WO1996034167A1 - Emetteur/recepteur de vehicule et procede d'emission/reception pour l'emetteur/recepteur de vehicule - Google Patents
Emetteur/recepteur de vehicule et procede d'emission/reception pour l'emetteur/recepteur de vehicule Download PDFInfo
- Publication number
- WO1996034167A1 WO1996034167A1 PCT/JP1996/001170 JP9601170W WO9634167A1 WO 1996034167 A1 WO1996034167 A1 WO 1996034167A1 JP 9601170 W JP9601170 W JP 9601170W WO 9634167 A1 WO9634167 A1 WO 9634167A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- data
- transmission
- rolling code
- vehicle
- transmitting
- Prior art date
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
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60J—WINDOWS, WINDSCREENS, NON-FIXED ROOFS, DOORS, OR SIMILAR DEVICES FOR VEHICLES; REMOVABLE EXTERNAL PROTECTIVE COVERINGS SPECIALLY ADAPTED FOR VEHICLES
- B60J5/00—Doors
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B47/00—Operating or controlling locks or other fastening devices by electric or magnetic means
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q9/00—Arrangements in telecontrol or telemetry systems for selectively calling a substation from a main station, in which substation desired apparatus is selected for applying a control signal thereto or for obtaining measured values therefrom
-
- 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
- G07C2009/00238—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 transmittted data signal containing a code which is changed
- G07C2009/00253—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 transmittted data signal containing a code which is changed dynamically, e.g. variable code - rolling code
-
- 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 transmitting / receiving apparatus for a vehicle and a transmitting / receiving method of the transmitting / receiving apparatus for a vehicle.
- the present invention relates to a vehicle transmission / reception device and a transmission / reception method of the vehicle transmission / reception device, and more particularly to a vehicle transmission / reception device used for remote control such as unlocking of an automobile door and a transmission / reception method of the vehicle transmission / reception device.
- a variable code corresponding to the number of operations ie, the total number of operations of the transmitter 70
- the data including the first code also called the rolling code
- the data including the first code is transmitted to the receiver 72 provided in the vehicle, where the fixed code of the received data matches, and
- the rolling code of the transmitter 70 matches the value of the rolling count of the receiver 72 synchronized with the code
- the transmission data is accepted. Therefore, for example, when the transmission code is transmitted to the receiver 72 of the vehicle after the other person operates the transmitter 70 several times without directing the vehicle, the rolling code and the number of receptions do not match. Data is no longer accepted.
- the receiver 72 receives the signal by a predetermined operation.
- the number of times is skipped and updated (that is, the number of receptions for the number of operations performed without directing to the vehicle is added), and data is received.
- transmission data in which an erroneous rolling code is written is generated and transmitted by the transmitter due to battery exhaustion of the transmitter.
- the rolling code and the number of receptions may not match.
- the present invention has been made in view of the above circumstances, and has as its object to provide a vehicle transmitting / receiving device and a vehicle transmitting / receiving method capable of preventing a rolling code transmission error. Disclosure of the invention
- the present invention provides an operation unit, a data generation unit that generates transmission data including a fixed code, a rolling code corresponding to the number of operations of the operation unit, and transmission information, and a modulation unit that modulates the transmission data.
- a receiving unit that receives the transmission data transmitted from the transmitter, a demodulation unit that demodulates the received data, and a data decryption unit that determines whether the data can be received from the fixed code and the rolling code.
- a receiver comprising:
- a vehicle transmitting and receiving device comprising:
- the transmitter has transmission data recording means for writing the transmitted transmission data, and the transmission data recording means has a plurality of rolling codes for storing current rolling code data and past rolling code data.
- a data storage area is provided, and transmission data is generated based on the data storage area.
- the transmission data recording means has a write error check area for storing write error check data indicating whether or not the mouth ring code has been correctly written. Based on the write error check data in the check area, it is determined whether the rolling code data is accurate.Based on the determination, one of the current rolling code data and the past rolling code data is read. I have. If it is determined to be accurate by the above determination, the current rolling code data is read from the rolling code data storage area, and if it is determined to be abnormal by the above determination, the past rolling code data is read. The data is read from the rolling code data storage area.
- the present invention provides an operation unit, a fixed cord, and a row corresponding to the number of operations of the operation unit.
- a data generation unit for generating transmission data including a ring code and transmission information; a modulation unit for modulating the transmission data; a transmission unit for transmitting the modulated transmission data; Write error check data indicating whether or not data has been written to the memory.
