METHOD FOR CONFIGURING AN ELECTRONIC DEVICE USING A CONTROL TOOL AND ASSOCIATED SYSTEM

Abstract

METHOD FOR CONFIGURING AN ELECTRONIC DEVICE BY MEANS OF A CONTROL TOOL AND ASSOCIATED SYSTEM. One aspect of the invention relates to a method for configuring an electronic device (10) by means of a control tool (12), the method comprising: the determination, by the electronic device, of visual information such as a color or a number associated with the electronic device; the selection, by the control tool, of the visual information from a list of visual information and the determination of a communication address from the selected information; the sending, by the control tool, of a command (7) comprising the determined communication address; the execution of the command by the electronic device when said command includes the determined communication address. Figure to be published with the abstract: Figure 2

Description

Title of the invention: METHOD FOR CONFIGURING AN ELECTRONIC DEVICE BY MEANS OF A CONTROL TOOL AND ASSOCIATED SYSTEM TECHNICAL FIELD OF THE INVENTION

[0001] The technical field of the invention is that of configuring at least one electronic device by means of a wireless control tool. TECHNOLOGICAL BACKGROUND OF THE INVENTION

[0002] The commissioning of certain electronic devices, such as building lighting, may require a configuration step to customize the functionalities of each device according to user expectations. When these devices are inaccessible, for example, when they are suspended from a ceiling, their configuration can be carried out using a wireless configuration tool. This tool then allows configuration instructions to be sent to the various devices via wireless communication. Infrared communication is commonly used to configure lighting devices once they are already installed on a ceiling. It is economical and offers long ranges. It also allows for unidirectional or bidirectional communication.

[0003] Infrared communication generally relies on universal addressing of devices. While this addressing method works correctly for configuring a single electronic device, it presents problems when it is necessary to configure several electronic devices.

[0004] Figure 1 schematically illustrates an example of controlling two electronic devices 2 with a single control tool 5. Each device 2 includes an infrared receiver 3. The electronic devices 2 are mounted on a ceiling 4 and positioned close to each other. The control tool includes an infrared emitter 6. The user 1, being too far from both devices 2 and pointing the control tool 5 at one of the two electronic devices 2, cannot prevent the transmission of an infrared frame 7 to both devices 2 simultaneously. A command intended for only one of the two devices 2 will therefore also be executed by the other.

[0005] Furthermore, when a response is expected in the form of an infrared frame 8 from the targeted device 2, all nearby devices 2 can also send an infrared frame 8 scrambling the initial frame.

[0006] There is therefore a need to be able to carry out infrared communication with a single electronic device among a plurality of devices, the implementation of this communication being simple to implement.

[0007] Document US2012268365A1 describes a lighting system comprising lights controlled by a control device for which communication between the control device and each light is achieved by means of an internet network, a mobile communication network or a local network.

[0008] Document EP3022993A1 describes a lighting system comprising lights and a lighting control device for which communication between the control device and each light is achieved by means of wired communication or radio frequency (RF) wireless communication using, for example, the Zigbee(TM), EnOcean(TM), Bluetooth® and Wi-Fi(TM) protocols.

[0009] Document EP3549408A1 describes a color control system for one or more lights. Communication between the control device and the lights is achieved via a wired connection.

[0010] Document US2021173667 describes a configuration tool connected to an electronic device, the configuration tool enabling the establishment of wireless peer-to-peer communication. Summary of the invention

[0011] The invention relates to a method for executing a command sent to an electronic device, the method being implemented by the electronic device, the method comprising: • the determination of a communication address for the electronic device based on predefined visual information; • the reception, by means of a wireless receiver of the electronic device, of the command; • the execution of the order when said order includes the determined communication address.

[0012] Thus, when an electronic device receives a command (for example, by means of an infrared or radio frequency signal), it can determine whether its associated communication address is included in the command. An associated address is understood to be the communication address based on visual information. When it is included, it can execute the received command. Otherwise, it ignores the command. The use of a specific address associated with the electronic device ensures that the latter does not execute any command sent to another device (for example, one associated with different visual information). Thus, when several electronic devices according to the invention are placed in the field From the same wireless transmitter, commands received by all devices are executed only by those devices associated with the correct communication address, that is, those associated with the correct visual information. The other devices ignore the received commands.

