FR2495396A1 - Remote control for power network by digitally encoded signals - uses medium frequency digitally encoded signals transmitted along power network and detected to drive relays to connect appliance to network - Google Patents

Abstract

The network (22,24) in a building or home has remote switching of various appliances using a digitally encoded signal carried along the distribution network and detected by controllers associated with individual appliances. A home computer may be incorporated to provide automatic control of the appliances. The distribution network (22,24) is radial with branches taken off. Particular appliances (P30-P34) are connected to the network through relays which operate under control of a detector network (R30-R34) associated with each relay. The detector networks extract the medium frequency signal transmitted along the power network in digitally encoded sequences from emitters (E30-E34) which may be centrally located or distributed round the network. A home computer (54), with suitable interfacing (155), may be used to control operation of the devices on the network.

Description

 The invention relates to the control, in particular the remote control, of electricity user stations connected to the supply network of a functional unit such as a dwelling, an automobile, a hospital, etc., in which the different items are generally placed under the control of a given user entity. It applies in particular to autonomous electric power consuming installations downstream from a clean energy source or from a distribution point equipped with a charging meter, such as, for example, power distribution installations. electric k for domestic purposes.

 In an electrical energy distribution installation, the user stations are generally connected in parallel to a supply line which connects all these stations to the energy supply. According to one embodiment of the control of such a station in a conventional installation, the station is connected to the network via a normally-powered socket and a manual control device is placed in series, directly on the link between this socket and the substation. This mode does not easily protect itself at the control of the user station at relatively large distances, nor at the command from several scattered points.

 According to another embodiment, the control of each station is carried out using a switch mounted at a fixed station, at least one of the power conductors of the user station then running between the network connection point. and the user station through the switch. This conductor is generally integrated in or attached to the walls of the room or the cabin in which the energy is distributed.

 When several control points are desired, it is generally necessary to draw additional conductors, either directly between these control points to achieve a command called "back and forth" or between each of these points and a central relay to which is connected the user station.

 In all cases, the change in position of the control points is not easily achievable, it is desired to increase the number of control points or change the layout.

 In addition, conventional user station control systems implement manually operated switches that do not lend themselves to control by electrical means to perform remote control functions. consequently, when it is desired to control one or more receivers from a remote control device, for example operating in response to commands from a computer, it is necessary to provide for the acquisition and installation of special relays for each of the receiving stations, adapted to receive, by means of a specific wired or wireless link, the remote control signals. The traditional control installations of user stations therefore do not lend themselves to the progressive automation of the domestic installations in the framework for the development of telematics systems.

 In view of these difficulties, the present invention aims at increasing the versatility and flexibility of the user station control systems in an electrical energy distribution installation.

 For this purpose, the invention provides in particular a control arrangement for a set of electrical energy user stations distributed over a distribution network in a functional unit, characterized in that it comprises: for each user station, a receiver comprising a power supply relay for electrically connecting, in its active condition, the user station to the distribution network and control means responsive to signals transmitted by the distribution network itself to switch this relay; and, for each receiver, at least one signal transmitter recognizable by this receiver on said power distribution network for controlling the switching of the relay of this receiver, the transmitters corresponding to the different receivers being dispersed in said distributor network. energy.

 Preferably, each transmitter is capable of communicating with each corresponding receiver by digital addressing by means of a series of frequency signals transmitted on the conductors of said distribution network and capable of being decoded by the control means of the receiver, these the latter then being operative to control the relay in response to the addressing signals or to a signal accompanying these signals.

 Each user station may be associated with a plurality of transmitters dispersed at different points of the network for the control of the same station and, conversely, provide several receivers of identical addresses that react simultaneously with the control of the transmitter of the same address. In addition, the addressing may be designed such that the addresses of certain receivers comprise a portion-cotumune after receipt of which these receivers are operative to execute a command sent after this common part.

