JP2006279751A - Navigation apparatus, program therefor, radio wave communication apparatus, and program therefor - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To restrict a driver among crew members of a vehicle selectively to use a remote controller operation and a mobile telephone separately. <P>SOLUTION: A navigation apparatus for the vehicle measures a receiving level by switching an antenna near a driving seat and an antenna near a passenger seat (120 to 130), and uses the antenna which has received a stronger level as the antenna for communication (140). When a remote control command is received from a Bluetooth apparatus (145), the antenna having a higher receiving level at the present moment is the antenna at the driving seat side (step 150). The execution of the remote control command is restricted (step 165) only when the receiving level in the antenna at the driving seat side reaches a threshold or higher (step 155), and the operation based on the remote control command is executed (step 170) if it is not so. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a navigation device, a program for a navigation device, a radio wave communication device, and a program for a radio wave communication device, and is suitable for use in a navigation device having a hands-free function by Bluetooth communication.

  2. Description of the Related Art Conventionally, navigation devices that operate by operating a mobile phone or a remote controller have been widely used.

  The problem that the driver's attention to driving becomes inadequate when the driver uses such a remote control or mobile phone while driving has become apparent. For this reason, it is desired that the driver in the driver's seat of the vehicle cannot operate the mobile phone or the remote control. However, it is not desirable from the viewpoint of convenience that the remote control and the mobile phone cannot be operated by passengers other than the driver.

  The present invention has been made in view of the above points, and it is an object of the present invention to provide a novel technique for selectively restricting a remote control operation by a driver or a single use of a mobile phone among vehicle occupants.

  In order to achieve the above object, according to the first aspect of the present invention, a radio wave signal is received at a stronger level of either the first antenna or the second antenna closer to the driver's seat than the first antenna. A radio wave received from the second antenna based on the fact that the reception antenna determination means and the reception antenna determination means determine that the second antenna has received at a stronger level. The navigation device includes an execution restriction unit that restricts execution of a remote operation command included in the signal.

  If the second antenna closer to the driver has a higher radio wave signal reception level than the first antenna, the radio wave source is in the driver's seat, that is, the radio wave is transmitted. Originally based on the fact that the driver is likely to be operating. In view of this fact, the navigation apparatus according to the present invention determines that the second antenna closer to the driver's seat has received the radio signal at a stronger level than the first antenna. By restricting the execution for remote operation included in the signal, the remote control operation by the driver can be selectively restricted.

  Further, the invention according to claim 2 is the reception level determination means for determining whether or not the reception level of the radio wave signal by the second antenna is equal to or higher than a threshold value in the navigation device according to claim 1. The execution limiting means determines that the reception antenna determination means has received the second antenna at a stronger level, and the reception level determination means has received by the second antenna. Based on the determination that the level is equal to or higher than the threshold value, execution of a remote operation command included in the radio wave signal received from the second antenna is limited.

  In the present invention, even if the second antenna receives a radio wave signal at a higher level than the first antenna, if the reception level is low, the radio wave signal is transmitted to a seat other than the driver's seat (for example, the rear seat). This is based on the fact that the possibility of being from a seat is high. In view of this fact, the navigation device of the present invention determines that the second antenna has received at a stronger level, and has determined that the reception level by the second antenna is greater than or equal to the threshold value. Based on that, by restricting the execution of commands for remote control included in the radio wave signal received from the second antenna, the selective limitation of remote control operation by the driver can be realized by more precise narrowing down Can do.

  Further, the invention according to claim 3 is the navigation device according to claim 1 or 2, wherein the execution restricting means sets a device type of a radio wave signal transmission source as a device type wirelessly transmitted from the transmission source. A model specifying unit for specifying based on the notification signal, wherein the execution limiting unit is configured to execute a command for remote operation included in the radio wave signal received from the second antenna based on the specification result of the model specifying unit. It is characterized by restricting execution.

  In this way, the navigation device can change the presence / absence of restriction and the contents of restriction for each model of wireless radio wave transmission source, such as a mobile phone, keyboard, mouse, PDA, and the like.

  According to a fourth aspect of the present invention, in the navigation device according to any one of the first to third aspects, the execution restricting means includes a remote operation included in a radio wave signal received from the second antenna. The execution of the command is restricted on the basis of the instruction content of the command.

  With this configuration, the navigation device can change the presence / absence of restrictions and the contents of restrictions for each command instruction content such as scrolling, cursor movement, screen switching, and the like.

  According to a fifth aspect of the present invention, in the navigation device according to any one of the first to fourth aspects, the radio wave signal is a radio wave signal based on a Bluetooth standard. .