[0013] It is thus easy to specifically control a single electronic device among a plurality of devices, provided that the control includes the communication address associated with its visual information (and that this information, among the plurality of devices, is unique).

[0014] It is also easy to order a subset of electronic devices from a plurality of devices, provided that the devices in this subset are associated with the same visual information (and that this information is different from the visual information of the other devices).

[0015] Visual information is understood to mean information that a user is able to interpret visually. For example, predefined visual information is a predefined color or a predefined number.

[0016] Advantageously, the method includes, before determining the communication address, defining the predefined visual information. In this way, devices with identical identifiers (e.g., serial numbers) can still be configured independently. Furthermore, the devices do not need to be pre-configured at the factory by being assigned a fixed identifier.

[0017] Preferably, the definition of the predefined visual information is carried out randomly. This is the simplest solution to implement for associating a unique piece of information with each electronic device in a plurality of devices, particularly when the number of devices is small and the number of associatable pieces of information is sufficiently large.

[0018] Advantageously, the method includes, after defining the predefined visual information, displaying said predefined visual information. In this way, the predefined information associated with the device can be communicated to a user so that the latter can select the correct device to order. Preferably, the display is achieved by means of a luminous display module.

[0019] Advantageously, the definition of the predefined visual information is triggered by receiving a command to reset the predefined visual information, including a universal communication address. Thus, each device can redefine the predefined visual information to which it is associated. The use of a universal communication address makes it possible to trigger the reset of the visual information without it being necessary to use the address specific to each device. Thus, the command can be sent to a plurality of devices without systematically scanning all possible addresses.

[0020] Alternatively, the definition of the predefined visual information is triggered by the power-up of the electronic device.

[0021] Advantageously, the method includes, after or during the execution of the command, sending feedback related to the execution of the command by means of a wireless transmitter of the electronic device. Thus, the device can communicate a result relating to the execution of the command, or that it has correctly received the command, or that it has completed the execution of the command and is able to execute subsequent commands.

[0022] Advantageously, the electronic devices include a lighting device, a motion detector or a safety unit (i.e. an emergency lighting unit that can be switched on in the event of a power outage).

[0023] The invention relates to a method for sending a command to an electronic device, the method being implemented by a control tool, the method comprising: • the selection, by means of a human-machine interface of the control tool, of a visual information in a list of visual information; • determining a communication address from the selected visual information; and • the sending, by means of a wireless transmitter of the control tool, of a command including the determined communication address.

[0024] The control tool thus makes it possible to send a command which can be executed by an electronic device associated with the selected visual information.

[0025] Selecting visual information enables point-to-point communication between the control tool and the electronic device(s) associated with that visual information. Point-to-point communication refers to communication carried out without an intermediary between a sender and a receiver, using a direct addressing principle. When several electronic devices are associated with the same information (and therefore the same address), several point-to-point communications can be performed in parallel.

[0026] The use of a human-machine interface allows a user to select a device (or set of devices) through its visual information. In a practical case, the user can observe visual information such as a color displayed by a multicolor display of an electronic device to select that color in the human-machine interface. Using one color rather than another piece of data to designate a device presents certain Additional advantages. For example, when the user is too far from the electronic device (e.g., when it is ceiling-mounted) to clearly read the device identifier (such as the serial number), they can still distinguish the color associated with the device and emitted by a light display. Using a color rather than audible feedback allows the correct device to be selected, even in noisy environments. In another variation, the visual information is a digit that can be displayed on a seven-segment display. Using a digit also offers the aforementioned advantages. Displaying a digit rather than a number limits the number of possible combinations, thus making it easier to distinguish and interpret, and reducing the risk of selecting the wrong device.

[0027] Advantageously, the method includes, before the selection of the visual information, sending, by means of a wireless transmitter, a command to reset the visual information comprising a universal communication address. Thus, the device(s) can perform the reset of their visual information without it being necessary to use the specific address of each device.

[0028] Advantageously, the method includes receiving, by means of a wireless receiver of the control tool, feedback relating to the execution of the command.

[0029] In this way, the control tool can be informed of a value relating to the execution of the command (for example, a set light intensity). It can also be informed of the successful execution of the command so that it can send further commands.

[0030] Advantageously, the method also includes, before sending the command: • selecting a parameter using the human-machine interface of the control tool; and • the inclusion of the selected parameter in the command to be sent.

