KR100365190B1 - Retransmission unit for mobile object - Google Patents

Abstract

(Problem) Provided is a retransmission apparatus for mobile data broadcasting that can receive, store and use a large amount of facility information in a short time even when the power is not always turned on using a car.

(Solution means) FM tuner 8 as data receiving means for receiving information data of a mobile data broadcasting, a storage device 17 as storage means for storing the received data, and retransmission for transmitting the stored data. A power amplifier 13 as a means and a CPU 14 as retransmission control means for transmitting predetermined data from the stored data to the power amplifier 13 are provided.

Description

Retransmission device for data broadcasting for moving object {RETRANSMISSION UNIT FOR MOBILE OBJECT}

(Industrial use)

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a retransmission apparatus which, for example, receives a data broadcast for a mobile object by FM multicasting, digital broadcasting, and the like, and then retransmits the received data at a small output.

(Conventional technology)

At present, a service for mobile data is broadcasted by FM multicasting (text broadcasting), digital broadcasting, and the like, and the received data is stored by a vehicle-mounted terminal and called and used when necessary.

For example, in Japan, in the "FM teletext broadcasting" using a data radio channel (DARC), a service that updates 10 facilities and event information about three times a day using one channel of the teletext broadcasting. However, about 200 information is provided in a week, but the power of the onboard vehicle is not always turned on (the car is running) every time a program is updated. Therefore, all information is received and stored in memory. There is no number. Therefore, in order to more reliably receive the program, there is a method of constantly sending out about 200 pieces of data at a high update frequency.

By the way, the transmission method with the high update frequency needs to allocate 14 channels or more. However, it is practically difficult to allocate many channels in the necessity of updating more programs such as traffic information, weather information, news, and the like. In addition, a method in which a large area is allocated to real-time information and memory information such as facility information is transmitted in a small area is preferably used from the viewpoint of effective use of radio waves.

SUMMARY OF THE INVENTION The present invention has been made in view of the above problem, and an object thereof is to provide a retransmission apparatus for mobile data broadcasting that can receive, store and use a large amount of facility information in a short time even when the power is not turned on using a constant difference. have.

(Means to solve the task)

As shown in FIG. 11, the invention of claim 1 further includes data receiving means 50 for receiving information data of a mobile data broadcasting, a storage means 51 for storing the received data, and the stored data. And a retransmission control means 53 for transmitting predetermined data from the stored data to the retransmission means 52.

According to the invention of claim 2, the storage control means (54) according to claim 1 identifies the necessity of storage in the storage means (51) based on the identification code in the received data, and stores predetermined data. It is characterized by having a.

The invention of claim 3 further comprises a request receiving means (55) for receiving a request for the content of the retransmitted data, wherein the retransmission control means (53) responds to the received request. The data is sent to the retransmission means 52.

Effect of the Invention

According to the retransmission apparatus 1 for mobile data broadcasting according to the invention of claim 1, the data receiving means 50 receives information data of mobile data broadcasting transmitted from a general broadcasting apparatus such as an FM radio station, The received data is stored and stored by the storage means 51, and predetermined data is transmitted from the retransmission means 52 by the retransmission control means 53 from the stored data. By receiving the data from the means 52, it is possible to receive, store and use a large amount of information in a short time without receiving the broadcast from the broadcasting station in real time. In this case, the data from the retransmission apparatus 1 is received and displayed by, for example, a reception apparatus built in a vehicle navigation apparatus mounted on a vehicle.

In addition, since the retransmission control means 53 transmits predetermined data from the stored data, it is possible to retransmit the content information for the moving object and the content information in close contact with the area in the broadcasted information.

According to the retransmission apparatus 1 for moving object data broadcasting according to the invention of claim 2, the storage control means 53, based on the identification code in the received data, necessity of storage in the storage means 51 By identifying whether or not the storage means 51 stores predetermined data, the use date and time of daily traffic information such as road congestion information, event information that has passed the holding period, and large-scale suburban stores are changed. With limited information and limited information data, it is possible to prevent the storage area of the storage means 51 from being pressed.

