JP3693823B2 - Dial lock release system for car phone and keyless unit - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an in-vehicle telephone dial lock releasing system and a keyless unit for releasing an in-vehicle telephone dial lock using a keyless unit remote control transmitter.
[0002]
[Prior art]
In recent years, car phones and mobile phones have become widespread, and calls are often made while moving in vehicles. Moreover, in order to ensure safety when driving a vehicle, a hands-free unit that is connected to a car phone or a mobile phone and can talk without having a receiver has been put into practical use.
[0003]
In recent years, it has a function to communicate with an information center outside the vehicle via a car phone or a mobile phone, and to acquire information such as the latest traffic information, accident information, parking lot availability, etc. and inform the user. Navigation devices have also been put into practical use.
Incidentally, a dial lock function is provided in a car phone or a mobile phone in order to prevent others from using it without permission. When using the dial lock function, the user registers an arbitrary password in advance in the telephone. When the dial lock function is turned on by pressing a predetermined button, it is impossible to make a call unless a password is entered. If you leave the vehicle on the road or in a parking lot where many people come and go for a long time, the phone (car phone or mobile phone: hereinafter referred to as “vehicle phone”) may be dial-locked. It is preferable.
[0004]
[Problems to be solved by the invention]
However, when a vehicle-mounted telephone is dial-locked, it is necessary to input a personal identification number even when the user uses it, which is complicated.
As described above, an object of the present invention is to provide a dial lock release system for an in-vehicle phone that allows the user to release the dial lock of the in-vehicle phone without entering a personal identification number and prevents others from using the in-vehicle phone without permission. And a keyless unit for use in the dial lock release system.
[0005]
[Means for Solving the Problems]
The above-described problems include a remote control transmitter that can transmit a door lock release signal, a receiver that can receive the door lock release signal output from the remote control transmitter, and a dial lock that stores a dial lock release code of a telephone. A release code storage unit; a door lock release unit that releases a door lock of the vehicle when the reception unit receives the door lock release signal; and a dial lock release code storage unit that receives the door lock release signal at the reception unit. A dial lock release code output means for reading the dial lock release code stored in the telephone and outputting it to the telephone, wherein the dial lock release code output means is configured to receive the door lock release signal at the receiving unit. When the vehicle accessory power is turned on after receiving The unlock code to solve the keyless unit and outputs to the phone.
[0006]
In this case, it is preferable that the dial lock release code output means outputs the dial lock release code only when the door lock release signal is received from a specific remote control transmitter.
[0007]
The operation of the present invention will be described below.
[0008]
The keyless unit of the present invention has a dial lock release code storage unit for storing a dial lock release code. When the door lock release signal is transmitted from the remote control transmitter, and the door lock release signal is received by the receiver, the door lock release means releases the vehicle door lock, and the dial lock release code output means The dial unlock code is read from the unlock code storage unit and output to the telephone. As a result, the dial lock of the telephone is released.
[0009]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.
(First embodiment)
FIG. 1 is a schematic diagram showing a dial lock release system for an in-vehicle phone according to a first embodiment of the present invention.
[0010]
The in-vehicle telephone dial lock release system according to the present embodiment includes a telephone (mobile phone) 11, a hands-free unit 12, a main body 13 of a keyless unit, and a remote control transmitter 14. The telephone 11 is connected to the handsfree unit 12 by a cable 15a. The telephone number is registered in advance in the telephone 11 by the user, and when a predetermined button is pressed, the dial lock function of the telephone 11 is activated.
[0011]
The hands-free unit 12 is connected to a speaker 12a and a microphone 12b, and enables a call without the telephone 11. The hands-free unit 12 is connected to the keyless unit main body 13 via a cable 15b. The keyless unit main body 13 locks and unlocks the door of the vehicle in accordance with a signal sent from the remote control transmitter 14.
[0012]
The hands-free unit 12 is supplied with driving power from an accessory (ACC) power line of the vehicle, and the keyless unit main body 13 is supplied with driving power directly from an in-vehicle battery (not via an ignition switch). Further, the keyless unit main body 13 is connected to the accessory power supply line and can detect the state of the ignition switch.
[0013]
FIG. 2 is a block diagram showing the structure of the remote control transmitter 14. The remote control transmitter 14 includes a control unit 21, an ID code storage unit 22, a memory 23, an operation unit 24, and a radio wave transmission unit 25. The control unit 21 is configured by a microcomputer. The memory 23 stores a program for operating the control unit 21.
[0014]
The ID code storage unit 22 stores an ID code unique to the remote control transmitter 14. That is, in the keyless system, a plurality of remote control transmitters 14 are attached to one keyless unit main body 13 so that, for example, one vehicle can be used by a plurality of people. Each remote control transmitter 14 is written with a unique ID code. When transmitting a signal from the remote control transmitter 14 to the keyless unit body 13, the control unit 21 reads the ID code from the ID code storage unit 22, and adds the ID code to the signal to be transmitted. Normally, the ID code is written at a store.
