KR940005818B1 - Testing method of radio data system module - Google Patents

Abstract

The test method used for RDS has four steps including the first step setting input/output ports and clearing RAM; the second step checking any key pressed; the third step searching data when RDS information is recorded; the fourth step displaying the error messages on the display unit when the unexpected signal is detected, otherwise executing the program identification, the traffic announcement, the program service, the decorder identification, the radio text, and the clock time and data processing.

Description

RDS module test method

1 is a block diagram of a system to which the present invention is applied.

2 is a flowchart of a test method of an RDS module according to the present invention.

Third (a) is a group data transmission format diagram.

Third (b) is a data format diagram of one byte.

4 is a flowchart of an error retrieval step according to the present invention.

5 is a flowchart of a PI data processing step according to the present invention.

6 is a flowchart of a PTY data processing step according to the present invention.

7 is a flowchart of a TP data processing step according to the present invention.

8 is a flowchart of a TA data processing step according to the present invention.

9 is a flowchart of a PS data processing step according to the present invention.

10 is a flowchart of an M / S data processing step according to the present invention.

11 is a flowchart of a PC data processing step according to the present invention.

12 is a flowchart of a DI data processing step according to the present invention.

13 is a flowchart of an AF data processing step according to the present invention.

14 is a flowchart of an RT data processing step according to the present invention.

15 is a flowchart of a CT data processing step according to the present invention.

16 is a flowchart of a PIN data processing step according to the present invention.

17 is a flowchart of an Rx GRP data processing step according to the present invention.

18 is a flowchart of a display output data processing step according to the present invention.

* Explanation of symbols for main parts of the drawings

1: microcomputer 2: control unit

3 LCD driver 4 Display unit

5: Interface unit 5: RDS module

7: power supply unit 8: RDS encoder and modulation unit

9: personal computer 10: RDS test apparatus

The present invention relates to a method for testing the performance and data performance of the RDS module for car audio for receiving visual data by receiving a Radio Data System (RDS) broadcast.

RDS is a broadcasting system that multiplexes and transmits digital data to FM (Frequency Modulation) radio signals. It is currently being carried out in Europe. In order to receive RDS signals and provide visual services to viewers, RDS modules are tested for performance and data performance. It is necessary.

Accordingly, an object of the present invention is to provide a test method of an RDS module for displaying data received from an RDS module through a display device to search for normal operation of the RDS module, and to easily grasp the contents of the data.

In order to achieve the above object, the present invention provides a radio data system (RDS) broadcasting using an RDS test system including a microcomputer, a control unit connected to the microcomputer, an LCD driving unit connected to the microcomputer, and a label unit connected to the LCD driving unit. In the test method of the RDS module for receiving visual information and serving visual information, the first step of setting the input / output port, clearing the RAM and displaying the initial state, the second step of searching for the presence of the pressed key, and if there is a pressed key A third step of retrieving whether or not RDS data has been entered and retrieving the data value of the pressed key; and error retrieval (ERR), program identification (PI) data processing, and PTY (programme type) data according to the key data value. Processing, TP (Traffic Programme) data processing, TA (Traffic Announcement) data processing, PS (Programme Service) data processing, M / S (Music / Speech) data Processing, Program Control (PC) Data Processing, DI (Decoder Identification) Data Processing, Alternative Frequencies (AF) Data Processing, Radio Text (RT) Data Processing, Clock Time and Date (CT) Data Processing, and Program Item Number Is performed by a fourth step of performing data processing.

Hereinafter, with reference to the accompanying drawings will be described an embodiment of the present invention;

1 is a configuration diagram of a system to which the present invention is applied, 1 is a microcomputer, 2 is a control unit, 3 is an LCD driver, 4 is a display unit, 5 is an interface unit, 6 is an RDS module, 7 is a power supply unit, 8 is an RDS encoder and The modulator 9 denotes a personal computer (hereinafter referred to as "PC"), and 10 denotes an RDS test site. The RDS test apparatus to which the present invention is applied includes a microcomputer 1, a control unit 2, a liquid crystal display (LCD) driver 3, a display unit 4, an interface unit 5, and the like, as shown in FIG. It is comprised in the power supply part 7.

