KR100411520B1 - Traffic information notification device and method - Google Patents

Abstract

In the road traffic information notification device, the broadcasting station modulates the traffic situation in each region code into nationalized data and transmits it through radio waves at any time.The radio device provided in the car demodulates the received traffic situation information. The display means stores the demodulated data with respect to the codes set by the roads for each region, and outputs them as texts. The broadcast receiving means receives and demodulates the data transmitted from the broadcasting station, and shapes the data in a predetermined state. Key input means for setting a region and road for confirmation, selecting a display of the received and stored data, general operation of demodulating communication data of the receiving station, and codes for each region and road code to be set in the set program. Control means for arithmetic processing according to the A ROM storing a unique code for each road and a RAM temporarily storing information of a traffic condition received by a driver's setting, a memory means for storing a set traffic condition, and a traffic condition stored in a RAM area of the memory means. And display means for outputting and displaying the data in Korean and ASCII characters in order.

Description

Traffic information notification device and method

The present invention relates to a road traffic information notification device, and more particularly, a broadcasting station modulates traffic conditions into nationalized data in each region code, and transmits them through radio waves at any time, and is provided in a vehicle. The present invention relates to a traffic situation information notification device and method for demodulating the received traffic situation information, storing demodulated data for codes set by the roads for each region, and then outputting the text as text through the display means.

In the conventional car, in order to check the traffic situation information of the driving area or the area to be operated, it is necessary to select a channel of a traffic broadcasting station occupying an arbitrary frequency band and then check the situation of the desired area. The situation of traffic notified by is not a traffic information organized by roads by region, but a random notification method is used. Therefore, there is a problem that a lot of waiting time is required in order to obtain traffic information of any desired area. .

In addition, the car audio system provided in the vehicle has a single power on / off method, and operations such as reception and playback are performed independently of each other. Therefore, in order to listen to traffic broadcasting, the driver prefers a CD player or a tape recorder. There is a problem in that it is not possible to listen to the sound system or other broadcasting channels, and even if the traffic broadcasting is continuously listened to, the driver cannot continuously obtain traffic information about the desired area.

The present invention has been made in view of the above-described problems, and the object thereof is to modulate the traffic situation of a corresponding region by nationalized data according to the codes of each region in the station, and transmit them at an arbitrary time, and receive them at a broadcast receiving apparatus. Only the data of the region and road set by the driver are demodulated and stored in the nationalized data, and the LCD display means displays the information of the traffic received through the broadcasting station. It is intended to provide convenience by simultaneously playing the recorder.

The present invention for achieving the above object comprises: broadcast receiving means for receiving and demodulating data transmitted from a broadcasting station and then shaping a predetermined state;

Key input means for setting an area and a road for checking traffic information and for selecting a display of received and stored data;

Control means for performing an operation for demodulating the communication data of the received broadcasting station and calculating a region code and a road code according to a set program;

A memory means for storing program data and a ROM for storing unique codes for each road and a RAM for temporarily storing information of a traffic situation received by a driver, the memory means for storing the set traffic situation;

And display means for outputting and displaying data on traffic conditions stored in a RAM area of the memory means in Korean and ASCII characters in order.

In addition, another aspect of the present invention comprises the steps of modulating and transmitting the road information detected by the broadcasting station in the HDLC communication format;

Setting selection for each region and road desired for traffic information;

Demodulating the HDLC communication format of the broadcast station and analyzing and storing information on the set area and road;

And sequentially displaying the stored road information according to a selection signal.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

As can be seen in Figure 1, the traffic situation information notification device according to the present invention comprises a broadcast receiver 1, a key input unit 2, a control unit 3, a memory unit 4 and a display unit 5, The broadcast receiving unit 1 receives and demodulates the data transmitted from the broadcasting station in the HDLC communication format as shown in FIG. 4 and forms a predetermined state according to the control signal of the control unit 3.

The key input unit 2 selects and inputs a region and a road condition to which the driver will drive as shown in FIGS. 3A to 3F and 4A to 4E.

The control unit 3 performs an overall operation for demodulating the data set in the key input unit 2 from the HDLC communication format of the received broadcasting station, and calculates a region code and a road code according to the set program.

The memory unit 4 includes a ROM storing program data and a code unique to each road, and a RAM temporarily storing information of traffic conditions that are received by a driver's setting. The memory unit 4 stores a set traffic state and then displays a display unit 5. The relevant data is applied to) side.

At this time, the information received from the broadcasting station and the time recorded when the reception is completed are stored in the RAM area allocated to each 400 bytes per setting number, and are required for displaying the broadcasting station channel data corresponding to the selected area or road, and setting for each area and road. The data of city, state and highway, national name, city (county, county) and east (eup) information for each region setting, and detailed information data necessary for setting for each road, especially highway section, are stored in the ROM area.

The display unit 5 outputs and displays data on traffic conditions stored in the RAM area of the memory unit 4 in Korean and ASCII characters in order.

In the present invention having the function as described above, the notification operation of the traffic situation information will be described with reference to the accompanying flowchart.