[0015]
The operation unit 24 is provided with a lock button, a release button, and the like. The controller 21 generates and outputs a door lock signal when the lock button of the operation unit 24 is pressed, and generates and outputs a door lock release signal when the release button is pressed. The radio wave transmission unit 25 transmits the signal output from the control unit 21 on the radio wave. In the present embodiment, a signal is transmitted from the remote control transmitter 14 to the keyless unit main body 13 via radio waves. However, the signal may be transmitted via light (infrared rays) or sound waves.
[0016]
FIG. 3 is a block diagram showing the structure of the keyless unit main body 13. The keyless unit body 13 includes a control unit 31, an ID code storage unit 32, a password storage unit 33, a memory 34, a door key opening / closing relay 35, a driver 36, a radio wave reception unit 37, an interface circuit 38, and a connector 39.
The control unit 31 is configured by a microcomputer. The memory 34 stores a program for operating the control unit 31.
[0017]
An ID code of the remote control transmitter 14 is registered in the ID code storage unit 32. Registration of the ID code in the ID code storage unit 32 is also usually performed at a store. When the control unit 31 receives a signal from the remote control transmitter 14, the control unit 31 checks the ID code added to the signal. When the ID code is registered in the ID code storage unit 32, the control unit 31 performs an operation according to the received signal. If it is not registered in the ID code storage unit 32, the received signal is ignored.
[0018]
The personal identification number storage unit 33 stores a personal identification number (dial lock release code) for releasing the dial lock of the telephone set 11. The password is written using a predetermined device at a store, for example. The remote control transmitter 14 is provided with a function (number input function) for inputting a password, and the password is transmitted from the remote control transmitter 14 to the keyless unit body 13 and stored in the password storage unit 33. May be.
[0019]
The door key opening / closing relay 35 is connected to a door switch (not shown) of the vehicle and operates the door switch to lock or release the door of the vehicle. The driver 36 drives the door key opening / closing relay 35 based on a signal output from the control unit 31. The radio wave receiving unit 37 receives the radio wave transmitted from the remote control transmitter 14 and transmits it to the control unit 31. The interface circuit 38 is a circuit for transmitting a signal output from the control unit 31 to the hands-free unit 12, and a cable 15b (see FIG. 1) is connected to the connector 39.
[0020]
FIG. 4 is a block diagram showing the configuration of the hands-free unit 12. The hands-free unit 12 includes a control unit 41, a memory 42, a DSP (digital signal processor) 43, a D / A (digital / analog) converter 44, an amplifier 45, an A / D (analog / digital) converter 46, and an interface circuit. 47 and connectors 48a and 48b.
[0021]
The control unit 41 is configured by a microcomputer. The memory 42 stores a program for operating the control unit 41. The DSP 43 is a semiconductor device that processes (encodes and decodes) an audio signal. The audio signal input from the microphone 12 a is converted into a digital signal by the A / D converter 46 and input to the DSP 43. The DSP 43 encodes the digital signal input from the A / D converter 46 and transmits it to the telephone 11 via the control unit 41 and the interface circuit 47. A signal output from the telephone 11 is input to the DSP 43 via the interface circuit 47 and the control unit 41 and is combined by the DSP 43. Then, after being converted into an analog signal by the D / A converter 44 and amplified by the amplifier 45, the signal is input to the speaker 12b to drive the speaker 12b.
[0022]
The cable 15a is connected to the connector 48a, and the cable 15b is connected to the connector 48b (see FIG. 1).
FIG. 5 is a flowchart showing an operation when a door lock release signal is transmitted from the remote control transmitter 14 in the dial lock release system of the in-vehicle telephone according to the present embodiment. However, the user locks the door of the vehicle after dial-locking the telephone 11.
[0023]
First, in step S <b> 11, the control unit 31 of the keyless unit main body 13 maintains a reception standby state for a signal from the remote control transmitter 14. When the signal from the remote control transmitter 14 is received, the process proceeds to step S12, where the ID code added to the received signal is compared with the ID code registered in the ID code storage unit 32. As a result, if the ID code added to the received signal does not match the ID code registered in the ID code storage unit 32, the received signal is ignored and the process returns to step S11.
[0024]
On the other hand, when the ID code added to the received signal is registered in the ID code storage unit 32 in step S12, the process proceeds to step S13. Then, the received signal is decoded. As a result, if the received signal is a door lock release signal, the process proceeds to step S14. If the received signal is another signal, an operation corresponding to the signal is executed. Here, it is assumed that the received signal is a door lock release signal.
[0025]
In step S14, the control unit 31 drives the door key opening / closing relay 35 via the driver 36 to release the door lock of the vehicle.
After that, the process proceeds to step S15, and when the key is inserted into the ignition switch of the vehicle and the ACC is turned on (accessory power supply system on) or the ignition is turned on (ignition system power on), the control unit 31 stores the password from the code number storage unit 33. The number is read out and the password is transmitted to the telephone set 11 through the hands-free unit 12. Thereby, the dial lock of the telephone 11 is released.
