JP2009206866A - Vehicle telephone set, telephone call control method - Google Patents

Abstract

An object of the present invention is to provide a vehicular call device that does not release a call restriction when starting immediately after a stop. It is another object of the present invention to provide a vehicular call device and a call control method capable of notifying a user that there is a need to start after canceling a call restriction.
In a vehicular call device 100 that restricts a call during traveling and cancels the call restriction when the host vehicle 50 is stopped, transition until the current information and signal of a traffic signal 11 ahead changes. A first receiving means 26 for receiving the remaining time, a second receiving means 21 for receiving vehicle information of other vehicles between the traffic light 11 and the own vehicle, When the information indicates stop and it is determined from the vehicle information of the other vehicle that the other vehicle is stopped, the call restriction control means 44 for releasing the call restriction, and the transition remaining time is less than or equal to a predetermined value, And notification means 43 for notifying the user of the remaining transition time.
[Selection] Figure 4

Description

  The present invention relates to a vehicle call device and a call control method for restricting a call during traveling and releasing the call restriction when the host vehicle is stopped.

  Mobile phones and PHS (hereinafter referred to as mobile terminals) are provided with a call waiting state called drive mode (hereinafter referred to as public mode). Even if the phone does not go off-hook, it can respond to the caller with a voice message such as “Don't answer the phone because you are driving”. Therefore, for example, when the user gets on the vehicle, the mobile terminal is switched to the public mode, so that even if there is an incoming call while driving the vehicle, there is no need to answer the call. It is possible to grasp that the user cannot answer the call.

  In view of this, there has been proposed a technique for switching to the public mode while riding in the vehicle without the user switching to the public mode (see, for example, Patent Document 1). Patent Document 1 describes an in-vehicle holder in which an operation unit that switches to a public mode is continuously pressed by attaching a mobile terminal to a storage unit.

  However, since the user may be able to go off-hook while the vehicle is stopped, the user may be able to go off-hook while the vehicle is stopped. Can be said to be excessive.

  On the other hand, a technique for canceling the public mode while the vehicle is stopped has been proposed (for example, see Patent Document 2). Patent Document 2 describes an in-vehicle response system that detects whether the engine is on or off and determines that the vehicle is running so that the telephone is not connected even if a call is received. If the engine is off, the public mode is canceled so that the user can go off-hook when there is an incoming call.

  In addition, a technique for detecting that the vehicle is continuously stopped for a certain time or longer and canceling the public mode has been proposed (for example, see Patent Document 3). Patent Document 3 describes a vehicle-mounted device that cancels a public mode when a parking signal is detected or a continuation of a stop that exceeds a predetermined time is detected.

Further, a technique has been proposed that responds to a caller by an automatic response when the distance between intersections of a road that is running is narrow (see, for example, Patent Document 4). Patent Document 4 discloses an in-vehicle telephone system that permits hands-free calling when the intersection interval is long, considering that it is difficult to respond to incoming calls because the stop and transmission are repeated when the intersection interval is short. Are listed.
JP 2007-60383 A Japanese Patent Laid-Open No. 2001-224067 JP 2006-319727 A JP 2001-144850 A JP 2000-18059 A

  However, as described in Patent Document 2, if the public mode is simply detected by detecting that the vehicle is stopped, the user is difficult to respond when the user goes off-hook but needs to leave immediately. There's a problem.

  Also, as described in Patent Document 3, when the public mode is canceled based on a certain time, if the certain time is lengthened, the call cannot be made unless a long time elapses after the stop. If the same inconvenience is caused and the fixed time is short, the same problem as in Patent Document 2 occurs. For example, when waiting for a signal, even if the signal is the same, the time during which the vehicle is stopped varies depending on traffic conditions, so it is difficult to switch the cancellation / setting of public mode at an appropriate timing if the fixed time is fixed. is there.

  In addition, as described in Patent Document 4, when switching from the intersection interval to the public mode, the stop time of the vehicle is not determined only by the intersection interval, so the release timing and setting timing of the public mode are determined from the intersection interval. It is difficult to determine.

  As a technology for predicting the stop time, an engine automatic stop device that provides a vehicle with a signal waiting time until the traffic light switches from red to blue and stops the engine when the signal waiting time is equal to or longer than a predetermined time has been proposed. (For example, refer to Patent Document 5). However, there is a problem that if the signal waiting time is long and the public mode is simply canceled, the user who is conscious of the call is not aware of the need to start even if the signal turns blue.

  The present invention has been made in view of the above problems, and an object of the present invention is to provide a vehicular call device that does not release call restriction when starting immediately after a stop. It is another object of the present invention to provide a vehicular call device and a call control method capable of notifying a user that there is a need to start after canceling the call restriction.

  In view of the above-described problems, the present invention restricts calls during driving and cancels call restrictions when the host vehicle is stopped. In the vehicle communication device, the display information and signals of the front traffic lights change. The first receiving means (for example, the narrow area communication device 26) that receives the remaining transition time until and the second receiving means (for example, wide area communication) that receives the vehicle information of other vehicles between the traffic light and the own vehicle. Device 21), and the remaining transition time is equal to or greater than a threshold value, the current information indicates a stop, and if it is determined from the vehicle information of the other vehicle that the other vehicle is stopped, the call for releasing the call restriction Restriction control means (for example, public mode setting / cancelling section 44), and notification means (for example, status notification section 43) for notifying the user of the remaining transition time when the remaining transition time is less than or equal to a predetermined value It is characterized by that.

  According to the present invention, when the remaining transition time is equal to or greater than the threshold value, the signal is red, and the other vehicle is stopped, the public mode is canceled, so that a situation occurs in which the vehicle goes off hook but immediately departs. There is no. In addition, when the remaining transition time becomes equal to or less than the predetermined time, the remaining transition time is notified to the user, so that it is possible to prevent the user who is conscious of the call from being aware of the necessity of starting.

