JPH10317748A - Keyless entry device mounted on vehicle and portable telephone set - Google Patents

Abstract

PROBLEM TO BE SOLVED: To lock and unlock a vehicle door using a portable telephone set by providing a control means which locks and unlocks a key based on the detected code signal when the predetermined code signal is included in company with the predetermined key inputting for which locking and unlocking the key is instructed by the portable telephone set. SOLUTION: A keyless entry device mounted on vehicle 1 can be remotely operated by any of a key 7 incorporating a normal transmitter and a portable telephone set 5. Next, a code signal detection part 21c detects a code signal included in the radio wave received through an antenna 3 and a reception circuit 5, and a distinguishing part 21d distinguishes whether an ID code for individual distinguishing which is included in the detected code signal coincides with the ID code memorized in a ROM 21b in advance or not. When they coincide, a control part 21e drives and controls actuators 13, 15 to lock and unlock the key by corresponding to a function code included in the code signal detected by the detection part 21c. Consequently, it is possible to lock and unlock the key by the telephone set 5, even if the key 7 is lost.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an in-vehicle keyless entry device and a portable telephone (including a simplified portable telephone in this specification).

[0002]

2. Description of the Related Art In a conventional keyless entry system,
The transmitter is built into the key holder and the head of the key, and when an unlocking button provided on the key holder or the key is pressed by the operator, the transmitter is transmitted from the transmitter to the receiving side mounted in the vehicle. A signal for instructing the on-vehicle keyless entry device to unlock the vehicle door or the like is transmitted by radio waves or infrared rays. Upon receiving the signal, the on-vehicle keyless entry device controls the unlocking and locking of the vehicle door according to the instruction of the signal.

[0003]

However, in the above-mentioned prior art, when a key or a key holder is lost or a vehicle door is locked while being left in a vehicle, the vehicle door is unlocked. There is a problem that can not be done.

Accordingly, the present invention has been made in view of the above problems, and therefore, even when a key is lost or a vehicle door is locked while being left in a vehicle, the vehicle door is unlocked using a portable telephone. It is an object of the present invention to provide an in-vehicle keyless entry device and a mobile phone that can perform the operation.

[0005]

A technical means for achieving the above object is an in-vehicle keyless entry device mounted on a vehicle for unlocking a vehicle door, and transmitting a call content transmitted from a mobile phone. Receiving means for receiving a radio signal for use in the vehicle, driving means for unlocking the vehicle door, and a predetermined key input for instructing the mobile phone to instruct the mobile phone to input the radio signal received by the receiving means. When a predetermined code signal transmitted from the mobile phone is included with the execution of the above, the vehicle is detected by detecting the code signal, and the driving means is controlled to be driven based on the detected code signal. Control means for unlocking the door.

[0006] Preferably, the code signal includes an ID code for individual identification and a function code for instructing a predetermined unlocking operation, and the control means controls the ID code included in the code signal. It is preferable that the predetermined unlocking operation indicated by the function code is performed through the driving unit only when the code matches the ID code stored in the control unit in advance.

Preferably, the code signal transmitted from the portable telephone is constituted by a keyless transmission signal tone different from a signal tone used for transmitting a telephone number in the portable telephone.

Further, preferably, the code signal transmitted from the portable telephone is constituted by the same signal tone as that used for transmitting a telephone number in the portable telephone.

Preferably, the code used for the code signal is set differently from the telephone number code used.

[0010] The technical means for achieving the above object is as follows.
A mobile phone for transmitting and receiving communication contents by communication radio waves, comprising: input means for inputting a telephone number, a mode switching command, and an unlock code for instructing a predetermined unlocking operation, and input through the input means. In response to the mode switching command, a telephone mode for transmitting / receiving the contents of the call by the communication radio wave, and the unlocking code transmitted to the on-vehicle keyless entry device mounted on the vehicle for unlocking the vehicle door by the communication radio wave. Mode switching means for switching between a keyless mode and a telephone number transmission signal indicating the input telephone number when the telephone number is input through the input means in a state where the telephone mode is switched to the telephone mode. A first signal sound generating means for generating a sound; and the input means in a state where the mode is switched to the keyless mode. When the locking code is entered,
A second signal tone generating means for generating a keyless transmission signal tone different from the telephone number transmission signal tone indicating the input unlocking code, and the first and second signal tone generating means Transmitting means for transmitting the signal tone in the same transmission format by the communication radio wave.

