FR2797702A1 - Car anti theft remote action remote control having receiver mobile telephone reserved frequency range operating and having one-to-one identification code ringing signal telephone post activated. - Google Patents

Abstract

The remote control unit has a receiver (10) functioning in the mobile telephone reserved frequency region and having a one to one identification code activating a command mechanism. The identification code is a telephone number accessible from any switched network post which produces a ringing signal and triggers the action.

Description

The present invention relates to the field of remote controls and, more particularly, the field of remote control of a specific action relating to a fixed or mobile object whose position is not necessarily known.

 There are many remote control systems by radio or wire transmission capable of controlling a specific action. generally, when there is radio transmission, the remote control object must imperatively be in the electromagnetic field generated by a fixed beacon emitting the instructions, which greatly reduces the range of use when the object is mobile, such than any vehicle. Examples of such a system are found in particular in documents FR-A-2 773 756 and US-A-5 224 Furthermore, if the transmission is wired, like conventional home automation, the object must be stationary, such as an apartment villa, and a break in the connection wire causes a total system shutdown, which can seriously affect the object checked.

 To overcome these drawbacks, more and more often the cellular mobile telephone network is used, which covers substantially all of the inhabited geographic areas. However, all known systems implement the transmission of more or less complex identification codes that the average user always has to memorize, and which are, in any case, forgotten when the opportunity to use them is random or extremely rare, as this happens they must be used in the event of theft or break-in.

 In addition, the high price of telephone communications by cellular network tends to limit its use to the strict minimum, the time required to compose an identification code, even if the latter is well known to the user, still remaining one cost often prohibitive compared to the interest of the remote control action.

 The present invention therefore falls within this context, and aims to overcome these drawbacks.

 The present invention finds a main application in the field of anti-theft devices for vehicles, but also in related fields such as the transport of funds and / or goods in which a door unlocking can be favorably remote-controlled from a command center. remote, especially for time stamping and / or security, and also in the field of home automation where certain specific actions must be controlled remotely.

 Document EP-A-0 778 184 describes a device for remotely deactivating the operation of a vehicle in the event of a theft observed. This complex device can use a cell phone to inform the owner of the vehicle in the event of theft, but the latter must use a conventional transponder and use multiple identification codes to stop the vehicle.

 Document US-A-5 276 describes a more efficient system implementing the cellular network of mobile telephony, but, here again, multiple identification codes must be used, which is contrary to the spirit of the present invention. and involves the use of complex microprocessors and at least one on-board keyboard.

 The invention therefore relates to a remote control system for a specific action relating to a mobile fixed object, the position of which is not necessarily known, using a receiver operating in a frequency band reserved for cellular telephony and comprising a code d 'one-to-one identification, the receiver being connected to a means for controlling the determined action.

 According to the invention, the identification code is a simple telephone number accessible from any telephone set in the switched network, a simple ring signal received triggering the determined action.

 Preferably, the receiver is a cellular mobile telephone connected to a means of detecting the occurrence of a specific fact affecting the object, by means of a control means triggering a determined numbering in cellular cellular telephone output signal. .

 According to another simplified embodiment, the receiver is a receiver of messages of the "pagger" type. As everyone will understand, since it is the ringing signal which controls the determined action, the device of the invention is extremely simple, therefore inexpensive, and there is no additional communication cost for the user.

 The invention will be better understood, and other objects, advantages and characteristics thereof will appear more clearly on reading the following description of preferred embodiments given without limitation to which a sheet of drawings is annexed to which Figure 1 is a sysnoptic diagram of the operation of the system according to the invention; and Figure 2 schematically represents the additional electronics necessary for the implementation of the invention.

 Referring now to FIG. 1, the basic system according to the invention consists of the assemblies referenced 10, 12 and 14.

 The assembly 10 is a conventional receiver operating in one of the frequency bands used in cellular telephony. It can thus be a simple receiver of messages of the 'pagger' type, or else a simplified mobile telephone. In both cases, a one-to-one conventional telephone number is assigned to the receiver.

 Thus the user of the system can carry out a remote control by simply dialing the telephone number of the receiver 10 on a telephone set connected to the switched network. The system is therefore capable of operating from a point very far from the remote-controlled object, and this without additional local retransmission beacons being required.

