WO2004029393A1 - Systeme de securite pour vehicule et cle emettrice a laquelle est appliquee une fonction d'authentification radio - Google Patents

Systeme de securite pour vehicule et cle emettrice a laquelle est appliquee une fonction d'authentification radio Download PDF

Info

Publication number
WO2004029393A1
WO2004029393A1 PCT/JP2002/010115 JP0210115W WO2004029393A1 WO 2004029393 A1 WO2004029393 A1 WO 2004029393A1 JP 0210115 W JP0210115 W JP 0210115W WO 2004029393 A1 WO2004029393 A1 WO 2004029393A1
Authority
WO
WIPO (PCT)
Prior art keywords
vehicle
key
signal
wireless
predetermined
Prior art date
Application number
PCT/JP2002/010115
Other languages
English (en)
Japanese (ja)
Inventor
Toyoki Sasakura
Kikukazu Sakurai
Original Assignee
Toyoki Sasakura
Kikukazu Sakurai
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Toyoki Sasakura, Kikukazu Sakurai filed Critical Toyoki Sasakura
Priority to AU2002338116A priority Critical patent/AU2002338116A1/en
Priority to PCT/JP2002/010115 priority patent/WO2004029393A1/fr
Publication of WO2004029393A1 publication Critical patent/WO2004029393A1/fr

Links

Classifications

    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
    • G07C9/00—Individual registration on entry or exit
    • G07C9/00174—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys
    • G07C9/00309—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated with bidirectional data transmission between data carrier and locks
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
    • G07C9/00—Individual registration on entry or exit
    • G07C9/00174—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys
    • G07C9/00309—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated with bidirectional data transmission between data carrier and locks
    • G07C2009/00365—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated with bidirectional data transmission between data carrier and locks in combination with a wake-up circuit
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
    • G07C9/00—Individual registration on entry or exit
    • G07C9/00174—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys
    • G07C2009/00753—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated by active electrical keys
    • G07C2009/00769—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated by active electrical keys with data transmission performed by wireless means
    • G07C2009/00793—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated by active electrical keys with data transmission performed by wireless means by Hertzian waves

