RU2194635C1 - Vehicle radio security system - Google Patents

Abstract

FIELD: transport engineering. SUBSTANCE: invention relates to vehicle security systems with radio channel. Proposed system has control unit, protection mode setting unit with electronic label and carried transceiver, and vehicle functional members locking units. System utilizes also external protection structure such, as garage housing. Sensor of unauthorized action onto protection structure and stationary transmitter, sensor of action onto vehicle carried receiver coupled by radio with stationary transmitter, decoder, controllable relay and vehicle unautorized action sensor are also provided. Protection system is made distributed. If criminal breaks into garage, i. e. at the first line of protection alarm signaling units inside vehicle are set into operation and locking units are prepared for starting. At the second line of protection readiness for operation is confirmed after initiation of ignition switch, when system has not recognized the owner. EFFECT: improved protection from stealing without increase of cost and complication of system. 3 cl, 3 dwg

Description

 The invention relates to security systems for vehicles (TS) using a radio channel for transmitting alarm messages, and is intended to prevent unauthorized use of a vehicle (theft, theft).

 To protect the vehicle, radio channel devices (the so-called "radio relays") are used, which include one or more relays made with normally closed or normally open contacts, the control input of each of which is connected through the decoder to the output of a radio receiving device that receives encoded signals from the radio antenna . Received code signals act on the executive relay, which blocks or unlocks any of the units that affect the movement of the vehicle (ignition system, fuel supply system from the gas tank, etc.). To form the indicated code signals (packages), radio transmitting devices are used.

 So, according to the patent US 6206130, 60 R 25/00, 03/27/2001, a code sequence is generated and transmitted to the vehicle using a push-button keyfob containing a miniature radio transmitter. Such a device has a short range.

 To significantly increase the coverage in methods and devices for their implementation, protected by patents US 6026922, 06 R 25/00, 02.22.2000; US 2001040503, 60 R 25/10, 11/15/2001, a paging channel is used.

 A common drawback of these technical solutions is the inability to automatically, i.e. without the participation of the owner (user) of the vehicle, blocking the movement of the vehicle.

 This is because to stop the vehicle but the radio channel requires that the user of the vehicle is aware of the fact of unauthorized exposure to its vehicle. Only in this case can he personally (using a remote key fob, or by transmitting a voice command to a paging network operator and then transmitting a blocking command on a radio relay from a paging center) block the movement of the vehicle. Therefore, in practice, anti-theft devices with automatic blocking of the vehicle’s movement according to alarms received from on-board sensors of unauthorized use of the vehicle, or their combination with a radio relay, are more widely used.

 An example of such a device is an anti-theft device for vehicles according to the patent RU 2160196, 60 R 25/00, 10.12.2000, selected as a prototype. It contains a control unit, the first input of which is connected to the bus of the on-board power supply network through the ignition switch, and the first output and second input are connected with the possibility of requesting and reading the unlock code, respectively, with the input and output of the site for setting the vehicle radio protection mode, which includes an electronic tag connected by a radio channel and a transportable transceiver, the input and output of which are respectively the input and output of the site for setting the radio guard mode of the vehicle, while the second output of the control unit through an internal communication channel Uniform functional block to the inputs of nodes vehicle bodies, and supply voltage inputs of each node of the functional block TC organs connected to the first input of the control unit.

 When installing this anti-theft system on a vehicle, the hijacker cannot freely use this vehicle. In order to use the vehicle, the hijacker must first identify the nodes of the blocking of the functional bodies of the vehicle (in order to further disable or replace them). But such identification requires a certain amount of time, during which the fact of an attempt to steal a vehicle can be detected and prevented by the owner of the vehicle or representatives of law enforcement agencies.

 However, when the vehicle is in a closed room (garage, "shell"), especially at night, when the hijacker's actions are hidden from prying eyes, the likelihood of theft, due to the possibility of identification and subsequent disconnection of the nodes of blocking the functional organs of the vehicle, increases.

 In order to avoid this, vehicle owners have to equip vehicles with more complex, and therefore more expensive anti-theft systems, usually with programmable processor control units.

Examples of such systems are the Black Bug Plus BT-71 anti-theft system, the Bug Super BT-84P and BT-85 security and anti-theft systems commercially available by the applicant company, the security system with high functional saturation REEF
NET R-405 (see the company catalog "Car Security Systems", 2002, pp. 6-8, 12).

 However, due to the high cost, these systems are available only to a limited circle of vehicle owners. These systems are the so-called elite class of security and anti-theft systems, to which the claimed technical solution does not apply.

