CN107564256B - Vehicle-mounted sound RDS system and software monitoring method - Google Patents
Vehicle-mounted sound RDS system and software monitoring method Download PDFInfo
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- CN107564256B CN107564256B CN201710689009.1A CN201710689009A CN107564256B CN 107564256 B CN107564256 B CN 107564256B CN 201710689009 A CN201710689009 A CN 201710689009A CN 107564256 B CN107564256 B CN 107564256B
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- 238000012544 monitoring process Methods 0.000 claims abstract description 33
- 238000012545 processing Methods 0.000 claims abstract description 28
- 238000004458 analytical method Methods 0.000 claims abstract description 14
- 238000012856 packing Methods 0.000 claims description 15
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Abstract
The invention relates to a vehicle-mounted sound RDS system which comprises an RDS data processing module and a data display module, wherein the RDS data processing module comprises an RDS signal input circuit, a tuner unit, a main control unit and a wireless interface unit which are sequentially connected, the data display module comprises a wireless analysis unit and a data processing and graphical display unit which is connected with the wireless analysis unit, and the wireless interface unit is in wireless connection with the wireless analysis unit. The invention also provides a monitoring method of the RDS software of the vehicle-mounted sound equipment. The invention improves the RDS monitoring data transmission rate, expands the RDS software monitoring transmission channel and meets more application scenes by multiplexing the wireless interface in the existing vehicle-mounted sound system; and the system also realizes the classification and the graphical display of the RDS monitoring data, has simple monitoring effect, solves the problem that the monitoring data is not beneficial to viewing due to disordered information, and greatly improves the monitoring effect.
Description
Technical Field
The invention relates to an RDS data analysis and transmission system, in particular to a vehicle-mounted audio RDS software monitoring method.
Background
Rds (radio data system) is a data broadcasting system intended to provide display and control information for stations in the FM band. In a vehicle-mounted sound system, the adoption of a serial port output log is a relatively common RDS software monitoring method at present, and the method adopts a single serial port data channel, so that the data transmission rate and the application scene of RDS software monitoring are limited; in addition, due to the lack of classification and graphical display of the RDS data content, the monitoring information of the RDS software is disordered, the content is boring, and the monitoring effect of the RDS running state is reduced.
Disclosure of Invention
The invention aims to solve the technical problems and provides a vehicle-mounted sound RDS system which comprises an RDS data processing module and a data display module, wherein the RDS data processing module comprises an RDS signal input circuit, a tuner unit, a main control unit and a wireless interface unit which are sequentially connected, the data display module comprises a wireless analysis unit and a data processing and graphical display unit which are connected with the wireless analysis unit, and the wireless interface unit is in wireless connection with the wireless analysis unit.
Furthermore, the RDS data processing module further comprises an RDS data packing unit connected to the main control unit, and the RDS data packing unit is configured to readjust and pack the data structure analyzed by the tuner unit.
Further, the wireless interface unit and the wireless analysis unit are a bluetooth unit or a WIFI unit.
Further, the RDS signal input circuit and the tuner unit are connected through I2C-bus or SPI-bus connection.
The invention also provides a method for monitoring the RDS software of the vehicle-mounted sound equipment, which is based on the RDS system of the vehicle-mounted sound equipment and comprises the following steps:
s1, analyzing and processing the received RDS signal;
and S2, sending the analyzed and processed data to a data display module through the wireless interface unit.
Further, the step S1 specifically includes:
s11, the RDS signal input circuit sends the received RDS signal to the tuner unit;
s12, the tuner unit analyzes the RDS signal and sends the analyzed data to the main control unit;
s13, the main control unit receives the analyzed data and processes the analyzed data according to the RDS data packing unit;
further, the data format parsed according to the processing of the RDS data packing unit includes an ID for distinguishing each functional module of the RDS monitoring data, a Sub-ID for identifying the data content within the module, L ength for indicating the length of the data content, D0D1D2Dn for placing specific data, and a CS for verification.
Further, the data analyzed according to the processing of the RDS data packaging unit is packaged and packaged according to the sequence of ID, Sub-ID, L ength, D0D1D2Dn and CS.
