JP4551677B2 - In-vehicle device, control method for in-vehicle device, control program, and recording medium - Google Patents

Description

  The present invention relates to an in-vehicle device, a control method for an in-vehicle device, a control program, and a recording medium for preventing a mobile phone from being left behind in a vehicle cabin.

In general, a hands-free system that enables hands-free calling of a mobile phone is known. In this type of hands-free system, in order to prevent the mobile phone from being left behind in the vehicle interior, a warning is given when the phone is left behind. A device that emits a sound to alert a user has been proposed (see, for example, Patent Document 1).
JP-A-11-155005

  However, in the conventional case, since it was determined whether the mobile phone is mounted on the cradle for hands-free calling, even if a mobile phone other than the mobile phone mounted on the cradle is left in the passenger compartment I was n’t able to report that.

  The present invention solves the above-described conventional problems, and when a mobile phone is misplaced in the vehicle interior, notifies that effect and prevents the mobile phone from being misplaced, a control method for the on-vehicle device, and control The object is to provide a program and a recording medium.

In order to solve the above-described problems, the present invention provides an in-vehicle device including a wireless communication unit capable of short-range wireless communication with a plurality of mobile phones, detecting means for detecting that all passengers have exited the vehicle, Detecting means for detecting a mobile phone left unattended, and monitoring the electric field strength when the wireless communication unit performs short-range wireless communication with the mobile phone to detect that the mobile phone has been taken out of the passenger compartment together and means, in a state where all passengers got off the car, when detecting the abandoned mobile phone, to the effect that the mobile phone has been left, the mobile phone is taken out to the vehicle outside characterized by comprising an informing means for informing against.

In this case, when the mobile phone taken out of the passenger compartment is within a range in which short-range wireless communication with the wireless communication unit is possible, the notification unit notifies the notification via the wireless communication unit. It is good also as a structure to perform. In addition, when the mobile phone taken out of the passenger compartment is not within a range in which short-range wireless communication with the wireless communication unit is possible, the notification unit is connected to the passenger compartment connected via the wireless communication unit. A configuration may be adopted in which the notification is made by connecting to a public line using a cellular phone left unattended.

In addition, an acquisition unit that acquires specific information of the mobile phone left in the vehicle interior may be provided, and the notification unit may notify that the mobile phone has been left together with the specific information. In this case, the unique information may be a telephone number or a user name of the mobile phone .

Also, in the vehicle device, connected controllably mounted in-vehicle telephone to the vehicle, mobile phone is taken out to the vehicle outside is not in the said radio communication unit and the near field communication to the extent possible Alternatively , the notification unit may be configured to connect to a public line using the in-vehicle telephone and perform the notification.

Further, the present invention provides a method for controlling an in-vehicle device including a wireless communication unit capable of short-range wireless communication with a plurality of mobile phones, a detection process for detecting that all the passengers have exited the vehicle, and leaving the vehicle interior. A detection process of detecting the mobile phone, a process of monitoring the electric field strength when the wireless communication unit performs short-range wireless communication with the mobile phone, and detecting that the mobile phone has been taken out of the passenger compartment. And when all of the passengers get out of the vehicle and detect the left mobile phone, the mobile phone taken out of the vehicle compartment is informed that the mobile phone has been left . An informing process for informing is provided.

Further, the present invention provides a control program for controlling an in-vehicle device including a wireless communication unit capable of short-range wireless communication with a plurality of mobile phones by using a computer to detect that all passengers have exited the vehicle, Detecting a mobile phone left indoors, monitoring the electric field strength when the wireless communication unit performs short-range wireless communication with the mobile phone, and detecting that the mobile phone has been taken out of the passenger compartment. When all the persons get out of the vehicle and detect the left mobile phone, the mobile phone taken out of the passenger compartment is notified that the mobile phone has been left. And

In this case, when the mobile phone taken out of the passenger compartment is within a range where short-range wireless communication with the wireless communication unit is possible, the notification may be performed via the wireless communication unit. good. In addition, when the mobile phone taken out of the vehicle compartment is not within a range in which short-range wireless communication with the wireless communication unit is possible, the mobile phone left in the vehicle interior connected via the wireless communication unit A configuration may be adopted in which the notification is performed by connecting to a public line using a telephone.