  Further, the present invention provides a vehicle call device for restricting a call during traveling and canceling the call restriction when the own vehicle is stopped, and receiving vehicle information of other vehicles in a predetermined section ahead of the own vehicle. 1 receiving means, and when it is determined from the vehicle information of the other vehicle that the other vehicle is stopped, a call restriction control means for releasing the call restriction, and a notification means for notifying the user that the call restriction has been released. When it is detected from the vehicle information of the other vehicle that one or more other vehicles have started, the remaining start time until the own vehicle starts, the start delay time information of a predetermined number of other vehicles following the other vehicle that started And, when the remaining time calculation unit calculated from the number of vehicles from the other vehicle that has started to the host vehicle, and the remaining start time is less than or equal to the predetermined, the call restriction control means resumes the call restriction, the notification means, Tell the user that the call is restricted To knowledge, characterized in that.

  According to the present invention, since the public mode is canceled when the other vehicle is stopped, there is no situation where the vehicle is off-hook but immediately starts. Further, since the remaining start time can be calculated and the user can be notified when the remaining start time is equal to or less than a predetermined value without a traffic light, the user can be prevented from noticing the necessity of starting.

  Further, according to the present invention, when the vehicle is stopped and the own vehicle is stopped, the vehicle call device for releasing the call restriction receives vehicle information of other vehicles between the traffic light and the own vehicle when the own vehicle is stopped. From the first receiving means, the vehicle information of the other vehicle, and the position information of the own vehicle, it is detected that the own vehicle has stopped near the road shoulder, and the other vehicle is within a predetermined distance in front of the own vehicle. When it is detected that the vehicle is not stopped, the call restriction control means for releasing the call restriction, the notification means for notifying the user that the call restriction has been released, and the call restriction control means when the vehicle starts The restriction is resumed, and the notifying means notifies the user that the call is restricted.

  According to the present invention, since it is detected that the user has stopped at his / her will and the public mode is released, there is no situation where the vehicle goes off hook but immediately starts. Further, when the host vehicle starts, it is set to the public mode and notified to the user, so that it can be grasped that the public mode is set.

  In the case of starting immediately after the stop, it is possible to provide a vehicle call device that does not release the call restriction. It is possible to provide a vehicle call device and a call control method capable of notifying a user that there is a need to start after canceling the call restriction.

  Hereinafter, the best mode for carrying out the present invention will be described with reference to the drawings.

While driving a vehicle, there is a case where a call using a mobile phone or PHS (hereinafter simply referred to as a mobile terminal) is prohibited by law, and a hands-free device that can make a call without holding the mobile terminal is commercially available. If the hands-free device is attached to the vehicle, the driver (which is also a user of the mobile terminal, hereinafter referred to as a user without distinguishing between the driver and the user of the mobile terminal) can respond to incoming calls even during driving. However, even a hands-free call without a mobile terminal may not be preferred by some users. Therefore, in the vehicle information terminal of the present embodiment,
a) Allowing a hands-free call while driving b) Not allowing a hands-free call while driving and allowing a user to set a call (hands-free call and operation of a mobile terminal) only when stopped In the following embodiment, control in the case of setting as in b) will be described. In addition, since the mobile terminal is equipped with an automatic answering function called a public mode (or drive mode) as a mode in which a call is prohibited, in the following, prohibition of a call is set to a public mode, and a call is permitted. Is referred to as canceling the public mode. When the public mode is canceled, a hands-free call may be made or the mobile terminal may be held in hand, but the actual call mode shall be in accordance with the laws of each country or local government.

  FIG. 1 shows an example of a schematic configuration diagram of a call mode control system 200 of the present embodiment. The vehicle 50 is stopped together with the vehicle 14 ahead of the red signal from the traffic light 11. The current information of the traffic light 11 (information indicating whether it is in red, blue, or yellow) is transmitted to the vehicle 50 from the roadside communication device 80 laid in front of the traffic light 11 along the road. The roadside communication device 80 acquires the display cycle of the traffic light 11 from the traffic light 11, switches the traffic light 11, switches the traffic light 11 to maintain the red state (hereinafter referred to as the red state maintenance time), the blue state maintenance time, The yellow state maintenance time and the remaining time information (hereinafter referred to as transition remaining time information) until switching to the next display are distributed to the vehicle 50.

  The server 60 collects vehicle speed information, position information, and the like (hereinafter referred to as probe information) from the vehicles 14 and 50 to generate traffic information, and the traffic information is transmitted to the vehicle periodically, irregularly, or in response to a request from the vehicle 50. 50.

  The vehicle 50 is equipped with a vehicle communication device 100 together with a mobile terminal carried by the user. The vehicle communication device 100 receives traffic information (for example, the vehicle speed of the vehicle 14) from infrastructure such as the roadside communication device 80 and the server 60. Information) and detecting that all the vehicles 14 are stopped, the public mode is canceled and the remaining transition time is notified to the user. Accordingly, it is possible to reliably detect that the vehicle 50 is waiting for a signal from the current information and the traffic information of the vehicle 14, and to cancel the public mode when it is necessary to start immediately after the stop.

  If the remaining transition time decreases, the vehicular communication device 100 notifies the user of the remaining transition time. In addition, when it is detected that the vehicle 14 ahead transmits, the mode is set to the public mode and the user is notified accordingly. Therefore, even if the traffic light 11 switches to a green light, it is possible to prevent the user who is talking from not being noticed, and the user can start immediately following the vehicle 14 ahead.

  FIG. 2 shows an example of a functional block diagram of the call mode control system 200. As shown in FIG. 2, in this embodiment, the mobile terminal 70 and the vehicle communication device 100 are configured separately. However, for example, when the wide area communication device 21 of the vehicle communication device 100 has a communication function, The vehicle call device 100 may have a call function by itself. In this case, the mobile terminal 70 is not necessary, and the vehicle communication device 100 and the mobile terminal 70 may not communicate.

[Server 60]
The server 60 is a computer having a CPU, ROM, RAM, nonvolatile memory, and an input / output interface as a substance, and the CPU executes a program or is implemented by hardware such as an ASIC (Application Specific Integrated Circuit). It has the information transmission part 61 and the network interface 63. Moreover, traffic information (for example, location information, link travel time, vehicle speed information, traffic jam information, etc.) is memorize | stored in traffic information DB (Data Base) 62.

  The network interface 63 receives the probe information transmitted from the vehicles 14 and 50 by performing protocol processing and the like on the communication data transmitted from the information server of the operator of the mobile terminal 70 via the network 15. The server 60 generates traffic information from the probe information and stores it in the traffic information DB 62. For example, in response to a request from the vehicle 50, the traffic information transmission unit 61 transmits the traffic information with the vehicle 50 as a destination. The traffic information transmitted by the server 60 is, for example, position information and vehicle speed information of the vehicle 14 around the vehicle 50 (for example, a radius of 500 m).

