CN104182881A - Supermarket intelligent shopping guide system based on WIFI indoor positioning and positioning method - Google Patents

Supermarket intelligent shopping guide system based on WIFI indoor positioning and positioning method Download PDF

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Publication number
CN104182881A
CN104182881A CN201410349099.6A CN201410349099A CN104182881A CN 104182881 A CN104182881 A CN 104182881A CN 201410349099 A CN201410349099 A CN 201410349099A CN 104182881 A CN104182881 A CN 104182881A
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China
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server
supermarket
wifi
commodity
application
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CN201410349099.6A
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Chinese (zh)
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赵飞
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诚迈科技(南京)股份有限公司
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Priority to CN201410349099.6A priority Critical patent/CN104182881A/en
Publication of CN104182881A publication Critical patent/CN104182881A/en

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Abstract

The invention provides a supermarket intelligent shopping guide system based on WIFI (Wireless Fidelity) indoor positioning and a positioning method. The supermarket intelligent shopping guide system is characterized by comprising a WIFI positioning module, a server end system and an application end system, wherein the WIFI positioning module comprises terminal equipment and hotspot APs (Access Points) distributed in every part in a supermarket; the hotspot APs are used for providing a WIF network for equipment in the supermarket and sending the position information of each hotspot AP to a server; the terminal equipment collects commodity information codes and sends the commodity information codes to the server; and the server is used for receiving information, processing the information, storing the data into a memory, receiving a request of the application end system, sending the position information to the application end system and sending commodity information and advertisements. The method and the system provided by the invention have the advantages that the commodities can be fast and effectively positioned and navigated; the commodity sale promotion information is sent to client equipment in real time; convenience is brought to customers to consume; and the cost of merchants is also reduced.

