WO2010007330A2 - Light-based method and device for advising as to the consumption of an installation - Google Patents

Abstract

In the course of the method, a user of a network (16) for providing a resource is informed of advice by modifying a characteristic of a light produced continuously by a source (48) as a function of a value of consumption of the resource by an installation (14) of the user.

Description

 Method and luminous device for informing the consumption of an installation

The present invention relates to the consumption of a resource such as an energy resource and the indication of this consumption to a user via a light source.

The user of an installation, for example a dwelling, is regularly informed of the amount of electric current that he has consumed. This information is communicated to him in the invoices he receives, for example every month or every two months. But many occupants want to better control the amount of power they consume. But the receipt of the invoice with such a periodicity does not allow them to carry out a close control on this subject, nor to find the exact causes of an abnormally high consumption.

The information can also be communicated to him by an electricity meter indicating to the user consumption indices. By difference between two consecutive indexes, the user can estimate the amount of current consumed during the corresponding period. However, the result of this index difference is not significant insofar as an index difference value does not easily translate, in the eyes of the user, the consumption of the installation. In addition, the difference of the indexes requires the user to move regularly to the electric meter and to make the difference of the indexes.

An object of the invention is to allow the user of an installation to control his consumption of the resource in a simpler and more meaningful way.

To this end, the subject of the invention is a method in which information of a user of a supply network of a resource is controlled by modifying a characteristic of a light produced continuously by a source as a function of a consumption value of the resource by a user installation.

The user can thus visually and significantly control the consumption of the resource by the installation. Indeed, the use of continuously produced light allows a continuous control of the consumption. In addition, the user is informed of the consumption of the resource as well as its variations by the variation of the characteristic of the source.

This variation of the characteristic allows information in real time or slightly shifted, which effectively controls the consumption of the installation. The method according to the invention thus allows the user to know for example the individual power rate consumed by the installation of the user and not the network load rate of the resource provider. The individual power consumption rate may in particular be defined as the ratio between the instantaneous power and a subscribed power. The instantaneous power is a power consumed at a given moment by the user's network and the subscribed power is the maximum power exploitable on the network of the user. This subscribed power is generally a function of the subscription subscribed.

The resource may be of an energy nature, for example electric current, gas, water, a rate of bytes in telecommunication or even fuel oil. Advantageously, the characteristic is selected from a color and intensity of light.

These characteristics make it easy to control the consumption of the resource. Thus, in the case where the characteristic is color, pale colors, such as green or blue, can be used to indicate a low consumption of the resource while bright colors, such as red, orange or yellow , can be used to indicate an average or even high consumption of the resource. In the case where the characteristic is the intensity, it will be possible to use an increasing intensity according to the consumption of the resource.

According to other characteristics of the method according to the invention: - A transmission of data relating to the consumption is controlled from a consumption treatment device of the installation, located at the user, to a telecommunication gateway located at the user.

An attribution to the source of an identifier of the processing device is ordered.

A connection from the source to the processing device is controlled. In a first embodiment of the method, a transmission of the data from the telecommunication gateway to a processing center, remote from the installation, is controlled and a determination of the value is controlled by means of the processing center.

In a second embodiment of the method, a determination of the value is controlled by means of the processing device.

In this embodiment, the method allows almost real-time information on the consumption of the resource. Indeed, the determination of the value is made relatively quickly because of the rapid transmission of the data relating to to consumption due to the proximity of the treatment device and the source. This determination can be done by calculation or simple reading of the data.

According to an optional feature of the first embodiment, an association of the value with an indicator is controlled and a transmission of the indicator is commanded from the processing center to the source.

Assigning an indicator allows all steps of value determination within the processing center to be made and limiting the amount and type of data to be communicated to or processed by the source. In the case where the characteristic is the color of the source, the indicator may consist of the color associated with the value of the measured consumption. In the case where the characteristic is the intensity of the source, the indicator may be constituted by a value of luminous intensity or a percentage of the maximum intensity of the light source.

According to an optional feature of the second embodiment, an association of the value with an indicator is controlled and a transmission of the indicator from the processing device to the source is commanded.