  Based on this traffic information, the vehicle communication device 100 of the vehicle 50 determines whether or not all the vehicles 14 ahead have stopped. Further, it is detected that any vehicle 14 has started.

[Roadside communication device 80]
The roadside communication device 80 is connected to the traffic signal 11 in front of the vehicle 50, and includes a signal information transmission unit 81 that transmits current information of the traffic signal 11 and a communication device 82 that communicates with the vehicle communication device 100. The signal information transmitting unit 81 transmits present information indicating the current display of the traffic light 11 to the vehicle communication device 100 periodically or when the display of the traffic light 11 is switched. Further, referring to, for example, a timer of the traffic light 11, the transition remaining time information until switching to the next display is transmitted to the vehicular communication device 100 every predetermined time (for example, every 5 seconds). In the present embodiment, red signal remaining transition time information is used to detect how long it can be stopped later.

  The communication device 82 performs signal processing on the present information and the remaining transition time information, and then encodes them by, for example, the Manchester method, performs ASK (Amplitude Shift Keying) modulation or QPSK modulation, and transmits them on a 5.8 GHz band carrier wave. . The communication device 82 realizes narrow-area communication (DSRC (Dedicated Short Range Communication)) in which only a predetermined range before and after the roadside communication device 80 is equal to or greater than the “lower limit value of the communication region”.

[Vehicle call device 100]
The vehicle communication device 100 is controlled by the navigation ECU 30. The navigation ECU 30 includes a wide area communication device 21, a GPS receiver 22, a vehicle speed sensor 23, a gyro sensor 24, a map DB 25, a narrow area communication device 26, a BT module 27, an input unit 28, a display 29, a speaker 31, and a microphone 32. They are connected via a CAN (controller area network) or a dedicated line.

  The wide area communication device 21 is connected to, for example, the base station 16 of the mobile terminal 70 or a wireless LAN access point, and receives the traffic information transmitted from the server 60. Since the traffic information transmitted by the server 60 is divided into packets based on a predetermined communication protocol (for example, TCP / IP), the wide area communication device 21 assembles it according to the packet number and receives the traffic information. When transmitting probe information, the server 60 stores the IP address of the server 60, the IP address of the vehicle 50 (actually no IP address is assigned to the vehicle), data length, probe information, and error correction code in a frame. 60.

  The GPS receiver 22 detects the position of the vehicle 50 based on the arrival time of radio waves transmitted from, for example, a GPS (Global Positioning System) satellite. The navigation ECU 30 accumulates the travel distance detected by the vehicle speed sensor 23 at this position in the direction detected by the gyro sensor 24, and estimates the position of the traveling vehicle 50 with high accuracy.

  The map DB 25 stores road map information in which links corresponding to actual roads and nodes representing intersections of links are associated with the position information. Since the table storing link information includes link length, width, connection node, connection direction, and the like, a road network can be formed from the road map information in the map DB 25. In addition, the map DB 25 stores road types such as automobile roads and general roads for each link, and location information of facilities such as parking lots, restaurants, gas stations, and stations.

  The narrowband communication device 26 performs bandpass filtering, intermediate wave generation, amplification, ASK demodulation, and the like on the carrier wave transmitted from the communication device 82, and receives the current indication information and the remaining transition time information. The narrow area communication device 26 can transmit information on the vehicle 50 to the roadside communication device 80 in the same procedure as the communication device 82.

  The BT module 27 communicates with the mobile terminal 70 in accordance with a communication standard called Bluetooth (registered trademark, hereinafter referred to as BT). Note that this communication method is only one form, and wireless communication such as ZIGBEE (registered trademark) or UWB (Ultra Wide Band), or wired connection may be used.

  Similarly, the mobile terminal 70 has a BT module 71 for communicating with the BT module 27. The BT module 27 transmits to the mobile terminal 70 mode setting information that requests the mobile terminal 70 to set the public mode or cancel the public mode. The BT modules 27 and 71 are one mode of the hands-free device, and it is not necessary to wirelessly connect the vehicle communication device 100 and the mobile terminal 70, and they may be connected by wire. Since the vehicular communication device 100 and the mobile terminal 70 are connected, the voice uttered by the driver is transmitted from the BT module 27 to the BT module 71 via the microphone 32, and thereafter the same as the call using the mobile terminal 70. Communication with the base station 16 is controlled. The audio data received by the mobile terminal 70 is transmitted from the BT module 71 to the BT module 27 and output from the speaker 31.

Communication using the BT modules 27 and 71 will be briefly described. Each of the BT modules 27 and 71 includes an RF unit that establishes wireless communication as a physical layer, and a BT unit that performs processing according to the specifications of the BT. BT (synchronous connection oriented) connection and ACL (Asynchronous Connectionless Link) are defined in BT as connection methods of the RF unit. The SCO connection is a line connection type point-to-point link formed between the BT modules 27 and 71, and is mainly used for transferring voice data. ACL
The connection is a link for performing a packet switching type connection between BT modules, and is mainly used for data transfer.

  A unique ID is given to the BT modules 27 and 71. When connecting, the communication partner is identified by this ID. Also, when the BT modules 27 and 71 are connected for the first time, it is necessary to input a PIN key (password). When the correct PIN key is input and pairing is completed, the BT module 71 of the mobile terminal 70 is activated. When the two approach in state, they are automatically connected.

  In BT, mutual connection is ensured by providing both master and slave BT modules 27 and 71 with the same profile. For example, GAP (Generic Access Profile), SAD (Service Discovery Application Profile), SPP (Serial Port Profile), HFP (Hands Free Profile), OPP (Object Push Profile), PBAP (Phone Book Access Profile), etc. It is prepared. Among these, the HFP defines input / output of voice from the BT modules 27 and 71 located at remote locations, and enables a hands-free call. For example, it stipulates handling of AT commands, transmission of radio wave strength and caller ID notification, use of redial and telephone book functions, echo cancellation, etc. due to the nature of telephone calls. The PBAP is a profile that defines a procedure such as transfer of a phone book stored in the mobile terminal 70, and can transfer the phone book of the mobile terminal 70 to the vehicle call device 100 automatically or by user operation.

