Processing apparatus, portable transmitter, and remote operation system

• US 20050164728A1
• Filed: 12/14/2004
• Published: 07/28/2005
• Est. Priority Date: 12/15/2003
• Status: Active Grant

• Current Assignee: Fujitsu Ten Limited (DENSO Corporation)
• Original Assignee: Fujitsu Ten Limited (DENSO Corporation)
• Inventors: Matsubara, Manabu, Yoshimura, Minoru, Takee, Akira
• Granted Patent: US 7,383,056 B2
• Time in Patent Office: Days
• US Class Current: 455/521
• CPC Class Codes: B60R 25/2009 Antitheft state indicator
• CPC Class Codes: B60R 25/2036 by using the door logic and door and engine unlock means
• CPC Class Codes: B60R 25/209 Remote starting of engine
• CPC Class Codes: B60R 25/24 using electronic identifiers containing a code not memorised by the user
• CPC Class Codes: G07C 2009/00793 by Hertzian waves
• CPC Class Codes: G07C 2209/62 Comprising means for indicating the status of the lock
• CPC Class Codes: G07C 9/00309 operated with bidirectional data transmission between data carrier and locks

Abstract

A processing apparatus is mounted on a to-be-equipped body, transmits/receives signals to/from a portable transmitter portably carried by a user, and activates one of functions provided in the to-be-equipped body in accordance with instruction information included in an instruction signal transmitted from the portable transmitter. The processing apparatus includes a receiving unit, a transmitting unit, a judgment unit, a control unit, and an adjustment unit. The receiving unit receives the instruction signal transmitted from the portable transmitter. The transmitting unit transmits a response signal. The judgment unit judges whether or not an acknowledgement signal has been received from the portable transmitter. The control unit activates a function to be activated by the instruction information when the judgment unit concludes that the acknowledgement signal has been received. The adjustment unit adjusts an arrival distance of the response signal in accordance with the function to be activated by the instruction information.

Claims

1. A processing apparatus to be mounted on a to-be-equipped body, for transmitting/receiving signals to/from a portable transmitter portably carried by a user and activating one of functions provided in the to-be-equipped body in accordance with instruction information included in an instruction signal transmitted from the portable transmitter, the processing apparatus comprising:

a receiving unit that receives the instruction signal transmitted from the portable transmitter;

a transmitting unit that transmits a response signal in response to the instruction signal;

a judgment unit that judges whether or not an acknowledgement signal transmitted from the portable transmitter in response to the response signal has been received;

a control unit that activates a function to be activated by the instruction information when the judgment unit concludes that the acknowledgement signal has been received; and

an adjustment unit that adjusts an arrival distance of the response signal in accordance with the function to be activated by the instruction information.

7. The processing apparatus according to claim 1, wherein when the function to be activated by the instruction information is a function, which may cause a security problem if a remote operation allowable range for the function is wider than a predetermined distance, the adjustment unit sets the arrival distance of the response signal within the predetermined distance.

8. The processing apparatus according to claim 1, further comprising:

a second judgment unit that judges whether or not a trunk lock mechanism of the to-be-equipped body has been unlocked for at least a predetermined time, when the control unit activates a function of unlocking the trunk lock mechanism in accordance with the instruction signal transmitted from the portable transmitter; and

an information unit that informs the user of a fact that the trunk lock mechanism has been unlocked, when the second judgment unit concludes that the trunk lock mechanism has been unlocked for at least the predetermined time.

9. The processing apparatus according to claim 8, wherein when (a) the control unit activates the function of unlocking the trunk lock mechanism and (b) a door-open detection unit detects that a door is opened before the trunk lock mechanism has been unlocked for the predetermined time, the information unit is prohibited from informing the user.

2. A processing apparatus to be mounted on a to-be-equipped body, for transmitting/receiving signals to/from a portable transmitter portably carried by a user and activating one of functions provided in the to-be-equipped body in accordance with instruction information included in an instruction signal transmitted from the portable transmitter, the processing apparatus comprising:

a receiving unit that receives the instruction signal transmitted from the portable transmitter;

a first judgment unit that judges whether or not it is necessary to transmit a response signal in response to the instruction signal, based on a function to be activated by the instruction information included in the instruction signal;

a first control unit that activates the function to be activated by the instruction information when the first judgment unit concludes that it is not necessary to transmit the response signal;

a transmitting unit that transmits the response signal when the first judgment unit concludes that it is necessary to transmit the response signal;

a second judgment unit that judges whether or not an acknowledgement signal transmitted from the portable transmitter in response to the response signal has been received; and

a second control unit that activates the function to be activated by the instruction information when the second judgment unit concludes that the acknowledgement signal has been received.