Description

Supermarket intelligent shopping guide system and localization method based on WIFI indoor positioning
Technical field
The present invention relates to a kind of supermarket shopping guide and ad system and method, specifically, relate to a kind of supermarket intelligent shopping guide system and localization method based on WIFI indoor positioning.
Background technology
When consumer is done shopping in large supermarket, can find faster and more easily the commodity that will buy, and supermarket also can directly send to sales promotion information in smart machine and show.At present, in a lot of supermarkets, nothing is guided the equipment of consumer's shopping, and what mostly adopt is commodity direction boards, and what have the employing of part supermarket is the mode of computer inquiry, but consumer's shopping is not played to good effect.It is larger that native system is applicable to area, the large supermarket that commodity are various.Use native system, consumer need not blindly find commodity in supermarket, not only makes shopping more quick, for supermarket, also can reduce the arrangement of shoppers' guide in supermarket operation on daytime.Can increase the sales volume of supermarket consumer's flow and supermarket commodity, understand, select to buy for consumer.
Summary of the invention
Technical matters to be solved:
For above problem, a kind of supermarket intelligent shopping guide system based on WIFI indoor positioning provided by the invention and localization method can find the commodity that will buy when consumer is done shopping in large supermarket faster and more easily, and supermarket also can directly send to sales promotion information in smart machine and show.
Technical scheme:
In order to realize above function, the invention provides a kind of supermarket intelligent shopping guide system based on WIFI indoor positioning, it is characterized in that: comprise WIFI locating module, server-side system and application end system;
Described WIFI locating module comprises and is distributed in supermarket focus AP everywhere, terminal device with scanning with WIFI function; Described focus AP is used to super incity equipment that wireless WIFI network is provided, the communication of equipment room in support area, and the positional information that sends each focus AP is to server, forms supermarket map graticule; Described terminal device gathers merchandise news code, obtains merchandise news and communicates by focus AP and server, and information is sent to server;
Described server-side system comprises server, storer; Described server is for receiving the information that WIFI locating module sends, and it is processed, and data are saved in storer, carry out information interaction with application end system, receive the searching request of application end system, positional information is sent to application end system, according to transmission merchandise news and advertisement being set to application end system;
Described application end system is intelligent mobile terminal, is undertaken alternately by network and server-side system, sends searching request to server, receives merchandise news, realizes product locations route guidance, broadcast advertisement.
Described server is PC, between PC and storer, is connected by serial line interface or USB interface.
Described application end equipment is the mobile device with network function such as smart mobile phone, computer; Described terminal device is the terminal device of the band scannings such as mobile phone, computer and WIFI function.
A localization method for supermarket intelligent shopping guide system based on WIFI indoor positioning, is characterized in that: it comprises the following steps:
Step 1: start all focus AP, server, according to the situation of each AP, is drawn out the planimetric coordinates figure in supermarket;
Step 2: in supermarket commodity added after, by band scanning and the terminal device of WIFI function, merchandise news code is scanned, receive the situation of different AP signal intensities according to shelf place terminal device, analysis obtains the position (x of current commodity in supermarket, y), terminal device is packed the information code of these commodity and location coordinate information together and is sent to server, run on engine of positioning on location-server in conjunction with the information in conjunction with supermarket planimetric coordinates figure and these commodity, draw out the geographic coordinate of these commodity;
Step 3: every commodity are repeated to above-mentioned processing procedure, draw out the map reference of all commodity, and deposit database in;
Step: 4: the specific software in application end device downloads supermarket, start search engine, the trade name that input is found, by network, request is sent to server, server receives after the request of application end equipment, coordinate to be measured is carried out to pre-service, and then calibration calculations is mated with the similar value in database again, finally calculates tested point position in electronic chart and feeds back to application end.
In described step 2, the method for analyzing the position (x, y) of commodity in supermarket is three limit localization methods, specifically operation according to the following steps:
If the current position coordinates of terminal device is (x, y), and terminal device searches A, B, tri-focus AP of C, and its coordinate is (x1, y1), (x2, y2), (x3, y3), and they are respectively d1, d2, d3 to the distance of current location; Because the intensity of wireless signal is along with the increase of propagation distance decays, by radio-frequency power attenuation model:
PL=-?Gr-Gt?+?20log(4πR/λ),
Wherein Gr and Gt represent respectively the gain of receiving antenna and emitting antenna, are known according to unit type parameter; R is the distance between transceiver; λ is incident wavelength, is given value when WIFI uses 2.4GHZ frequency of operation λ; PL be the power that receives this be RSSI and obtain by wifi drive software;
Can calculate the distance of current location (x, y) point to AP; Current location can by under in establishing an equation any two solve:
(x?-?x1) 2?+?(y-?y1) 2?=?d1 2
(x?–?x2) 2+?(y-?y2) 2?=?d2 2
(x?–?x3) 2?+?(y-?y3) 2?=?d3 2
Communicating by letter between the application end equipment of mentioning in step 4 and server is that WIFI network service or GPRS network are communicated by letter.
