JPH0724824Y2 - Vehicle receiver - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a radio or television receiver suitable for a vehicle traveling a long distance. More specifically, it relates to a receiving device for a vehicle that travels in a plurality of broadcasting areas.

[Prior Art] When traveling a long distance while listening to a broadcast of a specific broadcasting station, it is often experienced that if the user deviates from the audible area of the broadcasting station, reception becomes impossible.

Conventionally, when continuously enjoying the same content while traveling for a long distance, the crew member selects the broadcasting station that is broadcasting the same content as the one he / she has listened to until now, or at the planned traveling location. Preset some broadcasting stations that are expected to broadcast the same content, and manually select the broadcasting station when reaching the hearing loss area, or equip the vehicle with two tuners in advance, The second tuner is set to receive only the radio waves of the broadcasting station that is expected to be broadcasting the same as the broadcasting station selected by the first tuner in the next traveling area.

[Problems to be Solved by the Invention] However, in all of the above conventional channel selection methods, an occupant needs to manually operate each time, which is a troublesome problem.

An object of the present invention is to provide a vehicular receiving apparatus capable of automatically listening or watching a long-distance traveling by a simple operation of designating a frequency of a desired broadcasting station without interrupting the broadcasting content. To provide.

[Means for Solving the Problems] In order to achieve the above object, the receiving device of the present invention is
As shown in the figure, a navigation device that displays the current traveling position and vehicle azimuth by calculating the azimuth signal transmitted from the azimuth sensor 14 and the traveling distance signal transmitted from the vehicle speed sensor 15.
10, a first tuner 12 for selecting only radio waves of the frequency of the first broadcasting station, a second tuner 13 for selecting only radio waves of the frequency of the second broadcasting station, and a frequency for inputting a designated frequency of the desired broadcasting station. And input means 21. The output of the controller 11 is connected to the inputs of the first and second tuners. The controller 11 has a group of broadcasting stations forming a network from a large number of broadcasting stations in a wide area, a first memory 18 for storing those frequencies, and a second memory 19 for storing a designated frequency inputted by the input means 21. . Further, the controller 11 reads out a designated frequency from the second memory 19, reads out a group of broadcasting stations forming a network relating to the broadcasting station of the designated frequency from the first memory 18, and selects the navigation device 10 in the group of read broadcasting stations. The channel selection means for reading the frequencies of the two broadcasting stations close to the current traveling position displayed by and the frequency setting means for respectively setting the frequencies of the two broadcasting stations as the frequencies of the first and second broadcasting stations. The output of the first and second tuners 12 and 13 is connected to a tuner selecting means 23 which compares the output levels of the tuners 12 and 13 and sends out an output signal of the tuner of a high level. A means 24 for converting the output signal into an audio signal and / or an image signal is connected.

[Operation] When the designated frequency is input by the frequency input means 21, the first
From the memory 18, the broadcasting station group of the network relating to the broadcasting station of that frequency is read, and two broadcasting stations close to the current traveling position displayed by the navigation device 10 are selected from the broadcasting station group, and the two frequencies are selected. Are assigned and set as the frequencies of the first and second broadcasting stations of the first and second tuners 12 and 13, respectively. When the first and second tuners 12 and 13 receive the radio waves of the respectively assigned frequencies, the tuner selecting means 23 compares the output levels of the first and second tuners 12 and 13 and outputs a high level tuner output signal. Is sent to the conversion means 24 and converted into an audio signal and / or an image signal.

[Embodiment] Next, an embodiment of the present invention will be described in detail with reference to the drawings.

As shown in FIG. 1, the vehicle radio receiver includes a navigation device 10, a controller 11, and tuners 12 and 13. Each detection output of the geomagnetic direction sensor 14 and the vehicle speed sensor 15 is connected to the navigation device 10. The navigation device 10 calculates the azimuth signal transmitted from the azimuth sensor 14 and the traveling distance signal transmitted from the vehicle speed sensor 15 to display the current traveling position of the vehicle and its azimuth. This device 10
The output of is connected to the CPU 17 via the input interface 16 of the controller 11 which constitutes the tuning means and the frequency setting means. The controller 11 is composed of a microcomputer.

A first memory 18 and a second memory 19 are connected to the CPU 17. Further, frequency input means 21 for inputting a designated frequency of a desired broadcasting station is connected to the CPU 17 via the interface 16. The first memory 18 stores a large number of broadcasting stations in a wide area, for example, a broadcasting station group forming a network from among broadcasting stations transmitting radio waves to an area along the Tokaido and their frequencies. The second memory 19 stores the designated frequency input from the input means 21.

1st tuner 1 to CPU17 via output interface 22
2 and the second tuner 13 are connected. The first tuner 12 has a first antenna 12a and selects only radio waves of the frequency of the first broadcasting station. The second tuner 13 has a second antenna 13a and selects only radio waves of the frequency of the second broadcasting station. The outputs of the tuners 12 and 13 are connected to the audio signal converting means 24 via the tuner selecting means 23.

