EP0357719A1 - Systeme de recherche marketing pour l'obtention de donnees relatives au commerce de detail - Google Patents

Systeme de recherche marketing pour l'obtention de donnees relatives au commerce de detail

Info

Publication number
EP0357719A1
EP0357719A1 EP89902336A EP89902336A EP0357719A1 EP 0357719 A1 EP0357719 A1 EP 0357719A1 EP 89902336 A EP89902336 A EP 89902336A EP 89902336 A EP89902336 A EP 89902336A EP 0357719 A1 EP0357719 A1 EP 0357719A1
Authority
EP
European Patent Office
Prior art keywords
store
market research
data
recited
retail
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP89902336A
Other languages
German (de)
English (en)
Other versions
EP0357719A4 (en
Inventor
James N. Daniel, Jr.
Thomas F. Busyn
Brent T. Batterman
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
TNC US Holdings Inc
Original Assignee
AC Nielsen Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by AC Nielsen Co filed Critical AC Nielsen Co
Publication of EP0357719A1 publication Critical patent/EP0357719A1/fr
Publication of EP0357719A4 publication Critical patent/EP0357719A4/en
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M11/00—Telephonic communication systems specially adapted for combination with other electrical systems
    • H04M11/002—Telephonic communication systems specially adapted for combination with other electrical systems with telemetering systems
    • 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
    • G06Q20/00—Payment architectures, schemes or protocols
    • G06Q20/38—Payment protocols; Details thereof
    • G06Q20/387—Payment using discounts or coupons
    • 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
    • G06Q30/02—Marketing; Price estimation or determination; Fundraising
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07G—REGISTERING THE RECEIPT OF CASH, VALUABLES, OR TOKENS
    • G07G1/00—Cash registers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L43/00—Arrangements for monitoring or testing data switching networks

Definitions

  • the present invention generally relates to systems and methods for the collection of market re ⁇ search data from a plurality of cooperating retail stores each of which utilizes Point-Of-Sale (PCS) optical scanners/registers and associated automatic controllers. More particularly, the present invention concerns a substantially totally passive or non-inva ⁇ sive automated system and method for collecting market research data on a real-time basis from a plurality of cooperating retail stores.
  • PCS Point-Of-Sale
  • Point-Of-Sale purchasing information from retail stores for purposes of market research are old and well-known, particularly since the advent of Point- Of-Sale (POS) optical scanners and the widespread use of the Universal Product Code (UPC) to identify retail products.
  • POS Point- Of-Sale
  • UPC Universal Product Code
  • retail purchase data is sum ⁇ marized by an in-store POS controller or by a separate store computer attached to the POS controller in the store or, if the store is part of a large retail store chain, by a central or host computer at the headquarters of the retail store chain.
  • the summarized retail purchase data is then typically forwarded to the users of the data by any one of a number of different data storage and transmission techniques, for example, by magnetic tape or disk or diskette or by telephonic data transmission or by over-the-air data transmission.
  • the McKenna et al '382 patent concerns, inter alia, a data collection system for collecting at a central location television viewing data and 5 retail purchase data from a plurality of cooperating households.
  • Each of the households includes a hand held optical scanner for reading bar codes, i.e., UPC codes, associated with retail products purchased by the household.
  • Scanned retail product purchase data Q and the television viewing data are stored in a common memory in the household and are periodically trans ⁇ mitted by telephone to a central site for processing and market research analysis.
  • the Es in et al '973 patent, the Cogswell 5 et al '974 patent and the Wright, Jr. '589 patent disclose, inter alia, a market research system utiliz ⁇ ing a plurality of cooperating retail stores for ob ⁇ taining and transmitting to a central location retail product purchase information concerning a plurality Q of cooperating panelists.
  • the POS scanners in each of the cooperating retail stores scan bar encoded panelist identification cards and the UPC codes on the products purchased by each such panelist.
  • Each retail store's in-store computer then stores a record
  • the Go ersall '108 patent is directed to an over-the-air market research system and method and discloses, inter alia, the collection of retail product purchase information from a plurality of cooperating households by means of a UPC scanner provided to each household.
  • retail product purchase information may be obtained from cooperating retail stores in a test area.
  • Each store's computer stores and periodically forwards a record of the retail pro ⁇ ducts purchased by each cooperating household, identi ⁇ fied by a scanned or manually entered identification code for each cooperating household, which information is periodically transmitted by telephone to a central computer for analysis by market researchers.
  • the information transmitted typically includes at least an identification of the cooperating household, an identification of the retail product purchases made by that household and the identification of the retail store transmitting the data.
  • the data collected, stored and transmitted by each such store may also include the price of each retail product purchased, the date of the purchase and the time of the purchase.
  • the Larson '775 patent discloses, inter alia, an automatic store transaction system in which a keyboard is provided at each POS terminal for enter ⁇ ing data. A transceiver is also provided at each POS terminal for transmitting data to and receiving data from a central processor. The system is particularly useful for inventory control and for providing data on sales rates and checker productivity.
  • the Johnson et al '372 patent discloses, inter alia, a market research data collection system in which market research data, corresponding to the retail products purchased by a cooperating panelist, are transmitted by telephone from each cooperating household to a remotely located central computer for processing and market research analysis.
  • the data collection system includes a hand held optical scanner located in each household for scanning and storing UPC codes and for entering and storing other related data, for example, the identification of the retail store at which the retail products were purchased.
  • several of the other above- identified patents concern systems and methods for transmitting data, such as television viewing data, from a plurality of remote locations to a central location for further processing.
  • the Ritter '783 patent discloses, inter alia, a system in which television viewing data is transmitted to a central location using either modulated RF signals or audio tones.
  • Haselwood et al '471 and '649 patents disclose, inter alia, systems in which a computer at a central location periodically contacts by telephone each of a plurality of remotely located data storage and handling units in a plurality of cooperating house ⁇ holds. Television viewing data are then transmitted from the remotely located data storage and handling units to the central location by telephone in the form of frequency modulated audio tones.