In a similar manner to the first embodiment, the allocation of an indicator makes it possible to carry out all the steps of determining the value within the processing device and to limit the quantity and type of data to be communicated to the source or to be treated by the latter. The invention also relates to a device comprising a light source capable of producing continuous light and means capable of modifying a characteristic of the light produced as a function of a consumption value of a resource by an installation of a user on a network supplying the resource. This device makes it possible to inform the user of his consumption in a user-friendly, playful and aesthetic manner. In addition, it fits into a set of traditional lighting sources.

The invention also relates to a system comprising: a light device as defined above, a consumption treatment device of the installation, - a telecommunication gateway, located at the user, connected to the light device and the processing device by a telecommunications network.

In addition, the subject of the invention is a computer program comprising instructions able to control the implementation of a method as defined above when it is executed by a computer. -AT-

Another object of the invention is a data recording medium comprising a program as defined above.

The subject of the invention is also a method in which a step of providing a program as defined above over a telecommunications network for downloading is carried out.

The invention will be better understood on reading the description which follows, given solely by way of nonlimiting example and with reference to the drawings in which: FIG. 1 is an overall diagram of a system according to a first embodiment of the invention; FIG. 2 is a flowchart illustrating various configuration steps of the method according to the invention of the system of FIG. 1; FIG. 3 is a flowchart illustrating various initialization steps of the method according to the first embodiment of the invention of the system of FIG. 1; Fig. 4 is a flowchart illustrating various data processing steps of the method according to the first embodiment of the invention by the system of Fig. 1; FIG. 5 is an overall diagram similar to that of FIG. 1 of a system according to a second embodiment of the invention; Figures 6 and 7 are flow charts illustrating different initialization steps of the method according to the second embodiment of the invention of the system of Figure 5; FIG. 8 is a flowchart illustrating various data processing steps of the method according to the second embodiment of the invention by the system of FIG. 6.

First embodiment

FIGS. 1 to 4 show a first embodiment of the system and method according to the invention.

The system, designated by the general reference 12, allows the processing of data relating to the consumption of a resource consumed by a facility 14 of a user. In this case, this resource is consumed directly from a network

16 supply of the resource. This network 16 is typically a regional network or many thousands of installations such as installation 14, or even more.

The resource is in this case an energy resource. But it could be a resource of another nature such as a fluid such as water. The network would be a network of running water. It could also be a telecommunication network, the resource being, for example, a connection or communication time or a quantity of data transiting over the network from the installation 14 or intended for it.

This installation 14 is in this case a dwelling. But it could be alternately professional premises such as offices or a factory.

In the present example, the electric current is the resource and is consumed by the installation 14 directly from the network 16. This resource is consumed by the various devices present in the installation 14, for example household appliances (lava - washing machine, dishwasher, television, computer, heaters, refrigerator, etc.).

The system 12 is distributed, on the one hand, to the user and, on the other hand, to a processing center 18, remote from the installation 14.

The portion of the system 12 located at the user's premises comprises a device 20 for consumptions of the installation 14, a telecommunication gateway 22 and a light device 24. The device 20, the gateway 22 and the device 24 are interconnected. by a local telecommunications network 26.

The device 20 comprises first, second and third modules 28, 30, 32. These modules each comprise conventional electronic means enabling them to have the operation indicated below and in particular a central unit, means of communication with the other elements. of the system, if necessary display means, etc.

The first module 28 comprises an electronic electricity meter 34 of the user and an electric transmitter 36 connected to a teleinformation port of the counter 34. This first module 28, known in itself, is able to periodically read on the meter. 34 consumption indices, an apparent power consumed by the installation 14 and a maximum exploitable power, called contract power. The second module 30 comprises a transmitter 38. This transmitter is able to communicate via a wireless link with the sensor 36 of the first module 28 to obtain the indexes raised by the latter. The transmitter 38 is connected, for example by means of a wired link, to the gateway 22 of the installation 14. The gateway 22 is in communication with a telecommunication network 40, in this case the Internet network. The gateway 22 is here of the ADSL type. In the absence of a high-speed link to the network 40, the method according to the invention can be implemented by means of a conventional telephone line. The second module 30 can thus transmit to the network 40 the index and power values apparent and subscribed obtained by the first module 28 on the counter 34.

The third module 32 comprises a display 42. The display 42 is formed by a housing 44 provided with a screen 46 and also able to communicate with the transmitter 38, for example by means of a wireless link. The display 42 may be manipulated and carried in the installation 14 by a user thereof. It allows this user to acquaint with data relating to the consumption of the installation on the electrical network. The light device 24 comprises a light source 48 capable of producing continuous light and means 50 able to modify a characteristic of the light produced as a function of an electrical consumption value by the installation 14. The light source 48 is covered with a sphere or translucent protective globe 51. In the present case, the modifiable characteristic is the color. Alternatively, the characteristic may be the intensity of the light.