 Thanks to the invention, it is possible to carry out the control of all or part of the user stations of an electrical power distribution installation directly by the power network son of this installation itself. The output of the wires and the sockets of the user devices can each be equipped with a respective receiver. Transmitters corresponding to these receivers can be connected throughout this network at multiple points, preferably interchangeably, for example by means of sufficiently provided sockets properly arranged in the functional unit, each of these emitters being able to emit specific control signals from a receiver. It may include address programming means for this purpose. These transmitters can be standardized and, by changing their connection point along the distribution network, it is easy to modify the configuration of the control installation of the different receivers. . The transmitters may be grouped into control units each capable of selectively controlling several user poses at the appropriate selection means such as a button.

In addition, instead of or in addition to such transmitters my nodes manually by the user, it is possible to
connect to the connection points of the interworking devices capable of retransmitting on the network remote control signals from selected user stations coming from automatic control devices, for example computers. It is possible to act remotely via the network on any user station connected to it by means of a central controller such as a home computer, a computer board or other management body suitable for the intended use.

 The invention further relates to transmitters and receivers standardized, and preferably standardized, suitable for use in the implementation of an installation of the type previously defined.

 An emitter according to the invention comprises a housing provided with means capable of allowing its connection removably, to an electrical power distribution network, a transmitter capable of transmitting a selected frequency on said network, a black address, an encoder adapted to modulate the transmission of such a frequency in a series of signals programmed according to the content of the address memory, e manually operable means for controlling the transmission of said series of signals on the network.

 Preferably, such transmitter also includes an order selector for transmitting an execution command with the corresponding address to the corresponding receiver on the network.

 A receiver according to the invention cor- orend a housing provided with means this connection to the bucket, a filtering device tuned to a predetermined frequency distinct from the mains supply frequency; means for storing an address; a decoder for recognizing the presence of a series of signals at the output of the filter device corresponding to the address in memory and a relay adapted to be activated when a signal indicating the recognition of the address is present at the decoder output.

 Preferably, the address storage means of the receiver and / or the transmitter are manually programmable by a user. The housing may comprise for this purpose marks on one of its faces indicating the positions in which the user can exert a selective action, by perforation for example, to perform this programming.

 According to a receiver embodiment, the relay is associated with a control device enabled by the output signal of the decoder for transmitting to the relay an order of execution of a command transmitted by the filtering device.

The explanations and the description of various examples of implementation of the invention which follow are given with reference to the appended drawings, in which
FIG. 1 is a schematic view of a control installation of electrical energy utilization stations according to the invention
FIGS. 2 and 7 show two embodiments of a receiver
FIGS. 4, 5 and 6 represent three modes of programming the receivers
- Figures 7, 8, 9 and 10 show four embodiments of transmitters;
FIG. 11 schematically illustrates the constitution of the circuits of a transmitter device
- Figure 12 schematically illustrates the constitution of the circuits of a receiver device.

 FIG. 1 schematically shows an electric power distribution network in a functional unit such as an apartment or a dwelling house. The power conductors depart from an electric power meter 20 fed from the public low voltage distribution network. The conductors 22 and 24, from the connection terminals 23 and 25, respectively, of the meter run through the walls of the dwelling in a suitable path to serve the different points of use of the electrical energy in the dwelling. Conductors 22 and 24 are subdivided into branches suitable to connect to the network all the points provided for access to it in the dwelling. These various connection points are equipped with appropriate connection devices. In a conventional installation, these devices essentially comprise wire outlets at specific points for the connection of substations that use lighting fixtures. Sockets P30, P31 are connected to power outlets (schematized by squares in the diagram of FIG. 1), respectively 40, 41 and user stations P32, P33 and P34 are connected to power sockets. specified wire outlets. These utilization stations P30 to P34 are connected in parallel to the wires 22 and 24 or their branches constituting the distribution network.

 The user stations are constituted by all the energy receivers usually used in a domestic installation such as lighting apparatus, household appliances and various domestic machines, heaters, air conditioning, ean heaters, television sets and the like. radio, machines and various games.

 Each of the utilization stations P30 to P34 is equipped, in accordance with the invention, with a respective receiver device, these devices being numbered from R3O to R34 respectively. Each of these receiving devices is connected to the network in parallel, either directly or via a connection socket in the case of specific output points for the stations R32 to R341 or by the respective electrical socket 40, 41 for the receivers R30 to R31, Each of these receivers comprises a relay of static type not visible in FIG. 1, able to establish or interrupt the power supply of the corresponding user station as a function of the electrical signals transmitted to these receivers via lines 22 to 24 and of their derivations constituting the network.