- a transmission data recording means for storing transmission data provided with a storage area for storing transmission data; a transmission unit for receiving transmission data transmitted from the transmission unit; and a demodulation unit for demodulating the reception data.
- a receiver comprising: a demodulation unit; and a data decoding unit that determines whether the data is data that can be received from the fixed code and the rolling code. Prepared vehicle transmitting and receiving device,
- the data generation unit determines whether the reading of the data of the write error queryer is normal,
- the transmitting / receiving apparatus for a vehicle and the transmitting / receiving method of the transmitting / receiving apparatus for a vehicle of the present invention when the transmitter transmits the if data to be transmitted to the receiver, the transmitted rolling code data is written to the transmission data recording means. During this writing, if the rolling code data was not written correctly due to, for example, a dead battery, the write error check data indicating that the rolling code data was not correctly written is written to the write error check area. It is memorized.
- the data generation unit determines whether or not the rolling code data is accurate based on the write error check data of the write error checker. If it is determined to be accurate, the current rolling code data is read from the transmission data recording means, and the transmission data is generated based on the current rolling code data. It reads ring code data and generates transmission data based on it. Therefore, there is an excellent effect that transmission errors of the rolling code can be prevented.
- FIG. 1 is a block diagram showing a vehicle transmitting / receiving device according to one embodiment of the present invention.
- FIG. 2 is an explanatory diagram showing a memory of a transmitter of the vehicle transmitting / receiving apparatus according to one embodiment of the present invention.
- FIG. 3 is an explanatory diagram showing a configuration of transmission data of the vehicle transmitting / receiving device according to one embodiment of the present invention.
- FIG. 4 is a flowchart showing data reading control of the vehicle transmitting / receiving device according to one embodiment of the present invention.
- FIG. 5 is a flowchart showing data write control of the vehicle transmitting / receiving device according to one embodiment of the present invention.
- FIG. 6 is a block diagram showing a vehicle transmitting / receiving device according to a conventional example.
- the vehicle transmitting / receiving device 10 of the present embodiment includes a transmitter 12 and a receiver 14, and the transmitter 12 is connected to a wireless door lock remote controller.
- the receiver 14 is provided in the vehicle.
- the transmitter I 2 includes a key operation unit 16 and a data generation unit 18 that generates transmission data. As shown in FIG. 3, the data generation section 18 generates serial transmission data 26 in which a unique ID code 20, a rolling code 22, and a finger data 24 are arranged. .
- the transmitter 12 includes a memory 30 as transmission data recording means for recording transmitted transmission data.
- a memory 30 as transmission data recording means for recording transmitted transmission data.
- E 2 PROM is applied to the memory 30.
- the transmitter 12 includes a rolling code adder 32, and the rolling code adder 32 operates the rolling code by operating the key operation unit 16. Add numbers.
- the data generation section 18 has a function of selecting fingering data corresponding to predetermined command information operated by the key operation section 16. Then, serial transmission data in which a unique ID code and a rolling code are added before the predetermined data selected by the data generation unit 18 is generated.
- a modulation section 34 and a transmission section 36 are provided at the next stage of the data generation section 18.
- Transmission data generated by the data generation section 18 is FM-modulated by the modulation section 34 and transmitted.
- the signal is transmitted from the antenna 38 by the unit 36.
- the memory 30 has a number storage area 3 OA for storing the number of the rolling code area for four bytes (four locations), and among these four number storage areas 30 A, If two or more errors are abnormal, it is determined that the reading of the number storage error is abnormal.
- the memory 30 stores the current rolling code data and past rolling code data, and stores the rolling code data for four bytes (four locations) as a rolling code data storage area. Each time the rolling code is incremented, the writing area is changed as shown by the arrow A in FIG.
- receiver 14 is provided with receiving section 52 for receiving transmission data from antenna 50 and demodulating section 54 for demodulating the received data.
- a data decoding unit 56, a reception count adding unit 58, and an ID code memory 60 are provided next to the demodulation unit 54.
- the ID code memory 60 is the same as that stored in the memory 30 of the transmitter 12. The same unique ID code is stored.
- the reception count addition unit 58 increases the reception count by a predetermined number. They are added sequentially.
- the data decoding unit 56 compares the unique ID code among the received and demodulated data with the ID code stored in the ID code memory 60, and calculates the rolling code (the number of transmissions by the transmitter). The corresponding code) is compared with the reception number code added by the reception number adding unit 58. When the two codes match, this data is received, an operation corresponding to the command data is recognized, and a predetermined drive command is issued to the drive unit 62.