 The objective of the present invention is to reduce the likelihood of hijacking a vehicle when it is parked in a garage, a "shell" or inside another external protective structure without significant complication and, accordingly, cost of the radioprotective system.

 The problem is solved by creating an additional line of vehicle protection through the use of elements of an external protective structure, for example, a garage building.

 To this end, in the well-known radio security system for a vehicle containing a control unit, the first input of which is connected to the on-board power supply bus via the ignition switch, and the first output and second input are connected with the possibility of requesting and reading an unlock code, respectively, with the input and output of the radio protection mode setting unit TS, which includes an electronic tag and a portable transceiver connected by a radio channel, the input and output of which are the input and output of the site for setting the vehicle radio protection mode in this case, the second output of the control unit through the internal communication channel is connected to the inputs of the blocking units of the functional organs of the vehicle, and the inputs of the voltage of each node of the blocking of the functional organs of the vehicle are connected to the first input of the control unit, an external protective structure is used as one of the elements of the radio protection system for the vehicle , for example, a garage case, while an unauthorized impact sensor on an external protective structure, a coding unit and a stationary station are connected in series an ionic transmitter with an integrated transmitting antenna installed inside the external protective structure, as well as a portable receiver connected in series with each other, connected via radio to a stationary transmitter with an integrated transmitting antenna, a decoder, a controlled relay and an sensor of unauthorized influence on the vehicle, and a unit The control is made with an additional input, which is connected to the sensor of unauthorized exposure to the vehicle.

 The following particular features of the invention contribute to the solution of the problem.

 The electronic tag can be made in the form of a passive keyfob containing a wearable magnetic frame in series, a rectifier, an KeeLoQ identification code generation unit and a transmitter with an integrated antenna, the second input of which is connected to the second output of the rectifier, while the portable transceiver contains a pump generator with a magnetic frame providing inductive coupling with a wearable magnetic frame of a passive remote control, and a HOOK-UP radio relay with normally closed contacts controlled by transmitter signals with integrated antenna.

 The electronic tag can also be made in the form of an active keyfob containing a key-operated keyfob mechanism in series, an KeeLoQ technology identification code generation unit and a transmitter with a built-in antenna, as well as a stand-alone power supply connected to the transmitter and an identification code generation unit, the transceiver is made in the form of a HOOK-UP type relay with normally open contacts, controlled by the signals of a transmitter with a built-in antenna.

 Figure 1 presents the structural diagram of the radio-security system for the vehicle.

The following notation is used in the structural diagram:
1 - external protective structure; 2 - sensor unauthorized exposure to an external protective structure; 3 - coding unit; 4 - stationary transmitter with integrated transmitting antenna; 5 - transportable receiver; 6 - decoder; 7 - controlled relay; 8 - sensor unauthorized exposure to the vehicle; 9 - control unit; 10 - transportable transceiver; 11 - node setting the regime of radio security of the vehicle; 12 - electronic tag; 13 - internal communication channel; 14 - nodes blocking the functional organs of the vehicle (made with delayed response elements); 15 - bus power supply network; 16 - ignition switch.

 Alarm nodes (light, sound, radio signal), also having delay elements for operation, are not shown in the diagram in order to simplify the drawing.

 In FIG. Figure 2 shows a variant of the construction scheme of the unit 11 for setting the vehicle radio protection mode based on a passive remote control.

In figure 2 is indicated:
17 - wearable magnetic frame; 18 - rectifier; 19 - block generating an identification code according to KeeLoQ technology; 20 - transmitter with integrated antenna; 21 - pump generator; 22 - a magnetic frame; 23 - radio relay type HOOK-UP with normally closed contacts.

 In FIG. Figure 3 shows a variant of the construction scheme of the unit 11 for setting the vehicle radio protection mode based on the active remote control.

In figure 3 is indicated:
24 - button mechanism; 25 - block generating an identification code according to KeeLoQ technology; 26 - transmitter with integrated antenna; 27 - autonomous power source; 28 - radio relay type HOOK-UP with normally open contacts.

 The word “HOOK-UP” is a registered trademark of the applicant company of this application. The HOOK-UP radio relay made in the housing of a standard automobile relay allows to significantly increase the level of protection of the vehicle due to its dimensions and control method, which does not require additional wires. Typically, such a relay is controlled through power circuits. In this system, a HOOK-UP relay is controlled by radio using the standard 433.92 MHz frequency for vehicle alarm systems (see GOST R 41.97-99 for the implementation of UNECE Regulations 97) and the well-known Microchip KeeLoQ dynamic coding algorithm (USA).