Next, the operation of the receiving apparatus having such a configuration will be described based on the flowchart shown in FIG.

The case where the vehicle departs from Tokyo and heads for the destination of Osaka will be described as an example. The crew has a designated frequency of A ₁ broadcasting station in the Kanto region
When f ₀ is input from the input means 21, this frequency f ₀ is stored in the second memory 19. The controller 11 searches the first memory 18 for the same frequency as this frequency f ₀ . This memory
If there is no frequency corresponding to 18, the process ends.

When the controller 11 retrieves a frequency corresponding to the frequency f ₀ from the memory 18 and reads it, a group of broadcasting stations forming a network relating to the broadcasting station of the frequency f ₀ , for example, A ₁ broadcasting station in the Tokyo region,
Memory for A ₂ stations in Tokai region and A ₃ stations in Kansai region 18
From reading reads the frequency f ₂ of the two A ₁ of the broadcast station frequency f ₁ and A ₂ broadcasting station close to the current travel position displaying the navigation device 10 in the read-out broadcast station group.

The controller 11 then assigns these frequencies f ₁ and f ₂ to the first
The frequency of the first broadcasting station of the tuner 12 and the frequency of the second broadcasting station of the second tuner 13 are assigned and set. The first tuner 12 receives a radio wave of frequency f ₁ by the antenna 12a, and the second tuner 13 receives a radio wave of frequency f ₂ by the antenna 13a. First to receive radio waves of these frequencies
The output levels of the tuner 12 and the second tuner 13 are compared by the tuner selecting means 23. When traveling in the Kanto region, since the radio wave of the A ₁ broadcasting station of frequency f ₁ is strong, the output signal of the first tuner 12 is selected, converted into an audio signal by the conversion means 24, and output from a speaker (not shown). Is output.

When the vehicle moves to the Tokai region, the radio wave of the A ₂ broadcasting station with the frequency f ₂ becomes strong, so that the conversion means 24 selects the output signal of the second tuner 13, and this output signal is not shown in the figure like the above. It is output from the speaker. As a result, the receiving device continues to receive the same broadcast in the Tokai region, which is the same as that received in the Kanto region, without the passenger operating it.

When the vehicle approaches the Kansai region from the Tokai region, the controller
11 is the frequency f ₂ of the A ₂ broadcasting station in the Tokai region and the frequency f ₃ of the A ₃ broadcasting station in the Kansai region as the frequency of the first broadcasting station of the first tuner 12 and the frequency of the second broadcasting station of the second tuner 13. Assign and set each. The first tuner 12 receives a radio wave of frequency f ₂ by the antenna 12a, and the second tuner 13 receives the radio wave.
The radio wave of frequency f ₃ is received by 13a. Thereafter, the output signal of the high level tuner is converted into an audio signal as described above.

In the above example, the receiving device is for radio, but it may be for television.

The orientation sensor is a geomagnetic orientation sensor, but a global positioning system (GP)
S) etc. may be used.

[Advantages of the Invention] As described above, according to the present invention, by simply initializing the frequency of a desired broadcasting station, when the broadcasting area of the broadcasting station is exceeded, the broadcasting stations of the series can be automatically received. , You can enjoy broadcasting continuously without getting into troublesome tuning operation while riding.

[Brief description of drawings]

FIG. 1 is a block diagram of a receiver according to the embodiment of the present invention. FIG. 2 is a flowchart of the operation. 10: Navigation device, 11: Controller (tuning means,
Frequency setting means), 12: first tuner, 13: second tuner, 14: direction sensor, 15: vehicle speed sensor, 18: first memory, 1
9: second memory, 21: frequency input means, 23: tuner selection means, 24: audio signal conversion means.

Claims (1)

[Scope of utility model registration request] 1. A navigation device for displaying a current traveling position and a vehicle azimuth by calculating an azimuth signal sent from an azimuth sensor and a travel distance signal sent from a vehicle speed sensor, and only a radio wave having a frequency of a first broadcasting station. , A second tuner for selecting only radio waves of a frequency of the second broadcasting station, a frequency input means for inputting a designated frequency of a desired broadcasting station, and a network from a large number of broadcasting stations in a wide area. And a first memory for storing the frequencies of the broadcasting stations forming the group and a second memory for storing the designated frequency input from the input means.
And a memory for reading a designated frequency from the second memory, reading a group of broadcasting stations forming a network of broadcasting stations having the designated frequency from the first memory, and executing the navigation in the group of read broadcasting stations. Channel selecting means for reading the frequencies of two broadcasting stations near the current traveling position displayed by the device; and frequency setting means for respectively setting the frequencies of the two broadcasting stations as the frequencies of the first and second broadcasting stations. A tuner selection means for comparing the output levels of the first and second tuners and sending out a high level tuner output signal; and a tuner selection means connected to the tuner selection means for converting the output signal into an audio signal and / or an image signal. A receiving device for a vehicle, which is provided with a converting means.