Definitions

  • the present invention relates to a vehicle security system and a wireless key having a wireless authentication function applied thereto.
  • the present invention relates to a vehicle security system and a vehicle key having a wireless authentication function applied thereto.
  • BACKGROUND ART In recent years, improvements have been actively made to enhance the convenience for drivers and passengers of passenger vehicles. As one of them, a wireless key system that controls opening and closing of a vehicle door by non-contact communication between a key and the vehicle has been introduced.
  • One form of such a wireless key system is a one-way communication system that emits an infrared signal or a radio signal from a key held by a user and opens and closes a door when a control means provided on the vehicle detects the signal.
  • a control means provided on the vehicle detects the signal.
  • a two-way communication system that controls the opening and closing of doors by issuing signals from both directions on the vehicle side and the key side of the user and performing mutual authentication.
  • a device mounted on a vehicle continuously performs an operation of detecting a signal emitted from the wireless key.
  • an inquiry signal is constantly transmitted to both the vehicle side and the wireless key side in order to detect the timing at which the signal can be exchanged with the wireless key continuously while the vehicle is in progress and while the vehicle is parked. Is necessary.
  • a first aspect of the vehicle security system that achieves the above object is a wireless key that generates a key transmission pulse, and is provided on the vehicle side, searches for the key transmission pulse at a predetermined cycle, and And vehicle control means for performing predetermined control on the vehicle when authentication is established between the wireless key and the wireless key.
  • the wireless key generates and transmits a predetermined number of the key transmission pulses when there is vibration with respect to the key body.
  • the vehicle control means includes: when the identification signal of the wireless key is a predetermined identification signal; It is characterized in that predetermined control is possible.
  • a fourth aspect of the vehicle security system according to the present invention that achieves the above object is, in the third aspect, characterized in that the predetermined control for the vehicle is a control for opening and closing a door of the vehicle. I do.
  • the predetermined control for the vehicle includes a control for enabling or disabling an engine start of the vehicle.
  • a sixth aspect of the vehicle security system that achieves the above object is a wireless key that generates a key transmission pulse, a plurality of detection means provided on the vehicle side for detecting the key transmission pulse, A key transmission path, which is provided on the vehicle side and is detected by any of the plurality of detection means, is searched at a predetermined cycle, and when authentication with the wireless key is established, predetermined control is performed on the vehicle.
  • Vehicle control means for performing the key transmission pulses when the key body is vibrated, and generating and transmitting a predetermined number of the key transmission pulses; and responding to the key transmission pulses from the vehicle side.
  • Receiving the identification signal, and when the identification signal matches a predetermined signal adds the identification signal of the wireless key to the key transmission pulse and transmits the key to the vehicle. Means.
  • a first aspect of the wireless key according to the present invention that achieves the above object is to form a vehicle security system with a vehicle having vehicle control means for searching for a key transmission pulse at a predetermined period and performing a predetermined control operation.
  • a vibration sensor that turns on a key trigger when there is a vibration to the key body, and generates a predetermined number of key transmission pulses when the key trigger from the vibration sensor is on.
  • power for driving the key body is supplied by a button battery.
  • a third aspect of the wireless key according to the present invention that achieves the above object is the wireless key according to the first aspect, wherein the vibration sensor includes: It consists of a mercury switch that is closed by the movement of the key holder.
  • a fourth aspect of the wireless key according to the present invention that achieves the above object is the wireless key according to the first aspect, wherein at least one key is set within a time period in which the vehicle control means searches for a key transmission pulse.
  • the number of key transmission pulses transmitted when the key trigger is turned on is set so that transmission pulses are detected.
  • FIG. 1 is a diagram illustrating a vehicle security system to which the present invention is applied.
  • FIG. 2 is a diagram showing an example in which the vehicle security system shown in FIG. 1 displays on a monitor a state in which a door is locked and a state in which an immobilizer control for disabling engine starting is turned on.
  • FIG. 3 is a configuration example of a wireless key to which the present invention is applied.
  • FIG. 4 is a block diagram of a detailed configuration example of a main control circuit block of the wireless key.
  • FIG. 5 shows a time chart of one embodiment in the search mode (when not riding).
  • FIG. 6 shows a time chart of one embodiment during boarding.
  • FIG. 7 is a block diagram showing a detailed configuration example of the integrated circuit chip 100. As shown in FIG.
  • FIG. 8 is a diagram showing a configuration of an embodiment of a main part of the vehicle control means on the vehicle 3 side related to the present invention.
