JPH06276056A - Broadcast reception system with navigation function - Google Patents

Abstract

PURPOSE:To automatically set the frequency of a radio wave sent from the broadcasting station in the broadcasting area where a vehicle is present when a radio set is mounted on the vehicle and to tune the tuner to the frequency of a radio wave sent from a broadcasting station in another broadcasting area and automatically set the frequency when the vehicle moves into the latter area. CONSTITUTION:When the power source of a CPU 9 is turned ON at the time of the mounting of the vehicle use radio set 1 on the vehicle, the CPU 9 of the vehicle use radio set 1 reads the frequency of the radio wave, sent from the broadcasting station in the area (broadcasting area) where a driver's own vehicle is located out of a broadcasting station frequency memory 9b and sets it in a presettable memory area 9a based on the position information of the driver's own vehicle transferred from a position detection part 13 of navigation equipment 2.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a broadcast receiving system with a navigation function, and more particularly to a broadcast receiving system with a navigation function in which a vehicle radio and a navigation device are integrated.

[0002]

2. Description of the Related Art Conventionally, a vehicle radio has an antenna 50, a tuner 51, a volume 52,
Mute circuit 53, power amplifier 54, speaker 55,
A CPU (central processing unit) 56 having a preset memory area 56a, an operation key block 57, and the like have a basic configuration. In the vehicle radio 58, when the radio wave transmitted from the broadcasting station is received by the antenna 50, the tuner 51 is received.
Detects and amplifies the received signal and outputs it to the power amplifier 54 via the volume 52 and the mute circuit 53. The power amplifier 54 outputs the amplified electric signal to the speaker 55. As a result, the speaker 55 outputs the electric signal. It is designed to be converted into an audio signal and output.

The CPU 56 is responsive to the key information input by the occupant of the vehicle for a predetermined operation of the operation key block 57.
The tuning frequency of the tuner 51 is adjusted, the level of the volume 52 is adjusted, the mute circuit 53 and the power amplifier 54 are turned on / off, and a station detector signal is taken from the tuner 51 for adjusting the tuning frequency of the tuner 51. Further, in the preset memory area 56a of the CPU 56, data preset to a predetermined frequency when the power of the CPU 56 is turned on (when the radio is attached to the vehicle) is stored, and the operation key block 57 of the vehicle occupant after the power is turned on is stored. It is possible to set an arbitrary frequency by a predetermined operation.

On the other hand, a general navigation device mounted on a vehicle has a position detector 6 as shown in FIG. 5, for example.
0, the guiding unit 61, the map data unit 62, the human interface unit 63, and the like have a basic configuration. In the navigation device 64, the position detection unit 60 detects the own vehicle position based on the outputs from various sensors such as a direction sensor and a wheel speed sensor, and the road data stored in the CD-ROM or the like of the map data unit 62. After performing a correction process (map matching) by collating with the vehicle position and the vehicle position, when the vehicle position information is output to the guidance unit 61, the guidance unit 61 calculates the direction and distance of the vehicle to the traveling destination. At the same time, the travel route information to the destination based on the road data of the map data unit 62 is output to the human interface unit 63. The human interface unit 63 inputs the road data from the map data unit 62 and displays the road data on the display unit, and also displays the vehicle position and the traveling route to the destination on the display unit and provides voice guidance. In this case, the scale of the map displayed on the display unit can be enlarged / reduced and the setting of the destination can be changed by a predetermined operation of the vehicle occupant.