 These signals consist of electric currents of control frequency different from the usual frequency of 50 to 60 Hz power supply. For example, this frequency can be several hundreds of hertz to be filtered at each of the receivers to distinguish these control signals from the power signals conveyed by the network.

 Each receiver R30 to R34 is for recognizing a clean signal to obey an order transmitted along the power supply network 22, 24 from a corresponding transmitter designed to perform control of that receiver. Thus, the transmitter 332, connected to a power outlet 42 of the network 22, 24, is able to transmit a frequency signal on this network to control the switching of the relay present in the receiver R32, which is programmed to recognize the signal from this transmitter. In the same way, the emitters E31 and '31 respectively connected to the sockets 43 and 45 on the network 22, 4 emit signals suitable for being recognized by the receiver R31 for the switching of the power station relay P31 .

 The receiver R33 is adapted to be controlled by an emitter E33 connected to a socket 48 of the network. and emitter E33 is coupled to a transmitter 52 connected to the same socket to control the preceptor R32. In addition, a control receiver RT33 attached to the transmitter E33 and connected to the same socket recognizes the commands sent to the receiver R33 (for example a cellar lamp) and allows the user of the transmitter E33 to know at any time the condition supplied or not by the P33 use station.

 Transmitters E31, E'31, E32, E'32, E33 and E34 are maneuverable by hand by the occupants of the house thus equipped. In operation, their handling is similar to that of a switch.

The installation is furthermore equipped with an interface circuit 55 between a socket 47 of the network and a home computer 54 programmed to carry out the control by corresponding signals of the receivers R30 and A34, as the designations r .30 and '34 in the rectangle representing this interface I j5. The IL interface 55 acts as a signal transmitter on the network at the address of receivers R30 and R34. In this example, it is intended
adapting control signals from the computer 54 corresponding to the switching commands of the receivers R30 and i34, to the transmission on the network of the signals intended to execute these instructions.Thus, in this example, the station of use P34 can be switched not only by a transmitter E34 connected to the jack 46, but also via the computer 54.

 The network 22, 24 comprises other connection members or sockets such as 49 and 50 where it is possible to connect either other transmitters intended to control the receivers already in service or other receivers, or existing transmitters whose we want to mummify the site.

 In order to enable the control of a large number of receivers under particularly reliable transmission and detection conditions, it is provided that the signals emitted by the different transmitters are constituted by series of pulses of a carrier at the control frequency. . Each series of pulses is digitally coded according to the address of a receiver. It can advantageously associate the encoding of the receiver address with an "open" or "closed" order execution command for the relay of the receiver programmed to recognize the corresponding signal. With this effect, to each simple transmitter such as E31 or E34 is assigned a specific address code of the receiver with which it is associated. On the contrary, the transmitter constituted by the interface I 55 can be of the universal type, it is that is, capable of generating any sequence of pulses under the control of a corresponding coded indication from the speaker 54, each indication including the address of a respective receiver.

 It is desirable that all the signals transmitted for control purposes on the network 22, 24 remain confined to the latter and can not, via the electrical connections, propagate to other consumption units such as than other homes connected to the public distribution network, at the risk of seriously disrupting the controls of the user stations of these different units.

For this purpose, it is advantageous to install, downstream of the meter 20, a plug circuit 58 by picking up the signals at the chosen control frequency flowing over the network 22, 24 to go back to the energy meter at the input of this network.

 The receivers may advantageously take one of the external forms represented with reference to FIGS. 2 and 3. In FIG. 2, a receiver 60 comprises a cyclindrical case 61 of standardized dimensions comprising on one of its flat faces two parallel sheets 62 intended to be The opposite side 66, on its opposite face 66, opens two female sockets 68 adapted to receive corresponding male plugs 69 of a socket 70. connected by a flexible cord 72 to a user station intended to be controlled by this receiver 60. In an exemplary embodiment, the dimensions of this receiver are of a diameter of about 6 centimeters for a thickness of 3 centimeters. made of an insulating plastic material and encloses the reception circuits which will be explained below.