  • FIG. 9 is a diagram illustrating an M-sequence signal.
  • FIG. 10 is a diagram illustrating a configuration example of the pulse compression processing in the coincidence / addition circuit.
  • FIG. 11 is a diagram illustrating the identification signal transmission timing and the response signal reception timing.
  • FIG. 12 is a diagram illustrating the determination of the signal level.
  • FIG. 13 is a diagram illustrating a change in the received signal level depending on the distance.
  • FIG. 14 shows an embodiment in which a plurality of doors are individually controlled using the wireless key 1 of the present invention.
  • FIG. 1 is a diagram illustrating a vehicle security system to which the present invention is applied.
  • two-way communication is performed between a wireless key 1 possessed by a user 2 and a vehicle 3 to be secured, which is a feature of the present invention.
  • the wireless key 1 detects that the distance from the vehicle is within a predetermined interval or exceeds a predetermined interval. In addition, authentication is performed between the vehicle 3 and the wireless key 1, and based on this, control such as opening and closing of a door is performed by control means provided in the vehicle 3.
  • FIG. 2 shows an immobilizer control that disables vehicle 3 engine starting when the door of vehicle 3 is locked as a result of two-way communication between wireless key 1 and vehicle 3 in FIG.
  • the state in which is set to ON is shown on the monitor 10.
  • the user 2 can easily confirm the security state when the vehicle 3 is parked.
  • FIG. 3 is a configuration example of a wireless key 1 to which the present invention is applied.
  • FIG. 3A is a conceptual perspective view of the wireless key 1 when viewed from the surface.
  • FIG. 3B is a perspective conceptual diagram when viewed from the side.
  • the wireless key 1 has a force shape with a width W, a thickness, and a length L, but may have an appropriate shape.
  • the main control circuit block 100 can be constituted by one integrated circuit chip.
  • a display panel 103 such as a liquid crystal display, an EL display, and the like are further provided with a vibration sensor 104 for detecting a movement vibration of the wireless key 1 as a feature of the present invention, and are integrally molded in a card shape.
  • the emergency spare key 105 is configured to be inserted into the card.
  • FIG. 4 is a block diagram showing a detailed configuration example of the main control circuit block 100.
  • the main control circuit block 100 an antenna element 106 not shown in FIG. 3 is connected to the transmission circuit 110 and the reception circuit 111 through the branch circuit 107.
  • the main control circuit block 100 includes a timer 112, a power control circuit 113, and a control circuit 114.
  • the power control circuit 113 is supplied with electric power from the battery 101, and the components of the main control circuit block 100 are supplied with power at the required time under the control of the power control circuit 113. You.
  • An ON / OFF switch 102 and a vibration sensor 104 serving as a trigger switch are connected to the power control circuit 113 as external elements of the main control circuit block 100.
  • the power control circuit 113 sets the control circuit according to the timing of the signal from the ON / OFF switch 102 and the vibration sensor 104, using the timing counted by the timer 112 as a reference clock.
  • the control circuit 114 controls the signal transmission from the transmission circuit 110 to the vehicle control means mounted on the vehicle 3 and receives and controls the response signal through the reception circuit 111 from the vehicle control means.
  • the control circuit 114 further has a function of controlling the display of the control result on the display panel 103.
  • the power consumption of the vehicle control means disposed on the vehicle 3 side and the wireless key 1 when configuring the vehicle security system will be examined.
  • the average permissible current consumption on the vehicle 3 side is specified by the Japan Industrial Association as a vehicle standard of 1 mA.
  • the peak current on the vehicle side during security operation requires 10 mA.
  • the operation duty of the vehicle control means disposed on the vehicle 3 side is assumed to be 1/10 and will be discussed below with reference to the time charts of FIGS.
  • FIG. 5 shows a time chart of the embodiment in the search mode (when not riding).
  • the reaction operation control period in the vehicle control means arranged on the vehicle 3 side is assumed to be 25 ms, and the operation cycle of the receiver of the vehicle control means (hereinafter simply referred to as the base receiver) is set to 250 ms. Then, a duty ratio of 1/10 is obtained (see Fig. 5a). As a result, even if the peak current required for the reaction operation control on the vehicle side is 10 mA, it is possible to conform to the vehicle standard where the average allowable current consumption is 1 mA.
  • the vibration sensor 104 of the wireless key 1 can be constituted by, for example, a mercury switch or the like, and can generate a trigger signal in response to a predetermined size of movement of a person holding the wireless key 1. Yes (see Figure 5b).
  • the power control circuit 113 drives the control circuit 114 during a predetermined period counted by the transmission / reception control timer 112 based on the trigger signal, and sends a key transmission pulse to the transmission circuit 110. Power is supplied so that transmission is possible.
  • control circuit 114 sets a predetermined number of key transmission pulses so that at least one key transmission pulse can be received during the operation period (25 ms) of the pace receiver operation period of 250 ms.