  In the invention according to claim 6, which of the first antenna and the second antenna closer to the driver's seat than the first antenna receives the radio wave signal from the mobile phone at a stronger level. Receiving antenna determining means for determining whether the second antenna has received at a stronger level, and restricting a single call for incoming calls from the mobile phone based on the determination that the second antenna has received at a stronger level A radio wave communication device comprising a single call restriction unit for transmitting a radio wave signal.

  If the second antenna closer to the driver has a higher radio wave signal reception level than the first antenna, the radio wave source is in the driver's seat, that is, the radio wave is transmitted. Originally based on the fact that the driver is likely to be operating. In view of this fact, the radio wave communication apparatus of the present invention has determined that the second antenna closer to the driver's seat has received a radio wave signal from the mobile phone at a stronger level than the first antenna. Based on this, by transmitting a radio wave signal that restricts a single call to an incoming call of the mobile phone, the single use of the mobile phone by the driver can be selectively restricted.

  The invention according to claim 7 is the radio wave communication device according to claim 6, further comprising travel determination means for determining whether or not the host vehicle is traveling, wherein the single call restriction means is The traveling determination means transmits a radio wave signal that restricts a single call for incoming calls of the mobile phone based on determining that the host vehicle is traveling.

  In this way, based on the fact that the host vehicle is traveling, by transmitting a radio wave signal that restricts a single call for incoming calls of the mobile phone, the single use of the mobile phone is selectively restricted when the vehicle is running. can do.

  The invention according to claim 8 is the radio wave communication device according to claim 6 or 7, wherein the reception level of the radio wave signal from the mobile phone by the second antenna is greater than or equal to a threshold value. A reception level determination means for determining whether or not the single call restriction means determines that the reception antenna determination means has received the second antenna at a stronger level, and the reception level determination The means transmits a radio wave signal that restricts a single call for an incoming call of the mobile phone based on determining that the reception level by the second antenna is equal to or higher than a threshold value.

  In the present invention, even if the second antenna receives a radio wave signal at a higher level than the first antenna, if the reception level is low, the radio wave signal is transmitted to a seat other than the driver's seat (for example, the rear seat). This is based on the fact that the possibility of being from a seat is high. In view of this fact, the navigation device of the present invention determines that the second antenna has received at a stronger level, and has determined that the reception level by the second antenna is greater than or equal to the threshold value. Based on the above, by selectively transmitting a radio wave signal that restricts a single call with respect to an incoming call of the mobile phone, the selective restriction of the single use of the mobile phone by the driver can be realized by more precise narrowing down.

  The invention according to claim 9 is the wireless radio wave communication apparatus according to any one of claims 6 to 8, wherein the single call restriction means requests a hands-free call for an incoming call of the mobile phone. A radio wave signal is transmitted.

  Further, the radio wave communication device may transmit a radio wave signal requesting a hands-free call for a mobile phone call as a radio wave signal for restricting a single call for a mobile phone call.

  According to a tenth aspect of the present invention, in the radio wave communication device according to any one of the sixth to ninth aspects, the radio wave signal is a radio wave signal based on a Bluetooth standard. And

  According to the eleventh aspect of the present invention, the radio wave signal is received for determining which of the first antenna and the second antenna closer to the driver's seat than the first antenna received at a stronger level. Based on the fact that the antenna determination means and the reception antenna determination means determine that the second antenna has received at a stronger level, a remote radio wave signal received from the second antenna includes A program for a navigation device that causes a computer to function as an execution restriction unit that restricts execution of an operation command.

  Thus, the invention described in claim 1 can also be understood as a navigation device program.

  According to the twelfth aspect of the present invention, which of the first antenna and the second antenna closer to the driver's seat than the first antenna receives the radio wave signal from the mobile phone at a stronger level. The reception antenna determination means for determining the mobile phone and the reception antenna determination means determine that the second antenna has received at a stronger level, so that the single call for the incoming call of the mobile phone is restricted. This is a program for a radio wave communication apparatus that causes a computer to function as a single call restriction unit that transmits a radio wave signal to be transmitted.

  Thus, the invention of claim 6 can also be understood as a program for a radio wave communication device.

(First embodiment)
The first embodiment of the present invention will be described below. In FIG. 1, the hardware block diagram of the vehicle navigation apparatus 1 which concerns on this embodiment is shown. As will be described in detail below, this vehicle navigation device 1 receives a radio wave signal from a wirelessly connected Bluetooth device at a stronger level from the driver's side antenna than the passenger's side antenna. Execution of remote control commands from is restricted.

