EP0333570A1 - Apparatus for gathering and transmitting information about televised programmes audiences - Google Patents
Apparatus for gathering and transmitting information about televised programmes audiences Download PDFInfo
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- EP0333570A1 EP0333570A1 EP89400684A EP89400684A EP0333570A1 EP 0333570 A1 EP0333570 A1 EP 0333570A1 EP 89400684 A EP89400684 A EP 89400684A EP 89400684 A EP89400684 A EP 89400684A EP 0333570 A1 EP0333570 A1 EP 0333570A1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04H—BROADCAST COMMUNICATION
- H04H60/00—Arrangements for broadcast applications with a direct linking to broadcast information or broadcast space-time; Broadcast-related systems
- H04H60/35—Arrangements for identifying or recognising characteristics with a direct linkage to broadcast information or to broadcast space-time, e.g. for identifying broadcast stations or for identifying users
- H04H60/38—Arrangements for identifying or recognising characteristics with a direct linkage to broadcast information or to broadcast space-time, e.g. for identifying broadcast stations or for identifying users for identifying broadcast time or space
- H04H60/41—Arrangements for identifying or recognising characteristics with a direct linkage to broadcast information or to broadcast space-time, e.g. for identifying broadcast stations or for identifying users for identifying broadcast time or space for identifying broadcast space, i.e. broadcast channels, broadcast stations or broadcast areas
- H04H60/43—Arrangements for identifying or recognising characteristics with a direct linkage to broadcast information or to broadcast space-time, e.g. for identifying broadcast stations or for identifying users for identifying broadcast time or space for identifying broadcast space, i.e. broadcast channels, broadcast stations or broadcast areas for identifying broadcast channels
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04H—BROADCAST COMMUNICATION
- H04H60/00—Arrangements for broadcast applications with a direct linking to broadcast information or broadcast space-time; Broadcast-related systems
- H04H60/61—Arrangements for services using the result of monitoring, identification or recognition covered by groups H04H60/29-H04H60/54
- H04H60/66—Arrangements for services using the result of monitoring, identification or recognition covered by groups H04H60/29-H04H60/54 for using the result on distributors' side
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04H—BROADCAST COMMUNICATION
- H04H60/00—Arrangements for broadcast applications with a direct linking to broadcast information or broadcast space-time; Broadcast-related systems
- H04H60/76—Arrangements characterised by transmission systems other than for broadcast, e.g. the Internet
- H04H60/81—Arrangements characterised by transmission systems other than for broadcast, e.g. the Internet characterised by the transmission system itself
- H04H60/93—Wired transmission systems
- H04H60/94—Telephonic networks
Definitions
- a method and system for acquiring and transmitting audience information for television programs is provided.
- Each audience measurement or detection device comprises an internal clock, means for detecting the stopping and operation of the television set and for identifying the selected channel or channel.
- each device is interrogated by a central unit generally during the night hours and via the switched telephone network.
- the central unit in possession of the information provided by a certain number of devices, makes it possible to develop audience indices which are more or less exact, because the known devices do not make it possible to obtain information on the number of people watching a television program, or even knowing whether or not there is a spectator in front of the television set.
- the present invention aims in particular to avoid these drawbacks. To this end, it proposes a method of acquiring and transmitting information on the audience of television programs, consisting of associating audience detection devices with television sets and / or video recorders to obtain information on the audience of television programs, to record this information and their precise dates in the memories of the devices and to periodically connect a centralization unit to each of these devices by the telephone network to transfer to this unit said information recorded in the devices, characterized in that it consists in connecting the centralization unit to the switched telephone network via a digital data transport network having access points on the switched telephone network, to use this network and its connection points '' as data concentrators between the detection devices and the centralization unit and, periodically or on instruction from the centralization unit, to connect all the detection devices or at least a large number of aux to the centralization unit and to transmit in real time to this unit the information detected by the devices on the television program audience.
- the real-time transmission of the information collected by the detection devices makes it possible to immediately have data allowing the development of audience indices.
- the use of a network such as the national TRANSPAC network and its access points makes it possible, very simply and without any particular investment, to very quickly obtain a very large amount of information from a large number of hearing detection devices distributed throughout the territory, and therefore to produce representative indices of the audience at the national level.
- the TRANSPAC network is a national packet information transport network, dependent on the French Post and Telecommunications Administration.
- this network is used by the TELETEL service to allow individuals with a video terminal to query one or more databases by first dialing the call number of a videotex access point at TRANSPAC network, then the access code to the targeted database.