  • control is performed so as to transmit 20 key transmission pulses at a period of 12.5 ms (see FIG. 5C).
  • FIG. 5d is an expanded view of the key transmission pulse (FIG. 5c) during the operation period of the base receiver (25 ms).
  • the pulse width of one key transmission pulse has a size of 1.5 ms, and a spreading code (M string: Maximum length sequence signal) is used to identify each wireless key. Is completed.
  • M string Maximum length sequence signal
  • the base receiver receives a key transmission pulse during its operating period (25 ms).
  • the identification signal ID of the vehicle control means of the vehicle 3 is added, and a base response transmission pulse is transmitted from the transmission circuit 110 through the antenna 106 (see FIG. 5e).
  • the wireless key 1 enters the standby state during the key transmission pulse width during the key transmission pulse transmission period (see Fig. 5f). If there is no response from the pace receiver during this standby period, power is not supplied to the receiving circuit 111 until the next standby state timing in the wireless key 1 o
  • the same identification signal ID is transmitted as an M-sequence signal (see Figs. 5g and 5d).
  • the correspondence between the wireless key 1 and the vehicle 3 can be established in the vehicle control means.
  • various controls of the vehicle can be performed based on the control signal from the vehicle control means of the vehicle 3. For example, if the door of the vehicle 3 is in the open state, the state is shifted to the locked state, and if the door is in the locked state, the state is controlled to shift to the open state.
  • the opening / closing control of the door is automatically performed on the condition that the correspondence between the wireless key 1 and the vehicle control means of the vehicle 3 is established on the vehicle 3 side, or on the condition that the correspondence is established. Furthermore, it is possible to control the wireless key 1 in response to pressing of the ON / OFF switch 102 by the holder.
  • control is performed by the vehicle control means so that the engine can be started.
  • the state in which the key trigger in the wireless key 1 is turned on is one day.
  • the average was 300 times.
  • the key transmission pulse when the key trigger becomes ⁇ N once is 20 transmissions with a pulse width of 1.5 ms. Therefore, the cumulative transmission time of the day is 9 seconds (0.0 0 25 Time).
  • the above calculations are the battery life characteristics when the vehicle is not in use.
  • the wireless key 1 is held even when the vehicle 3 gets on.
  • communication between the wireless key 1 and the control means of the vehicle 3 is performed by a handshake.
  • the reception interpal of wireless key 1 during handshake is set to 2 seconds (see Fig. 6a), and the transmission / reception gate time is set to 10ms (see Fig. 6c).
  • the wireless key 1 according to the present invention applied to the vehicle security system can use a general button battery and obtain a service period exceeding 3 years in practical use.
  • FIG. 7 is a block diagram showing a detailed configuration example of the integrated circuit chip 100.
  • the transmission circuit 110 has a transmitter 110 b for transmitting an identification signal including a preset unique code signal from a transmission antenna 106 T, and the reception circuit 111 is provided on the vehicle 3 side. And a receiver 111a for receiving, via a receiving antenna 106R, an acknowledgment signal returned from the transmitter of the vehicle control means.
  • the transmission circuit 110 converts the identification signal set in the identification code memory 114 d in the control circuit 114 into an M-sequence signal based on the evening output of the transmission / reception control timer 112. After the FSK modulation circuit 110a performs FSK modulation with a carrier, the transmitter 110b transmits the key transmission pulse (see FIG. 5d) described above with reference to FIG.
  • the power control circuit 1 13 a of the power control circuit 113 closes the switch 113 b at the output timing of the transmission / reception control timer 112 to supply power from the battery 101 to each part. Control.
  • the receiving circuit 111 that receives the base response transmission pulse includes a receiver 111a and the following components and is connected to the receiver.
  • the received base response transmission pulse is subjected to FSK demodulation by the three demodulation circuits 111b and sent to the matching and adding circuit 114c in the control circuit 114.
  • the match / addition circuit 114c reads the identification signal stored in advance in the identification code memory 114d, and the identification signal transmitted from the vehicle 3 by the base response transmission pulse is used as the identification code. It is determined whether or not it matches the identification signal stored in the memory 114d. For this purpose, the match-addition circuit 114c performs a process of adding a match point for each bit of the identification signal. The output signal subjected to the addition processing is supplied to the threshold processing section 114f.
  • the threshold processing unit 114f compares the output signal from the match / addition circuit 114c with a threshold (threshold value) preset in the threshold setting unit 114e, and outputs the output signal. If the value exceeds the threshold, the timing signal is sent to the signal presence / absence determination unit 1 1 4b.
  • the identification signal received by the receiver 1 Also sent to 1 1 4a. Then, a signal representing the signal level detected by the signal level detection circuit 114a is sent to the signal presence / absence determination section 114b.