6. The Processing apparatus according to claim 2, further comprising:

an adjustment unit that adjusts an arrival distance of the response signal in accordance with the function to be activated by the instruction information.

10. The processing apparatus according to claim 2, further comprising:

a third judgment unit that judges whether or not a trunk lock mechanism of the to-be-equipped body has been unlocked for at least a predetermined time, when the second control unit activates a function of unlocking the trunk lock mechanism in accordance with the instruction signal transmitted from the portable transmitter; and

an information unit that informs the user of a fact that the trunk lock mechanism has been unlocked, when the third judgment unit concludes that the trunk lock mechanism has been unlocked for at least the predetermined time.

11. The processing apparatus according to claim 10, wherein when (a) the second control unit activates the function of unlocking the trunk lock mechanism and (b) a door-open detection unit detects that a door is opened before the trunk lock mechanism has been unlocked for the predetermined time, the information unit is prohibited from informing the user.

3. A processing apparatus to be mounted on a to-be-equipped body, for transmitting/receiving signals to/from a portable transmitter portably carried by a user and activating one of functions provided in the to-be-equipped body in accordance with instruction information included in an instruction signal transmitted from the portable transmitter, the processing apparatus comprising:

a receiving unit that receives the instruction signal transmitted from the portable transmitter;

a transmitting unit that transmits a response signal in response to the instruction signal, the response signal being shorter in arrival distance than the instruction signal;

a judgment unit that judges whether or not an acknowledgement signal transmitted from the portable transmitter in response to the response signal has been received; and

a control unit that activates a function to be activated by the instruction information when the judgment unit concludes that the acknowledgement signal has been received.

4. A processing apparatus to be mounted on a to-be-equipped body, for transmitting/receiving signals to/from a portable transmitter portably carried by a user and activating one of functions provided in the to-be-equipped body in accordance with instruction information included in an instruction signal transmitted from the portable transmitter, the processing apparatus comprising:

a receiving unit that receives the instruction signal transmitted from the portable transmitter;

a first control unit that activates a function to be activated by the instruction information included in the instruction signal when the receiving unit receives the instruction signal;

a transmitting unit that transmits a response signal in response to the instruction signal;

a judgment unit that judges whether or not an acknowledgement signal transmitted from the portable transmitter in response to the response signal has been received; and

a second control unit that performs one of (a) canceling activation of the function having no acknowledgement and (b) restoring the to-be-equipped body to a state before activating the function having no acknowledgement, when the judgment unit concludes that the acknowledgement signal has not been received.

12. The processing apparatus according to claim 4, further comprising:

a second judgment unit that judges whether or not a trunk lock mechanism of the to-be-equipped body has been unlocked for at least a predetermined time, when the first control unit activates a function of unlocking the trunk lock mechanism in accordance with the instruction signal transmitted from the portable transmitter; and

an information unit that informs the user of a fact that the trunk lock mechanism has been unlocked, when the second judgment unit concludes that the trunk lock mechanism has been unlocked for at least the predetermined time.

13. The processing apparatus according to claim 12, wherein when (a) the first control unit activates the function of unlocking the trunk lock mechanism and (b) a door-open detection unit detects that a door is opened before the trunk lock mechanism has been unlocked for the predetermined time, the information unit is prohibited from informing the user.

5. A processing apparatus to be mounted on a to-be-equipped body, for transmitting/receiving signals to/from a portable transmitter portably carried by a user and activating one of functions provided in the to-be-equipped body in accordance with instruction information included in an instruction signal transmitted from the portable transmitter, the processing apparatus comprising:

a receiving unit that receives the instruction signal transmitted from the portable transmitter;

a first control unit that activates a function to be activated by the instruction information included in the instruction signal when the receiving unit receives the instruction signal;

a transmitting unit that transmits a response signal in response to the instruction signal;

a judgment unit that judges whether or not a cancel signal, which is transmitted from the portable transmitter and includes cancel instruction information, has been received; and

a second control unit that performs one of (a) canceling activation of the function in accordance with the cancel instruction information and (b) restoring the to-be-equipped body to a state before the activation of the function, when the cancel signal reception judgment unit concludes that the cancel signal has been received.

14. A portable transmitter to be portably carried by a user, for transmitting/receiving signals to/from a processing apparatus installed in a to-be-equipped body to remotely operate one of functions provided in the to-be-equipped body, the portable transmitter comprising:

a first transmitting unit that transmits, in accordance with a predetermined operation, an instruction signal including instruction information for activating the function provided in the to-be-equipped body;

a receiving unit that receives signals transmitted from the processing apparatus;

a judgment unit that judges whether or not a response signal transmitted from the processing apparatus in response to the instruction signal has been received; and

a second transmitting unit that transmits a cancel signal including cancel instruction information for giving an instruction to cancel activation of the function to be activated in accordance with the instruction information included in the instruction signal, when the judgment unit concludes that the response signal transmitted from the processing apparatus has not been received.