Further, the ID includes a Tool module, a POCW module, a Current Audio module, a Station L ist module, an announcing module, a Preset module, and a Setting module, and the Sub-ID includes debugging and assertion information, an FM frequency band pattern, a Current radio Station, a site list, a recording history notification, Preset information, and RDS operating parameters.
Further, the data display module establishes an FM frequency band graph according to the POCW module in the data received from the RDS data processing module.
The invention improves the RDS monitoring data transmission rate, expands the RDS software monitoring transmission channel and meets more application scenes by multiplexing the wireless interface in the existing vehicle-mounted sound system; and the system also realizes the classification and the graphical display of the RDS monitoring data, has simple monitoring effect, solves the problem that the monitoring data is not beneficial to viewing due to disordered information, and greatly improves the monitoring effect.
Drawings
FIG. 1 is a schematic diagram of an RDS system for a car audio according to the present invention;
FIG. 2 is a RDS data transmission protocol format according to the present invention;
FIG. 3 is a schematic diagram of RDS data classification and graphical display according to the present invention.
Detailed Description
The following detailed description of the preferred embodiments of the present invention, taken in conjunction with the accompanying drawings, will make the advantages and features of the invention easier to understand for those skilled in the art and will therefore make the scope of the invention more clearly defined.
Example 1:
the RDS system of the car audio in this embodiment is as shown in fig. 1, and includes an RDS data processing module and a data display module, the RDS data processing module includes an RDS signal input circuit, a tuner unit, a main control unit and a radio interface unit that are connected in sequence, the data display module includes a radio analysis unit and a data processing and graphic display unit that is connected with the radio analysis unit, and the radio interface unit establishes a radio connection with the radio analysis unit.
The RDS signal input circuit comprises an antenna, a signal differential circuit and the like, the tuner unit is responsible for decoding the RDS signal, and the main control unit CPU is used for decoding the RDS signal through I2C or SPI bus reads Block data of RDS. Except that the traditional serial port module is used as a channel for monitoring RDS software, the present embodiment multiplexes the existing wireless module interface, such as Bluetooth or WIFI, etc., and multiplexes the existing wireless module interface in the existing vehicle-mounted sound systemThe wireless interface improves the transmission rate of the RDS monitoring data, expands the monitoring transmission channel of RDS software and meets more application scenes.
Example 2:
based on embodiment 1, in this embodiment, the RDS data processing module further includes an RDS data packing unit connected to the main control unit, and the RDS data packing unit is configured to readjust and pack the data structure analyzed by the tuner unit.
This embodiment is passed through RDS data packing unit and is organized the categorised arrangement of RDS monitoring data, has solved the monitoring data and is unfavorable for the problem of looking over because of the information confusion.
Example 3:
based on embodiments 1 and 2, in this embodiment, the RDS data processing module and the data display module further perform data transmission through a serial port, and the wireless interface unit and the wireless analysis unit are a bluetooth unit or a WIFI unit. The data display module can be a part of a mobile terminal, such as a mobile phone, so that the RDS application scene can be greatly expanded.
Example 4:
the embodiment provides a vehicle audio RDS software monitoring method based on the vehicle audio RDS system, which comprises the following steps:
s1, analyzing and processing the received RDS signal;
and S2, sending the analyzed and processed data to a data display module through the wireless interface unit.
According to the embodiment, the wireless interface in the existing vehicle-mounted sound system is multiplexed, the RDS monitoring data transmission rate is improved, the RDS software monitoring transmission channel is expanded, and more application scenes are met.
Example 5:
based on embodiment 4, in this embodiment, the step S1 specifically includes:
s11, the RDS signal input circuit sends the received RDS signal to the tuner unit;
s12, the tuner unit analyzes the RDS signal and sends the analyzed data to the main control unit;
and S13, the main control unit receives the analyzed data and processes the analyzed data according to the RDS data packing unit.
This embodiment is passed through RDS data packing unit and is organized the categorised arrangement of RDS monitoring data, has solved the monitoring data and is unfavorable for the problem of looking over because of the information confusion.