[0026]
As described above, in the in-vehicle telephone dial lock release system according to the present embodiment, when the door lock is released by the remote control transmitter 14, the dial lock of the telephone 11 is also released, so that the user directly inputs the personal identification number to the telephone 11. There is no need to do so, and usability is significantly improved. Also, if the other person borrows the remote control transmitter 11 from the user or does not directly input the telephone number by telling the personal identification number, the telephone 11 can be used even if the door lock of the vehicle can be released with a combination key or the like. Therefore, it is possible to avoid using the telephone 11 without the user's permission.
[0027]
As described above, a plurality of remote control transmitters 14 are usually attached to one keyless unit main body 13, and a specific remote control transmitter 14 (a specific ID code is selected from among the plurality of remote control transmitters 14). The dial lock of the telephone 11 may be released only when the door lock is released by a registered remote control transmitter. In this case, the other remote control transmitter 14 can release the door lock, but the dial lock of the telephone 11 is not released.
[0028]
(Other embodiments)
In the first embodiment, the case where a mobile phone is used as the in-vehicle phone 11 has been described. However, as shown in FIG. 6, the present invention can also be applied to a car phone 17 having a hands-free function. In this case, the dial lock release code output from the keyless unit main body 13 is directly transmitted to the car phone 17. The microphone 12a and the speaker 12b are connected to the car phone 17.
[0029]
In the first embodiment, the case where the user presses a predetermined button of the telephone 11 to perform dial lock has been described. However, a dial lock code storage unit is provided in the keyless unit main body 13 so that the remote control transmitter 14 When a door lock signal is transmitted to the keyless unit main body 13, a dial lock code may be output from the keyless unit main body 13 to the telephone set 11 so that the telephone set 11 is automatically dial locked.
[0030]
Furthermore, in the first embodiment, the case where the code number storage unit 33 is provided in the keyless unit main body 13 has been described. However, the code number storage unit may be provided in the remote control transmitter 14 or the hands-free unit 12. . For example, when the remote control transmitter 14 is provided with a password storage unit, when the door lock release signal is output from the remote control transmitter 14, the control unit 21 reads the password from the password storage unit and outputs the door lock release signal. Append to The control unit 31 of the keyless unit main body 13 extracts the code number from the signal received by the receiving unit 37 and transmits it to the telephone set 11. Thereby, the same effect as the first embodiment can be obtained.
[0031]
Furthermore, in the first embodiment, the keyless unit main body 13 merely locks and releases the door, but a sensor is attached to each part of the vehicle, and a warning is given if the window glass is broken or vibration is applied. A so-called security function may be added.
[0032]
【The invention's effect】
As described above, according to the present invention, when a door lock release signal is output from the remote control transmitter of the keyless unit, the door lock of the vehicle is released and the dial lock of the in-vehicle phone is released. There is no need to enter a personal identification number on the telephone, and the usability of the dial lock function of the in-vehicle telephone is remarkably improved.
[Brief description of the drawings]
FIG. 1 is a schematic diagram showing a dial lock release system for an in-vehicle telephone according to a first embodiment of the present invention.
FIG. 2 is a block diagram showing a structure of a remote control transmitter.
FIG. 3 is a block diagram showing a structure of a keyless unit main body.
4 is a block diagram showing a configuration of the hands-free unit 12. FIG.
FIG. 5 is a flowchart showing the operation of the dial lock release system for the in-vehicle phone according to the first embodiment.
FIG. 6 is a schematic diagram showing an example of a dial lock release system for an in-vehicle phone according to another embodiment.
[Explanation of symbols]
11 Telephone,
12 hands-free unit,
13 Keyless unit body,
14 Remote control transmitter,
21, 31, 41 control unit,
22, 32 ID code storage unit,
23, 34, 42 memory,
24 operation unit,
25 Radio wave transmitter,
33 PIN code storage unit,
35 Door key open / close relay,
37 radio wave receiver 44 D / A converter,
46 A / D converter.

Claims (2)

A remote control transmitter capable of transmitting a door unlock signal;
A receiving unit capable of receiving the door lock release signal output from the remote control transmitter;
A dial lock release code storage unit for storing a dial lock release code of the telephone;
Door unlocking means for releasing the door lock of the vehicle upon receipt of the door unlock signal at the receiver;
A keyless unit comprising: a dial lock release code output means for reading the dial lock release code stored in the dial lock release code storage unit and outputting it to the telephone when the receiving unit receives the door lock release signal; ,
The dial lock release code output means, after receiving the door unlocking signal by the reception section, keyless unit and outputs the dial lock release code and the accessory power supply of the vehicle is turned on to the phone . The keyless unit according to claim 1 , wherein the dial lock release code output means outputs the dial lock release code only when the door lock release signal is received from a specific remote control transmitter.

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