JP4933204B2 - In-vehicle information control device - Google Patents

Description

  The present invention relates to an in-vehicle information control apparatus mounted on an automobile such as an in-vehicle navigation apparatus, and more particularly to an in-vehicle information control apparatus having a function of communicating with a mobile phone.

In recent years, it has been prohibited by law to allow drivers to operate mobile phones while driving a car, so-called hands-free calls that allow you to talk to a caller without having to hold a mobile phone. In-vehicle information control devices such as navigation devices having functions have become widespread.
In such an in-vehicle information control device, when a call is made to the driver's mobile phone, the driver is notified of the incoming call by displaying a message notifying the incoming call or the other party's phone number on the display screen. In response to this, the driver presses a response switch provided in the in-vehicle information control device, so that a call can be made with the caller through a microphone provided in advance in the in-vehicle information control device.

In addition, some of the latest mobile phones have a wireless communication function (hereinafter referred to as “Blue tooth mobile”) that can wirelessly exchange information with another information device called Blue tooth. There has also been proposed an in-vehicle information control device capable of making a call with a caller without being directly connected to the device with a cable or the like.
JP 2005-236615 A

However, while driving a car, it may not respond to a call with a caller from the viewpoint of safety and privacy protection for passengers. Even if it is displayed on the screen, you may get out of the car without noticing.
And if the mobile phone is connected to the in-vehicle information control device with a cable, the driver will pick up the mobile phone, so there is a possibility that you will notice that there was an incoming call by flashing the display of the mobile phone screen or LED etc. It is also possible that you may not be aware of it even though it is expensive, and even if you are using a Blue tooth mobile phone, if you leave the mobile phone in a bag or carry it in your own clothes Therefore, there is a possibility that even after getting off, there is a fear of not receiving the incoming call, and there is a problem that the reply to the caller is forgotten.

  In view of these problems, the object of the present invention is to inform the driver when the engine is turned off when there is an unanswered call made to the driver's mobile phone while the vehicle is running. It is an object of the present invention to provide an in-vehicle information control apparatus for notifying an unanswered call, preferably by voice.

A feature of the present invention is that in an in-vehicle information control device mounted on an automobile that is connected to a mobile phone and makes a call with the outside via the mobile phone, an incoming call management unit that manages whether there is an incoming call to the mobile phone; Engine OFF detection means for detecting that the engine of the automobile is turned off, and unanswered in incoming information managed by the incoming call management means when the engine OFF detection means detects that the engine is turned off An unanswered incoming call searching means for searching whether there is an incoming call, a notification means for notifying that there is an unanswered incoming call when the unanswered incoming call detecting means detects the unanswered incoming call , and the unanswered incoming call If unanswered incoming call is detected by the search means, at least after the engine is turned OFF In-vehicle information control device characterized by comprising a power control means for holding the sheet.

  According to the present invention, when there is an unanswered call made to the driver's mobile phone while the vehicle is running, the driver is notified of the unanswered call when the engine is turned off. It is something that can be done.

  An embodiment of the present invention will be described in detail below with reference to the drawings. However, it is needless to say that the present invention can be variously modified and applied without being limited to the embodiment described below.

First, an example of the internal configuration of a navigation device mounted on a car as an example of an in-vehicle information control device according to the present invention will be described with reference to FIG.
The navigation device 1 includes an arithmetic processing unit 10, an external storage device 20, a sensor unit 30, a display unit 40, an external information receiving unit 50, an input / output unit 60, and the like.

  The arithmetic processing unit 10 includes a CPU (Central Processing Unit) 11, a storage device 12 including a Flash ROM (Read Only Memory), an SDRAM (Synchronous Random Access Memory) 13, and the like. Of course, there are other elements constituting the arithmetic processing unit 10, but illustration of elements not related to the description of the present invention is omitted.