Preferably, the input means includes a dedicated mode changeover switch for inputting the mode changeover command.

Further, preferably, the input means includes a push button which is lit in a different lighting color or a different lighting mode between the telephone mode and the keyless mode.

[0013]

FIG. 1 is a block diagram of an on-vehicle keyless entry device according to a first embodiment of the present invention.
1 is a block diagram of a mobile phone according to a first embodiment of the present invention, and FIG. 3 is a plan view of the mobile phone. A keyless entry system is constituted by the vehicle-mounted keyless entry device of FIG. 1 and the mobile phone of FIG.

As shown in FIG. 1, a vehicle-mounted keyless entry device 1 mounted on a vehicle has a mobile phone 5 (to be described later).
Antenna 3 capable of receiving communication radio waves transmitted from 1
Receiving means comprising a receiving circuit 5 and a receiving circuit 5; an antenna 9 for receiving a keyless radio wave transmitted from a transmitter incorporated in a normal key 7 used conventionally; and a receiving circuit 11; An actuator 13 provided for each door and in the trunk, for unlocking the vehicle door and unlocking the trunk, and for each window of the vehicle,
An actuator 15 for opening and closing each window, an antenna 3,
Based on the radio wave signals received through the receiving circuit 9 and the receiving circuits 5 and 11, the actuators 13 and 15 are driven and controlled through the driving circuits 17 and 19 to perform the unlocking operation of the vehicle door, the unlocking operation of the trunk, and the opening and closing operation of the window. Microcomputer 2
1 (control means).

The on-vehicle keyless entry device 1 includes a key 7 having a built-in ordinary transmitter and a mobile phone 5 described later.
The remote operation by the mobile phone 51 is performed by inputting a predetermined function code corresponding to each operation such as unlocking and unlocking through a dial key 53 of the mobile phone 51, The code is transmitted by transmitting the code from the mobile phone 51 to the in-vehicle keyless entry device 1 through a communication radio wave for transmitting the contents of the call.

In response, the microcomputer 21 comprises a RAM 21a and a ROM 21b in which a control program and control data necessary for the operation of the microcomputer 21 are stored.
A code signal detecting section 21c for detecting a code signal (keyless transmission signal tone) included in the received radio wave signal received through the antenna 3 and the receiving circuit 5, and a code signal detected by the code signal detecting section 21c. Identification unit 21d for identifying whether the ID code for individual identification to be matched with the ID code stored in the ROM 21b in advance
And the actuators 13,
And a control unit 21e that controls the drive of the control unit 15 and performs operations such as unlocking and the like corresponding to the function code included in the code signal detected by the code signal detection unit 21c.

The ROM 21b has a start instruction code for starting the on-board keyless entry device 1 from a standby state and an ID code for individual identification. A plurality of function codes to be input from the dial keys 53 of the telephone set 51 and operations such as unlocking and the like corresponding to the function codes are controlled by the control unit 21e.
Are stored in association with each other. A specific example of a function code is "
"01" is a code for instructing locking of all vehicle doors, "02" is a code for instructing unlocking of all vehicle doors, and "03" is a code for instructing unlocking of the trunk. "04" is a code for instructing the operation of opening the window on the driver's seat side, "05" is a code for instructing the operation of closing the window on the driver's side, and "0".
6 "is a code for instructing the opening operation of the passenger side window, and" 07 "is a code for instructing the closing operation of the passenger side window.

The control unit 21e includes a code signal detection unit 21c
Detects the activation instruction code included in the head of the code signal, activates the in-vehicle keyless entry device 1 from the standby state, and as a result of identification by the identification unit 21d, the ID code transmitted following the activation instruction code. ROM 21
If the ID code stored in b coincides with the ID code, the function code transmitted following the ID code is accepted, and when the function code is transmitted, unlocking and the like indicated by the function code are performed. On the other hand, when the ID code and the function code are not transmitted before a predetermined time elapses after the activation instruction code is transmitted, and as a result of identification by the identification unit 21d, the transmitted ID is When the code is different from the ID code stored in the ROM 21b, the operation of accepting the function code is stopped, and the in-vehicle keyless entry device 1 is changed from the start state to the standby state.