- Videotex access points are concentrators of terminals linked by the TRANSPAC network to an information processing system (server) associated with the database (s). The same system is used to establish connections and allow information to be exchanged between different terminals.
- the information provided by hearing detection devices is not very large, it is possible to limit the TRANSPAC type network lines which will be used for transmission to the information centralization unit to a very small number. provided by a large number of detection devices. This number is for example 2, for a fleet of around 500 detection devices.
- the method also consists in recording in memory in each detection device the call number of an access point to the transport network and an access code to the centralization unit, then having the dial automatically by the detection device, this call number and this access code, at a determined time recorded in memory in the device, and, after connection to the centralization unit and transmission of information, to disconnect the device of the transport network by means of an instruction given by the centralization unit.
- the transmission lines established between the centralization unit and the detection devices can also be used to modify, from the centralization unit, an application program loaded in the detection device, and / or the parameters. acquisition of information, and / or keywords, access codes or the like also loaded into the device, as well as synchronizing the device's internal clock with that of the central unit and possibly ensuring maintenance or checking the operation of the device.
- the information provided by the detection apparatus com take information relating to the shutdown and operation of the television set and the identity of the selected channel, and information on the number of people present in front of this television set.
- All this information can be transmitted simultaneously to the central unit, with a delay in time on the corresponding event equal to a predetermined duration.
- the information on the selected channel and that on the number of people present in front of the television set can be transmitted successively, with different delays compared to the corresponding event.
- the invention also provides a system for acquiring and transmitting information on the audience of television programs, comprising audience detection devices associated with television sets and / or video recorders, a centralization unit for the processing of the information provided by these devices and of means for transmitting information between the devices and the centralization unit, via the telephone network, characterized in that each device comprises a microprocessor, information storage memories and a modulator circuit- demodulator for a connection to the switched telephone network, and in that the information transmission means comprise access points to the switched telephone network and lines of a digital data transport network, forming data concentrators and allowing transmission by a line of said network, information provided in real time by a large number of hearing detection devices.
- the system essentially consists of audience measurement or detection devices 10 which are placed with selected people ("panelists") having at least one television set and possibly a video recorder. , which make up a representative sample of the national population, this in order to allow surveys on the audience of the various programs broadcast.
- Each device 10 is therefore associated with a television set 12, to which a video recorder 14 can be connected.
- Each device 10 comprises a modulator-demodulator (modem) circuit 16 for connection to the switched telephone network, a data processing unit 18 comprising a microprocessor and information storage memories, and circuits 20 for acquiring information on stopping and operating the television set, on the selected channel or channel and also on the operation of the video recorder, as well as, preferably, on the number of people present in front of the set 12 to watch a program.
- the apparatus 10 also includes a clock, which may be that of the information processing unit 18, and which makes it possible to accurately date the audience information acquired by the circuit 20.
- the apparatus 10 is connected to the switched telephone network 22 by a telephone line 24 of the quite conventional type, but different from the particular telephone line of the occupant of the premises.
- a centralization unit 26, for example at the national level, is designed to be connected to the various apparatuses 10 via a national network 28 for transporting packet information, which will be called the TRANSPAC network for convenience.
- the TRANSPAC network is made from the switched telephone network 22 by points 30 which are terminal concentrators and with which a telephone number, for example an abbreviated number, is associated.
- points 30 which are terminal concentrators and with which a telephone number, for example an abbreviated number, is associated.
- the centralization unit calls the apparatus 10 via the switched telephone network, by dialing the telephone number assigned to the telephone line 24; on receipt of the call, the device 10 connects to the centralization unit 26 via the circuit 16, the line 24, an access point 30 and a TRANSPAC line.
- the centralization unit 26 can then load a new application program in the memory of the processing unit 18 of the device 10, program an automatic call time, a call number, load into the memory of the unit 18 information acquisition parameters or modify the values of these parameters, synchronize the clock of the device 10 with that of the central unit 26 and also, in a conventional manner, have access to the memory of the unit 18 of the device 10 and transfer its content to the centralization unit 16.
- the processing unit 18 of the device 10 can, via the modulator-demodulator circuit 16, call the centralization unit 26 at a predetermined (programmed) time, automatically dialing the number of a point 30, then the access code of the centralization unit 26.
- the centralization unit 26 can have access to the content of the memory of the unit 18 and therefore recover the recorded information before the connection, and remain connected to the device 10 to receive in real time and progressively the audience information which is provided by the device, on the stopping or the operation of the television set 12, the channel selection, possible operation of the video recorder, and the number of people present in front of the station.
