CN112054845A - Indoor shopping guide system based on visible light communication - Google Patents
Indoor shopping guide system based on visible light communication Download PDFInfo
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- CN112054845A CN112054845A CN202010960250.5A CN202010960250A CN112054845A CN 112054845 A CN112054845 A CN 112054845A CN 202010960250 A CN202010960250 A CN 202010960250A CN 112054845 A CN112054845 A CN 112054845A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/11—Arrangements specific to free-space transmission, i.e. transmission through air or vacuum
- H04B10/114—Indoor or close-range type systems
- H04B10/116—Visible light communication
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
- G06K7/10—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation
- G06K7/10544—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation by scanning of the records by radiation in the optical part of the electromagnetic spectrum
- G06K7/10821—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation by scanning of the records by radiation in the optical part of the electromagnetic spectrum further details of bar or optical code scanning devices
- G06K7/10861—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation by scanning of the records by radiation in the optical part of the electromagnetic spectrum further details of bar or optical code scanning devices sensing of data fields affixed to objects or articles, e.g. coded labels
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- G—PHYSICS
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- G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
- G06Q30/00—Commerce
- G06Q30/06—Buying, selling or leasing transactions
- G06Q30/0601—Electronic shopping [e-shopping]
- G06Q30/0631—Item recommendations
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
- G06Q30/00—Commerce
- G06Q30/06—Buying, selling or leasing transactions
- G06Q30/0601—Electronic shopping [e-shopping]
- G06Q30/0639—Item locations
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Abstract
The invention discloses an indoor shopping guide system based on visible light communication, which comprises a server, a positioning module, a guide module and a shopping guide prediction module, wherein an LED lamp is transformed in the positioning module, so that visible light emitted by the positioning module contains a pre-coded identification code and a redundant code, a user carries a mobile receiving end to receive and recognize information of the visible light when moving indoors, thereby realizing the positioning function, a link switching algorithm is arranged in the mobile receiving end, so that the mobile receiving end starts a link switching process when moving in different areas, hysteresis margin is adjusted according to the position of the LED lamp, the link switching times and the reciprocating rate are reduced, the guide module and the shopping guide prediction module can plan a moving route according to the user demand, predict commodities interested by the times of the user appearing in one area, and push commodity information related to the commodities in the area, for guiding the user to make a purchase and to achieve a function of marketing goods, the user can directly select a destination among the associated goods.
Description
Technical Field
The invention relates to the technical field of shopping guide systems, in particular to an indoor shopping guide system based on visible light communication.
Background
At present, the internal structures of a plurality of superstores and supermarkets are various, and the provided commodities are various, so that the total amount of various kinds of information is huge, and the commodities information of the markets and supermarkets can be conveniently known by customers, and the shopping malls and supermarkets are built
The information platform provides commodity information service for customers through promotion means such as mobile phone short messages, online release and mailing of paper brochures, and accordingly the customers can be attracted to shop in the future, wherein in order to facilitate shopping of the customers, most of shopping malls and supermarkets begin to adopt the intelligent shopping guide system, most of the intelligent shopping guide systems are based on WiFi, ZigBee or Bluetooth, the intelligent shopping guide system based on WiFi, ZigBee or Bluetooth is not high in positioning efficiency except that a large amount of network erection cost needs to be invested, and is single in function, and when the customers shop, the customers can move indoors randomly without the function of guiding the customers to shop, and the various requirements of the customers cannot be met, so that the indoor shopping guide system based on visible light communication is urgently needed to solve the problems.
Disclosure of Invention
The invention provides an indoor shopping guide system based on visible light communication, which can effectively solve the problems that the existing intelligent shopping guide system provided in the background art is high in input cost, low in positioning efficiency, single in function and incapable of meeting various requirements of customers.
In order to achieve the purpose, the invention provides the following technical scheme: an indoor shopping guide system based on visible light communication comprises a server, a positioning module, a guide module and a shopping guide prediction module;
the server is internally provided with a database for storing indoor layout information and is respectively connected with the positioning module, the guiding module and the shopping guide predicting module;
the positioning module comprises a transmitting end and a mobile receiving end, the transmitting end is used for transmitting visible light containing identification codes and redundant codes, the mobile receiving end moves indoors along with a user, the mobile receiving end comprises a receiver and a multimedia player, the receiver is used for receiving visible light signals, reading the identification codes and the redundant codes in the visible light signals, and the multimedia player monitors results read by the receiver and automatically plays multimedia data corresponding to the results;
the guiding module is connected with the positioning module, reads the positioning information of the mobile receiving end, when a user selects a destination on the display screen, the guiding module calls the layout information in the server database, and automatically plans a mobile route and indoor layout information on the route on the display screen of the multimedia player;
the shopping guide prediction module is connected with the positioning module, reads positioning information of the mobile receiving terminal, monitors the occurrence frequency of the mobile receiving terminal in the positioning area, compares the occurrence frequency with a preset value, defines the position area as an interest area when the occurrence frequency or the mutation quantity exceeds the preset value, and feeds back the position information of the interest area to the server;
and the server receives the signal fed back by the shopping guide prediction module, calls the position data associated with the position, pushes the position data to the positioning module and displays the position data on the display screen of the multimedia player.