The control unit 21e operates the key 7 by operating an operation button (not shown) provided on the key 7, and transmits a radio signal transmitted from the key 7 for instructing unlocking of a vehicle door and a trunk. 9 and a receiving circuit 11, a function is provided for performing an unlocking operation indicated by the received radio signal through the driving circuits 17 and 19 and the actuators 13 and 15.

On the other hand, the portable telephone 51 shown in FIGS. 2 and 3 has a normal telephone function of transmitting / receiving the contents of a call by using a communication radio wave, and also has a code signal for remotely controlling the above-mentioned keyless entry device 1 mounted on a vehicle. It has a keyless transmission function for transmitting by communication radio waves, and its housing 5
In front of 5, "0" to "9", "*" and "
Input means including a normal dial key 53 composed of ## keys, and a telephone key 57 and a keyless key 59 as a mode switching switch for switching the operation mode of the mobile phone 51 between a telephone mode and a keyless mode. Input from these keys 53, 57, 59 is performed by pressing the keys 53, 57, 59.

Each dial key 53 is provided with two types of light emitting diodes 61 and 63 having different emission colors. Among them, the light emitting diode 61 emits red light, and is turned on when the operation mode of the mobile phone 51 is the keyless mode.
The light emitting diode 63 emits green light,
When the operation mode of the mobile phone 51 is the telephone mode, the light is turned on. When these light emitting diodes 61 and 63 are turned on, each dial key 53
Is lit by red or green light, and the light illuminates the dial number of each dial key 53.

A microcomputer 6 for controlling the portable telephone 51
5, a RAM 65a and a ROM 65b storing control programs and control data necessary for the microcomputer 65 to execute the telephone function and the keyless transmission function;
Mode switching unit 65c (mode switching unit), and first and second signal tone creating units 65d and 65e (signal tone creating unit)
And a call processing unit 65f.

The mode switching unit 65c switches the operation mode of the portable telephone 51 between the keyless mode and the telephone mode based on a mode switching command input through the telephone key 57 and the keyless key 59,
Light emitting diodes 61 and 63 through output circuits 67 and 69
On / off control.

When any of the dial keys 53 is pressed while the operation mode is the telephone mode, the first signal tone generator 65d corresponds to the dial number of the pressed dial key 53. DTMF (Dual Tone Multi) which is a signal tone for telephone number transmission
i-Frequency) sound is created.

The second signal tone generator 65e creates a keyless signal tone (keyless signal tone) corresponding to each dial number having a different frequency from the DTMF tone, and the keyless key 59 is pressed. When the operation mode is changed to the keyless mode, a keyless signal sound indicating the start instruction code and the ID code stored in the ROM 65b is generated along with the operation mode being changed to the keyless mode. When the dial key 53 is pressed, the pressed dial key 5 is pressed.
A keyless signal tone corresponding to the dial number 3 is created.

The DTMF tone and the keyless tone generated by the first and second signal tone generators 65d and 65e in this manner have the same transmission format and the same as a voice signal through a transmitting / receiving circuit 71 as a transmitting means and an antenna 73. Transmitted on the same carrier frequency.

The call processing unit 65f includes the portable telephone 51
A line connection process and a transmission / reception process of a call content between the terminal and the exchange of the base station are performed. An audio signal converted into an electric signal through the microphone 75 is input to the call processing unit 65f through the input circuit 77. The audio signal input from the microphone 75 is input to the call processing unit 65f. After the signal processing, the signal is transmitted from the antenna 73 through the transmission / reception circuit 71 by communication radio waves. In addition, a voice signal included in the communication radio wave received by the antenna 73 is transmitted to the call processing unit 65 through the transmission / reception circuit 71.
f, the voice signal is subjected to signal processing in a call processing unit 65f, and then output to a speaker 81 through an output circuit 79.
Is output to a voice.

In addition, the call processing unit 65f includes the antenna 7
3 includes a signal for calling the mobile phone 51, the mobile phone 5
Output circuit 7 to notify that 1 is receiving a call
9 has a function of outputting a ring tone from the speaker 81.

In the portable telephone 51 configured as described above, the call code and the function code including the start instruction code and the ID code for remotely operating the on-vehicle keyless entry device 1 are modulated in the same manner as the telephone number and the contents of the call. Although the call is transmitted in the same format and the same carrier frequency, the call code and function code for keyless transmission are transmitted as a keyless signal tone different from the DTMF tone for telephone number transmission. There is no accidental call to another phone.