- the information collected by the apparatus 10 is generally checked or checked before being transmitted. For example, after a channel change, it is desirable to wait a few seconds before transmitting the information to check that it does not change in the meantime.
- the channel change information is therefore transmitted with a predetermined delay of between 2 and 10 seconds for example, the value of which can be modified at will.
- Information on the number of people present in front of the television set is transmitted with a greater delay, for example of the order of 10 seconds to 1 or 2 minutes, allows both on the one hand to control the information itself and on the other hand to take into account certain transient situations such as the movement of a person, his passage in front of another person, etc ...
- the information on the selected channel and the number of people present, corresponding to the same event, are therefore not simultaneously ready to be transmitted by the device 10. It is therefore possible, either to delay the information of selected channel compared to the information of people present to transmit these two types of information simultaneously, with the same known and predetermined delay of for example 30 seconds, or to transmit them one after the other, that is to say the information of channels selected as soon as they are available, then information on the number of people present as soon as they are available. It may indeed prove to be advantageous to have the information of selected channels almost immediately available to very quickly give a first trend at the national level, then to refine this estimate within 30 seconds or the following minute.
- the transmission of information between the apparatuses 10 and the centralization unit 26 requires a very small number of access lines to the TRANSPAC network on the centralization unit.
- Each of these lines has for example a transmission capacity of 19,200 baud, which makes it possible, taking into account the small volume of information transmitted in real time by a device 10, to manage the transmission of information provided by approximately 250 devices.
- Two lines are sufficient, for example, for the real-time transmission of information supplied by 500 devices simultaneously connected to the centralization unit 26.
- the cost of installing the system according to the invention is particularly reduced.
- the devices are disconnected from the TRANSPAC network on receipt of a particular order issued by the centralization unit 26.
- the information collected by these devices is then stored in the memories of the processing units 18, to be retransmitted to the centralization unit 26, either in response to a call from the latter, or automatically at the next scheduled call time by the devices 10.
- the direct connection lines, via the switched telephone network, between the centralization unit 26 and the devices 10 are only used for the initial loading of an application program into the memories of the units 18 of the devices 10 or for a modification of this program or of the parameters for acquiring information, and maintenance or verification of the correct functioning of the devices 10.
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- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Testing, Inspecting, Measuring Of Stereoscopic Televisions And Televisions (AREA)
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
Abstract
L'invention concerne l'acquisition et la transmission en temps réel d'informations sur l'audience des programmes télévisés, au moyen d'appareils de détection (10) associés aux postes de télévision (12) et reliés par le réseau téléphonique commuté (22) et le réseau TRANSPAC (28) à une unité de centralisation recueillant et traitant les informations transmises en temps réel par les appareils (10).The invention relates to the acquisition and transmission in real time of information on the audience of television programs, by means of detection devices (10) associated with television sets (12) and linked by the switched telephone network ( 22) and the TRANSPAC network (28) to a centralization unit collecting and processing the information transmitted in real time by the devices (10).
Description
L'invention concerne un procédé et un système d'acquisition et de transmission d'informations sur l'audience de programmes télévisés.A method and system for acquiring and transmitting audience information for television programs is provided.
Il existe actuellement des appareils de mesure ou de détection d'audience qui sont associés à des postes de télévision placés chez des télespectateurs dont l'ensemble constitue un échantillonnage représentatif de la population. Chaque appareil de mesure ou de détection d'audience comprend une horloge interne, des moyens de détection de l'arrêt et du fonctionnement du poste de télévision et d'identification de la chaîne ou du canal sélectionné.There are currently audience measurement or detection devices which are associated with television sets placed with viewers, the whole of which constitutes a representative sample of the population. Each audience measurement or detection device comprises an internal clock, means for detecting the stopping and operation of the television set and for identifying the selected channel or channel.
L'association chaîne sélectionnée-heure exacte permet bien entendu de déterminer quel programme est visible à l'écran.The combination of selected channel and exact time of course allows you to determine which program is visible on the screen.
Dans les systèmes actuels, toutes ces informations sont enregistrées en mémoire dans l'appareil de détection d'audience, et chaque appareil est interrogé par une unité centrale en général pendant les heures de nuit et par l'intermédiaire du réseau téléphonique commuté. L'unité centrale, en possession des renseignements fournis par un certain nombre d'appareils, permet d'élaborer des indices d'audience qui sont plus ou moins exacts, car les appareils connus ne permettent pas d'obtenir d'informations sur le nombre de personnes qui regardent un programme télévisé, ni même de savoir s'il y a ou non un spectateur devant le poste de télévision.In current systems, all this information is stored in memory in the hearing detection device, and each device is interrogated by a central unit generally during the night hours and via the switched telephone network. The central unit, in possession of the information provided by a certain number of devices, makes it possible to develop audience indices which are more or less exact, because the known devices do not make it possible to obtain information on the number of people watching a television program, or even knowing whether or not there is a spectator in front of the television set.