  The input unit 28 is a user interface for the user to input operation information to the vehicle call device 100 such as a keyboard, a remote controller, a voice input device, or a touch panel that detects a contact position of the display 29 formed on the display 29. is there. Further, in this embodiment, a switch for operating on-hook / off-hook for responding to an incoming call is provided, and a call can be made by selecting the other party in the phone book displayed on the display 29 on the touch panel. .

  The display 29 is a display means such as a liquid crystal display, an organic EL display, and a head-up display, and is used to display a road map, a telephone book, a navigation operation menu, a media source selection menu such as a television, and the like. In addition, the speaker 31 prompts the user to operate the vehicle before turning right or left on the route to the destination, and outputs a voice message that guides the user to the destination. The microphone 32 is, for example, an array microphone in which a plurality of omnidirectional microphones are arranged in a lattice pattern, and is provided in, for example, an A pillar, a ceiling portion, a center cluster, or the like.

[Mobile terminal 70]
The mobile terminal 70 is a communication device that is carried when a user gets on, and is capable of calling and data communication with the other user via the base station 16. A PDA (Personal Data Assistant), a notebook computer, or the like may be used as long as it has a call function. The mobile terminal 70 of the present embodiment has a mode switching button 72 that allows the user to switch between setting and canceling the public mode. For example, the setting and canceling of the public mode can be switched alternately by long pressing. In addition, the mobile terminal 70 switches between setting and canceling the public mode based on the mode setting information transmitted from the vehicle call device 100.

[Functional block of the navigation ECU 30]
FIG. 3 shows an example of a functional block diagram of the navigation ECU 30. The navigation ECU 30 is a computer having a CPU, ROM, RAM, nonvolatile memory, and the like. The stop determination unit 41, the remaining time determination unit 42, the status notification unit 43, and the public mode setting / cancellation unit 44 are realized by execution of a program by the CPU or hardware such as an ASIC.

  The stop determination unit 41 determines whether or not the vehicle 50 is stopped by a signal. The stop determination part 41 detects that the display of the traffic signal 11 ahead is red from the present information received by the narrow area communication device 26. Further, even if the traffic light is red, if the vehicle 14 ahead is moving, the vehicle 50 also needs to move, so whether or not the vehicle 14 is stopped from the traffic information received by the wide area communication device 21. judge. Specifically, when it is detected that the display information of the traffic light 11 is red, the stop determination unit 41 requests traffic information from the server 60. The traffic information includes position information and vehicle speed information of the vehicles 14 around the vehicle 50. The position information of the vehicle 50 is known from the GPS receiver 22 and the like, and the position of the traffic light 11 is known to the vehicle 50 because it is stored in the map DB 25, for example. Therefore, for example, the stop determination unit 41 identifies the vehicle 14 that is the link on which the vehicle 50 is traveling and is between the vehicle 50 and the traffic light 11 from the position information received from the server 60. And the stop determination part 41 determines with reference to the speed information of the specified vehicle 14, and if it is below predetermined, the vehicle 50 will also stop for a while (henceforth a stop continuation estimation state). When the stop determination unit 41 determines that the stop continuation estimation state is in the stop continuation estimation state, the remaining time determination unit 42 determines whether or not the transition remaining time information received by the narrow area communication device 26 has become equal to or less than a predetermined value. For example, when the remaining transition time is 5 to 10 seconds or less, it is determined that the remaining transition time until switching to a green signal is equal to or less than a predetermined value.

  The situation notification unit 43 notifies the user of the remaining transition time. There are two types of transition modes: a notification mode regardless of the remaining transition time, and a notification mode when the remaining transition time becomes a predetermined value or less. The status notification unit 43 displays the remaining transition time on the display 29 and outputs it from the speaker 31 as a voice message. Considering that the user often does not look at the display 29, it is preferable to output at least a voice message. Thereby, since the user changes to a green light, the user can grasp that the vehicle 50 needs to be started. In addition, when the public mode is canceled or when the public mode is set, the user is notified of this.

  The public mode setting / cancellation unit 44 determines that the stop determination unit 41 is in the stop continuation estimation state, and if the remaining transition time is equal to or greater than the threshold T, mode setting information for requesting to cancel the public mode 70. The threshold value T may be a fixed value or a variable value determined from the time required for a call. In the case of a fixed value, the average call time set by the user is the threshold T, and in the case of a variable value, for example, the recording time stored in the answering machine of the mobile terminal 70 is the threshold T. The recording time is transmitted from the mobile terminal 70 to the vehicle communication device 100.

  When the remaining transition time becomes equal to or less than the predetermined time, the public mode setting / cancelling unit 44 transmits mode setting information for requesting setting to the public mode to the mobile terminal 70. Therefore, the mobile terminal 70 can be set / released in the public mode based on the mode setting information.

[Operation Procedure of Call Mode Control System 200]
FIG. 4 is a flowchart illustrating a procedure in which the vehicle communication device 100 cancels and sets the public mode of the mobile terminal 70. The flowchart of FIG. 4 starts when, for example, the ignition is on and the vehicle speed falls below a predetermined value. The mobile terminal 70 is set in advance to the public mode by a user operation or the vehicle call device 100 of the present embodiment.

  While traveling, the narrow area communication device 26 receives the present information of the traffic light 11 when passing through the communication area of the roadside communication device 80 (S10). The stop determination part 41 determines whether the display of the traffic signal 11 ahead is red from present information (S20). When the display is not red (No in S20), it is determined that the vehicle speed of the vehicle 50 has not decreased due to the signal waiting (S30). In step S30, the public mode is not canceled.

  When the display of the traffic light 11 is red (Yes in S20), the stop determination unit 41 requests the surrounding traffic information from the server 60 using the wide area communication device 21 (S40). The stop determination unit 41 extracts the vehicle speed information of the vehicle 14 between the vehicle 50 and the traffic light 11 from the traffic information.

  And it is determined whether all the vehicles 14 between the vehicle 50 and the traffic light 11 have stopped (S50). This stop may be a vehicle speed (for example, 5 km / h) or less at which the vehicle speed may not be completely zero and can be regarded as being stopped.