FIG. 4 is a flowchart showing the control of the microcomputer 65 provided in the mobile phone 51. If there is a key input from the telephone key 57 or the keyless key 59 in step S11, the process proceeds to step S12, and the process proceeds to step S12.
It is determined whether or not the key input of No. 11 is an input from the keyless key 59. If the key input is an input from the keyless key 59, the process proceeds to step S13, where the dial key 53 is lit red by the light emitting diode 61, The operation mode of the mobile phone 51 becomes a keyless mode, and a keyless beep indicating a call code including a start instruction code and an ID code is created by the second tone generator 65e, and a call represented by the keyless beep is generated. The code is transmitted to the on-vehicle keyless entry device 1 through the transmission / reception circuit 71 and the antenna 73 in the order of the start instruction code and the ID code, and the process proceeds to step S15.

If the determination in step S12 is negative, the process proceeds to step S14, in which the dial key 5 is lit green by the light emitting diode 81, and the operation mode of the portable telephone 51 is set to the telephone mode. Proceed to S16.

In step S15, it is determined whether there is an input from the dial key 53 within 10 seconds after the input from the keyless key 59 in step S11, that is, whether or not the input of the function code has been started. While waiting for an input from the dial key 53, if there is no input within 10 seconds, the keyless mode is canceled in step S17 and the process returns to step S11. If the input of the function code is started within 10 seconds. Proceeding to step S18, the keyless signal sound corresponding to the dial number of the dial key 53 depressed in accordance with the input of the function code is created by the second signal sound creation unit 65e, and the keyless signal sound indicating the function code is generated. The data is sequentially transmitted to the on-vehicle keyless entry device 1 through the transmission / reception circuit 71 and the antenna 73.

In step S16, it is determined whether there is an input through the dial key 53 within 10 seconds after the input from the telephone key 57 in step S11, that is, whether or not the input of the telephone number has been started. While waiting for the input of the telephone number, and if there is no input within 10 seconds, the telephone mode is canceled in step S19 and step S1 is executed.
When the input of the telephone number is started within 10 seconds, the process proceeds to step S20, and the DTMF sound corresponding to the dial number of the dial key 53 depressed in accordance with the input of the telephone number is the first signal tone. The DTMF sound created by the creating unit 65d and indicating the telephone number is sequentially transmitted to the base station through the transmission / reception circuit 71 and the antenna 73. When a call is made to a predetermined call partner, in step S21, the call processing by the call processing unit 65f is performed. Transmission / reception processing is performed.

FIG. 5 is a flow chart showing the control of the microcomputer 21 when the mobile telephone 51 remotely controls the keyless entry device 1 on the vehicle. In step S31, when the code signal detection unit 21c detects the activation instruction code included in the received radio wave signal, in step S32, the control unit 21e
As a result, the on-vehicle keyless entry device 1 is activated from the standby state, and when the code signal detection unit 21c detects the ID code transmitted following the activation instruction code in step S33, the process proceeds to step S34.

In step S34, an identification process is performed by the identification section 21d to determine whether or not the ID code received in step S33 matches the ID code stored in the ROM 21b in advance. In step S35, the operation of accepting the function code is stopped, and the operation state is switched from the activation state to the standby state, and step S35 is performed.
Returning to step 31, if the ID codes match, the process proceeds to step S36.

In step S36, while determining whether or not the function code has been transmitted within a predetermined time after receiving the activation instruction code in step S31, the control waits for the transmission of the function code, and waits within a predetermined time. If the function code is not transmitted to step S31, the accepting operation is stopped in step S35, and the operation state of the in-vehicle keyless entry device 1 is switched from the activation state to the standby state, and step S31
When the function code is transmitted within the predetermined time, the process proceeds to step S37, and the operation such as unlocking and the like indicated by the transmitted function code is performed by the control unit 21e.

Next, a brief description will be given of control of the microcomputer 21 when the keyless entry device 1 is remotely operated using the key 7 having a built-in transmitter. When an operation button provided on the key 7 is pressed and an instruction signal for instructing a predetermined unlocking operation is transmitted from the key 7 to the in-vehicle keyless entry device 1 together with a signal indicating an ID code, the microcomputer 21 The unit 21e performs the unlocking operation indicated by the received instruction signal only when the ID code included in the signal transmitted from the key 7 matches the ID code stored in the ROM 21b.