The portion of the system 12 located in the processing center 18 is outside the facility 14 and typically at a great distance therefrom. When their mutual communication is made necessary, this communication is done in the present example via the telecommunication network 40.

The processing center 18 includes a device 52 for collecting and storing data.

The device 52 includes a computer 54 such as a server. We will refer to this server 54 as the "front-end server" in the present description. This server 54 is able to communicate with the installation 14 by means of the network 40. The role of this server

54 is in this case to collect and store the indexes and the apparent and subscribed powers it receives from the second module 30 and to associate a collection time reference, called timestamp, corresponding to the time at which the server 54 received the data. Recall that a time stamp or "timestamp" is computer time marker for the number of seconds since ^{January 1,} 1970 in this case a Unix timestamp. For example, the value 11971 16587 corresponds to the date of 08/12/2007 at 12 hours 23 minutes 07 seconds.

The device 52 also includes a database 56 for storing apparent and subscribed powers. The center 18 further comprises a data processing device 58 which is in this case a computer such as a server 60 also connected to the other elements of the system via the network 40. This server 60 has the function of collecting from the front-end server 54 to which it is connected the apparent and subscribed powers collected by the latter and to process them. The device 58 also includes a database 62 which records the apparent and subscribed powers collected by the server 60 from the server 54.

In addition, the center 18 includes a device 64 for determining a value of consumption of the resource by the installation 14 or power consumption rate. This value corresponds to the quotient of the apparent power on the subscribed power. In this case, this device 64 comprises a computer 66.

The center 18 finally comprises a communication server 68 connected to the network 40 and the device 64. The communication server 68 is in this case open-source type Jabber.

The light device 24 comprises physical interfaces. Thus, the device 24 comprises a multicolored light-emitting diode 70. The diode 70 indicates the state of operation and connection to the communication server 68.

The light device 24 further comprises a module 74 for connecting, in this case wirelessly, the device 24 to the telecommunication gateway 22. In addition, the device 24 comprises a push button 76 for starting the device 24 in point mode to wireless point which we will detail the process below.

The light device 24 also includes software interfaces. Thus, the device 24 includes an on-board Web server 78 for accessing a configuration interface of the device 24. The device 24 also comprises an embedded Jabber type client 80 for signaling the presence of the device 24 to the Jabber server 68 and receiving display messages from this server 68 via the gateway 22.

Databases 56 and 62 can be databases of any type and can be managed by any program. In this case, the databases are managed using the program known as "MySQL". The system 12 makes it possible to implement the method according to the invention of which we will now describe the main steps related to the invention.

First and with reference to FIG. 2, we will describe a series of configuration steps of the device 24. During these steps, an allocation to the source 48 of an identifier of the module 30 is commanded and a command is commanded. connection from source 48 to module 30.

At the first connection of the device 24, the user must configure communication parameters of the device 24 and the parameters of the transmitter 38. The parameters of the device 24 include the name of the network 26 to be joined, an encryption key of the network 26 to be reached as well as the type of encryption key. The communication parameters of the transmitter 38 comprise an identifier of the transmitter 38 and a password chosen by the user.

In order to allow the configuration of the device 24 by the user, in a first step 100, the device 24 is started in point-to-point or ad-hoc mode. To do this, the user presses the push button 76 after turning on the device 24. Then, during a step 102, the diode 70 illuminates in a predefined color, for example in blue, associated with the point-to-point configuration mode.

In a third step 104, the user connects a computer 105 to the device 24 in point-to-point mode. Then, during a step 106, the user informs, via the computer 105, the embedded Web server 78 of the device 24. In this case, the user enters fields 107a-e relating respectively to the name of the network 26 to join, here DOMESTIK, to an encryption key of the network 26 to join, here 123OK789, the type of key, here WEP, an identifier of the transmitter 38, here 4923J, and a password chosen by the user, here MDP123 . During a fifth step 108, the user validates the information of the fields

107a-e which causes a restart of the device 24 in a nominal mode.

During a restart step 110, the device 24 connects to the network 26, in this case to the gateway 22.