Further, it may be configured to acquire the specific information of the mobile phone left in the passenger compartment and to notify that the mobile phone has been left together with the specific information.

In addition, when the vehicle-mounted phone mounted on the vehicle is controllably connected to the vehicle-mounted device, and the mobile phone taken out of the vehicle compartment is not within a range where short-range wireless communication with the wireless communication unit is not possible is to be connected to a public line by using the vehicle telephone, it may be configured to perform the notification.

  The control programs may be recorded on a computer-readable recording medium.

  According to the present invention, when all of the passengers get out of the vehicle and detect a mobile phone left in the vehicle interior, the mobile phone is carried in the vehicle interior by notifying that the mobile phone has been left. You can prevent the phone from being left behind.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

<First Embodiment>
FIG. 1 is a block diagram showing a functional configuration of an in-vehicle device 10 according to an embodiment of the present invention. The in-vehicle device 10 is configured to be wirelessly connectable to a plurality of mobile phones 100 and 101, and acquires necessary information data or makes a hands-free call through these mobile phones 100 and 101. .

  The in-vehicle device 10 includes a control unit 20, which includes audio, hands-free call control unit 21, wireless communication unit 22, external notification interface (I / F) 23, phone book database memory 24, ACC ( Accessory) A power supply sensor 25 and a door lock determination sensor 26 are connected.

  The control unit 20 temporarily stores a ROM that stores a control program and control data in advance, a CPU that controls the entire in-vehicle apparatus 10 based on the control program in the ROM, and various data. RAM.

  The audio / hands-free call control unit 21 is for controlling an audio function of a CD player or the like mounted on an in-vehicle device and a hands-free function of a mobile phone. In addition to an operator for hands-free calling such as an operator for instructing start, an operator for audio operation such as an operator for CD playback is provided.

  The wireless communication unit 22 performs short-range wireless communication in accordance with the Bluetooth (registered trademark) standard under the control of the control unit 20, and forms a communication area with a radius of several meters around the communication area. A hands-free call is realized by wireless communication with mobile phones 100 and 101 located in the area. The communication method is not limited to Bluetooth, but may be another wireless communication method such as a wireless LAN. The wireless communication unit 22 includes a communication control circuit 31, a transmission circuit 35 including a modulation circuit 32, an output circuit 33, and an antenna 34 connected to the communication control circuit 31, an antenna 34, an amplification circuit 36, and a demodulation And a receiving system circuit 38 constituted by a circuit 37. The wireless communication unit 22 may be a general-purpose wireless communication unit that can be attached to and detached from the in-vehicle device 10. In the present embodiment, the control unit 20 and the wireless communication unit 22 constitute detection means.

  The external notification I / F 23 is for notifying an output signal to the outside such as a buzzer or a voice guidance circuit. In this embodiment, the vehicle connected to the external notification I / F 23 through the external notification I / F 23. An alarm device mounted on the vehicle is connected to be controllable via a computer, and the alarm device 110 (horn) can be sounded under the control of the control unit 20.

  The phone book database memory 24 stores phone book information for making a hands-free call and unique information such as the phone numbers and user names of the mobile phones 100 and 101 that perform short-range wireless communication with the in-vehicle device 10. belongs to. The control unit 20 acquires unique information from the mobile phones 100 and 101 via the wireless communication unit 22 and stores this unique information in the phone book database memory 24.

  The ACC power supply sensor 25 detects ON / OFF of the ACC power supply provided in the ignition switch (not shown), and the door lock determination sensor 26 detects whether the vehicle door (not shown) is locked. To do. In the present embodiment, by using the ACC power supply sensor 25 and the door lock determination sensor 26, it is detected that all the passengers have exited the vehicle (detection means). That is, when the ACC power supply is turned off and the door of the vehicle is locked, it is assumed that all the passengers have exited the vehicle and the fact is detected.

  The mobile phones 100 and 101 are used for call communication with other mobile phones and fixed telephones via public lines. For example, general mobile phones such as speakerphones, microphones, and communication units for call communication are provided. In addition to the components, short-range wireless communication modules 100a and 101a are provided. The short-range wireless communication modules 100a and 101a include wireless communication antennas 100b and 101b, a wireless communication control circuit, and the like (not shown).

