmitter and server, the label information with label ID sent by this transmitter receipt server, and converts this label information to corresponding visible light signal, sends described visible light signal;
Step C, is received the visible light signal of transmitter transmission, changes, generate the to be shown label information corresponding with its label ID, and shown by this label information to be shown visible light signal process by receiver.
Preferably, step B comprises the following steps:
Step B1, the label information with label ID sent by the first signal processing module reception server, and obtain corresponding digital electric signal after label information is processed, the digital electric signal after transmission processing;
Step B2, by modular converter to the described digital electric signal of reception, digital-to-analog conversion is carried out to this digital electric signal and generates analog electrical signal, this analog electrical signal is superimposed upon on the drive current of LED, convert described analog electrical signal to visible light signal by LED luminescence, and send this visible light signal according to described label ID.
Preferably, step C comprises the following steps:
Step C1, receives with processing module the visible light signal that transmitter launches by receiving, and converts visible light signal to analog electrical signal, carries out digital-to-analog conversion generation digital electric signal, then send this digital electric signal to this analog electrical signal after amplifying;
Step C2, receive by receiving the digital electric signal sent with processing module by secondary signal processing module, obtains corresponding label information to be shown to this digital electric signal according to described label ID process;
Step C3, treats display tag information by display module according to described label ID and shows.
Preferably, the form sending label information in steps A comprises: overall set of tags broadcast, set of tags broadcast and label single broadcast.
Beneficial effect of the present invention:
Smart electronics bin tag system based on visible light communication of the present invention and application process thereof convert label information to visible light signal by transmitter according to label ID and transmit, then by receiver described visible light signal received and processing, obtain corresponding label information to be shown, and treat display tag information according to label ID and show.So the present invention solves interference and the radiation problem of traditional wireless communication technology by visible light communication technology effective.Further, the present invention can multiplexing existing LED illumination and power supply facilities to greatest extent; Improve the reliability of system of the present invention, stability, security, the feature of environmental protection; Also handling cost is significantly reduced while bringing the tag control function of convenient and efficient; Label information can also be made to show on the receiver of the shelf of correspondence exactly.
Accompanying drawing explanation
Fig. 1 is one of structural representation of a kind of smart electronics bin tag system based on visible light communication in embodiments of the invention;
Fig. 2 is the structural representation two of a kind of smart electronics bin tag system based on visible light communication in embodiments of the invention;
Fig. 3 is set of tags schematic diagram in embodiments of the invention;
Fig. 4 is transmitter block diagram in embodiments of the invention;
Fig. 5 is receiver block diagram in embodiments of the invention;
Fig. 6 be in embodiments of the invention a kind of application based on the process flow diagram of the method for the smart electronics bin tag system of visible light communication.
Embodiment
Below, by reference to the accompanying drawings and embodiment, the present invention is described further:
With reference to Fig. 1 and Fig. 2, a kind of smart electronics bin tag system based on visible light communication described in the present embodiment, comprising: server 1, transmitter 2 and receiver 3.Described server 1 can pass through PLC (Power Line Communications, power line communication) return link with transmitter 2 or other links communicate.Described transmitter 2 and 3 is communicated by VLC (Visible Light Communication, based on the visible light communication) communication technology.It should be noted that, the shelf in Fig. 2 and in the present embodiment refer to for the super interior entity shelf for placing commodity of business.Pallet quantity in Fig. 2 is more than one, and each shelf are provided with some electronic tags, and each label has a corresponding label ID, that is: a kind of commodity on each label ID certain shelf corresponding.LED itself should be included in transmitter in addition, is an ingredient of transmitter.
Described transmitter 2 comprises LED and is integrated in the emitting module in LED.Described transmitter 2 based on PLC technology, can be completed and server 1 communications function while passback (Backhaul) the real-time performance illumination functions carried by LED illumination supply line.Described receiver 3 is by shelf centrally connected power supply or independent powered battery.This receiver 3 does not need additionally to lay special data line network (such as netting twine) and realizes and launch 2 and communicate, it realizes communicating with transmitting 2 mainly through VLC technology, and is presented on receiver 3 by the merchandise news that the data that process receives need show.
Described server 1 for obtaining the label information with label ID, and sends this label information.The server of the present embodiment can be the server for data processing and control treatment, this server has the software run at background service platform.By PLC or other network links, communicate with transmitters all in system.Described server can upgrade label information or safeguard.Described server realizes by human-computer interaction interface obtaining the label information with label ID; And management mode flexibly can be realized according to the particular demands of different shelf, different commodity.Such as, can take to periodically update according to the characteristic renewal frequency of product, immediate updating and combination upgrade.The price of the products such as usual fresh meat dish can be different within the different time periods, therefore can adopt and periodically update; Immediate updating can be adopted for the interim commodity given a discount.Label information and label ID one_to_one corresponding, the label information received is found corresponding label ID by server, and according to label ID, label information is sent to the VLC base station covering this ID label, then in this VLC base station range, broadcast corresponding label information by this VLC base station.