15. A remote operation system comprising:

a processing apparatus to be mounted on a to-be-equipped body; and

a portable transmitted to be portably carried by a user, wherein;

the processing apparatus includes;

a first receiving unit that receives an instruction signal transmitted from the portable transmitter;

a first transmitting unit that transmits a response signal in response to the instruction signal;

a judgment unit that judges whether or not an acknowledgement signal transmitted from the portable transmitter in response to the response signal has been received;

a control unit that activates a function to be activated by instruction information included in the instruction signal when the judgment unit concludes that the acknowledgement signal has been received; and

a first adjustment unit that adjusts an arrival distance of the response signal in accordance with the function to be activated by the instruction information;

the portable transmitter includes;

a second receiving unit that receives signals transmitted from the processing apparatus;

a second transmitting unit that transmits the instruction signal, in accordance with a predetermined operation;

a third transmitting unit that transmits an acknowledgement signal in response to the response signal transmitted from the processing apparatus; and

a second adjustment unit that adjusts an arrival distance of the instruction signal in accordance with the function to be activated.

16. A portable transmitter for remotely operating functions provided in a vehicle, the portable transmitter comprising:

a transmitting unit that transmits a signal including an instruction signal for activating one of the functions provided in the vehicle, the functions to be operated remotely including a door unlock function and a trunk unlock function; and

an adjustment unit that adjusts an arrival distance of a signal transmitted by the transmitting unit so that an arrival distance of a signal for activating the trunk unlock function is shorter than that of a signal for activating the door unlock function.

20. The portable transmitter according to claim 16, wherein:

number of the functions to be operated remotely is three or more; and

the adjustment units classifies arrival distances of the signals transmitted by the transmitting unit into at least three levels.

22. The portable transmitter according to claim 16, wherein:

the adjustment unit adjusts power intensity of the signal transmitted by the transmitting unit so as to adjust the arrival distance of the signal.

23. The portable transmitter according to claim 16, further comprising:

a plurality of transmitting antennas different in radiant efficiency, wherein;

the adjustment unit changes over from one of the transmitting antennas to another so as to adjust the arrival distance of the signal.

24. The portable transmitter according to claim 16, further comprising:

a detection unit that detects a battery capacity; and

an output reduction unit that reduces a radio wave transmission power based on the battery capacity detected by the detection unit.

25. The portable transmitter according to claim 16, further comprising:

an information unit that informs a user of reduction in the radio wave transmission power based on the battery capacity detected by the detection unit.

17. A portable transmitter for remotely operating functions provided in a vehicle, the portable transmitter comprising:

a transmitting unit that transmits a signal including an instruction signal for activating one of the functions provided in the vehicle, the functions to be operated remotely including an engine stop function and an engine start function; and

an adjustment unit that adjusts an arrival distance of a signal transmitted by the transmitting unit so that an arrival distance of a signal for activating the engine start function is shorter than that of a signal for activating the engine stop function.

18. A portable transmitter for remotely operating functions provided in a vehicle, the portable transmitter comprising:

a transmitting unit that transmits a signal including an instruction signal for activating one of the functions provided in the vehicle, the functions to be operated remotely including a panic function and a door unlock function, the panic function being a function of forcibly generating an alarm in response to an instruction from the portable transmitter; and

an adjustment unit that adjusts an arrival distance of a signal transmitted by the transmitting unit so that an arrival distance of a signal for activating the door unlock function is shorter than that of a signal for activating the panic function.

19. A portable transmitter for remotely operating functions provided in a vehicle, the portable transmitter comprising:

a transmitting unit that transmits a signal including an instruction signal for activating one of the functions provided in the vehicle, the functions to be operated remotely including a panic function and a trunk unlock function, the panic function being a function of forcibly generating an alarm in response to an instruction from the portable transmitter; and

an adjustment unit that adjusts an arrival distance of a signal transmitted by the transmitting unit so that an arrival distance of a signal for activating the trunk unlock function is shorter than that of a signal for activating the panic function.

21. A portable transmitter for remotely operating functions provided in a vehicle, the portable transmitter comprising:

a transmitting unit that transmits a signal including an instruction signal for activating one of the functions provided in the vehicle, the functions to be operated remotely including at least three kinds of functions; and

an adjustment unit that classifies arrival distances of the signals transmitted by the transmitting unit into at least three levels to adjust the arrival distances of the signals based on the functions to be operated remotely.