According to the technical scheme, the transmitting end comprises a plurality of LED lamps arranged indoors and VLID encoders connected with the LED lamps, and the VLID encoders are used for encoding the LED lamps.
According to the technical scheme, the mobile receiving end contains a link switching algorithm, and the algorithm specifically comprises the following steps: when the receiving end moves from the coverage area of a first LED lamp to the coverage area of an adjacent second LED lamp, if the signal intensity of the second LED lamp exceeds the signal intensity of the first LED lamp by a lag margin H, a link switching process is started in the visual overlapping area.
According to the technical scheme, the positioning module adjusts the brightness of the LED by adopting pulse width modulation and changing modulation depth.
According to the technical scheme, the receiver comprises a photoelectric receiving circuit, a filter, a level decision device and a decoder, the photoelectric receiving circuit receives visible light, the visible light is sequentially subjected to self-adaptive amplification, filter processing and level decision device processing and is sent to the decoder for decoding, the decoder identifies original codes in the visible light, an identification code table is compared, and redundant codes and identification codes are matched.
According to the technical scheme, the multimedia player is connected with the decoder through the interception communication interface, receives the information matched with the decoder, calls the database in the server and plays the related data.
According to the technical scheme, the multimedia player is further provided with a scanning window which is used for scanning the label of the article, identifying the related information of the article and displaying the scanned article information on the display screen, wherein the user selects to store the article information or delete the article information by operating the display screen.
According to the technical scheme, the Bluetooth module is arranged in the multimedia player and connected with the user mobile phone through the Bluetooth module, data displayed on the multimedia player are synchronized to the user mobile phone, the interest area data are synchronized to the user mobile phone, and the interest area data can be automatically displayed for the user to select when the multimedia player is connected next time.
Compared with the prior art, the invention has the beneficial effects that:
1. in the invention, the LED lamp is reformed, so that the emitted visible light contains a pre-coded identification code and a redundant code, when a user carries a mobile receiving end to move indoors, the user receives and identifies the visible light information through the mobile receiving end, thereby realizing the positioning function, wherein the redundant code is added to ensure that the system has certain error checking capability, thereby effectively avoiding the error code condition;
in addition, the shopping guide system also comprises a guide module and a shopping guide prediction module, the mobile route of the user can be planned according to the requirement of the user, the commodities which the user is interested in are predicted according to the number of times that the user appears in one area, commodity information related to the commodities in the area is pushed, the user is guided to carry out shopping, the function of promoting the commodities is achieved, the user can directly select the destination in the related commodities, the time is saved, and the shopping efficiency is improved.
2. In the invention, the multimedia player is also provided with the scanning window, so that the user can scan the commodities conveniently to obtain the comprehensive information of the commodities, the client can visually know the types of the purchased commodities and the prices of the purchased commodities in advance, the user can conveniently select the commodities, and the condition of returning orders is avoided.
3. According to the invention, the Bluetooth module is arranged in the multimedia player, the multimedia player can be connected with the mobile phone of the user and synchronizes information, the user can replace the multimedia player through the mobile phone, the use is more convenient, and the user can share the position information through the mobile phone, so that the user can conveniently and quickly find the position information by other people.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention.
In the drawings:
FIG. 1 is a block diagram of a shopping guide system of the present invention;
FIG. 2 is a block diagram of the positioning module workflow of the present invention;
fig. 3 is a link switching diagram of the mobile receiver of the present invention in the visible overlap region of two LEDs.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.
Example (b): as shown in fig. 1, an indoor shopping guide system based on visible light communication includes a server, a positioning module, a guiding module and a shopping guide predicting module;
the server is internally provided with a database for storing indoor layout information and is respectively connected with the positioning module, the guiding module and the shopping guide predicting module;
the positioning module comprises a transmitting end and a mobile receiving end, wherein the transmitting end is used for transmitting visible light containing identification codes and redundant codes, the transmitting end comprises a plurality of LED lamps arranged indoors and VLID encoders connected with the LED lamps, the VLID encoders are used for encoding the LED lamps, the mobile receiving end moves indoors along with a user, the mobile receiving end comprises a receiver and a multimedia player, the receiver is used for receiving visible light signals, reading the identification codes and the redundant codes in the visible light signals, and the multimedia player monitors the result read by the receiver and automatically plays multimedia data corresponding to the result;
in order to ensure the stability of illumination, the positioning module adjusts the brightness of the LED by adopting pulse width modulation and changing modulation depth.
