JP4367736B2 - Hands-free in-vehicle telephone device, control method therefor, and mobile communication system - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an improvement in mobile communication technology using a mobile phone or a hands-free in-vehicle phone device, and in particular, by automatically switching the operating state of the mobile phone, The use is surely deterred.
[0002]
[Prior art]
In recent years, with the development of digital communication technology, mobile phones such as mobile phones and PHS are rapidly spreading. These mobile phones are used not only for voice calls but also for data communication such as Internet connection. Both are collectively referred to as communication, and the outline of communication by the mobile phone is shown by a simplified model.
[0003]
First, the area where the mobile phone can be used is composed of communication areas of scattered base stations. Here, the “base station” is a radio wave transmission / reception facility having an antenna, and a communicable range of each base station is called a cell. In the present application, the term “base station” includes individual communication satellites in portable telephones using communication satellites.
[0004]
In an area composed of such communicable areas of base stations, communication by mobile phone is connected to the nearest base station by radio waves, and a communication network connecting base stations and other exchange facilities is the communication destination. Provides services such as circuit switching and packet switching.
[0005]
The individual terminals of the mobile phone are mutually identified by identification information such as a preset telephone number and terminal ID. Then, information on which base station cell each individual terminal is in is updated at any time by a location registration process in which the terminal sends identification information to the base station and receives a response. The location registration information indicating which cell the terminal is currently in is stored in a storage area on the network side called a home memory that is associated with the terminal in advance, and another base station or exchange that tries to call the terminal. Acquires the location registration information of the terminal from the corresponding home memory.
[0006]
Specifically, transmission from the terminal is performed to the base station that succeeded in location registration last, and the call from the network side to the terminal starts from the base station of the cell in which the terminal succeeded in location registration last. . As the terminal moves, the connected base stations are sequentially switched, and this switching is called handover.
[0007]
In this way, mobile phones can be worn and carried around, and can also be used while traveling by train or automobile by handover, but for use and calls while driving a car, it is hands-free for safety. A type in-vehicle telephone device is used. In other words, this hands-free in-vehicle telephone device is also simply called a hands-free device, and in order to improve safety and usability, the mobile phone main body is held with one hand on the ear (the use of the mobile phone main body in this application). Called).
[0008]
Here, the conventional hands-free device includes an adapter for connecting a mobile phone, a microphone, a speaker, and the like, and performs a call using the mobile phone connected to the adapter using the microphone and the speaker. When such a hands-free device is used, it is possible to use almost no hand other than the steering wheel operation during driving, which is particularly effective in improving safety.
[0009]
By the way, in the prior art as described above, it is typically necessary to connect the hands-free device and the portable phone by wire such as a signal cable. For example, when a driver wants to use a hands-free device while driving, when he / she sits in the driver's seat, he / she takes out his / her mobile phone, connects it to the adapter of the hands-free device, and puts the hands-free device in an operating state. In addition, it was necessary to start the engine.
[0010]
Japanese Patent Laid-Open No. 10-327453 is cited as a prior art relating to the connection between a hands-free in-vehicle telephone device and a portable telephone. In this prior art, a wireless communication device having a frequency band different from the frequency band of the mobile phone is provided in a battery pack or a protective case of the mobile phone, and without a physical connector connection between the hands-free device and the mobile phone, Calls and calls from hands-free devices are relayed to mobile phones.
[0011]
[Problems to be solved by the invention]
However, the prior art as described above does not automatically switch the operating state before driving, such as turning on the hands-free device or not ringing the mobile phone body. Here, as an example of preventing the ringing tone of the mobile phone main body from sounding, in addition to turning off the power, switching to the drive mode can be considered.
[0012]
In the drive mode, the mobile phone does not perform normal ringing operations such as ringtones for ringtones or ringing of vibrators, but it can give voice notifications that it is driving and accept message recording by the answering machine function. It is an operating state.
[0013]
And since the prior art did not automatically switch the required operating state, not only the driver forgets to connect the mobile phone to the hands-free device, but also forgets to switch the hands-free phone device In some cases, it was not possible to use it.