[0005]

However, the above-mentioned prior art has the following problems. When the above-mentioned vehicle radio is newly installed at the radio installation location of the vehicle instrument panel, the frequency preset in the preset memory area 56a of the CPU 56 of the vehicle radio and the area where the vehicle is (the broadcasting area) Since the frequency of the radio wave transmitted from the broadcasting station that can be received by the vehicle does not necessarily match, the vehicle occupant must reset the frequency of the radio wave transmitted from the broadcasting station that can be received in the area (the broadcasting area). There is a problem that the frequency setting operation is complicated. In addition, after the vehicle occupant sets the frequency of the radio wave transmitted from the broadcasting station receivable in the area (the broadcasting area) in the preset memory area 56a of the CPU 56 of the vehicle radio, the vehicle occupant is separated from the area. When moving to a different area (separate broadcasting area), the frequency of the radio waves transmitted from the receivable broadcasting stations is different for each area (each broadcasting area). There was a problem that I could not listen to the broadcast.

[0006]

It is an object of the present invention to improve the above disadvantages of the prior art, and in particular, to automatically set the frequency of the radio wave transmitted from the broadcasting station in the broadcasting area where the vehicle is located when the radio is mounted on the vehicle. Also, when the vehicle moves to another broadcasting area, it is possible to tune the tuner to the frequency of the radio wave transmitted from the broadcasting station in another broadcasting area and set it automatically with the navigation function. The purpose is to provide the system.

[0007]

According to the present invention of claim 1, a tuner section into which radio waves of a broadcasting station received by a vehicle antenna are input, and frequencies of radio waves transmitted from a plurality of broadcasting stations are stored in advance. A vehicle radio having a first storage unit, a second storage unit in which preset frequencies of radio waves transmitted from a predetermined broadcasting station are stored, and a control unit for controlling each unit, and the control of the vehicle radio. And a navigation device that is connected to a vehicle unit, detects the current position of the vehicle, and outputs vehicle current position information to the control unit, and the control unit of the vehicle radio controls the vehicle radio for the vehicle. When the power of the vehicle radio is turned on at the time of installation, from the broadcasting station in the broadcasting area where the vehicle is currently located, which corresponds to the vehicle current position information output from the navigation device, It reads the signal is the frequency of radio waves from the first storage unit, and the read transmission frequency is configured to be a function of the preset stored in the second storage unit. This is intended to achieve the above-mentioned object. According to the present invention of claim 2, a tuner section into which radio waves of a broadcast station received by a vehicle antenna are input, a first storage section in which frequencies of radio waves transmitted from a plurality of broadcast stations are stored in advance, and a predetermined broadcast. A vehicle radio having a second storage unit in which the frequency of radio waves transmitted from a station is preset and stored, and a control unit for controlling each unit, and a current radio of the vehicle connected to the control unit of the vehicle radio. A navigation device that detects a position and outputs vehicle current position information to the control unit is provided, and the control unit of the vehicle radio controls the vehicle based on the vehicle current position information output from the navigation device. It is determined whether the broadcast area that was located before the current vehicle position information output was moved to another broadcast area, and if it is determined that the broadcast area was moved to another broadcast area, It has a function of reading the frequency of the radio wave transmitted from the transmitting station from the first storage unit, tuning the tuner unit to the read transmission frequency, and preset storing the read transmission frequency in the second storage unit. It is configured. This allows
It is intended to achieve the above-mentioned purpose.

[0008]

According to the present invention of claim 1, when the power of the vehicle radio is turned on after the vehicle radio is attached to the vehicle, the control unit of the vehicle radio outputs the current vehicle position information from the navigation device. Then, the frequency corresponding to the current vehicle position information, that is, the frequency of the radio wave transmitted from the broadcasting station in the broadcasting area where the vehicle is located is read from the first storage unit, and then the transmission frequency is stored in the second storage unit. Store presets. As a result, when the radio is mounted on the vehicle, the complicated operation of resetting the frequency of the radio wave transmitted from the broadcasting station receivable in the broadcasting area where the vehicle is currently located in the frequency memory of the radio is carried out as in the conventional case. It can be resolved. According to the present invention of claim 2, when the vehicle current position information is output from the navigation device, the control unit of the vehicle radio outputs the vehicle before the vehicle current position information is output based on the vehicle current position information. It is determined whether or not the broadcast area in which it was located has moved to another broadcast area, and if it is determined that the broadcast area has moved, the frequency of the radio wave transmitted from the broadcast station in the other broadcast area is read from the first storage unit. After that, the tuner unit is tuned to the read transmission frequency, and the read transmission frequency is preset and stored in the second storage unit. As a result, it is possible to listen to a radio broadcast having the same content and strong radio waves transmitted from a broadcast station (same net station) in another broadcast area. Therefore, it is possible to solve the problem that a vehicle occupant who is listening to a radio broadcast in the broadcast area cannot listen to the radio broadcast having the same content in another broadcast area as the vehicle moves, as in the conventional case.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment to which the broadcast receiving system with navigation function of the present invention is applied will be described below with reference to the drawings.

