JP2011057148A - Onboard electronic equipment and program - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide onboard electronic equipment with good operability allowing a driver to easily obtain information during driving. <P>SOLUTION: When a set value for a highway radio automatic reception stored in a nonvolatile memory of a control part 18 is set to "an automatic reception" in a highway radio automatic reception processing, the control part 18 decides whether or not a present position acquired from a GPS receiver 8 is in a reception area stored in a data base 19. When the present position is not in the reception area, the highway radio automatic reception processing is finished. When the present position is in the reception area, a reception frequency of a highway radio in the reception area is acquired from the data base 19, the acquired reception frequency is instructed to a radio receiver 21. The radio receiver 21 receives radio broadcasting of a set frequency, performs an A/D conversion of the received sound and delivers the sound as sound data to the control part 18. The control part 18 performs a D/A conversion of the sound data received from the radio receiver 21 and outputs the radio sound from a speaker 20. <P>COPYRIGHT: (C)2011,JPO&amp;INPIT

Description

  The present invention relates to an in-vehicle electronic device that receives a broadcast.

  In recent years, many speed measuring devices for measuring the speed of an automobile have been installed around the road. As an example of the speed measurement device, there is a device that emits a microwave of a predetermined frequency band toward a vehicle, receives the reflected wave, and measures the traveling speed of the vehicle. In order to detect the presence of such a velocity measuring device, a microwave detector configured to detect a microwave emitted from the velocity measuring device and output an alarm is conventionally known. However, depending on the installation location of the speed measurement device, road conditions, and other surrounding environments, conventional microwave detectors can be detected from a relatively long distance, and can be detected only after a relatively close distance. . Also, some velocity measuring devices cannot be detected by conventional microwave detectors. As an example, there is a type in which a loop-shaped coil is embedded in the ground and a vehicle speed is determined while detecting the vehicle passing over the coil, as called a loop type. Others detect the speed of the vehicle using light other than microwaves.

  Therefore, when the current position acquired by GPS (Global Positioning System) etc. approaches the stored installation position (when a predetermined approach relationship is established), the installation position information of the speed measuring device is stored in advance. There is an in-vehicle electronic device such as a radar detector that issues a warning regardless of whether or not microwaves are detected (Patent Document 1). For example, when the current position is within 1000 m from the installation position of the speed measurement device, the first warning is given, and when the current position is within 500 m from the installation position of the speed measurement device. Do a second warning, etc.

  As an additional function in such an in-vehicle electronic device, a radio wave reception area that can be received in a certain area such as a highway radio is stored in advance, and the current position obtained by GPS enters the reception area. An area that can receive radio waves such as predetermined broadcasts by notifying the voice that “It is a highway radio reception area” when a predetermined approach relationship is reached, and displaying that fact on the LCD screen, etc. There is something to inform the driver that it is. The driver can obtain information by operating a receiver of a broadcast radio wave such as a car radio by using this voice and listening to or watching a predetermined broadcast.

JP 2008-64588 A

  However, when such notification is given, it may be dangerous for the driver to operate a radio wave receiver such as a radio while driving. Therefore, when such notification is given, it is necessary to stop the vehicle at an appropriate place and operate the receiver or the like in order to receive a predetermined broadcast. However, for example, stopping on a highway is prohibited, and it may be difficult to operate the receiver. In addition, for example, the driver may ask the passenger to operate the receiver so as to receive the broadcast, but the passenger may not know the operation method of the receiver in the vehicle. is there. There may be no passengers in the first place. For this reason, there are cases where information cannot be obtained even if the user wants to obtain information by receiving a broadcast or the like.

  Also, because the vehicle is running, it may have already left the reception area when it has been switched to a state where it can receive broadcasts, or it may have reached a position close to the end point of the broadcast reception area. In some cases, necessary information could not be obtained.

  Therefore, the present invention has been made to solve such a problem, and by receiving radio waves that broadcast predetermined information such as traffic information that can be received in a predetermined area, the driver can easily receive information during driving. It is an object of the present invention to provide an in-vehicle electronic device that can be easily used.