 The pin assignment of a radio relay is similar to the pin assignment of a standard automotive relay, which allows in most cases to install a HOOK-UP type relay instead of a regular car relay.

 In the general case, a radio relay consists of a series-connected radio receiver unit, a microprocessor, and an executive relay with normally open (type R1) or normally closed (type R2) contacts. The circuitry of the input circuits of a commercially available radio relay is indifferent to the polarity of the supply voltage (10.5 ... 15 V). The executive relay allows switching current up to 20 A. Information on the four control reset codes can be recorded in the microprocessor memory (for example, a radio relay can be reset upon presentation of any of the four remote control remote control systems to the radio protection system).

 The specific execution scheme of the portable transceiver 10 of the node 11 for setting the radio protection mode of the vehicle is determined by the specific type of electronic tag 12 used in its composition.

 So, when performing an electronic tag 12 in the form of a passive remote control equipped with a wearable magnetic frame 17 for receiving signals of the pumping frequency, as well as a KeeLoQ identification code generation unit 19 and a transmitter 20 with a built-in antenna, the portable transceiver 10 includes a pump generator 21 with a magnetic frame 22 (see Fig. 2).

 When performing electronic tag 12 in the form of an active keyfob equipped with a push-button mechanism 24 and a KeeLoQ identification code generation unit 25 connected to a transmitter 26 with an integrated antenna, the transportable transceiver 10 is a radio relay 28 (see Fig. 3).

 Variants of the construction of the node 14 blocking the functional organs of the vehicle are known from the patent technical literature (see, for example, the description of the prototype device according to the patent RU 2160196 from 06/21/2000, 60R 25/00).

 The appearance of the design of the node 14 blocking the functional bodies of the vehicle is identical to the appearance of the standard control nodes of the functional bodies of the vehicle (for example, standard automotive relays). This allows you to not connect any “extra” wires to the node 14 (except for the power wires and wires of the contact groups), due to which the visual identification of the node 14 blocking the vehicle’s functional organs by the presence of “extra” wires (compared to the corresponding control unit of the vehicle’s functional organs) becomes impossible.

 Other units used in the claimed system are conventional electronic components and do not require additional explanations.

 The claimed radio security system for the vehicle operates as follows.

 When the hijacker attempts to penetrate through the external protective structure 1, inside which there is a guarded vehicle, the sensor 2 of unauthorized influence on the external protective structure is activated. The alarm signal coming from it is converted in the encoding unit 3 into the format necessary for transmitting the alarm signal by a stationary transmitter 4 with an integrated transmitting antenna and receiving it with a portable receiver 5 with an integrated receiving antenna installed inside the vehicle. The duration of the transmission and the number of repetitions of the transmission of the alarm by a stationary transmitter 4 with an integrated transmitting antenna should ensure reliable reception of this signal by the portable receiver 5.

 From the output of the transportable receiver 5, the alarm signal is transmitted to decoder 6. Decoder 6 analyzes the code of the received alarm signal and compares it with the set of valid alarm signals stored in it (there can be several such signals, in principle, since the garage can be equipped with several stationary transmitters 4, transmitting alarms for various methods of penetration of the hijacker into the garage). If the received alarm signal coincides with one of the valid alarms, then the decoder 6 issues a control pulse to the controlled relay 7. During this pulse, the controlled relay 7 is activated (that is, a normally closed relay opens or a normally open relay closes). The operation of the controlled relay 7 monitors the sensor 8 of unauthorized exposure to the vehicle. When the managed relay 7 is activated, the sensor 8 of unauthorized exposure to the vehicle generates a signal to the additional input of the control unit 9. Based on this signal, the control unit 9 generates commands for triggering an alarm and blocking the functional organs of the vehicle (in order not to overload the picture, the alarm nodes the functional organs of the vehicle are not shown in the diagram). According to these commands, the nodes 14 blocking the functional organs of the vehicle are prepared for operation.

 An example of a specific use of a controlled relay 7 may be its connection in series with the driver's door limit switch. In this case, the sensor 8 of unauthorized exposure to the vehicle will be the position sensor of the driver’s door, which is part of any standard vehicle protection system. For this example, the operation of a controlled relay 7 during an invasion of the garage will be sensed by the sensor 8 of unauthorized exposure to the vehicle is completely similar to the short-term (for several seconds) unauthorized opening of the driver's door on the guarded vehicle.

 Turning on the ignition switch 16 provides the supply of power from the bus 15 of the on-board power supply network to the prepared for operation units 14 for blocking the functional bodies of the vehicle, and in each of the units 14 the delay time begins.