[0014]
In such a case, even if you are driving, if your mobile phone body rings when you receive an incoming call, it will unintentionally reflexively respond normally as usual due to the habit of stationary or walking, In some cases, the handset was used by hand. In this case, as a result, you can hold the mobile phone body with one hand and operate the handle with the other hand, or you can be distracted by paying attention to the operation of the mobile phone and the content of the conversation in addition to the handle rotation. There was also sex. As described above, since the use of the mobile phone main body during driving hinders driving, a mobile communication technology that improves driving safety has been awaited.
[0015]
The present invention has been proposed in order to solve the above-described problems of the prior art, and its purpose is to use the mobile phone main body during operation by automatically switching the operating state of the mobile phone. Mobile communication technology that reliably deters C Hands-free in-vehicle telephone device and control method thereof And Mobile communication system Mu Is to provide. Another object of the present invention is to provide a mobile communication technology that minimizes damage when an abnormality occurs by detecting an abnormality such as an accident and making an automatic emergency call.
[0016]
[Means for Solving the Problems]
In order to achieve the above object, a first aspect of the present invention provides a communication means for communicating with the portable telephone in a hands-free in-vehicle telephone apparatus installed in a vehicle and operating in cooperation with the portable telephone. A microphone and a speaker for calling, a means for detecting that the engine of the vehicle has been started, and a predetermined control signal from the communication means when the start is detected. Means for switching the hands-free in-vehicle telephone device to an operating state for transmitting to a telephone and notifying an incoming call; Having means for communicating with the base station It is characterized by.
Claim 6 The invention of the invention of claim 1 In the control method for a hands-free in-vehicle telephone device that is installed in a vehicle and operates in cooperation with a mobile phone, it is detected that the engine of the vehicle has been started. And a step for transmitting a predetermined control signal to the portable telephone when the start is detected and switching the hands-free in-vehicle telephone device to an operation state for notifying an incoming call. Operating state switching Steps, The operation state switching step is a process that allows the base station communication function of the hands-free in-vehicle telephone device to communicate independently with the base station. It is characterized by including.
Like the above Claim 1,6 In the present invention, since a hands-free in-vehicle telephone device can perform operations such as direct incoming / outgoing calls and location registration with a base station as an alternative terminal of a mobile phone without going through a mobile phone. Is simplified, the connection status and sound quality are stabilized, the battery of the mobile phone is saved, and the backup for the failure of the mobile phone or the hands-free in-vehicle telephone device is also possible. More specifically, for example, in a mobile communication service network system, a mobile phone and a hands-free device are registered with different terminal IDs for the same telephone number, and usually a mobile phone stored in the corresponding home memory. The mobile phone receives an incoming call based on the terminal ID of the mobile phone and information on the final location registration cell. On the other hand, when receiving a predetermined switching signal from the mobile phone or receiving a location registration from the hands-free in-vehicle phone device, the information in the home memory is replaced with the terminal ID of the hands-free in-vehicle phone device, Hands-free in-vehicle telephone devices are targeted for incoming calls.
[0017]
Claim 2 The invention of claim 1 In the hand-free in-vehicle telephone device described above, the transmission output of the communication means for communicating with the mobile phone is sequentially increased, and the control signal is transmitted and received in advance to and from the mobile phone that responds first. It is characterized by being configured to perform a predetermined sequence.
Claim 7 The invention of claim 2 In the control method of the hands-free in-vehicle telephone device according to claim 11, the transmission output for communicating with the portable telephone is sequentially increased, and the portable telephone that responds first is obtained. A predetermined sequence including transmission and reception of the control signal is performed with a telephone.
Claim 2,7 In this invention, an antenna for the hands-free device to communicate with the mobile phone is provided at the corner of the passenger seat or the like to increase the transmission output stepwise. As a result, even in the case of multiple passengers, the mobile phone worn by the driver is closest to the antenna, so it responds first, and it switches to a state that does not report incoming calls such as drive mode according to a predetermined sequence. The operating state of the mobile phone other than the hand does not unexpectedly switch to the drive mode.
[0018]
Claim 3 The invention of claim 1 or 2 In the hands-free in-vehicle telephone device according to claim 1, a means for detecting that the engine is stopped, and a second control signal that is determined in advance when the stop is detected from the communication means. And a means for stopping the hands-free in-vehicle telephone device while transmitting to the portable telephone.