On a récemment proposé de nouveaux appareils de détection d'audience, qui permettent précisément de déterminer le nombre de personnes présentes devant un poste de télévision en fonctionnement, et qui, en fournissant également des informations sur l'arrêt et sur le fonctionnement du poste de télévision, et sur la chaîne sélectionnée, permettent d'élaborer des indices d'audience relativement exacts. Cependant, le stockage des informations en mémoire de chaque appareil et l'interrogation des appareils en temps différé, par exemple durant les heures de nuit, ne permet pas de disposer immédiatement des indices d'audience. La pratique a également montré que l'interrogation des appareils par l'unité centrale pendant les heures de nuit, au moyen de la ligne téléphonique du télespectateur, posait un certain nombre de problèmes tels par exemple que des conflits d'accès à la ligne téléphonique, le déclenchement d'une sonnerie d'appel au milieu de la nuit, le blocage accidentel de la ligne téléphonique, etc...Recently, new hearing detection devices have been proposed, which precisely make it possible to determine the number of people present in front of a television set in operation, and which, by also providing information on the shutdown and on the operation from the television set, and on the selected channel, make it possible to develop relatively accurate audience indices. However, the storage of information in the memory of each device and the interrogation of the devices in deferred time, for example during night hours, does not immediately provide audience indices. Practice has also shown that the interrogation of the devices by the central unit during the night hours, by means of the telephone line of the viewer, poses a certain number of problems such as for example conflicts of access to the telephone line , the triggering of a ringtone in the middle of the night, the accidental blocking of the telephone line, etc ...
La présente invention vise notamment à éviter ces inconvénients. Elle propose à cet effet, un procédé d'acquisition et de transmission d'informations sur l'audience de programmes télévisés, consistant à associer des appareils de détection d'audience à des postes de télévision et/ou des magnétoscopes pour obtenir des informations sur l'audience des programmes télévisés, à enregistrer ces informations et leurs dates précises dans les mémoires des appareils et à connecter périodiquement une unité de centralisation à chacun de ces appareils par le réseau téléphonique pour transférer à cette unité lesdites informations enregistrées dans les appareils, caractérisé en ce qu'il consiste à relier l'unité de centralisation au réseau téléphonique commuté par l'intermédiaire d'un réseau de transport de données numériques possédant des points d'accès sur le réseau téléphonique commuté, à utiliser ce réseau et ses points d'accès comme concentrateurs de données entre les appareils de détection et l'unité de centralisation et, périodiquement ou sur instruction de l'unité de centralisation, à connecter tous les appareils de détection ou au moins un grand nombre d'entre aux à l'unité de centralisation et à transmettre en temps réel à cette unité les informations détectées par les appareils sur l'audience des programmes télévisés.The present invention aims in particular to avoid these drawbacks. To this end, it proposes a method of acquiring and transmitting information on the audience of television programs, consisting of associating audience detection devices with television sets and / or video recorders to obtain information on the audience of television programs, to record this information and their precise dates in the memories of the devices and to periodically connect a centralization unit to each of these devices by the telephone network to transfer to this unit said information recorded in the devices, characterized in that it consists in connecting the centralization unit to the switched telephone network via a digital data transport network having access points on the switched telephone network, to use this network and its connection points '' as data concentrators between the detection devices and the centralization unit and, periodically or on instruction from the centralization unit, to connect all the detection devices or at least a large number of aux to the centralization unit and to transmit in real time to this unit the information detected by the devices on the television program audience.
La transmission en temps réel des informations recueillies par les appareils de détection permet de disposer immédiatement des données permettant l'élaboration des indices d'audience. L'utilisation d'un réseau tel que le réseau national TRANSPAC et de ses points d'accès permet de façon simple et sans investissement particulier, d'obtenir très rapidement une très grande quantité d'informations à partir d'un grand nombre d'appareils de détection d'audience répartis sur tout le territoire, et donc de réaliser des indices représentatifs de l'audience au plan national.The real-time transmission of the information collected by the detection devices makes it possible to immediately have data allowing the development of audience indices. The use of a network such as the national TRANSPAC network and its access points makes it possible, very simply and without any particular investment, to very quickly obtain a very large amount of information from a large number of hearing detection devices distributed throughout the territory, and therefore to produce representative indices of the audience at the national level.