As shown in fig. 2, when the service is located: the mobile receiving end is used for moving indoors, when the mobile receiving end moves to an LED lamp irradiation area, the receiver receives visible light signals, wherein the receiver comprises a photoelectric receiving circuit, a filter, a level decision device and a decoder, the photoelectric receiving circuit receives visible light, the visible light is sequentially subjected to self-adaptive amplification, filter processing and level decision device processing and is sent to the decoder for decoding, the decoder identifies an original code of the visible light, compares an identification code table, if the identification code serial number exists, the identification code and a redundant code table are further compared, if the identification code serial number is matched, the identification code is sent to a multimedia player independently, wherein the sending mode can be serial port communication or USB, the multimedia player is connected with the decoder through a monitoring communication interface, receives information matched with the decoder, calls a database in a server, plays related information, and a user can know related information of articles in the area, the reasonable redundant code can ensure that the system has certain error checking capability, can effectively avoid error code conditions, and can effectively reduce the occurrence of errors by matching with a pre-established identification code table after the mobile receiving end receives the redundant code and the identification code sequence.
When the mobile receiving end continues to move, a link switching algorithm is contained in the mobile receiving end, when the receiving end moves from the coverage area of a first LED lamp to the coverage area of an adjacent second LED lamp, if the signal intensity of the second LED lamp exceeds the signal intensity of the first LED lamp by a lag margin H, a link switching process is started in a visual overlapping area, and after the switching process is completed, a signal of the second LED lamp is received, and matched information under the signal is read;
the hysteresis margin H value is a key parameter of the link switching performance, and the parameter may affect the link switching amount and the visible overlap region, and generally, a higher H value can reduce the unnecessary link switching amount, but requires a larger visible overlap region;
as shown in FIG. 3, it is assumed that the receiving end moves along a line connected by the two LED projections, in which case the receiving end moves the greatest distance in the visible overlap region, which is referred to as the visible overlap distance dOAThe receiving end identifies and distinguishes the signal power from LED1 and LED2, and when the receiving end moves into the visible overlap region, the signal intensity from both LEDs will be continuously calculated;
assuming that a link switch can be initiated at point P, from which point the receiver needs to move an additional distance to successfully complete the link switch, the link switch is initiated until the distance d the receiver moves when the link switch is completeddelayComprises the following steps: ddelay＝Td×v；
And enabling the key parameters of the link performance to meet the following conditions:
based on the above formula, the visible overlap region d can be obtainedOAThe conditions of (1):
wherein h is the vertical height of the receiving end and the transmitting end, psicIs the field angle of the receiving end, H is the hysteresis margin, TdV is the speed of the receiving end for the link delay time, and for the setting of the hysteresis margin, the visible overlap region d is passedOADetermining the most suitable hysteresis margin;
the guiding module is connected with the positioning module, reads the positioning information of the mobile receiving end, when a user selects a destination on the display screen, the guiding module calls the layout information in the server database, automatically plans a mobile route on the display screen of the multimedia player, brings convenience to the user to reach the destination, and simultaneously displays the indoor layout information on the route, and brings convenience to the user to know;
the shopping guide prediction module is connected with the positioning module, reads the positioning information of the mobile receiving end, monitors the occurrence frequency of the mobile receiving end in the positioning area, compares the occurrence frequency with a preset value, wherein the preset value is a value larger than 3, can be set according to actual conditions, for example, according to indoor area, the preset value is a value around 3 or 3 when the area is large, when the area is small, the moving range of people is small, the frequency appearing in the same place is increased, so the preset value is a larger proper value, according to the layout of the position area, when the area is located in a more central place in the room, the preset value is small, when the area is located in a more central place in the room, the preset value is large, when the outburst amount or the occurrence frequency exceeds the preset value, the position area is defined as an interest area, the position information of the interest area is fed back to the server, and the server receives the signal fed back, calling position data associated with the position, wherein the associated position data refers to an area which is the same type of goods as the area, for example, if the user is in the area of the hat, the server automatically pushes the related information such as the clothing area, the jewelry area and the like to the positioning module, is displayed on the display screen of the multimedia player, is convenient for guiding shopping, and is internally provided with a Bluetooth module, the Bluetooth module is connected with the mobile phone of the user to synchronize the data displayed on the multimedia player to the mobile phone of the user, and the data of the interest area is synchronized to the mobile phone of the user, the user can share the position of the interest area through the mobile phone, so that the interest area is convenient for other people to find, meanwhile, the interest area can be automatically synchronized to the mobile phone through the Bluetooth, and when the mobile phone is connected next time, the server automatically identifies the connection address of the mobile phone, so that the data of the interest area can be automatically displayed for the user to select.