- a drive mechanism such as a solenoid, a motor, or a switch is used to open a vehicle door, turn on an interior light, turn on a headlight, and the like. Next, the operation of the present embodiment will be described.
- the predetermined command information input by the key operation unit 16 is transmitted data is generated by the data generation unit 18 and stored in the memory 30.
- the data generation section 18 of the transmitter 12 reads the ID code area, the number storage area, and the write error check area from the memory 30 (step 100). ).
- Step 102 it is determined whether or not the reading of the number storage area is normal (Step 102) If the determination is affirmative, that is, if the reading of the number storage area is normal, it is determined whether the reading of the write error check area is normal. (Step 104) If the determination is affirmative, that is, if the reading of the write error check area is normal, the rolling code area is read from the rolling code area according to the number storage area.
- the transmission data generated in this manner is modulated by the modulator 34 and transmitted from the antenna 38 by the transmitter 36.
- the data generator 18 writes the transmitted transmission data to the memory 30. Specifically, as shown in FIG. 5, the rolling code area for writing is changed to the next rolling code area as shown by arrow A in FIG. 2 (step 200).
- step 202 L0w is written into the write error check area (step 202), and the rolling code area number is written to the number storage area (step 204).
- step 206 a rolling code is written (step 206), and finally Hi is written to the write error check area (step 208).
- the write error check area is Low, and as shown in FIG. A negative determination is made, that is, it is determined that reading of the write error check area is not normal, that is, that an error has occurred during data writing. Therefore, the process proceeds to step 108 to read the rolling data from the previous rolling code area determined in the number storage area, and then proceeds to step 110 to execute the rolling code data. +1 count up.
- step 102 if a negative determination is made in step 102, that is, if it is determined that reading of the number storage area is not normal, in detail, if the number of the rolling code area cannot be determined, the process proceeds to step 112. Then, read the data from the rolling code area at the top of Fig. 2 and go to step 114 to count up the data by +3. For this reason, even if the number of the rolling code area cannot be determined, it is possible to prevent the transmission error of the rolling code.
- the memory 30 has a numbering area 30 A, a write error check area 30 B, and a rolling code area 30 C, each having 4 bytes. (4 locations), but these are not limited to 4 bytes (4 locations).
- the vehicular transmission / reception device and the vehicular transmission / reception device transmission / reception method according to the present invention are particularly suitable for use in a vehicular transmission / reception device used for remote control such as opening a door of an automobile. I have.
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Lock And Its Accessories (AREA)
- Selective Calling Equipment (AREA)
- Mobile Radio Communication Systems (AREA)
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP96912272A EP0825314A4 (en) | 1995-04-27 | 1996-04-26 | TRANSMITTER / RECEIVER FOR VEHICLES AND METHOD FOR TRANSMITTING / RECEIVING FOR VEHICLE TRANSMITTER / RECEIVER |
US08/945,174 US6263197B1 (en) | 1995-04-27 | 1996-04-26 | Transmitter/receiver for a vehicle and transmission/reception method of the transmitter/receiver for vehicles |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7/103928 | 1995-04-27 | ||
JP10392895A JP3127095B2 (ja) | 1995-04-27 | 1995-04-27 | 車両用送受信装置 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1996034167A1 true WO1996034167A1 (fr) | 1996-10-31 |
Family
ID=14367099
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP1996/001170 WO1996034167A1 (fr) | 1995-04-27 | 1996-04-26 | Emetteur/recepteur de vehicule et procede d'emission/reception pour l'emetteur/recepteur de vehicule |
Country Status (5)
Country | Link |
---|---|