[0031] The invention also relates to a method for configuring an electronic device using a control tool, the method comprising: • the determination, by the electronic device, of a communication address of the electronic device based on a predefined visual information of the electronic device; • the selection, by means of a human-machine interface of the control tool, of a visual information in a list of visual information; • the determination, by the command tool, of a communication address from the selected visual information; • sending, by means of a wireless transmitter of the control tool, a command including the determined communication address; • the reception, by means of a wireless receiver of the electronic device, of the command including the specified communication address; and • the execution of the command by the electronic device when said command includes the determined communication address.

[0032] The invention further relates to an electronic device comprising a wireless receiver and means configured to carry out the steps of the method of executing a command according to the invention.

[0033] Advantageously, the wireless receiver is an infrared receiver or a radio frequency wave receiver in a frequency band of 2.4 GHz. In the latter case, this is the frequency band that can be used by the Bluetooth® communication protocol.

[0034] The invention also relates to a control tool comprising a wireless transmitter, a human-machine interface and means configured to carry out the method of sending a command according to the invention.

[0035] The wireless transmitter is advantageously an infrared transmitter or a radio frequency wave transmitter in a frequency band of 2.4 GHz.

[0036] The invention also relates to a system comprising: • at least one electronic device according to the invention; and • a control tool according to the invention.

[0037] Advantageously, the system comprises a plurality of electronic devices according to the invention.

[0038] The invention and its various applications will be better understood by reading the following description and examining the accompanying figures. BRIEF DESCRIPTION OF THE FIGURES

[0039] The figures are shown for illustrative purposes only and are not intended to limit the invention. Unless otherwise specified, the same element appearing in different figures has a unique reference numeral.

[0040] [Fig. 1], already described, schematically presents an example of a configuration of two electronic devices according to the prior art by means of a control tool according to the prior art.

[0041] [Fig.2] schematically presents a first embodiment of a system according to the invention comprising an electronic device according to the invention and a control tool according to the invention.

[0042] [Fig.3] schematically presents a method of implementing a process execution of a command according to the invention which can be implemented by the electronic device of [Fig.2].

[0043] [Fig.4] schematically presents a method of implementing a sending process of a control according to the invention which can be implemented by the control tool of the [Fig.2].

[0044] [Fig.5] schematically presents a second embodiment of a system according to the invention comprising in particular two electronic devices according to the invention. DETAILED DESCRIPTION

[0045] Figure 2 schematically presents a first embodiment of a system 19 for configuring an electronic device 10 by means of a control tool 12. The system 19 further comprises a control tool 12 and an electronic device 10. The control tool 12 is, among other things, used to send a command 28, for example a configuration command, to the device 10.

[0046] The device 10 is configurable, meaning that at least one of its functions can be set. For example, when the device 10 is a lighting device, the functions may include adjusting the light intensity, the time before switching off, or programming automatic activation based on the days of the week. When it is a motion detector, the functions may include the trigger level or programming based on the days of the week.

[0047] The device 10 includes a wireless receiver 3. This is in this case an infrared receiver, such as those found on prior art electronic devices (for example, in [Fig. 1]). The device 10 according to the invention can thus receive a first infrared frame 7. This first frame 7 is used, in particular, to carry a command 28 (indicated in parentheses in [Fig. 2]). In one embodiment, the wireless receiver 3 can be configured to communicate using the Bluetooth® protocol.

[0048] In the embodiment of [Fig.2], the device 10 includes a wireless transmitter 15 and in this case an infrared transmitter 15. The device 10 can thus send a second infrared frame 8. This second frame 8 can be used to carry feedback 29 (indicated in parentheses in [Fig.2]) on the execution of a command 28. Alternatively, the wireless transmitter / receiver 15 can also be configured to communicate with the Bluetooth® protocol.

[0049] In the embodiment of [Fig. 2], the device 10 also includes a display for displaying visual information. In this case, it is a polychromatic display 11, also called a "multicolored" display. Polychromatic or multicolored means a display capable of displaying several different colors, sequentially or simultaneously. It is, by An example of a polychromatic (RGB) light-emitting diode (LED). It can also consist of multiple LEDs of different colors. For example, there might be five LEDs in white, yellow, green, blue, or magenta.

[0050] In one embodiment, the device 10 may include a display configured to display a digit, such as a seven-segment LED display. The display may, for example, show the digits from 0 to 9.