As described above, according to this embodiment, the on-vehicle keyless entry device 1 can be remotely operated by any of the conventionally used keys 7 having a built-in transmitter and the portable telephone 51. Therefore, it is possible to flexibly respond to the operator's request, and even if the key 7 is lost or the vehicle door is locked while being left in the vehicle, the vehicle can be controlled by the mobile phone 51. The door can be unlocked and the trunk unlocked.

A method of transmitting a start instruction code, an ID code and a function code using a keyless signal tone from the mobile phone 51 to the keyless entry device 1 is provided in a method of transmitting a telephone number using a DTMF tone on a telephone line. The keyless signal sound is transmitted by radio waves of the same modulation method and the same carrier frequency as the DTMF sound at the time of transmitting the telephone number, so a keyless transmission function is added to a conventional ordinary mobile phone. If the transmission and reception circuit 7
1 does not need to be changed at all, and the keyless transmission function can be provided by a simple change.

Further, since the start instruction code, ID code and function code are transmitted as keyless beeps whose sound frequency is different from that of the DTMF tone, the exchange of the base station responds by keyless transmission and calls another telephone. Can be prevented from being connected.

When the operator does not want to use the key 7 for remote control of the on-vehicle keyless entry device 1 and only wants to use the mobile phone 1, the user can use the transmitter as a key as in the prior art. There is no need to incorporate the key, the key can be reduced in size, and a key holder with a built-in transmitter can be dispensed with.

Further, the opening / closing operation of the window of the vehicle can be remotely controlled using the portable telephone 51, which is excellent in convenience.

Since the telephone key 57 and the keyless key 59 for switching the operation mode of the portable telephone 51 between the telephone mode and the keyless mode are provided, the operation mode can be switched with one touch.

Further, when the vehicle-mounted keyless entry device 1 is remotely controlled by the portable telephone 51, the portable telephone 5
1 includes an ID code, and the in-vehicle keyless entry apparatus 1 transmits the transmitted ID code and the ID stored in the ROM 21b in advance.
Since the function code is received only when the code matches, the vehicle-mounted keyless entry device 1 is erroneously received by a transmission radio wave from a mobile phone 51 other than the mobile phone 51 owned by the vehicle owner. Can be prevented from reacting.

Since the activation instruction code and the ID code are transmitted from the mobile phone 51 in response to the pressing operation of the keyless key 59, the operator has to bother with the activation instruction code and the ID code. There is no need to input and the operability is excellent.

Furthermore, since the dial keys 53 are lit in different colors between the keyless mode and the telephone mode, whether the operation mode of the portable telephone 51 is the keyless mode or the telephone mode is different. You can easily recognize if there is.

When a telephone number and a function code are input from the dial keys 53, the dial keys 53 are turned on and the dial numbers written on the dial keys 53 are illuminated, so that key operations are performed in a dark place. Even in this case, the desired dial key 53 can be easily pressed.

In the present embodiment, the telephone key 57 and the keyless key 59 for mode switching are provided on the portable telephone 51, but the telephone key 57 and the keyless key 59 are not provided, and a predetermined switching code through the dial key 53 is provided. , The operation mode may be switched between the telephone mode and the keyless mode. in this case,
The transmission process of the start instruction code and the ID code may be performed in response to the input of the switching code and the switching of the operation mode, or the operator himself / herself issues the activation instruction through the dial key 53 after the input of the switching code. By inputting the code and the ID code, the input start instruction code and ID code may be transmitted. As the switching code, a code not used for the telephone number, for example, "999 *" is used. Thus, by removing the telephone key 57 and the keyless key 59, space can be saved, and the size of the mobile phone can be reduced.

Further, in the present embodiment, the function code for instructing unlocking and the like is input through the dial key 53 so that the function code is transmitted from the portable telephone 51. A dedicated key such as a lock key and an unlock key associated with is provided,
A function code indicating an operation corresponding to each dedicated key may be transmitted from the mobile phone 51 by pressing the dedicated key.

Further, in this embodiment, the dial key 5
3 is provided with two types of light emitting diodes 61 and 63 for lighting the dial key 53 in different colors in the keyless mode and in the telephone mode. Then, the lighting may be performed in the same color in each mode. When the dial key 53 is lit in the same color in each mode, the light emitting diode is always lit in the telephone mode,
In the keyless mode, the light emitting diode may be turned on and off, and the lighting state of the dial key 53 may be made different in each mode.