Described purchase guiding system, according to the localization method in step 2, obtains the current location of application end equipment by WIFI, the commodity of application end equipment search are navigated, and arrives path for client provides.
Quick Response Code or bar code that described trade mark code is commodity.
In described step 4, target to be measured being carried out to pre-service refers to and carries out data error detection, then the concrete grammar that the similar value of calibration calculations again and in database mated is: based on the distance d=sqrt ((x1-x2) ^2+ (y1-y2) ^2) between 2 of Euclidean distance formula, calculate the position (R1 of multiple commodity in tested point and database, R2, RX ... ..) distance d1 between, d2, dx When dx minimum, tested point mates with reference point, and in database, corresponding commodity are exactly commodity corresponding to this test point.
Beneficial effect:
The present invention carries out promotion for large supermarket and market, finds fast own needed article in the market that facilitates consumer to meet the eye on every side your son, has saved the time cost of shopping; And can understand the current preferential situation of commodity according to the merchandise news showing in mobile phone A PP.
Navigation feature can reduce the shoppers' guide of businessman efficiently, reduces the cost of businessman.
For consumer provides many services, shopping cart is checked, location-based service, supermarket map etc., has promoted customer experience degree.
Businessman, by this system improving market brand image, enlivens Business Information and propagates.By multidate information, in real time for client pushes discount information, make client can understand the trend of businessman, guide consumption, stimulating customer consumer behavior in each place.
The present invention collects multimedia advertising, goods marketing shopping guide in sum, uses simply feature with low cost.Can be widely used in big or small market, shop, supermarket, hotel, restaurant, food and drink snack, hotel, Fang Jie intermediary, building explanation, automobile sales field, station, airport, office hall, government street, hospital, shop, hall institute, museum's exhibition room, shop floor production control and other public places.
Brief description of the drawings
Below in conjunction with drawings and Examples, the present invention is further described:
Fig. 1 is the figure of system layout of the present invention;
Fig. 2 is system interaction process flow diagram of the present invention;
Fig. 3 is three limit localization method schematic diagram;
Fig. 4 is server-side system functional diagram of the present invention;
Fig. 5 is commodity typing submodule process flow diagram;
Fig. 6 is engine of positioning submodule process flow diagram;
Fig. 7 is application end systems function diagram of the present invention;
Fig. 8 is supermarket navigation submodule process flow diagram.
Embodiment
Below in conjunction with accompanying drawing, the present invention is described in more detail:
Fig. 1 is the schematic block diagram of smart lock managing and control system of the present invention; Fig. 2 is system flowchart of the present invention; The invention provides a kind of supermarket intelligent shopping guide system based on WIFI indoor positioning, it is characterized in that: comprise WIFI locating module, server-side system and application end system;
Described WIFI locating module comprises and is distributed in supermarket focus AP everywhere, terminal device with scanning with WIFI function; Described focus AP is used to super incity equipment that wireless WIFI network is provided, the communication of equipment room in support area, and the positional information that sends each focus AP is to server, forms supermarket map graticule; Described terminal device gathers merchandise news code, obtains merchandise news and communicates by focus AP and server, and information is sent to server;
Described server-side system comprises server, storer; Described server is for receiving the information that WIFI locating module sends, and it is processed, and data are saved in storer, carry out information interaction with application end system, receive the searching request of application end system, positional information is sent to application end system, according to transmission merchandise news and advertisement being set to application end system;
Described application end system is intelligent mobile terminal, is undertaken alternately by network and server-side system, sends searching request to server, receives merchandise news, realizes product locations route guidance, broadcast advertisement.
Described server is PC, between PC and storer, is connected by serial line interface or USB interface.
Described application end equipment is the mobile device with network function such as smart mobile phone, computer; Described terminal device is the terminal device of the band scannings such as mobile phone, computer and WIFI function.
A localization method for supermarket intelligent shopping guide system based on WIFI indoor positioning, is characterized in that: it comprises the following steps:
Step 1: start all focus AP, server, according to the situation of each AP, is drawn out the planimetric coordinates figure in supermarket;
Step 2: in supermarket commodity added after, by band scanning and the terminal device of WIFI function, merchandise news code is scanned, receive the situation of different AP signal intensities according to shelf place terminal device, analysis obtains the position (x of current commodity in supermarket, y), terminal device is packed the information code of these commodity and location coordinate information together and is sent to server, run on engine of positioning on location-server in conjunction with the information in conjunction with supermarket planimetric coordinates figure and these commodity, draw out the geographic coordinate of these commodity;
Step 3: every commodity are repeated to above-mentioned processing procedure, draw out the map reference of all commodity, and deposit database in;
Step: 4: the specific software in application end device downloads supermarket, start search engine, the trade name that input is found, by network, request is sent to server, server receives after the request of application end equipment, coordinate to be measured is carried out to pre-service, and then calibration calculations is mated with the similar value in database again, finally calculates tested point position in electronic chart and feeds back to application end.