According to the retransmission apparatus 1 for moving object data broadcasting according to the invention of claim 3, the request reception means 55 receives a request for the content of the retransmitted data, and the retransmission control means 53 receives the data according to the received request. By transmitting the information to the retransmission means 52, the user can retransmit the information that the user needs, thereby improving the user's convenience and effectively utilizing the radio waves.

1 is an overall configuration diagram showing an example of using a retransmission apparatus for moving object data broadcasting according to a first embodiment of the invention of claims 1 and 2;

2 is a diagram showing the configuration of the retransmission apparatus;

3 is a diagram showing a display example of a navigation device for receiving information resent from the retransmission device;

4 is a diagram showing a display example of a navigation device that receives information resent from the retransmission device;

FIG. 5 is a diagram showing a display example of a navigation apparatus for receiving information retransmitted from a retransmission apparatus for moving object data broadcasting according to a second embodiment of the invention of claim 3; FIG.

6 is a diagram showing a display example of a navigation device that receives information resent from the retransmission device;

7 is a diagram showing a display example of a navigation device for receiving information resent from the retransmission device;

8 is a diagram showing a display example of a navigation device for receiving information resent from the retransmission device;

9 is a diagram showing a display example of a navigation device that receives information resent from the retransmission device;

10 is a diagram showing a display example of a navigation device that receives information resent from the retransmission device;

11 is a configuration diagram of the claims of the present invention,

"Description of Symbols for Major Parts of Drawings"

1: retransmission device 8: FM tuner (data receiving means)

13: Power amplifier (retransmission means)

14: CPU (retransmission control transmission, storage control means, request receiving means)

17: storage device

Embodiment of the Invention

EMBODIMENT OF THE INVENTION Hereinafter, embodiment of this invention is described based on an accompanying drawing.

1 to 4 are diagrams for explaining the retransmission apparatus for moving object data broadcasting according to the first embodiment of the invention of claims 1 and 2, and FIG. 1 is an overall configuration diagram showing an example of using the retransmission apparatus. 2 is a diagram showing the configuration of the retransmission apparatus, and FIGS. 3 and 4 are views showing display examples of the navigation apparatus for receiving information retransmitted from the retransmission apparatus. Moreover, in FIG. 2, the broken line shows the control signal, the solid line shows the analog data signal, and the double line shows the digital data signal, respectively.

In Fig. 1, reference numeral 1 shows a retransmission apparatus installed in a site or a building of a facility 2 such as a gas station, a general merchandise grocery store, a car brokerage agency, a parking lot (including the ground and the basement). The retransmission apparatus 1 is provided with a reception antenna 4 for receiving FM text multicasting transmitted from a wide area FM broadcasting station 3, and a transmission antenna 6 for retransmitting the received information. Furthermore, when the retransmission apparatus 1 is installed in an underground facility such as an underground parking lot, the reception antenna 4 is provided on the ground and the transmission antenna 6 is installed underground.

Character information including, for example, about 10 facility information is transmitted from the wide area FM broadcasting station 3 three times a day, and the transmitted information is received by the retransmission apparatus 1, and Information data is stored and retransmitted from the retransmission apparatus 1. This retransmission is performed by the FM broadcasting station 3 for the moving object 5 within a range of about 10 m with a small output of about 200 information data transmitted from the FM broadcasting station 3 in the past one week. Is performed at a different frequency from 5 minutes to 10 minutes. As the predetermined data, facility information and the like within a range that can be driven by car from the installation place of the retransmission apparatus 1 are retransmitted.

A circular arc 7 in FIG. 1 schematically shows a range of arrival of the retransmission radio waves, and the navigation device 5 (not shown) has a function of receiving the retransmission radio waves as the moving body 5 within the range. And a passenger car mounted thereon.