  The CPU 11 is used for performing various calculations in addition to executing application programs described later. For example, a signal from the sensor unit 30 is calculated according to a predetermined logic, or a current position of the vehicle is calculated based on information from a GPS (Global Positioning System) signal receiving unit 51, and display is necessary from the calculated current position information. The map information is read from the external storage device 20 and displayed on the display unit 40 together with the vehicle position mark as the current position.

The storage device 12 stores application programs for various functions of the navigation device 1 and data necessary for the calculation thereof. Here, the Flash ROM 12 is used, but an EPROM or the like having equivalent functions is used. Also good.
The SDRAM 13 is used as a work area being processed or used for temporarily storing map data, etc. Map information and calculation data, for example, position information of a designated place on the touch panel 45 described later and a selected road The point information etc. which comprise is memorized. It also has a function of temporarily storing various kinds of information such as incoming call information, and these pieces of information are appropriately allocated and stored in the memory space of the SDRAM.

The external storage device 20 stores information necessary for navigation processing, such as map data, road types, road data for route calculation such as nodes constituting the road data and link configuration information, facility information such as coordinate values, telephone numbers, and addresses. Is building as.
In addition to the above information, the external storage device 20 stores traffic regulation information such as one-way traffic and entry prohibition as attribute information defined and associated with the previously described nodes and links. Therefore, if this traffic regulation information is related to the searched nodes and links, the recommended route is determined in consideration of the traffic regulation information in the route search.
The external storage device 20 is composed of one or a combination of a DVD drive 21 and a hard disk drive device (HDD) 22 into which a DVD (Digital Versatile Disk) 23 storing the above-described information is inserted.

The sensor unit 30 includes an azimuth sensor 31 and a gyro 32. The azimuth sensor 31 detects the direction of the automobile by detecting the magnetic field of the earth. The gyro 32 includes an optical fiber gyroscope, a vibration gyroscope, and the like. It is used to detect the angle of rotation of the automobile.
The signals detected by the azimuth sensor 31 and the gyro 32 are converted into digital signals by an analog-digital converter (A / D) 34 and sent to the arithmetic processing unit 10 via the internal bus 70.

  Further, the sensor unit 30 includes a wheel speed sensor 33. The wheel speed sensor 33 detects a travel distance signal of the automobile by counting a pulse signal output with the rotation of the wheel by a counter 35. Similarly, the distance signal is sent to the arithmetic processing unit 10 via the internal bus 70.

The GPS signal receiving unit 51 receives a signal from a GPS satellite via the GPS antenna 54, and measures the distance between the vehicle and the satellite and the rate of change of the distance, whereby the current position, traveling direction, and traveling direction of the vehicle. These measurement data are sent from the SCI (Serial Communication Interface) 53 to the arithmetic unit 10 via the internal bus 70.
The blue tooth communication unit 52 performs communication with the blue tooth mobile phone 55 and authentication processing.

The display unit 40 includes display control means including a display driver 41, a controller 43, a buffer 44, and the like, and a liquid crystal panel 42, and stores data sent from the arithmetic processing unit 10 via the internal bus 70 in the buffer 44. Based on this, the liquid crystal panel 42 displays a map, a guidance route, a vehicle position, and the like.

  The controller 43 also performs processing for detecting a position pressed by an operator's finger or the like in response to signals from a number of proximity sensors provided on a touch panel 45 installed on the liquid crystal panel 42 constituting the display screen. The information regarding the detected position is interrupted and sent to the CPU 11.

The input / output unit 60 is a key pad 62 composed of a hard switch or a jog switch that accepts instructions such as route guidance, telephone on-hook / off-hook, response hold, power on / off instructions, etc. A remote control light receiving unit 61 that receives an optical signal from a remote controller 65 to be operated, a message to a user generated by the arithmetic processing unit 10 is converted into an audio signal by a speaker (SP) 66 and an audio signal input through a microphone 68 Is constituted by a CODEC 63 having a sound output function for converting the signal. Further, the CODEC 63 has a function of performing voice input / output processing of the mobile phone.
These exchange data with the arithmetic processing unit 10 via a PIO (Port Input / Output) 64 and an internal bus 70.

