FR2649520A1 - Installation for protecting electrical equipment by neutralisation - Google Patents

Abstract

Installation characterised in that it comprises: - a telephone network linked to a transmitter of coded radio signals 2 for sending out a coded signal associated with a defined receiver, via a call from a telephone instrument 1, by dialling the number associated with this receiver, - a device 4 fitted in the electrical equipment 3 to be protected and comprising the passive radio receiver 41 receiving the coded signal SIGMA M, SIGMA A, this receiver being linked to a start/stop toggle switch controlling the switching on or switching off of a management circuit supplying signals intended to switch off one or more elements controlling functions relating to the operating system and/or a generator of audible or optical signals.

Description

"Installation of protection of electrical equipment by neutralization".

  The present invention relates to an installation

  protection of electrical equipment ensuring the deactivation of a function linked to the

  operation and / or commissioning of a general.

  optical or sound signals.

  There are many types of theft protection systems that are more or less effective. Indeed, these installations are sometimes easily detectable and neutralizable. In some cases the installations include circuits

  that control the cut-off of the power supply

  the electrical system of the operating system, the start-up of the optical signal generators or

  but as these circuits are easily identified.

  rables it's easy to neutralize them even

  when they were started.

  These protective devices are easily detected because they include either a keypad

  code connected to the circuit itself by wires.

  As the keyboard must be accessible, it is more or less visible and therefore it is easy to find

  the protection circuit itself.

  In the case of protection systems with

  infrared remote control, an infrared sensor is required

  infrared which also makes the wires easily detectable and allows the protection system to be neutralized. The present invention proposes to create a protection installation which is simple to set up and to control, cannot be

  enacted neither with electronic means nor in follow-up

  with connecting wires with a sensor or which makes it possible to control the decommissioning of electrical equipment practically at any time and without having to

  be in the immediate vicinity of electrical equipment.

  To this end, the invention relates to an installation for the protection of electrical equipment of the above type, characterized in that it comprises: - a telephone network connected to a transmitter of coded radio signals to transmit a coded signal associated with a receiver determined, by a call from a telephone set by the formation of the number associated with this receiver, - a device on board the electrical equipment to be protected and comprising a passive radio receiver receiving the coded signal, this receiver being connected to

  an on / off toggle controlling the implementation

  or the deactivation of a management circuit

  providing signals for deactivation

  service of one or more elements controlling functions linked to the operating system and / or

  a generator of sound or optical signals.

  The part of the installation which is installed

  electrical equipment can be located almost anywhere in the equipment

  electric especially in a hidden and unusual place.

  As this part associated with the electrical equipment is controlled by radio signals emitted by the transmitter of radio signals, for example a transmitter "euro signal"

  receiving the call via the telephone network, the material

  Electric riel is not equipped with any sensor or device which would necessarily be accessible and connected to the control circuit itself, which would facilitate the location of this circuit. As, moreover, the device associated with the electrical equipment makes it possible to control a certain number of functional elements, connected to the operating system or to a generator of sound or optical signals, there are a large number of possibilities for neutralizing the

  electrical equipment and this by electrical connections

  extremely discreet, drowned in the beams

of electrical equipment.

  The device associated with the electrical equipment cannot be detected by a scanner either since it is a passive device, simply implemented by the reception of the signal and which at any other time is at rest therefore does not emit no signal

detectable.

  According to the invention, the implementation and the resting of the protection installation is done using a single signal, signal transmitted by the telephone set then the radio link to the device associated with the electrical equipment. . In the

  first case, the device associated with the electrical equipment

  trique has a rocker which, upon receipt of

  each signal switches to one state or the other.

  In the second case a signal is associated with the implementation of the protection installation and another

  signal is associated with putting the system to rest

  protection. In the latter case the repetition of one of the signals does not cause the flip-flop to pass

his other position.

  As the device associated with the electrical equipment emits a certain number of signals, it is

  possible to create a phasing out

  service of electrical equipment by emitting signals intended for different functions either linked to the operating system or controlling the use of optical or sound signal generators. These different signals can be emitted successively or '

  of repeated thong. Thus, a first signal of com-

  Mande can set up an audible warning or flashing lights. A second signal can command

  a temporary interruption of the power supply

  or the power-up system. The following signals, staggered in time, may

  perform the same function over progressive periods-

  longer until the final signal cuts off the functioning of the operating system without preferably interfering with other essential functions. This staggering or time delay between

  receiving the signal and stopping the electrical equipment

  that or from the operating system warns the user

  electrical equipment he must stop handling his electrical equipment very quickly to prevent him from undertaking maneuvers which

could be dangerous.

  The present invention will be described in a manner

  re more detailed using the accompanying drawings in which: - Figure 1 is a schematic view of the installation.

  - Figure 2 is a block diagram of the device

  tif associated with electrical equipment.

  - Figure 3 is a variant of the diagram

  device block associated with electrical equipment.

  According to FIG. 1, the installation of protective

  tion consists of a telephone network shown schematically by the telephone 1 connected to a coded radio signal transmitter 2 intended to transmit a coded signal associated directly with a receiver by a call from the telephone set of network i by forming the number associated with this receiver. The electrical equipment device 3 consists of a radio receiver, passive receiving the

  coded signal, connected to an on / off toggle which

  requires the implementation of a four-

  signal signals intended for the decommissioning of one or more elements controlling the functions linked to the operating system or to a generator

optical or sound signals.