  • the Miyake '624 patent discloses, inter alia, a system in which television viewing data from one or more televisions in the household are trans ⁇ mitted in the form of a data pulse train from one transmitter over transmission lines to a survey center where the information is processed.
  • the Porter '376 patent and the Thompson '829 patent disclose, inter alia, television viewing data collection systems in which television viewing data from several television receivers in one household are transmitted to a single household data collector by, for example, a low power radio frequency transmit ⁇ ter. Subsequently, the accumulated television viewing data for the household is transmitted by telephone to a central location.
  • the Asip et al '851 patent discloses, inter alia, a data collection system for transmitting tele ⁇ vision viewing data by telephone to a central office computer.
  • the Ohta '903 patent discloses, inter alia, a bidirectional cable television system in which remote terminals in the system are polled by the cable head end for transmitting data thereto.
  • the Nickerson et al '030 patent discloses, inter alia, a television receiver monitoring system for collecting data concerning viewing habits and viewing preferences of television viewers located in a plurality of cooperating households and for trans ⁇ mitting that data by telephone to a central location for further processing and analysis.
  • a remote unit in each remotely located cooperating household includes a microprocessor, a control memory, a data store memory and a modem for initiating a telephone call to the central location.
  • the data store memory stores data concerning television channel selection and the times thereof and television viewer reaction data.
  • each such remote unit initiates a telephone call to the central location and transmits the collected data stored in the data store memory by telephone to the central location.
  • the central location can transmit new control information to each remote unit for storage at the remote unit and for controlling the operation of the remote unit until the time of the next telephone communication between the remote unit and the central location.
  • the Lurie '904 patent discloses, inter alia, a television viewing monitoring system for determining and storing the presence of individual television viewers by means of headphones that both receive the audio portion of a television broadcast and transmit by means of an infrared signal headphone identification data to the monitoring system when a particular head ⁇ phone is in use.
  • the Roberts et al '685 patent discloses, inter alia, a television viewing data collection system in which television viewing data from a plurality of homes are transmitted to a central computer by means of a switched telephone network.
  • the Smith et al '383 patent discloses, inter alia, a system for monitoring the number of people watching a television receiver and for transmitting data relating to the number of people watching a tele ⁇ vision receiver by telephone to a central location for further processing.
  • the Fuller '004 patent discloses, inter alia, a mobile vehicle data storage and transmission system that utilizes a radio frequency transmitter- receiver.
  • the Bridges, Jr. et al '078 patent discloses, inter alia, a library book circulation control system utilizing optical scanners for reading bar codes asso ⁇ ciated with library books.
  • the Anderson et al '870 patent discloses, inter alia, an audience polling system for use by lecturers in which a number of wireless transmitters are used for transmitting audience responses to ques ⁇ tions.
  • the Abe et al '491 patent discloses, inter alia, a service channel signal transmission system.
  • the Gomersall et al '880 patent discloses, inter alia, a computer operated retail pricing display system for displaying pricing and other information in real-time at the shelf or bin location of a product in a retail store.
  • the Pejas et al '881 patent discloses, inter alia, an inventory control system having an optical scanner for scanning bar codes associated with parti ⁇ cular inventory items.
  • the Kurland et al '232 patent discloses, inter alia, a market survey collection and dissemina ⁇ tion system that provides for the downloading of survey questionnaires from a central processor by telephone or by a cable television channel.
  • the Eglise '205 patent discloses, inter alia, a system for auditing vending machines.
  • central or host computers associated with the headquar ⁇ ters of a retail store chain.
  • any such data collection system and method should also be inde- pendent of the in-store POS scanner/register controller and computer and also independent of host computers at the headquarters of retail store chains, thereby enabling market research data to be collected, stored and transmitted to a central location in accordance with the particular format found most advantageous by market researchers.
  • An object of the present invention is to provide a new and improved market research system and method.
  • Another object of the present invention is to provide a new and improved, non-invasive system and method for conducting market research with respect to products sold by a plurality of retail stores.
  • Another object of the present invention is to provide a new and improved system and method for conducting market research with respect to the purchas ⁇ ing habits of a plurality of cooperating consumers.
  • An even further object of the present inven ⁇ tion is to provide a new and improved system and method for conducting market research with respect to the products purchased by customers of retail stores with ⁇ out requiring the active cooperation or participation by either the customers or the retail stores.
  • Another object of the present invention is to provide a new and improved system and method for conducting market research in which market research retail sales transaction data are collected on a real ⁇ time basis and transmitted in an expeditious manner to a central site for use by market researchers.
  • an additional object of the present invention is to provide a new and improved system and method for conducting market research through a network of cooperating retail stores in which accurate, verifi ⁇ able retail sales transaction data are collected, processed and made available to market researchers independently of the activities of the retail stores or retail store chains.
  • the present invention constitutes a new and improved system and method for conducting market research through a plurality of cooperating retail stores and, if desired, through a plurality of cooperating consumer panelists.
  • an in-store device for collecting, processing and storing on a real-time basis retail sales transaction data in a totally passive or non- invasive manner with respect to the on-going operations of the retail store.
  • the in-store device does not interfere with or require the active partici ⁇ pation of the in-store controller or computer control ⁇ ling the normal operation of the one or more POS ter ⁇ minals in each retail store.
  • each in- store device transmits the retail sales transaction data it has collected through a bidirectional communi ⁇ cations network to a central site for further process ⁇ ing and use by market researchers.
  • Each retail sales transaction detected, interpreted, processed and stored by the in-store device normally contains data corresponding to the identification of the retail store, the date of the transaction, the time of day of the transaction, the Universal Product Code (UPC) of the retail product involved in the transaction, the unit price of that product, the quantity purchased of that product, the identification of the POS terminal (scanner/register) at which the transaction occurred and a brief descrip ⁇ tion of the product.