 The signal from the sensor 8 of unauthorized exposure to the vehicle in the control unit 9 also generates a sequence of request signals sent to the portable transceiver 10, which is one of the components of the site 11 for setting the vehicle radio protection mode. After receiving the request signals from the control unit 9, the transportable transceiver 10 sequentially sends the request signals to the electronic tag 12, which is another component of the vehicle radio mode setting unit 11 and must be owned by the vehicle owner or an authorized person thereof.

 It should be noted that the control unit 9 generates request signals supplied to the transportable transceiver 10, not only by signals from the sensor 8 of unauthorized exposure to the vehicle, but also, for example, after closing the ignition switch 16. That is, the request signal cycle repeats after ignition of the vehicle.

 Thus, if the owner of the vehicle or his authorized person entered the garage (as well as if the owner of the vehicle or his authorized person turned on the ignition of the vehicle), then the request signal from the transportable transceiver 10 will go to one of the electronic tags 12 located in them, which are part of the unit 11 tasks of the vehicle radio protection mode.

 Upon receipt of the request signal from the transportable transceiver 10, the electronic tag 12 gives the transportable transceiver 10 a special unlock and inhibit alarm code. This code is demodulated in the transportable transceiver 10 and transmitted to the control unit 9. After the special unlock and prohibition code of the alarm signal arrives at the control unit 9, it compares the received special code with valid codes (in general, there may be a whole set of valid codes corresponding to the owner and several authorized persons, each of which has its own electronic tag 12 with a unique special unlock and prohibition code for the alarm s). If the received special code coincides with one of the valid codes, the system considers it established that the owner or authorized person is present near the protected vehicle (the hijacker, of course, may have an electronic tag with him, but its special unlock code cannot match any of the valid ones). After the fact of the presence of the owner or the person authorized by him has been established, the control unit 9 issues to the internal communication channel 13, combining the inputs of all the nodes 14 of the blocking of the vehicle’s functional bodies, a local unlock and prohibition alarm code (in general, different from the special code issued by electronic tag 12 )

 As an internal communication channel 13, either a radio channel or an on-board power supply network, through which a frequency-modulated signal is transmitted, can be used. And in fact, and in another case, special wires are not required and it is almost impossible to detect, in particular, the nodes 14 of blocking the functional organs of the vehicle during external inspection.

 Common to all nodes 14 blocking the functional organs of the vehicle is that they are supplied with power from the power supply unit (battery) via the power bus 15 after the ignition is turned on, that is, when the ignition switch 16 is closed.

 In addition (as already mentioned), the closure of the ignition switch 16 initiates in the control unit 9 the process of generating a request for issuing an electronic tag code 12. This means that after a short pause after the ignition switch 16 is closed, a local unlock code is received in the internal communication channel 13 (if Of course, the closure of the ignition switch 16 was carried out by the owner of the vehicle, with an electronic tag 12).

 Consider the operation of the node 14 blocking the functional organs of the vehicle after the closure of the switch 16 ignition and power supply to each node 14 blocking the functional organs of the vehicle.

 When connecting power to the node 14 blocking the functional organs of the vehicle in this node is powered by each element included in it. Each of the nodes 14 blocking the functional organs of the vehicle contains a delay element. The duration of the delay to the operation in the alarm nodes and the blocking nodes is selected sufficient to receive the local unlock code and prohibit the alarm in the internal communication channel 13. If this local code matches the reference local code, which occurs when the owner (or a person authorized by him) closes the ignition switch 16, then the owner of the vehicle is recognized during the delay time of the signal by the delay element, and the vehicle functional unit blocking unit 14 forms on its output signal unlock this functional body of the vehicle.

 Thus, if the input of the transportable transceiver 10, which is part of the unit 11 for setting the vehicle radio protection mode, receives a signal from the electronic tag 12 located at the owner of the vehicle or at its authorized person, then the alarm nodes and the blocking nodes 14 of the vehicle’s functional organs do not work , and the owner can use his vehicle. The commands to start the alarm and block the functional organs of the vehicle can be removed manually (using the switch).

 This means that a protected vehicle can only be used for its intended purpose by the owner of the vehicle (or by its authorized person, for example, a driver). The receipt of an alarm signal from the built-in external protective structure 1, for example, in the garage case, sensor 2 of unauthorized impact on the external protective structure to the additional input of the control unit 9 until the signal from the electronic tag 12 of the vehicle owner or his authorized person is received by the transceiver 10 entire system into alarm mode. In this case, in any of the options for the implementation of the system, preparations are made for blocking the functional organs of the vehicle. In addition, various means of alarm (light, sound, radio) can be included.