  Next, the operation of the in-vehicle device 10 will be described. FIG. 2 is a flowchart showing the processing operation of the in-vehicle device 10.

  First, the control unit 20 determines whether or not the hands-free function of the in-vehicle device 10 is stopped (step S1). Specifically, it is determined whether or not the ACC power supply sensor 25 is OFF. When the ACC power supply sensor 25 is OFF, the power supply to the handsfree function is interrupted, so that it is determined that the handsfree function is stopped.

  If the hands-free function is not stopped in the determination in step S1 (step S1; No), monitoring is performed until the hands-free function is stopped.

  On the other hand, when the hands-free function is stopped in the determination in step S1 (step S1; No), the control unit 20 determines whether all the passengers have got out of the vehicle (step S2). Specifically, the door lock determination sensor 26 determines whether or not the vehicle door is locked. Here, in addition to the ACC power sensor 25 being OFF, when the door of the vehicle is locked, it is estimated that all passengers have exited the vehicle. By the operation of the lock determination sensor 26, it can be detected that all the passengers have exited the vehicle.

  If it is determined in step S2 that all the passengers have not got off the vehicle (step S2; No), the process returns to step S1 and the processes of steps S1 to S2 are executed. If it is determined in step S2 that all the passengers are getting out of the vehicle (step S2; Yes), the control unit 20 determines whether there is a mobile phone 100 left in the passenger compartment. (Step S3). Specifically, the detection is performed by detecting the mobile phone 100 capable of short-range wireless communication with the wireless communication unit 22 in the vehicle interior.

  If it is determined in step S3 that there is no mobile phone 100 left in the passenger compartment, that is, the presence of the mobile phone 100 capable of short-range wireless communication with the wireless communication unit 22 cannot be detected (step S3; No), control is performed. The unit 20 determines that there is no mobile phone left behind in the passenger compartment, and ends the process.

  On the other hand, if it is determined in step S3 that there is a mobile phone 100 left in the passenger compartment, that is, the presence of the mobile phone 100 capable of short-range wireless communication with the wireless communication unit 22 can be detected (step S3; Yes). The control unit 20 performs short-range wireless communication with the mobile phone 100 left in the vehicle interior through the wireless communication unit 22, so that the owner of the mobile phone 100, such as the phone number and user name of the mobile phone 100, is obtained. Is acquired (step S4). Specifically, the control unit 20 acquires the telephone number of the mobile phone 100 by short-range wireless communication, and compares the telephone number with a telephone number stored in advance in the telephone directory database memory 24. The user name of the mobile phone 100 can be acquired.

  Subsequently, the control unit 20 notifies the user that the mobile phone 100 is left in the passenger compartment (step S5). Specifically, the control unit 20 notifies an output signal to the vehicle computer connected to the external notification I / F 23 through the external notification I / F 23 of the in-vehicle device 10, and the vehicle alarm device 110 (horn) is notified. By ringing, the user is informed that the mobile phone 100 is left in the passenger compartment. The alarm 110 is sounded for a predetermined period (for example, 20 seconds), and stops when the predetermined period elapses. The control unit 20 ends the process when the notification ends.

  According to the first embodiment, when the mobile phone 100 left in the passenger compartment is detected with all the passengers getting out of the vehicle, the mobile phone 100 is sounded to the user by sounding the alarm device 110 of the vehicle. Since it can be notified that the telephone 100 is misplaced in the vehicle interior, misplacement of the mobile phone 100 in the vehicle interior can be prevented.

  Moreover, in this 1st Embodiment, it is set as the structure which alert | reports to a user that the mobile telephone 100 is left in the vehicle interior by sounding the alarm device 110 of a vehicle. It may be configured to emit a warning sound or a message such as “the mobile phone is left” through a speaker provided. Moreover, it is good also as a structure which changes the pattern which sounds the alarm device 110 of a vehicle according to the specific information acquired from the mobile telephone 100 left in the vehicle interior.

