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EP0535555A1 - Technique de programmation pour système de télécommande de véhicules - Google Patents

Technique de programmation pour système de télécommande de véhicules Download PDF

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Publication number
EP0535555A1
EP0535555A1 EP92116460A EP92116460A EP0535555A1 EP 0535555 A1 EP0535555 A1 EP 0535555A1 EP 92116460 A EP92116460 A EP 92116460A EP 92116460 A EP92116460 A EP 92116460A EP 0535555 A1 EP0535555 A1 EP 0535555A1
Authority
EP
European Patent Office
Prior art keywords
code
receiver
ignition
vehicle
transmitter
Prior art date
Legal status (The legal status 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 status listed.)
Withdrawn
Application number
EP92116460A
Other languages
German (de)
English (en)
Inventor
Scott T. Christians
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Motorola Solutions Inc
Original Assignee
Motorola Inc
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 Motorola Inc filed Critical Motorola Inc
Publication of EP0535555A1 publication Critical patent/EP0535555A1/fr
Withdrawn legal-status Critical Current

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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
    • G07C9/00817—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys where the code of the lock can be programmed
    • 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
    • G07C9/00182—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated with unidirectional data transmission between data carrier and locks
    • G07C2009/00206—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated with unidirectional data transmission between data carrier and locks the keyless data carrier being hand operated
    • 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
    • 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
    • G07C2209/00—Indexing scheme relating to groups G07C9/00 - G07C9/38
    • G07C2209/08—With time considerations, e.g. temporary activation, valid time window or time limitations

Definitions

  • This invention is directed to the field of automotive remote control systems of the type wherein a user can employ a handheld transmitter to send a signal to a receiver mounted within a vehicle to cause some function of the vehicle to be controlled remotely, such as to disarm a security device within the vehicle, or to unlock the doors of the vehicle.
  • Typical remote control systems include at least one handheld transmitter (RF or infrared) that can transmit a unique code to a receiver mounted in a vehicle.
  • RF or infrared RF or infrared
  • the receiver responds to the transmitted code by locking or unlocking the vehicle's doors. It may also turn on an interior light or perform various other functions.
  • a user may want to program his receiver to be responsive to the different codes of two or more transmitters so that two or more members of his family may unlock the doors of the same vehicle, each using his/her own transmitter having its own unique code.
  • a receiver's ability to be easily reprogrammed by the end-user is thus very desirable, but conventional systems employ programming techniques that are not totally compatible with this desired result.
  • Typical keyless entry systems use several techniques to insure that a vehicle's transmitter and receiver operate on the same code.
  • the receiver and its mating transmitter are programmed together at the factory with the same code. The means that both components must remain together in route to the end customer. If the end-user needs additional transmitters, they must be specially ordered to ensure that they match the receiver.
  • Another programming technique used principally by automobile manufacturers, is to include a keypad on the exterior surface of a vehicle's door such that entry of a unique code by the user allows the keyless entry system to go into a programming mode in which the user can program the receiver to accept a code already programmed into the user's transmitter.
  • a disadvantage of this technique is the requirement for a keypad mounted on the vehicle, and a relatively small number of vehicles come so equipped.
  • a third programming technique requires that a "programing wire" be connected to the vehicle's battery or ground system to put the receiver into the programming mode. Since many users cannot or will not go to the trouble of finding the "programming wire” and coupling it to the appropriate electrical potential, this technique is somewhat impractical. Consequently, such users are unable to change transmitters or to add additional transmitters to their keyless entry system.
  • the illustrated remote control system includes a transmitter 10 and a receiver 12.
  • the transmitter 10 is normally a small, handheld transmitter that can emit a coded RF (or IR) signal for causing the door of a vehicle to be locked or unlocked, or to control any other function of the vehicle.
  • the illustrated transmitter includes conventional components such as a microcomputer 14 powered by a battery 16. Coupled to the microcomputer is a keypad 18 that is accessible to the user. A number of push-buttons are included on the keypad, including an "unlock" button 20. Other buttons (not shown) may also be included, such as a "lock” button for causing the vehicle's doors to be locked.
  • the microcomputer 14 When an operator wishes to unlock the door or doors of his vehicle, he presses the "unlock” button 20, whereupon the microcomputer 14 outputs a coded signal that includes the operator's security code (sometimes called an "ID"), and another code representing the "unlock” command.
  • This coded signal is received by an oscillator circuit 22 which provides a RF signal that is modulated by the coded signal from the microcomputer 14.
  • the coded RF signal is transmitted by an output device 24 to the receiver 12 which is normally installed within the operator's vehicle.
  • the coded RF signal is received by an input device 26 (such as an antenna) which supplies the RF signal to a detect/decode unit 28.
  • the unit 28 detects and decodes the codes embedded in the RF signal, and passes the decoded codes to a microcomputer 30.
  • the latter device is powered by a power supply 32 which may be the vehicle's battery.
  • the microcomputer 30 When the microcomputer 30 recognizes that a valid security code (ID) has been received, and that a door "unlock” code has been received, it actuates a door lock mechanism 34 for unlocking the doors off the vehicle.
  • An output terminal 36 may be included to send a signal for controlling other vehicle functions in response to other corresponding codes having been sent by the transmitter 10. The operation described thus far is conventional.
  • the microcomputer 30 in the receiver 12 is programmed to operate in accordance with the following reprogramming technique.
  • the vehicle's ignition unit 38 is turned on (as with a conventional ignition key), and that event is sensed by the microcomputer 30 via an input lead 40 which connects to the ignition unit.
  • a programming window for the receiver 12 is opened.
  • This programming window is a time period during which the microcomputer 30 allows the receiver 12 to be reprogrammed to receive a new and/or different security code, and this programming window has a time duration T1 (e.g. 15 seconds) that is measured from ignition turn-on.
  • T1 e.g. 15 seconds
  • a transmitter (such as transmitter 10) is used to initiate the transmission of a new code from the transmitter to the receiver, and the transmission of this code continues for at least a predetermined time duration T2 (e.g. 5 seconds).
  • this transmission is caused by the operator pressing the "unlock" button 20 on his transmitter's keypad and holding that button down for the duration T2. This causes the new security code to be transmitted along with an "unlock" code that continues for a duration T2.
  • the received security code is at least temporarily stored in a memory (not shown) of the microcomputer 30 for use as a new code to which the receiver will be responsive for controlling at least one vehicle function (e.g. actuating the door lock mechanism 34).
  • the receiver 12 acknowledges proper receipt of the coded transmission by twice actuating the door lock mechanism 34. This gives a visual and/or audible signal to the operator that the receiver 12 acknowledges receipt of a new and/or different security code which the receiver is to be responsive to.
  • the security code received during the open programming window is stored permanently in a memory of the microcomputer 30 only if the ignition unit 34 is turned off within another predetermined time interval T3 (e.g. 15 seconds) following receipt of the code. If the ignition unit 38 is not turned off within the time interval T3, the security code received during the open programming window is cancelled. This prevents codes that are inadvertently received from being stored in memory.