  • Each such transaction may also include data corresponding to the unique identification code of a participating consumer panelist and may also reflect coupon redemptions, sales taxes, the method of payment, returns and/or voided purchases or transactions.
  • the in-store device can detect, process and store data reflecting the purchases made by each one of a plurality of co- operating consumer panelists.
  • the transactions collected by the in-store device enable a "market basket" analysis to be performed by identifying and storing as a group all of the products purchased by each such cooperating customer panelist and, in fact, by each customer of the retail store during each trip through a check-out counter of the retail store.
  • Each in-store device basically consists of a substantially totally passive or non-invasive sensor assembly, a sensor interface, a store loop communica ⁇ tions adapter, a central processing unit, a random access memory, a processed data storage device, a power monitor for determining whether or not the cen ⁇ tral processing unit is operating properly and a com ⁇ munications modem for connecting the in-store device to a central site communications network.
  • the in- store device may utilize one of a number of conven ⁇ tional data transmission protocols and, if desired, encryption schemes in communicating with the central site to ensure the highest reliability and security of the collected market research data.
  • each in-store device operates in an unattended mode and requires no intervention by the retail store operators or by the retail store's POS terminals, controller or computer.
  • the system and method of the present invention require no software or program modification to each retail store's control ⁇ ler or computer used in controlling the normal opera ⁇ tions of each retail store.
  • Each in-store device continuously monitors, detects, interprets, processes and stores data from its retail store under the cqntrol of an operating program stored in the in-store device, which program may be periodically updated or modified from the remotely located central site.
  • the central site includes one or more central computers for col ⁇ lecting data from each in-store device in the cooperat- ing retail stores and for further processing the data for subsequent analysis and use by market researchers.
  • FIG. 1 is a schematic illustration of a market research system and method constructed in ac ⁇ cordance with the principles of the present invention
  • FIG. 2 is a schematic diagram of a typical in-store device that forms a portion of the system and method of FIG. 1;
  • FIG. 3 is a side view of a non-invasive sensor assembly disposed physically adjacent to a portion of a store POS terminal/controller loop, con- structed in accordance with the principles of the present invention and forming a part of the in-store device of FIG. 2;
  • FIG. 4 is an enlarged, broken-away perspec ⁇ tive view of the sensor assembly of FIG. 3;
  • FIG. 5 is an electrical circuit diagram of the sensor assembly of FIGS. 3 and 4;
  • FIG. 6 is an electrical circuit diagram of a sensor interface that forms a portion of the in- store device of FIG. 2;
  • FIG. 7 is a schematic diagram of the com ⁇ ponents of the system and method of FIG. 1 located at the central site;
  • FIG. 8 is an illustrative flow chart depict ⁇ ing a portion of the operation of the in-store device of FIG. 2.
  • FIG. 1 of the drawing there is illustrated a new and improved market research method and system 10 constructed in accordance with the principles of the present invention.
  • the method and system 10 of the present invention may be used in any market area where there are cooperating retail stores that utilize Point-Of-Sale (POS) optical scan- ners in their normal retail store operation to detect bar coded information, such as a Universal Product Code (UPC), affixed to the retail products being sold.
  • POS Point-Of-Sale
  • UPC Universal Product Code
  • each cooperating retail store in the system 10 is provided with an in-store device 12 that is connected by a sensor assembly 14 to a conven ⁇ tional store data and control loop 16 in a substanti- ally totally passive or non-invasive manner so as not to interfere with or otherwise jeopardize the normal operations of a plurality of POS terminals or optical scanners/registers 18 or of a store controller or computer 20, all of which are interconnected by the store loop 16.
  • the store's controller 20 controls the operation of the scanners/registers 18 by the exchange of digital data signals through the store loop 16.
  • the sensor assembly 14 preferably is disposed adjacent a portion of the store loop 16 to enable the digital data signals present in the store loop 16 to be detected by the sensor assembly 14 and to be interpreted, locally processed and eventually transmitted by the in-store device 12 through a com ⁇ munications network 22 to a central site 24 for further processing and subsequent analysis and review by market researchers.
  • the system 10 includes approximately 6,000 in-store devices 12, one in each of approximately 6,000 cooperating retail stores, all connected by the communications network 22 to the central site 24.
  • the communications network 22 through which . the in-store devices 12 communicate with the central site 24 consists of a dial-up or switched line tele ⁇ phone connection to a nearby local node on a private X.25 packet-switched data communications network.
  • data networks are conventional, per se; and a number of such data networks are currently in commer ⁇ cial operation in this country.
  • a sub ⁇ sidiary of Dun & Bradstreet, Inc. operates such a data network under the name Dunsnet. That data network is currently being used by customers to obtain credit ratings on companies and to obtain market research information reports.
  • Each local node on the Dunsnet information network basically consists of a bank of telephone modems, each such modem connected to a data packet assembler/dissembler. The modems are conven ⁇ tionally accessed by dial-up telephone lines.
  • the communications network 22 through which the in-store devices 12 communicate with the central site 24 consists of a conventional dial-up or switched line telephone connection from each retail store di ⁇ rectly to the central site 24 over a conventional public telephone network.
  • the communications network 22 through which the in-store devices 12 communicate with the central site 24 consists of a radio modem connection to a nearby base station forming a node on a private packet- switched data network as discussed above.
  • the private network is connected directly to the central site 24.
  • a suitable radio modem is a "KDT" TM portable data terminal Model No. N1323A available from Motorola, Inc. and described in a publicly available Motorola instruction manual num ⁇ bered 68P81035C35-B, copyrighted in 1985 by Motorola, Inc.
  • the serial port on the radio modem is connected to a serial port on the in-store device 12 through an RS-232 adapter.
  • a stored program in the portable data terminal Model No. N1323A relays messages between the radio network and the in-store device 12, providing the equivalent of a 4800 baud continuous communication link between the in-store device 12 and the central site 24.