Claim 8 The invention of claim 3 The invention from the perspective of a method, and claims 6 or 7 In the control method of the hands-free in-vehicle telephone device according to claim 1, a step for detecting that the engine has been stopped, and a second control signal determined in advance when the stop has been detected, And a step for stopping the hands-free in-vehicle telephone device.
Claim 3,8 According to the invention, when the engine is stopped, the second control signal is automatically sent to the mobile phone to return to the state in which the incoming call is notified, so that the driver forgets the return operation after driving and the necessary incoming call. I won't miss it.
[0019]
Claim 4 The invention of claim 1-3 The hands-free in-vehicle telephone device according to any one of the above is characterized in that when a predetermined condition is satisfied, a call is made to a predetermined communication destination.
Claim 4 In this invention, it is possible to detect damages such as accidents based on gravitational acceleration, etc., and to make emergency calls automatically from the hands-free device, thereby minimizing damage in the event of an abnormality. .
[0020]
Contract The mobile communication system according to claim 5 is a claim. 1 to 4 A hands-free in-vehicle telephone device according to any one of A first communication means for communicating with the base station, a second communication means for communicating with a hands-free in-vehicle telephone device installed in the vehicle, and a control signal predetermined from the second communication means A mobile phone comprising: means for switching the mobile phone to an operating state that does not notify an incoming call when receiving It is provided with.
Claim 5 According to the invention, the operating state of the mobile phone is automatically switched even if the driver does not consciously carry out the active operation while wearing the mobile phone. Is reliably deterred. That is, a predetermined control signal like a wireless LAN is automatically sent from the hands-free device to the portable phone carried by the driver in conjunction with the start of the engine immediately before the operation. Switch to power off or drive mode. Such an easy and simple construction eliminates the need for switching to the hands-free device, and improves the usability and convenience of the hands-free device and the mobile communication system. In addition, since the mobile phone does not ring or vibrate during driving, the use of the mobile phone main body during driving is surely suppressed, and driving safety is improved.
[0021]
DETAILED DESCRIPTION OF THE INVENTION
Next, an embodiment (referred to as an embodiment) of the present invention will be specifically described with reference to the drawings. Note that portions of the present embodiment relating to data processing and control can be realized by controlling a computer with software. As for the software in this case, the conventional technology is also used in common with the conventional technology, and the operational effects of the present invention are realized by utilizing the physical hardware resources of the computer.
[0022]
In this case, various modes such as a specific format of hardware and software, a range to be processed by software, and the like can be considered, and a computer-readable recording medium in which such software is recorded is also an aspect of the present invention. . Therefore, in the following, the present invention and the embodiments will be described using virtual circuit blocks that realize the functions related to the present invention and the embodiments.
[0023]
[1. Configuration of First Embodiment]
First, in the first embodiment, a mobile phone worn by a driver, a hands-free device installed in advance in a vehicle, a mobile communication system and a mobile communication service network using these in addition to these control methods The present invention relates to a system, and can be grasped as a possible recording medium by a computer in which control software for performing such control is recorded.
[0024]
[1-1. (Rough configuration)
That is, the mobile communication system in the first embodiment includes a mobile phone 1 and a hands-free device 2 as shown in the functional block diagram of FIG. Among them, the hands-free device 2 is a hands-free in-vehicle phone device that is installed in advance in the vehicle and operates in cooperation with the mobile phone 1, and is a portable device that is installed in the vehicle and controls the mobile phone 1. It can also be understood as a control device for a type telephone.
[0025]
The mobile phone 1 includes a power supply unit 11 including a lithium ion battery, a base station communication unit 12, an in-vehicle communication unit 13, an operation state switching unit 14, and a switch 15. The hands-free device 2 includes an engine start key switch 20, a power switch 21, a base station communication unit 22, an in-vehicle communication unit 23, an operation state switching unit 24, a power state detection control unit 25, and a call The microphone 26 and the speaker 27 are provided.
[0026]
Among these, the engine start key switch 20 is a switch for starting the engine of the vehicle by operating the ignition key. The power switch 21 is a switch that works as the main power source of the hands-free device 2 in cooperation with the engine start key switch 20.