 Another embodiment of a receiver 75 is shown in FIG. 3. It is intended to be inserted between a socket 76 fed by the grating 22, 24 from a wire outlet 78 and a lamp 85. The receiver 75 comprises a casing 77, of substantially cylindrical shape, which has, on one of its end faces 79, a base shape provided with two contact pads 80, suitable for cooperating with corresponding pads inside the housing. When the casing 77 is engaged on the lateral surface of the casing 77 in corresponding bayonet grooves 82 of the socket 76. On its opposite end face, the casing 77 forms a receptacle 83 in the form of a socket adapted to receive the base 84 of the socket the lamp 85 constituting the use station.A balancer device allows the attachment of the lamp 85 in the socket of the receiver. The casing of this receiver 75 contains the circuits specific to its operation which are explained below.

 These circuits include in particular a programmable address storage device of the outer casing 61 or 77 with a label 88 visible in Figures 2 and 3.

 A label 88 is shown in detail in FIG. 4. It has eight positions represented by circles 89 aligned along this label. Each of the circles 89 corresponds to a radial hole in the housing 61 or 77 corresponding. These holes are numbered from 1 to 8. Inside each of the holes is, in alignment with the latter, an electrical connection of a memory circuit in the housing which can be broken by perforation by introducing an element pointed in the corresponding hole.

It is thus possible to program the address memory by punching the label at selected locations 89. In the example of FIG. 4, the perforated holes are represented in black and carry the numbers 2, 5 and 6 corresponding to an address in binary numbering of 0 1 0 0 1 1 0 0.

 With eight address bits, as shown in FIG. 4, it is possible to obtain 256 address combinations for the control of the user stations of a home installation.

 FIG. 5 represents a form of ternary address coding by perforations of the type represented with reference to FIG. 4. It has two lines 91 and 92 superimposed eight perforable positions 90 concealing access holes to a memory, a perforated position Line 91 corresponds to a digit 0 and a perforated position of line 92 corresponds to 1 in the address of the receiver. The amount of perforation in a column corresponds to an indeterminacy for the corresponding digit of the address word Tel is the case of position 7 of FIG. 5. A receiver programmed according to the illustration of FIG. Address: O 1 1 0 1 1 1 1 and 0 1 1 0 1 1 01.

 According to FIG. 6, a decimal bit coding is used by providing three superimposed lines 95 96 and 97 of ten perforable positions each and corresponding respectively to the units, tens and hundreds. Only one position per line is punched to store an address in decimal digits such as 243 in the example shown.

 The emitters may be constituted as represented in FIGS. 7 to 10. An emitter (FIG. 7) comprises a rectangular housing 100 comprising an operating lever 101 on its anterior face 102. At the rear, this stacker is connected by a conductive cord. 104 to a plug plug-in jack 106 in a socket 110 of the network 22, 24. On its side wall, the transmitter comprises a label 112 coated with aligned marks similar to those described about the receivers of Figures 4 and 6 These marks correspond to holes in the wall of the housing 100 at the bottom of which are arranged memory matrix interconnections which can be perforated to perform the corresponding storage of an address assigned to this receiver.

The lever 101 has two rest positions, one upwardly as shown, and the other down. In each of these positions, it is possible, by exerting additional pressure on the head 105 of this lever towards the housing, to cause an address signal to be sent from this transmitter to the corresponding receiver.

This signal is accompanied by a different execution command depending on whether the lever position is tilted upwards. In the position shown, a pressure on the lever 101 towards the housing 100 causes the transmission of an order to open the power supply of the user station to the address of the message sent by the transmitter.

 In FIG. 8, a transmitter 120 has three different receiver addressing possibilities programmed by tags 121, 122 and 123. At each of these addresses corresponds a respective control lever 125, 126, 127 for sending the commands. opening and closing of the corresponding receiver, as explained with reference to FIG. 8.

 A transmitter 130 (FIG. 9) comprises a single lever 132 for "open / close" command transmission for four relays whose addresses are programmed on tags 134.

135, 136 and 137 can be selected by means of a rotary address button 138 with four positions.