  • the communications network 22 through which the in-store device 12 communicates with the central site 24 may take the form of a Very- Small-Aperture-Terminal (VSAT) located on the exterior roof or wall of the retail store for communicating via an over-the-air Ku band microwave link to a trans- ponder in a satellite in a geostationary earth orbit.
  • VSAT Very- Small-Aperture-Terminal
  • the satellite is linked to an earth transceiving sta ⁇ tion at the central site 24.
  • Such satellite communi ⁇ cation systems are conventional and commercially avail ⁇ able.
  • a representative commercially available satellite communication system is operated by GTE Spacenet under the name SKYSTAR SYSTEM.
  • a central Hub Station of the SKYSTAR SYSTEM is located at the central site 24 for communicating in the Ku frequency band via a satellite with the Very-Small-Aperture-Terminals remotely located at the retail stores in the system 10.
  • the communications network 22 constructed in accordance with this embodiment of the present inven- tion requires no telephone line connection to the in- store devices 12 and also may be used when it is in ⁇ convenient or otherwise impractical to install a tele ⁇ phone line in a retail store for market research data collection.
  • each in- store device 12 the components of each in- store device 12 are depicted in FIG. 2.
  • the sensor assembly 14 is disposed adja ⁇ cent to the store loop 16.
  • the sensor assembly 14 (FIG. 3) may be placed physically adjacent to the electrical signal conductors or cable forming the store loop 16 or adjacent to an electrical con ⁇ nector in the store loop 16, for example, an electrical connector in the vicinity of the controller 20.
  • the sensor assembly 14 detects electrical signals, typic- ally digital data pulses, present in the store loop 16 and passing between the POS scanners/registers 18 and the controller 20.
  • the sensor assembly 14 prefer ⁇ ably is substantially totally passive or non-invasive to the store loop 16 and therefore can send no infor- mation to the store loop 16.
  • the sensor assembly 14 and the in-store device 12 cannot interfere with the normal operations of the store loop 16, the scan ⁇ ners/registers 18 and the POS controller or store computer 20.
  • the in-store device 12 also includes a sensor interface 26 that both supplies low voltage (five volts) , direct current electrical power to the sensor assembly 14 and reconstructs the digital data signals present on the store loop 16 from the time varying electrical signals or pulses received from the sensor assembly 14.
  • the store loop digital data signals reconstructed by the sensor interface 26 are provided to a conventional store loop adapter 28 that decodes the digital signals from the sensor interface 26 and passes the decoded information to a Central Processing Unit (CPU) 30.
  • CPU Central Processing Unit
  • the particular store loop adapter 28 selected for use in the in-store device 12 will ob ⁇ viously depend upon the particular type of scanners/re ⁇ gisters 18 and controller 20 in use in that store.
  • the store loop adapter 28 may take the form of a Model AW552 controller available from AW Computer Systems, Inc. of Mt. Laurel, New Jersey, USA (telephone No.
  • NCR National Cash Register
  • a similar Model AW3863 controller may be used for a store loop 16 utilizing one or more types of registers 18 manufactured by the IBM Corporation.
  • the store loop adapter 28 may take the form of a Re ⁇ tail-Net Coprocessor available from Avalon Design and Manufacturing Inc. of Costa Mesa, California, USA (telephone No. 714/432-7227) .
  • Model No. DTS545 registers 18 manufactured by Datachecker Systems, Inc. are used, the digital signals transmit ⁇ ted over the store loop 16 have a very simple, asynch ⁇ ronous communications protocol that enables a simple serial input port of the in-store device 12 to be used as the store loop adapter 28.
  • the operation of the CPU 30 is under the control of a software program contained in a variable or random access memory (RAM) 32.
  • the CPU 30 monitors the incoming data from the store loop adapter 28 and processes that data in accordance with the programmed instructions contained in the RAM 32.
  • Processed data is periodically written onto a direct access storage device (DASD) 34 that may take the form of a hard disk memory.
  • DASD direct access storage device
  • Periodically, i.e., once every several hours or once a day or once every several days or once a week, summarized retail sales transactions formatted by the CPU 30 in accordance with the pro ⁇ grammed instructions contained in the RAM 32 may be transferred from the DASD 34 by means of a communica ⁇ tions modem 36 to the central site 24.
  • the modem 36 takes the form of a conventional telephone modem that utilizes a dial-up or switched line telephone 38 for connecting the in-store device 12 to a nearby local node onj private X.25 packet- switched data communications network 22 and then directly to the central site 24.
  • the telephone 38 is shared with the retail store in which the in-store device 12 is located., the communications session between the in-store device 12 and the central site 24 will occur during "off" hours when the tele ⁇ phone 38 is not being used by personnel within the retail store.
  • data corresponding to retail sales transactions collected and stored by the in-store device 12 are up-loaded as discussed above to the central site 24.
  • the central site 24 can remotely update or change the operating program stored in the RAM 32 and perform testing, as required.
  • the remote updating or change to the operating program stored in the RAM 32 and the remote testing are per ⁇ formed in accordance with standard, well known tech ⁇ niques that are conventional, per se.
  • the CPU 30, the RAM 32 and the DASD 34 may be embodied in a commercially available IBM Personal System/2 (PS/2) Model 30 microprocessor.
  • PSD IBM Personal System/2
  • the sensor interface 26, the store loop adapter 28 and the com ⁇ munications modem 36 each represent conventional printed circuit boards or cards that may be plugged into the expansion bus of the IBM PS/2 Model 30 micro ⁇ processor.
  • That microprocessor in other applications is designed to operate conventionally in an attended fashion with an operator, a keyboard and a computer display screen. Because that microprocessor preferably operates in an unattended manner when used in the in- store device 12, a power monitor 40 is provided to take the place of an operator, keyboard and display screen.
  • the power monitor 40 is conventional, per se, and basically is used to apply conventional 120 volts alternating current power through a power con ⁇ nector 42 to the microprocessor and also to disconnect power to the microprocessor if the program being exe ⁇ cuted by the CPU 30 does not reset an internal timer in the power monitor 40 periodically, for example, once every hour.