FIG. 1 is a block diagram showing the structure of a broadcast receiving system with a navigation function according to the present embodiment. The broadcast receiving system with a navigation function is a vehicle radio 1
And a navigation device 2 connected to the vehicle radio 1. In the broadcast receiving system with navigation function of the present embodiment, the vehicle radio 1
However, based on the vehicle location information transferred from the navigation device 2, the area where the vehicle is located (broadcast area)
The feature is that the frequency of the radio wave transmitted from the broadcasting station is automatically set.

The vehicle radio 1 includes an antenna 3 for receiving radio waves transmitted from a broadcasting station, a tuner 4 for amplifying / detecting a received signal from the antenna 3, and a volume adjusting volume 5.
A mute circuit 6 having a muting function, a power amplifier 7 that amplifies the output of the mute circuit 6, a speaker 8 that converts an electric signal output from the power amplifier 7 into a sound signal, and a vehicle is positioned. CPU 10 having a preset memory area 9a in which frequencies of radio waves transmitted from broadcasting stations in the region (broadcasting area) in which it is stored and a broadcasting station frequency memory area 9b in which frequencies of radio waves transmitted from each broadcasting station are stored And an operation key block 11 having various operation keys.

The navigation device 2 detects the position of the vehicle on the basis of outputs from various sensors such as a azimuth sensor and a wheel speed sensor, and a CD-ROM of the map data unit 11 which stores road data. After performing the correction process (map matching) by collating the road data stored in etc. with the own vehicle position, the position detection unit 12 that outputs the own vehicle position information to the guide unit 13 described later, and the traveling of the vehicle The direction and distance to the destination are calculated, and the guide unit 13 that outputs the travel route information to the destination based on the road data of the map data unit 11 to a human interface unit 14 described later, and the road from the map data unit 11 A human interface unit 1 that inputs data and displays it on the display unit, and also displays the vehicle position and the traveling route to the destination on the display unit and provides voice guidance. And it has a configuration with a door.

The position detector 13 of the navigation device 2
Transmits the vehicle position information to the CPU 9 of the vehicle radio 1 when it receives a request command for vehicle position information transfer, which is periodically output from the CPU 9 of the vehicle radio 1, or periodically transmits the vehicle position information. The position information is transferred to the CPU 9 of the vehicle radio 1.

Next, FIG. 2 and FIG. 2 show the processing when the vehicle radio constituting the broadcast receiving system with the navigation function of this embodiment is attached to the vehicle (when the CPU power is on) and the periodic processing in the vehicle radio. It will be described based on 3.

"When a vehicle radio is attached to a vehicle (CP
U processing (when the power is turned on) "(Fig. 2) When the vehicle radio 1 is attached to the radio mounting portion of the vehicle instrument panel and the CPU 9 is powered on, the navigation device 2 is connected to the CPU 9 of the vehicle radio 1.
The vehicle position information is transferred from the position detecting unit 13 (step SA1). As a result, the CPU 9 of the vehicle radio 1
Reads from the broadcasting station frequency memory area 9b the frequency of the radio wave transmitted from the broadcasting station in the area (broadcasting area) in which the own vehicle is located corresponding to the own vehicle position information, and sets it in the preset memory area 9a (step SA2).

