JPH1047977A - Character information receiver - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a character information receiver capable of accurately displaying a remaining time up to a destination. SOLUTION: In a vehicle-equipped character information receiver 2 which receives and displays character information transmitted from an external transmitter 3 utilizing radio waves of character multi-roadcasting, this receiver 2 comprises: receiving means 50 for receiving the character information transmitted; displaying means 51 for displaying the received character information; course data detecting means 52 for detecting changes of a car velocity for changes of a distance from a departure place ranging from a departure place to a destination; storing means 53 for storing the detected course data; remaining required time calculating means 54 for acquiring a remaining required time up to the destination based on the stored course data; and display controlling means 55 for displaying the remaining required time on the displaying means 51.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a character information receiving apparatus which is mounted on a vehicle and receives and displays character information transmitted from an external transmitting apparatus using radio waves of teletext broadcasting.

[0002]

2. Description of the Related Art Conventionally, a so-called "visible radio" has been known as a text information receiving apparatus for text multiplex broadcasting using FM radio waves or the like. In the information transmitted in the teletext broadcasting, one screen in a fixed format (for example, three lines with 15 characters per line) is set as one page, and one program is composed of a plurality of pages. You. In this case, the first line of the page is used as a header for displaying a source of information and the like, and the second and third lines are used as a text for displaying the contents of the information.

[0003] The character information receiving apparatus includes storage means for storing the received information, display means for displaying the received information, and display control means for displaying the stored information on the display means. The past information can be redisplayed accordingly.

On the other hand, there is a subtraction trip meter which is mounted on a vehicle and displays the remaining time until the vehicle arrives at the destination based on the average vehicle speed until the distance to the destination is input.

[0005]

However, in the above-described conventional subtraction trip meter, the remaining time to the destination is an estimated value calculated based on the average vehicle speed up to the present, and an incorrect case is likely to occur. There's a problem. Accurate calculation of the remaining time requires new addition of hardware and software such as a storage device and an arithmetic device, which increases the cost. On the other hand, the above-mentioned conventional character information receiving apparatus is provided with the display means, the storage means, and the arithmetic means as described above, and by using these, it is possible to display the remaining required time to the destination at low cost. It is considered possible.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and has as its object to provide a character information receiving apparatus capable of accurately displaying the remaining required time to a destination.

[0007]

As shown in FIG. 9, the present invention is mounted on a vehicle and receives and displays character information transmitted from an external transmitting device 3 using radio waves of teletext broadcasting. In the character information receiving apparatus 2, a receiving means 50 for receiving the transmitted character information, a display means 51 for displaying the received character information, and a method for changing a vehicle speed with respect to a change in distance from the departure point from the departure point. Course data detecting means 52 for detecting over the ground, storage means 53 for storing the detected course data, and remaining time for obtaining the remaining time from the current traveling position to the destination based on the stored course data. It is characterized by comprising a time calculating means 54 and a display control means 55 for displaying the remaining required time on the display means 51.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. FIGS. 1 to 8 are diagrams for explaining an information receiving apparatus according to an embodiment of the present invention. FIG. 1 is a configuration diagram of a broadcasting apparatus including the receiving apparatus, and FIG. 2 shows a specific example of the receiving apparatus. FIG. 3 is a block diagram showing the configuration of the receiving apparatus. FIG. 4 is a diagram showing an example of information received by the receiving apparatus. FIGS. 5 to 7 are flowcharts for explaining the operation of the receiving apparatus. FIG. 8 shows an example of a display screen of the receiving device.

[0009] In the figure, reference numeral 1 denotes a broadcasting device for performing text multiplex broadcasting by FM broadcasting.
While receiving and displaying text information, it is mounted on the vehicle,
A receiving device 2 having a function of a subtraction trip meter, a transmitting device 3 for wirelessly transmitting information to the receiving device 2, and an input device 5 for inputting traffic information and the like to the transmitting device 3 by a telephone line 4 or the like. ing.