 A transmitter 140 (FIG. 10) makes it possible to carry out selective addressing of all the receivers of the installation according to a ternary code of the type defined with respect to the receiver of FIG. 5. It comprises a lever of order 149 and a row. of eight levers 141 to 148 at three positions 0, 1 and N, respectively corresponding to the number 1 for the up-tilted position, 0 for the down-tilted position, and indifferent value for the intermediate position. As shown in FIG. 10, the transmitted signals will be transmitted to all the receivers whose address corresponds to 1 1. Q G. 1 1, the point representing indifferently the value 0 and the value 1.

In other words, when the lever 149 is operated for the execution of a closing command (F) or an opening command (0), the corresponding order will be sent to the receivers before the following addresses:
1 1 0 0 0 0 1 1, 1 1 1 0 0 0 1 1,
1 1 0 0 0 1 1 1, 1 1 1 0 0 1 1 1.

 A variety of emitters and receivers are thus produced, which can be standardized to facilitate their adaptation to all types of networks, this distribution of domestic electricity, in particular to existing reeds.

They thus make it possible to increase the versatility of these networks and to adapt them to the automatic control of user devices under the control of automatic management bodies. These transmitters and receivers can be easily replaced in case of failure or exchanged. They can be moved at will, making it possible to adapt the installation constantly according to the needs.

 Of course, it is possible to realize these transmitters and receivers in modes other than those just described. In particular, in the case where the actuators for transmitters are of the oinaire type, that is to say, emitting only an address signal to the repeater having the effect of causing a switch However, when receiving such a signal, it is convenient to provide a control receiver such as RT33 (FIG. 13 in association with the transmitter E33, so as to control the state of the corresponding receiver R33 if this control can be performed from the transmitter E33.

 It is preferable to use a highly redundant addressing and control code, that is to say having a number of bits greater than the minimum number necessary to carry out the addressing of all the user stations. Indeed, the more the number of digits is important, the lower the probability that the parasites can be interpreted as valid addresses. If, due to the redundancy of the code, the presence of the parasites results in a refusal of identification in certain cases, the particular application of the technique according to the invention makes it possible to envisage that the user will reissue his command. . It is interesting for this purpose to emit the user able, either to control the effectiveness of its control with a control receiver, or to be able to repeat it without risk of switching the receiving relay in the opposite direction with the arrangements emitted in Figures 7 to 10.

 FIG. 11 schematically represents the constitution of an emitter such as 100 of FIG. 7. The operating lever 101 comprises four positions: two intermediate positions 1 @ 2 and 1 @ 3, or of rest, and two unstable positions 154 and 151 In the latter, it establishes a contact between a wire 155 fed by the sector to which it is connected and a contact 156 connected to an input 158 of a control circuit 160. When the lever 101 is in the rest position 153, it can be pushed in the direction of the closing order transmission position 154 in which it makes contact between the line 155 and a contact 157 connected to another input 159 of the control circuit 160.

The lever 101 is constantly recalled to the rest position 152, 153 closest respectively by unrepresented springs. In its position 151, the lever 101 also makes contact between the line 155 and a contact 162 connected to the input 163 of a power supply circuit 165 which is then powered by the mains to provide a DC voltage of approximately 10 volts on its output 166 to the control circuit 160, to a memory 168 and to a frequency generator 170. In the same way, the supply circuit 165 is excited by a contact 161 when the control lever 101 is in position 154. The output 169 of the circuit 160 is connected to an input 171 of the generator 170.

 The frequency generator 170 is connected by an output transformer 172 to the mains link 155 to inject pulses of frequency signals generated by the generator 170 under the control of the circuit 160 into the latter. The latter goes into action when its input 158 is energized to control the frequency generator 170 during a succession of brief time intervals following a sequence imposed by the binary indication in memory 168, followed by a signal corresponding to the information openings for accomplishing the corresponding function to the receiver responding to the address transmitted on the network by the line 155. The operation is identical when the control circuit 160 is excited by its input 159 with the difference that the signal following the address message corresponds to a command code of "closure".

 A receiver 180 is shown diagrammatically in FIG. 12 connected to a line of the network 181 via its input 182. This is connected on the one hand to the input of a filter 183 able to separate the signals of control transmitted on the power distribution network 22, 24 (Figure 1) of the power supply frequency (generally 50 Hz). The filter shows at its output a pulse train (output 184) admitted to an input 185 of an acquisition and recognition circuit 186.