Second Embodiment
In the first embodiment, when the misplacement of the mobile phone 100 is detected, the alarm device 110 of the vehicle is sounded to notify the user that the mobile phone 100 is left in the passenger compartment. In the second embodiment, the above notification is made to the mobile phone 101 taken out of the passenger compartment. Since the configuration of the second embodiment is the same as that of the first embodiment, detailed description thereof is omitted. FIG. 3 is a flowchart showing the processing operation of the in-vehicle device 10 in the second embodiment.

  First, the control unit 20 determines whether or not the hands-free function of the in-vehicle device 10 is stopped (step S11). Specifically, it is determined whether or not the ACC power supply sensor 25 is OFF. When the ACC power supply sensor 25 is OFF, the power supply to the handsfree function is interrupted, so that it is determined that the handsfree function is stopped.

  If the hands-free function is not stopped in the determination in step S11 (step S11; No), monitoring is performed until the hands-free function is stopped.

  On the other hand, when the hands-free function is stopped in the determination in step S11 (step S11; Yes), the control unit 20 determines whether all the passengers have exited the vehicle (step S12). Specifically, the door lock determination sensor 26 determines whether or not the vehicle door is locked. Here, in addition to the ACC power sensor 25 being OFF, when the door of the vehicle is locked, it is estimated that all passengers have exited the vehicle. By the operation of the lock determination sensor 26, it can be detected that all the passengers have exited the vehicle.

  If it is determined in step S12 that all the passengers have not got off the vehicle (step S12; No), the process returns to step S11, and the processes of steps S11 to S12 are executed. If it is determined in step S12 that all the passengers are getting out of the vehicle (step S12; Yes), the control unit 20 detects that the mobile phone 101 has been taken out of the passenger compartment (step S13). . In this case, for example, when short-range wireless communication is performed in accordance with the Bluetooth standard, wireless communication is possible if the radius is within a range of several meters, so even the mobile phone 101 taken out of the passenger compartment can be used. As long as it is within this range, wireless communication with the in-vehicle device 10 is possible. However, in general, when the vehicle interior is compared with the vehicle exterior, the electric field strength is weaker outside the vehicle interior. Therefore, the control unit 20 monitors the electric field strength, so that the mobile phone 101 is taken out of the vehicle interior. Can be detected. Further, along with this detection, the telephone number of the mobile phone 101 is acquired.

  Subsequently, the control unit 20 determines whether there is a mobile phone left in the vehicle interior (step S14). Specifically, it is performed by detecting whether or not the mobile phone 100 capable of short-range wireless communication with the wireless communication unit 22 exists in the vehicle interior.

  If it is determined in step S14 that there is no mobile phone 100 left in the passenger compartment, that is, the presence of the mobile phone 100 capable of short-range wireless communication with the wireless communication unit 22 cannot be detected (step S14; No), control is performed. The unit 20 determines that there is no mobile phone left behind in the passenger compartment, and ends the process.

  On the other hand, if it is determined in step S14 that there is the mobile phone 100 left in the vehicle interior, that is, the presence of the mobile phone 100 capable of short-range wireless communication with the wireless communication unit 22 can be detected (step S14; Yes). The control unit 20 performs short-range wireless communication with the mobile phone 100 left in the vehicle interior through the wireless communication unit 22, so that the owner of the mobile phone 100, such as the phone number and user name of the mobile phone 100, is obtained. Is acquired (step S15). Specifically, the control unit 20 acquires the telephone number of the mobile phone 100 by short-range wireless communication, and compares the telephone number with a telephone number stored in advance in the telephone directory database memory 24. The user name of the mobile phone 100 can be acquired.

  Subsequently, the control unit 20 determines whether or not the mobile phone 101 taken out of the passenger compartment is within a range in which near field communication with the wireless communication unit 22 is possible (step S16).

  If it is determined in step S16 that the mobile phone 101 taken out of the passenger compartment is within a range in which short-range wireless communication with the wireless communication unit 22 is possible (step S16; Yes), the control unit 20 The telephone 101 is notified that the mobile phone 100 is left in the passenger compartment (step S17). Specifically, the control unit 20 uses the short-range wireless communication of the wireless communication unit 22 to notify the mobile phone 101 taken out of the passenger compartment that the mobile phone 100 is left in the passenger compartment. . In this case, using the unique information of the mobile phone 100 acquired in step S15, for example, “Mr. A's mobile phone is in the passenger compartment”, “090-*******” “I am in the room.”