Example 6:
referring to fig. 2, based on embodiment 5, in this embodiment, the data format analyzed according to the processing of the RDS data packing unit sequentially includes an ID for distinguishing each functional module of the RDS monitoring data, a Sub-ID for identifying data content in the module, L ength for indicating the length of the data content, D0D1D2Dn for placing specific data, and a CS for verification, referring to fig. 2, the RDS monitoring data is uniformly packaged and transmitted according to the protocol format in fig. 2, referring to fig. 3, it is further described how to implement classification and graphical display of the RDS monitoring data in the present application, in fig. 3, the ID is divided into an ol to module, a pocw (picture of Current world) module, a Current Audio module, a Station L ist module, an announcing module, a presetting module, and a Setting module, so as to provide an implementation method for classifying the RDS monitoring data, the functional modules related to the classification include the following classification features:
(1) the Tool module realizes RDS debugging and assertion information, and is beneficial to finding whether the RDS is normal or not in running state;
(2) the POCW module draws the whole frequency range information of the RDS, which is beneficial to knowing the parameter information of surrounding sites;
(3) the Current Audio module reflects the parameter information of the Current radio station in real time;
(4) the Station L ist forms a site list for the user to select and play quickly;
(5) the Announce module records history announcement;
(6) the Preset module directly displays the Preset information, such as radio frequency, quality and the like;
(7) the Setting module is used for Setting the running state of the RDS.
And finally, an FM frequency band graph can be established through the information of the whole frequency band of the RDS provided by the POCW module, the imaging of RDS data is realized, the monitoring effect is simple and visual, and the monitoring effect is greatly improved.
The embodiments of the present invention have been described in detail with reference to the drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the gist of the present invention.
Claims (7)
1. An RDS system of a vehicle-mounted sound device is characterized by comprising an RDS data processing module and a data display module, wherein the RDS data processing module comprises an RDS signal input circuit, a tuner unit, a main control unit and a radio interface unit which are sequentially connected, the RDS data processing module further comprises an RDS data packing unit connected with the main control unit, and the RDS data packing unit is used for readjusting and packing a data structure analyzed by the tuner unit; the data display module comprises a wireless analysis unit and a data processing and graphical display unit connected with the wireless analysis unit, and the wireless interface unit is wirelessly connected with the wireless analysis unit;
the RDS data packaging unit is further used for distinguishing IDs of all function modules of RDS monitoring data, the IDs comprise POCW modules, and the data display module establishes FM frequency band graphs according to the POCW modules in the data received from the RDS data processing module.
2. The RDS system of claim 1, wherein the wireless interface unit and the wireless resolution unit are Bluetooth units or WIFI units.
3. The RDS system of claim 1, wherein the RDS signal input circuit and the tuner unit are connected via I2C-bus or SPI-bus connection.
4. A method for monitoring RDS software of a car audio, wherein the method for monitoring RDS software of a car audio is based on the RDS system of a car audio according to any of claims 1 to 3, comprising the steps of:
s1, analyzing and processing the received RDS signal;
s2, sending the analyzed and processed data to a data display module through a wireless interface unit;
the step S1 specifically includes:
s11, the RDS signal input circuit sends the received RDS signal to the tuner unit;
s12, the tuner unit analyzes the RDS signal and sends the analyzed data to the main control unit;
s13, the main control unit receives the analyzed data and processes the analyzed data according to the RDS data packing unit;
the processing of the analyzed data according to the RDS data packing unit comprises the following steps:
the ID of each functional module used for distinguishing RDS monitoring data;
the ID includes a POCW module, and the data display module establishes an FM frequency band pattern from the POCW module in the data received from the RDS data processing module.
5. An RDS software monitoring method for car audio according to claim 4, characterized in that the data parsed by the RDS data packaging unit processing further includes Sub-ID for identifying the data content in the module, L ength for representing the length of the data content, D0D1D2Dn for placing specific data and CS for verification.
6. An RDS software monitoring method for vehicle audio according to claim 5, wherein the data analyzed according to the RDS data packaging unit processing is packaged and packaged in the order of ID, Sub-ID, L ength, D0D1D2Dn and CS.
7. An RDS software monitoring method for vehicle Audio according to claim 5, wherein the ID further comprises a Tool module, a Current Audio module, a Station L ist module, an Announce module, a Preset module and a Setting module.
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