Finally, in a last step 1 12, the diode 70 illuminates in a predefined color, for example in green, associated with a connected state of the device 24 to the server 68.

With reference to FIG. 3, we will describe a series of initialization steps of the system 12 following the configuration steps 100 to 110. These steps constitute steps of announcing the presence of the device 24 to the communication server 68. During a first step 200, the device 24 is started, for example by turning it on.

At a later step 202, the client Jabber 80 of the device 24 is called with parameters such as the name of the Jabber server, the port of the Jabber server, a name of the device 24, the password chosen by the user and the state connected or not of the device 24. The name of the device 24 is formed by the concatenation of the identifier of the transmitter 38 and @ poweglobe.net, here 4923J@poweglobe.net. The name of the device 24 also forms its address.

In a subsequent step 204, the device 24 is connected via its Jabber client 80 to the Jabber server 68. If the connection to the communication server 68 is impossible, the device 24 abandons the execution of this step for this client, issues an alarm according to the error procedures and reconnects to a step 205.

During a step 206, the device 24 is put on standby. The device 24 is then ready to receive messages from the communication server 68. If this standby step fails, the device 24 abandons the execution of this step for this client and issues an alarm according to the error procedures in a step 207.

Now and with reference to FIG. 1, we will describe a series of data processing steps by the system 12.

The first module 28 reads an instantaneous value of data relating to the consumption, in this case of the index as well as the powers apparent and subscribed on the electronic counter 34. The module 28 sends these data to the second module 30, in the species every ten minutes. This period could more generally be between one minute and two hours.

The second module 30 stores the apparent and subscribed indexes and powers thus collected and groups them together to send them to the server 54 via the gateway 22. It is then ordered to send data from the module 30 to the server 54 of the center 18 via the gateway 22. In the present example, the transmission by the module 30 to the server 54 is at a predetermined connection frequency Fc. In the case in point, this frequency Fc is equivalent to a period of three hours, but it could be expected that it be done with a period of less than one hour, and for example of the order of a few minutes, or with a longer period, for example ten or fifteen hours. However, it is advantageous if this period is as short as possible. The server 54 processes the received data in two different ways depending on their nature. The indexes are stored in linearized flat files 82 and are historized according to their collection timestamp by the server 54. The apparent and subscribed powers are stored in the base 56 and are not historized. At a predetermined frequency, in this case every night, the server 54 records the newly obtained indexes with those already available since the last twenty-four hours in a flat file 84. The indexes prior to this period are overwritten. This flat file 84 is accessible to the processing device 58. Only the last value of the apparent and subscribed power is accessible to the processing device 58. We will now describe the steps implemented by the processing server 60 with reference to FIGS. and 4. During these steps, the user is informed of his power consumption by changing the color of the light produced by the source 48 as a function of the value of the power consumption of the installation 14 In a first step 300 , the server 60 connects to the database 56.

If the connection proves impossible to establish, the server 60 abandons the execution of this step and issues an alarm according to predetermined procedures relating to an error situation in the system in a step 301.

If the connection could take place, it goes on to a later step 302. During this, the server 60 obtains from the database 56 a list 86 of customers having subscribed to one of the services associated with the method. For each client of the list 86, the front-end server 60 obtains from the flat file 82 the last collection timestamp TC1, here 1191932700. This timestamp TC1 is associated with the identifier ID of the transmitter 38, here 4923J and at an address AD of the device 24, here 4923 _ι j _ι @ _ι βoweogj _ιι obe.net. The following steps each time relate to a particular customer. These steps are executed for this client, and then the process starts again for the next client in list 86.

During a step 304, the processing server 60 consults on the front-end server

54 the database 56 and obtains the apparent powers PA and subscribed PS associated with a collection timestamp TC2, in this case 1191933300, here respectively having values 970 and 6000. If the connection to the front-end server is impossible or if the file is not found, the server 20 abandons the execution of this step for this client and issues an alarm according to the error procedures in a step 305.