FIG. 6 is a block diagram of a portable telephone constituting a keyless entry system together with a vehicle-mounted keyless entry device according to a second embodiment of the present invention, and FIG. 7 is a plan view of the portable telephone. The in-vehicle keyless entry device according to the present embodiment has the same configuration as the in-vehicle keyless entry device in FIG. 1, and is not shown in the drawings. 6 and 7 are ordinary mobile phones having only a telephone function. Parts corresponding to those of the mobile phones of FIGS. 2 and 3 are denoted by the same reference numerals and description thereof is omitted. I do.

Mobile phone 91 shown in FIGS. 6 and 7
Is an ordinary mobile phone, so the telephone key 57
Also, the keyless key 59 is not provided, and the microcomputer 93 is also dedicated to the telephone function. The microcomputer 93 includes a RAM 93a and a ROM 93b necessary for the microcomputer 93 to execute a telephone function, and a signal sound creating section 93c and a call processing section similar to the second signal tone creating section 65e and the call processing section 65f. 93d.

In the keyless entry system using the portable telephone 91, a function code or the like is transmitted to the on-vehicle keyless entry device 1 using a DTMF sound transmitted from the portable telephone 91 in response to a key input from the dial key 53. It has become. Correspondingly, the code signal detector 21c of the microcomputer 21 provided in the on-vehicle keyless entry device 1 detects a DTMF sound included in the received radio signal.

For this reason, in order to prevent the exchange of the base station from reacting at the time of keyless transmission and connecting the telephone to another telephone, a series of activation instruction codes, ID codes, and The function code must not match any of the telephone number codes used. As a countermeasure, "*" which is not used as a telephone number is used for the start instruction code, the ID code, and the function code.

In such a keyless entry system, remote control of the on-vehicle keyless entry device 1 using the mobile phone 91 is performed by first inputting a start instruction code (for example, “999 *”) from the dial key 53 of the mobile phone 91. , Followed by an ID code (for example, “01234567”).
* ”) Is input, and then a function code such as“ 01 ”, which indicates a desired operation such as unlocking, is input.

FIG. 8 is a flowchart showing the control of the microcomputer 21 when the portable telephone 91 remotely controls the vehicle-mounted keyless entry device 1. In step S41, when the code signal detection unit 21c detects the activation instruction code included in the received radio wave signal, in step S42, the control unit 21e
As a result, the in-vehicle keyless entry device 1 is started from the standby state, and the process proceeds to step S43.

In step S43, while determining whether or not the ID code has been transmitted within a predetermined time after receiving the activation instruction code in step S41, the system waits for the ID code to be transmitted. If the ID code is not transmitted within the time, the reception of the function code is stopped in step S44, the operation state of the in-vehicle keyless entry device 1 is switched from the startup state to the standby state, and the process returns to step S41. If the ID code is transmitted within the time, the process proceeds to step S45.

In step S45, an identification process is performed by the identification section 21d to determine whether or not the ID code received in step S43 matches the ID code stored in the ROM 21b in advance. In step S44, the reception of the function code is stopped, and the operation state is switched from the startup state to the standby state, and step S4
Returning to step 1, if the ID codes match, the process proceeds to step S46.

In step S46, I in step S43
Waiting for the function code to be transmitted while determining whether the function code has been transmitted within the predetermined time after receiving the D code, and when the function code is not transmitted within the predetermined time In step S44, the reception of the function code is stopped, the operation state is switched from the activation state to the standby state, and the process returns to step S41. If the function code is transmitted within a predetermined time, the process proceeds to step S47 and the transmission is performed. The operation such as unlocking or the like indicated by the received function code is performed by the control unit 21e.

The control of the microcomputer 21 at the time of remote control using the key 7 is the same as in the first embodiment, and the description is omitted.

As described above, also in the present embodiment, the on-vehicle keyless entry device 1 can be remotely controlled by any of the conventionally used key 7 having a built-in transmitter and the portable telephone 91. Therefore, it is possible to flexibly respond to the request of the operator, and even if the key 7 is lost or the vehicle door is locked while being left in the vehicle, the vehicle door and the vehicle door can be locked by the mobile phone 91. It can unlock the trunk.