  As shown in FIG. 2A, the power supply processing unit 69 includes a voltage comparator 70 that monitors the voltage of an accessory power supply that is turned on / off by the vehicle ignition switch, and a constant voltage circuit that converts the power supply from the vehicle battery into a predetermined voltage. 71, a switch circuit 72 controlled by a signal from the arithmetic processing unit 10, and the like.

Next, processing (including processing in the power processing unit) for wirelessly connecting the navigation device 1 and the Bluetooth toothed mobile phone 55 will be described with reference to FIG.
When the driver turns on the ignition switch of the vehicle at T1, an accessory power supply (ACC) is supplied to the navigation device 1.
Here, when the accessory power supply becomes equal to or higher than a predetermined voltage, the output signal S1 of the voltage comparator 70 shown in FIG. 2 (a) becomes active, and the arithmetic processing unit 10 is interrupted. As a result, the arithmetic processing unit 10 is activated to activate the control signal S2 and turn on the switch circuit 72.

Thereby, power (V2) is supplied to each part in the navigation apparatus 1, and the navigation apparatus 1 is started.
When the navigation device 1 is activated, the arithmetic processing unit 10 makes a link establishment request based on the blue tooth address of the blue tooth mobile phone 55 via the blue tooth communication unit 52, and a response to the link establishment request is returned from the mobile phone 55. When you come, make initial settings for hands-free calling and enter standby.

The process when the incoming call is received by the Blue tooth mobile phone 55 in the standby state will be described with reference to FIGS. 3 and 4. FIG.
In FIG. 3, when there is an incoming call to the Blue tooth mobile phone 55, an incoming call processing notification shown in S <b> 200 of FIG. 3 is output to the Blue tooth communication unit 52 of the navigation device 1. In response to this incoming processing notification, the arithmetic processing unit 10 of the navigation device 1 starts the incoming interrupt processing shown in FIG. 4 and prepares to output the incoming voice from the speaker 66 and input the outgoing voice from the microphone 68.

  Thereafter, when the arithmetic processing unit 10 is notified that an incoming call has been received in S210 of FIG. 3, the arithmetic processing unit 10 can receive a caller ID from the Bluetooth mobile phone 55 following the incoming call notification. 3 at S220 and at S102 in FIG. 4, the bluetooth communication unit 52 receives the caller number and when the subsequent ringtone is received at S230 in FIG. 3, the incoming time shown in S104 in FIG. A process of storing and registering the called party number and, in some cases, the calling party name in the SDRAM 13 as incoming information is performed.

Here, when the driver goes off-hook by operating the response key of the navigation device 1, an incoming call response request is sent to the blue tooth mobile phone 55 in S240 of FIG. 3 and connected to an external wireless communication network to communicate with the caller. Calls can be made.
On the other hand, when the response is returned in S250 of FIG. 3 (in the case of “Y” in S106 of FIG. 4), the arithmetic processing unit 10 deletes the incoming information from the SDRAM 13 in S108 of FIG. Transition to connection processing.

  Note that the caller stops calling as in the case of “Y” in S112 of FIG. 4 or the driver puts the call on hold as in the case of “Y” in S110 of FIG. When the call is disconnected, the process proceeds to a response hold process and a disconnect process, respectively, with the incoming information registered.

Next, processing when the driver makes a call (call) to the caller who recorded the incoming call information will be described with reference to FIG.
When a transmission number is input, a transmission process is started. First, in S302, it is searched whether the transmission number is recorded in the SDRAM 13 as incoming information. When the incoming information is recorded as in “Y” in S304, the corresponding incoming information is deleted in S306.

However, if no corresponding information is found such as no caller ID is recorded as in the case of “N” in S304, the process proceeds to a hands-free call setting process.
Since the subsequent processing is not directly related to the present invention, the description thereof is omitted.