In described step 2, the method for analyzing the position (x, y) of commodity in supermarket is three limit localization methods, specifically operation according to the following steps:
If the current position coordinates of terminal device is (x, y), and terminal device searches A, B, tri-focus AP of C, and its coordinate is (x1, y1), (x2, y2), (x3, y3), and they are respectively d1, d2, d3 to the distance of current location; Because the intensity of wireless signal is along with the increase of propagation distance decays, by radio-frequency power attenuation model:
PL=-?Gr-Gt?+?20log(4πR/λ),
Wherein Gr and Gt represent respectively the gain of receiving antenna and emitting antenna, are known according to unit type parameter; R is the distance between transceiver; λ is incident wavelength, is given value when WIFI uses 2.4GHZ frequency of operation λ; PL be the power that receives this be RSSI and obtain by wifi drive software;
Can calculate the distance of current location (x, y) point to AP; Current location can by under in establishing an equation any two solve:
(x?-?x1) 2?+?(y-?y1) 2?=?d1 2
(x?–?x2) 2+?(y-?y2) 2?=?d2 2
(x?–?x3) 2?+?(y-?y3) 2?=?d3 2
Communicating by letter between the application end equipment of mentioning in step 4 and server is that WIFI network service or GPRS network are communicated by letter.
Described purchase guiding system, according to the localization method in step 2, obtains the current location of application end equipment by WIFI, the commodity of application end equipment search are navigated, and arrives path for client provides.
Quick Response Code or bar code that described trade mark code is commodity.
In described step 4, target to be measured being carried out to pre-service refers to and carries out data error detection, then the concrete grammar that the similar value of calibration calculations again and in database mated is: based on the distance d=sqrt ((x1-x2) ^2+ (y1-y2) ^2) between 2 of Euclidean distance formula, calculate multiple approximate reference point (R1 in tested point and database, R2, RX ... ..) distance d1 between, d2, dx When dx minimum, tested point mates with reference point, and in database, corresponding commodity are exactly commodity corresponding to this test point.
WIFI locating module function declaration:
Three limit localization methods: respectively taking 3 AP of known location as the center of circle, the distance of the nearest reference label taking each to label to be measured is justified as radius.The intersection point of 3 circles of gained be D. triangle algorithm schematic diagram as shown in Figure 1.
If nodes of locations D(x, y), the coordinate that known A, B, C are 3 is (x1, y1), (x2, y2), (x3, y3).They are respectively wherein d1 of d1, d2, d3. to the distance of D, d2, obtaining of d3 is crucial, and the intensity of wireless signal decays along with the increase of propagation distance, and the signal intensity that measurement receives according to terminal and radio-frequency power attenuation model just can calculate the distance of test point to AP.Receive A by D point, B, the signal intensity (RSSI) of 3 AP of C is in conjunction with radio-frequency power attenuation model PL=-Gr-Gt+20log (4 π R/ λ), wherein Gr and Gt represent respectively the gain (being known according to unit type parameter) of receiving antenna and emitting antenna, R is the distance between transceiver, λ is that incident wavelength is worked as WIFI to use the 2.4GHZ λ that works be given value, PL be the power that receives this be RSSI and obtain by wifi drive software.
The position of D can by under in establishing an equation any two solve.
(x?-?x1) 2?+?(y-?y1) 2?=?d1 2
(x?–?x2) 2+?(y-?y2) 2?=?d2 2
(x?–?x3) 2?+?(y-?y3) 2?=?d3 2
Server-side system function declaration:
Commodity typing submodule function declaration: this module, for Rapid input commodity essential information, is obtained the essential information of commodity by carry out Quick Response Code scanning with the mobile phone of scan function and WIFI function.Receive the signal intensity combination algorithm model analysis of three AP according to mobile phone simultaneously, calculate the coordinate position (x of these commodity, y). now mobile phone is packed the 2 D code information of these commodity and location coordinate information together and is sent to location-server, runs on engine of positioning on location-server and draw out in conjunction with the information of market layout and these commodity the map reference of this point.
All commodity, through this resume module, are finally drawn out the electronic chart of all commodity in whole supermarket, and are deposited database in.
Engine of positioning submodule function declaration: accept the Location Request from application end transmission, coordinate to be measured is carried out to pre-service, carry out data error detection, then the concrete grammar that the similar value of calibration calculations again and in database mated is: based on the distance d=sqrt ((x1-x2) ^2+ (y1-y2) ^2) between 2 of Euclidean distance formula, calculate the position (R1 of multiple commodity in tested point and database, R2, RX ... ..) distance d1 between, d2, dx When dx minimum, tested point mates with reference point, and in database, corresponding commodity are exactly commodity corresponding to this test point.Finally calculate tested point position in electronic chart and feed back to application end.
Supermarket shopping guide's submodule function declaration: this module is carried out information of discount and sell oneself information pushing for supermarket.
The explanation of application end systemic-function:
Application end running software, on smart machine, comprises andirod and OS system.Interconnected by WIFI and server, carry out data interaction.
Commercial articles searching submodule function declaration: this module provides commodity search engine for user, and this request sends to server, returns to the electronic labeling information of these commodity after the complete request of server process, display of commodity position in the map of supermarket.
Supermarket navigation submodule function declaration: this module is guided for user provides shopping, and user can search for entrance, outlet, toilet.And cashier queuing situation, for user saves time.
My position submodule function declaration: this module provides current position for user.
My shopping cart submodule function declaration: user is scanned the essential information of obtaining commodity by Quick Response Code, easily checks this shopping artificial situation, and the integration activity of businessman.