In this embodiment, a scanning window is further installed on the multimedia player and used for scanning an article label, identifying article related information and displaying the scanned article information on the display screen, when a user purchases indoors, the article to be purchased is scanned through the scanning window, information such as the name, the category, the price, the production date and the quality guarantee period of the article is displayed on the display screen of the multimedia player, and the user can select to store the article information or delete the article information by operating the display screen, so that the user can know the purchased article in advance according to the self condition.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. The utility model provides an indoor shopping guide system based on visible light communication which characterized in that: the shopping guide system comprises a server, a positioning module, a guiding module and a shopping guide predicting module;
the server is internally provided with a database for storing indoor layout information and is respectively connected with the positioning module, the guiding module and the shopping guide predicting module;
the positioning module comprises a transmitting end and a mobile receiving end, the transmitting end is used for transmitting visible light containing identification codes and redundant codes, the mobile receiving end moves indoors along with a user, the mobile receiving end comprises a receiver and a multimedia player, the receiver is used for receiving visible light signals, reading the identification codes and the redundant codes in the visible light signals, and the multimedia player monitors results read by the receiver and automatically plays multimedia data corresponding to the results;
the guiding module is connected with the positioning module, reads the positioning information of the mobile receiving end, when a user selects a destination on the display screen, the guiding module calls the layout information in the server database, and automatically plans a mobile route and indoor layout information on the route on the display screen of the multimedia player;
the shopping guide prediction module is connected with the positioning module, reads positioning information of the mobile receiving end, monitors the occurrence frequency of the mobile receiving end in the positioning area, compares the occurrence frequency with a preset value, defines the position area as an interest area when the occurrence frequency exceeds the preset value, feeds back the position information of the interest area to the server, receives a signal fed back by the shopping guide prediction module by the server, calls position data associated with the position, pushes the position data to the positioning module and displays the position data on a display screen of a multimedia player.
2. The indoor shopping guide system based on visible light communication of claim 1, wherein: the transmitting terminal comprises a plurality of LED lamps arranged indoors and a VLID encoder connected with the LED lamps, and the VLID encoder is used for encoding the LED lamps.
3. The indoor shopping guide system based on visible light communication according to claim 2, characterized in that: the mobile receiving end contains a link switching algorithm, and the algorithm specifically comprises the following steps: when the receiving end moves from the coverage area of a first LED lamp to the coverage area of an adjacent second LED lamp, if the signal intensity of the second LED lamp exceeds the signal intensity of the first LED lamp by a lag margin H, a link switching process is started in the visual overlapping area.
4. The indoor shopping guide system based on visible light communication according to claim 2, characterized in that: the positioning module adjusts the brightness of the LED by adopting pulse width modulation and changing modulation depth.
5. The indoor shopping guide system based on visible light communication of claim 1, wherein: the receiver comprises a photoelectric receiving circuit, a filter, a level decision device and a decoder, wherein the photoelectric receiving circuit receives visible light, the visible light is sequentially subjected to self-adaptive amplification, filter processing and level decision device processing and is sent to the decoder for decoding, the decoder identifies original codes in the visible light, an identification code table is compared, and redundant codes and identification codes are matched.
6. The indoor shopping guide system based on visible light communication of claim 5, wherein: the multimedia player is connected with the decoder through the interception communication interface, receives the information matched with the decoder, calls the database in the server and plays the related data.
7. The indoor shopping guide system based on visible light communication of claim 1, wherein: the multimedia player is also provided with a scanning window which is used for scanning the label of the article, identifying the related information of the article and displaying the scanned article information on the display screen, wherein, the user selects to store the article information or delete the article information by operating the display screen.
8. The indoor shopping guide system based on visible light communication of claim 7, wherein: the multimedia player is internally provided with a Bluetooth module which is connected with a user mobile phone through the Bluetooth module, data displayed on the multimedia player is synchronized to the user mobile phone, the data of the interest area is synchronized to the user mobile phone, and the data of the interest area can be automatically displayed for the user to select when the multimedia player is connected next time.
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| CN113093105A (en) * | 2021-04-09 | 2021-07-09 | 中国人民解放军战略支援部队信息工程大学 | Visible light indoor positioning method, device and system and related products |
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