As shown in Fig. 2, the retransmission apparatus 1 includes an FM tuner (data receiving means) 8 for selecting a predetermined frequency from the FM radio waves received by the receiving antenna 4 and the FM of the selected frequency. An FM multiple decoder 9 for extracting character information from radio waves, an FM modulator 10 for outputting a baseband signal (base signal) corresponding to an audio signal of an FM broadcast transmitted from the broadcasting station 3, and the FM multiple decoder MSK modulator 11 for performing digital modulation according to the digital data signal from (9) and outputting an SCA (multiple) signal, the SCA signal from the MSK modulator 11 and the base from the FM modulator 10. A signal synthesizer 12 for synthesizing the band signal and outputting the FM multiple signal, and a power amplifier (retransmission means) 13 for amplifying the output FM multiple signal and transmitting it from the transmission antenna 6; .

In addition, the retransmission apparatus 1 is configured to control the operation by a control signal from the CPU (retransmission control means) 14. Specifically, a frequency selection signal is output to the FM tuner 8, A selection frequency of the FM tuner 8 is set, a decode control signal is output to the FM multiple decoder 9 so that the reading processing of character information is controlled, and a frequency selection signal is output to the FM modulator 10 to modulate. The frequency of the carrier is set.

The retransmission apparatus 1 further includes storage devices 15, 16, and 17 for storing the program of the CPU 14 and the decoded character information and the program data of the decoded character broadcast as a reception buffer, respectively. In addition, the external memory 18 in which predetermined data is written and read is configured to be connectable to the retransmission apparatus 1.

In this case, as the storage control means for the CPU 14 to identify whether the memory 17 needs to be stored as program data on the basis of the identification code in the received data and to store predetermined data, The storage device 17 also functions as storage means for storing the received data, and storage control of program information is performed in the storage device 17.

Next, based on FIGS. 3 and 4, the operation of the retransmission apparatus 1 will be described from the display and the operation of the navigation apparatus mounted on the movable body 5.

In Fig. 3, 19 shows a display device of the navigation device. In the display device 19, information is displayed on a display, such as a character, a line, a picture, a symbol, or a map, of arbitrary size, or a contact. The liquid crystal panel 20 which can be operated by is used. Further, the display device 19 may be operated by voice.

Fig. 3 shows a menu screen (initial screen) immediately after starting the navigation device. In this initial screen, the menu title part 21, the menu item parts 22a to 22h and the operation switch parts 23a to 23d are shown. ) Is displayed. Moreover, the thick arrow A on the operation switch 23d schematically shows that the switch 23d is operated by contact.

In Fig. 3, 29 is a selection frame indicating that this menu item is selected, and the selection frame 29 is a desired item (e.g., "text broadcasting") by a predetermined operation (contact, voice command, etc.). ), The menu item is selected by confirming the selection by turning on the operation switch ("selection") 23d. In addition, the dashed frame 29 (in addition to the menu color and brightness may be different from other menu items as a distinctive display for selecting or not selecting the menu item).

When the above-mentioned predetermined information for the past one week is retransmitted from the retransmission apparatus 1, when reception of the retransmission information is started by selecting "text broadcasting" from the menu screen as shown in FIG. 4, the retransmission information is displayed on the display device 19 in the receiving order, and the displayed data is stored in the navigation device and used for redisplay.

The text broadcasting data is provided with an identification code, and is composed of a header line 24a for specifying a source and characteristics of information and a text content 24b for two lines of information. In the character broadcasting data, both the header 24a and the body content 24b are displayed only on the first stage 25a, and only the contents of the body are displayed on the second stage 25b to the fourth stage 25d. Further, the character information shown in Fig. 4 is configured to display the contents of one piece of information in four stages on one screen.

As described above, the retransmitted data is transmitted with the stored data in which the necessity is identified by the function as the storage control means of the CPU 14, and the information content according to the reception area and the reception date and time of the retransmitted data is displayed. do.

In this way, since the information transmitted from the wide area FM broadcasting station 3 is received, the received data is stored and stored by the storage device 17, and predetermined data is retransmitted from the stored data. A user receives data from the retransmission apparatus 1, and receives a broadcast from the wide area FM broadcasting station 3 in real time, and does not keep the navigation apparatus powered on at all times. Information can be received, stored and used in a short time.

Further, since predetermined data is transmitted from the data stored in the storage device 17, it is possible to retransmit the content information for the moving object and the content information in close contact with the region among the information broadcast from the wide area FM broadcasting station 3. .

In addition, based on the identification code in the received data, the CPU (memory control means) 14 identifies whether the storage device 17 needs to store the data and stores predetermined data. The storage area of the storage device 17 is compressed by data on the date and time of use such as road congestion information, event information over a period of time, shopping information that changes daily, such as a large-scale suburban store, or information that limits the usage area. Can be prevented.

Next, a retransmission apparatus for moving object data broadcasting according to a second embodiment of the invention of claim 3 will be described with reference to Figs. 5 to 10 are views showing a display example of a navigation device that receives information retransmitted from the retransmission device for moving object data broadcasting according to the second embodiment, wherein operation of the retransmission device 1 is performed by the moving object ( It demonstrates from display and operation of the navigation apparatus mounted in 5). Furthermore, the second embodiment relates to the retransmission apparatus 1 when a user requests retransmission information to the retransmission apparatus 1 of the first embodiment, and the configuration of the retransmission apparatus 1. Will be omitted. 3 and the eastern part represent the same or a substantial part.

Fig. 5 shows a display example of the display device 19 in which the menu item portion of the menu screen (initial screen) immediately after starting the navigation device has six rows. In this example, the menu title portion 26 and the menu are shown. The item portions 27a to 27f and the operation switch portions 28a to 28h are displayed.

When the user selects "drive information" on the menu screen shown in FIG. 5, the submenu screen shown in FIG. 6 is displayed. When a user requests information about the items 1 to 4 on the sub-menu screen in the request for the latest information, the latest information about the requested item is returned to the retransmission device 1. Is transmitted from and displayed on the display device 19.

The request for the information is performed by, for example, transmitting the item number of the menu to the retransmission apparatus 1 by the cellular phone. When a menu item number is transmitted to the retransmission device 1, predetermined data of the program data stored in the storage device 17 by a function as a retransmission control means of the CPU 14 based on the number. Will be transmitted.

In this case, the CPU 14 functions as a request receiving means so that the item number of the menu delivered by the cellular phone is input (received) to the CPU 14 via an external memory 18, and the CPU ( It is used for retransmission control processing according to 14).

When "1" is received as the item number, "1. The latest information content of "meal information selected in the car" is " 2. " The latest information content of " favorable shopping information " is " 3. " The latest information content of "notice spot information" is " 4. " The latest information content of "traffic related information" is retransmitted, received and displayed on the navigation device, and the displayed data is stored in the navigation device and used for re-display.

In this way, since the request of the information content to be retransmitted from the retransmission apparatus 1 is received and data is transmitted in accordance with the request, the information required by the user can be retransmitted and the user's convenience can be improved. And radio waves can be effectively used.

Claims (3)

Data receiving means for receiving information data of the mobile data broadcasting, storage means for storing the received data, retransmission means for transmitting the stored data, and predetermined data from the stored data to the retransmission means. And a retransmission control means for transmitting the retransmission apparatus for moving object data broadcasting. 2. The mobile data broadcasting according to claim 1, further comprising storage control means for identifying whether or not storage is necessary in said storage means and storing predetermined data, based on the identification code in said received data. Retransmission device. The method according to claim 1 or 2, further comprising request receiving means for receiving a request for the content of the retransmitted data, and wherein said retransmission control means transmits data to said retransmission means in accordance with the received request. A retransmission apparatus for data broadcasting for moving objects.