  • Another preferable aspect of this technique is that a security code that has been previously stored in a permanent memory is cancelled in response to at least one newly received security code being permanently stored. This allows an operator to make the receiver responsive only to a new or different security code and to prevent a previously stored code from being used by another operator. This might arise, for example, in the case where the operator's original transmitter has been lost and he wishes to reprogram the receiver to be responsive to the security code of a replacement transmitter, and to be unresponsive to the security code associated with the lost transmitter.
  • This flow chart represents a preferred technique for programming the receiver's microcomputer 30.
  • main process is the part of the program in the microcomputer 30 that processes incoming code, determines whether the received security code is valid, and otherwise controls all non-programming functions of the receiver 12. It will be assumed that the receiver has already received a security code that matches a stored code, thus determining that the received security code is valid.
  • the reprogramming part of the microcomputer's program begins with an instruction 42 which asks if the ignition unit 38 has just been turned on. If the answer to this inquiry is "yes”, the program proceeds to instruction 44 for causing a timer T1 to start. This timer begins timing the period immediately following ignition turn-on and signifies the opening of the programming window. As will be shown in the program below, the timer T1 terminates 15 seconds after having been started, thereby providing a 15 second window in which the operator may reprogram the receiver.
  • the next instruction 46 asks whether a transmission has been received from the transmitter. If the answer is "no", the program proceeds to instruction 48 so that the microcomputer 30 can continue the main process, following which the program can proceed again to instruction 42 to once again look for ignition turn-on.
  • Instruction 54 asks whether the time period T1 is greater than 15 seconds. In other words, "has the reprogramming window expired?" If the answer is “no", this indicates that reprogramming is still possible and the program proceeds to the next instruction 56. If the answer to the question posed by instruction 54 had been "yes”, meaning that the reprogramming window had expired, then the program would have proceeded to instruction 58 which causes the microcomputer 30 to set a timer T3 for greater than 15 seconds. As will be shown, this has the effect of rejecting the last-received security code.
  • the program will continue with instruction 56 which asks if more than four programming codes (i.e., security codes) have been received.
  • the point of this instruction is to ensure that no more than four (or any other predetermined number of codes) can be programmed into the receiver. If more than four codes have been received, the program proceeds to instruction 58 to again set the timer T3 to more than 15 seconds and thereby reject all the received security codes.
  • the program proceeds from instruction 56 to instruction 60 to start the timer T3 (which is used to determine how much time has passed since receipt of the last transmitted code) and to restart the timer T1 (to open another 15 second programming window). From there the program proceeds to instruction 62 which causes the door locks to be cycled twice by actuating the door lock mechanism 34 (FIG. 1). This provides an audible and/or visual acknowledgement of the fact that the receiver has been properly programmed with the security code that has just been sent by the operator. The next instruction 64 causes this security code to be placed in temporary memory.
  • the program then continues back through instruction 48 (FIG. 2A) and then to instruction 42. Assuming that the ignition has not been just turned on, the program will proceed then to instruction 50 to determine whether the ignition has just been turned off. If it has been just turned off, the next instruction 66 asks whether the timer T3 is greater than 15 seconds. If the answer is "no" this indicates that ignition turn-off occurred within 15 seconds following receipt of the last code, and that the operator desires the receiver to be responsive to this new security code (recall that the timer T3 was started by instruction 60). Then the program proceeds to instruction 68 which causes the received code to be moved into a permanent memory from the microcomputer's temporary memory. The codes previously stored in the permanent memory are cancelled. Thus, the microcomputer 30 has been reprogrammed with a new security code.
  • instruction 68 will be skipped, meaning that the received security code will not be placed in permanent memory. Rather, the program proceeds from instruction 66 to instruction 46 and from there it loops through the program again, ignoring the received security code.
  • time T3 was set to exceed 15 seconds per instruction 58 (FIG. 2B). This occurred when 1) the timer T1 exceeded 15 seconds, meaning that the programming window had expired, or 2) more than four codes were received. Setting the timer T3 to a time greater than 15 seconds ensures that any security code(s) received under conditions 1) or 2) above gets rejected when the program reaches instruction 66.
  • Another event that is handled by the program is the receipt of an "unlock" signal that is intended only to unlock the doors (not to reprogram the receiver). This event is handled by instructions 52, 70 and 72 (FIG. 2B). If the execution of instruction 52 results in determining that the transmission of the "unlock” code lasted less than 5 seconds, then the program proceeds to instruction 70 to determine whether the received security code matches a stored security code. If no match is detected, the program ignores the code and returns to instruction 48 to loop through the program. If a match is detected, the program proceeds to instruction 72 to perform the function associated with the received "unlock” code, or to perform the function associated with any other non-security code that was received.
  • the present technique for reprogramming the receiver is operator-friendly, while also avoiding the problem of unintentionally making the receiver responsive to an undesired code.
  • This technique also provides an easily implemented technique (cycling the door locks) for telling the operator that a transmitted code has been properly received and stored.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Lock And Its Accessories (AREA)
EP92116460A 1991-10-04 1992-09-25 Technique de programmation pour système de télécommande de véhicules Withdrawn EP0535555A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US77083391A 1991-10-04 1991-10-04
US770833 1991-10-04