  On the other hand, if it is determined in step S16 that the mobile phone 101 taken out of the passenger compartment is not within a range in which short-range wireless communication with the wireless communication unit 22 is possible (step S16; No), the control unit 20 The mobile phone 100 left in the passenger compartment is connected to the public line using the mobile phone 100, and a notification is made that the mobile phone 100 is left in the passenger compartment (step S18).

  As a result, the user of the mobile phone 101 that has received the notification transmits the fact to the user of the mobile phone 100, thereby knowing that the user of the mobile phone 100 has left the mobile phone 100 in the passenger compartment. Can do.

  According to the second embodiment, when all the passengers get out of the vehicle and detect the cellular phone 100 left in the passenger compartment, the fact that the cellular phone 100 has been left is informed by the short-range wireless communication. By notifying the mobile phone 101 taken out of the passenger compartment via communication, it can be notified that the mobile phone 100 has been misplaced in the vehicle interior, so that the misplacement of the mobile phone 100 in the vehicle interior can be prevented. . In particular, it acquires specific information of the mobile phone 100 left in the vehicle interior and, along with this specific information, notifies that the mobile phone 100 has been left, and therefore (who) mobile phone is left behind in the vehicle interior. You can easily know what is being done.

  In addition, even when the mobile phone 101 taken out of the passenger compartment exceeds the range where short-range wireless communication is possible, the mobile phone 100 left in the passenger compartment is used to connect to the public line. Since it can be notified that the mobile phone 100 is misplaced in the vehicle interior, misplacement of the mobile phone 100 in the vehicle interior can be prevented.

  In the second embodiment, the mobile phone 100 left in the vehicle interior is connected to the public line and the mobile phone 100 is informed that the mobile phone 100 has been left in the vehicle interior. Alternatively, a vehicle-mounted telephone provided in the vehicle may be connected in a controllable manner, connected to a public line using this vehicle-mounted telephone, and notification to that effect may be made.

  In the second embodiment, the control unit 20 determines the difference between the mobile phone 100 left in the passenger compartment and the mobile phone 101 taken out of the passenger compartment from the difference in electric field strength. In addition to the short-range wireless communication antenna provided indoors, another short-range wireless communication antenna may be provided outside the vehicle compartment. Alternatively, the difference between the mobile phone 100 left in the vehicle interior and the mobile phone 101 taken out of the vehicle interior, for example, by constantly monitoring the electric field intensity and comparing the values to determine that the vehicle is clearly away from the vehicle interior. It is good also as a structure which discriminate | determines.

  In the second embodiment, when the mobile phone 101 taken out of the passenger compartment is within a range in which short-distance wireless communication with the wireless communication unit 22 is possible, the short-distance wireless communication is used. However, even in this case, the mobile phone 100 may be connected to the public line using the mobile phone 100 and notified to that effect by telephone call or mail.

  As mentioned above, although this invention was demonstrated based on the said embodiment, this invention is not limited to this. For example, the first and second embodiments may be combined to notify that the mobile phone 100 is left in the passenger compartment.

  In the above description, the case where the control program for controlling the in-vehicle device 10 is stored in advance in the ROM constituting the control unit 20 has been described. However, recording media such as various magnetic disks, optical disks, and memory cards are used. It is also possible to record the control program in advance, read from these recording media, and install. It is also possible to provide a communication interface and download the control program via a network such as the Internet or LAN, and install and execute the program. By configuring in this way, it becomes possible to provide a higher function in terms of software or to configure a more reliable vehicle-mounted device.

It is a block diagram which shows the function structure of the vehicle-mounted apparatus which concerns on embodiment of this invention. It is a flowchart which shows the processing operation of the vehicle-mounted apparatus concerning 1st Embodiment. It is a flowchart which shows the processing operation of the vehicle-mounted apparatus concerning 2nd Embodiment.