 The owner of the vehicle can be broadcast alarms, as, for example, is provided for in the REEF NET family security systems (model R-402 / R-404 / R-405) that are commercially available by the applicant.

 It should be noted, however, that when the protection is disabled, the operation of the sensor 2 of unauthorized influence on the external protective structure does not have any effect on the vehicle. Indeed, suppose that security is disabled on the vehicle, after which the vehicle is taken out of the garage. If the garage door is closed and opened again, this will cause the formation of an alarm message by the stationary transmitter 4 with a built-in transmitting antenna. As a result of receiving this message by the portable receiver 5, the controlled relay 7 will operate within a short (several seconds) period of time. Such an operation is completely safe for the vehicle and when disarmed, it does not cause any additional alarm signals. For the above example, opening a closed garage for a sensor 2 of unauthorized exposure to a vehicle is completely analogous to a brief opening of the driver’s door, which is completely acceptable when the guard is removed.

 The specific implementation of the vehicle alarm system does not play a significant role for the present invention and, therefore, is not considered in detail in this application.

 The main feature of the claimed technical solution is that it implements the principle of layered protection of the vehicle from unauthorized exposure. Namely, when an attacker attempts to penetrate inside an external protective structure, for example, a garage, the first line of protection of the vehicle is activated, which includes an unauthorized sensor 2 for affecting the external protective structure, a coding unit 3 and a stationary transmitter 4 with a built-in antenna. As a result of this operation (if there is no unlock code for the portable transceiver 10 from the complete electronic tag 12, which, of course, the hijacker cannot have), the blocks of the radio security system located inside the vehicle are put into an alarm state, and blocking units 14 are prepared for start-up functional organs of the vehicle. The second line of protection of the vehicle provides confirmation of this readiness for operation in the event that the system does not recognize the owner of the vehicle or its authorized person. This greatly reduces the likelihood of vehicle theft, and this positive effect is achieved not by complicating the algorithm of the system and equipment, but due to the rational distribution of functions between the elements of the radio protection system installed inside the vehicle and on the external protective structure, for example, gates and walls of the garage.

 Thus, the combination of the essential features of the prototype device and the distinctive features of the claimed technical solution allows us to solve the problem - to increase the likelihood of protecting the vehicle from theft without significant complication, and therefore, the cost of the radiological protection system as a whole.

 The release of small-scale batches of the claimed radio security systems (models RF-40, RF-40A, RF-41) confirmed a significant increase in the effectiveness of protection with a slight increase in the cost of the radio security system.

Claims (3)

 1. A radio security system for a vehicle, comprising a control unit, the first input of which is connected to the on-board power supply bus via an ignition switch, and the first output and second input are connected to request and read an unlock code, respectively, with the input and output of the vehicle radio mode setting unit including an electronic tag and a portable transceiver connected by a radio channel, the input and output of which are respectively the input and output of the site of setting the radio protection mode t vehicle, the second output of the control unit through an internal communication channel connected to the inputs of the nodes of the blocking of the functional organs of the vehicle, and the voltage inputs of each node of the blocking of the functional organs of the vehicle are connected to the first input of the control unit, characterized in that as one of the elements an external protective structure, for example, a garage case, is used for the vehicle’s radiological protection system, while the system is connected in series internal sensors of unauthorized influence on an external protective structure, a coding unit and a stationary transmitter with an integrated transmitting antenna installed inside the external protective structure, as well as a portable receiver connected in series with each other, connected by radio to a stationary transmitter with an integrated transmitting antenna, a decoder, a controlled relay and a sensor of unauthorized influence on the vehicle, and the control unit is made with additionally input, which is connected to the sensor tampering vehicle.  2. The system according to p. 1, characterized in that the electronic tag is made in the form of a passive keyfob containing a wearable magnetic frame in series, a rectifier, an identification code generation unit using KeeLoQ technology and a transmitter with a built-in antenna, the second input of which is connected to the second output of the rectifier while the transportable transceiver contains a pump generator with a magnetic frame that provides inductive coupling with a wearable magnetic frame of a passive keyfob, and a HOOK-UP radio relay with normal but closed contacts, controlled by transmitter signals with built-in antenna.  3. The system according to claim 1, characterized in that the electronic tag is made in the form of an active keyfob containing a keyfob of the keyfob in series, an identification code generation unit using KeeLoQ technology and a transmitter with a built-in antenna, as well as an autonomous power source connected to the transmitter to the identification code generation unit, while the transportable transceiver is made in the form of a HOOK-UP radio relay with normally open contacts, controlled by the signals of the transmitter with built-in shadowy.

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