  • the power monitor 40 interrupts power to the microprocessor and delays the reapplication of power thereto for a short time, for example, for approximately one minute. Thereafter, the power monitor 40 reapplies power to the micropro- cessor which then goes through a standard initializa ⁇ tion subroutine in order to attempt to obviate whatever failure or malfunction was previously present in the microprocessor.
  • the power monitor 40 is a separate unit from the IBM PS/2 Model 30 microprocessor used to form the major portion of the in-store device 12 in accordance with the preferred embodiment of the present invention, all of the components of the in- store device 12 are enclosed within a tamper-proof security enclosure 44 to discourage tampering with the in-store device 12.
  • the sensor assembly 14 (FIGS. 3-5) , used in detecting digital data signals present on the store loop 16, is formed as a small unobtrusive device and includes a molded plastic hous ⁇ ing 48 that, in a specific embodiment has a length of approximately 1.75 inches, a width of ' approximately 1.5 inches and a height or depth of approximately .75 inch.
  • the sensor assembly 14 preferably operates on a capacitive principle and, therefore, makes no intru ⁇ sive physical or electrical connection to the store loop 16.
  • the sensor assembly 16 is disposed physically adjacent to and in physical contact with a portion of the store loop 16.
  • That portion of the store loop 16 depicted in FIG. 3 in dotted line form may be an elongate por ⁇ tion of the data carrying electrical cable of the store loop 16 disposed generally parallel to the length of an antenna A or, alternatively, an electrical con- nector within the store loop 16.
  • the sensor assembly 14 may be physically secured to that portion of the store loop 16 by any conventional technique, for example, by one or more strips of adhesive tape 46. In the preferred embodiment of the present invention, the sensor assembly 14 is secured to an electrical connector in the store loop 16 immediately adjacent to the controller 20. Alternatively, plastic cable clips (not illustrated) secured to the molded plastic housing 48 may be used securely to attach the sensor assembly 14 to an electrical cable portion of the store loop 16.
  • the electrical com ⁇ ponents of the sensor assembly 14 are mounted on a printed circuit board 50, dimensioned to be received within and securely retained within the housing 48 by a lower end cover 52.
  • the housing 48 includes a lower internally formed recess or ridge 54 dimensioned to receive and position the lower end cover 52 within the housing 48.
  • the. lower end cover 52 is a rigid, molded plastic component that includes an electrically conductive copper ground plane 56 formed on the interior side of the lower end cover 52 that is disposed beneath and adjacent to the under side of the printed circuit board 50.
  • the housing 48 includes a pair of integrally formed, spaced-apart, internally threaded bosses 58 for receiving and securely retaining a pair of threaded fasteners 60.
  • the fasteners 60 extend through a pair of apertures 62 formed through the lower end cover 52 and through a pair of spaced apart aligned slots or recesses 64 formed in the printed circuit board 50, thereby to secure the printed circuit board 50 and the components mounted thereon and the lower end cover 52 to the housing 48.
  • the sensor assembly 14 also includes a locking nut 66 and a washer 68 for securing the lower end cover 52 to the printed circuit board 50 in a fixed, spaced-apart relationship (FIG. 3) .
  • the locking nut 66 is intern ⁇ ally threaded for engagement with a downwardly depend ⁇ ing, externally threaded elongate coaxial cable con ⁇ nector 70.
  • the printed circuit board 50 is maintained in a fixed, spaced-apart relationship with respect to the lower end cover 52 and the ground plane 56 by a metal spacer 72 (FIG. 3) formed as an enlarged portion of the connector 70.
  • the spacer 72 is physically positioned between and in contact with the ground plane 56 and the lower or under side of the printed circuit board 50.
  • FIG. 5 A preferred embodiment of the electrical circuit of the sensor assembly 14 is depicted in FIG. 5.
  • the electrical components discussed hereinafter with respect to FIG. 5 are also depicted in FIGS. 3 and 4 as mounted on the printed circuit board 50 and as enclosed within the housing 48.
  • the sensor assembly 14 includes the two-conductor, coaxial cable connector 70, the outer conductor of which is directly electric ⁇ ally connected both to the ground plane 56 through the spacer 72 and to the outer conductor of a two conductor coaxial cable 74 (FIGS. 1 and 2) that elec ⁇ trically interconnects the sensor assembly 14 to the sensor interface 26 of the in-store device 12.
  • the electromagnetic field generated by such a signal is detected by an elongate antenna A that extends above and parallel to the upper surface of the printed circuit board 50.
  • the elongate antenna portion of the anntenna A is approximately one inch long and extends parallel to and along the length of the upper surface of the printed circuit board 50.
  • the antenna A is oriented slightly beneath and along the length of the upper surface of the housing 48 directly beneath a portion of the store loop 16, for example, an elongate conductive cable or electrical connector, to maximize the detection of the electro ⁇ magnetic field associated with digital signals present in the store loop 16.
  • the antenna A is designed to operate effectively as much as one-half inch away from the store loop 16.
  • the antenna A basically ⁇ apa- citively couples the sensor assembly 14 to an electric ⁇ ally conductive portion of the store loop 16; however, the capacitance of the antenna A in relation to the store loop 16 is extremely small, for example, on the order of .001 picofarad.
  • the electromagnetic field detected by the antenna A is in the direction of and proportional to the magnitude of the digital electrical signal present in the store loop 16.
  • A is passed by a coupling capacitor Cl to a non-invert ⁇ ing, field-effect transistor input of an operational amplifier 76 which is connected and operates as a high impedance voltage follower.
  • the coupling capaci- tor Cl blocks any static electric charges that may be present while passing electrical signals detected by the antenna A to the operational amplifier 76.
  • a pair of resistors R6 and R2 are connected as a voltage divider to provide a direct current (DC) voltage of approximately 2.5 volts to the non-inverting input of the operational amplifier 76 through a resistor Rl.