Comme on le sait, le réseau TRANSPAC est un réseau national de transport d'informations par paquets, dépendant de l'Administration française des Postes et Télécommunications. De façon classique ce réseau est utilisé par le service TELETEL pour permettre à des particuliers disposant d'un terminal vidéo d'interroger une ou plusieurs bases de données en composant d'abord le numéro d'appel d'un point d'accès vidéotex au réseau TRANSPAC, puis le code d'accès à la banque de données visée. Les points d'accès vidéotex sont des concentrateurs de terminaux reliés par le réseau TRANSPAC à un système de traitement de l'information (serveur) associé à la ou aux bases de données. La même système est utilisé pour établir des connexions et permettre des échanges d'informations entre différents terminaux.As we know, the TRANSPAC network is a national packet information transport network, dependent on the French Post and Telecommunications Administration. Conventionally, this network is used by the TELETEL service to allow individuals with a video terminal to query one or more databases by first dialing the call number of a videotex access point at TRANSPAC network, then the access code to the targeted database. Videotex access points are concentrators of terminals linked by the TRANSPAC network to an information processing system (server) associated with the database (s). The same system is used to establish connections and allow information to be exchanged between different terminals.
On comprend donc que le procédé selon l'invention, qui utilise ce système pour la transmission des informations d'audience des programmes télévisés, permet très rapidement et à moindre frais d'obtenir les données nécessaires à l'élaboration des indices d'audience. Bien entendu, on peut utiliser, notamment à l'étranger, tout réseau de communication équivalent, possédant des fonctionnalités et des capacités semblables.It is therefore understood that the method according to the invention, which uses this system for the transmission of audience information of television programs, allows very quickly and inexpensively to obtain the data necessary for the development of audience indices. Of course, it is possible to use, in particular abroad, any equivalent communication network having similar functionalities and capacities.
Par ailleurs, comme les informations fournies par les appareils de détection d'audience sont peu volumineuses, il est possible de limiter à un nombre très faible les lignes du réseau de type TRANSPAC qui seront utilisées pour la transmission à l'unité de centralisation des informations fournies par un grand nombre d'appareils de détection. Ce nombre est par exemple de 2, pour un parc d'environ 500 appareils de détection.In addition, since the information provided by hearing detection devices is not very large, it is possible to limit the TRANSPAC type network lines which will be used for transmission to the information centralization unit to a very small number. provided by a large number of detection devices. This number is for example 2, for a fleet of around 500 detection devices.
De préférence, le procédé consiste également à enregistrer en mémoire dans chaque appareil de détection le numéro d'appel d'un point d'accès au réseau de transport et un code d'accès à l'unité de centralisation, puis à faire composer automatiquement par l'appareil de détection ce numéro d'appel et ce code d'accès, à une heure déterminée enregistrée en mémoire dans l'appareil, et, après connexion à l'unité de centralisation et transmission des informations, à déconnecter l'appareil du réseau de transport au moyen d'une instruction donnée par l'unité de centralisation.Preferably, the method also consists in recording in memory in each detection device the call number of an access point to the transport network and an access code to the centralization unit, then having the dial automatically by the detection device, this call number and this access code, at a determined time recorded in memory in the device, and, after connection to the centralization unit and transmission of information, to disconnect the device of the transport network by means of an instruction given by the centralization unit.
De cette façon, à un instant prédéterminé, tous les appareils se connecteront à l'unité de centralisation et lui transmettront en temps réel les informations d'audience, en restant connectés jusqu'à ce que leur parvienne un ordre de déconnexion.In this way, at a predetermined instant, all the devices will connect to the centralization unit and transmit to it real-time audience information, remaining connected until a disconnection order is received.
Les lignes de transmission établies entre l'unité de centralisation et les appareils de détection peuvent également être utilisées pour modifier, à partir de l'unité de centralisation, un programme d'application chargé dans l'appareil de détection, et/ou les paramètres d'acquisition des informations, et/ou des mots clefs, codes d'accès ou analogues également chargés dans l'appareil, ainsi qu'à synchroniser l'horloge interne de l'appareil sur celle de l'unité centrale et éventuellement à assurer une maintenance ou une vérification du fonctionnement de l'appareil.The transmission lines established between the centralization unit and the detection devices can also be used to modify, from the centralization unit, an application program loaded in the detection device, and / or the parameters. acquisition of information, and / or keywords, access codes or the like also loaded into the device, as well as synchronizing the device's internal clock with that of the central unit and possibly ensuring maintenance or checking the operation of the device.