First, the broadcasting station modulates the traffic conditions of each region by road to the HDLC communication format as shown in FIG. 4 attached to transmit wireless data. In the HDLC communication format in which the information of traffic conditions is stored, the first byte is a start flag. 2 to 5 bytes are addresses, and 2 bytes are information ID numbers and 3 to 5 bytes are codes of actual areas or roads.

The sixth byte is the total number of frames to be transmitted by the broadcasting station, the seventh byte is a frame number indicating the current number of information data, and the eighth to seventeenth bytes are actual information data.

The eighteenth to nineteenth bytes are CRC check data in the FCS, and the flag indicates that the last 20th byte is a complete one frame as the end flag.

The information processing and transmission flow operation of the broadcasting station for transmitting the communication format of the HDLC having the structure as described above, as can be seen in the accompanying Figure 5, first, after generating the address of a specific region (S1), It is determined whether the data is new (S2).

If the corresponding data is new in S2, the ID is changed (S3) and data is input (S4).

Subsequently, the total number of frames to be transmitted is divided by 10 bytes based on the input data (S5), the transmission frequency is initialized (S6), and the information data to be transmitted is calculated (S8).

Subsequently, the generated data is divided by 10 bytes to synthesize transmission information data (S8) and actually transmitted by one frame (S9), and it is determined whether the transmission of the total frames is completed (S10).

If the transmission of the total frame is not completed in step S10, the transmission count counter is increased, and then the process is repeated, and if the data transmission of the total frame is completed, it is determined whether information of another region is to be transmitted (S11). If there is a transmission, the routine of S1 is repeatedly executed, and if there is no more data to be transmitted, the transmission operation is terminated.

In addition, in order to input and set an area and a road desired by a driver, ten keys (0-9) and up and down keys, setting keys, viewing keys, and previous keys provided in the key input unit 2 are used. As can be seen, when a key input is detected in a state in which the receiving device is initialized (S21) (S22), the display unit 5 displays the setting number input request as shown in Fig. 2A (S23), and then the numeric key input processing routine. Enter (S24).

 As can be seen in FIG. 8, it is determined whether the setting number is input through the key input unit 2 (S42). If the setting number is input, the input key number is stored in the memory unit 4, and the national road number If the input (S43) of the road number is also stored in the memory unit 4 (S44, S45) is used for reading, storing and display of the memory.

Thereafter, when the setting key is input to the key input unit 2, the control unit 3 enters the setting key processing routine as shown in FIG. 6 (S25).

Entering the setting key processing routine, as can be seen in the attached Fig. 11, inputting the setting number (S82), and entering the setting key is executed to store the set number (S85), enter the national road number (S83) When the setting key is input, the national road number is stored (S84), and the area code and the road number are stored according to the input signal (S89, S90).

In this case, the display unit 5 may display a state as shown in FIG. 2 (B) so that an input mode for each region or a road may be selected. When an input of an up / down key is detected in FIG. 6 (S26), the routine of FIG. 10 is executed. When an input of a setting key occurs, a region selection mode is set in case of a region, and a corresponding road is selected in case of a road.

In this case, when the regional mode is selected, FIG. 3 (C) attached to the display unit 5 is displayed, and when the mode for each road is selected, FIG. 3 (A) is displayed.

At this time, select the desired area through the up and down keys, and then enter the setting key to calculate the position as shown in S83 of Fig. 11 to display detailed information about the city (city, county) through the display unit (5). Display as 2 (D).

In addition, when the desired place is selected, the final information about the town is displayed through the display unit 5 as shown in FIG.

On the other hand, in the road-by-road input mode, except for other local items, when the section-by-section selection is made in the accompanying FIG. 3B, the display unit 5 is displayed as shown in FIG. 3D.

At this time, when selecting and inputting the national road number and pressing the setting key, the national road number is calculated and the corresponding setting number is stored in the memory unit 4.

If the previous key is input during each region or road input, if the setting key is not input, the previous screen is cleared after calculating the mode of the previous state.

As described above, the transmitted data of the broadcasting station, which is modulated to the HDLC communication format and transmitted at an arbitrary time unit in the state where the input of the desired region is completed, is demodulated through the tuner of the broadcast receiver 1 and then applied by the controller 3. It is applied to the control part 3 side via the data transmission terminal RxD according to the clock CLK.

In this case, since the received data is in the form of HDLC communication format as shown in FIG. 4, 10 bytes are extracted from the 20 bytes of data and used as actual data.

As can be seen in the accompanying flowchart of FIG. 7, when data is received one frame at a time, the controller 3 checks the ID (S31), and if the ID is the same, checks whether the previous data exists (S34). If the data exists, it returns. Otherwise, as in the case where the ID is different, the total number of frames is checked to confirm whether the data of all the frames has been received (S32). If the reception of the total frames is completed, the reception completion flag is set (S33). The reception time is stored (S35).

If data of the total frame has not been received, data of another frame must be received continuously, and the memory address is calculated based on the current frame number (S36), and then stored in the corresponding RAM area and returned (S37).