  When all the vehicles 14 are not stopped (No in S50), even if the display of the traffic light 11 is red, it is determined that the vehicle speed of the vehicle 50 has not decreased due to the signal waiting (S30). Such a situation occurs, for example, due to a decrease in the vehicle width caused by waiting for a right turn vehicle, a bus stop or construction work.

  When all the vehicles 14 have stopped (Yes of S50), the stop determination part 41 determines with it being a stop continuation estimation state. And the narrow area communication apparatus 26 receives the transition remaining time information transmitted from the roadside communication apparatus 80 (S60). Thereby, the latest transition remaining time information is obtained. If the latest transition remaining time information is equal to or less than the threshold value T, the vehicle may start immediately, and the mode is not switched to the public mode.

  The public mode setting / cancellation unit 44 transmits mode setting information requesting to cancel the public mode from the BT module 27 to the mobile terminal 70 (S70). As a result, the public mode of the mobile terminal 70 is canceled, and incoming calls are possible.

  The status notification unit 43 notifies the user that the public mode has been canceled and the transition remaining time information. For example, the display 29 displays “The public mode of the mobile terminal has been cancelled. The remaining XX seconds until the signal turns blue” and a similar voice message is displayed from the speaker 31. Either display or voice notification may be used.

  When the public mode is canceled, the stop determination unit 41 receives the traffic information from the server 60 every predetermined cycle time using the wide area communication device 21 (S80). Then, similarly to step 50, it is determined whether all the vehicles 14 between the vehicle 50 and the traffic light 11 are stopped (S90).

  When all the vehicles 14 have stopped (No of S90), the remaining time determination part 42 determines whether the remaining time became below predetermined (S100). When all the vehicles 14 are stopped and the remaining transition time is sufficient, the process returns to step S80, receives traffic information from the server 60, and repeats the same determination. In other words, it is always determined whether or not the vehicle 14 ahead has traveled and whether or not the remaining transition time has become a predetermined time or less.

  And when it is detected from the change of vehicle speed information or position information that one of the vehicles 14 ahead has started (Yes of S90), stop judgment part 41 detects the end of a stop continuation presumed state, and sets public mode The mode setting information for requesting the cancellation unit 44 to set the public mode is transmitted from the BT module 27 to the mobile terminal 70 (S120). In addition, the status notification unit 43 displays, for example, “The mobile terminal has been set to the public mode” on the display 29, outputs a similar voice message from the speaker 31, and sets the public mode to the user. Notify that. Either display or voice notification may be used.

  In addition, when the remaining time determination unit 42 determines that the remaining transition time has become equal to or less than the predetermined time (Yes in S100), the status notification unit 43 displays, for example, “remaining ΔΔ seconds until the signal turns blue. ”And a similar voice message is output from the speaker 31 to notify the user of the remaining transition time. Either display or voice notification may be used. Thereby, the user can grasp | ascertain the time until a signal turns into blue.

  Next, the public mode setting / cancelling unit 44 transmits mode setting information for requesting setting of the public mode from the BT module 27 to the mobile terminal 70, and notifies the user to that effect (S120).

  The call mode control system 200 according to the present embodiment determines whether the vehicle 50 is waiting for a signal from both the current information of the traffic light 11 and the information indicating whether all the vehicles 14 up to the traffic light 11 are stopped. The determination is made and the stop continuation estimation state is detected when the remaining transition time is equal to or greater than the threshold value T, so that it is possible to avoid a situation where the vehicle 50 has to start immediately after canceling the public mode. In addition, since the user is notified when the remaining transition time is less than or equal to a predetermined time, it is possible to prevent the user from concentrating on the conversation and not being aware of it even if a green light is generated.

  In the first embodiment, the communication with the roadside communication device 80 is detected to detect the signal waiting state, and the public mode is canceled. However, the vehicle 50 may stop even in a place where there is no signal. When the vehicle 50 stops even in a place where there is no signal ahead, it is possible to receive a call by canceling the public mode, and the voice recorded on the answering machine can be heard, so that the operability is improved. In the present embodiment, a vehicle communication device 100 that detects a state in which the vehicle 50 continues to stop for a predetermined time or longer even when there is no signal ahead (for example, traffic jam) and cancels the public mode will be described.

  FIG. 5A shows an example of a schematic configuration diagram of the call mode control system 200 of the present embodiment. In FIG. 5A, the same components as those in FIG. In FIG. 5A, the roadside communication device 80 and the traffic light 11 are not provided. On the other hand, the vehicles 14 and 50 are stopped under the influence of construction.

  In the state of FIG. 5A, for example, when the vehicle 14B leaves the waiting train, as shown in FIG. 5B, the subsequent vehicles 14C to 14Z are packed forward, but the vehicle 14Z finally starts. Until the vehicle 14B, the vehicles following the vehicle 14B show start delays one after another, so a waiting time is required until the vehicle 50 starts after the vehicle 14B leaves. In the present embodiment, the waiting time of the vehicle 50 is predicted from the start delay of the subsequent vehicle 14C and the like, and this waiting time is notified to the user (hereinafter referred to as the remaining start time). If the remaining start time decreases, the user is notified of this.

  Since all the vehicles 14 ahead are detected to be stopped, it is possible to prevent the public mode from being canceled when the vehicle 50 needs to start immediately after stopping. In addition, even if there is no traffic light 11, the vehicle call device 100 can notify the user of the time until the start, and can prevent the user from concentrating on the call and not being aware of the need for the start.

  FIG. 6 shows an example of a functional block unit of the navigation ECU 30. In FIG. 6, the same parts as those in FIG. FIG. 6 is different in that a remaining time calculation unit 45 is provided instead of the remaining time determination unit 42. The remaining time calculation unit 45 detects the start delay time from several of the following vehicles 14 after the vehicle 14B starts, and calculates the remaining start time from the start delay time and the number of vehicles from the vehicle 14 to the vehicle 50. . Note that the start of each vehicle 14 is detected from vehicle speed information received from the server 60 (which is greater than or equal to a predetermined value by the start) or change in position information.

  Specifically, for example, when the time at which the vehicle 14C starts is 3 seconds after the vehicle 14B starts, this 3 seconds is the start delay time. Similarly, when the vehicle 14D starts 7 seconds after the vehicle 14B starts, the start delay time is 4 seconds (7-3). In this manner, the start delay time is calculated for several vehicles such as the vehicle 14C following the vehicle 14B, and the average value (average start delay time) is calculated. If the average start delay time is multiplied by the number of vehicles from the vehicle 14C to the immediately preceding vehicle 14Z, the remaining start time until the vehicle 50 starts is obtained. Since the average start delay time often gradually increases as the number of subsequent vehicles 14 increases, the average start delay time may be corrected with a constant corresponding to the number of vehicles.