Selon une autre caractéristique de l'invention, les informations fournies par l'appareil de détection com prennent des informations relatives à l'arrêt et au fonctionnement du poste de télévision et à l'identité de la chaîne sélectionnée, et des informations sur le nombre de personnes présentes devant ce poste de télévision.According to another characteristic of the invention, the information provided by the detection apparatus com take information relating to the shutdown and operation of the television set and the identity of the selected channel, and information on the number of people present in front of this television set.
Toutes ces informations peuvent être transmises simultanément à l'unité centrale, avec un retard dans le temps sur l'évènement correspondant égal à une durée prédéterminée.All this information can be transmitted simultaneously to the central unit, with a delay in time on the corresponding event equal to a predetermined duration.
Alternativement, les informations sur la chaîne sélectionnée et celles sur le nombre de personnes présentes devant le poste de télévision peuvent être transmises successivement, avec des retards différents par rapport à l'évènement correspondant.Alternatively, the information on the selected channel and that on the number of people present in front of the television set can be transmitted successively, with different delays compared to the corresponding event.
Il en est ainsi lorsque l'identification de la chaîne de télévision sélectionnée et la vérification de cette information se font beaucoup plus rapidement que celles du nombre de personnes présentes devant le poste de télévision. Dans certains cas, et pour certaines applications, il peut être intéressant de disposer très rapidement et quasi-immédiatement des informations relatives à la sélection d'une chaîne de télévision, ainsi qu'à la variation dans le temps de ces informations, puis d'affiner les statistiques d'audience ainsi établies en temps quasi-réel par prise en compte du nombre de personnes présentes devant chaque poste.This is so when the identification of the selected television channel and the verification of this information are done much more quickly than that of the number of people present in front of the television set. In certain cases, and for certain applications, it may be advantageous to have very quickly and almost immediately information relating to the selection of a television channel, as well as to the variation over time of this information, then to refine the audience statistics thus established in near-real time by taking into account the number of people present at each station.
L'invention propose également un système d'acquisition et de transmission d'informations sur l'audience de programmes télévisés, comprenant des appareils de détection d'audience associés à des postes de télévision et/ou des magnétoscopes, une unité de centralisation pour le traitement des informations fournies par ces appareils et des moyens de transmission d'informations entre les appareils et l'unité de centralisation, par l'intermédiaire du réseau téléphonique, caractérisé en ce que chaque appareil comprend un microprocesseur, des mémoires de stockage d'informations et un circuit modulateur- démodulateur de liaison au réseau téléphonique commuté, et en ce que les moyens de transmission d'informations comprennent des points d'accès au réseau téléphonique commuté et des lignes d'un réseau de transport de données numériques, formant concentrateurs de données et permettant la transmission par une ligne dudit réseau des informations fournies en temps réel par un grand nombre d'appareils de détection d'audience.The invention also provides a system for acquiring and transmitting information on the audience of television programs, comprising audience detection devices associated with television sets and / or video recorders, a centralization unit for the processing of the information provided by these devices and of means for transmitting information between the devices and the centralization unit, via the telephone network, characterized in that each device comprises a microprocessor, information storage memories and a modulator circuit- demodulator for a connection to the switched telephone network, and in that the information transmission means comprise access points to the switched telephone network and lines of a digital data transport network, forming data concentrators and allowing transmission by a line of said network, information provided in real time by a large number of hearing detection devices.
L'invention sera mieux comprise et d'autres buts, caractéristiques, détails et avantages de celle-ci apparaîtront à la lecture de la description explicative qui suit, faite à titre d'exemple en référence au dessin annexé qui représente schématiquement une partie d'un système d'acquisition et de transmission d'informations selon l'invention.The invention will be better understood and other objects, characteristics, details and advantages thereof will appear on reading the explanatory description which follows, given by way of example with reference to the appended drawing which schematically represents part of an information acquisition and transmission system according to the invention.