[0051] The example in [Fig. 2] describes the implementation of a color as visual information. However, the principles described below are directly applicable to a number as visual information.

[0052] Several devices 10 can present rigorously the same multicoloured displays 11. It is the activation of LEDs of different colours (or the selection of a colour of an RGB LED) which makes it possible to differentiate the devices 10 or subsets of devices 10 (when these are associated with the same colour).

[0053] The device 10 further includes a memory 16 capable of storing parameters of the device 10, such as a light intensity or a color (or a number) to which the device 10 is associated.

[0054] The device 10 also includes means 14 for implementing the infrared receiver 3, the infrared emitter 15, the multicolor display 11, and the memory 16. These means 14 include, for example, a controller, a calculator, an embedded computer, or an electronic circuit. For the sake of simplicity, these means will be considered to include a controller 14. The controller 14 is specifically configured to implement the aforementioned elements according to the execution method shown in [Fig. 3].

[0055] The control tool 12 includes an infrared emitter 6, such as those found on prior art control tools (for example, of [Fig. 1]). It can thus send a command 28 to the device 10 by means of an infrared frame 7.

[0056] The control tool 12 illustrated in [Fig.2] also includes an infrared receiver 18. It can thus receive feedback 29 from the device 10.

[0057] The control tool 12 further includes a human-machine interface 13 for interacting with a user 1. The human-machine interface 13 can be a keyboard associated with a list of visual information (such as colors or numbers) or a multicolor or monochrome touchscreen. The human-machine interface 13 thus allows the user 1 to select a visual piece of information (a color or a number) from a list of visual information (in this case, a list of colors or numbers) or to select a parameter to be sent to the device 10.

[0058] The control tool 12 also includes means 17 configured to implement the infrared transmitter 6, the infrared receiver 18, and the human-machine interface 13. The means 17 of the control tool 12 may, like the device 10, include a controller, a calculator, an embedded computer, or an electronic circuit. For the sake of simplicity, these means 17 will be considered to include a controller 17. The controller 17 of the control tool 12 is specifically configured to implement the aforementioned elements according to the method of sending a command from [Fig. 4].

[0059] Figures 3 and 4 schematically represent: • a method for executing a command 28, which can be implemented by the device 10 of [Fig.2]; and • a method for sending such an order 28, which can be implemented by the ordering tool 12

[0060] These two methods, which can be grouped under a single method for configuring an electronic device 10 by means of a control tool 12, allow the control tool 12 to send a command 28 to the device 10 such that the latter executes said command 28 only when a particular condition is met. This condition is, in this case, the use of a valid communication address to communicate with the device 10. This amounts to implementing point-to-point communication between the control tool 12 and the device 10.

[0061] The two processes in Figures 3 and 4 will now be described jointly, considering colors as visual information. Alternatively, the visual information could be numbers.

[0062] The device 10 can be associated with a predefined color. By "associated with a color," it is meant that the device 10 stores, for example in its memory 16, information related to a color. It is advantageously understood that the device 10 is also capable of displaying the predefined color, for example by means of the multicolor display 11.

[0063] For example, in a very simple embodiment, the device 10, associated with a predefined color, may have an element of that color on one of its faces. This could be, for example, a label or sticker of that color, affixed to the casing of the device 10. The color and its association with that color are, for example, predefined at the factory during the manufacture of the device 10. The color may be based on an identifier of the device 10, such as a serial number or a model number.

[0064] However, it is advantageous that the device 10 be able to be associated with different colors and that it be able to present the color to which it is associated to a user 1.

[0065] The execution method implemented by the device 10 may initially include a step 21 for defining the predefined color. This step may be performed when the device 10 is powered on. The color may be defined based on an identifier of the device 10, such as hardware data relating to the device 10, for example, a serial number or a model number. The color may also have been previously defined and stored in the memory 16 of the device 10.

[0066] The color can also be defined randomly. The memory 16 of the device 10 stores, for example, a lookup table between integers and a list of colors that can be associated with the device 10 (in other words, the list of colors that can be displayed by the display 11 of the device 10).

[0067] A random draw of an integer thus makes it possible to determine, thanks to said correspondence table, the color associated with device 10.

[0068] In the embodiment of [Fig.3], the execution method provides that the color defined in the previous step is displayed 22. The display 22 is for example achieved by means of the multicolor display 11. The controller 14 activates for example one of the LEDs of the display 11 or activates the color defined on the RGB LED.