  Note that the remaining start time can also be calculated from information received by inter-vehicle communication. When the vehicle 14B starts, the start time information is transmitted to the rear vehicle 14C, and the start time information is relayed to the rear vehicle 14D and the like one after another. Similarly, when the vehicle 14C starts, the vehicle 14C transmits start time information, and relays the start time information to the rear vehicle 14D and the like one after another. Thereby, since the vehicle 50 receives all the start times of the vehicle 14 ahead and the number of relayed vehicles, the average start delay time can be calculated from the start times of several vehicles 14 subsequent to the vehicle 14B, and the relayed vehicle The start delay time can be calculated from the number.

  The status notification unit 43 notifies the user of the remaining start time. It should be noted that the calculation of the remaining start time is always repeated while the vehicle is stopped, and if there is a difference from the already-started remaining time, the re-started remaining time is notified to the user.

[Operation Procedure of Call Mode Control System 200]
FIG. 7 is a flowchart illustrating a procedure in which the vehicle communication device 100 cancels and sets the public mode of the mobile terminal 70. The flowchart in FIG. 7 starts when, for example, the ignition is on and the vehicle speed falls below a predetermined value. The mobile terminal 70 is set in advance to the public mode by a user operation or the vehicle call device 100 of the present embodiment.

  When the vehicle speed falls below a predetermined value, the stop determination unit 41 requests the surrounding traffic information from the server 60 using the wide area communication device 21 (S210). And the stop determination part 41 extracts the vehicle speed information of the vehicle 14 which exists ahead of the vehicle 50 from traffic information, and determines whether all the vehicles 14 ahead of the vehicle 50 are stopped (S220). . By the way, when there is no traffic light 11, since the starting point of traffic congestion is not clear, the vehicle 14 ahead of the vehicle 50 is the vehicle 14 from the vehicle 50 to the front of a predetermined area (for example, 50-100 m), for example. In addition, the stop may not be completely zero, and may be a vehicle speed (for example, 5 km / h) or less that can be regarded as being stopped.

  If all the vehicles 14 ahead have not stopped (No in S220), it is determined that the vehicle speed of the vehicle 50 has not decreased due to a traffic jam (S230). In step S230, the public mode is not canceled.

  When all the vehicles 14 ahead have stopped (Yes of S220), the stop determination part 41 determines with it being a stop continuation estimation state. Then, the public mode setting / cancelling unit 44 transmits mode setting information requesting to cancel the public mode from the BT module 27 to the mobile terminal 70 (S240). As a result, the public mode of the mobile terminal 70 is canceled, and incoming calls are possible. In addition, the status notification unit 43 notifies the user that the public mode has been canceled. For example, “Public mode of mobile terminal has been canceled” is displayed on the display 29, and a similar voice message is displayed from the speaker 31. Either display or voice notification may be used.

  Next, the stop determination unit 41 requests the surrounding traffic information from the server 60 using the wide area communication device 21 (S250). And the stop determination part 41 extracts the vehicle speed information of the vehicle 14 ahead of the vehicle 50 from traffic information, and determines whether the vehicle 14 ahead of the vehicle 50 started (S260). If no vehicle 14 starts, the determinations in steps S250 and S260 are repeated.

  When any of the vehicles 14 starts (Yes in S260), the remaining time calculation unit 45 calculates the remaining start time until the vehicle 50 starts (S270). The remaining time calculation unit 45 calculates the respective start delay times of several vehicles 14C and the like following the vehicle 14B that has started, calculates the average start delay time that is an average value thereof, the number of vehicles from the vehicle 14B to the vehicle 50, and The remaining start time is calculated from

  Then, the remaining time calculation unit 45 determines whether or not the remaining start time has become a predetermined time or less (S280). If the remaining start time is less than or equal to the predetermined time (Yes in S280), the status notification unit 43 displays, for example, “remaining Δ △ seconds until the host vehicle starts” on the display 29, and a similar voice message. Output from the speaker 31 to notify the user of the remaining start time (S290). Either display or voice notification may be used. Thereby, the user can grasp | ascertain the time to start.

  Further, the public mode setting / cancelling unit 44 transmits mode setting information for requesting to set the public mode from the BT module 27 to the mobile terminal 70, and notifies the user to that effect (S300).

  Returning to step S280, if the remaining start time is not less than or equal to the predetermined time (No in S280), the stop determination unit 41 uses the wide area communication device 21 to request the surrounding traffic information from the server 60, and among the vehicles 14 that have already started. The remaining start time is calculated again based on the vehicle 14 closest to the vehicle 50 (S310). As the number of vehicles that have started increases, the error in the remaining start time increases, but the accuracy can be improved by calculating the remaining start time again with reference to the starting vehicle 14 behind.

  Then, the remaining time calculation unit 45 determines whether or not the difference between the remaining start time already notified to the user and the remaining start time calculated again is greater than or equal to a predetermined value (S320). If this deviation is large, there is a risk that preparations for starting will be insufficient if it is shifted later than the actual one, and if it is shifted earlier, the vehicle 14Z ahead will not start immediately after the user prepares for starting. It will be. Therefore, the deviation criterion is, for example, about several seconds at which the user does not feel such a sense of incongruity.

  When the difference between the remaining start time already notified to the user and the newly calculated remaining start time is greater than or equal to a predetermined value (Yes in S320), the status notifying unit 43 displays the newly calculated remaining start time on the display 29 and the like. Is output from the speaker 31 (S330).

  Then, returning to step S280, if the remaining start time decreases, notification of remaining start time (S290), setting of the public mode, and notification to that effect (S300) are executed.

  Since the call mode control system 200 of the present embodiment determines whether or not the vehicle 50 is waiting for a signal based on whether or not all the vehicles 14 that are congested are stopped, immediately after releasing the public mode. It is possible to avoid a situation where the vehicle 50 has to start. In addition, since the start remaining time calculated by detecting the start of the vehicle 14 ahead is notified to the user, it is possible to prevent the user from being aware of the situation in which the user should start focusing on the conversation. In addition, since the remaining start time is always calculated, the accurate remaining start time can be notified.