Publications (1)

Publication Number Publication Date
EP0535555A1 true EP0535555A1 (fr) 1993-04-07

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Application Number Title Priority Date Filing Date
EP92116460A Withdrawn EP0535555A1 (fr) 1991-10-04 1992-09-25 Technique de programmation pour système de télécommande de véhicules

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Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0635408A1 (fr) * 1993-07-22 1995-01-25 GEMINI ELETTRONICA s.r.l. Système anti-vol pour véhicules
DE4407966A1 (de) * 1994-03-10 1995-09-14 Valeo Borg Instr Verw Gmbh Elektronisches Code-Schloß, insbesondere zum Deaktivieren einer Kraftfahrzeug-Wegfahrsperre
FR2729777A1 (fr) * 1995-01-25 1996-07-26 Plumer Sa Dispositif de commande a distance par ondes hertziennes, infra-rouges ou analogues, de systemes de fermeture motorises
WO1996032307A1 (fr) * 1995-04-14 1996-10-17 Flick Kenneth E Systeme de telecommande destine a un vehicule et dote d'une capacite de verification d'un tele-emetteur
FR2738587A1 (fr) * 1995-09-08 1997-03-14 Kiekert Ag Procede de commande d'un dispositif de fermeture pour un vehicule automobile, muni d'un systeme de commande a distance ainsi que d'un transpondeur
GB2305211A (en) * 1995-09-07 1997-04-02 Reilor Ltd Security locking circuit
US5654688A (en) * 1995-04-14 1997-08-05 Omega Research And Development, Inc. Vehicle security system having enhanced remote transmitter security
FR2747817A1 (fr) * 1996-04-22 1997-10-24 Peugeot Systeme de programmation d'au moins un calculateur d'un systeme electronique embarque a bord d'un vehicule automobile
US5986571A (en) * 1996-03-25 1999-11-16 Flick; Kenneth E. Building security system having remote transmitter code verification and code reset features
US6037859A (en) * 1998-03-05 2000-03-14 Flick; Kenneth E. Vehicle security system including control switch mounted to window antenna unit and associated methods
US6073064A (en) * 1996-06-06 2000-06-06 Delphi Automotive Systems Deutschland Gmbh Device and process for limiting access to authorized users
US6150926A (en) * 1998-03-05 2000-11-21 Flick; Kenneth E. Vehicle security system including indicator mounted to window antenna unit and related methods
WO2001011170A1 (fr) * 1999-08-06 2001-02-15 Somfy Feinmechanik Und Elektrotechnik Gmbh Dispositif pour programmer et effacer des donnees d'un decodeur commande sans fil, en particulier d'un dispositif de commande pour le dispositif d'entrainement d'une porte de garage
US6480117B1 (en) 1995-04-14 2002-11-12 Omega Patents, L.L.C. Vehicle control system including token verification and code reset features for electrically connected token
US6801119B1 (en) 1998-03-04 2004-10-05 Omega Patents, L.L.C. Programmer for vehicle security systems and related methods
US7737820B2 (en) 1995-04-14 2010-06-15 Omega Patents, L.L.C. Remote control system for an access door having remote transmitter verification
CN102232273A (zh) * 2008-11-21 2011-11-02 法雷奥安全座舱公司 用于汽车的通信系统
CN110382311A (zh) * 2017-03-13 2019-10-25 大陆汽车有限公司 用于控制车辆的锁定元件的方法

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2580128A1 (en) * 1985-04-04 1986-10-10 Turatti Mario Device for controlling actuator means mounted on a vehicle
EP0212050A2 (fr) * 1985-06-07 1987-03-04 Audi Ag Procédé de codage
DE3625555A1 (de) * 1985-10-29 1987-04-30 Chamberlain Mfg Corp Vorrichtung zum betaetigen von garagentoren und dgl.
EP0385070B1 (fr) * 1989-02-24 1994-02-16 Daimler-Benz Aktiengesellschaft Système de commande à distance avec transmission de code à mots de code

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2580128A1 (en) * 1985-04-04 1986-10-10 Turatti Mario Device for controlling actuator means mounted on a vehicle
EP0212050A2 (fr) * 1985-06-07 1987-03-04 Audi Ag Procédé de codage
DE3625555A1 (de) * 1985-10-29 1987-04-30 Chamberlain Mfg Corp Vorrichtung zum betaetigen von garagentoren und dgl.
EP0385070B1 (fr) * 1989-02-24 1994-02-16 Daimler-Benz Aktiengesellschaft Système de commande à distance avec transmission de code à mots de code