  • the operational amplifier 76 basically serves as an impedance matching device with an input impedance on the order of 10 megohms and an output impedance of approximately 10,000 ohms as established by a variable resistor R3.
  • the field-effect transistor input of the operational amplifier 76 enables it to operate effectively at extremely high input impedances.
  • the sensor assembly 14 receives electrical power of approximately 5 volts DC from the sensor interface 26 via the center conductor 78 of the con ⁇ nector 70.
  • the electrical power received from the sensor interface 26 to operate the sensor assembly 14 is blocked at its input by a coupling capacitor C3 and is routed through a low pass filter circuit formed by an inductor LI and a capacitor C4 to provide power to the operational amplifier 76 and to a second opera ⁇ tional amplifier 80.
  • the resistors R2 and R6 form a voltage divider to supply the desired amount of bias voltage to the operational amplifier 80 through a resistor R4.
  • the output signal from the operational ampli ⁇ bomb 76 is attenuated by the variable resistor R3 which serves as a trimmer potentiometer; and the at ⁇ tenuated signal is supplied through a coupling capaci- tor C2 to the operational amplifier 80 that is con ⁇ nected as a differentiator or high pass filter.
  • the capacitor C2 and a feedback resistor R5 connected to the inverting input of the operational amplifier 80 configure the operational amplifier 80 to function as desired as a differentiator.
  • the output signal from the operational amplifier 80 consists of a series of positive or negative going electrical pulses that represent signal transitions, i.e., the leading and trailing edges of electrical signals, on the store loop 16.
  • the frequency of the output signal of the operational amplifier 80 depends on the frequency of the signals present on the store loop 16.
  • the output signal from the operational amplifier 80 is passed through the coupling resistor C3 to the center conduc- tor 78 of the coaxial cable connector 70 and from there via a coaxial cable 82 (FIG. 2) to the sensor interface 26.
  • the signal present on the center conduc ⁇ tor of the coaxial cable 82 is a composite signal formed by the 5 volt DC power component to which is added the time varying output signal from the sensor assembly 14 having, for example, an amplitude of ap ⁇ proximately 100 millivolts, positive or negative, and a pulse width on the order of approximately 1 micro ⁇ second.
  • the input impedance of the sensor assembly 14 is approximately 10 megohms; and the output imped ⁇ ance is approximately 600 ohms.
  • the frequency response of the sensor assembly 14 is from approximately 20,000 Hz to approximately 400,000 Hz. As described herein- above, the sensor assembly 14 behaves essentially as a low frequency, broad band amplifier to enable the sensor interface 26 to reconstruct digital data signals of various encoding schemes and of various transmission rates present on the store loop 16.
  • Suitable component values for the electrical components of the sensor assembly 14 are set forth below:
  • the operational amplifiers 76 and 80 may be component parts of a single integrated circuit available from any one of a number of different manufacturers. For example, a model LM353 operational amplifier have been found to be suitable for use as the operational amplifier 76 or the operational amplifier 80. For space considerations, two smaller capacitors may be connected electrically in parallel to form each of the capacitors C3 and C4 (FIGS. 3-4) .
  • SENSOR INTERFACE 26 The electrical circuit diagram for the sensor interface 26 is depicted in FIG. 6.
  • the sensor inter ⁇ face 26 is located within the in-store device 12 and includes a sensor power interface 84 formed by a re ⁇ sistor Rl, an inductor Ll and a capacitor Cl.
  • the sensor power interface 84 provides the low voltage, direct current power to operate the active components of the sensor assembly 14. Power from the power inter- face 84 is blocked from the rest of the circuitry of the sensor interface 26 by a coupling capacitor C2.
  • the inductor Ll blocks the high frequency signal com ⁇ ponent present on the signal lead from the sensor assembly 14.
  • the coupling or input capacitor C2 blocks the direct current from a variable gain operational amplifier 88 while passing the input pulses from the sensor assembly 14 to the inverting input of the opera ⁇ tional amplifier 88.
  • the amplifier 88 is connected as an inverting amplifier; and the non-inverting input of the amplifier 88 is biased to direct current voltage level of approximately +2.5 volts through the resistors R2, R4 and R5.
  • the gain of the amplifier 88 is ad ⁇ justed from a minimum gain of approximately unity to a maximum gain of approximately eleven by adjusting the variable feedback resistor R7.
  • the gain of the amplifier 88 is set when the in-store device 12 is initially installed in a particular retail store to provide the proper output signals to the store loop adapter 28 depending upon the particular characteris- tics of the store loop 16 and of the scanners/registers 18 and of the controller or store computer 20.
  • the output of the amplifier 88 is provided to the non-inverting input of an operational amplifier 90 connected as a unity-gain voltage follower, the output of which is fed to a Schmitt Trigger 92 that is connected as a NAND gate and that provides noise immunity to or suppression of signals having magnitudes less than the expected magnitudes of signals of interest. In addition, it provides an output digital signal having rapid rise times as compared to the slower rise times associated with the input signal to the Schmitt Trigger 92.
  • the Schmitt Trigger 92 switches to a low output voltage level. If the output voltage from the amplifier 90 falls below a second, lower threshold level, the Schmitt Trigger 92 switches to a high output voltage level.
  • a second Schmitt Trigger 94 connected as a NAND gate serves as an inverter for providing an input signal of proper polarity to a conventional line driver 96.
  • the line driver 96 is a standard RS232 line driver that converts an input signal having a logic level 1 to an output signal with a -12 volt DC level. Similar- ly, an input signal having a logic level 0 is converted to a +12 volt DC output signal.
  • the amplifiers 88 and 90, the Schmitt Triggers 92 and 94 and the line driver 96 are conventional integrated circuits avail ⁇ able from any one of a number of integrated circuit manufacturers.
  • the output signal from the sensor interface 26 via the line driver 96 is suitable for use as an input signal to any one of a variety of different types of store loop adapters 28 discussed hereinabove.