Le système est formé, pour l'essentiel, d'appareils de mesure ou de détection d'audience 10 qui sont placés chez des personnes (des "panelistes") sélectionnées disposant d'au moins un poste de télévision et éventuellement d'un magnétoscope, qui composent un échantillon représentatif de la population nationale, ceci afin de permettre des sondages sur l'audience des divers programmes diffusés.The system essentially consists of audience measurement or
Chaque appareil 10 est donc associé à un poste 12 de télévision, sur lequel peut être branché un magnétoscope 14.Each
Chaque appareil 10 comprend un circuit 16 modulateur-démodulateur (modem) de liaison au réseau téléphonique commuté, une unité 18 de traitement de données comprenant un microprocesseur et des mémoires de stockage d'informations, et des circuits 20 d'acquisition d'informations sur l'arrêt et le fonctionnement du poste de télévision, sur la chaîne ou le canal sélectionné et également sur le fonctionnement du magnétoscope, ainsi que, de préférence, sur le nombre de personnes présentes devant le poste 12 pour regarder un programme. Bien entendu, l'appareil 10 comprend également une horloge, qui peut être celle de l'unité 18 de traitement de l'information, et qui permet de dater avec précision les informations d'audience acquises par le circuit 20.Each
L'appareil 10 est relié au réseau téléphonique commuté 22 par une ligne téléphonique 24 de type tout à fait classique, mais différente de la ligne téléphonique particulière de l'occupant des lieux. Une unité 26 de centralisation, par exemple au niveau national, est conçue pour être connectée aux divers appareils 10 par l'intermédiaire d'un réseau national 28 de transport d'information par paquets, que l'on appellera réseau TRANSPAC pour plus de commodité dans la suite de la description. Plus précisément, l'accès au réseau TRANSPAC se fait à partir du réseau téléphonique commuté 22 par des points 30 qui sont des concentrateurs de terminaux et auxquels est associé un numéro de téléphone, par exemple un numéro abrégé. Une fois que l'accès au réseau TRANSPAC est réalisé, il suffit d'émettre le nom ou le numéro code d'accès au système informatique auquel on désire être raccordé, qui est ici l'unité 26 de centralisation. Lorsque la connexion entre l'unité 26 et un appareil 10 est établie, des informations peuvent bien entendu circuler dans les deux sens par la ligne téléphonique 24, le réseau commuté 22, le point d'accès 30 et la ligne correspondante du réseau TRANSPAC. Ces informations peuvent être fournies par l'unité 26 de centralisation à un appareil 10 ou bien être fournies par un appareil 10 à l'unité 26.The
Dans le premier cas, l'unité de centralisation appelle l'appareil 10 par le réseau téléphonique commuté, en composant le numéro de téléphone attribué à la ligne téléphonique 24 ; à réception de l'appel, l'appareil 10 se connecte à l'unité de centralisation 26 par l'intermédiaire du circuit 16, de la ligne 24, d'un point d'accès 30 et d'une ligne TRANSPAC. Lorsque cette connexion est établie, l'unité de centralisation 26 peut alors charger un nouveau programme d'application dans la mémoire de l'unité de traitement 18 de l'appareil 10, programmer une heure d'appel automatique, un numéro d'appel, charger dans la mémoire de l'unité 18 des paramètres d'acquisition des informations d'audience ou modifier les valeurs de ces paramètres, synchroniser l'horloge de l'appareil 10 avec celle de l'unité centrale 26 et également, de façon classique, avoir accès à la mémoire de l'unité 18 de l'appareil 10 et transférer son contenu à l'unité de centralisation 16.In the first case, the centralization unit calls the
Alternativement, l'unité de traitement 18 de l'appareil 10 peut, par l'intermédiaire du circuit modulateur-démodulateur 16, appeler l'unité de centralisation 26 à une heure prédéterminée (programmée), en composant automatiquement le numéro d'un point d'accès 30, puis le code d'accès de l'unité de centralisation 26. Lorsque la connexion est établie, l'unité de centralisation 26 peut avoir accès au contenu de la mémoire de l'unité 18 et donc récupérer les informations enregistrées avant la connexion, et rester connectée à l'appareil 10 pour recevoir en temps réel et au fur et à mesure les informations d'audience qui sont fournies par l'appareil, sur l'arrêt ou le fonctionnement du poste de télévision 12, la sélection des chaînes, le fonctionnement éventuel du magnétoscope, et le nombre de personnes présentes devant le poste.Alternatively, the