  • the identification signal from the FSK demodulation circuit 111b and the identification code signal from the identification code memory 114d are also input to the signal presence / absence determination section 114b.
  • the signal presence / absence determination unit 114b determines whether the base response transmission pulse (Fig. 5e) matches the discrimination code signal, and outputs the timing signal from the threshold processing unit 114f. After receiving the signal, it is determined whether the signal level of the identification signal of the base response transmission pulse received within a predetermined time is equal to or higher than a predetermined value.
  • the signal presence / absence determination unit 114b adds the wireless key 1's own identification signal to the key transmission pulse and transmits it to the vehicle 3 when both of these two determinations are satisfied (see Fig. 5d). In particular, it controls the reading of the identification signal from the identification code memory 114d.
  • FIG. 8 shows an embodiment of a main part of the vehicle control means of the vehicle 3 related to the present invention.
  • This vehicle control means is substantially the same as the structure of the integrated circuit chip 100 of the wireless key 1 shown in FIG. 7, but is slightly different in some respects.
  • the different parts will be mainly described.
  • the signal presence / absence determination section 302b determines whether or not the signal sent from the wireless key 1 is present.
  • the identification code memory 3 By accessing 02b, the identification signal ID stored in the vehicle 3 is transmitted as a base response transmission pulse to the wireless key 1 by the transmission circuit 305 (FIG. 5e).
  • the opening / closing control signal generating section 303 determines whether or not the wireless key 1 matches the identification signal of the wireless key 1 added to the key transmission pulse from the wireless key 1 (see FIG. 5d) by the signal presence / absence determining section 302 b. When it is detected, an open / close control signal is generated and used for controlling the opening / closing of the vehicle door. Such a point has no direct relation to the features of the present invention, and further description is omitted.
  • the power of the power supply section 304 is controlled by the transmission / reception control timer 303 so that it operates during the periodical ON period of the pace receiver shown in FIG. As described above, the signals are supplied to the corresponding circuit components. Thereby, in connection with the object of the present invention, it is possible to reduce the power consumption also on the vehicle 3 side.
  • the identification signal from the wireless key 1 is a signal including a preset unique code signal, and this identification signal is an M-sequence (Maximum length). null key) signal followed by a unique code signal for wireless key 1 (hereinafter simply referred to as a unique code signal).
  • the M sequence signal may be a C / A code, a P code, a linear FM signal, or the like.
  • the unique code signal may be a signal indicating information of the owner and the manager.
  • a pulse compression signal B is obtained as shown in FIG. 9 for explaining the M-sequence signal.
  • the M-sequence signal which is the input signal, is subjected to 1/31 signal compression.
  • the identification signal ID is transmitted from the vehicle control means and received by the wireless key 1 (see FIG. 5e). Based on this, the same signal is added to the key transmission pulse as a confirmation identification signal ID after a lapse of a certain time from the wireless key 1 and sent back to the vehicle 3 (see Fig. 5d).
  • FIG. 10 shows a configuration example of the pulse compression processing in the matching and adding circuit 114c of the key 1. The same applies to the operation of the coincidence / addition circuit 302c on the vehicle 3 side in FIG.
  • the leading M-sequence signal is temporarily recorded in the shift register 111c, not shown in Fig. 7.
  • the M-sequence signal written to this shift register 111c is sent to the matching / addition circuit 114c, where the M-sequence signal is stored in the identification code memory 114d. Is called, and it is compared whether both M-sequence signals match for each bit, and the number of matching bits is added.
  • the signal that has been subjected to the “matching” addition processing is output as a pulse compression signal.
  • the shift register 111c has a storage capacity of 31 bits, but the identification code memory 114d has an M-sequence signal (31 bits) and a unique code signal (29 bits). ), And has a storage capacity of 60 bits. Therefore, when processing both of the M-sequence signals, the data portion of the M-sequence signal is called.
  • a vibration sensor 104 detects the vibration of the wireless key 1 and immediately sets the transmission / reception control timer 112. This closes the switch 113b through the power control circuit 113a at each key transmission pulse time point (see Fig. 5c), and power is supplied from the battery 101 to each part.
  • the identification code memory 1 is issued by the instruction of the control timer 13a.
  • the identification signal ID is read from 14b, modulated by the FSK modulation circuit 110a, and then transmitted from the transmitter 110b via the transmission antenna 106T.
  • the transmission of the identification signal ID is performed by FSK-modulating the 31-bit M-sequence signal and the subsequent 29-bit unique code signal. If the transmission signal of the identification signal from the wireless key 1 is received at a predetermined level or more by the vehicle control means of the vehicle 3 and the identification signal is recognized by the vehicle 3 to be its own, the vehicle control is performed. The above identification signal The same transmitted signal as the signal is sent back to the wireless key 1 and received as a confirmation signal (Fig. 5d) o