[0027]
[1-2. Configuration mainly for communication)
Of the above-described parts, first, the base station communication units 12 and 22 provided in the mobile phone 1 and the hands-free device 2 respectively communicate for communicating independently with a base station outside the vehicle (referred to as CS). Means. The in-vehicle communication units 13 and 23 provided in the mobile phone 1 and the hands-free device 2 are means for the mobile phone 1 and the hands-free device 2 to communicate with each other.
[0028]
Here, each of the base station communication units 12 and 22 performs communication, that is, voice communication or PIAFS, according to the first communication specification with the base station CS installed outside the vehicle by a carrier such as a mobile communication service company. Data communication such as data communication and packet switching is performed. On the other hand, the in-vehicle communication units 13 and 23 communicate with each other in accordance with a second communication specification different from the first communication specification. As the second communication specification, for example, a frequency in the 2.4 GHz band is used. It is possible to use a short-range communication function such as Bluetooth or other weak wireless devices. The base station communication unit 22 and the in-vehicle communication unit 23 of the hands-free device 2 are collectively referred to as an in-vehicle phone unit 3.
[0029]
[1-3. Configuration mainly for switching the operating state)
Next, the power state detection control unit 25 of the hands-free device 2 reads the state of the power switch 21 that works in conjunction with the engine start key switch 20 to detect that the vehicle engine has been started. It is. The operation state switching unit 24 of the hands-free device 2 switches the mobile phone 1 and the hands-free device 2 to a predetermined operation state when the start of the engine is detected by the power state detection control unit 25. Means.
[0030]
Specifically, the operation state switching unit 24 of the hands-free device 2 transmits a predetermined first control signal from the in-vehicle communication unit 23 to the mobile phone 1 when engine start is detected, By controlling the power switch 21, the hands-free device 2 is switched to an operation state for notifying an incoming call such as an incoming call waiting state.
[0031]
On the other hand, when the in-vehicle communication unit 13 receives the first control signal, the operation state switching unit 14 of the mobile phone 1 notifies the incoming call such as a drive mode or a power-off state by controlling the switch 15. This is means for switching the portable telephone 1 to an operating state that does not. For example, the switch 15 cuts off the power supply from the power supply unit 11 when the mobile phone 1 is switched to a power-off state as an operation state in which an incoming call is not notified.
[0032]
[1-4. Other configurations
Further, when the hands-free device 2 communicates with the mobile phone 1, the transmission output of the in-vehicle communication unit 23 is sequentially increased, and the first control signal is transmitted to and received from the mobile phone 1 that responds first. Is configured to perform a predetermined sequence (referred to as a switching sequence).
[0033]
Further, the power state detection control unit 25 of the hands-free device 2 is configured to detect that the engine has been stopped, and the operation state switching unit 24 of the hands-free device 2 has thus detected the engine stop. Sometimes, a predetermined second control signal for returning the mobile phone 1 to a state in which an incoming call is notified is transmitted from the in-vehicle communication unit 23 to the mobile phone 1 and the power switch 21 is controlled. Thus, the hands-free device 2 is configured to stop.
[0034]
In addition, the hands-free device 2 is preliminarily determined such as fire fighting or police when a predetermined condition is satisfied, for example, when a sensor provided on the vehicle body detects a gravitational acceleration or deformation of the vehicle body exceeding a predetermined value. It is configured to make a call to a communication destination.
[0035]
[2. Operation of First Embodiment]
The present embodiment configured as described above operates as follows. Here, FIG. 2 is a flowchart showing a processing procedure in the first embodiment. First, during normal times other than driving, the mobile phone 1 communicates with the base station CS outside the vehicle independently by the base station communication unit 12 regardless of the hands-free device 2, so that voice calls and data can be made. Used for communication.
[0036]
[2-1. (Changeover at engine start)
When the driver carrying the mobile phone 1 sits in the driver's seat and starts the engine of the vehicle by turning the engine start key switch 20 (step 1), a power switch linked to the engine start key switch 20 The main power of the hands-free device 2 is turned on by the action of 21 (step 2). In this case, the power state detection control unit 25 detects that the engine has been started or has been started by reading the state of the power switch 21 that works in conjunction with the engine start key switch 20.