The receiving device 2 includes a display 6 as display means for displaying received character information and the like. The display 6 includes display units 6a to 6c for displaying the received information in three lines, and a display unit 6d for guiding and displaying the traveling course on a map screen. When 2 functions as a subtraction trip meter, it serves as a display section for course data. The display page, display position, display time, and the like on the display 6 can be arbitrarily changed. The receiving device 2 includes an operation function key 11, a direction key (cursor key) 12 for moving a cursor, etc., an operation confirmation key 13, and a speaker 28 for outputting an audio signal.
The receiving device 2 functions as a subtraction trip meter by a predetermined operation of each of the keys 11 to 13.

As shown in FIG. 3, the receiving device 2 includes an antenna 16 for receiving a teletext signal transmitted from the transmitting device 3 and a tuner 18, and performs FM multiplexing on the received signal. Demodulation unit 1 for demodulating data
9 and a CPU 20 for controlling reception by the tuner 18 and controlling display of information on the display 6 based on course data described later.

The CPU 20 has a function as a course data detecting means for detecting a change in vehicle speed with respect to a change in the distance from the departure point. The course data is a storage device (storage means) for storing a control program and the like. The information is stored in the IC card 22, the ROM 23, the RAM 24, and the like. Further, the CPU 20 serves as a remaining time calculating means for calculating the remaining time from the current traveling position to the destination based on the course data, and as a display control means for displaying the calculated remaining time on the display 6. Function. Further, the CPU 20 is connected to a voice converter 26 for converting the received character information into a voice signal, and the voice signal is output from a speaker 28 via an amplifier (amplifier) 27. I have.

The character information transmitted from the transmitting device 3 has a format shown in FIG. 4, and is composed of a header 8 for displaying a source of information and a text 9 for displaying the content of the information. The screen is one page, and one program is composed of a plurality of pages.

Next, the operation of the receiving apparatus 2 according to the present embodiment will be described with reference to FIGS. When the subtraction trip meter function of the receiving device 2 is activated by a predetermined key operation, first, a course to be driven this time is selected, and the course data of this course is not stored and registered in the storage device, and If the distance to the destination is unknown (steps S1 and S2), the driving data to be inputted is registered as course data, and a key (eg, A, B, C) for registering the course data is designated, A message that the detection of the course data is started by turning on a predetermined key (VOICE key) is displayed on the display unit 6d (step S3).

When the VOICE key is turned on, detection of the course data is started. This course data is detected as a change curve of the vehicle speed with respect to a change in the distance from the departure place. When the VOICE key is subsequently turned off (step S4), the course data is temporarily stored and registered, and the passage of time in the data is stopped. Thus, it is possible to prevent the time when a break or the like is taken during traveling from being included in the course data. Further, the course data detection is restarted by turning on the VOICE key.

Next, at the time of arrival at the destination, the above A, B, C
When any one of the registration keys such as is operated, a display requesting selection of whether or not to perform registration is performed (Step S).
6, S7). Then, when registration is instructed by turning on the key A, course data indicating a change in vehicle speed with respect to a change in the distance from the departure point to the destination is stored and registered in the storage device (steps S8 and S9). The course data is displayed on the display 6. Also, key B
When an instruction to not register is given by the ON operation of (step S8), the process ends immediately.

In step S2, if the distance to the destination is already known, a display for inputting the distance is displayed, and the cursor 1 according to the display is displayed.
The distance is input and registered by the operation of step 2 (step S
10, S11). Then, the subtraction stop function is started at the start of traveling, and based on the distance to the input destination and the average vehicle speed up to now, the required time to the destination,
The remaining mileage is graphically displayed on the display 6 (steps S12, S13). When the predetermined VOICE key is turned on, the remaining travel distance and the remaining time are output by voice (steps S14 and S15).

Here, V for detecting the course data
By turning off the OICE key (step S16), the course data is stored, and the input of the data is stopped (step S17). Thus, it is possible to prevent the time when a break or the like is taken during traveling from being included in the course data. Further, the course data detection is restarted by turning on the VOICE key.