  As shown in FIG. 1, the vehicle navigation device 1 includes a position detector 11, an operation switch group 12, an image display device 13, a speaker 14, a microphone 15, a RAM 16, a ROM 17, an external storage unit 18, a passenger seat side antenna 19, A driver-side antenna 20, a switch 21, a Bluetooth (referred to as BT in the drawing) device 22, an RSSI circuit 23, and a control circuit 24 are included.

  The position detector 11 has sensors such as a vehicle speed sensor and a GPS receiver, and outputs information for specifying the current position and direction of the vehicle to the control circuit 24 based on the properties of each of these sensors. . The operation switch group 12 includes input devices such as a mechanical switch and a touch panel.

  The external storage unit 18 includes a nonvolatile storage medium such as a DVD, a CD, and an HDD and a device that reads (and writes) data from and to the storage medium, and is read and executed by the control circuit 24 In addition, map data for route guidance is stored. Further, the external storage unit 18 of the present embodiment stores a restriction regulation table. FIG. 2 shows an example of the restriction regulation table. The restriction regulation table is data in which an OK or NG value is assigned to each of a set of devices and functions of the vehicle navigation device 1. As will be shown later in the operation of the vehicle navigation device 1, the device in this restriction regulation table means the model type of the Bluetooth device wirelessly connected to the vehicle navigation device 1, and the function is wirelessly transmitted from the Bluetooth device. It means the type of the content of the remote operation command, and OK and NG mean that the command of the content transmitted from the model type part can be executed or not, respectively.

  The passenger seat side antenna 19 and the driver seat side antenna 20 are antennas for transmitting and receiving radio waves in the 2.4 GHz radio band, which are attached in the vicinity of the passenger seat and the driver seat in the passenger compartment, respectively. FIG. 3 shows a typical mounting example of the passenger side antenna 19 and the driver side antenna 20 in the passenger compartment front part 2. In this figure, the passenger seat side antenna 19 and the driver seat side antenna 20 are attached to the left end and the right end of the foremost instrument panel 3 in the passenger compartment, respectively. Further, parts other than the passenger seat side antenna 19 and the driver seat side antenna 20 of the vehicle navigation apparatus 1 are installed at the center of the instrument panel 3. With this arrangement, the passenger seat side antenna 19 becomes the antenna closest to the passenger seat 4, and the driver seat side antenna 20 becomes the antenna closest to the driver seat 5.

  The switch 21 is a circuit that switches between a state in which the Bluetooth device 22 and the passenger seat side antenna 19 are connected and a state in which the Bluetooth device 22 and the driver seat side antenna 20 are connected under the control of the control circuit 24.

  The Bluetooth device 22 is a device for performing wireless connection with devices (hereinafter referred to as Bluetooth devices) such as a mobile phone, a PDA, a mouse, and a keyboard capable of Bluetooth communication by Bluetooth, which is one of the wireless communication standards. It operates based on the control of the control circuit 24. Specifically, the Bluetooth device 22 converts a signal received from a connected antenna of the passenger side antenna 19 and the driver side antenna 20 to a predetermined frequency according to the Bluetooth standard, Demodulation, amplification, A / D conversion, and the like are performed, and the resulting data is output to the control circuit 24. The transmission data received from the control circuit 24 is subjected to predetermined D / A conversion in accordance with the Bluetooth standard. Then, amplification, modulation, frequency conversion, and the like are performed, and the resultant data is output to the connected antenna of the passenger side antenna 19 and the driver side antenna 20.

  The RSSI circuit 23 detects the reception level (RSSI) of the received signal of the passenger side antenna 19 and the driver side antenna 20 that is connected to the Bluetooth device 22, and a signal indicating the detected RSSI level. Is output to the control circuit 24.

  The control circuit (corresponding to a computer) 24 executes a program for the operation of the vehicle navigation device 1 read from the ROM 17 and the external storage unit 18, and in executing the program, the RAM 16, ROM 17, and external storage unit 18. Information is read out, information is written to the RAM 16 and the external storage unit 18, the position detector 11, the operation switch group 12, the image display device 13, the speaker 14, the switch 21, the Bluetooth device 22, the RSSI circuit 23, and the signal Give and receive.

  Specific processing performed by the control circuit 24 executing the program includes current position specifying processing, route guidance processing, and hands-free processing.

  The current position specifying process is a process for specifying the current position of the vehicle, the vehicle speed, the direction of the vehicle, and the like based on a signal from the position detector 11 using a known technique such as map matching.

  The route guidance process receives the input of the destination by the user from the operation switch group 12, calculates the optimum guidance route from the current position to the destination, the calculated guidance route, destination, waypoint, current location, etc. Is output to the image display device 13 and a guidance voice signal for instructing a right turn, a left turn, etc. is output to the speaker 14 when necessary, for example, when the host vehicle arrives in front of the guidance intersection. It is a process to output.