The latter is adapted to cooperate with a memory 188 in which is stored the address code of the receiver 180, for example by programming by perforation as described above.

 A feed 190 connected to input 182 provides a suitable DC voltage to circuits 186 and memory 188 through its output 191.

 The signal acquisition and recognition circuit 186 may be constituted for example by a rudimentary microprocessor adapted to temporarily store the succession of bits appearing at the output 184 of the filter 183 to then confront the message thus stored with the contents of the memory 188 and deliver, in the event of a match, a signal on its output 194 for controlling a solid state relay 195 in one direction and on its output 196 to control this relay in the other direction. The solid state relay 195 is interposed on the power supply conductor 197 of the utilization station to which the receiver 180, power supply conductor 197 connected to the input 182 of the receiver is assigned.

In the case where the relay 195 is electro-mechanical, a delay can be provided at the output of the microprocessor to leave the relay 195 the time to switch.

 Preferably, the relay 160 is able to return to its inactive condition, that is to say, interrupting the power supply of the user station in the event of a pair of current, so that at the time of the reappearance of the voltage, the station is in the unpowered condition (open relay).

For some stations however (monitoring devices in particular), the microprocessor is programmed to keep in memory the relay condition in case of failure to put the relay in this condition when the reappearance of the mains voltage.

 Receiver circuits can be realized using integrated components consuming very small amounts of energy in the waiting position. It is also possible to use, for example, two transmission frequencies of the control signals on the network. These frequencies make it possible to multiply the coding possibilities of the signals. It is also possible, for example, to use a precursor signal at the first frequency to trigger the putting into service of the power supplies (waking state) of all the receivers, before the transmission of the address and control signals themselves of the latter. using the second frequency.

 The embodiments which have just been briefly presented constitute only a non-limiting form of implementation of the invention. Of course, the manual controls shown for the transmitters could be replaced by proximity devices or other organs. Many other embodiments of described functions are possible.

 The intended addressing mode makes it possible to execute commands in a hierarchical manner in which several receivers having a common address portion can be simultaneously activated in response to an address message corresponding to this common portion followed by a command. . We have seen for example previously, through the use of a ternary type code, described with reference to Figures 5 and 10, a means of performing the simultaneous addressing and control of several receivers with different addresses.

 It can thus be seen that, thanks to the invention, it is not necessary to carry out a specific wiring of the control of the various utilization stations = an electrical energy network. The realization of the control of all of these stations is carried out in some way in an unmarked way through the power supply network. The system is compatible with existing electrical power distribution facilities.

 The invention opens the way to many applications.

 First of all, in the field of electricity distribution for domestic purposes, it makes the automatic remote control of certain apparatuses such as televisions, sound reproduction apparatus; <naute fidelity, appliances, etc. to program the conduct.

 In this area also, it allows a generalization of the multiple commands of type back-and-forth and possibly allows to ensure the control of an existing remote switch, It also allows to modify without rewiring, the existing facilities to adapt them to the needs .

 A particular application to this reconfiguration facility can be found in hospitals and hotels that can be equipped at will with additional devices available to customers according to their needs and their own tastes.

 In the field of energy savings, it makes it easier to explore the tariffs offered by the electric power distribution company, in particular the night rate, possibly by ordering, for example, water heaters by means of a clock.

 The devices according to the invention make it possible not only to adapt the control to the modern automatic control systems, but also to transmit information and remote commands, for example by telephone or (remote release without heating wiring or certain safety devices).

The invention also applies to the control of oostes users connected to a distribution network of between gir electric in other types of functional units that dwellings. Thus, for example, in the field of vehicle construction, particularly automonbiles, it makes it possible to replace complex electrical cables, adapted to the production of sets of electrical functions of a vehicle, by a simple power supply device. set your usage stations. The control of each of these stations is carried out by means of combinations of receivers addressable by transmitters which enable the installation to be channeled. It is no longer necessary to provide a particular wiring diagram for each model variant according to the electrical accessories provided. Storage and preparation of the installation of electrical circuits on board vehicles proves considerably facilitated. At the same time, the circuits - electrical distribution the vehicles are constam
@ e @ t perfectible long after their construction, for i @@@ llation @e new accessories.