Further, since the on-vehicle keyless entry device 1 can be remotely operated by the ordinary portable telephone 91, if the key is lost or the vehicle door is locked while the key is left in the vehicle, the operation is not performed. Even if the user does not carry the mobile phone himself, he can borrow the mobile phone from the surrounding people to unlock the vehicle door, and there is no need to add any special function to the mobile phone, The used keyless entry system can be configured at low cost.

Further, the ID code included in the code signal transmitted from the mobile phone 91 is
Only when the ID code matches the ID code stored in advance in M21b, the predetermined unlocking operation indicated by the transmitted function code is performed by the on-vehicle keyless entry device 1, so that the ordinary telephone number is used. It is possible to prevent the in-vehicle keyless entry device 1 from reacting at the time of transmission of information, and to prevent a person other than the vehicle owner from remotely operating the in-vehicle keyless entry device for an unauthorized purpose. it can.

Further, since the activation instruction code, ID code and function code as unlocking codes are set differently from the telephone number code used, remote control of the on-vehicle keyless entry device by the portable telephone 91 is performed. When doing so, it is possible to prevent a telephone from being connected to another telephone.

In each of the above embodiments, the antenna 9 and the receiving circuit 11 for receiving the radio signal transmitted from the key 7 having the built-in transmitter are provided in the on-vehicle keyless entry device 1, but they are not required. In this case, the antenna 9 and the receiving circuit 11 may be omitted. Alternatively, instead of the antenna 9 and the receiving circuit 11, an infrared receiving means for receiving infrared light for keyless transmission emitted from a transmitter built in a conventional key or key holder may be provided.

[0066]

As described above, according to the first aspect of the present invention, even if a key is lost or a vehicle door is locked while being left in a vehicle, the vehicle can be used by a mobile phone. The door can be unlocked.

Further, since the code signal for instructing unlocking in the portable telephone is transmitted by the same radio signal as the radio signal for transmitting the communication contents,
There is no need to change the configuration of the transmission circuit etc. of the mobile phone,
It can be implemented at low cost.

According to the second aspect of the present invention, the function transmitted only when the ID code included in the code signal transmitted from the portable telephone coincides with the ID code stored in the control means in advance. Since the predetermined unlocking operation indicated by the code is performed, it is possible to prevent the in-vehicle keyless entry device from reacting when transmitting a telephone number or the like from the mobile phone, and also to prevent a person other than the owner of the vehicle from responding. It is possible to prevent an object from being remotely operated for the in-vehicle keyless entry device for an unauthorized purpose.

According to the third aspect of the present invention, since the code signal for instructing unlocking is composed of a keyless transmission signal tone different from a telephone number transmission signal tone, a portable telephone can be used. When performing remote control of the in-vehicle keyless entry device, it is possible to prevent a code signal transmitted from the mobile phone from accidentally connecting the telephone to another phone.

According to the fourth aspect of the present invention, the code signal for instructing unlocking is constituted by the same signal tone as that used for transmitting the telephone number. By performing the same key input as when making a telephone call, it is possible to remotely control the on-vehicle keyless entry device. For this reason, if the key is lost or the vehicle door is locked with the key left in the car, even if the operator himself does not carry the mobile phone, he or she can borrow a normal mobile phone from people around him. Thus, the vehicle door can be unlocked, and there is no need to add any special function to the mobile phone, and the keyless entry system using the mobile phone can be configured at low cost.

According to the fifth aspect of the present invention, since the code used for the code signal for instructing unlocking is set differently from the telephone number code used, the keyless on-vehicle is provided by the portable telephone. When performing remote control of the entry device, it is possible to prevent a telephone from being connected to another telephone.

According to the invention described in claim 6, even if the key is lost or the vehicle door is locked while being left in the vehicle, the vehicle door is unlocked by the portable telephone. Can be.

Further, since the signal tone for keyless transmission and the signal tone for telephone number transmission are transmitted in the same transmission format and by the same transmission means, a keyless transmission function is added to a conventional ordinary portable telephone. In this case, there is no need to change the transmission means and the like, and the keyless transmission function can be provided by a simple change.

According to the seventh aspect of the present invention, the operation mode of the portable telephone can be switched with one touch by operating the mode switch.