 The ringing signal is taken from the receiver 10 and is applied to a control member 14 by means of a rectification and amplification stage 12.

 An example of this stage 12 has been shown diagrammatically in FIG. 2 to show its extreme simplicity. A diode 30 ensures rectification of the ringing signal, and the signal thus rectified is applied to the base of a pnp amplification transistor 32 biased by means of a resistor 34, the output signal being taken between bias resistor 34 and the collector of transistor 32 to be applied to the input of the control member 14. Obviously, this example is purely illustrative of one embodiment, any other rectification and amplification circuit being able to be validly implemented.

 In a more elaborate embodiment in which the receiver 10 is a mobile telephone operating in a cellular network, adds to the system a set of detection 24 of the occurrence made precise and determined, the output signal of which is used to control a switch 22 of relay type, connected to telephone 10 so as to bypass and replace the call back control key for a telephone number in the telephone memory.

 Advantageously, a set of rechargeable batteries (not shown in the Figures) is provided for electrically supplying components of the system in the event of normal power failure. Similarly, the receiver 10 remains substantially always connected to normal power to ensure maximum recharging of its autonomous batteries.

 Those skilled in the art will thus have understood that the remote control system according to the invention is extremely simple, therefore of great reliability, and of an inexpensive production and use.

 In its application to an anti-theft device 'vehicle uprooting, the simplified embodiment using a "pagger" type receiver is sufficient to allow a driver whose vehicle is stolen before his eyes with the ignition keys , trigger on-board alarm and / or remotely control engine shutdown.

 Other applications of this simplified embodiment in the field of vehicles are also envisaged. For example, mention may be made of the remote starting of the engine of a vehicle to put an air conditioning means into service before the driver enters his vehicle. Mention may also be made of the remote control or activation of electric locks of the doors for access to the loading of a vehicle for transporting cash or goods from a remote control center, or else for the doors of a rental vehicle. would not have been returned in good time.

 This simplified remote control system also finds applications in the field of home automation, for example for controlling access doors to a garage or a protected place with controlled access.

 The more elaborate embodiment using a mobile telephone finds major application in the field of anti-theft of motor vehicles. The occurrence detector 24 is then a simple theft or break-in detector, for example of the volumetric energy consumption type. The system then makes it possible to warn the owner of the vehicle who can then take the decision he wishes, for example by remotely controlling the immobilization of the vehicle.

 This more elaborate embodiment can also be used in home automation to allow remote monitoring of premises without requiring the costly care of a specialized company.

 Although we have represented and described what are currently considered to be the preferred embodiments of the present invention, it is obvious that a person skilled in the art can make various modifications without departing from the scope of the present invention. as defined by the appended claims.

 For example, in the case where the receiver 10 is a mobile telephone operating on a cellular network, it is advantageous for the telephone to be of the type without subscription and with a prepayment card in order to further reduce the cost of operating the system.

Claims (1)

CLAIMS 1 - Remote control system for an action relating to a fixed or mobile object whose position is not necessarily known, using a receiver (10) operating in a frequency band reserved for cellular telephony and comprising a code one-to-one identification, the receiver (10) being connected to a means for controlling said action, characterized in that said identification code is a telephone number accessible from any telephone set in the switched network, a simple ring signal received triggering said action. 2 - Remote control system according to claim 1, characterized in that said receiver (10) is a cellular mobile telephone. 3 - Remote control system according to claim 2, characterized in that said cellular mobile telephone is connected to a detection means (24) of the occurrence of a specific fact affecting said object, by means of a control means (22) triggering a determined numbering as an output signal from said cellular mobile telephone. 4 - Remote control system according to claim 1, characterized in that said receiver (10) is a receiver of messages of the "pagger" type. 5 remote control system according to any one of the preceding claims, characterized in that the said object is a mobile motorized vehicle, the said determined action being chosen from the activation of an alarm, the breakdown of the said vehicle by switching off of the motor fitted to it, the putting into service of an air conditioning means, the activation of electric locks and the combination of those. 6 - Remote control system according to claims 3 and 5, characterized in that said detection means (24) is a conventional theft detector. 7 - Remote control system according to any one of the preceding claims, characterized in that the said object is fixed, the said action being chosen from the known actions of home automation.