  In order to achieve the above-described object, the in-vehicle electronic device according to the present invention (1) receives a radio wave and receives information that is carried by the radio wave based on the received radio wave in a manner that can be perceived by a person. Means for storing information relating to the reception area of the radio wave, position detection means for detecting the current position, and the current position detected by the position detection means in the radio wave reception area stored in the storage means And a control means for controlling the receiving means to make the output when it enters.

  According to such a configuration, when entering the reception area, the radio wave is automatically received and information is output. Therefore, information can be acquired without operating a receiver installed in the vehicle. Also, since it is output when it enters the reception area, it is already out of the reception area when switching to a state where radio waves can be received, or a position close to the end point of the broadcast reception area. It can solve the problem of ending up. Therefore, it is possible to realize an in-vehicle electronic device that is easy to use so that the driver can easily obtain information during driving.

  Examples of information carried by radio waves include voice, video, images, and various other information. Information can be digital or analog. For example, the received radio wave may be an AM radio broadcast radio wave (for example, a highway radio). The received radio wave may be a television broadcast (for example, one segment, full segment) or a data broadcast.

  (2) The control means performs a control to cause the reception means to end the output when the current position detected by the position detection means is out of the radio wave reception area stored in the storage means. It is good to.

  In this way, when the vehicle moves out of the reception area, the reception automatically ends. Therefore, when leaving the reception area, there is no need to perform an operation such as turning off the receiver installed in the vehicle. Therefore, an in-vehicle electronic device that is easy to use can be realized.

  (3) The control means may be configured to set whether to perform automatic reception by the receiving means based on an instruction input from a user and to control the output based on the setting.

  In this way, when automatic reception is not desired, automatic reception is not performed, and an in-vehicle electronic device that is easy to use can be realized.

(4) The reception means may be configured not to perform the output even within the reception area when the reception level of the received radio wave is a predetermined value or less.
In this way, radio waves cannot be received well, noise and the like are not generated, and usability is good.

  (5) The control unit stores a reception area that can be received by the reception unit and a frequency of a radio wave received by the reception unit, and the current position detected by the position detection unit is stored in the storage unit. It is preferable to perform a control for causing the receiving means to output the reception of the frequency of the radio wave associated with the receiving area when entering the receiving area stored in the means.

  In this way, it is possible to automatically receive radio waves having a frequency associated with the current position and output information. In this way, information can be obtained without performing tuning operations, so it is easy to use.

  (6) The current position detecting means detects the current position by GPS, and the control means stores a position related to a tunnel through which a radio wave receivable by the receiving means is transmitted, and the current position It may be configured to perform control to cause the receiving unit to perform the output when the current position detected by the detecting unit is in a predetermined approach relationship with the position related to the tunnel.

In this way, for example, when a radio broadcast is made in a tunnel, the radio broadcast can be automatically received. For example, position information before entering a tunnel in which radio broadcasting is performed may be stored, and control may be performed so that the radio broadcast is received when the position detected by GPS substantially matches the position of the tunnel. Also, the position information before entering the tunnel where radio broadcasting is made is stored, and after the position detected by GPS almost coincides with the tunnel, it entered the tunnel when the signal from GPS could not be detected It may be determined that the broadcast is received (output).
In this way, information can be easily obtained in the tunnel.

  (7) Provided with road type discrimination means for discriminating whether the running road is an expressway or a general road, and the control means determines that the running road is an expressway when the road type discrimination means However, it is preferable that the receiving unit control the output.

  In this way, for example, when traveling on a general road close to the expressway, there is no problem of outputting information about an unintended expressway. Therefore, an in-vehicle electronic device that is easy to use can be realized.

  (8) The receiving means outputs a sound, and when a predetermined alarm condition is satisfied, an alarm sound output means for outputting an alarm sound corresponding to the establishment of the alarm condition; and a sound by the reception means It may be configured to include an output control means for determining whether to output the alarm sound by the alarm sound output means or not according to the type of alarm based on the setting from the user. In this way, the user sets which of the alarm sound and the sound output by the receiving means is output as the sound for each type of alarm, and the sound is output according to the priority according to the setting.

  (9) It may be configured to include recording means for recording the output of the receiving means, and reproduction means for reproducing the output recorded by the recording means when a reproduction instruction is input from a user.

  In this way, if the user cannot perceive the received information, that is, if the sound cannot be heard if it is configured to output as sound like a radio, it will be output as video and sound like a television. Even if audio and / or video cannot be viewed with the configuration, it is possible to easily obtain information by reproducing and viewing later.

  (10) Provided with a kilopost position storage means for storing information on the position on the road and how many kiloposts the position on the road corresponds to, and storing the current position detected by the position detection means and the kilopost position storage means Based on the information on the position on the road and how many kiloposts the position on the road corresponds to, it may be configured to include a kilopost information output means for outputting how many kiloposts the current position corresponds to.

  When traveling by car, it is often desirable to obtain traffic information. In the traffic information, there is a case where a road name and how many kilometers post of the road of the road name are notified of traffic jams. However, for example, even if it is said that there is a traffic jam around 100 km post, there is a problem that it is difficult to know how many km post the current position is. According to the present invention, since how many kiloposts the current position is near is output, such a problem can be solved.

  (11) The receiving means is a radio receiver that outputs sound as a form that can be perceived by the person, and outputs character information by converting the sound output from the receiving means into character information and outputting it. A configuration including means may be employed.

  During traveling, for example, when noise is generated due to traveling, for example, noise may be generated, it may not be heard. According to the present invention, since the received radio broadcast is converted into character information and output, even if there is a point that the broadcast content cannot be heard, the content can be confirmed by looking at the character information.

  (12) In addition, it can implement | achieve as a program for making a computer implement | achieve the function as a control means in the electronic device in any one of (1)-(11).

  ADVANTAGE OF THE INVENTION According to this invention, the user-friendly vehicle-mounted electronic device and program which can obtain information easily during a driving | operation can be provided.

It is a figure which shows the structure of the radar detector which is preferable one Embodiment of this invention. It is a block diagram of a radar detector. It is a figure which shows the example of a display of a standby screen, a radar scope, and a GPS alarm. It is a figure which shows the example of a display of the alarm screen in a radar wave alarm function. It is a figure which shows the example of a display of a highway radio automatic reception setting screen. It is a figure which shows the example of a display of a kilopost display.

  1 and 2 show a configuration of a radar detector which is a preferred embodiment as an in-vehicle electronic device of the present invention. The radar detector is usually mounted on the dashboard. As shown in FIG. 1, this radar detector has a solar panel 2 and a switch unit 3 arranged on the upper surface of the case body 1, and the front side of the case body 1 (the side arranged on the front side of the vehicle (the windshield side)). A microwave receiver 4 for detecting microwaves in a frequency band emitted by the speed measuring device is disposed inside, and a display unit 5 and an alarm lamp are provided on the rear side of the case body 1 (the side disposed on the rear side of the vehicle (user side)). 6, an infrared communication device 7, and a remote control receiver 16 are arranged. In addition, a GPS receiver 8 and a radio receiver 21 are arranged inside the upper surface side of the case body 1. Further, an adapter jack 9 is disposed on one side surface of the case body 1, and a power switch 10 and a DC jack (not shown) are disposed on the other side surface. A speaker 20 is also built in the case body 1. In the present embodiment, the display unit 5 is a 2.4 inch small liquid crystal display, and the height H on the rear side of the case body 1 on which the display unit 5 is mounted is set to be higher than the height H0 of other parts. Yes.

  As shown in FIG. 2, the infrared communication device 7 transmits and receives data to and from a communication device incorporating an infrared communication device such as a mobile phone 12. The adapter jack 9 is a terminal for connecting the memory card reader 13. By connecting the memory card reader 13 to the adapter jack 9, data stored in the memory card 14 attached to the memory card reader 13 can be taken in. More specifically, the data stored in the memory card 14 includes update information such as information on a new target (position information including longitude and latitude, type information, etc.), and the update information passes through the control unit 18. Thus, the data is stored (downloaded) in the database 19 built in the apparatus, and the data is updated. The function of the memory card reader 13 may be configured to be built in the main body case 1.

  The database 19 is a nonvolatile memory (for example, EEPROM) in the microcomputer of the control unit 18 or externally attached to the microcomputer. In the database 19, information related to a certain target is registered at the time of shipment, and data and the like regarding the target added after that can be updated as described above. Data update can also be performed via the infrared communication device 7.

  The DC jack is for connecting a cigar plug cord (not shown), and is connected to a cigar socket of the vehicle via the cigar plug cord so that power can be supplied. The wireless receiver 15 receives incoming radio waves having a predetermined frequency. The remote control receiver 16 performs data communication with a remote control (portable device: handset) 17 by infrared rays and performs various settings for the device. The switch unit 3 is also connected to the control unit 18 (not shown) so that the same setting as the remote controller 17 can be performed. The remote controller 17 includes a play button, a standby switching button, a setting button, a selection button, a cancel button, an enter button, and up / down / left / right cross buttons.

  The radio receiver 21 is a receiver that receives AM radio, and is connected to a USB port provided in the control unit 18. The radio receiver 21 has a function of receiving an instruction of a reception frequency from the control unit 18, receiving a radio broadcast of the frequency, A / D converting the received audio, and sending the received audio to the control unit 18 as audio data. The control unit 18 D / A converts the audio data received from the radio receiver 21 and outputs it from the speaker 20, or compresses the audio data into the microcomputer of the control unit 18 or a non-volatile memory externally attached to the microcomputer. It has a function of recording, decompressing the recorded compressed audio data, D / A converting and outputting from the speaker 20. The configuration for realizing these functions corresponds to the receiving means and the recording means in this embodiment. The radio receiver 21 has a function of outputting the AM radio broadcast reception level (electric field strength value) to the control unit 18.

  The control unit 18 includes a microcomputer including a CPU, a ROM, a RAM, a nonvolatile memory, an I / O, and the like. The various input devices (the GPS receiver 8, the microwave receiver 4, the wireless receiver 15, A predetermined process is executed based on information input from the remote control receiver 16, the memory card reader 13, the infrared communication device 7, and the radio receiver 21), and the output device (display unit 5, alarm lamp 6, speaker 20) is used. Then, a predetermined alarm / message is output. Note that these basic configurations can be basically the same as the conventional ones.

  The functions of the radar detector of the present embodiment are realized by being stored on the EEPROM of the control unit 18 as a program executed by the computer included in the control unit 18 and executed by the computer included in the control unit 18.

  Functions realized by the computer by the program of the control unit 18 include a standby screen display function, a radar scope display function, a GPS alarm function, a radar wave alarm function, a wireless alarm function, and the like.

  The standby screen display function is a function for displaying the speed, latitude, longitude, and altitude of the host vehicle detected by the GPS receiver 8, as shown in FIG. As shown in FIG. 3 (b), the radar scope display function is a position where a target within a predetermined range (for example, within a range of about 1 km) from the current position detected by the GPS receiver 8 is stored in the database 19. This is a function of searching based on information and displaying the relative positional relationship between the vehicle position and the position of the target on the display unit 5. In FIG. 3B, “W” on the left side indicates the west, “E” on the right side indicates the east, and “N” on the upper side indicates the north direction, and the horizontal line connecting “W” and “E” and “N” The icon at the intersection of the vertical line extending downward from "" indicates the vehicle position. Icons having characters such as “L”, “RD”, “P”, and “N” indicate the type and position of the target. When pressing of a standby switching button provided on the remote controller 17 is detected during execution of the standby screen display function as shown in FIG. 3A, the radar scope display function is switched to as shown in FIG. Further, when pressing of the standby switch button provided on the remote controller 17 is detected during execution of the radar scope display function, processing for switching to the standby screen display function is performed.

  The control unit 18 performs a GPS alarm function, a radar wave alarm function, a radio alarm function, a fuel consumption display function, and a traffic rule notification according to an event that occurs during execution of the standby screen display function or the radar scope display function. The process which implement | achieves each function of these is performed.

  The GPS alarm function obtains the distance between both of the latitude and longitude of the target stored in the database 19 and the latitude and longitude of the current position detected by the GPS receiver 8 during execution of the standby screen display function or the radar scope display function. When the calculated distance is a predetermined distance (for example, within 500 m), this is displayed on the display unit 5 and a sound indicating that is output from the speaker 20. For example, during the execution of the standby screen display function of FIG. 3A or the radar scope function of FIG. 3B, the target “L” (indicating a loop coil radar) and the vehicle position at the top in the figure As shown in FIG. 3C, the schematic diagram or the photograph data of the target loop coil is read from the database 19 and displayed on the display unit 5 as shown in FIG. The stored voice data is read out and an approach notification is output from the speaker 20 to output a voice saying “500m ahead, loop coil”. During sound output, the alarm lamp 6 is turned on.

  These targets include radar, speed limit switching points, control areas, inspection areas, parking monitoring areas, N systems, traffic monitoring systems, intersection monitoring points, signal ignore suppression systems, police stations, accident-prone areas, and on-vehicle targets High-frequency area, rapid / continuous curve (highway), branch / merge point (highway), ETC lane advance guidance (highway), service area (highway), parking area (highway), highway oasis (highway) , Smart interchange (highway), PA / SA petrol station (highway), tunnel (highway), highway radio reception area (highway), prefectural border notice, roadside station, viewpoint parking, etc. Type information of target, latitude / longitude information indicating its position, and schematic diagram or photo data displayed on display unit 5 Stored in the database 19 in association with the voice data.

  The radar wave warning function is used when the microwave receiver 4 detects a signal corresponding to a microwave in a frequency band emitted from a velocity measuring device (mobile radar or the like (hereinafter simply referred to as “radar”)). This is an alarm function for displaying an alarm screen on the display unit 5 and outputting an alarm sound from the speaker 20. For example, when a microwave in a microwave frequency band emitted by a radar is detected by the microwave receiver 4, as shown in FIG. 4, a schematic diagram or a photograph of the radar stored in the database 19 is displayed on the display unit 5. While being displayed as an alarm screen, the voice data stored in the database 19 is read out and a voice “Radar. Speed attention” is output from the speaker 20. During sound output, the alarm lamp 6 is turned on.

The wireless alarm function is a function for issuing an alarm so that the wireless receiver 15 does not interfere with traveling or the like when a radio wave emitted by an emergency vehicle or the like is received. In the radio alarm function, enforcement radio, car radio, digital radio, special radio, police radio, police phone, police radio, wrecker radio, heli tele radio, fire helicopter radio, fire fight radio, emergency radio, expressway radio , Scan the frequency of the security radio, etc., and when the radio is received at the scanned frequency, a schematic diagram showing that the radio corresponding to the frequency stored in the database 19 for each radio type is received as an alarm screen While displaying on the display part 5, the audio | voice data memorize | stored for every radio | wireless classification in the database 19 are read, and the alarm sound which shows the radio | wireless classification from the speaker 20 is output. For example, when a control radio is received, a voice is output like “control radio. Speed attention”. During sound output, the alarm lamp 6 is turned on.
In addition to these functions, the radar detector of the present embodiment has a highway radio automatic reception function. Hereinafter, a method for realizing this function will be described.

  The radar detector according to the present embodiment stores, in the database 19, information on the reception area of the radio wave of the highway radio, the latitude / longitude information of the reception start position and reception end position of the highway radio, and the reception frequency of the highway radio in the reception area. Are stored in association with each other.

An automatic reception setting function is provided for setting whether or not highway radio automatic reception is performed. The control unit 18 sets whether or not automatic reception by the radio receiver 21 is performed based on an instruction input from the user, and performs reception control based on the setting. Specifically, when the control unit 18 detects pressing of the setting button of the remote controller 17 via the remote control receiver 16, the control unit 18 displays the highway radio automatic reception setting screen shown in FIG. 5 on the display unit 5. When the operation of the upper button or the lower button of the cross button of the remote controller 17 is detected, the focus frame 51 is moved in a direction corresponding to the pressed button between “automatically receive” and “not automatically receive”. When pressing of the selection button of the remote controller 17 is detected, the check state of the radio button on the left side of the item surrounded by the focus frame 51 is set to ◎, while the item not surrounded by the focus frame 51 Set the check state of the radio button on the left side of to ○. The contents of the items set as ◎ when the determination button of the remote controller 17 is pressed are stored in the nonvolatile memory of the control unit 18 as a setting value for automatic highway radio reception. For example, as shown in FIG. 5, when pressing of the determination button of the remote controller 17 is detected in a state where “automatic reception” is set to 受 信, “automatic reception” is set as a setting value for highway radio automatic reception And stored in the nonvolatile memory of the control unit 18.
And the control part 18 performs a highway radio automatic reception process by another process and a multitask.

  In the highway radio automatic reception process, first, it is determined whether or not the setting value of the highway radio automatic reception stored in the nonvolatile memory of the control unit 18 is “automatically receive”. If it is not “automatically received”, the highway radio automatic reception process is terminated. On the other hand, if the setting value of the highway radio automatic reception is “automatically received”, the control unit 18 obtains the current acquired from the GPS receiver 8. It is determined whether or not the position is within the reception area stored in the database 19. If it is not within the reception area, the highway radio automatic reception process is terminated. If it is within the reception area, the reception frequency of the highway radio in the reception area is acquired from the database 19, and the acquired reception is performed. The frequency is instructed (set) to the radio receiver 21. The radio receiver 21 receives a radio broadcast having a set frequency, A / D converts the received audio, and sends the audio as audio data to the control unit 18. The control unit 18 performs D / A conversion on the audio data received from the radio receiver 21 and outputs the radio sound from the speaker 20.

  Subsequently, the control unit 18 determines whether or not the current position acquired by the GPS receiver 8 has deviated from the reception area stored in the database 19. The acquisition of the audio data of the radio is stopped, and the output of the radio sound from the speaker 20 is stopped.

  Further, the control unit 18 acquires the reception level (electric field strength value) of AM radio broadcasting from the radio receiver 21, and the electric field strength value is higher than a reference value corresponding to a level value at which radio broadcasting sound cannot be heard. If it is smaller, acquisition of audio data from the radio receiver 21 is stopped, and output of radio sound from the speaker 20 is stopped. By doing so, the radio wave of the highway radio cannot be received well, and the problem that noise sound is output does not occur, and it is easy to use.

  Whether or not the current position acquired from the GPS receiver 8 is within the reception area stored in the database 19 depends on the latitude / longitude of the reception start position and the reception end position of any highway radio stored in the database 19. Depending on whether the latitude / longitude on the link connecting the latitude / longitude and the latitude / longitude of the current position have a predetermined degree of coincidence (for example, whether the latitude / longitude corresponds to a link having a width of 20 m). judge.

  According to such a configuration, since it is determined whether or not automatic reception is performed based on the setting of the user, when the user does not want automatic reception, the automatic reception does not occur and the usability is improved. A good radar detector can be realized.

  In the case of setting to perform automatic reception, the highway radio is automatically received when entering the reception area, and information is output from the speaker 20 by voice. In particular, since radio waves having a frequency associated with the current position are automatically received and information is output, information can be obtained without performing a tuning operation, which is convenient. In addition, information can be acquired without operating other radios installed in the vehicle, and highway radio sound is output when entering the highway radio reception area. Therefore, when switching to a state where the highway radio can be received by operating the radio of the vehicle is completed as in the past, the reception area has already exited or the end point of the highway radio reception area has been reached. It can solve the problem of being close. Therefore, it is possible to realize an in-vehicle electronic device that is easy to use so that the driver can easily obtain information during driving.

  Moreover, according to such a structure, when a vehicle moves and leaves a reception area, the reception will be complete | finished automatically. Therefore, when leaving the reception area, there is no need to perform an operation such as turning off the receiver installed in the vehicle. Therefore, an in-vehicle electronic device that is easy to use can be realized.

In the present embodiment, the highway radio is received, but other radio broadcasts may be received. Moreover, it is not limited to radio broadcasting, but may be television broadcasting (for example, one segment, full segment) or data broadcasting. The information received and output can be audio, video, images, and other various information.
Note that the following configuration may be further provided.

  If the location information before entering the tunnel where the highway radio can be received is stored in the database 19 and the current location information acquired from the GPS receiver 8 substantially matches the location of the tunnel (for example, before entering the tunnel) If the current position is located at a radius of 100 m from the position), the radio broadcast is received. Alternatively, the location information before entering the tunnel where the highway radio broadcast is made is stored in the database 19, and after the position detected by the GPS receiver 8 substantially coincides with the tunnel, the signal from the GPS cannot be detected. It may be determined that the user has entered the tunnel at the time, and the broadcast output may be started in the same manner as described above. In this way, for example, when a radio broadcast is made in a tunnel, the radio broadcast can be automatically received. In this way, information can be easily obtained in the tunnel.

  Further, the control unit 18 determines whether the traveling road is an expressway or a general road, and only when the traveling road is determined to be an expressway, performs automatic reception of the highway radio. Good. For example, highway road network data is stored in the database 19. The road network data of the expressway is data having a graph structure made up of nodes composed of position information on the expressway and links indicating the connection status of the nodes, and is used in general navigation devices. In the above-described processing, when the setting value of the highway radio automatic reception is “automatic reception”, the current position information detected by the GPS receiver 8 and the road network data in the database 19 are compared, When the current position is on the link, it is determined that the vehicle is on the highway. Note that whether or not the current position is on the road link may be determined by performing a so-called map matching process or the like. When it is determined that the current position is not on the highway, the highway radio automatic reception process is terminated. On the other hand, when it is determined that the current position is on the highway, the current position acquired from the GPS receiver 8 described above is stored in the database. Then, the process proceeds to a process of determining whether or not the reception area stored in 19 is reached.

  In this way, for example, there is no problem that the sound of the highway radio is output even though the vehicle is traveling on a general road close to the expressway. Therefore, an easy-to-use radar detector can be realized.

  Further, the database 19 stores the position information (node) on the expressway and information on how many kilometer posts the position on the expressway corresponds to, and during the processing of the standby screen display function and the radar scope display function. It is determined whether or not the current position is on the highway (on the above-mentioned link), and if it is determined that the current position is on the highway (on the above-mentioned link), acquired from the GPS receiver 8 The display unit 5 may display information on how many kiloposts the position on the highway corresponding to the position (node) on the highway stored in the database 19 that is closest to the current position. For example, as shown in FIG.

  When traveling by car, it is often desirable to obtain traffic information. In the traffic information, there is a case where a road name and how many kilometers post of the road of the road name are notified of traffic jams. However, for example, even if it is said that there is a traffic jam around 100 km post, there is a problem that it is difficult to know how many kiloposts the current position is, but if you do this, how many kiloposts the current position is Is displayed, so these problems can be solved.

  Furthermore, a screen for setting the priority between the sound output by the GPS alarm function, the radar wave alarm function, and the wireless alarm function and the sound output by the highway radio reception function is displayed and set from the remote controller 17. It is good to do. In the case of setting to give priority to audio output by the highway radio reception function, no audio alarm is given when audio output by the highway radio reception function is being performed during audio output processing in each function. On the other hand, if the audio output by the alarm function has priority over the audio output by the highway radio reception function, the radio audio output in the highway radio reception process is stopped and an audio alarm is output. . In this way, the user sets which of the alarm sound and the highway radio sound is output as a sound, and the sound is output according to the priority according to the setting. Note that the priority may be set for each type of target.

Furthermore, the control unit 18 externally attaches the audio data received from the radio receiver 21 to the microcomputer of the control unit 18 when the audio data received from the radio receiver 21 is D / A converted and output from the speaker 20. A process of compressing and recording in a non-volatile memory is performed. When the control unit 18 detects that the playback button of the remote controller 17 is pressed, the control unit 18 decompresses the compressed audio data recorded in the nonvolatile memory, performs D / A conversion, and outputs the result from the speaker 20.
In this way, even when the user misses the output sound of the highway radio, it can be heard again by pressing the playback button on the remote controller 17.