  • the transmission and reception timings are as shown in (a) and (c) of FIG.
  • T ims transmission
  • T 2 ms transmission
  • T 3 ms lag time
  • T 3 ms T
  • the transmission timing is controlled by the control timer 13a. Is controlled.
  • the M-sequence signal of symbol A shown in Fig. 9 (a) is subjected to pulse compression processing, but the signal subjected to coincidence and addition processing is shifted as shown by symbol B.
  • the data of each bit is stored in the M-sequence signal storage data of the identification code memory.
  • the value of the pulse compression signal always fluctuates. However, if the data coincident with the M-sequence signal stored in the self-identification code memory 114d is written to the shift register 111c, the match-addition circuit 114c performs the coincidence addition processing.
  • the pulse compression signal becomes 31 and the M-sequence signal is a perfect match or at least a match. If the number of signals is 24 or more, both M-sequence signals can be regarded as coincident.
  • the threshold processing unit 114f sets the pulse compression processing signal to a threshold (threshold value) preset by the threshold setting unit 114e, for example, 24 or more. Is determined (see FIG. 9 (b)).
  • the threshold processing section 114d determines that the pulse compression processing signal exceeds the threshold, it outputs a timing signal as shown in FIG. 9 (c) to the signal presence / absence determination section 114b.
  • the signal level detection circuit 114a detects the signal level of the received signal received by the receiver 111a.
  • the signal presence / absence determining unit 114b determines whether or not the signal level is equal to or higher than a predetermined value. This signal level is determined by setting a certain voltage threshold for the received signal with the detection waveform shown in Fig. 12 (see Fig. 12a). If so, it is determined that a signal of a certain level or more has been received. As shown in Fig. 13 (a), when the signal R transmitted at a certain strength is received and the distance R between the wireless key 1 and the vehicle 3 increases, the above determination is made as the square of the distance. It is based on the fact that the received signal level decreases in inverse proportion. As one of the determination methods, the above-mentioned threshold value is determined corresponding to a predetermined distance (for example, lm).
  • Fig. 13 (a) is shown on a logarithmic scale. Instead of this determination method, the level of the received signal may be known by AZD converting the detection waveform of the received signal and measuring the voltage level of the received signal.
  • the determination of the signal level is based on a certain time t (corresponding to the eigencode signal to be received later) in which the timing signal after the threshold processing for the M-sequence signal is transmitted from the threshold processing unit 302f. In the example, it is performed only for 1.5 ms). The reason is that noise and signal levels from other wireless keys are not detected, and the judgment can be made accurately by using the fixed time specified by the evening signal as the judgment section. It is.
  • the determination by the signal presence / absence determination section 302 b is performed in addition to the determination of the signal level described above, in which the unique code signal received after the evening timing signal is input and FSK modulated is stored in the identification code memory 302 d.
  • the unique code signal received after the evening timing signal is input and FSK modulated is stored in the identification code memory 302 d.
  • the timing signal is input to the signal presence / absence determination section 302b.
  • the signal presence / absence determination section 302b determines that a received signal of a predetermined level is received for a predetermined time after receiving the evening timing signal, and that the received unique code signal matches its own unique code signal. Then, the vehicle control means on the vehicle 3 side exists within a predetermined distance from the wireless key 1.
  • the wireless key 1 and the vehicle 3 are separated by a certain distance or more.
  • the signal presence / absence determination unit 302b Based on such a determination, the signal presence / absence determination unit 302b outputs mutually opposite control signals when the wireless key 1 exists within a predetermined distance and when it does not exist.
  • the open / close control signal generating section 303 On the basis of the control signal from the signal presence / absence determining section 302 b, the open / close control signal generating section 303 outputs a door open / close control signal. Based on the door opening / closing control signal, the door is opened / closed in the vehicle 3 by a circuit (not shown).
  • FIG. 14 shows an embodiment in which a plurality of drivers D1 to D5 are individually controlled using the wireless key 1 of the present invention.
  • Antenna elements 301 to 300 of doors D1 to D5 corresponding to the common vehicle control means 300 mounted on the side of vehicle 3 are arranged. Therefore, bidirectional communication is performed with any of the antenna elements 301 to 305 closest to the wireless key 1.
  • the identifier ID added to the base response transmission pulse shown in Fig. 5e includes the number of the corresponding door, and the target door to be controlled is specified.
  • an embodiment of the present invention provides a vehicle security system in which battery consumption in a vehicle and a wireless key is reduced according to the present invention. It is possible to provide a vehicle key having a wireless authentication function and a wireless authentication function applied thereto.