US (1) | US6263197B1 (ja) |
EP (1) | EP0825314A4 (ja) |
JP (1) | JP3127095B2 (ja) |
KR (1) | KR100346918B1 (ja) |
WO (1) | WO1996034167A1 (ja) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100307665B1 (ko) * | 1997-05-23 | 2001-10-19 | 하재홍 | 전자정보키시스템 |
US6194991B1 (en) * | 1999-10-29 | 2001-02-27 | Lear Corporation | Remote keyless entry rolling code storage method |
DE10056573A1 (de) * | 2000-11-15 | 2002-08-29 | Bayerische Motoren Werke Ag | Transponderschlüssel für eine elektronische Wegfahrsperrenfunktion |
JP2004316071A (ja) * | 2003-04-10 | 2004-11-11 | Denso Corp | 遠隔操作システムの送信機 |
DE102004047542A1 (de) * | 2004-09-30 | 2006-04-27 | Bayerische Motoren Werke Ag | Vorrichtung und Verfahren zum Auslesen von Adaptionswerten aus Kraftfahrzeug-Steuergeräten |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH04306380A (ja) * | 1991-02-15 | 1992-10-29 | Alps Electric Co Ltd | 自動車各部遠隔駆動装置の識別システム |
JPH04336185A (ja) * | 1991-05-13 | 1992-11-24 | Alps Electric Co Ltd | 送受信装置 |
Family Cites Families (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0416683A (ja) | 1990-05-10 | 1992-01-21 | Yuhshin Co Ltd | キーレスロックシステム |
DE4204463C2 (de) * | 1991-02-15 | 1995-06-01 | Alps Electric Co Ltd | Identifikations-Informations-Sende-/Empfangsvorrichtung |
US5872519A (en) * | 1992-05-22 | 1999-02-16 | Directed Electronics, Inc. | Advanced embedded code hopping system |
WO1994018036A1 (de) * | 1993-02-12 | 1994-08-18 | Robert Bosch Gmbh | Fernbedienbare sicherungseinrichtung für ein kraftfahrzeug |
GB9303779D0 (en) * | 1993-02-25 | 1993-04-14 | Rover Group | A system for the remote operation of a security device |
JPH0781521A (ja) * | 1993-06-30 | 1995-03-28 | Alpine Electron Inc | セキュリティ装置 |
US5369706A (en) | 1993-11-05 | 1994-11-29 | United Technologies Automotive, Inc. | Resynchronizing transmitters to receivers for secure vehicle entry using cryptography or rolling code |
EP0727117B1 (en) * | 1993-11-05 | 2000-03-15 | Lear Automotive Dearborn, Inc. | Method for automatic resynchronization of the transmitter/receiver pair in a remote keyless entry system |
KR0162932B1 (ko) * | 1993-12-27 | 1998-12-15 | 쯔지 요시후미 | 차량 도난 방지 장치 |
JP3319230B2 (ja) * | 1994-08-05 | 2002-08-26 | 株式会社デンソー | 遠隔操作装置 |
US5708307A (en) * | 1994-11-02 | 1998-01-13 | Nissan Motor Co., Ltd. | Anti-theft car protection system |
US5565812A (en) * | 1995-03-23 | 1996-10-15 | Texas Instruments Incorporated | Increased sensitivity signal shaper circuit to recover a data stream coming from a digitally modulated channel |
US5598475A (en) * | 1995-03-23 | 1997-01-28 | Texas Instruments Incorporated | Rolling code identification scheme for remote control applications |
DE69637072T2 (de) * | 1995-05-17 | 2008-01-10 | The Chamberlain Group, Inc., Elmhurst | Rollierendes code-sicherheitssystem |
US5661804A (en) * | 1995-06-27 | 1997-08-26 | Prince Corporation | Trainable transceiver capable of learning variable codes |
US6026165A (en) * | 1996-06-20 | 2000-02-15 | Pittway Corporation | Secure communications in a wireless system |
US5949349A (en) * | 1997-02-19 | 1999-09-07 | The Chamberlain Group, Inc. | Code responsive radio receiver capable of operation with plural types of code transmitters |
-
1995
- 1995-04-27 JP JP10392895A patent/JP3127095B2/ja not_active Expired - Fee Related
-
1996
- 1996-04-26 WO PCT/JP1996/001170 patent/WO1996034167A1/ja not_active Application Discontinuation
- 1996-04-26 EP EP96912272A patent/EP0825314A4/en not_active Withdrawn
- 1996-04-26 US US08/945,174 patent/US6263197B1/en not_active Expired - Lifetime
- 1996-04-26 KR KR1019960013039A patent/KR100346918B1/ko not_active IP Right Cessation
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH04306380A (ja) * | 1991-02-15 | 1992-10-29 | Alps Electric Co Ltd | 自動車各部遠隔駆動装置の識別システム |
JPH04336185A (ja) * | 1991-05-13 | 1992-11-24 | Alps Electric Co Ltd | 送受信装置 |
Non-Patent Citations (1)
Title |
---|
See also references of EP0825314A4 * |
Also Published As
Publication number | Publication date |
---|---|
US6263197B1 (en) | 2001-07-17 |
JP3127095B2 (ja) | 2001-01-22 |
KR960039683A (ko) | 1996-11-25 |
EP0825314A4 (en) | 2000-12-06 |
EP0825314A1 (en) | 1998-02-25 |
JPH08303078A (ja) | 1996-11-19 |
KR100346918B1 (ko) | 2002-10-31 |
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