[Regular Radio Processing] (FIG. 3) When the CPU 9 of the vehicle radio 1 receives the vehicle position information from the position detection unit 13 of the navigation device 2 (step SB1), the vehicle position information is transmitted. Based on the above, it is determined whether or not the vehicle has moved from the area (the broadcasting area) to another area (the broadcasting area) (step SB2), and the vehicle is moved to another area (the broadcasting area). If it is determined that it has not moved, this processing ends. On the other hand, when the CPU 9 of the vehicle radio 1 determines that the vehicle has moved to another area (another broadcasting area), it determines whether or not the vehicle occupant is listening to the radio broadcast (step SB3). .

When the CPU 9 of the vehicle radio 1 determines that the vehicle occupant is listening to the radio broadcast, the CPU 9 of the vehicle radio transmits the frequency of the tuner 4 to a broadcasting station (in another area (another broadcasting area)) in which the vehicle has moved. While tuning to the frequency of the same net station (step SB4), the frequency of the broadcasting station (same net station) of another area (different broadcasting area) where the vehicle has moved is read from the broadcasting station frequency memory area 9b and preset. After setting in the memory area 9a (step SB5),
This process ends. On the other hand, the CPU 9 of the vehicle radio 1
When it is determined that the vehicle occupant is not listening to the radio broadcast, the process directly ends step SB5, and then the process ends.

In this case, the CPU 9 of the vehicle radio 1
In the process of step SB5, unlike the auto store system, the frequency of the radio wave transmitted from a broadcasting station with the same broadcast content and weak radio wave is not set in the preset memory area 9a.

As described above, according to this embodiment, when the vehicle radio 1 is newly installed in the vehicle, the area where the vehicle is located in the preset memory area 9a of the CPU 9 of the vehicle radio 1 ( Since the frequency of the radio wave transmitted from the broadcasting station in the broadcasting area) is automatically set, when the radio is newly installed in the vehicle as in the past, reception is performed in the area where the vehicle is located (broadcast area). It is possible to eliminate the complicated operation of resetting the frequency of the radio wave transmitted from a possible broadcasting station in the frequency memory of the radio.

Further, according to this embodiment, when the vehicle occupant is listening to the radio broadcast in the area (the broadcasting area), the vehicle is moved from the area (the broadcasting area) to another area (another broadcasting area). Area), the tuner 4 of the vehicular radio 1 is tuned to the frequency of the radio wave transmitted from the broadcasting station of another region (different broadcasting area), and the preset memory of the CPU 9 of the vehicular radio 1 is tuned. In order to automatically set the frequency of the radio wave transmitted from the broadcast station in another area (different broadcast area) to the area 9a, the signal is transmitted from the broadcast station (same net station) in another area (different broadcast area). It is possible to listen to radio broadcasts having the same content and strong radio waves. Therefore, as in the past, the vehicle occupant who was listening to the radio broadcast in the area (the broadcast area) can listen to the radio broadcast of the same content in another area (the different broadcast area) where the vehicle was moved. The problem of disappearing can be solved.

[0021]

As described above, according to the broadcast receiving system with navigation function of the present invention, the effects of the following respective items can be obtained. When the power of the vehicle radio is turned on when the vehicle radio is attached to the vehicle, the vehicle corresponding to the vehicle current position information output from the navigation device is transmitted from the broadcasting station in the broadcasting area in which the vehicle is currently located. Since the frequency of the radio wave is read from the first storage unit and the read transmission frequency is preset stored in the second storage unit, it can be received in the broadcasting area in which the vehicle is currently located when the radio is attached to the vehicle as in the past. The frequency of the radio wave transmitted from the broadcasting station is
It is possible to eliminate the complicated operation of resetting the radio frequency memory. Based on the current vehicle position information output from the navigation device, it is determined whether the vehicle has moved from the broadcast area that was located before the current vehicle position information was output to another broadcast area, and the vehicle has moved to another broadcast area. If it is determined that
Since the frequency of the radio wave transmitted from a broadcasting station in another broadcast area is read from the first storage unit, the tuner unit is tuned to the read transmission frequency, and the read transmission frequency is preset and stored in the second storage unit. It is possible to listen to a radio broadcast having the same content and strong radio waves transmitted from a broadcast station (same net station) in the broadcast area of the above, and as a result, the radio broadcast is listened to in the broadcast area as in the past. It is possible to solve the problem that a vehicle occupant cannot listen to the same radio broadcast in another broadcasting area as the vehicle moves.