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Lock And Its Accessories (AREA)

Abstract

L'invention porte sur un système de sécurité pour véhicule destiné à réduire la consommation de courant d'une batterie du véhicule et d'une clé émettrice. Le système de sécurité pour véhicule comprend un dispositif de commande ménagé sur la côté du véhicule et permettant de rechercher une impulsion de déclenchement à un intervalle de temps prédéfini et d'effectuer une opération de commande prédéterminée vers le véhicule, la clé émettrice étant destinée à générer le signal de déclenchement. La clé émettrice comprend un générateur et un émetteur d'impulsions de déclenchement d'un nombre prédéfini lorsque le corps de la clé oscille, et un dispositif destiné à recevoir un signal d'identification en réaction à l'impulsion de déclenchement provenant du véhicule, à additionner le signal d'identification de la clé émettrice à l'impulsion de déclenchement et l'envoyer au véhicule lorsque le signal d'identification correspond à un signal prédéfini.
PCT/JP2002/010115 2002-09-27 2002-09-27 Systeme de securite pour vehicule et cle emettrice a laquelle est appliquee une fonction d'authentification radio WO2004029393A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
AU2002338116A AU2002338116A1 (en) 2002-09-27 2002-09-27 Vehicle security system and wireless key having wireless authentication function applied thereto
PCT/JP2002/010115 WO2004029393A1 (fr) 2002-09-27 2002-09-27 Systeme de securite pour vehicule et cle emettrice a laquelle est appliquee une fonction d'authentification radio

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2002/010115 WO2004029393A1 (fr) 2002-09-27 2002-09-27 Systeme de securite pour vehicule et cle emettrice a laquelle est appliquee une fonction d'authentification radio

Publications (1)

Publication Number Publication Date
WO2004029393A1 true WO2004029393A1 (fr) 2004-04-08

Family

ID=32040324

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2002/010115 WO2004029393A1 (fr) 2002-09-27 2002-09-27 Systeme de securite pour vehicule et cle emettrice a laquelle est appliquee une fonction d'authentification radio

Country Status (2)