As shown in Figure 3, the form that described server 1 sends label information comprises: overall set of tags broadcast, set of tags broadcast, label single broadcast and other forms of broadcasting.Described overall set of tags broadcast refers to for receiver corresponding to commodity all in market.Described set of tags broadcast refers to for receiver corresponding to the single or multiple commodity of single VLC base station, or the receiver that the single or multiple commodity of multiple VLC base station are corresponding.Described label clean culture refers to for receiver corresponding to particular commodity.Transmission form also can be other label information transfer management modes.
As shown in Figure 4, described transmitter 2 is for after server is set up and communicated, and the label information with label ID that reception server sends, and convert this label information to corresponding visible light signal, sends described visible light signal according to described label ID.The brightness of this visible ray can change along with the difference of visible light signal.Such as, this transmitter is superimposed upon in LED drive current after label information can being changed, and driving LED is luminous, and label information forms visible light signal the most at last, thus can be transmitted by the change of LED quick light and shade, during the light and shade change of LED, human eye cannot be discovered and obtains.Described transmitter 2 can be VLC transmitter, and it to be connected with server laggard Serial Communication by PLC or other network links.This transmitter is used for after receiving relevant label information, according to label ID, label information is sent in the receiver of corresponding shelf exactly by VLC transmitter, completes and corresponding label information is sent to the receiver 3 (that is: electronic tag) on all shelf in coverage.
Described emitting module comprises the first signal processing module 21 and modular converter 22.
Described first signal processing module 21, its label information with label ID sent for reception server, and obtain corresponding digital electric signal after label information is processed, the digital electric signal after transmission processing.This first signal processing module 21 has achieved and has carried out VLC descending communication signal processing procedure to downlink transfer to the data of label, exports signal after process to modular converter 22.
Described modular converter 22, its for reception described digital electric signal, digital-to-analog conversion is carried out to this digital electric signal and generates analog electrical signal, and this analog electrical signal is superimposed upon on the drive current of LED, convert described analog electrical signal to visible light signal by LED luminescence, and send this visible light signal.This modular converter 22 has achieved descending VLC signal processing, namely realizes the conversion of digital electric signal and light signal, and is sent by label information light by the light that LED sends.
Preferably, described emitting module also comprise intercom with the first processing module 21 phase to connection module 23, it docks with server for adopting Ethernet interface and plc communication link, and formulates host-host protocol; The label information that described first signal processing module 21 sends according to this host-host protocol and label ID reception server.This connection module 23 realizes data-interface to background service platform and transmitter inner control logic.Because needs dock with the super existing information management system of various business, compatible and dirigibility preferably need be ensured, adopt commodity ethernet interface to dock with server with plc communication link, and surpass operation system feature formulation host-host protocol according to business, be convenient to system product compatible extensions and management maintenance.
Preferably, described transmitter 2 also comprises the first power module 24 for powering to it.It is the first signal processing module 21 that this first power module 24 can be used for, modular converter 22 and powering to connection module 23, and this first power module 24 can connect civil power.
As shown in Figure 5, the visible light signal that described receiver 3 sends for receiving transmitter, changes visible light signal, generates label information to be shown according to described label ID, and shown by this label information to be shown.This receiver can be integrated VLC receiver, and it can receive the visible light signal that transmitter is launched, and processes visible light signal, and obtains corresponding label information display to be shown after demodulating and decoding on the receiver.This label information to be shown can be extensive stock information such as comprising cargo price, trade name, the place of production and model.Each electronic tag is a receiver, can accept visible light signal that transmitter sends and change, but only can preserve and generate this display information corresponding to ID electronic tag and show, if not electronic labeling information corresponding to this ID will abandon.
Described receiver 3 is installed on shelf, and this receiver 3 comprises reception and processing module 31, secondary signal processing module 32 and display module 33.
Described reception and processing module 31, its visible light signal launched for receiving transmitter, and visible light signal is converted to analog electrical signal, and carry out digital-to-analog conversion generation digital electric signal after this analog electrical signal is amplified, then send this digital electric signal.By photosensitive device, visible light signal is converted to analog electrical signal.
