CN203133281U - Beidou satellite and GPS double-positioning multimedia embedded plate - Google Patents
Beidou satellite and GPS double-positioning multimedia embedded plate Download PDFInfo
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- CN203133281U CN203133281U CN 201320103152 CN201320103152U CN203133281U CN 203133281 U CN203133281 U CN 203133281U CN 201320103152 CN201320103152 CN 201320103152 CN 201320103152 U CN201320103152 U CN 201320103152U CN 203133281 U CN203133281 U CN 203133281U
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Abstract
The utility model relates to the field of a multimedia processor technology, and specially relates to a Beidou satellite and GPS double-positioning multimedia embedded plate. The Beidou satellite and GPS double-positioning multimedia embedded plate comprises a DaVinci processor, a power supply module and a simulation video input interface, a VGA output interface, an UART interface, an SD card interface, at least one USB host interface and an external memory which are connected with the DaVinci processor, and a GPS module and a Beidou satellite module which are communicated with the DaVinci processor through the UART interface. According to the Beidou satellite and GPS double-positioning multimedia embedded plate, the DaVinci processor is employed, wherein the advantages of DSP and ARM processors are integrated, various operation systems can run, large addressing space is provided, abundant external interfaces are provided, a strong digital signal processing capability is provided, compared to the condition that two processors are disposed on a hardware plate individually, and then information interaction is achieved through an external memory, the Beidou satellite and GPS double-positioning multimedia embedded plate is more efficient, and area and cost of a circuit board are saved.
Description
Technical field
The utility model relates to the multimedia processor technical field, is specifically related to the embedded plate of a kind of Big Dipper GPS two location multimedia.
Background technology
The multimedia messages processing platform must satisfy the vision signal processing to the requirement of arithmetic speed and memory capacity, should have abundant external interface simultaneously.Because system requirements has abundant external interface, as USB mouth, SD clamping mouth, UART etc., relate to the content of aspects such as management of process, memory management, file management, equipment control here, so this processing platform needs the support of operating system.
The framework of multimedia messages processing platform mainly is the processor of choosing adaptation according to project demands.At present, generally adopt single-chip microcomputer, DSP series processors or arm processor to carry out.Poor, the high request that can not satisfy the user of the embedded plate processing power of Big Dipper GPS two location multimedia under the technology like this.
The single-chip microcomputer series processors is low owing to its arithmetic speed, the limited requirement that is difficult to satisfy the vision signal processing of addressing space.The DSP series processors has powerful operation capacity, but its addressing space is limited, is difficult to satisfy the vision signal processing to the requirement in big capacity storage space, also is difficult to satisfy operating system to the requirement of storage space management.The dsp processor mode of operation is single, does not have protected mode, the ability that the process context switches a little less than, the difficulty of graft procedure systematic comparison thereon.The external interface of dsp processor is generally fairly simple in addition, needs user oneself expansion USB mouth, SD clamping mouth etc., and these expansions have increased the difficulty of system's design, also can influence the reliability and stability of system simultaneously.Arm processor has stronger context switching capability, bigger storage space, and abundant advantages such as external interface, it is suitable for moving various operating systems.But the arithmetic capability of present arm processor a little less than, be difficult to satisfy the requirement of complex image processing algorithm.
The utility model content
The purpose of this utility model is to provide a kind of Big Dipper GPS two location multimedia embedded plate in order to overcome shortcoming of the prior art, is intended to solve the technical matters that the embedded plate processing power of existing multimedia is poor, can not satisfy high request.
The embedded plate of a kind of Big Dipper GPS two location multimedia comprises Leonardo da Vinci's processor, power module and the analog video input interface that is connected with described Leonardo da Vinci's processor, VGA output interface, UART interface, SD clamping mouth and at least one usb host interface, external memory storage; Also comprise the GPS module and the Big Dipper module that are connected communication by described UART interface with described Leonardo da Vinci's processor.
The embedded plate of described Big Dipper GPS two location multimedia also comprises a handwriting pad, is connected communication by a described usb host interface with described Leonardo da Vinci's processor.
Described external memory storage comprises NAND FLASH external memory storer and sdram memory storer.
Leonardo da Vinci's processor that the utility model is selected for use is owing to merged the advantage of DSP and arm processor, can either move various operating systems, bigger addressing space is arranged, abundant external interface is arranged, has stronger digital signal processing capability again, like this than placing two processors at the hardware integrated circuit board separately, area and the cost that comes the mode of interactive information efficient more, saved circuit board by external memory storage then.
Description of drawings
Figure 1 shows that the structural representation of the embedded plate of Big Dipper GPS two location multimedia that the utility model provides.
Embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with accompanying drawing, the utility model is further elaborated.
Referring to Fig. 1, the figure shows the two structures of locating the embedded plate of multimedia of a kind of Big Dipper GPS that the utility model provides.For convenience of explanation, only show the relevant part of the utility model.
The embedded plate of a kind of Big Dipper GPS two location multimedia comprises Leonardo da Vinci's processor, power module and the analog video input interface that is connected with described Leonardo da Vinci's processor, VGA output interface, UART interface, SD clamping mouth and at least one usb host interface, external memory storage; The GPS module and the Big Dipper locating module that are connected communication by described UART interface with described Leonardo da Vinci's processor.
The embedded plate of described Big Dipper GPS two location multimedia comprises a handwriting pad, is connected communication by a described usb host interface with described Leonardo da Vinci's processor.
Described external memory storage comprises NAND FLASH external memory storer and sdram memory storer.
Among the utility model embodiment, Leonardo da Vinci's processor adopting DM3730, this processor is dual core processor, and integrated 1GHz ARM Cortex-A8 nuclear (processor frequencies can support 300,600,800MHz) and 800MHz TMS320C64x+DSP examine (processor frequencies can support 250,520,660MHz).Choosing of different operating frequency can obtain a balance between power consumption requirement and arithmetic capability.
Described external memory storage is configured to the DDR SDRAM of a slice 512M byte and the NAND FLASH of a slice 512M byte.SDRAM is as the internal memory of system, and max cap. can expand to the 1G byte, can satisfy the requirement of operating system, image processing program.NAND FLASH is used for solidifying boot, operating system and user application as the external memory of system.
Leonardo da Vinci's processor can directly be supported standard P AL system (1.0Vpp, 75) the analog video input interface of 4 USB2.0 host interface, 4 UART interfaces, 1 SD clamping mouth, a special use and the video output interface of VGA vision signal.The usb host interface is used for the input of interface External memory equipment and handwriting pad.The UART interface is used for system debug, and the input of handwriting pad is imported, also be can be used for to the GPS module.SD clamping mouth is used for external SD card, supports 3.3V and 1.8V logic voltage.Video input interface can with the analog video interface seamless link, also can support CCD camera input.Video output interface can be supported 24 TFT LCD and VGA output.
An integrated high performance ARM nuclear and the powerful DSP of arithmetic capability examine in Leonardo da Vinci's processor piece of TI company, merged the advantage of DSP and arm processor like this, can either move various operating systems, bigger addressing space is arranged, abundant external interface is arranged, have stronger digital signal processing capability again; Leonardo da Vinci's processor has become two processor cores at chip integration, also disposed shared memory simultaneously with internuclear data interaction in making things convenient for two, like this than placing two processors at the hardware integrated circuit board separately, area and the cost that comes the mode of interactive information efficient more, saved circuit board by external memory storage then.
Major function of the present utility model is as follows:
(1) supports the input of standard P AL system (1.0Vpp, 75) analog video signal;
(2) outputting video signal: VGA;
(3) support the handwriting pad input, interface format is serial ports or USB;
(4) have SD card expansion slot;
(5) have 4 USB interface;
(6) have the Big Dipper, the two locating modules of GPS, interface format is serial ports;
(7) hardware platform is customizable, satisfies the requirement to multiple arithmetic capability and power consumption.
The above only is preferred implementation of the present utility model; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the utility model principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (3)
1. locate the embedded plates of multimedia for one kind Big Dipper GPS pair, it is characterized in that, comprise Leonardo da Vinci's processor, power module and the analog video input interface that is connected with described Leonardo da Vinci's processor, VGA output interface, UART interface, SD clamping mouth and at least one usb host interface, external memory storage; Also comprise the GPS module and the Big Dipper module that are connected communication by described UART interface with described Leonardo da Vinci's processor.
2. according to the embedded plate of the described Big Dipper GPS of claim 1 two location multimedia, it is characterized in that, comprise a handwriting pad, be connected communication by a described usb host interface with described Leonardo da Vinci's processor.
3. according to claim 1 or the embedded plate of 2 described Big Dipper GPS two location multimedia, it is characterized in that described external memory storage comprises NAND FLASH external memory storer and sdram memory storer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320103152 CN203133281U (en) | 2013-03-07 | 2013-03-07 | Beidou satellite and GPS double-positioning multimedia embedded plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320103152 CN203133281U (en) | 2013-03-07 | 2013-03-07 | Beidou satellite and GPS double-positioning multimedia embedded plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203133281U true CN203133281U (en) | 2013-08-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320103152 Expired - Lifetime CN203133281U (en) | 2013-03-07 | 2013-03-07 | Beidou satellite and GPS double-positioning multimedia embedded plate |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106248040A (en) * | 2016-08-02 | 2016-12-21 | 芜湖航飞科技股份有限公司 | A kind of farmland area measurement apparatus based on Big Dipper GPS dual-mode location |
-
2013
- 2013-03-07 CN CN 201320103152 patent/CN203133281U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106248040A (en) * | 2016-08-02 | 2016-12-21 | 芜湖航飞科技股份有限公司 | A kind of farmland area measurement apparatus based on Big Dipper GPS dual-mode location |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130814 |