The power supply unit 7 supplies power to + 12V, + 5V, and -12V, respectively.

The interface unit 5 is connected to a personal computer (PC) 9 or a printer and a microcomputer 1 and is configured using an RS232C serial input / output interface IC for outputting data to the PC 9 or a printer. The status register for judgment, the status control register, and the data register for transmission and reception are appropriately controlled to enable asynchronous serial communication.

The LCD driver 3 is connected to the microcomputer 1 and the display unit 4 so as to receive the output from the microcomputer 1 and display it on the display unit 4. The LCD driver 3 is a general-purpose driver capable of various control by transmitting command data so that the LCD driver 3 can be released at 1/4 duty and 1/3 bias using a 14-segment decoder.

The display unit 4 is a visual display device connected to the LCD driver 3 to display the contents of data input to the current RDS module 6 under the control of the LCD driver 3 and to display 8 characters normally. It is composed.

The control unit 2 is connected to the microcomputer 1 to select a next function execution command to the microcomputer 1, and a execution name is given for each key, and the display unit 4 performs the function. The command is output.

2 is a flowchart of a test method of an RDS module according to the present invention.

First, set the input / output port (100), clear the RAM (Radom Access Memory) (110), and display the initial state as "RDS TOOL" as the character indicating the ON state of the power supply (120), and the pressed key. Search for the presence (130). If no key is pressed, a character indicating an initial state is continuously displayed, and if there is a pressed key, the presence or absence of an input of the RDS signal is searched (140). When the RDS signal is input, the data value of the pressed key is searched, and according to the retrieved data value, an error search (ERR) step, a PI (Programme Identification) data processing step, a PTY (Programme Type) data processing step, TP (Traffic Programme) data Processing step, TA (Traffic Announcement) data processing step, PS (Programme Service) data processing step, M / S (Music / Speech) data processing step, PC (Programme Control) data processing step, DI (Decoder Identification) data processing step , Performing AF (Alternative Frequencies) data processing, RT (Radio Text) data processing, Clock Time and Date (CT) data processing, and Program Item Number (PIN) data processing (170 to 290). If the data value of the key is incorrectly input, an initial display step 160 of displaying “RDS TOOL” on the display unit is performed (160).

FIG. 3 (a) is a group data transmission format diagram and FIG. 3 (b) is a one-byte data format diagram.

As shown in FIG. 3 (a), one group is composed of four blocks, one block is composed of three bytes again, and the first byte of the three bytes transmits reception status information and the remaining two bytes transmit RDS information. . As the first byte (D1, D4, D7, D10) for transmitting the reception status information of each block, 3 bits (B0, B1, B2) from the first bit as shown in Figure 3 (b) indicates a block. The fourth bit (B3) is allocated to indicate an error, and the third bit (B4, B5, B6) from the fifth bit is allocated to indicate a correction bit, and the eighth bit (B7) is fixed to "0". have.

4 is a flowchart of an error retrieval step 170 according to the present invention.

First, a character (ERR) indicating an error search state is output to the display unit (400), and the process proceeds to the Rx GRP (Receive Group) data processing step of receiving one group of data, and receives one group of data (410). Search for the fourth bit B3 of the status byte D1, D4, D7, or D10, and if an error occurs, increase the error counter (420, 430, 440). If there is a key search (450), the process returns to the main routine and proceeds to the key search step (480). If it is not completed, it repeats from step 410 of receiving the group data until the search for the error bits of all set groups is completed, and if it is completed, outputs the searched error status (470), and searches for the error bits until a new key is input. Continue.

5 is a flowchart of a program identification (PI) data processing step 180 according to the present invention.

First, a character (PI) indicating a PI data processing state is output to the display unit (500), and the process proceeds to the Rx GRP (Receive Group) data processing step for receiving one group data and receives one group data (510). Since the PI data is located in the first block of the group, the data of the first block of the group is converted into LCD display data and output (520, 530), and if there is an input key (540), it is returned to the main routine if the key is searched. If there is no input key, the PI data processing is continued from step 510 of receiving group data until a new key is input.

6 is a flowchart of a PTY (Programme Type) data processing step 190 according to the present invention.