Les informations recueillies par l'appareil 10 sont en général vérifiées ou contrôlées avant d'être transmises. Par exemple, après un changement de chaîne, il est souhaitable d'attendre quelsque secondes avant de transmettre l'information pour vérifier qu'elle ne change pas dans l'intervalle. En pratique, les informations de changement de chaîne sont donc transmises avec un retard prédéterminé compris entre 2 et 10 secondes par exemple, et dont on peut modifier la valeur à volonté. Les informations sur le nombre de personnes présentes devant le poste de télévision sont transmises avec un retard plus important, par exemple de l'ordre de 10 secondes à 1 ou 2 minutes, permet tant d'une part de contrôler l'information elle-même et d'autre part de bien prendre en compte certaines situations transitoires telles que le déplacement d'une personne, son passage devant une autre personne, etc... Les informations sur la chaîne sélectionnée et sur le nombre de personnes présentes, correspondant à un même évènement, ne sont donc pas simultanément prêtes à être transmises par l'appareil 10. Il est donc possible, soit de retarder les informations de chaîne sélectionnée par rapport aux informations de personnes présentes pour transmettre ces deux types d'informations simultanément, avec le même retard connu et prédéterminé de par exemple 30 secondes, soit de les transmettre les unes après les autres, c'est-à-dire les informations de chaînes sélectionnées dès qu'elles sont disponibles, puis les informations sur le nombre de personnes présentes dès qu'elles sont elles-mêmes disponibles. Il peut en effet se révéler avantageux de disposer quasi-immédiatement des informations de chaînes sélectionnées pour donner très rapidement une première tendance à l'échelon national, puis d'affiner cette estimation dans les 30 secondes ou la minute qui suit.The information collected by the
La transmission des informations entre les appareils 10 et l'unité de centralisation 26 nécessite un nombre très faible de lignes d'accès au réseau TRANSPAC sur l'unité de centralisation. Chacune de ces lignes a par exemple une capacité de transmission 19 200 bauds, ce qui permet, compte tenu du faible volume des informations transmises en temps réel par un appareil 10 de gérer la transmission des informations fournies par 250 appareils environ.The transmission of information between the
Deux lignes suffisent par exemple pour la transmission en temps réel des informations fournies par 500 appareils connectés simultanément à l'unité de centralisation 26.Two lines are sufficient, for example, for the real-time transmission of information supplied by 500 devices simultaneously connected to the
Comme la concentration et la régulation de la transmission des informations entre les appareils et l'unité de centralisation sont réalisées par l'ensemble réseau TRANSPAC-points d'accès 30, le coût d'installation du système selon l'invention est particulièrement réduit.As the concentration and regulation of the transmission of information between devices and the centralization unit are produced by the TRANSPAC network-
Comme indiqué dans ce qui précède, les appareils sont déconnectés du réseau TRANSPAC à réception d'un ordre particulier émis par l'unité de centralisation 26. Les informations recueillies par ces appareils sont ensuite stockées dans les mémoires des unités de traitement 18, pour être retransmises à l'unité de centralisation 26, soit en réponse à un appel de cette dernière, soit automatiquement à la prochaine heure programmée d'appel par les appareils 10.As indicated in the foregoing, the devices are disconnected from the TRANSPAC network on receipt of a particular order issued by the
Les lignes de liaison directes, par le réseau téléphonique commuté, entre l'unité de centralisation 26 et les appareils 10 ne sont utilisés que pour le chargement initial d'un programme d'application dans les mémoires des unités 18 des appareils 10 ou pour une modification de ce programme ou des paramètres d'acquisition des informations, et la maintenance ou vérification du fonctionnement correct des appareils 10.The direct connection lines, via the switched telephone network, between the
Claims (10)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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FR8803297A FR2628588A1 (en) | 1988-03-14 | 1988-03-14 | METHOD AND SYSTEM FOR ACQUIRING AND TRANSMITTING INFORMATION ON THE AUDIENCE OF TELEVISION PROGRAMS |
FR8803297 | 1988-03-14 |
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EP0333570A1 true EP0333570A1 (en) | 1989-09-20 |
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EP89400684A Ceased EP0333570A1 (en) | 1988-03-14 | 1989-03-13 | Apparatus for gathering and transmitting information about televised programmes audiences |
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EP (1) | EP0333570A1 (en) |
JP (1) | JPH03501314A (en) |
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AU (1) | AU623898B2 (en) |
BR (1) | BR8906466A (en) |
CA (1) | CA1305551C (en) |
FI (1) | FI895404A0 (en) |
FR (1) | FR2628588A1 (en) |
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WO (1) | WO1989008956A1 (en) |
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Also Published As
Publication number | Publication date |
---|---|
FR2628588A1 (en) | 1989-09-15 |
AU3285489A (en) | 1989-10-05 |
FI895404A0 (en) | 1989-11-13 |
WO1989008956A1 (en) | 1989-09-21 |
PT89990B (en) | 1995-03-01 |
JPH03501314A (en) | 1991-03-22 |
KR900701107A (en) | 1990-08-17 |
AU623898B2 (en) | 1992-05-28 |
CA1305551C (en) | 1992-07-21 |
US5155762A (en) | 1992-10-13 |
PT89990A (en) | 1989-11-10 |
BR8906466A (en) | 1990-11-27 |
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