  In the hands-free processing, the voice based on the voice signal from the other party of the telephone call received from the mobile phone connected via Bluetooth via the Bluetooth device 22 is output to the speaker 14, emitted by the user in the vehicle, and detected by the microphone 15. This is a process of transmitting a voice signal based on voice to the other party of the telephone call via the Bluetooth device 20 and the mobile phone.

  Further, the control circuit 24 always executes the program 100 shown in FIG. In executing the program 100, the control circuit 24 first performs antenna switching in step 105. Antenna switching refers to controlling the switch 21 to disconnect the antenna currently connected to the Bluetooth device 22 from the passenger side antenna 19 and the driver side antenna 20 and to connect to the current Bluetooth device 22. This refers to connecting a non-antenna to the Bluetooth device 22. Hereinafter, the antenna connected to the Bluetooth device 22 is referred to as an antenna used.

  Subsequently, in step 110, it is determined whether or not the communication partner Bluetooth device is in the vehicle. Specifically, this determination is realized by determining whether or not the Bluetooth device 22 can receive an inquiry (search signal) defined in Bluetooth transmitted from another Bluetooth device. Further, this determination may be realized by causing the Bluetooth device 22 to transmit a predetermined connection request signal to Bluetooth and determining whether or not the Bluetooth device 22 can receive the response. If the Bluetooth device of the communication partner is in the vehicle, step 115 is subsequently executed. If not, step 105 is executed again. As described above, the use antenna is continuously switched until a communication partner is found by the processing of steps 105 and 110.

  In step 115, the Bluetooth device 22 is made to establish normal Bluetooth communication with the antenna that detected the communication partner. At the time of this wireless connection, along with paging, link key exchange, etc., data indicating each other's model (mobile phone, keyboard, mouse, PDA, etc.) is exchanged.

  Subsequently, in step 120, the reception level of the currently used antenna is specified based on the signal of the reception level from the RSSI circuit 23. In step 125, the antenna is switched by the same operation as in step 105. In step 130, the reception level of the antenna currently used, that is, the antenna different from the antenna whose reception level is measured in step 125, is specified based on the reception level signal from the RSSI circuit 23.

  Subsequently, in step 135, the two reception levels measured in steps 120 and 135 are compared to determine which reception level is higher. In step 140, the switch 21 is controlled so that the antenna having the higher reception level is used. However, even if the reception level from the passenger side antenna 19 is higher, if the difference between the two reception levels is small, the switch 21 is controlled so that the driver side antenna 20 is used.

  Subsequently, in step 145, it is determined whether a remote operation command has been received from the Bluetooth device with which communication has been established via the antenna used. The remote operation command is a signal that requests the vehicle navigation device 1 to perform a specific operation such as input of a destination, scrolling of a map to be displayed, map enlargement / reduction, screen switching, cursor movement, and the like. If a remote operation command is received, step 150 is subsequently executed. If not received, step 120 is subsequently executed.

  By the loop processing of steps 120 to 145 as described above, the control circuit 24 compares the reception levels of the passenger side antenna 19 and the driver side antenna 20 until receiving the remote operation command, and the higher reception level is obtained. Repeat the process of using the antenna.

  In step 150, whether or not the remote command is received by the driver's seat side antenna 20 is determined based on whether or not the currently used antenna is the driver's seat side antenna 20. If it is received by the driver side antenna 20, then step 155 is executed. If it is received by the passenger side antenna 19, then step 170 is executed.

  In step 155, it is determined based on the signal from the current RSSI circuit 23 whether or not the reception level from the driver's seat side antenna 20 is equal to or higher than a threshold value. Here, the threshold value may be a constant value (for example, −60 dBm) stored in advance, a value that varies based on various conditions, or a value that is randomly determined within a certain range. It may be. If the reception level is equal to or higher than the threshold value, step 160 is subsequently executed. If the reception level is lower than the threshold value, step 170 is subsequently executed.

  In step 160, it is determined whether or not the received remote operation command is an executable command based on the restriction regulation table of FIG. 2 and the model data of the communication partner acquired in step 115. That is, if the OK value is assigned to the combination of the model data and the instruction content included in the remote operation command in the restriction regulation table, the received remote operation command is assumed to be an executable command, and NG If a value is assigned, the received remote operation command is not an executable command. Therefore, according to the restriction provision table, for example, when the transmission source of the remote operation command is a mobile phone, any remote operation command cannot be executed, and when the transmission source is a mouse, only the remote operation command indicating scrolling is executed. It becomes possible. If the received remote operation command is an executable command, step 170 is subsequently executed. If the received remote operation command is not an executable command, step 165 is subsequently executed.

  In step 170, processing based on the content instructed by the remote operation command (for example, input of a destination, scrolling of a displayed map, enlargement / reduction of a map, screen switching, cursor movement, etc.) is performed. In step 165, the remote control command processing is not executed, and instead, the image display device 13 and the speaker 14 are notified by an image and sound that the command cannot be executed. Subsequent to steps 165 and 170, step 120 is executed again.

  When the control circuit 24 executes the program 100 as described above, the vehicle navigation apparatus 1 receives a remote operation command from the Bluetooth device after establishing communication with the Bluetooth device (see steps 105 to 115). (See step 145), the two antennas 19 and 20 are switched to measure the reception level (see steps 120 to 130), and it is determined which one has received at a stronger level (see step 135). The operation of using the receiving antenna as the antenna to be used (see step 140) is repeated. Each time an operation command is received from the Bluetooth device (see step 145), (A) the currently used antenna, that is, the antenna with the higher reception level than the current time is the driver seat side antenna 20 (step 150). (B) The reception level at the driver's seat side antenna 20 is equal to or higher than the threshold (see step 155), and (C) the type of the remote operation command can be executed in light of the restriction regulation table. If both of the three conditions (see step 160) are satisfied, the process according to the instruction content of the remote operation command is not executed, but a notification that the command cannot be executed is sent instead (see step 165). . Further, when any one of the above conditions (A), (B), and (C) is not satisfied, a process according to the instruction content of the remote operation command is executed (see step 170).

  As described above, when the condition (A) is not satisfied, the received remote operation command is executed when the passenger-side antenna 19 transmits the radio wave signal rather than the driver-side antenna 20. This is because if the reception level is high, there is a high possibility that the Bluetooth device from which the radio wave is transmitted is not in the driver's seat.

  Even if the condition (A) is satisfied, if the condition (B) is not satisfied, the received remote operation command is executed by the driver side antenna 20 as an assistant. This is because even if a radio wave signal is received at a level stronger than that of the seat-side antenna 19, if the reception level is low, the radio wave signal is likely to be from the rear seat.

  As described above, only when the conditions (A) and (B) are satisfied, the execution of the remote operation command based on the restriction regulation table is restricted (see steps 160, 165, and 170). Therefore, selective restriction of remote control operation by the driver can be realized by narrowing down with high accuracy.

In addition, the vehicle navigation apparatus 1 can perform detailed command execution restrictions based on a set of wireless radio wave transmission source models and command instruction contents by using the restriction regulation table.
(Second Embodiment)
Next, a second embodiment of the present invention will be described. The hardware configuration of the vehicle navigation device 1 of the present embodiment is the same as that of the vehicle navigation device 1 of the first embodiment. The operation of the vehicle navigation device 1 of the present embodiment is the same as that of the vehicle navigation device 1 of the first embodiment, except that the control circuit 24 always executes the program 200 instead of the program 100. As described in detail below, the vehicle navigation apparatus 1 according to the present embodiment transmits a radio wave signal from a mobile phone wirelessly connected via Bluetooth to the driver side more than the antenna on the passenger side. When receiving at a stronger level from the antenna, the mobile phone's single call is restricted. Hereinafter, only the parts of the present embodiment different from the first embodiment will be described.

  The processes of steps 205, 210, 215, 220, 225, 230, 235, and 240 by the control circuit 24 are respectively performed in steps 105, 110, 115, 120, 125, 130, 135, and 120 of the program 100 in the first embodiment. This is equivalent to the process 140. However, in the present embodiment, the partner that establishes Bluetooth communication is a mobile phone.

  When this mobile phone establishes a Bluetooth communication with the vehicle navigation device 1 and there is an incoming call, the mobile phone transmits an incoming command to the vehicle navigation device 1 and then receives a press of an off-hook button. A single call command is transmitted to the vehicle navigation device 1 and a response is awaited. The single call command is a signal requesting that the mobile phone make a single call. The single call refers to making a call using the microphone and speaker of the mobile phone without using the hands-free function of the vehicle navigation apparatus 1. In addition, the mobile phone starts a single call when it receives a single call permission command from the vehicle navigation device 1 after transmitting the single call command.

  In addition, when the mobile phone receives a hands-free forced command from the vehicle navigation device 1, the mobile phone starts a call process using the hands-free function of the vehicle navigation device 1. That is, the voice from the other party is transmitted to the vehicle navigation apparatus 1 and the response voice received from the vehicle navigation apparatus 1 is sent to the other party.

  After step 240 of the program 200, the control circuit 24 determines in step 245 whether or not the above-described incoming command has been received from the mobile phone of the Bluetooth communication partner, and if received, executes step 250. If not received, step 220 is executed again.

  By the loop processing of steps 220 to 245 as described above, the control circuit 24 compares the reception levels of the passenger side antenna 19 and the driver side antenna 20 until receiving the incoming command, and determines the higher reception level. Repeat the process of using the antenna.

  In step 250, an image and sound notification that the mobile phone has received an incoming call is performed using the image display device 13 and the speaker 14.

  Subsequently, in step 255, it is determined whether or not there is an operation for performing a predetermined hands-free call with respect to the operation switch group 12. If there is an operation, step 260 is executed, otherwise, step 270 is executed. In step 260, a hands-free forced command is transmitted to the mobile phone to execute the above-described hands-free process in parallel with the program 200. In step 265, the process waits until the hands-free process is completed. Step 220 is executed again.

  In step 270, it is determined whether or not a single call command has been received from the mobile phone, that is, whether or not the off-hook button of the mobile phone has been operated. If received, step 275 is subsequently executed and received. If not, step 255 is executed again.

  By the loop of steps 255 and 270, after the incoming call is notified, the user waits for an operation for starting a hands-free call or an operation for starting a single mobile phone call. If there is an operation for starting a hands-free call, If processing is performed and the user performs an operation to start a single phone call, the process proceeds to step 275 and thereafter.

  In step 275, whether or not the incoming command is received by the driver's seat side antenna 20 is determined based on whether or not the currently used antenna is the driver's seat side antenna 20. If it is received by the driver side antenna 20, then step 278 is executed, and if it is received by the passenger side antenna 19, then step 285 is executed.

  In step 278, as in step 155 of the program 100, it is determined based on the signal from the current RSSI circuit 23 whether or not the reception level from the driver's seat side antenna 20 is equal to or higher than the threshold value. If the reception level is equal to or higher than the threshold value, step 280 is subsequently executed. If the reception level is lower than the threshold value, step 285 is subsequently executed.

  In step 280, it is determined whether or not the host vehicle is traveling based on a signal from the vehicle speed sensor of the position detector 11 (that is, whether the vehicle speed is greater than zero or zero). Step 285 is executed, and if it is stopped, step 285 is executed.

  In step 285, the Bluetooth device 22 is controlled so that the above-described single call permission command is transmitted from the vehicle navigation apparatus 1. In step 283, the Bluetooth device 22 is controlled to transmit the above-described hands-free forced command, and then hands-free processing is executed in parallel with the program 200.

  Subsequent to steps 283 and 285, in step 288, it is determined whether or not the call is ended based on whether or not the hands-free process is completed or whether or not a call end notification is received from the mobile phone. If so, then step 20 is executed again, and if the call has not ended, then step 290 is executed.

  The processing of steps 290, 293, 295, 298, and 299 is equivalent to the processing of steps 220, 225, 230, 235, and 240, respectively. Following step 299, step 275 is executed again.

  When the control circuit 24 executes the program 200 as described above, the vehicle navigation apparatus 1 establishes communication with the mobile phone that is the Bluetooth device (see Steps 205 to 215), and then receives an incoming command from the mobile phone. Until the signal is received (see step 245), the two antennas 19 and 20 are switched to measure the reception level (see steps 220 to 230), and which is received at a stronger level (see step 235) and more The operation of using the antenna received at a strong level as the antenna to be used (see step 240) is repeated. Each time an incoming command is received from the mobile phone (see step 245) and a single call command is received (see step 270), (α) the current communication antenna, that is, the reception level is higher than the current level. The higher antenna is the driver's seat side antenna 20 (see step 275), and (β) the reception level at the driver's seat side antenna 20 is equal to or higher than the threshold value (see step 278), and (γ) If both of the three conditions that the host vehicle is running (see step 280) are satisfied, the hands-free call is executed by restricting the single call by the mobile phone and transmitting a signal forcing the hands-free call. To do. (See step 283). In addition, if any one of the above conditions (α), (β), and (γ) is not satisfied, a single call of the mobile phone can be made by transmitting a command for enabling a single call to the mobile phone. Allow (see step 285). Until the call ends (see step 288), the antenna used is switched to the antenna with the higher reception level (see steps 290 to 299), and it is determined whether or not the mobile phone is near the driver's seat. Repeat the operation of sending a signal to allow or restrict single calls.

  As described above, if the condition (α) is not satisfied, the single-speaking call by the mobile phone is permitted because the passenger-side antenna 19 is more likely to receive the radio wave signal than the driver-side antenna 20. This is because if the reception level is high, there is a high possibility that the Bluetooth device from which the radio wave is transmitted is not in the driver's seat.

  Further, even if the condition (α) is satisfied, if the condition (β) is not satisfied, the driver's seat side antenna 20 is allowed to make a single call using a mobile phone. This is because even if a radio wave signal is received at a level stronger than that of the seat-side antenna 19, if the reception level is low, the radio wave signal is likely to be from the rear seat.

  In addition, even if the above conditions (α) and (β) are satisfied, if the condition (γ) is not satisfied, a single call using a mobile phone is permitted. This is because even if the vehicle is operated, it does not hinder driving as long as the vehicle is stopped.

  In this way, only when all the conditions (α), (β), and (γ) are satisfied, the mobile phone is restricted to a single call to force a hands-free call. The selective restriction of the single use of the mobile phone by the driver can be realized by more precise narrowing down.

  In each of the above embodiments, the vehicle navigation device 1 corresponds to a navigation device and a radio wave communication device. Further, the program 100 and the program 200 correspond to a navigation device program, and the program 100 and the program 200 simultaneously correspond to a radio wave communication program. Further, the passenger seat side antenna 19 corresponds to a first antenna, and the driver seat side antenna 20 corresponds to a second antenna.

  In the first embodiment, the control circuit 24 functions as a model specifying unit by executing step 115 of the program 100, and functions as a receiving antenna determination unit by executing steps 120 to 140. Executing step 155 functions as a reception level determining unit, and executing steps 160, 165, and 170 functions as an execution limiting unit.

In the second embodiment, the control circuit 24 functions as a reception antenna determination unit by executing steps 220 to 240 of the program 200, and functions as a reception level determination unit by executing step 278. By executing step 280, it functions as a travel determination means, and by executing steps 283 and 285, it functions as a single call restriction means.
(Other embodiments)
Although the embodiment of the present invention has been described above, the configuration of the present invention is not limited to the above-described embodiment, and includes various forms that can realize the functions of the specific matters of the present invention. is there.

  For example, when the Bluetooth device 22 receives a signal indicating the reception level from the RSSI circuit 23 and can control the switch 21, the process of steps 105 to 140 of the program 100 is performed by the Bluetooth device 22. It may be designed to execute. In this case, if the Bluetooth device 22 notifies the control circuit 24 of the control content of the switch 21, the control circuit 24 can know the current antenna used.

  Further, the command transmitted in step 283 does not have to be a hands-free forced command. For example, if the mobile phone receives a hold command from the vehicle navigation device 1 after transmitting a single call command, and if the response to the incoming call is put on hold, the mobile phone receives a hold command in step 283. May be sent. That is, in step 283, it is only necessary to transmit a signal that restricts a single call of the mobile phone to the mobile phone.

  In the second embodiment, when the mobile phone receives a hands-free forced command from the vehicle navigation device 1 in advance when the off-hook button is operated, the mobile phone performs a hands-free process and performs a single call in advance. If the permission command has been received and the mobile phone alone performs processing for a telephone call, the vehicular navigation device 1 makes the determination in steps 275 to 285 before the step 245, that is, the incoming call. It is performed before receiving a command, and if all of these determinations are affirmative, a hands-free forced command may be transmitted in advance, and if not, a single call permission command may be transmitted in advance.

  If the determination at step 155 of the program 100 is affirmative, it is subsequently determined whether or not the host vehicle is traveling. If the host vehicle is traveling, step 160 is subsequently executed, If not, step 170 may be executed subsequently. That is, the execution of the remote operation command may be limited based on the fact that the host vehicle is traveling.

  The first antenna only needs to be farther from the driver's seat than the second antenna. For example, the first antenna may be near the left rear seat or near the right rear seat.

  Further, in each of the above embodiments, the comparison of the reception levels of the passenger side antenna 19 and the driver side antenna 20 is repeated, but this comparison is performed only once when Bluetooth communication is established. Also good.

  The control circuit 24 may execute the program 100 and the program 200 in combination. That is, if a negative determination is made in step 145, then the determination in step 245 is performed. If the determination in step 245 is negative, step 120 is executed, and if the determination in step 245 is positive, step 250 and subsequent steps are executed. Step 120 may be executed after determining that the call has ended at 288 and 288. Further, when an operation command is received during execution of the loop of steps 275 to 299, steps 150 to 170 may be executed in parallel with the loop.