First, a character (PTY) indicating a PTY data processing state is output to the display unit (600), the process proceeds to the Rx GRP data processing step of receiving one group data, and receives one group data (610).

Since the PTY data is located in the second block of the group, after receiving the group data, only the PTY data is selected (620), converted to decimal (630), converted to LCD display data and output (640, 650), and the input key is searched for. In step 660, the process returns to the main routine to proceed to the key search step. If there is no input key, the PTY data processing is continued from the step 610 of receiving group data until a new key is input.

7 is a flowchart illustrating a traffic program data processing step 200 according to the present invention.

First, a character (TP) indicating the TP data processing state is output to the display unit 700, and the process proceeds to the Rx GRP data processing step of receiving one group data (710).

Since the TP data indicating the presence or absence of traffic broadcasting is located in the second block of the group, only the TP data is selected after receiving the group data (720), and the TP data indicating the presence of traffic broadcasting is turned on. It is searched whether the state is "1" (730). If the TP data is on, the TP on state is converted to LCD display data (740). If the TP data indicating that there is no traffic broadcasting is turned off (0), the TP off state is converted to LCD display data. 750 and output (760).

If there is an input key (770), it returns to the main routine and returns to the key search step. If there is no input key, the TP data processing is continued from the step (710) of receiving group data until a new key is input. do.

8 is a flowchart of a traffic processing (TA) data processing step 210 according to the present invention.

First, the display unit outputs the character TA indicating the TA data processing state (800), searches for the input key (810), and returns to the main routine if there is one. The process proceeds to the Rx GRP data processing step of receiving the group data and receives one group data (820).

TA data indicating the start of traffic broadcasting exists only in the OA, OB or 15B group out of 32 groups from the OA group to the 15B group, thereby searching whether the received data is the OA, OB or 15B group including TA data (830). If the received data is not the OA, OB or 15B group, the key search step 810 is performed. If the received data is the OA, OB or 15B group, TA data is selected from the received data (840). Search if the selected TA data is ON to indicate the start of traffic broadcasting (850). If it is in the on state, the TA on state is converted into LCD display data (860), if it is not the start of traffic broadcasting, the TA off state is converted into the LCD display data (870) and outputted (880) and the key search step (810). Proceed to

9 is a flowchart of a PS (Program Service) data processing step 220 according to the present invention.

First, a character (PS) is output to the display unit to indicate the PS data processing state (900), and if there is an input key (910), if there is a key, it returns to the main routine and proceeds to the key search step. The process proceeds to the Rx GRP data processing step for receiving group data and receives one group data (920).

Since PS data exists only in OA, OB or 15B group among 32 groups from OA group to 15B group, search whether received data is OA, OB or 15B group including PS data (930), and receive data is OA, If it is not the OB or 15B group, the key search step 910 is performed.

Search whether or not all of the PS data consisting of 8 characters have been received (950). If all 8 characters are not received, proceed to the key search step 910. If all 8 characters are received, convert the PS character display data into LCD display data. And output (960, 970), and resell the PS data flag (980).

10 is a flowchart of the M / S (Music / Speech) data processing step 230 according to the present invention.

First, a character (M / S) indicating M / S data processing status is output to the display unit (1000), and if there is an input key (1010), if there is one, the control returns to the main routine and proceeds to the key retrieval step. If there is no key, the process proceeds to the Rx GRP data processing step of receiving one group data (1020).

M / S data indicating M / S transmission status exists only in OA, OB, 15B group among 32 groups from OA group to 15B group, so whether received data is OA, OB, 15B group including M / S data. If the received data is not the OA, OB or 15B group, the process proceeds to the key search step 1010. If the received data is the OA, OB or 15B group, the M / S data is selected from the received data (1040). M / S data is retrieved (1050) and if the M / S data is " 0 " representing a music service, the music character data is converted into an LCD display character (1060), and if " 1 " representing a speech service, speech character data is stored. LCD display characters are converted (1070) and output (1080).

11 is a flowchart of a PC (Programme Control) data processing step 240 according to the present invention.