Next, the incoming information reporting process will be described with reference to FIGS.
When the ignition switch of the vehicle is turned off at T2 in FIG. 2 (b), the accessory power supply is not supplied, and the output S1 of the voltage comparator 70 using the accessory power supply becomes inactive,
In response to this, the arithmetic processing unit 10 starts the incoming information reporting process shown in FIG.

First, it is searched whether unanswered incoming call information remains in the SDRAM 13 in the process described in S402 in FIG. Here, when there is unanswered incoming call information such as “Y” in S404 of FIG. 6, the arithmetic processing unit 10 keeps the control signal S2 active even after the ignition switch is turned off, to the navigation device 1. While the power supply is continued, voice message data indicating that unanswered incoming call information remains is output to the CODEC 63 in S406.
The voice message data is stored in advance in the flash memory 12, and is read out and used in the above-described processing of S406.

Through the process of S406, for example, a voice message such as “an unanswered incoming call remains” is output from the speaker 66, and the driver is notified by voice that there is an unanswered incoming call information.
When the output of the audio data is completed, the control signal S2 is deactivated in S408 of FIG. 6, and the power supply to the navigation device 1 is stopped.
If there is no unanswered incoming call history such as “N” in S404 of FIG. 6, the arithmetic processing unit 10 deactivates the control signal S2 of the switch circuit 72 immediately after the ignition switch is turned off. Stop power supply.

  In this embodiment, the engine ON / OFF is normally determined by the voltage of the accessory power supply (ACC) of the vehicle supplied to the navigation device 1, but the signal indicating the ON / OFF state of the engine from the vehicle ( If IGN) can be acquired, the engine state is determined based on that, and if it is detected that the engine has been turned off, it is searched whether unanswered incoming information remains, and if unanswered incoming information remains You may make it notify a driver | operator.

  In the present embodiment, the incoming information is recorded and the corresponding incoming information is deleted when the driver calls the caller in response to the incoming call. Information indicating the presence or absence of transmission (for example, 1 for unanswered, responded (transmitted): 0) is added and recorded, and when the engine is turned off, there is an unanswered call by looking at the information It may be determined whether or not.

It is a block diagram of the navigation apparatus which is one Example of this invention. It is a timing chart figure regarding the composition of the power supply processing part of the navigation device which is one example of the present invention, and the processing of the power supply processing part. It is a figure which shows the communication flow between the navigation apparatus which is one Example of this invention, and a mobile telephone. It is a flowchart figure which shows a process when there exists an incoming call in the Blue tooth mobile telephone in the navigation apparatus which is one Example of this invention. It is a flowchart figure which shows the deletion process of the incoming call information in the navigation apparatus which is one Example of this invention. It is a flowchart figure which shows the process of the navigation apparatus which is one Example of this invention at the time of ignition OFF.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Navigation apparatus, 45 ... Touch panel, 55 ... Blue tooth mobile phone, 10 ... Control part, 13 ... SDRAM, 52 ... Blue tooth communication part, 63 ... CODEC, 66 ... Speaker, 68 ... Microphone, 69 ... Power supply processing part, 70: Voltage comparator, 71: Constant voltage circuit, 72: Switch circuit.

Claims (1)

In an in-vehicle information control device mounted on a car connected to a mobile phone and making a call with the outside via the mobile phone,
Incoming call management means for managing presence / absence of incoming calls to the mobile phone, engine OFF detection means for detecting that the automobile engine is turned off, and detecting that the engine has been turned off by the engine OFF detection means. The unacknowledged incoming call search means for searching whether there is an unanswered incoming call in the incoming call information managed by the incoming call management means, and the unanswered incoming call is detected when the unanswered incoming call search means detects the unanswered incoming call. A notification means for notifying that there is an incoming call, and a power supply even after the engine is turned off until at least notification that there is an unanswered incoming call by the notification means when the unanswered incoming call detecting means detects the unanswered incoming call. An in-vehicle information control device comprising a power supply control means for holding supply .

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