Claims (9)

1. the supermarket intelligent shopping guide system based on WIFI indoor positioning, is characterized in that: comprise WIFI locating module, server-side system and application end system;
Described WIFI locating module comprises and is distributed in supermarket focus AP everywhere, terminal device with scanning with WIFI function; Described focus AP is used to super incity equipment that wireless WIFI network is provided, the communication of equipment room in support area, and the positional information that sends each focus AP is to server, forms supermarket map graticule; Described terminal device gathers merchandise news code, obtains merchandise news and communicates by focus AP and server, and information is sent to server;
Described server-side system comprises server, storer; Described server is for receiving the information that WIFI locating module sends, and it is processed, and data are saved in storer, carry out information interaction with application end system, receive the searching request of application end system, positional information is sent to application end system, according to transmission merchandise news and advertisement being set to application end system;
Described application end system is intelligent mobile terminal, is undertaken alternately by network and server-side system, sends searching request to server, receives merchandise news, realizes product locations route guidance, broadcast advertisement.
2. a kind of supermarket intelligent shopping guide system based on WIFI indoor positioning according to claim 1, is characterized in that: described server is PC, between PC and storer, is connected by serial line interface or USB interface.
3. a kind of supermarket intelligent shopping guide system based on WIFI indoor positioning according to claim 1, is characterized in that: described application end equipment is the mobile device with network function such as smart mobile phone, computer; Described terminal device is the terminal device of the band scannings such as mobile phone, computer and WIFI function.
4. a localization method for the supermarket intelligent shopping guide system based on WIFI indoor positioning, is characterized in that: it comprises the following steps:
Step 1: start all focus AP, server, according to the situation of each AP, is drawn out the planimetric coordinates figure in supermarket;
Step 2: in supermarket commodity added after, by band scanning and the terminal device of WIFI function, merchandise news code is scanned, receive the situation of different AP signal intensities according to shelf place terminal device, analysis obtains the position (x of current commodity in supermarket, y), terminal device is packed the information code of these commodity and location coordinate information together and is sent to server, run on engine of positioning on server in conjunction with the information in conjunction with supermarket planimetric coordinates figure and these commodity, draw out the geographic coordinate of these commodity;
Step 3: every commodity are repeated to above-mentioned processing procedure, draw out the map reference of all commodity, and deposit database in;
Step: 4: the specific software in application end device downloads supermarket, start search engine, the trade name that input is found, by network, request is sent to server, server receives after the request of application end equipment, coordinate to be measured is carried out to pre-service, and then calibration calculations is mated with the similar value in database again, finally calculates tested point position in electronic chart and feeds back to application end.
5. the localization method of a kind of supermarket intelligent shopping guide system based on WIFI indoor positioning according to claim 4, it is characterized in that: in described step 2, the method of analyzing the position (x, y) of commodity in supermarket is three limit localization methods, specifically operation according to the following steps:
If the current position coordinates of terminal device is (x, y), and terminal device searches A, B, tri-focus AP of C, and its coordinate is (x1, y1), (x2, y2), (x3, y3), and they are respectively d1, d2, d3 to the distance of current location; Because the intensity of wireless signal is along with the increase of propagation distance decays, by radio-frequency power attenuation model:
PL=-?Gr-Gt?+?20log(4πR/λ),
Wherein Gr and Gt represent respectively the gain of receiving antenna and emitting antenna, are known according to unit type parameter; R is the distance between transceiver; λ is incident wavelength, is given value when WIFI uses 2.4GHZ frequency of operation λ; PL be the power that receives this be RSSI and obtain by wifi drive software;
Can calculate the distance of current location (x, y) point to AP; Current location can by under in establishing an equation any two solve:
(x?-?x1) 2?+?(y-?y1) 2?=?d1 2
(x?–?x2) 2+?(y-?y2) 2?=?d2 2
(x?–?x3) 2?+?(y-?y3) 2?=?d3 2
6. according to the localization method of a kind of supermarket intelligent shopping guide system based on WIFI indoor positioning described in claim 4 or 5, it is characterized in that: communicating by letter between the application end equipment of mentioning in step 4 and server is that WIFI network service or GPRS network are communicated by letter.
7. the localization method of a kind of supermarket intelligent shopping guide system based on WIFI indoor positioning according to claim 5, it is characterized in that: described purchase guiding system, according to the localization method in step 2, obtain the current location of application end equipment by WIFI, commodity to the search of application end equipment navigate, and arrive path for client provides.
8. according to the localization method of a kind of supermarket intelligent shopping guide system based on WIFI indoor positioning described in claim 4 or 5, it is characterized in that: Quick Response Code or bar code that described trade mark code is commodity.
9. according to the localization method of a kind of supermarket intelligent shopping guide system based on WIFI indoor positioning described in claim 4 or 5, it is characterized in that: in described step 4, target to be measured is carried out to pre-service and refer to and carry out data error detection, then the concrete grammar that the similar value of calibration calculations again and in database mated is: based on the distance d=sqrt ((x1-x2) ^2+ (y1-y2) ^2) between 2 of Euclidean distance formula, calculate the position (R1 of multiple commodity in tested point and database, R2, RX ... ..) distance d1 between, d2, dx When dx minimum, tested point mates with reference point, and in database, corresponding commodity are exactly commodity corresponding to this test point.
CN201410349099.6A 2014-07-22 2014-07-22 Supermarket intelligent shopping guide system based on WIFI indoor positioning and positioning method CN104182881A (en)

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Application publication date: 20141203