First, the interface unit 5 is reselled (1100), the data format is set (1120), and the process proceeds to the Rx GRP data processing step of receiving one group data (1140). After receiving one group of data, the group number is transmitted (1141), the data to be transmitted is converted into an ASCII value (1142), and one byte of data is transmitted (1143 and 1145). After the data transfer of 1 byte is completed, it is checked whether the data transmission of 12 bytes of one group is completed, and the process proceeds to the transmission data conversion step 1142 until all the data of 12 bytes is transmitted (1146), and 12 is repeated. When the data transfer of the bytes is completed, the screen is wrapped (1147), and the input key is searched for (1148). If there is an input key, the process proceeds to the main routine, and if not, the process proceeds to the first group data receiving step 1140.

12 is a flowchart of a DI (Decoder Identification) data processing step 250 according to the present invention.

First, the display unit outputs a character DI indicating the DI data processing state (1200), searches for the input key (1210), returns to the main routine if it exists, and proceeds to the key search step. The process proceeds to the Rx GRP data processing step for receiving group data and receives 1 group data (1120).

DI data to represent each broadcasting type such as mono and stereo is composed of 4 bits, and all the DI data are received when group data is transmitted 4 times one bit per group. Since only the 0A, 0B, or 15B group of 32 groups up to the group is received, the received data is searched for a 0A, 0B, or 15B group containing DI data (1230), and the received data is not the 0A, 0B, or 15B group. In step 1210, if the reception data is a group of 0A, 0B, or 15B, DI data is selected and stored in the reception data (1240), and a search for completion of 4-bit reception is performed (1250). If the 4 bits of DI data are not received, the process proceeds to the key search step 1210. When all of the 4 bits of DI data are received, the DI data is converted into an LCD display character (1260) and output (1270).

13 is a flowchart of an AF (Alternative Frequencies) data processing step 260 according to the present invention.

First, a character (AF) indicating the AF data processing state is output to the display unit (1300), and if there is an input key (1310), if there is one, the control returns to the main routine and proceeds to the key search step. The process proceeds to the Rx GRP data processing step for receiving group data and receives 1 group data (1320).

Since AF data exists only in OA group among 32 groups from OA group to 15B group, search whether received data is OA group including AF data (1330), and if the received data is not OA group, search for key (1310). If the reception data is the OA group, the AF data of the reception data is selected and stored (1340). Since the AF data is transmitted to the group data by 2 stations, if 10 stations are transmitted and stored 5 times after receiving 0A group data five times (1350), the AF data of the 10 stations are sequentially converted into LCD display data and outputted ( 1360, 1370, 1380).

14 is a flowchart of the RT (Radio Text) data processing step 270 according to the present invention.

First, a character (RT) indicating the RT data processing state is output to the display unit (1400), and if there is an input key (1410), if there is one, the control returns to the main routine and proceeds to the key search step. The process proceeds to the Rx GRP data processing step of receiving one group data and receives one group data (1420).

RT data exists only in 2A and 2B groups out of 32 groups from 0A to 15B groups. The RT data is composed of 64 characters consisting of 8 bits, and 4 characters are transmitted in 1 group to 2A group, and 2B group. In this case, two characters are transmitted. Therefore, in case of the 2A group, one RT data consisting of 64 characters can be transmitted by sequentially transmitting the RT data in one group four times by 16 characters. In the case of the 2B group, the RT data in one group is 2 By transmitting 32 characters in sequence, one RT data consisting of 64 characters can be transmitted.

Therefore, if the first group data is received, it is searched whether it is a 2A or 2B group (1430). If the received data is not a 2A or 2B group, the process proceeds to the key search step 1410. If the received data is a 2A or 2B group, the reception is performed. RT data is selected from the data and stored (1440). Since the RT data is transmitted by 4 or 2 characters in one group data, when 64 characters of 2A or 2B group data are sequentially received and stored 16 times or 32 times (1450), the stored 64 characters of RT data are displayed on the LCD. The display data is converted into display data (1460) and output (1470).

15 is a flowchart of a clock time and date (CT) data processing step 280 according to the present invention.

First, a character CT indicating a CT data processing state is output to the display unit (1500), and if there is an input key (1510), if there is one, the control returns to the main routine and proceeds to the key search step. The process proceeds to the Rx GRP data processing step for receiving one group data (1520).