  In the first embodiment, when the stop of the vehicle 50 due to traffic waiting is detected and the public mode is canceled in the second embodiment, the public mode is canceled. However, when the public mode is automatically canceled even if the user stops at his own will, the vehicle call The operability of the device 100 can be improved. In the present embodiment, a vehicular call device 100 that detects such a stop by the user's will and cancels the public mode will be described.

  FIG. 8 shows an example of a schematic configuration diagram of the call mode control system 200 of the present embodiment. In FIG. 8, the same components as those in FIG. In FIG. 8, the vehicle 50 is stopped, but the vehicle 14 is traveling without traffic jams (it may be jammed). Further, the vehicle 50 stops from the road shoulder more than the vehicle 14, and the vehicle 14 does not travel in front of the vehicle 50. Thus, when stopping on the left shoulder (in the case of left-hand traffic) alone, it is considered that the user has stopped at his own will, not waiting for a left turn.

  The vehicle communication device 100 according to the present embodiment detects a stop by the user's will based on the retreat to the left road shoulder and the presence of the vehicle 14 ahead, and cancels the public mode. In addition to retreating to the left shoulder, for example, the driver's will may be determined when the vehicle stops at a position other than the roadway (for example, parking lot, riverbed, home, etc.).

  FIG. 9 shows a functional block diagram of the navigation ECU 30 of the present embodiment. 9, the same components as those in FIG. 6 are denoted by the same reference numerals, and the description thereof is omitted. In this embodiment, since the remaining start time is not calculated, the functional block diagram of FIG. Further, the stop determination unit 41 determines that the vehicle 50 is determined by the user's intention on the condition that the vehicle 50 is stopped by approaching the left shoulder and that there is no vehicle 14 stopped immediately in front of the vehicle 50. It is determined that the vehicle has stopped.

  When it is determined that the user has stopped at the will of the user, the public mode setting / cancelling unit 44 sets the mobile terminal 70 to the public mode, and the status notification unit 43 notifies the user to that effect.

[Operation Procedure of Call Mode Control System 200]
FIG. 10 is a flowchart illustrating a procedure in which the vehicle communication device 100 cancels and sets the public mode of the mobile terminal 70. The flowchart of FIG. 10 starts when, for example, the ignition is on and the vehicle speed falls below a predetermined value. The mobile terminal 70 is set in advance to the public mode by a user operation or the vehicle call device 100 of the present embodiment.

  When the vehicle speed falls below a predetermined value, the stop determination unit 41 requests the surrounding traffic information from the server 60 using the wide area communication device 21 (S410). And the stop determination part 41 extracts the positional information on the vehicle 14 which is drive | working the same road as the vehicle 50 from traffic information. There are cases where the vehicle 14 is traveling. In this case, when the traffic information is received, about 10 vehicles 14 traveling on the same road may be extracted.

  Then, the stop determination unit 41 determines whether the vehicle 50 is stopped by moving to the left from the position information of the vehicle 50 and the vehicle 14 (S420). The stop determination unit 41 identifies the vehicle 14 traveling on the same road from the position information of the plurality of vehicles 14, plots the position information of the vehicle 14 on the coordinate plane, and performs linear approximation, and the approximate straight line The amount of deviation from the position information of the vehicle 50 (for example, the distance to the approximate curve) is calculated, and if the amount of deviation is greater than or equal to a predetermined amount, it is determined that the vehicle is stopped by the left road shoulder. Whether the vehicle is on the left side or the right side of the road is determined from the traveling direction of the vehicle 50.

  When it is determined that the vehicle is not stopped by moving to the left (No in S420), the stop determination unit 41 determines whether or not the vehicle 50 is stopped at a position other than the roadway (S430). Since the position other than the road is a position other than the road, it can be easily determined by referring to the map DB 25.

  When the vehicle 50 is stopped at a position other than the roadway (No in S430), it is considered that the vehicle 50 is stopped due to a signal waiting or traffic jam. Therefore, the stop determination unit 41 determines that the stop is not due to the user's will, and the public mode The setting / cancellation unit 44 does not cancel the public mode (S440). In this case, the processing of the first or second embodiment is applied to detect a stop due to a signal waiting or traffic jam.

  Returning to step S420, if it is determined that the vehicle 50 is stopped by moving to the left (Yes in S420), or if it is determined that the vehicle 50 is stopped at a position other than the roadway, returning to step S430 (in S430) Yes), the stop determination unit 41 determines whether there is a vehicle 14 stopped immediately in front of the vehicle 50 (S450). For example, the speed information of several vehicles 14 close to the vehicle 50 among the vehicles 14 is extracted, and the vehicles 14 that are not stopped are excluded. Then, the positional information of the stopped vehicle 14 is compared with the positional information of the vehicle 50, and it is determined whether or not the vehicle 14 is in front of the traveling direction of the vehicle 50. “Immediately forward” is, for example, an interval (for example, 2 to 3 m) or less when parallel parking is performed. When the interval is smaller than this, it may be determined that the vehicle 14 is present ahead due to traffic congestion.

  When there is a vehicle 14 that is stopped immediately in front of the vehicle 50 (No in S450), the stop determination unit 41 determines that the stop is not due to the user's intention, such as waiting for a left turn, and the public mode setting / release unit 44 is public. The mode is not canceled (S440).

  When there is no vehicle 14 stopped immediately in front of the vehicle 50 (Yes in S450), the public mode setting / cancelling unit 44 sends mode setting information for requesting to cancel the public mode from the BT module 27 to the mobile terminal 70. Transmit (S460). As a result, the public mode of the mobile terminal 70 is canceled, and incoming calls are possible. In addition, the status notification unit 43 notifies the user that the public mode has been canceled. For example, “Public mode of mobile terminal has been canceled” is displayed on the display 29, and a similar voice message is displayed from the speaker 31. Either display or voice notification may be used.

  Next, the stop determination unit 41 refers to the vehicle speed detected by the vehicle speed sensor 23 (S470), and determines whether or not the vehicle 50 has started (S480). Until the vehicle starts (NO in S480), the public mode is canceled because the user has stopped at the will of the user.