Cited By (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0635408A1 (fr) * 1993-07-22 1995-01-25 GEMINI ELETTRONICA s.r.l. Système anti-vol pour véhicules
DE4407966A1 (de) * 1994-03-10 1995-09-14 Valeo Borg Instr Verw Gmbh Elektronisches Code-Schloß, insbesondere zum Deaktivieren einer Kraftfahrzeug-Wegfahrsperre
FR2729777A1 (fr) * 1995-01-25 1996-07-26 Plumer Sa Dispositif de commande a distance par ondes hertziennes, infra-rouges ou analogues, de systemes de fermeture motorises
EP0724056A1 (fr) * 1995-01-25 1996-07-31 ALIADE (Société Anonyme) Dispositif de commande à distance par ondes hertziennes, infrarouges ou analogues, de systèmes de fermeture motorisés
US6320514B1 (en) 1995-04-14 2001-11-20 Kenneth E. Flick Remote control system suitable for a vehicle and having remote transmitter verification
US6480117B1 (en) 1995-04-14 2002-11-12 Omega Patents, L.L.C. Vehicle control system including token verification and code reset features for electrically connected token
US7737820B2 (en) 1995-04-14 2010-06-15 Omega Patents, L.L.C. Remote control system for an access door having remote transmitter verification
US5654688A (en) * 1995-04-14 1997-08-05 Omega Research And Development, Inc. Vehicle security system having enhanced remote transmitter security
WO1996032307A1 (fr) * 1995-04-14 1996-10-17 Flick Kenneth E Systeme de telecommande destine a un vehicule et dote d'une capacite de verification d'un tele-emetteur
US5818329A (en) * 1995-04-14 1998-10-06 Kenneth E. Flick Vehicle security system having enhanced remote transmitter security
AU701285B2 (en) * 1995-04-14 1999-01-21 Kenneth E. Flick Remote control system suitable for a vehicle and having remote transmitter verification
US6188326B1 (en) 1995-04-14 2001-02-13 Kenneth E. Flick Vehicle control system including token verification and code reset features
US6144315A (en) * 1995-04-14 2000-11-07 Flick; Kenneth E. Remote control system suitable for a vehicle and having remote transmitter verification and code reset features
US6140938A (en) * 1995-04-14 2000-10-31 Flick; Kenneth E. Remote control system suitable for a vehicle and having remote transmitter verification
US6140939A (en) * 1995-04-14 2000-10-31 Flick; Kenneth E. Biometric characteristic vehicle control system having verification and reset features
GB2305211A (en) * 1995-09-07 1997-04-02 Reilor Ltd Security locking circuit
GB2305211B (en) * 1995-09-07 1999-11-10 Reilor Ltd Pet door
FR2738587A1 (fr) * 1995-09-08 1997-03-14 Kiekert Ag Procede de commande d'un dispositif de fermeture pour un vehicule automobile, muni d'un systeme de commande a distance ainsi que d'un transpondeur
US5986571A (en) * 1996-03-25 1999-11-16 Flick; Kenneth E. Building security system having remote transmitter code verification and code reset features
FR2747817A1 (fr) * 1996-04-22 1997-10-24 Peugeot Systeme de programmation d'au moins un calculateur d'un systeme electronique embarque a bord d'un vehicule automobile
US6073064A (en) * 1996-06-06 2000-06-06 Delphi Automotive Systems Deutschland Gmbh Device and process for limiting access to authorized users
US6801119B1 (en) 1998-03-04 2004-10-05 Omega Patents, L.L.C. Programmer for vehicle security systems and related methods
US6346877B1 (en) 1998-03-05 2002-02-12 Kenneth E. Flick Vehicle security system including information display unit and related methods
US6150926A (en) * 1998-03-05 2000-11-21 Flick; Kenneth E. Vehicle security system including indicator mounted to window antenna unit and related methods
US6037859A (en) * 1998-03-05 2000-03-14 Flick; Kenneth E. Vehicle security system including control switch mounted to window antenna unit and associated methods
WO2001011170A1 (fr) * 1999-08-06 2001-02-15 Somfy Feinmechanik Und Elektrotechnik Gmbh Dispositif pour programmer et effacer des donnees d'un decodeur commande sans fil, en particulier d'un dispositif de commande pour le dispositif d'entrainement d'une porte de garage
CN102232273A (zh) * 2008-11-21 2011-11-02 法雷奥安全座舱公司 用于汽车的通信系统
CN110382311A (zh) * 2017-03-13 2019-10-25 大陆汽车有限公司 用于控制车辆的锁定元件的方法
CN110382311B (zh) * 2017-03-13 2022-12-30 大陆汽车有限公司 用于控制车辆的锁定元件的方法

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