Since the CT data representing time exists only in the 4A group among 32 groups from the 0A group to the 15B group, the received data is searched to see if the received data is the 4A group including the CT data (1530), and the received data is not the 4A group. In step 1510, if the received data is the 4A group, CT data among the received data is selected and converted into LCD display data (1540, 1550).

16 is a flowchart of a PIN (Programme Item Number) data processing step 290 according to the present invention.

First, a character (PIN) indicating a PIN data processing state is output to the display unit (1600), and if there is an input key (1610), if there is one, the control returns to the main routine and proceeds to the key retrieval step. The process proceeds to the Rx GRP data processing step of receiving one group data and receives one group data (1620).

Since the PIN data exists only in groups 1A and 1B of 32 groups from 0A to 15B, the received data is searched for whether the received data is a 1A or 1B group including the PIN data (1630) and the received data is not the 1A or 1B group. If the received data is 1A, 1B group, the PIN data is selected from the received data and converted into day data, hour data, and minute data (1640, 1650). 1660), and converts the data into LCD data (1670).

FIG. 17 illustrates Rx GRP (Receive Group) data processing steps (410, 510, 610, 710, 820, 920, 1020, 1140, 1220, 1320, 1420, 1520, and 1620) for receiving group data according to the present invention. It is a flow chart.

Data reception from the RDS module is possible only when the RDS signal is received and the RDS terminal of the RDS module has fallen to the low level. Therefore, after setting the input / output port (1700), it is determined whether the RDS terminal is "0". (1710) If the RDS terminal is not "0", it returns to the main routine, and if the RDS terminal is "0", the microcomputer 1 can receive the RDS signal. Therefore, the microcomputer 1 instructed to send data and received 1 byte of data. Search (1720). If the reception of one byte of data has not been completed, the process returns to step 1710 of retrieving the state of the RDS terminal. If the reception of one byte of data is completed, the received data is stored in RAM (1730), and again, one group data is returned. In operation 1740, the reception is completed. If the reception of the 1 group data is not completed, the process returns to step 1710 of searching for the state of the RDS terminal. If the reception of the 1 group data is completed, the received 1 group data is converted (1750).

18 is a flowchart of display output data processing steps 470, 530, 650, 760, 880, 970, 1080, 1270, 1370, 1470, 1550, and 1670 according to the present invention.

In order to match the format of the microcomputer 1 and the LCD driver 3 during data transmission, the bits D7 to D0 must be transmitted to the bits D0 to D7. Therefore, data is converted (1800) and the input / output port of the microcomputer 1 is set. In operation 1810, data to be transmitted to the LCD driver 3 is loaded into the transmission buffer (1820). The terminal of the LCD driver 3 is set to an operable state (1830), and the LCD driver 3 is searched for a busy state and waits until the busy state is released (1840). When the busy state is released, the microcomputer 1 executes data transmission by setting a bit for data transmission (1850), searches whether all data to be transmitted is transmitted (1860), and transmits transmission data until completion if not completed. The process proceeds to step 1820 of loading into the buffer and repeats the process.

According to the present invention configured and operated as described above, the RDS data of each broadcasting station can be easily recorded during a field test that can easily grasp the contents of data received from each broadcasting station unknown to the car audio. In addition, it is possible to easily reproduce and utilize the recorded RDS data, which can be applied to test for RDS controller development and search for the presence or absence of RDS module.

Claims (22)