  When the vehicle 50 starts (Yes in S480), the public mode setting / cancelling unit 44 transmits mode setting information for requesting setting of the public mode from the BT module 27 to the mobile terminal 70, and notifies the user to that effect. (S490). The status notification unit 43 displays, for example, “The mobile terminal 70 has been set to the public mode” on the display 29, and outputs a similar voice message from the speaker 31 to notify the user of the remaining start time. Either display or voice notification may be used. Thereby, the user can grasp that the public mode is set.

  According to the present embodiment, it is possible to detect that the vehicle 50 is stopped not only based on whether or not the vehicle is traveling, but also to cancel the public mode. Can prevent the public mode from being canceled. Further, when the start of the vehicle 14 is detected, the public mode is set and the user is notified of this, so that the user can grasp that the public mode is set. Further, even when the user has not stopped at the will of the user, the operation procedure of the first and second embodiments is further applied to detect and notify the user of the time until stoppage and start due to traffic jams or traffic jams. It is possible to prevent the user from noticing the need to start in place of the green light.

It is an example of the schematic block diagram of a telephone call mode control system (Example 1). It is an example of a functional block diagram of a call mode control system. It is an example of the functional block diagram of navigation ECU (Example 1). (Example 1) which is the flowchart which shows the procedure in which the telephone apparatus for vehicles cancels | releases and sets the public mode of a mobile terminal. It is an example of the schematic block diagram of a telephone call mode control system (Example 2). (Example 2) which is an example of the functional block part of navigation ECU. (Example 2) which is the flowchart which shows the procedure in which the vehicle call apparatus cancels | releases and sets the public mode of a mobile terminal. (Example 3) which is an example of the schematic block diagram of a telephone call mode control system. It is an example of the functional block diagram of navigation ECU (Example 3). (Example 3) which is the flowchart which shows the procedure in which the vehicle call apparatus cancels | releases and sets the public mode of a mobile terminal.

Explanation of symbols

11 traffic light 14, 50 vehicle 30 navigation ECU
41 stop determination unit 42 remaining time determination unit 43 status notification unit 44 public mode setting / cancellation unit 45 remaining time calculation unit 60 server 70 mobile terminal 80 roadside communication device

Claims (9)

In the vehicle call device that restricts the call while traveling and releases the call restriction when the host vehicle is stopped,
First receiving means for receiving the current traffic signal information and the remaining transition time until the signal changes;
Second receiving means for receiving vehicle information of other vehicles between the traffic light and the own vehicle;
Call restriction control for releasing the call restriction when the remaining transition time is equal to or greater than a threshold, the current information indicates stop, and it is determined from the vehicle information of the other vehicle that the other vehicle is stopped. Means,
A notification means for notifying the user of the remaining transition time when the remaining transition time is equal to or less than a predetermined value;
A vehicle communication device characterized by comprising: When it is detected from the vehicle information of another vehicle that one or more other vehicles have started,
The call restriction control means resumes the call restriction, and the notification means notifies the user that the call restriction has been resumed.
The vehicular communication device according to claim 1. When the remaining transition time is equal to or less than a predetermined time, after notifying the user of the remaining transition time, the call restriction control means resumes the call restriction.
The vehicular communication device according to claim 1. In the vehicle call device that cancels the call restriction when the vehicle is stopped while the vehicle is stopped while driving,
First receiving means for receiving vehicle information of other vehicles in a predetermined section ahead of the host vehicle;
When it is determined from the vehicle information of the other vehicle that the other vehicle is stopped, the call restriction control means for releasing the call restriction;
Notification means for notifying the user that the call restriction has been released;
When it is detected from the vehicle information of another vehicle that one or more other vehicles have started, the start remaining time until the own vehicle starts, the start delay time information of a predetermined number of other vehicles following the other vehicle that started, And the remaining time calculation part to calculate from the number of vehicles from the other vehicle that has started to the host vehicle,
When the remaining start time is less than or equal to a predetermined value, the call restriction control unit resumes the call restriction, and the notification unit notifies the user that the call is restricted.
A vehicle communication device characterized by the above. Before the remaining start time is less than or equal to a predetermined value, the remaining time calculation unit includes start delay time information of a predetermined number of other vehicles that follow the other vehicle closest to the host vehicle among other vehicles that have started, and others that have started. Calculate the remaining start time from the number of vehicles from the other vehicle closest to your vehicle to your vehicle,
The notifying means notifies the user of the remaining start time calculated again;
The vehicular communication device according to claim 4. The remaining time calculation unit is not the vehicle information received by the first receiving means, but the position information of the other vehicle relayed by the other vehicle toward the host vehicle, and the start delay time information of the other vehicle and the start Determining the number of vehicles from the other vehicle to the own vehicle, and calculating the remaining start time,
The vehicular communication device according to claim 4. In the vehicle call device that cancels the call restriction when the vehicle is stopped while the vehicle is stopped while driving,
First receiving means for receiving vehicle information of other vehicles around the own vehicle;
From the vehicle information of the other vehicle and the position information of the own vehicle, it is detected that the own vehicle is stopped against the road shoulder, and that the other vehicle is not stopped within a predetermined distance in front of the own vehicle. A call restriction control means for releasing the call restriction;
Notification means for notifying the user that the call restriction has been released;
When the own vehicle has started, the call restriction control unit resumes the call restriction, and the notification unit notifies the user that the call is restricted.
A vehicle communication device characterized by the above. Even if it is not detected that the own vehicle is stopped against the road shoulder, the call restriction control means stops the vehicle at a place other than the roadway, and the other vehicle is within a predetermined distance in front of the own vehicle. If it detects that is not stopped,
8. The vehicle communication device according to claim 7, wherein In the call control method of the vehicle call device for restricting the call during traveling and canceling the call restriction when the own vehicle is stopped,
Receiving a transition remaining time until the first receiving means changes the indication information of the preceding traffic light and the signal; and
A second receiving means for receiving vehicle information of other vehicles between the traffic light and the own vehicle;
A step of determining whether the remaining transition time is equal to or greater than a threshold, the presenting information indicates a stop, and whether or not the other vehicle is stopped from the vehicle information of the other vehicle;
A call restriction control means for releasing the call restriction;
A step of notifying the user of the remaining transition time when the remaining transition time becomes a predetermined time or less;
A call control method comprising:

Images