In a subsequent step 306, a determination is made of the power consumption rate TX by the installation 14. In this case, the computer 66 calculates the ratio of the apparent power PA to the subscribed power PS. During this same step, the calculated TX power ratio is associated with an IN indicator, in this case a color. In this case, for TX rates between 0 and 25%, we associate the color green, for rates between 26 and 75%, we associate the color orange and for rates between 76 and 100%, we associate the Red color. In the example shown, the ratio is 16.2%. The associated color is green. Then, during a step 308, it controls the transmission of the color to the device 24. In this case, the server 64 transmits to the communication server 68, the color to communicate to the device 24. The server 68 transmits an Instant Messaging event message to the address of the device 24 via the network 40 and the gateway 22. In this case, the server 68 transmits the green color to the address AD 4923J @ goweoglgbejtgt corresponding to the device 24. If the device 24 having the destination AD address is not connected, the server 68 abandons the execution of this step for this client and issues an alarm according to the error procedures in a step 309.

In a subsequent step 310, the server 60 stores the collection timestamp TC2, the identifier ID of the transmitter 38, the address AD of the device 24, the apparent powers PA and subscribed PS, the apparent power ratio TX as well as the color IN associated therein in the database 62. This step 310 takes place only if the collection timestamp TC2 is greater than the last timestamp recorded in the base 62. If the execution of this step fails, the server 60 abandons the execution of this step for this client and issues an alarm according to the error procedures in a step 311.

Finally, during a step 312, the server 60 passes to the next identifier in the list 86 and repeats steps 304 to 312 until the identifiers of the list 86 are exhausted.

On receipt of the event message by the gateway 22 sent by the server 68 via the network 40, it is sent directly to the device 24. The message containing the color, here green, changes the color of the light produced by the source 48 In this case, the means 50 controls the modification of the color. Alternatively, other characteristics of light such as intensity can be modified. In this case, during step 306, a different light intensity is associated according to the determined apparent power level.

Concerning the steps 300 to 312 illustrated in FIG. 4, they are executed for all the clients of the list 86 at an execution frequency Fe. This frequency is adapted to the connection frequency Fc in order to always record the values of the powers apparent and subscribed before they are overwritten by more recent values. In this case, the frequency of execution Fe is twice the frequency of Fc connection. It is again advantageous that the period equivalent to the Fe frequency is as short as possible.

Second embodiment

FIGS. 5 to 8 show a second embodiment of the system and method according to the invention. In these figures, elements similar to those of Figures 1 to 4 are designated by identical references.

In this second embodiment, the processing center 18 is reduced to a communication server 88 as well as a database 90. The communication server 88 is used here mainly as a backup in the case where the communication via the Local network 26 between the device 24 and the transmitter 38 fails.

The configuration steps of the device 24 are identical to the steps 100 to 12 except step 1 in which the device 24 also connects to the transmitter 38 in addition to the gateway 22.

We will describe a series of initialization steps of the system 12 following the configuration steps 100 to 110.

The steps of announcing the presence of the device 24 to the communication server 88 are similar to the steps 200 to 206 of announcing the presence of the device 24 to the communication server 68 of the first embodiment.

Unlike the first embodiment, the initialization of the system 12 also comprises steps of announcing the presence of the device 24 to the transmitter 38. These steps are described in FIG. 6. In a first step 400, starts the device 24 for example by turning it on. The device 24 must then announce its presence to a presence server whose IP address (Internet Protocol or Internet Protocol) it does not know.

Thus, in a subsequent step 402, the device 24 sends a UDP message (User

Datagram Protocol or User Datagram Protocol) signaling its presence to all the receivers of the local network 26, ie in broadcast mode, on the local network 26. This signaling message contains in particular the IP and MAC addresses of the device 24 .

The initialization of the device 24 comprises a subsequent step 404, detailed in Figure 7. In a first step 500, the transmitter 38 listens to the local network 26 on a port of presence. Then, in a step 502, the transmitter 38 receives the UDP presence signaling message from the device 24. Thus, the transmitter 38 detects that the device 24 announces his presence. In a subsequent step 504, the transmitter reads and stores in memory the IP and MAC addresses of the device 24 in an address list. The advantage of having the MAC addresses is to allow several devices 24 to be used with the same transmitter 38. Finally, in a step 506, the transmitter 38 then sends a UDP confirmation message to the device 24. If the message confirmation fails, the device 24 aborts the execution of this step and issues an alarm according to the error procedures in a step 507.

Returning to FIG. 6, during a step 406, the transmitter 38 waits for the UDP confirmation message from the transmitter 38. If the detection of the device 24 by the transmitter 38 fails, the device 24 abandons the execution of this step retransmits a UDP packet to LAN 26 and issues an alarm according to the error procedures in a step 407.