Explanation of symbols

10 on-vehicle device 20 control unit (detection means, detection means, notification means, acquisition means)
22 Wireless communication unit (detection means, notification means)
24 Phonebook database memory (acquisition means)
25 ACC power sensor (detection means)
26 Door lock determination sensor (detection means)
100, 101 Mobile phone 110 Alarm (notification means)

Claims (13)

In an in-vehicle device including a wireless communication unit capable of short-range wireless communication with a plurality of mobile phones,
Detection means for detecting that all passengers have exited the vehicle;
A detection means for detecting a mobile phone left in the passenger compartment ;
Means for monitoring the electric field strength when the wireless communication unit performs short-range wireless communication with the mobile phone and detecting that the mobile phone has been taken out of the vehicle compartment ;
Informing means for notifying the cellular phone taken out of the passenger compartment that the cellular phone has been left out when all the passengers have detected the neglected cellular phone in a state where they are getting out of the vehicle A vehicle-mounted device comprising: When the mobile phone taken out of the passenger compartment is within a range where short-range wireless communication with the wireless communication unit is possible, the notification means performs the notification via the wireless communication unit. The in-vehicle device according to claim 1. When the mobile phone taken out of the passenger compartment is not within a range in which short-range wireless communication with the wireless communication unit is possible, the notification unit is left in the passenger compartment connected via the wireless communication unit. The in-vehicle device according to claim 1, wherein the notification is performed by connecting to a public line using a mobile phone. An acquisition means for acquiring specific information of the mobile phone left in the passenger compartment;
The in-vehicle device according to any one of claims 1 to 3, wherein the notification unit notifies that the mobile phone is left together with the unique information. The in-vehicle device according to claim 4, wherein the unique information is a telephone number or a user name of the mobile phone. An in-vehicle phone mounted on the vehicle is connected to the in-vehicle device in a controllable manner,
When the mobile phone taken out of the passenger compartment is not within a range where short-range wireless communication with the wireless communication unit is possible, the notification means connects to a public line using the in-vehicle phone, and the notification The vehicle-mounted device according to claim 1, wherein: In a method for controlling an in-vehicle device including a wireless communication unit capable of short-range wireless communication with a plurality of mobile phones,
A detection process that detects that all passengers have exited the car,
A detection process for detecting a mobile phone left in the passenger compartment ;
A step of monitoring the electric field strength when the wireless communication unit performs short-range wireless communication with the mobile phone and detecting that the mobile phone has been taken out of the passenger compartment ,
An informing process for notifying the mobile phone taken out of the passenger compartment that the mobile phone has been left out when all the passengers have detected the left mobile phone in a state where the passenger has left the vehicle. A control method for an in-vehicle device, comprising: In a control program for controlling an in-vehicle device including a wireless communication unit capable of short-range wireless communication with a plurality of mobile phones by a computer,
Make sure all passengers get out of the car,
Detect mobile phones left in the passenger compartment,
Monitoring the electric field strength when the wireless communication unit performs short-range wireless communication with the mobile phone to detect that the mobile phone has been taken out of the passenger compartment;
When all the passengers get out of the vehicle and detect the left mobile phone, the mobile phone taken out of the passenger compartment is notified that the mobile phone has been left. A control program for an in-vehicle device. The mobile phone taken out of the passenger compartment is caused to perform the notification through the wireless communication unit when the mobile phone is within a range in which short-range wireless communication with the wireless communication unit is possible. 8. A control program for an in-vehicle device according to 8 . When the mobile phone taken out of the passenger compartment is not within a range where short-range wireless communication with the wireless communication unit is possible, a mobile phone left in the passenger compartment connected via the wireless communication unit The in-vehicle device control program according to claim 8 or 9 , wherein the notification is performed by connecting to a public line. Get the unique information of the mobile phone left in the passenger compartment,
The control program for an in-vehicle device according to any one of claims 8 to 10, wherein a notification that the mobile phone has been left is notified together with the specific information. An in-vehicle phone mounted on the vehicle is connected to the in-vehicle device in a controllable manner,
When the mobile phone taken out of the passenger compartment is not within a range in which short-range wireless communication with the wireless communication unit is possible, the mobile phone is used to connect to a public line and the notification is performed. The control program for an in-vehicle device according to any one of claims 8 to 11 . 13. A computer-readable recording medium on which the control program according to claim 8 is recorded.

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