 The same type of application is possible for air and marine vehicles.

Claims (13)

 1. Control installation of a set of electrical energy user stations distributed over a distribution network in a functional unit, characterized in that it comprises:  - for each user station (P30B F34), a receiver (R30 to R34) comprising a power supply relay (195) adapted to electrically connect, in its active condition, this user station to the distribution network (22, 24) and control means responsive to signals such as address and / or control signals transmitted by the distribution network itself to switch this relay;  and, for each receiver (R30 to R34), at least one emitter (E30 to i34) of signals recognizable by this receiver on said power distribution network for controlling the switching of the relay of this receiver, the emitters corresponding to the different receivers being furthermore dispersed in said energy distributing network (22, 24).  2. Installation according to claim 1, characterized in that it comprises ink for at least user stations (P32), several transmitters (32, E'32) distributed along the network.  3. Installation according to one of claims 1 or 2, characterized in that at least one of said transmitters (112) and / or one of said receivers (60) is adapted to be removably connected to any one of several points of connection of the distribution network.  4. Installation according to one of the preceding claims, characterized in that each receiver (R39 to R343 is provided with a digital address and each transmitter (EB0 to E34) respectively comprises means for transmitting on the network addressing signals corresponding digital codes, such as coded pulse trains.  5. Installation according to claim 4, characterized in that several of said receivers have addresses having a common part that they are suitable to recognize to jointly perform a command associated with the reception by these receivers of this part of common address .  6. Installation according to one of claims 1 to characterized in that one of the emitters (E33) at least is spatially associated with a control receiver (RT33) adapted to recognize the signals emitted by this transmitter, this receiver controlling a means of signaling the reception of said recognized signal.  7. Installation according to one of the preceding claims, characterized in that at least one of said transmitters (112, 130) is a manually operated device and at least one of the transmitters is an interface (I55) specific to retransmitting on the network (22, 24) encoded addressing and / or control signals from a remote control device such as a device for processing, managing or receiving information X  8. Installation according to one of claims 1 C 7, characterized in that it comprises at least one filter (58) adapted to prevent the output of said control signals of the distribution network serving the functional unit.  9. Apparatus transmitting signals for a control installation according to one of claims 1 to 8, characterized in that it comprises a casing (112; 120; 130; 140) equipped with electrical connection means such as a socket (106) with connection members (110) to the network (22, 24) and, in this stack, a generator (170) of frequency signals on the network at a frequency different from that of the network, and a device (160) ) operating in response to a manual actuator (101) or a remote control signal for controlling the operation of said frequency signal generator (170) in a sequence imposed to transmit on the network a series of frequency signals suitable for being detected at any point in the network.  Transmitting device according to claim 9, characterized in that the control device comprises a programmable encoder (168) for setting the sequence of frequency signals suitable for being emitted by the generator, this encoder preferably being accessible from the outside. boot by a user to be programmed for example by perforation.  11. Transmitting device according to claim 10, characterized in that it comprises a command selector (132) able to cause the transmission on the network of a corresponding signal b the execution of a determined command in connection with an address prescribed by the encoder and / or an address selector (138) b outside the stack (130) controlling the encoder for modifying the sequence of transmitted frequency signals according to the position of this selector.  12. Receiver for controlling the powering up of a user station in an installation according to one of claims 1 to 8, characterized in that it comprises a casing (60; 75) equipped with means such as plugs (62; ) or base (79) for its connection to the network (22, 24) and in this housing, a relay (195) suitable for switching a link (197) between the user station and the distribution network, a filter (183) tuned to a frequency different from the mains supply frequency and capable of separating frequency signals transmitted on the distribution network of the power signals, and a decoder (186,188) of the frequency signals at the output of the filter (183) , preferably programmable by the user, for recognizing at least one series of characteristic frequency signals of said receiver to allow switching of the relay (195).  Receiver according to Claim 12, characterized in that it comprises a power supply device (190) able to be excited by the reception of a stand-by signal on the network (181), in order to supply the decoder waiting for reception of the frequency signals transmitted on the network.