According to the eighth aspect of the present invention, the input means has different lighting colors between the telephone mode and the keyless mode.
Alternatively, since push buttons that are lit in different lighting modes are provided, it is possible to easily recognize which operation mode is set.

[Brief description of the drawings]

FIG. 1 is a block diagram of an in-vehicle keyless entry device according to a first embodiment of the present invention.

FIG. 2 is a block diagram of the mobile phone according to the first embodiment of the present invention.

FIG. 3 is a plan view of the mobile phone of FIG. 2;

FIG. 4 is a flowchart showing control of a microcomputer provided in the mobile phone of FIG. 2;

5 is a flowchart showing control of a microcomputer provided in the on-vehicle keyless entry device in FIG. 1 when remote control is performed by the mobile phone in FIG. 2;

FIG. 6 is a block diagram of a mobile phone constituting a keyless entry system together with an in-vehicle keyless entry device according to a second embodiment of the present invention.

FIG. 7 is a plan view of the mobile phone shown in FIG. 6;

FIG. 8 is a flowchart showing control of a microcomputer provided in the vehicle-mounted keyless entry device of the second embodiment when a remote operation is performed by the mobile phone of FIG. 6;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 In-vehicle keyless entry device 3 Antenna 5 Receiving circuit 21 Microcomputer 13,15 Actuator 51 Cellular phone 53 Dial key 57 Telephone key 59 Keyless key 65b ROM 65c Mode switching unit 65d First signal tone generation unit 65e Second signal tone generation unit 71 Transmission / reception Circuit 73 Antenna 91 Mobile phone

Continued on the front page (51) Int.Cl. ⁶ Identification code FI H04Q 9/00 301 H04B 7/26 V

Claims (8)

[Claims] 1. An in-vehicle keyless entry device mounted on a vehicle for unlocking a vehicle door, comprising: a receiving unit capable of receiving a radio signal for transmitting a call content transmitted from a mobile phone; A driving unit for performing locking, a predetermined key transmitted from the mobile phone along with a predetermined key input for instructing unlocking performed by the mobile phone on the radio signal received by the receiving unit. Control means for detecting the presence of the code signal, detecting the code signal, and controlling the driving means based on the detected code signal to unlock the vehicle door. In-vehicle keyless entry device. 2. The code signal according to claim 1, further comprising:
The control means includes a D code and a function code for instructing a predetermined unlocking operation, wherein the control means matches the ID code included in the code signal with an ID code stored in advance by the control means. The in-vehicle keyless entry device according to claim 1, wherein the predetermined unlocking operation indicated by the function code is performed through the driving unit only when the operation is performed. 3. The code signal transmitted from the mobile phone comprises a keyless transmission signal tone different from a signal tone used for transmitting a telephone number in the mobile phone. 2. The on-vehicle keyless entry device according to 1. 4. The mobile phone according to claim 1, wherein the code signal transmitted from the mobile phone is composed of the same signal tone as that used for transmitting a telephone number in the mobile phone. In-vehicle keyless entry device. 5. A code used for the code signal,
The on-vehicle keyless entry device according to claim 4, wherein the setting is made different from the telephone number code used. 6. A mobile phone for transmitting and receiving communication contents by communication radio waves, comprising: input means for inputting a telephone number, a mode switching command, and an unlock code for instructing a predetermined unlocking operation; In response to a mode switching command input through the means, a telephone mode for transmitting / receiving the contents of the call by the communication radio wave, and the unlock code to an on-vehicle keyless entry device mounted on a vehicle for unlocking a vehicle door. A mode switching unit for switching between a keyless mode for transmitting by the communication radio wave, and a telephone indicating the input telephone number when the telephone number is input through the input unit in a state where the telephone mode is switched. First signal tone generating means for generating a signal tone for transmitting a number, and the input in a state switched to the keyless mode When the unlock code is input through a step, a second signal tone generating means for generating a keyless transmission signal tone different from the telephone number transmission signal tone indicating the input unlock code, Transmitting means for transmitting the signal sound created by the first and second signal sound creating means in the same transmission format by the communication radio wave. 7. The mobile phone according to claim 6, wherein the input unit includes a dedicated mode switch for inputting the mode switch command. 8. The input device according to claim 6, wherein the input unit includes a push button that is lit in a different lighting color or in a different lighting mode between the telephone mode and the keyless mode. Mobile phone.