[0037]
When engine start is detected in this way, a switching sequence for switching both of the hands-free device 2 and the portable telephone 1 to a predetermined operating state is started by the action of the operating state switching unit 24. (Step 3).
[0038]
In this switching sequence, for example, first, the operation state switching unit 24 of the hands-free device 2 transmits a predetermined first control signal from the in-vehicle communication unit 23 to the mobile phone 1. At this time, the hands-free device 2 sequentially increases the transmission output of the in-vehicle communication unit 23 and performs a switching sequence with the mobile phone 1 that responds first.
[0039]
In the mobile phone 1, when the in-vehicle communication unit 13 receives the first control signal, the operation state switching unit 14 controls the switch 15 so as not to notify an incoming call such as a drive mode or a power-off state. The portable telephone 1 is switched to (step 4). For example, the switch 15 cuts off the power supply from the power supply unit 11 when the mobile phone 1 is switched to a power-off state as an operation state in which an incoming call is not notified.
[0040]
Further, the operation state switching unit 24 controls the power switch 21 to switch the hands-free device 2 to an operation state for notifying an incoming call such as an incoming call waiting state (step 5). As a specific example of this switching operation, it is conceivable to start power supply to the base station communication unit 22 and cause the base station communication unit 22 to perform location registration.
[0041]
[2-2. Example of correspondence on the network side)
An example of the response by the mobile communication service network system for providing communication services to mobile terminals such as the mobile phone 1 and the hands-free device 2 in response to such switching of incoming calls is as follows. Can be considered. For example, on the network side, a plurality of terminals having different terminal IDs as identification information are registered in advance as the mobile phone 1 and the hands-free device 2 as terminals that may be used for the same telephone number.
[0042]
Usually, the mobile phone 1 is set as an incoming call target, and the mobile phone 1 receives an incoming call based on the terminal ID of the mobile phone 1 stored in the corresponding home memory, information on the final location registration cell, and the like. . On the other hand, when a predetermined switching signal is received from the mobile phone 1 or a location registration is received from the hands-free device 2, the information in the home memory is replaced with the terminal ID of the hands-free device 2, etc. And the hands-free device 2 is the incoming call target.
[0043]
[2-3. (Incoming and outgoing calls with hands-free equipment)
As described above, in a state where the incoming call target is switched from the mobile phone 1 to the hands-free device 2, the hands-free device 2 can communicate independently with the base station CS outside the vehicle by the base station communication unit 22, When there is a connection request such as incoming call from the base station CS (step 6), the call is received to the hands-free device 2 (step 7). Similarly, when there is a call outgoing operation from the driver (step 8), the call is sent from the hands-free device 2 to the base station CS outside the vehicle (step 9).
[0044]
[2-4. (Return to normal state)
When the driver stops the engine by operating the engine start key switch 20, the power switch 21 causes a state change such as a change in the voltage of a predetermined input line, but the main power supply of the hands-free device 2 is immediately turned on. Does not turn off. That is, during this time, the power supply state detection control unit 25 detects that the engine has been stopped by reading the state of the power switch 21 (step 10).
[0045]
When the engine stop is detected in this way, the procedure for returning both of the hands-free device 2 and the portable telephone 1 to the original operating state by the action of the operating state switching unit 24 (referred to as a return sequence). Is started (step 11). The return sequence and the switching sequence include necessary security checks, confirmation responses, cancellation / cancellation, retry, and the like.
[0046]
In this return sequence, the operation state switching unit 24 of the hands-free device 2 first controls the power switch 21 to stop the power supply to the base station communication unit 22, for example. Is shifted to a state where no notification is made (step 12). Subsequently, the operation state switching unit 24 of the hands-free device 2 transmits a predetermined second control signal from the in-vehicle communication unit 23 to the mobile phone 1.
[0047]
In the mobile phone 1, when the second control signal is received by the in-vehicle communication unit 13, the operation state switching unit 14 controls the switch 15, for example, to release the drive mode or turn on the power. Thus, the mobile phone 1 is returned to the state in which the incoming call is notified (step 13). After completion of such a return sequence, the operation state switching unit 24 of the hands-free device 2 controls the power switch 21 to turn off the main power of the hands-free device 2 (step 14).