[Brief description of drawings]

FIG. 1 is a block diagram showing a configuration of a broadcast receiving system with a navigation function according to an embodiment of the present invention.

FIG. 2 is a flowchart showing a process when the radio according to the present embodiment is attached to a vehicle (when the CPU power is on).

FIG. 3 is a flow chart showing a periodic radio process in the present embodiment.

FIG. 4 is a block diagram showing a configuration of a conventional vehicle radio.

FIG. 5 is a block diagram showing a configuration of a conventional navigation device.

[Explanation of symbols]

 1 Vehicle Radio 2 Navigation Device 3 Antenna 4 Tuner as Tuner Section 5 Volume 6 Mute Circuit 7 Power Amplifier 8 Speaker 9 CPU as Control Section 9a Preset Memory Area as Second Storage Section 9b Broadcast Station as First Storage Section Frequency memory area 10 Operation key block 11 Map data section 12 Position detection section 13 Guidance section 14 Human interface section

Claims (4)

[Claims] 1. A tuner unit into which radio waves of a broadcast station received by a vehicle antenna are input, a first storage unit in which frequencies of radio waves transmitted from a plurality of broadcast stations are stored in advance, and a radio wave is transmitted from a predetermined broadcast station. A vehicle radio having a second storage unit in which the frequency of the radio wave to be preset is stored, and a control unit for controlling each unit, and connected to the control unit of the vehicle radio to detect the current position of the vehicle And a navigation device that outputs vehicle current position information to the control unit, and the control unit of the vehicle radio is powered on when the vehicle radio is attached to the vehicle. In this case, the frequency of the radio wave transmitted from the broadcasting station in the broadcasting area in which the vehicle is currently located, which corresponds to the vehicle current position information output from the navigation device, is set to Read from parts, the broadcast receiving system with a navigation function, characterized by comprising a function to preset stored in the second storage unit the transmission frequency read the. 2. A tuner unit into which radio waves of a broadcasting station received by a vehicle antenna are input, a first storage unit in which frequencies of radio waves transmitted from a plurality of broadcasting stations are stored in advance, and a transmission from a predetermined broadcasting station. A vehicle radio having a second storage unit in which the frequency of the radio wave to be preset is stored, and a control unit for controlling each unit, and connected to the control unit of the vehicle radio to detect the current position of the vehicle And a navigation device that outputs vehicle current position information to the control unit, wherein the control unit of the vehicle radio controls the vehicle current position based on the vehicle current position information output from the navigation device. If it is determined whether the broadcast area that was located before the information output was moved to another broadcast area, and if it is determined that the broadcast area was moved to another broadcast area, the broadcast station in the other broadcast area A frequency of radio waves transmitted from the first storage unit is read from the first storage unit; the tuner unit is tuned to the read transmission frequency; and the read transmission frequency is preset and stored in the second storage unit. A distinctive broadcast receiving system with navigation function. 3. The control unit of the vehicle radio has a function of periodically outputting a vehicle current position information request signal to the navigation device, and the navigation device periodically outputs from the control unit of the vehicle radio. The broadcast receiving system with a navigation function according to claim 1 or 2, further comprising a function of outputting the vehicle current position information to the control unit based on a vehicle current position information request signal that is output in a static manner. 4. The navigation device has a function of periodically outputting vehicle current position information to the control unit of the vehicle radio.
The broadcast receiving system with the navigation function described.