  • FIG. 7 is a schematic diagram of typical components of the market research system 10 that would be located at the central site 24 of the system 10.
  • a telephone 102 represents a telephone connection from the communications network 22 to a conventional telephone modem 104 that, in turn, is connected to an IBM model 3725 communications control ⁇ ler 108.
  • the communications controller 108 is directly connected to an IBM model 3090-200 central processor 110 for enabling the central processor 110 to communi ⁇ cate with the communications network 22.
  • the central processor 110 is a very large central processing unit that receives incoming data from the many retail stores in the system 10 through the communications network 22 and that formats that data for further processing at the central site 24.
  • the central processor 110 formats output data for delivery to customers of the market research system 10 and also handles the updating of or modifications to the operat ⁇ ing instructions or programs stored in the RAMs 32 of the in-store devices 12.
  • the incoming data from the communications network 22 is transferred to a shared, very large direct access storage device (DASD) 112.
  • the DASD 112 serves as a very large data base having a storage capacity of billions of bytes of information. Any one of a number of commercially available data storage devices, for example, IBM model 3380 memory devices, may be inter ⁇ connected or configured to form the DASD 112 at the central site 24.
  • An IBM model 3090-600 central processor 114 shares the DASD 112 with the central processor 110 and is used to perform the many calculations required on the input data delivered from the retail stores and also to perform statistical calculations necessary in producing output reports for customers of the market research system 10. OPERATION OF SYSTEM 10
  • FIG. 8 depicts a flowchart setting forth the basic operation of the system 10 and, more parti ⁇ cularly, of each in-store device 12.
  • the various steps depicted in the flowchart of FIG. 8 are carried out by the CPU 30 (FIG. 2) under the control of the operational instructions or program contained in the RAM 32, as periodically updated or modified by down ⁇ loaded data and instructions from the remotely located central processor 110.
  • An initialization subroutine is executed upon power-up of the in-store device 12 and after each communications session with the central site 24.
  • the real-time clock contained in the in-store device 12 is synchronized with the last time check received from the central site 24.
  • Unneeded "snapshot" memory files contained in the RAM 32 are deleted; and the monitoring program for controlling the operation of the in-store device 12 through the CPU 30 is loaded into the RAM 32 and initiated.
  • the above initialization subroutine is fol ⁇ lowed by a "SNAP?" subroutine which determines if a "snapshot" of the data temporarily stored in the RAM 32 should be taken.
  • all collected and processed data from the store loop 16 temporarily stored in the RAM 32 are removed from the RAM 32 and stored in any one of a number of different formats in the DASD 34.
  • This transfer of data from the RAM 32 to the DASD 34 is performed every few minutes so that, in the case of a power outage to the in-store device 12, the device 12 can automatically recover and resume the operations it was performing at the time of the power outage.
  • a "snapshot" is to be taken, a "DO SNAPSHOT" subroutine is executed during which the data files temporarily stored in the RAM 32 are trans ⁇ ferred to the DASD 34; and a timer is set to indicate when the next "snapshot" subroutine is to be executed.
  • a "HOST?" subroutine is executed.
  • This subroutine determines if a communi ⁇ cations session with the central site 24 is to be executed by the in-store device 12.
  • Each in-store device 12 is assigned a periodic communications session schedule, for example, a nightly communications schedule, along with alternative times if an attempt to establish communications with the central site 24 is unsuccessful.
  • a "DO HOST COMMUNICATIONS" subroutine initially writes any necesssary information files, for example, files containing performance data relating to the operation of the in-store device 12, to the DASD 34. During this subroutine, active moni ⁇ toring of the store loop 16 is interrupted.
  • a conventional communications subroutine is then initiated which controls the transfer of data and instructions between the in-store device 12 and the central site 24.
  • a typical communications session initially involves determining whether the telephone 38 (FIG. 2) is in use and, assuming it is not in use, accessing the telephone 38 and dialing the telephone number of the nearest local node on the private packet- switched data network referred to hereinabove. If a telephone connection is successfully established with a node on the data network, network routing commands are exchanged in order to establish a connection be- tween the in-store device.12 and the central site 24. Assuming that a connection is successfully established with the central site 24, a series of log-on and pass ⁇ word or security commands are transmitted to prevent unauthorized access to the central site 24.
  • the in-store device 12 issues commands to upload its data files from the DASD 34 to the central processor 110 and the DASD 112.
  • status and diagnostic data may be uploaded at this time from the in-store device 12 to the central site 24.
  • various parameters such as the time to initiate a communica ⁇ tions session, may be downloaded from the central site 24 to the in-store device 12 along with updated or modified programs or operating instructions for controlling the operation of the in-store device 12.
  • Clock synchronization data is then downloaded from the central site 24 to the in-store device 12 for use in the initialization subroutine referred to herein- above.
  • the communications subroutine being executed by the CPU 30 in the in-store device 12 then logs-off from the central site 24 and from the communications network 22 and restores the telephone 38 to its normal status in which it is available for use by personnel within the retail store.
  • the CPU 30 executes the initialization subroutine referred to above.
  • a "DATA?” subroutine is executed in which it is determined whe- ther or not there is any data present in a buffer memory in the store loop adapter 28 awaiting processing by the CPU 30. If no data is present in the buffer memory of the store loop adapter 28, control passes to the "SNAP?" subroutine discussed above. If data is present in the buffer memory of the store loop adapter 28, a "GET CHARACTER” subroutine is performed. This subroutine obtains a single data character from the buffer memory in the store loop adapter 28 and temporarily stores it in a pending buffer memory if that character is part of a transac ⁇ tion of interest. Subsequently, a "PUT CHARACTER INTO
  • TRANSACTION subroutine decodes the character received from the buffer memory of the store loop adapter 28 and builds a complete transaction of interest, one character at a time. For example, when a retail pro- duct is scanned by the scanner/register 18, a signal is passed by the store loop 16 to the controller 20 identifying the specific scanner/register 18 involved in that transaction. Subsequently, the function being performed in the transaction, for example, the function of scanning, is normally identified, typically followed by a twelve character Universal Product Code (UPC) and, possibly, by the quantity of the items purchased with that specific code. Typically, the above informa ⁇ tion is accumulated by the controller 20, one character at a time. When the information is complete, the controller 20 normally responds with both the current price and a.