When the registration key is operated upon arrival at the destination (step S18), the operation proceeds to step S7.
Then, the process is stored, registered, and displayed, and the process ends (steps S8 and S9).

When a course in which course data has been registered is selected in step S1, the registered course data is displayed on the display 6 as shown in FIG. 8 (step S19). If the current position is the start point, the start button is pressed. If the current position is in the middle of the course, a message is displayed requesting that the start button be pressed after adjusting the position of the mark a indicating the current position (cursor position) to the current position (step). 20). When the start button is pressed, the trip meter function starts operating, and the process proceeds to step S12. FIG. 8 is graph data showing a change in the distance from the departure point and a change in the vehicle speed registered as the course data of the course A, and based on the current running position a, the remaining running distance and the destination. Is calculated and displayed.

For example, when the vehicle travels a distance A from the departure point when traveling the course of the entire distance A, the cursor a
Is displayed at the position shown in the figure, and the remaining (Aa) Km is displayed. The required time is obtained as an average value of vehicle speeds after a on the course data, assuming that the vehicle travels (A-a) Km.

When the vehicle equipped with the receiving device 2 stops running without performing a running course registration process after starting the engine as shown in FIG. 7 (step S2).
1) After the course has not been registered and a message asking the user to select whether or not to register the course and whether to continue inputting the course data is displayed (step S22), the process proceeds to step S4, and the process proceeds to step S4. Of course data registration is performed.

As described above, in the character information receiving apparatus 2, the relationship between the distance from the departure place and the vehicle speed is obtained from the departure place to the destination, and this is stored as course data, and when traveling on the same course, Is the remaining distance from the current point to the destination based on the stored course data,
Since the remaining travel time is displayed, the more accurate time and distance are displayed as compared to the conventional trip meter, which displays the distance and time to the destination based on the average vehicle speed up to now. Can be displayed.

[0024]

As described above, in the character information receiving apparatus according to the present invention, a change in vehicle speed with respect to a change in distance from the departure place is stored as course data, and the remaining distance from the current traveling position to the destination is stored. Since the time is obtained based on the stored course data and the remaining required time is displayed, the remaining required time is more accurate than that obtained by calculating the remaining required time based on the average vehicle speed to the current traveling position. There is an effect that can be.

[Brief description of the drawings]

FIG. 1 is a configuration diagram of a broadcasting device including a character information receiving device according to an embodiment of the present invention.

FIG. 2 is a schematic diagram showing a specific example of the receiving device.

FIG. 3 is a block diagram illustrating a configuration of the receiving device.

FIG. 4 is a diagram showing an example of information received by the receiving device.

FIG. 5 is a flowchart for explaining the operation of the receiving device.

FIG. 6 is a flowchart for explaining the operation of the receiving device.

FIG. 7 is a flowchart for explaining the operation of the receiving apparatus.

FIG. 8 is a diagram showing an example of a display screen of the receiving device.

FIG. 9 is a diagram showing the configuration of the claims of the present invention.

[Explanation of symbols]

 2 Character information receiving device 3 Transmitting device 50 Receiving means 51 Display means 52 Course data detecting means 53 Storage means 54 Remaining required time calculating means 55 Display control means

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁶ Identification number Agency reference number FI Technical display location H04B 1/16 H04B 1/16 G H04H 1/00 H04H 1/00 N

Claims (1)

[Claims] 1. A character information receiving device mounted on a vehicle for receiving and displaying character information transmitted from an external transmitting device using a radio wave of a text multiplex broadcast, wherein the character information receiving device receives the transmitted character information. Means, display means for displaying the received character information, course data detecting means for detecting a change in vehicle speed with respect to a change in distance from the departure point from the departure point to the destination, and storing the detected course data. Storage means, remaining required time calculating means for obtaining the remaining required time from the current traveling position to the destination based on the stored past course data, and display control means for displaying the remaining required time on the display means. A character information receiving device comprising: