CN102354515A - Vehicle-mounted DVD (Digital Video Disk) control method and system - Google Patents

Vehicle-mounted DVD (Digital Video Disk) control method and system Download PDF

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Publication number
CN102354515A
CN102354515A CN2011102550835A CN201110255083A CN102354515A CN 102354515 A CN102354515 A CN 102354515A CN 2011102550835 A CN2011102550835 A CN 2011102550835A CN 201110255083 A CN201110255083 A CN 201110255083A CN 102354515 A CN102354515 A CN 102354515A
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China
Prior art keywords
dvd
vehicle
module
unit
control
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CN2011102550835A
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Chinese (zh)
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CN102354515B (en
Inventor
张小平
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深圳市阿龙电子有限公司
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Publication of CN102354515A publication Critical patent/CN102354515A/en
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Abstract

The invention relates to a vehicle-mounted DVD (Digital Video Disk) control method and system. The method comprises the following steps of: processing an operation instruction and displaying by using a control module; operating by using a man-machine interface; carrying out operation processing by a DVD; and carrying out data communication through a universal asynchronous receiving/transmitting module after the operation processing; and then displaying an operation result to be displayed by a display module after processing by a control unit. By using the vehicle-mounted DVD control method and system provided by the invention, the reliability of communication between a vehicle-mounted DVD machine core and a host and the stability of a vehicle-mounted DVD machine core software system are improved.

Description

A kind of vehicle-carrying DVD control method and system

Technical field

The present invention relates to a kind of DVD control method and system, relate in particular to a kind of vehicle-carrying DVD control method and system.

Background technology

Early stage in-vehicle player mainly is cassette tape radio reception, develops into CD then, then develops into DVD.Along with the client increases with requiring the performance of automobile product day by day; ARM(AdvancedRISCMachines; The title of a kind of microprocessor company; Usually the intelligent human/computer interface processor is called " ARM ") for the consumer product of core day by day ripe; ARM becomes the main product direction of high-end automobile audio; The advantage of ARM is that dominant frequency is high; Can be with different operating systems; Cooperate corresponding software can realize the function that a lot of conventional car stereo can't realize; And the interface almost is hard-core do very attractive in appearance; Operability is very strong, and the navigation and the 3G that touch such as band receive or the like.But ARM has a fatal problem to be, can not directly realize dvd playback, and dvd playback is a very important function of one of automobile audio.

The main flow mode of prior art is ARM chip and DVD mainboard, and when the client used CD, circuit switched to the DVD mainboard and comes work.But because the acp chip of DVD mainboard is broadcast special making for CD, resource is very limited, impossible tape operation system, and man-machine interface is very coarse, and the complete machine operability is poor, fits over inharmonious together with ARM.

 

Summary of the invention

The technical matters that the present invention solves is: make up a kind of vehicle-carrying DVD control method and system, the DVD play operation property that overcomes man-machine interface in the prior art is poor, the technical matters of resource-constrained.

Technical scheme of the present invention is: a kind of vehicle-carrying DVD control method is provided; Said vehicle-carrying DVD system comprises the vehicle-carrying DVD unit; The control module that said vehicle-carrying DVD unit is controlled; The communication unit that said control module and said vehicle-carrying DVD unit communicate; Said vehicle-carrying DVD unit comprises the DVD operational module that carries out the DVD operation; Carry out the Data Receiving/sending module of DVD data transmission and reception; Said control module comprises the man-machine interface operational module; The display module that shows DVD operational module operating result; Said communication unit is universal asynchronous reception/sending module, and said vehicle-carrying DVD control method comprises the steps:

Initialization: said vehicle-carrying DVD unit and said control module initialization, said vehicle-carrying DVD unit sends initialization information to said control module;

The transmit operation instruction: said control module instructs to the transmit operation of said vehicle-carrying DVD unit through said universal asynchronous reception/sending module;

Receive operational order: the Data Receiving/sending module of said vehicle-carrying DVD unit receives the operational order that said control module sends through said universal asynchronous reception/sending module;

Operate: the DVD operational module of said vehicle-carrying DVD unit sends to said control module by instruction manipulation and with operating result;

Receive and the processing operating result: said control module receives the operating result of said vehicle-carrying DVD unit and carries out handled.

Further technical scheme of the present invention is: the Data Receiving/sending module of said vehicle-carrying DVD unit receives the operational order that said control module sends, and judges the validity of said operational order simultaneously.

Further technical scheme of the present invention is: in carrying out operation steps; Said vehicle-carrying DVD unit comprises the operation of DVD playing back Voice & Video by instruction manipulation, and the broadcast result that said vehicle-carrying DVD unit continues to play result and renewal sends to said control module.

Further technical scheme of the present invention is: said vehicle-carrying DVD unit and said control module are through host-host protocol transmission data or instruction, and said transmission format protocol comprises: head sign indicating number, length, order or data, parameter, reflected code, tail sign indicating number.

Further technical scheme of the present invention is: said vehicle-carrying DVD unit comprises the protocol layer that carries out the protocol format conversion, and said vehicle-carrying DVD unit and said control module carry out data transmission through said protocol layer.

Further technical scheme of the present invention is: said vehicle-carrying DVD unit comprises the application layer that application service is provided, and said vehicle-carrying DVD unit and said control module carry out data transmission through said application layer.

Technical scheme of the present invention is: make up a kind of vehicle-carrying DVD control system; Said vehicle-carrying DVD system comprises the vehicle-carrying DVD unit; The control module that said vehicle-carrying DVD unit is controlled; The communication unit that said control module and said vehicle-carrying DVD unit communicate; Said vehicle-carrying DVD unit comprises the DVD operational module that carries out the DVD operation; Carry out the Data Receiving/sending module of DVD data transmission and reception; Said control module comprises the man-machine interface operational module; The display module that shows DVD operational module operating result; Said communication unit is universal asynchronous reception/sending module; Said man-machine interface operational module sends operational order through operation; Said Data Receiving/sending module receives operational order through said universal asynchronous reception/sending module; Said operational module is operated by the instruction that receives and operating result is sent to said Data Receiving/sending module; Said control module receives said operating result through said universal asynchronous reception/sending module, and the result is shown by said display module for the needs operation displayed.

Further technical scheme of the present invention is: said vehicle-carrying DVD unit comprises the protocol layer module of carrying out the protocol format conversion.

Further technical scheme of the present invention is: said vehicle-carrying DVD unit comprises the application layer module that application service is provided.

Further technical scheme of the present invention is: said DVD operational module is the DVD playing module.

Technique effect of the present invention is: make up a kind of vehicle-carrying DVD control method and system; Adopt control module to handle operational order and demonstration; Operate through the man-machine interface operational module; Undertaken carrying out data communication through said universal asynchronous reception/sending module after the operational processes by the DVD operational processes; After being handled by control module then, the result is shown by said display module for the needs operation displayed.A kind of vehicle-carrying DVD control method of the present invention and system have improved the reliability of vehicle-carrying DVD movement and main-machine communication and the stability of vehicle-carrying DVD movement software systems greatly.

 

Description of drawings

Fig. 1 is a structural representation of the present invention.

Fig. 2 is a process flow diagram of the present invention.

 

Embodiment

Below in conjunction with specific embodiment, technical scheme of the present invention is further specified.

Like Fig. 1; Shown in Figure 2; The specific embodiment of the present invention is: make up a kind of vehicle-carrying DVD control method; Said vehicle-carrying DVD system comprises vehicle-carrying DVD unit 2; The control module 1 that said vehicle-carrying DVD unit 2 is controlled; The communication unit 3 that said control module 1 and said vehicle-carrying DVD unit 2 communicate; Said vehicle-carrying DVD unit 2 comprises the DVD operational module 21 that carries out the DVD operation; Carry out the Data Receiving/sending module 22 of DVD data transmission and reception; Said control module 1 comprises man-machine interface operational module 11; Show that DVD operates 21 module operation results' display module 12; Said communication unit 3 is universal asynchronous reception/sending module, and said vehicle-carrying DVD control method comprises the steps:

Step 100: initialization, that is: said vehicle-carrying DVD unit 2 and said control module 1 initialization, said vehicle-carrying DVD unit 2 sends initialization information to said control module 1.The practical implementation process is following: when start; At first carry out said vehicle-carrying DVD unit 2 and said control module 1 initialization; Said vehicle-carrying DVD unit 2 sends to said control module 1 with initialization information; The initialization information that said control module 1 receives said vehicle-carrying DVD unit 2, the init state of storing said vehicle-carrying DVD unit 2 correlation modules.

Step 200: the transmit operation instruction, that is: said control module 1 instructs to 2 transmit operations of said vehicle-carrying DVD unit through said universal asynchronous reception/sending module.The practical implementation process is following: the man-machine interface operational module 11 of said control module 1 sends instruction through the man-machine interface operation, and said control module 1 will instruct and send to said vehicle-carrying DVD unit 2 through said universal asynchronous reception/sending module.

Step 300: receive operational order, that is: the Data Receiving/sending module 22 of said vehicle-carrying DVD unit 2 receives the operational order that said control module 1 sends through said universal asynchronous reception/sending module.In the specific embodiment, said vehicle-carrying DVD unit 2 transmits data or instruction with said control module 1 through host-host protocol, and said transmission format protocol comprises: head sign indicating number, length, order or data, parameter, reflected code, tail sign indicating number.

Step 400: operate, that is: the DVD operational module 21 of said vehicle-carrying DVD unit 2 sends to said control module 1 by instruction manipulation and with operating result.In the specific embodiment, said vehicle-carrying DVD unit 2 comprises the protocol layer that carries out the protocol format conversion, and said vehicle-carrying DVD unit 2 carries out data transmission with said control module 1 through said protocol layer 23.Said vehicle-carrying DVD unit 2 comprises the application layer that application service is provided, and said vehicle-carrying DVD unit 2 carries out data transmission with said control module 1 through said application layer.The practical implementation process is following: after the data reception/sending module 22 of said vehicle-carrying DVD unit 2 receives operational order; Send to protocol layer module 23; Said protocol layer module 23 sends to application layer module 24 by after instruction is resolved; Application layer module 24 is connected with DVD operational module 21 by application programming interfaces; Instruction after resolving is sent to DVD operational module 21; DVD operational module 21 sends to data reception/sending module 22 with operating result through application layer module 24, protocol layer module 23 after operating by instruction, sends to control module 1 by data reception/sending module 22 through communication unit 3.Said vehicle-carrying DVD unit 2 comprises the operation of DVD playing back Voice & Video by instruction manipulation, and the broadcast results that said vehicle-carrying DVD unit 2 continues to play result and renewal send to said control module 1.

Step 500: receive and handle operating result, that is: said control module 1 receives the operating result of said vehicle-carrying DVD unit 2 and carries out handled.The practical implementation process is following: after said control module 1 receives the operating result of said vehicle-carrying DVD unit 2, carry out subsequent operation according to operating result, such as: by display module operating result such as is shown at associative operation.

Preferred implementation of the present invention is: the Data Receiving/sending module 22 of said vehicle-carrying DVD unit 2 receives the operational order that said control module 1 sends, and judges the validity of said operational order simultaneously.Effective operational order is sent.

As shown in Figure 1; Technical scheme of the present invention is: make up a kind of vehicle-carrying DVD control system; Said vehicle-carrying DVD system comprises vehicle-carrying DVD unit 2; The control module 1 that said vehicle-carrying DVD unit 2 is controlled; The communication unit 3 that said control module and 1 said vehicle-carrying DVD unit 2 communicate; Said vehicle-carrying DVD unit 2 comprises the DVD operational module 21 that carries out the DVD operation; Carry out the Data Receiving/sending module 22 of DVD data transmission and reception; Said control module 1 comprises man-machine interface operational module 11; The display module 12 that shows DVD operational module operating result; Said communication unit 3 is universal asynchronous reception/sending module; Said man-machine interface operational module 11 sends operational order through operation; Said Data Receiving/sending module 22 receives operational order through said universal asynchronous reception/sending module; Said operational module 21 is operated by the instruction that receives and operating result is sent to said Data Receiving/sending module 22; Said control module 1 receives said operating result through said universal asynchronous reception/sending module 22, is shown by said display module 12 for needs operation displayed result.In the specific embodiment, said vehicle-carrying DVD unit 2 comprises the protocol layer module 23 of carrying out the protocol format conversion.Said vehicle-carrying DVD unit 2 comprises the application layer module 24 that application service is provided.

As shown in Figure 1; The practical implementation process is following: when start; At first carry out said vehicle-carrying DVD unit 2 and said control module 1 initialization; Said vehicle-carrying DVD unit 2 sends to said control module 1 with initialization information; The initialization information that said control module 1 receives said vehicle-carrying DVD unit 2, the init state of storing said vehicle-carrying DVD unit 2 correlation modules.The man-machine interface operational module 11 of said control module 1 sends instruction through the man-machine interface operation, and said control module 1 will instruct and send to said vehicle-carrying DVD unit 2 through said universal asynchronous reception/sending module.Data Receiving/the sending module 22 of said vehicle-carrying DVD unit 2 receives the operational order that said control module 1 sends through said universal asynchronous reception/sending module.After the Data Receiving/sending module 22 of said vehicle-carrying DVD unit 2 receives operational order; Send to protocol layer module 23; Said protocol layer module 23 sends to application layer module 24 through after instruction is resolved; Application layer module 24 is connected with DVD operational module 21 through application programming interfaces; Instruction after resolving is sent to DVD operational module 21; DVD operational module 21 is pressed behind the instruction manipulation operating result through application layer module 24; Protocol layer module 23 sends to Data Receiving/sending module 22, sends to control module 1 by Data Receiving/sending module 22 through communication unit 3.Said vehicle-carrying DVD unit 2 comprises the operation of DVD playing back Voice & Video by instruction manipulation, and the broadcast results that said vehicle-carrying DVD unit 2 continues to play result and renewal send to said control module 1.After said control module 1 receives the operating result of said vehicle-carrying DVD unit 2, carry out subsequent operation according to operating result, such as: by display module operating result such as is shown at associative operation.In the specific embodiment of the invention, said DVD operational module 21 is the DVD playing module.

Technique effect of the present invention is: make up a kind of vehicle-carrying DVD control method and system; Adopt control module to handle operational order and demonstration; Operate through the man-machine interface operational module; Undertaken carrying out data communication through said universal asynchronous reception/sending module after the operational processes by the DVD operational processes; After being handled by control module then, the result is shown by said display module for the needs operation displayed.A kind of vehicle-carrying DVD control method of the present invention and system have improved the reliability of vehicle-carrying DVD movement and main-machine communication and the stability of vehicle-carrying DVD movement software systems greatly.

Above content is to combine concrete preferred implementation to the further explain that the present invention did, and can not assert that practical implementation of the present invention is confined to these explanations.For the those of ordinary skill of technical field under the present invention, under the prerequisite that does not break away from the present invention's design, can also make some simple deduction or replace, all should be considered as belonging to protection scope of the present invention.

Claims (10)

1. vehicle-carrying DVD control method; Said vehicle-carrying DVD system comprises the vehicle-carrying DVD unit; The control module that said vehicle-carrying DVD unit is controlled; The communication unit that said control module and said vehicle-carrying DVD unit communicate; Said vehicle-carrying DVD unit comprises the DVD operational module that carries out the DVD operation; Carry out the Data Receiving/sending module of DVD data transmission and reception; Said control module comprises the man-machine interface operational module; The display module that shows DVD operational module operating result; Said communication unit is universal asynchronous reception/sending module, and said vehicle-carrying DVD control method comprises the steps:
Initialization: said vehicle-carrying DVD unit and said control module initialization, said vehicle-carrying DVD unit sends initialization information to said control module;
The transmit operation instruction: said control module instructs to the transmit operation of said vehicle-carrying DVD unit through said universal asynchronous reception/sending module;
Receive operational order: the Data Receiving/sending module of said vehicle-carrying DVD unit receives the operational order that said control module sends through said universal asynchronous reception/sending module;
Operate: the DVD operational module of said vehicle-carrying DVD unit sends to said control module by instruction manipulation and with operating result;
Receive and the processing operating result: said control module receives the operating result of said vehicle-carrying DVD unit and carries out handled.
2. according to the said vehicle-carrying DVD control method of claim 1, it is characterized in that the Data Receiving/sending module of said vehicle-carrying DVD unit receives the operational order that said control module sends, judge the validity of said operational order simultaneously.
3. according to the said vehicle-carrying DVD control method of claim 1; It is characterized in that; In carrying out operation steps; Said vehicle-carrying DVD unit comprises the operation of DVD playing back Voice & Video by instruction manipulation, and the broadcast result that said vehicle-carrying DVD unit continues to play result and renewal sends to said control module.
4. according to the said vehicle-carrying DVD control method of claim 1; It is characterized in that; Said vehicle-carrying DVD unit and said control module are through host-host protocol transmission data or instruction, and said transmission format protocol comprises: head sign indicating number, length, order or data, parameter, reflected code, tail sign indicating number.
5. according to the said vehicle-carrying DVD control method of claim 4, it is characterized in that said vehicle-carrying DVD unit comprises the protocol layer that carries out the protocol format conversion, said vehicle-carrying DVD unit and said control module carry out data transmission through said protocol layer.
6. according to the said vehicle-carrying DVD control method of claim 5, it is characterized in that said vehicle-carrying DVD unit comprises the application layer that application service is provided, said vehicle-carrying DVD unit and said control module carry out data transmission through said application layer.
7. vehicle-carrying DVD control system; It is characterized in that; Said vehicle-carrying DVD system comprises the vehicle-carrying DVD unit; The control module that said vehicle-carrying DVD unit is controlled; The communication unit that said control module and said vehicle-carrying DVD unit communicate; Said vehicle-carrying DVD unit comprises the DVD operational module that carries out the DVD operation; Carry out the Data Receiving/sending module of DVD data transmission and reception; Said control module comprises the man-machine interface operational module; The display module that shows DVD operational module operating result; Said communication unit is universal asynchronous reception/sending module; Said man-machine interface operational module sends operational order through operation; Said Data Receiving/sending module receives operational order through said universal asynchronous reception/sending module; Said operational module is operated by the instruction that receives and operating result is sent to said Data Receiving/sending module; Said control module receives said operating result through said universal asynchronous reception/sending module, and the result is shown by said display module for the needs operation displayed.
8. according to the said vehicle-carrying DVD control system of claim 7, it is characterized in that said vehicle-carrying DVD unit comprises the protocol layer module of carrying out the protocol format conversion.
9. according to the said vehicle-carrying DVD control system of claim 7, it is characterized in that said vehicle-carrying DVD unit comprises the application layer module that application service is provided.
10. according to the said vehicle-carrying DVD control system of claim 7, it is characterized in that said DVD operational module is the DVD playing module.
CN201110255083.5A 2011-08-31 2011-08-31 Vehicle-mounted DVD (Digital Video Disk) control method CN102354515B (en)

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CN1188963A (en) * 1996-09-27 1998-07-29 索尼公司 Data decoding system and method, transfer device and method, and receiving device and method
CN1290006A (en) * 1999-09-22 2001-04-04 松下电器产业株式会社 Audio Transmitting device and receiving device
CN1428596A (en) * 2001-12-24 2003-07-09 菱科电子技术(中国)有限公司 Multifunctional vehicle-mounted satellite navigation system
CN1670684A (en) * 2004-03-19 2005-09-21 微软公司 Asynchronous channel for displaying user interface elements
US20070130383A1 (en) * 2005-11-14 2007-06-07 Franck Dahan Memory Information Transfer Power Management
CN201117264Y (en) * 2007-11-13 2008-09-17 惠州市德赛汽车电子有限公司 Card inserting type automobile acoustics
KR20090132417A (en) * 2008-06-20 2009-12-30 포스데이타 주식회사 Apparatus with electric toll collection function and processing method thereof
CN101645290A (en) * 2009-04-17 2010-02-10 深圳市美赛达科技有限公司 Vehicle-mounted multimedia entertainment equipment
CN201622348U (en) * 2009-11-18 2010-11-03 黄维权 Vehicle-mounted navigation system core module
CN201637416U (en) * 2009-12-14 2010-11-17 东莞市美赛达欣电子科技有限公司 Vehicle-mounted DVD navigation device base on ARM processor with embedded operating system

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1188963A (en) * 1996-09-27 1998-07-29 索尼公司 Data decoding system and method, transfer device and method, and receiving device and method
CN1290006A (en) * 1999-09-22 2001-04-04 松下电器产业株式会社 Audio Transmitting device and receiving device
CN1428596A (en) * 2001-12-24 2003-07-09 菱科电子技术(中国)有限公司 Multifunctional vehicle-mounted satellite navigation system
CN1670684A (en) * 2004-03-19 2005-09-21 微软公司 Asynchronous channel for displaying user interface elements
US20070130383A1 (en) * 2005-11-14 2007-06-07 Franck Dahan Memory Information Transfer Power Management
CN201117264Y (en) * 2007-11-13 2008-09-17 惠州市德赛汽车电子有限公司 Card inserting type automobile acoustics
KR20090132417A (en) * 2008-06-20 2009-12-30 포스데이타 주식회사 Apparatus with electric toll collection function and processing method thereof
CN101645290A (en) * 2009-04-17 2010-02-10 深圳市美赛达科技有限公司 Vehicle-mounted multimedia entertainment equipment
CN201622348U (en) * 2009-11-18 2010-11-03 黄维权 Vehicle-mounted navigation system core module
CN201637416U (en) * 2009-12-14 2010-11-17 东莞市美赛达欣电子科技有限公司 Vehicle-mounted DVD navigation device base on ARM processor with embedded operating system

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