Finally, during a step 408, the device 24 is placed on standby. The device 24 is then ready to receive messages from the transmitter 38 or from the gateway 22. If this standby fails, the device 24 abandons the device. perform this step and issue an alarm according to the error procedures in a step 409.

Now and with reference to FIG. 8, we will describe a series of operating steps of the system 12.

In a first step 500, the first module 28 reads an instantaneous value of the apparent power PA and subscribed PS on the electronic counter 34 and sends it to the second module 30, in this case every ten minutes. This period could more generally be between one minute and two hours. In a second step 502, the second module 30 stores and then reads the apparent powers PA and subscribed PS collected, respectively here having values 970 and 6000. The second module 30 associates with these powers PA, PS a collection timestamp TC2 by the second module 30, in this case 1191933300. If the reading of the powers PA, PS proves impossible to perform, the second module 30 abandons the execution of this step and issues an alarm according to the error procedures in a step 503.

During a step 504, a determination is made of the TX power rate consumed by the installation by means of the device 38 and the determined TX power ratio is assigned a color similarly to the first embodiment. Then, during a step 506, the second module 30 reads, for the last timestamp TC2 received, the IP address and the service port PT of the device 24 in the list. Address. In the example illustrated, the IP address is 192.168.1.34 and the port PT 1567. If the reading of the IP address or PT port is impossible to perform, the second module 30 abandons the execution of this step and emits an alarm according to the error procedures in a step 507. Finally, in a step 508, the color is sent from the device 38 to the device 24. In this case, the device 38 sends an instant messaging event message to the IP address of the device 24. If the connection corresponding to the IP address and the PT port is impossible to perform, the second module 30 abandons the execution of this step and issues a alarm in accordance with the error procedures in a step 509. The message containing the color, green here, modifies a characteristic of the light produced in a manner similar to that of the first embodiment.

Then the second module 30 repeats these steps for another device 24 of the user in the case where the user has several devices 24 or else goes on standby before repeating these steps on receipt of new power values apparent and subscribed .

The implementation of the information process will be able to be controlled through instructions from computer programs when these programs are run on a computer. These programs are stored in the memories of the various elements of the system 12 and implemented by the respective central units thereof. It will be possible to record each program on a data recording medium such as a flash memory device or a CD or DVD type disc. Finally, it will be possible to make such a program available for download via the Internet for example. Updates of the program can thus be sent by this network to the various elements of the system 12.

Claims

An information method, characterized by controlling information of a user of a network (16) for providing a resource by modifying a characteristic of a light continuously produced by a source (48) according to a consumption value of the resource by an installation (14) of the user. The method of claim 1, wherein the feature is selected from a color and intensity of light. A method as claimed in any one of the preceding claims, wherein a consumption data request is sent from a consumer facility processing device (14) located at the user's premises. , to a telecommunication gateway (22) located at the user's premises. 4. Method according to the preceding claim, wherein it controls an allocation to the source (48) of an identifier of the processing device (38). 5. Method according to the preceding claim, wherein, a connection is controlled from the source (48) to the processing device (38). 6. Method according to any one of claims 3 to 5, wherein it controls a transmission of data from the telecommunication gateway (22) to a processing center (18) remote from the installation (14), and controlling a value determination by means of the processing center (18). 7. A method according to any one of claims 3 to 5, wherein a determination of the value is controlled by means of the processing device (38). The method of claim 6, wherein controlling a combination of the value with an indicator and controlling a transmission of the indicator from the processing center (38) to the source (48). The method of claim 7, wherein controlling an association of the value with an indicator and controlling a transmission of the indicator from the processing device (38) to the source (48). 10. Device (24) for information, characterized in that it comprises a light source (48) capable of producing continuous light and means (50) capable of modifying a characteristic of the light produced as a function of a consumption value of a resource by an installation (14) of a user on a network (16) for providing the resource. 1 1. System (12) for information, characterized in that it comprises: - a light device (24) according to claim 10, a device (38) for processing the consumption of the installation, - A telecommunications gateway (22), located at the user, connected to the light device (24) and the processing device (38) by a telecommunications network (26). 12. A computer program comprising instructions adapted to control the implementation of a method according to any one of claims 1 to 9 when executed by a computer. 13. Data recording medium comprising a program according to the preceding claim. 14. A method of provision, characterized in that it performs a step of providing a program according to claim 12 on a telecommunications network for download.