  The device associated with the electrical equipment 3 is shown diagrammatically by the rectangle 4 and -the elements

  controlling the functions related to the function system-

  or a generator of sound signals and opti-

  that are represented by rectangle 5.

  The telephone network linked to a transmitter

  of radio signals, coded can be the telephone network

  than usual transmitting signals of the "euro signal" type: operator, Alphapage, Beep receiving radio signals. This means that the signal associated with the

  electrical equipment 3 to be protected is a signal

  several figures that we make on a telephone set

  that of the network 1. This signal is transmitted to the transmitter 2 which associates this signal with a radio signal, .coded, which will only be received by the transmitter of the device 4 associated with the electrical equipment. According to a first embodiment, the signal transmitted by the transmitter 2 to the electrical equipment 3 is a single signal associated with the electrical equipment. According to a second variant, the transmitter 2 can transmit two coded signals to the electrical equipment 3. In the first case, the signal controls a flip-flop which passes from a first state to a second state, one of the states corresponding to the setting of the protection system and the second state at the inhibition of the protection system. In the second case, one of the two signals is associated with the implementation of the protection system. This means that whatever the number of times that this implementation signal is repeated, its reception by the electrical equipment 3 will have no other function than implementing the protection system. The other signal,

  which is that of inhibition, commands the deactivation

  protection system service regardless of the number of times this signal can be transmitted from

repeatedly.

  The elements 5 controlled by the device 4 associated with the electrical equipment can act on essential functions of the electrical equipment such as for example the power supply system or the ignition system of the operating system or even on a generator of sound or optical signals. This generator is made up of all the warning devices, indicators and optical systems of the

electrical equipment.

  Control of the elements 5 by the device

  4 can be timed with success

  increasingly effective or dissuasive signals

  to warn the unauthorized user of the material

  electric riel that it must take its measures to stop these manipulations or at least to avoid

  he should not be brutally surprised during the execution

  tion of a maneuver. The time delay or period until the final shutdown and blocking of the electrical equipment can be a few minutes. The first signals can warn the user, for example by acting on a text-to-speech device, that he is borrowing unauthorized electrical equipment which will be blocked shortly. Other signals, successive in the

  time can cut the fuel system several times

  ment of the operating system, until the final cut. In parallel to this, certain signals can control the use of signaling lights and in particular the simultaneous use of all flashing lights or the horn.

  The on-board device 4 will be described below.

  after in more detail using Figures 2 and 3.

  According to the first embodiment shown

  Sent in FIG. 2, the device 4 consists of a signal receiver 41 which receives the radio signals transmitted by the transmitter 2. This receiver 41 controls by

  its ZAM signals a flip-flop 42 represented diagrammatically

  only by a movable member tilting between a

  position A and position B; position A corresponds to

  lays upon the implementation of the management circuit 43 downstream and the position M, the stopping of the operation of the management circuit 43. The management circuit 43 implemented generates non-timed signals S1, S2 ... example provided in a given order and signals

  83, S4, S5 ... which cross a timing circuit

  tion 44. This timing circuit can be replaced

  created by a program integrated into the management circuit, a program which controls the nature and the transmission time of the different signals Si, S2, S3, S4, S5 ... to implement the different functional elements 51-55 of the .operating and

  sound and optical signal generators.

  This device 4, 41, 42, 43 is powered by an independent power supply 45 preferably with a rechargeable battery to ensure it full autonomy

  necessary even if there is no power up.

  The variant embodiment shown in FIG. 2 differs from the previous one in that the receiver 41 'receives two signals SA and IM which correspond to the implementation and stopping of the protection installation. The receiver transmits

  therefore two signals SA or SM to switch 42 which sets

  the management circuit 43 also operates or deactivates the management circuit 43 also comprising a delay means 44 and transmitting the identical signals S1, 82, S3, S4, S5

  to signals S1 ... S5 of the previous embodiment.

  This device also includes a power supply

independent 45.

  The on-board device, described above, is

  easily placed in protected electrical equipment

  ger, at any location and the connecting wires.

  with the elements to order, integrate easily

  to the cable harnesses and become unnoticeable.

Claims (3)

CLAIMS R E V E N D I C A T I O N S   1-) Equipment protection installation   electric by neutralization, ensuring the deactivation   service of at least one function linked to the operating system and / or of an optical or sound signal generator, installation characterized in that it comprises: - a telephone network connected to a transmitter of coded radio signals (2 ) to transmit a coded signal associated with a determined receiver, by a call from a telephone set (1) by the formation of the number associated with this receiver,   - a device (4) embedded in the electrical equipment   plate (3) to be protected and comprising the passive radio receiver (41) receiving the coded signal EM, EA, this receiver being connected to an on / off toggle controlling the implementation or the deactivation   a management circuit providing signals from   intended for the decommissioning of one or more ele-   elements controlling functions linked to the operating system and / or a signal generator sound or optical.   2 ') Installation according to claim 1, characterized in that two signals control the device associated with the electrical equipment and each signal corresponds to one of the states of the on / off rocker. 3 ') Installation according to claim 1, characterized in that the management circuit transmits signals intended to control the elements controlling the deactivation or in service function linked to the operating system of the electrical equipment and / or the generator of optical and audible signals are timed signals, succeeding each other in the following time   a specific order and with selected intervals.