As described above, in order to check the information of the region in the state in which the driver-specific region-specific road information is received and stored as described above, the setting number is input through the key input unit 2 as shown in FIG. When the view key is input (S75), the setting number is stored in the display number (S76), the corresponding station station channel is tuned (S64), and the corresponding data is read from the RAM area of the memory unit 4 based on the display number (S65). After analyzing whether the data exists (S66), if the data does not exist, display it on the display unit 5 where there is no data (S71), and output an error message when data is received but data of the total frames are not received. (S70).

If the reception of the normal data is completed and the termination flag is set, the stored data is read and displayed on the display unit 5 and the received time is displayed at step S69.

As described above, the transmission degree from the station is analyzed from the data, and the traffic condition information for each road desired by the driver is analyzed and stored in the memory means, and then instructed through the display means according to the driver's selection. The audio system provided in the vehicle, which is convenient for the situation reading, provides convenience by separately performing the operation of receiving and playing the broadcast desired by the user.

1 is a block diagram of a traffic situation information notification device according to the present invention

2A to 2F are exemplary diagrams of tables for setting by region for checking traffic situation information.

3A to 3E are table views for setting roads for checking traffic situation information.

4 is an exemplary diagram of an HDLC communication format in which traffic situation information is set according to the present invention.

5 is a flowchart of information processing and transmission of a broadcasting station according to the present invention.

6 is a flowchart of a main program in the present invention.

7 is a flowchart illustrating a reception process of a radio side in the present invention.

8 is a flowchart illustrating processing of numeric key input on the radio side in the present invention.

9 is a flowchart illustrating processing of inputting a previous key in the present invention.

10 is a flowchart illustrating processing for inputting up and down and view key in the present invention.

11 is a flowchart illustrating processing of inputting a setting key in the present invention.

Explanation of symbols on the main parts of the drawings

1: broadcasting receiver 2: key input unit

3: control unit 4: memory unit

5: display unit

Claims (9)

Broadcast receiving means for receiving and demodulating the data transmitted from the broadcasting station and shaping the data in a predetermined state; Key input means for setting an area and a road for checking traffic information and for selecting a display of received and stored data; Control means for performing an operation for demodulating the communication data of the received broadcasting station and calculating a region code and a road code according to a set program; A memory means for storing program data and a ROM for storing unique codes for each road and a RAM for temporarily storing information of a traffic situation received by a driver, the memory means for storing the set traffic situation; And display means for outputting and displaying data on traffic conditions stored in a RAM area of said memory means in Korean and ASCII characters in order. The method according to claim 1, The memory means stores the information received from the broadcasting station and the time recorded when the reception is completed in the RAM area allocated to each of 400 bytes per setting number, and is displayed when setting the channel data corresponding to the selected area or road and the area and road setting. Data of city, province and highway, national name, city (county, county) and east (eup) information for each region and detailed information data necessary for setting by road and especially highway section are stored in ROM area. Traffic information notification device. The method according to claim 1, Traffic situation information notification device, characterized in that the data transmitted from the broadcasting station is modulated in the HDLC communication format. The method according to claim 1, And the display means outputs and displays data on traffic conditions stored in a RAM area in Korean and ASCII characters in order. The method according to claim 3, In the HDLC communication format, the first byte is a start flag, the second to fifth bytes are addresses, 2 bytes are information ID numbers, 3 to 5 bytes are codes of a real area or a road, and the sixth byte is a total number to be transmitted by a broadcasting station. Number of frames, 7 bytes is a frame number indicating how many times the current information data is, 8th to 17th bytes are actual information data, 18th to 19th bytes are CRC check data by FCS, Traffic situation information notification device, characterized in that 20 bytes consisting of the end flag. Modulating and transmitting road information detected by a broadcasting station into an HDLC communication format; Setting selection for each region and road desired for traffic information; Demodulating the HDLC communication format of the broadcast station and analyzing and storing information on the set area and road; Traffic condition notification method comprising the step of sequentially displaying the stored road information according to the selection signal. The method according to claim 6, Generating an address for a specific area in order to transmit the road information and determining whether the data is new; If the data is new, changing the ID, dividing the input data by 10 bytes, calculating a total frame, and initializing the number of transmissions; And performing frame transmission by synthesizing the divided data, setting an end flag when the transmission is completed, and incrementing a transmission counter when the transmission is not finished. The method according to claim 6, Analyzing and storing the received data in the process includes checking the ID of the received data and determining whether the previous data exists in the case of the same ID; If there is data existing in the same ID in the above step, returning the same ID or confirming whether or not the total frame is received if there is no previous existing data; Setting a completion flag when the total frame is received and storing the received time; Computing the memory address on the basis of the received frame number, and storing and returning to the memory area if the continuous reception is received. The method according to claim 6, Storing the setting number applied by the key input means as the display number and then tuning the corresponding channel to display the data received in the process; Reading data from a corresponding memory area based on the display number; If there is no data reading in the corresponding memory area of the above step, it indicates that there is no data, and if the total frames of the received data are not received, an error message is outputted, and when the reception completion flag is detected, the corresponding data and the received time are displayed. Traffic status notification method comprising the step of displaying through the display means.