  Further, the control unit 18 may perform processing for converting the compressed audio data recorded in the nonvolatile memory into character information and displaying the character information on the display unit 5. While traveling, for example, noise may be generated due to traveling, etc., the highway radio sound may not be heard, but since the sound is converted into text information and output, there was a point that the broadcast content could not be heard Even so, the contents can be confirmed by looking at the character information.

  In this embodiment, the example of the radar detector has been described. However, the present invention can be implemented as a function of various in-vehicle electronic devices. For example, you may incorporate as a function of a navigation apparatus, a drive recorder, and a car audio.

DESCRIPTION OF SYMBOLS 1 Case main body 2 Solar panel 4 Microwave receiver 5 Display part 6 Lamp 7 Infrared communication device 8 GPS receiver 9 Adapter jack 10 Power switch 11 Mobile phone 12 Memory card reader 14 Memory card 15 Wireless receiver 16 Remote control receiver 17 Remote control 18 Control unit 19 Database 20 Speaker 21 Radio receiver 51 Frame frame 52 Kilometer post display

Claims (12)

Receiving means for receiving radio waves and outputting information carried by the radio waves based on the received radio waves in a manner that a person can perceive;
Storage means for storing information relating to the radio wave reception area;
Position detection means for detecting the current position;
And a control unit that controls the receiving unit to perform the output when the current position detected by the position detecting unit enters the reception area of the radio wave stored in the storage unit. Electronic equipment. The control means controls the receiving means to end the output when the current position detected by the position detecting means is out of the radio wave reception area stored in the storage means. The in-vehicle electronic device according to claim 1. 3. The control unit according to claim 1, wherein the control unit sets whether to perform automatic reception by the receiving unit based on an instruction input from a user, and controls the output based on the setting. Automotive electronic equipment. The said receiving means does not perform the said output even if it is in the said reception area, when the reception level of the said received electromagnetic wave is below a predetermined value. Automotive electronic equipment. The control unit stores a reception area that can be received by the reception unit and a frequency of a radio wave received by the reception unit in association with each other, and the current position detected by the position detection unit is stored in the storage unit. 5. The control according to claim 1, further comprising: controlling the reception unit to output the reception of the frequency of the radio wave associated with the reception area when entering the received reception area. The vehicle-mounted electronic device of description. The current position detection means detects the current position by GPS,
The control means stores a position relating to a tunnel from which radio waves receivable by the receiving means are transmitted, and the current position detected by the current position detecting means has a predetermined approach relationship with the position relating to the tunnel. The vehicle-mounted electronic device according to any one of claims 1 to 5, wherein the receiving unit performs control to cause the output to be performed. Provided with a road type discriminating means for discriminating whether a running road is an expressway or a general road,
7. The control unit according to claim 1, wherein the control unit performs control to cause the reception unit to output the output only when the road type determination unit determines that the road being traveled is an expressway. 7. The vehicle-mounted electronic device in any one. The receiving means outputs sound,
An alarm sound output means for outputting an alarm sound corresponding to the establishment of the alarm condition when a predetermined alarm condition is satisfied;
The output control means which determines according to the kind of alarm based on the setting from a user whether the sound by the said receiving means is output, or the said alarm sound by the said alarm sound output means is output is provided. The vehicle-mounted electronic device in any one of -7. Recording means for recording the output of the receiving means;
The vehicle-mounted electronic device according to claim 1, further comprising: a reproducing unit that reproduces the output recorded by the recording unit when a reproduction instruction is input from a user. It has a kilometer post position storage means for storing information on the position on the road and how many kiloposts the position on the road corresponds to,
Based on the current position detected by the position detection means, the position on the road stored in the kilopost position storage means, and the information on how many kiloposts the position on the road corresponds to, how many kiloposts the current position is. The vehicle-mounted electronic device according to any one of claims 1 to 9, further comprising a kilopost information output means for outputting whether or not it corresponds. The receiving means is a radio receiver, and performs output by sound as a mode perceivable by the person,
The vehicle-mounted electronic device according to any one of claims 1 to 10, further comprising character information output means for converting sound output from the receiving means into character information and outputting the character information.   The program for making a computer implement | achieve the function as a control means in the electronic device in any one of Claims 1-11.

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