[0048]
[2-5. Other operations)
In addition, the hands-free device 2 is preliminarily determined such as fire fighting or police when a predetermined condition is satisfied, for example, when a sensor provided on the vehicle body detects a gravitational acceleration or deformation of the vehicle body exceeding a predetermined value. Make a call to the other party.
[0049]
[3. Effects of the first embodiment]
As described above, in the first embodiment, the power state detection control unit 25 of the hands-free device 2, the operation state switching unit 24, the in-vehicle communication unit 23, the in-vehicle communication unit 13 of the mobile phone 1, and the operation state switching unit 14. The operation of the switch 15 or the like automatically switches the operating state of the mobile phone 1 even when the driver does not consciously perform positive operations while wearing the mobile phone 1. The use of the main body of the mobile phone 1 is surely suppressed.
[0050]
That is, a predetermined control signal like a wireless LAN is automatically sent from the hands-free device 2 to the portable phone 1 carried by the driver in conjunction with the start of the engine immediately before driving. Switches to, for example, power off or drive mode.
[0051]
Such an easy construction and simple configuration eliminates the need for switching to the hands-free device 2 and improves the usability and convenience of the mobile communication system including the hands-free device 2 and the mobile phone 1. Further, even when the mobile phone is placed in a pocket or bag, notification of an incoming call such as a ringing tone or a vibrator operating in the mobile phone 1 during driving is not performed. For this reason, the driver responds to incoming calls from the outside in a reflective manner, and does not interfere with driving such as operating the steering wheel with the other hand while holding the main body of the mobile phone 1 with one hand, and driving safety. Also improves.
[0052]
Further, in the first embodiment, due to the action of the base station communication unit 22 of the hands-free device 2, the hands-free device 2 can replace the base station CS as an alternative terminal of the mobile phone 1 without going through the mobile phone 1. Operations such as direct incoming / outgoing calls and location registration can be made between the two. For this reason, the configuration is simplified, the connection status and sound quality are stabilized, the battery of the mobile phone 1 is saved, and backup of the failure of the mobile phone 1 or the hands-free device 2 is also possible.
[0053]
Further, in the first embodiment, by gradually increasing the transmission output, the portable phone closest to the antenna is switched to a state in which the incoming call is not notified. Does not affect the operating state of
[0054]
In the first embodiment, when the engine is stopped, a second control signal is automatically sent to the mobile phone 1 to return to the state where the incoming call is notified, so that the driver can perform a return operation after driving. Forget and never miss a call.
[0055]
In the first embodiment, an abnormality such as an accident is detected based on gravitational acceleration, etc., and an emergency call is automatically made from a hands-free device to minimize damage when the abnormality occurs. Is possible.
[0056]
[4. Second Embodiment]
In the second embodiment, as shown in FIG. 3, communication between the hands-free device 202 and the base station CS may be performed via the mobile phone 102. In this way, the configuration is simplified because the base station communication unit is not required in the hands-free device 202, and the mobile communication service network system side needs to support a plurality of terminals for the same telephone number. Because there is no, implementation becomes easier.
[0057]
[5. Third Embodiment]
As a further simplified third embodiment, as shown in FIG. 4, a mobile phone control device excluding the hands-free call function is also conceivable. In the third embodiment as well, similar to the first embodiment, the mobile phone 103 is switched to a state where the incoming call is not notified when the engine is started, and is returned to the original state when the engine is stopped. Thus, it is possible to reliably suppress the use of the mobile phone body during driving.
[0058]
[6. Other embodiments]
In addition, this invention is not limited to said each embodiment, Other embodiments which are illustrated next are included. For example, in the first and second embodiments, when the engine start is detected, the operation state of both the portable phone and the hands-free device is switched, but the target of the operation state switching is either the portable phone or the hands-free device. It may be only.
[0059]
As a specific example, an embodiment in which the hands-free device is in a state of notifying incoming calls while the engine is rotating, and during that time, the mobile phone is switched to a state in which incoming calls are not notified. In this case, each time the hands-free device 2 periodically generates a predetermined signal, and the mobile phone receives this signal, it starts or updates a state in which the incoming call is not notified for a predetermined number of seconds, and stops the engine when the signal is If the mobile phone stops, the mobile phone may automatically return to a state in which an incoming call is notified after a predetermined number of seconds.