RDS composed of a microcomputer 1, a control means 2 connected to the microcomputer 1, an LCD driving means 3 connected to the microcomputer 1, and a marker means 4 connected to the LCD driving means 3; In the test method of the RDS module for receiving a RDS (Radio Data System) broadcast using the test system 10 to serve visual information; The first step (100, 110, 120) to set the input and output ports, clear the RAM and display the initial state, the second step (130) to search for the pressed key, and if there is a pressed key, it checks whether the RDS data is input or not. A third step (140, 150) of retrieving the data value of the pressed key, an error search (ERR), a program identification (PI) data processing, a program type (PTY) data processing, and a TP Traffic Programme data processing, TA (Traffic Announcement) data processing, PS (Programme Service) data processing, M / S (Music / Speech) data processing, PC (Programme Control) data processing, DI (Decoder Identification) data processing, AF A fourth step (160 to 290) for performing the function processing selected among (Alternative Frequencies) data processing, RT (Radio Text) data processing, Clock Time and Date (CT) data processing, and Program Item Number (PIN) data processing; , And the fourth step Haenghu the second stage 130 to the fourth step of the test method of the RDS module, characterized in that is carried out by the fifth step of performing (160 to 290) for repeating. The test method according to claim 1, wherein the RDS data is composed of 32 groups from the 0A group to the 15B group. The method of claim 1, wherein the error search performing step (170) outputs a character indicating an error search state of the display means (4) and receives one group data (400, 410), and the received one group data. Search for the presence or absence of an error and increment the error counter if there is an error (420, 430, 440), proceed to the third step of searching for the key data if there is a pressed key (450), the key If there is no key pressed in the searching step, searching whether the search for the error bit of the set group is completed and repeating from the first group data receiving step until completion is completed (460), and outputting the error status to the display means (4). Test method of the RDS module, characterized in that performed by step (470). The method as claimed in claim 1, wherein the PI data processing step 180 outputs a character indicating a PI data processing state to the display means 4, and receives one group data (500, 510). Converting PI data into display data of the data and outputting to the display means 4 (520,530); and if there is a search for a pressed key, proceed to the third step of searching for the key data; Test method of the RDS module, characterized in that performed by the step of proceeding to the receiving step (540). The method of claim 1, wherein the PTY data processing step 190 outputs a character indicating a PTY data processing state to the display means 4 and receives one group data (600, 610), and the received one group. Selecting PTY data from the data and converting the data into decimal numbers (620 and 630); converting the converted data into display data and outputting the display means (4) (640 and 650), and searching for the presence of a pressed key. If there is, and proceeds to the third step of retrieving the key data, if not, the test method of the RDS module, characterized in that performed by the step (660) to receive the first group data. The method of claim 1, wherein the TP data processing step 200 outputs a character indicating the TP data processing state to the display means 4 and receives one group data (700, 710), and the received one group. Step 730 of the TP data of the data, the step of searching whether the TP data is ON (On) and converting the on, off (OFF) state of the TP to the display data according to the search results (730, 740, 750), Outputting the converted data to the display means 4 (760); and if there is a search for a pressed key, proceeds to the third step of searching for the key data; if not, proceeds to receiving the first group data. Test method of the RDS module, characterized in that performed by step (770). The method of claim 1, wherein the TA data processing step 210 outputs a character indicating a TA data processing state to the display means 4, and searches for the key data if there is a pressed key. If the first group data is one of the 0A, 0B, and 15B groups, if the first group data is one of the 0A, 0B, and 15B groups, selecting TA data (830, 840); A step (850, 860, 870) of converting the TA on / off state into display data according to a search result by searching whether the state is on, and outputting the converted data to the display means (4) (880). Test method of the RDS module, characterized in that performed. The method of claim 1, wherein the PS data processing step 220 outputs a character indicating the PS data processing status to the display means 4, and searches for the key data if there is a pressed key. If it is not proceeded to the third step and receiving one group data (910, 920), and if the first group data is one of the group 0A, 0B, 15B group PS data if one of the group 0A, 0B, 15B group Selecting steps 930 and 940, searching whether all the PS data has been received, converting the PS data into display data when the reception is completed, and outputting the PS data to the display means 4 (950, 960 and 970), and the PS data flag. Test method of the RDS module, characterized in that performed by the step of reselling (980). The method according to claim 1, wherein the M / S data processing step 230 outputs a character indicating the M / S data processing state to the display means 4, and if there is a key pressed, the key is searched for. If not proceeding to the third step of retrieving the data step (1010, 1020) to receive the first group data, and if the first group data is one of the 0A, 0B, 15B group, one of the 0A, 0B, 15B group Selecting M / S data (1030, 1040), searching for the M / S data, and converting music or speech text data into display data according to a search result (1050, 1060, 1070), and And a step (1080) of outputting the converted data to the display means (4). The method of claim 1, wherein the step of retrieving the PC data 240 sets the data format, receives one group data, and transmits a group number (1100, 1120, 1140, 1141), and receives the received one group data. 112, 1143, 1145, and 1146 by converting by one byte until all 12 bytes are transmitted, and performing a line break of the screen and searching if there is a pressed key and searching for the key data. If not, the test method of the RDS module, characterized in that performed by the step (1147, 1148) of receiving the first group data. The method of claim 1, wherein the DI data processing step 250 outputs a character indicating the TA data processing status to the display means 4, 1200. In step 1210, 1220, if the first group data is one of the 0A, 0B, and 15B groups, if the group data is one of the 0A, 0B, and 15B groups, the DI data is received. Selective storage (1230, 1240) of the RDS module, characterized in that performed by the step (1250, 1260, 1270) is converted to the display data when the DI data is received and output to the display means (4) Test Methods. The method according to claim 1, wherein the AF data processing step 260 outputs a character indicating the AF data processing status to the display means 4 (1300), and searches for the key data if there is a pressed key. Step 1310, 1320 if receiving the first group data, if the step 1 group data is 0A group, and if the 0A group, if the 0A group to select and store the AF data (1330, 1340), 10 stations Repeating from the key retrieval step until it is stored (1350), and converting the stored data into one station until all ten stations are output (1360, 1370, 1380). Test method of the RDS module, characterized in that carried out by. The method of claim 1, wherein the RT data processing step 270 outputs a character indicating an RT data processing state to the display means 1400, and searching for the key data if there is a pressed key. In step 310, if receiving the first group data (1410, 1420), and if the first group data is one of the 2A, 2B group, and if the one group of 2A, 2B group, and storing the RT data And (1430, 1440), and converting the display data to the display means (1450, 1460, 1470) when the RT data is received. The method of claim 1, wherein the CT data processing step 280 outputs a character indicating a CT data processing state to the display means 4, and searches for the key data if there is a pressed key. If not proceeding to the third step, receiving 1 group data (1510 and 1520), and searching whether the 1 group data is a 4A group, and if the 4A group is selected, converts CT data to output to the display means (4). (1530, 1540, 1550) characterized in that the test method of the RDS module. The method of claim 1, wherein the PIN data processing step 290 outputs a character indicating a PIN data processing status to the display means 4, and searches for the key data if there is a pressed key. In step 310 and 1620, if the first group data is 1A and 1B groups, if the group data is one of the 1A and 1B groups, the PIN data is selected and converted. 4) The test method of the RDS module, characterized in that performed by the step (1630, 1640, 1650, 1660, 1670). The method according to any one of claims 3 to 15, wherein the receiving of the first group data (410, 510, 610, 710, 820, 920, 1020, 1140, 1220, 1320, 1420, 1520, 1620) is performed. Setting a port and retrieving whether data can be received from the RDS module (1700, 1710), and receiving a byte if the data is receivable according to the data receivable state search result (1720) 1730), repeating the step of searching for the data reception possible state until the reception of the 1 group data is completed (1740), and converting when the reception of the 1 group data is completed (1750). RDS module test method characterized in that. 16. The method according to any one of claims 3 to 9 and 11 to 15, outputting the data to the display means 4 (470, 530, 650, 760, 880, 970, 1080, 1270, 1370, 1470, Steps 1550 and 1670 convert data to be output and set input / output ports to match the format of the microcomputer 1 and the LCD driving means (1800 and 1830), and load the data to be output into the transmission buffer. Step (1820, 1830) of setting the upper LCD driving means (3) to an operable state and searching whether the LCD driving means (3) is currently busy and outputting data to the LCD driving means (3) if it is not busy. Test method of the RDS module, characterized in that performed by steps (1840, 1850). 10. The test method according to claim 8, wherein the PS data is composed of eight characters. 12. The method of claim 11, wherein the DI data is composed of 4 bits of 1 bit per group. The test method according to claim 12, wherein the AF data is transmitted to two stations per group. The test method according to claim 13, wherein the RT data consists of 64 characters. 17. The method of claim 16, wherein said one group of data consists of 12 bytes.