[0069] It allows the user to see the color associated with device 10. When there are several devices 10, the user 1 is able to determine the colors associated with each device 10.

[0070] Randomly defining the colors allows for the simple distribution of different colors among devices 10 that do not exchange any data with each other. The risk that at least two devices 10 will display the same colors depends on the number of devices 10 and the number of accessible colors.

[0071] In order for user 1 to select the device 10 to be ordered, the command sending method 28 includes a step 31 of selecting a color from a list of colors. The color list includes, for example, all the colors accessible to the device 10. The user can then select the color displayed 22 by the device 10. This selection 31 is preferably carried out using the human-machine interface 13 of the control tool 12.

[0072] The method for sending the command 28 then provides for a step of determining 32 a communication address in order to communicate with the device 10 associated with the color selected by the user 1. For this purpose, the method provides that the communication address is determined from the selected color.

[0073] The determination of the communication address may depend on the communication protocol used between the control tool 12 and the electronic device 10. This protocol can include a field dedicated to a communication address, also called an "address field." For example, the protocol can specify that a command may include an address field coded on one or more bytes. The address field thus allows for the storage of color information (called a "color code") related to the device.

[0074] In a practical case, based on five different colors, the following correspondence table can be drawn up: Color code: 1 white, 2 yellow, 3 green, 4 blue, 5 magenta

[0075] The controller 17 of the control tool can then determine the communication address by following the above example.

[0076] The method in [Fig. 4] involves sending command 28 to device 10 (or to the various devices 10 when there are several). Command 28 is intended to include the communication address previously determined. For this purpose, the communication address can be inserted into the addressing field of the protocol detailed above and provided for this purpose.

[0077] The command 28 is then sent 33 in the form of an infrared frame 7 by means of the infrared emitter 6 of the control tool 10. The infrared frame 7 is emitted at a solid angle which can encompass several devices 10.

[0078] The process in [Fig. 2] provides for a step 23 in the device 10 for determining a communication address based on the color to which it is associated. Advantageously, the determination 23 of the address uses the same method as that used by the control tool 10. This is, for example, the application of the communication protocol detailed above.

[0079] Upon receiving an infrared frame 7 24 by the infrared receiver 3 of the device 10, the controller 14 of the device 10 can interpret said frame 7 and determine the associated command 28.

[0080] The execution method provides that the controller 14 performs a comparison of the communication address stored in the received command 28 with the previously determined communication address. In other words, the controller 14 of the device 10 compares the color information encoded in the two addresses. When this color information is identical, command 28 is correctly addressed to device 10. Therefore, device 10 can execute 25 this command 28.

[0081] When this color information is identical, the received command 28 is intended for device 10. Device 10 can then execute this command 28 (and for example change the light intensity of device 10).

[0082] On the other hand, when the color information does not match, the received command 7 is not intended for device 10 and is ignored.

[0083] In this way, only the commands 28 destined for the device 10 correspond to the color selected on the human-machine interface 13 are executed by said device 10.

[0084] The method of [Fig.4] can also include a step of selecting a parameter by means of the human-machine interface 13 of the control tool 12. This parameter can then be used for the execution of the command by the device 10. The parameter is for example included in the command 28 sent 33.

[0085] When several devices 10 display the same color 22, and the user 1 wishes to control only one of these devices, they can request a color reset for all the devices 10. To do this, the method in [Fig. 4] involves sending a color reset command 27 to the various devices 10. In order for all the devices 10 targeted by the control tool 12 to perform this reset, the method provides that this command 27 is sent using a broadcast principle. In other words, the devices 10 are expected to execute this reset command even when this command 27 is not sent with the specific address of each device 10.

[0086] The method specifically provides that the reset command 27 includes a universal communication address. By universal, it is meant that all devices 10 are able to execute it.

[0087] The universal communication address can be a reserved address in the field of accessible addresses. Using the example relating to the correspondence table above, the universal address is, for example, associated with the integer 0.

[0088] The sending step 30 of the reset command 27 is preferably carried out before the selection 31 of the color in the human-machine interface 13 by the user 1.

[0089] Thus, the method of [Fig. 3] further provides that upon receiving a command, each device 10 determines whether the address stored in the command is an address linked to its particular color or whether the address is a universal address. When it is the latter, the device 10 executes the command associated with that universal address.