  • UPC Universal Product Code
  • the above information constitutes a typical retail sales transaction that is monitored and built up one character at a time by the in-store device 12 via this program subroutine.
  • Control passes to a "TRANSACTION COMPLETE?” subroutine that determines whether a trans ⁇ action has been completely collected.
  • a particular transaction might involve twenty-five to thirty char ⁇ acters so that the above operational loop may have to be executed at least that many times in order to arrive at a complete transaction.
  • a complete transaction is signified by either an end of transmis ⁇ sion character or by getting the last character of the descriptive information involved in the transac ⁇ tion.
  • the data may be stored, initially in the RAM 32, in any one of a number of different desired formats.
  • a "COMPUTE KEY" subroutine constructs a "key" or identification code for the retail sales transaction.
  • the key may be composed of the Universal Product Code corresponding to the scanned retail item appended with the unit price at which the retail item was sold.
  • a "SEARCH TABLE FOR KEY" subroutine is performed in which a data table in the RAM 32 is searched to deter ⁇ mine if the key constructed during the previous sub ⁇ routine exists in the RAM 32.
  • the data table in the RAM 32 contains keys previously constructed in accord- ance with the above-mentioned "COMPUTE KEY” subroutine.
  • the data table is arranged in a conventional, well known binary tree structure that enables extremely rapid searches* through the data table which may contain over 30,000 different keys corresponding to 30,000 different UPC/unit price combinations.
  • an "INCREMENT COUNT" subroutine is performed in which the quantity sold field in the RAM 32 associated with that key is incremented by the amount of the quantity sold field in the transaction being processed. There ⁇ after, the program returns to the "SNAP?" subroutine.
  • an "INSERT TRANSACTION IN TABLE" subroutine is executed by which the computed key for the transac ⁇ tion is inserted in the appropriate place in the data table in the RAM 32 and the quantity sold field in the RAM 32 for that key is set to the amount of the quantity sold field in the transaction.
  • the program then returns to the "SNAP?" subroutine.
  • retail sales transac ⁇ tions determined to be complete may be formatted and stored initially in the RAM 32 and subsequently in the DASD 34 in many differ- ent desired formats.
  • complete retail sales transactions may be organized for use in "market basket" analyses by grouping together retail sales transactions corresponding to all of the purchases made by each customer during a single trip through the check-out line in the retail store.
  • All retail sales transactions occuring prior to the determination of the total amount owed by a customer for the purchase of the retail items presented to a checker during a trip through a check-out line in the retail store can be grouped together by the CPU 30 and the RAM 32 for subsequent transfer to the DASD 34 in the in-store device 12. From this information, an average "market basket" in the form of the types or quantities of retail items purchased or in the form of the cost of the items purchased can be determined for each retail store or, if desired, for a designated group of retail stores in the market research system 10.
  • a unique identification code either scanned or keyed into the scanner/register 18 can be used as a key to identify a "market basket", i.e., the items purchased and their cost, of each cooperating panelist in the market research system 10.
  • the market research system 10 is highly flexible in that the market research test area, i.e., the area in which the cooperating retail stores of the system 10 are located, may be selected as desired.
  • the market research test area may involve a single geographic locality, such as a city, county or state, or a single geographic region, such as a portion of a country, or an entire country, such as the United States of America, or even several countries, such as the United States of America and Canada.

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  • Accounting & Taxation (AREA)
  • Finance (AREA)
  • Strategic Management (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • General Business, Economics & Management (AREA)
  • Signal Processing (AREA)
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Abstract

Un système et un procédé de rassemblement de données relatives aux ventes au détail et à la recherche de marchés comprennent une pluralité de magasins de détail coopérants, comprenant chacun un dispositif (12) installé en magasin afin de rassembler, de traiter et de stocker automatiquement des informations de recherche de marché, de manière totalement passive ou non envahissante par rapport aux opérations en cours de chaque magasin de détail. Chaque dispositif installé en magasin comprend un ensemble (14) de capteur à boucle de stockage non envahissant, une interface de capteur (26), un adaptateur de communications (28) à boucle de stockage, une unité centrale de traitement (3e), une mémoire à accès sélectif (32), un dispositif de stockage de données traitées (34), un moniteur de tension de secteur (40) ainsi qu'un modem de communications (36) permettant de connecter le dispositif installé en magasin par l'intermédaiire d'un réseau de communications, à un central (24), à des fins d'utilisation ultérieure par les chercheurs de marchés. Chaque dispositif installé en magasin contrôle, détecte, interprète, traite et stocke en continu des données de transactions de ventes au détail à partir de son magasin à des fins de transmission ultérieure périodique jusqu'au central.
EP19890902336 1988-02-11 1989-01-31 Marketing research system for obtaining retail data Withdrawn EP0357719A4 (en)

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US15505288A 1988-02-11 1988-02-11
US155052 1988-02-11

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EP0357719A4 EP0357719A4 (en) 1991-01-09

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EP (1) EP0357719A4 (fr)
JP (1) JPH02503246A (fr)
AR (1) AR243034A1 (fr)
BR (1) BR8905582A (fr)
CA (1) CA1330595C (fr)
NZ (1) NZ227870A (fr)
WO (1) WO1989007868A1 (fr)

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AR243034A1 (es) 1993-06-30
CA1330595C (fr) 1994-07-05
WO1989007868A1 (fr) 1989-08-24
JPH02503246A (ja) 1990-10-04
NZ227870A (en) 1995-07-26
BR8905582A (pt) 1990-11-20
EP0357719A4 (en) 1991-01-09

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