Described secondary signal processing module 32, it, for receiving by receiving the electric signal sent with processing module, processing this electric signal and obtaining corresponding label information to be shown.Secondary signal processing module 32 achieves the signal processing to VLC downlink data.
Described display module 33, for showing described label information to be shown.This display module 33 can comprise LCDs or other all can be used for the display screen that shows, this display screen can design different Show Styles according to different merchandise classification.
Preferably, described receiver 3 also comprises the second source module 34 for powering to it.This second source module 34 is for powering with processing module 31, secondary signal processing module 32 and display module 33 for receiving.
It should be noted that, the first power module and second source module all can adopt powered battery and direct current supply two kinds of modes to be combined, to adapt to different application scenarios demands.
With reference to Fig. 6, a kind of method applying the above-described smart electronics bin tag system based on visible light communication is also provided in embodiments of the invention, comprises the following steps:
Steps A, is obtained the label information of label ID, and sends this label information by server.The form sending label information in steps A comprises: overall set of tags broadcast, set of tags broadcast and label single broadcast.
Step B, sets up after communicating by transmitter and server, the label information with label ID sent by this transmitter receipt server, and converts this label information to corresponding visible light signal, sends described visible light signal.
Described step B specifically can comprise the following steps:
Step B1, the label information with label ID sent by the first signal processing module reception server, and obtain corresponding digital electric signal after label information is processed, the digital electric signal after transmission processing;
Step B2, by modular converter to the described digital electric signal of reception, digital-to-analog conversion is carried out to this digital electric signal and generates analog electrical signal, this analog electrical signal is superimposed upon on the drive current of LED, convert described electric signal to visible light signal by LED luminescence, and send this visible light signal according to described label ID.
Step C, receives the visible light signal of transmitter transmission by receiver, carry out process conversion, generate the to be shown label information corresponding with its label ID, and shown by this label information to be shown visible light signal.
Described step C specifically can comprise the following steps:
Step C1, receives with processing module the visible light signal that transmitter launches by receiving, and converts visible light signal to analog electrical signal, carries out digital-to-analog conversion generation digital electric signal, then send this digital electric signal to this analog electrical signal after amplifying; By photosensitive device, visible light signal is converted to analog electrical signal.
Step C2, being received by receiving the digital electric signal sent with processing module by secondary signal processing module, processing and obtain corresponding label information to be shown to this digital electric signal.
Step C3, treats display tag information by display module according to described label ID and shows.
In sum, the smart electronics bin tag system based on visible light communication of the present invention and application process thereof, according to the demand of described application scenarios, can have lower software and hardware complexity.Because the amount of communication data of inventory information display and maintenance is less, and it is not high to the requirement of real-time of data transmission, so transmitter and receiver all can adopt existing low-cost processes device framework, improve level of integrated system and reduce power consumption, making the power consumption of this system and holistic cost be down to bottom line.
The present invention uses intelligent label to use VLC technology to realize merchandise news and receives and change, avoid traditional paper labels maintenance mode, can significantly reduce paper labels consumption, remarkable reduction safeguard Commercial goods labels information change needed for manpower and the time, help business to surpass operator and cut operating costs in price modification activity frequently.In addition, this system significantly reduces the probability of label information or positional fault, also can revise fast wrong label information, effectively can promote customer satisfaction.
The present invention uses VLC, PLC as the carrying pipeline of information transmission, the existing LED illumination device in supermarket and supply line can be utilized to greatest extent, require very low to the infrastructure rebuilding in supermarket, the impression of client to the super original lighting environment of business can not be reduced owing to introducing new communication function, but also network layout complexity and corresponding cost can be reduced.Except a small amount of background server, data gateway etc., without the need to additionally purchasing network transmission system or the equipment of high cost.In addition, compare with the smart electronics bin tag system based on traditional short-distance wireless communication technology such as NFC, ZigBee, WiFi, system of the present invention also has competitive power (can see table 1).
The feature of table 1:VLC and traditional short-distance wireless communication technology contrasts
The present invention can provide fast and convenient price modification mechanism, business is overhauled and seeks and can adjust price attraction client in time according to the price of rival.Also can upgrade rapidly label information, to realize more marketing tool with the variation of commodity putting position.By disposing native system, traditional business can be met and surpass the flexible price and marketing demand that cannot realize because of the many disadvantages of paper labels administrative mechanism, promote the market competitiveness.
To one skilled in the art, according to technical scheme described above and design, other various corresponding change and deformation can be made, and all these change and deformation all should belong within the protection domain of the claims in the present invention.