Country Link
AU (1) AU2002338116A1 (fr)
WO (1) WO2004029393A1 (fr)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07113364A (ja) * 1993-10-20 1995-05-02 Mitsubishi Cable Ind Ltd トラック荷台扉用リモートロック装置
JPH1046891A (ja) * 1996-05-24 1998-02-17 Trw Inc 低電力消費の携帯用送受信機を用いた無鍵乗車システム
JPH10155187A (ja) * 1996-11-22 1998-06-09 Omron Corp 受信装置及びリモートコントロールシステム
JP2000045589A (ja) * 1998-07-28 2000-02-15 Mazda Motor Corp キーレスエントリシステム及びその施解錠制御方法
JP2000145221A (ja) * 1998-11-06 2000-05-26 Shiroki Corp 自転車用施錠装置
JP2002213124A (ja) * 2001-01-15 2002-07-31 Tokai Rika Co Ltd 車両用施解錠装置

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07113364A (ja) * 1993-10-20 1995-05-02 Mitsubishi Cable Ind Ltd トラック荷台扉用リモートロック装置
JPH1046891A (ja) * 1996-05-24 1998-02-17 Trw Inc 低電力消費の携帯用送受信機を用いた無鍵乗車システム
JPH10155187A (ja) * 1996-11-22 1998-06-09 Omron Corp 受信装置及びリモートコントロールシステム
JP2000045589A (ja) * 1998-07-28 2000-02-15 Mazda Motor Corp キーレスエントリシステム及びその施解錠制御方法
JP2000145221A (ja) * 1998-11-06 2000-05-26 Shiroki Corp 自転車用施錠装置
JP2002213124A (ja) * 2001-01-15 2002-07-31 Tokai Rika Co Ltd 車両用施解錠装置

Also Published As

Publication number Publication date
AU2002338116A1 (en) 2004-04-19

Similar Documents

Publication Publication Date Title
US5736935A (en) Keyless vehicle entry and engine starting system
US5838257A (en) Keyless vehicle entry system employing portable transceiver having low power consumption
US6323566B1 (en) Transponder for remote keyless entry systems
KR100248458B1 (ko) 위상지연을갖는원격자동차도어개폐시스템용의휴대용송수신기
US8633797B2 (en) Rolling code security system
JP3712834B2 (ja) キーレスエントリー装置
US5583486A (en) Security access arrangement
EP0848123B1 (fr) Système télécommandé d'entrée sans clé
JP2000104429A (ja) 車載機器遠隔制御装置
JPH0347382B2 (fr)
JPH0457979B2 (fr)
JP4362136B2 (ja) 車両用電子キー装置
CN107067685A (zh) 使用用于轮询信号的不同类型的载波的遥控系统
US6882268B2 (en) Method for keyless unlocking of an access door to a closed space
JP2002021386A (ja) 電波式キーシステム
US5677680A (en) Transmitting and receiving-apparatus for vehicle, having mode setting means
WO2004029393A1 (fr) Systeme de securite pour vehicule et cle emettrice a laquelle est appliquee une fonction d'authentification radio
JP4474683B2 (ja) スマートキーレスシステム
JPH09279917A (ja) キーレスエントリ装置
JP4414566B2 (ja) 自動車のドアロック制御システム
JP2001040921A (ja) スマートエントリシステム
JPH09144411A (ja) キーレスエントリ装置
JPS60159265A (ja) 携帯型無線伝送機
JP4375096B2 (ja) 車載機器制御システム用の携帯機
JPH05311935A (ja) 車両用送受信装置のモード設定方法

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BY BZ CA CH CN CO CR CU CZ DE DK DM DZ EC EE ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NO NZ OM PH PL PT RO RU SD SE SG SI SK SL TJ TM TN TR TT TZ UA UG US UZ VC VN YU ZA ZM ZW

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): GH GM KE LS MW MZ SD SL SZ TZ UG ZM ZW AM AZ BY KG KZ MD RU TJ TM AT BE BG CH CY CZ DE DK EE ES FI FR GB GR IE IT LU MC NL PT SE SK TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG

121 Ep: the epo has been informed by wipo that ep was designated in this application
122 Ep: pct application non-entry in european phase
NENP Non-entry into the national phase

Ref country code: JP

WWW Wipo information: withdrawn in national office

Country of ref document: JP