[0090] In particular, when the command is a reset command 27, each device 10 triggers 20 the step of determining its color 21 as described previously.

[0091] After the execution of a command 27, 28 by the device 10, whether it is a configuration command 28 or a reset command 27, the method of [Fig. 3] may provide that the device 10 sends 26 a return 29 relating to this execution to the control tool 12. The return 29 may take the form of a parameter or data resulting from the execution of the command 28. It may also be a generic return indicating that the execution of the command 28 is complete and that the device 10 is waiting for a new command 27, 28.

[0092] The return transmission 29 can be carried out in the form of an infrared frame 8 emitted by means of the infrared transmitter 15 of the device 10.

[0093] Symmetrically, the process of [Fig.4] may include a return receipt step 34. The receipt of this return 29 may allow the control tool 12 to send 33 a new command 28.

[0094] Figure 5 shows a second embodiment of the system 19 according to the invention. Unlike the system 19 of Figure 2, this system comprises two electronic devices 10. In this example, these are lighting devices fixed to a ceiling 4. The devices 10 can also be motion detectors or safety blocks. In the illustrated example, they are arranged close to each other, for example, less than 5 m apart, or even less than 1 m apart.

[0095] The devices 10 display the visual information associated with them (in this case, a color) on their respective displays 11 (in this example, different colors). User 1 observes the colors associated with the different devices 10 and selects one of the colors in the human-machine interface 13 of the control tool 12. In this way, the command 28 sent by the control tool 12 simultaneously to both devices 10 will only be executed by one of the two devices 10, the one corresponding to the color selected by user 1.

Claims

Demands

1. A method for executing a command (28) sent to an electronic device (10), the method being implemented by the electronic device (10), the method comprising: - determining (23) a communication address of the electronic device (10) based on predefined visual information; - receiving (24), by means of a wireless receiver (3) of the electronic device (10), the command (28); - executing (25) the command (28) when said command (28) includes the determined communication address, and the method being characterized in that, the method further comprises, after or during the execution (25) of the command (28), sending (26), by means of a wireless transmitter (15) of the electronic device (10), a return (29) relating to the execution of the command (28).

2. A method of execution according to the preceding claim, wherein the predefined visual information is a predefined color or a predefined number.

3. A method of execution according to any one of the preceding claims, comprising, prior to the determination (23) of the communication address, the definition (21) of the predefined visual information.

4. A method of execution according to the preceding claim, wherein the definition (21) of the predefined visual information is carried out in a random manner.

5. A method of execution according to any one of claims 3 or 4, comprising, after the definition (21) of the predefined visual information, the display (22) of said predefined visual information.

6. A method of execution according to any one of claims 3 to 5, wherein the definition (21) of the predefined visual information is triggered by the reception (20) of a reset command (27) of the predefined visual information comprising a universal communication address.

7. A method of execution according to any one of claims 3 to 5, wherein the definition (21) of the predefined visual information is triggered by the power-up of the electronic device (10).

8. Method of sending a command (28) to an electronic device (10), the method being implemented by a control tool (12), the method comprising: - the selection (31), by means of a human-machine interface (13) of the control tool (12), of a visual information from a list of visual information; - the determination (32) of a communication address from the selected visual information; and - the sending (33), by means of a wireless transmitter (6) of the control tool (12), of a command (28) comprising the determined communication address, and the method being characterized in that it further comprises a reception (34) of a return (29) relating to the execution of a previous command (28) authorizing the sending (33) of the command (28).

9. Method of sending a command according to the preceding claim, comprising, before the selection (31) of the visual information, sending (30), by means of the wireless transmitter (6), a reset command (27) of the visual information comprising a universal communication address.

10. Method of configuring an electronic device (10) by a control tool (12), the method comprising: - the method of sending the command (28) according to claim 8 or 9, and - the method of executing the command (28) according to any one of claims 1 to 7.

11. Electronic device (10) comprising a wireless receiver (3) and means (14) configured to carry out the execution steps according to any one of claims 1 to 7.

12. Control tool (12) comprising a wireless transmitter (6), a human-machine interface (13) and means (17) configured to carry out the method of sending a command according to any one of claims 8 to 9.

13. System (19) comprising: - at least one electronic device (10) according to claim 11; and - a control tool (12) according to claim 12.

14. System (19) according to the preceding claim, comprising a plurality of electronic devices (10) according to claim 11.

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