It is a hardware block diagram of the vehicle navigation apparatus 1 which concerns on embodiment of this invention. It is a chart which shows the restriction regulation table which external storage part 18 memorizes. It is a figure which shows arrangement | positioning of the passenger seat side antenna 19 and the driver's seat side antenna 20 in the passenger compartment front part 2. FIG. 3 is a flowchart of a program 100 executed by a control circuit 24. 3 is a flowchart of a program 200 executed by a control circuit 24. 3 is a flowchart of a program 200 executed by a control circuit 24.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Vehicle navigation apparatus, 2 ... Front part of vehicle compartment, 3 ... Instrument panel,
4 ... Passenger seat, 5 ... Driver seat, 11 ... Position detector, 12 ... Operation switch group,
13 ... Image display device, 14 ... Speaker, 15 ... Microphone, 16 ... RAM, 17 ... ROM,
18 ... External storage medium, 19 ... Passenger side antenna, 20 ... Driver side antenna,
21 ... Switch, 22 ... Bluetooth device, 23 ... RSSI circuit,
24: Control circuit, 100, 200: Program.

Claims (12)

A receiving antenna determining means for determining which radio wave signal is received at a stronger level between the first antenna and the second antenna closer to the driver's seat than the first antenna;
Execution of a remote operation command included in the radio wave signal received from the second antenna based on the fact that the reception antenna determination means determines that the second antenna has received at a stronger level And an execution restriction means for restricting the navigation device. A reception level determination means for determining whether or not a reception level of the radio wave signal by the second antenna is equal to or higher than a threshold value;
The execution limiting unit determines that the reception antenna determination unit has received the second antenna at a stronger level, and the reception level determination unit determines the reception level of the second antenna. 2. The navigation device according to claim 1, wherein execution of a remote operation command included in a radio wave signal received from the second antenna is restricted based on the determination that the threshold value is greater than or equal to a threshold value. . The execution restriction unit includes a model identifying unit that identifies a device type of a transmission source of a radio wave signal based on a device type notification signal wirelessly transmitted from the transmission source,
The execution restriction unit restricts execution of a command for remote operation included in a radio wave signal received from the second antenna based on a specification result of the model specifying unit. 3. The navigation device according to 2. 4. The execution restriction unit restricts execution of a command based on an instruction content of a remote operation command included in a radio wave signal received from the second antenna. The navigation device according to any one of the above. The navigation device according to any one of claims 1 to 4, wherein the radio wave signal is a radio wave signal based on a Bluetooth standard. A receiving antenna determining means for determining which radio wave signal from the mobile phone is received at a stronger level, the first antenna or the second antenna closer to the driver's seat than the first antenna;
Single call restriction for transmitting a radio wave signal for restricting a single call with respect to an incoming call of the mobile phone based on the fact that the reception antenna determination means determines that the second antenna has received at a stronger level And a radio wave communication apparatus. A travel determination means for determining whether or not the host vehicle is traveling;
The single call restriction unit transmits a radio wave signal that restricts a single call for an incoming call of the mobile phone based on the fact that the traveling determination unit determines that the host vehicle is traveling. The radio wave communication apparatus according to claim 6. A reception level determination means for determining whether or not a reception level of the radio wave signal from the mobile phone by the second antenna is equal to or higher than a threshold value;
The single call restriction unit determines that the reception antenna determination unit has received the second antenna at a stronger level, and the reception level determination unit has a reception level by the second antenna. 8. The radio wave communication apparatus according to claim 6, wherein a radio wave signal for restricting a single call with respect to an incoming call of the mobile phone is transmitted based on the determination that the value is equal to or greater than a threshold value. 9. The radio wave communication apparatus according to claim 6, wherein the single call restriction unit transmits a radio wave signal requesting a hands-free call for an incoming call of the mobile phone. 10. The radio wave communication device according to claim 6, wherein the radio wave signal is a radio wave signal based on a Bluetooth standard. A receiving antenna determining means for determining which radio wave signal is received at a stronger level between the first antenna and the second antenna closer to the driver's seat than the first antenna; and
Execution of a remote operation command included in the radio wave signal received from the second antenna based on the fact that the reception antenna determination means determines that the second antenna has received at a stronger level A program for a navigation device that causes a computer to function as execution restriction means for restricting the above. A receiving antenna determining means for determining which radio wave signal from the mobile phone is received at a stronger level of the first antenna and the second antenna closer to the driver's seat than the first antenna; and
Single call restriction for transmitting a radio wave signal for restricting a single call with respect to an incoming call of the mobile phone based on the fact that the reception antenna determination means determines that the second antenna has received at a stronger level As a means, a program for a radio wave communication apparatus that causes a computer to function.

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