[0060]
Further, the target for switching the operation state when the engine start is detected does not need to be a specific portable phone, and the operation state is not limited to the power-off or drive mode. For example, a plurality of pre-registered mobile phones may be switched to a state in which incoming calls are not notified. For example, a normal answering machine recording mode may be considered as an operation state after switching.
[0061]
In addition, for example, the transmission output for the hands-free device to communicate with the mobile phone is sequentially increased, the mobile phone is returned to a state in which an incoming call is notified when the engine is stopped, It is not indispensable to make an emergency contact in the event of an accident.
[0062]
【The invention's effect】
As described above, according to the present invention, it is possible to provide mobile communication technology that reliably suppresses the use of the mobile phone body during operation by automatically switching the operating state of the mobile phone. Driving safety is also improved.
[Brief description of the drawings]
FIG. 1 is a functional block diagram showing a configuration of a first embodiment of the present invention.
FIG. 2 is a flowchart showing a processing procedure in the first embodiment of the present invention.
FIG. 3 is a functional block diagram showing a configuration of a second embodiment of the present invention.
FIG. 4 is a functional block diagram showing a configuration of a third embodiment of the present invention.
[Explanation of symbols]
1,102,103 ... Mobile phone
2, 202, 203 ... Hands-free device
3… In-vehicle phone
11 ... Power supply
12, 22 ... base station communication section
13, 23, 132, 232, 133, 233 ... in-vehicle communication section
14, 24, 142, 242, 143, 243... Operation state switching unit
15 ... Switch
20 ... Engine start key switch
21 ... Power switch
26 ... Microphone
27 ... Speaker
CS ... Base station

Claims (8)

In a hands-free in-vehicle phone device that is installed in a vehicle and operates in cooperation with a mobile phone,
Communication means for communicating with the mobile phone;
A microphone and speaker for calling, and means for detecting that the engine of the vehicle has been started;
Means for transmitting a predetermined control signal from the communication means to the mobile phone when the start is detected, and for switching the hands-free in-vehicle telephone device to an operation state for notifying an incoming call;
A hands-free in-vehicle telephone device comprising means for communicating with a base station . The transmission output of the communication means for communicating with the portable telephone is sequentially increased, and a predetermined sequence including transmission / reception of the control signal is performed with the portable telephone that has responded first. The hands-free in-vehicle telephone device according to claim 1, wherein: Means for detecting that the engine has been stopped;
Means for transmitting a predetermined second control signal from the communication means to the mobile phone when the stop is detected, and for stopping the hands-free in-vehicle telephone device;
The hands-free in-vehicle telephone device according to claim 1 or 2 , further comprising: The hands-free in-vehicle telephone device according to any one of claims 1 to 3 , wherein a call is made to a predetermined communication destination when a predetermined condition is satisfied. The hands-free in-vehicle telephone device according to any one of claims 1 to 4 ,
A first communication means for communicating with the base station, a second communication means for communicating with a hands-free in-vehicle telephone device installed in the vehicle, and a control signal predetermined from the second communication means A mobile communication system comprising: means for switching the mobile phone to an operation state in which an incoming call is not notified when the mobile phone is received . In a control method of a hands-free in-vehicle telephone device installed in a vehicle and operating in cooperation with a mobile phone,
Detecting that the engine of the vehicle has been started;
An operation state switching step for transmitting a predetermined control signal to the mobile phone when the start is detected and switching the hands-free in-vehicle telephone device to an operation state for notifying an incoming call;
The operation state switching step includes a process of causing the base station communication function of the hands-free in-vehicle telephone device to communicate independently with the base station, the control method for the hands-free in-vehicle telephone device. Claim 6 wherein the mobile phone transmit power sequentially increases the for communicating with, between the first mobile phone in response, and performs a predetermined sequence including the transmission and reception of the control signal A control method of the described hands-free in-vehicle telephone device. Detecting that the engine has been stopped;
Transmitting a second predetermined control signal to the mobile phone when the stop is detected, and stopping the hands-free in-vehicle phone device;
The method for controlling a hands-free in-vehicle telephone device according to claim 6 or 7 , wherein:

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