Claims (10)
1., based on the smart electronics bin tag system of visible light communication, it is characterized in that, comprising:
Server, it has the label information of label ID for obtaining, and sends this label information according to this label ID;
Transmitter, it is for after server is set up and communicated, the label information that reception server sends, and converts this label information to corresponding visible light signal, sends described visible light signal according to described label ID;
Receiver, its visible light signal sent for receiving transmitter, changes visible light signal, generates the to be shown label information corresponding with described label ID, and shown by this label information to be shown.
2. the smart electronics bin tag system based on visible light communication according to claim 1, is characterized in that, described transmitter comprises LED and is integrated in the emitting module in LED, and this emitting module comprises:
First signal processing module, its label information with label ID sent for reception server, and obtain corresponding digital electric signal after label information is processed, the digital electric signal after transmission processing;
Modular converter, it is for receiving described digital electric signal, digital-to-analog conversion is carried out to this digital electric signal and generates analog electrical signal, and this analog electrical signal is superimposed upon on the drive current of LED, the luminescence of driving LED lamp converts described analog electrical signal to visible light signal, and sends this visible light signal.
3. the smart electronics bin tag system based on visible light communication according to claim 2, is characterized in that, described emitting module also comprise intercom mutually with the first processing module to connection module; This docks with server for adopting Ethernet interface and plc communication link connection module, and formulates host-host protocol; The label information with label ID that described first signal processing module sends according to this host-host protocol reception server.
4. the smart electronics bin tag system based on visible light communication according to claim 1, it is characterized in that, described receiver is installed on shelf, and this receiver comprises:
Receiving and processing module, its visible light signal launched for receiving transmitter, converting visible light signal to analog electrical signal, and carry out digital-to-analog conversion generation digital electric signal after this analog electrical signal is amplified, then send this digital electric signal;
Secondary signal processing module, it is for receiving by receiving the digital electric signal sent with processing module, to process and obtain corresponding label information to be shown according to described label ID to this digital electric signal;
Display module, for showing described label information to be shown.
5. the smart electronics bin tag system based on visible light communication according to any one of claim 1-4, it is characterized in that, described transmitter and receiver include the power module for powering to it.
6. the smart electronics bin tag system based on visible light communication according to any one of claim 1-4, is characterized in that, the form that described server sends label information comprises: overall set of tags broadcast, set of tags broadcast and label single broadcast.
7. application is based on the method for the smart electronics bin tag system of visible light communication, it is characterized in that, comprises the following steps:
Steps A, is obtained the label information of label ID, and sends this label information by server;
Step B, sets up after communicating by transmitter and server, the label information with label ID sent by this transmitter receipt server, and converts this label information to corresponding visible light signal, sends described visible light signal;
Step C, is received the visible light signal of transmitter transmission, carries out conversion process, generate the to be shown label information corresponding with described label ID, and shown by this label information to be shown visible light signal by receiver.
8. method according to claim 7, is characterized in that, step B comprises the following steps:
Step B1, the label information with label ID sent by the first signal processing module reception server, and obtain corresponding digital electric signal after label information is processed, the digital electric signal after transmission processing;
Step B2, by modular converter to the described digital electric signal of reception, digital-to-analog conversion is carried out to this digital electric signal and generates analog electrical signal, this analog electrical signal is superimposed upon on the drive current of LED, convert described analog electrical signal to visible light signal by LED luminescence, and send this visible light signal according to described label ID.
9. method according to claim 7, is characterized in that, step C comprises the following steps:
Step C1, receives with processing module the visible light signal that transmitter launches by receiving, and converts visible light signal to analog electrical signal, carries out digital-to-analog conversion generation digital electric signal, then send this digital electric signal to this analog electrical signal after amplifying;
Step C2, receive by receiving the digital electric signal sent with processing module by secondary signal processing module, obtains corresponding label information to be shown to this digital electric signal according to described label ID process;
Step C3, treats display tag information by display module according to described label ID and shows.
10. the method according to any one of claim 7-9, is characterized in that, the form sending label information in steps A comprises: overall set of tags broadcast, set of tags broadcast and label single broadcast.
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| CN105719166A (en) * | 2016-03-28 | 2016-06-29 | 华南理工大学 | Shopping guide method based on Zigbee communication and visible light communication and system achieving method |
| CN105898924A (en) * | 2016-05-30 | 2016-08-24 | 京东方科技集团股份有限公司 | Fresh food lamp, mobile terminal, product information determination system and determination method |
| CN105894259A (en) * | 2016-04-22 | 2016-08-24 | 华南理工大学 | Self-service ordering and payment system based on VLC-PLC converged communication |
| CN107239916A (en) * | 2017-05-02 | 2017-10-10 | 中国人民解放军信息工程大学 | A kind of storage management method and device |
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