CN204631945U - Based on embedded quick cloud data maker - Google Patents
Based on embedded quick cloud data maker Download PDFInfo
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- CN204631945U CN204631945U CN201520387605.0U CN201520387605U CN204631945U CN 204631945 U CN204631945 U CN 204631945U CN 201520387605 U CN201520387605 U CN 201520387605U CN 204631945 U CN204631945 U CN 204631945U
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- cloud data
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- fpga
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Abstract
A kind of based on embedded quick cloud data maker.The domestic company not developing special cloud data generating chip for generating some cloud fast in the measurement of application sinusoidal grating projection three-dimensional, apply current embedded technology, new technology platform designing based on embedded quick cloud data maker, is be a beneficial complement to original implementation method.A kind of based on embedded quick cloud data maker, its composition comprises: housing, housing (1) inside is provided with sinusoidal grating structured light maker, structured light maker (2) is connected with USB interface (3), USB interface is connected with D/A chip (4), described D/A chip and FPGA(5) be connected, FPGA is connected with random access memory (8), cmos imaging device (9) and ethernet PHY chip (6), and ethernet PHY is connected with RJ45 interface (7).The utility model is used for based on embedded quick cloud data maker.
Description
technical field:
the utility model relates to a kind of based on embedded quick cloud data maker.
background technology:
high performance float-point arithmetic element is the vitals in modern digital signal processor, has been the key point of high-performance Real-time digital signal processing and image procossing, and its performance quality directly has influence on Embedded floating-point processing power.The hot issue that the high performance computation demand improved constantly makes the Design and implementation of high performance float-point arithmetic element remain current.
along with the progress of technology, the especially fast development of electronic technology and computer technology, " Digital Trend Existence " has been not only a slogan, but comes true.People often need the steric information promptly obtaining body surface, are converted into the data calculating function and directly process.Industry member requires the three-dimensional coordinate measuring body surface rapidly, needs to obtain a large amount of three-dimensional datas fast in the research of Three-dimension object recognition, and these are all faced with how to obtain three-dimensional information data.When generating object three dimensional point cloud, its floating-point operation amount is calculated amount the best part in whole computation process, what the process for cloud data had starts the powerful arithmetic capability utilizing GPU, although function admirable, but system complex, volume are excessive, be not suitable for applying in embedded systems, so the feature generated for the three-dimensional point cloud of phase-shifting method, realize Float Point Unit in embedded systems, have its distinctive advantage.
summary of the invention:
the purpose of this utility model is to provide a kind of based on Embedded Quick-Point cloud Data Generator.
above-mentioned object is realized by following technical scheme:
a kind of based on embedded quick cloud data maker, its composition comprises: housing, described enclosure interior is provided with sinusoidal grating structured light maker, described structured light maker is connected with USB interface, USB interface is connected with D/A chip, described D/A chip is connected with FPGA, and described FPGA is connected with random access memory, cmos imaging device and ethernet PHY chip, and ethernet PHY is connected with RJ45 interface.
described based on embedded quick cloud data maker, described FPGA device inside comprises D/A control circuit, data bus, ram controller, ethernet controller, cmos imaging acquisition control circuit and Float Point Unit, and described data bus is connected with described random access memory, D/A chip and ethernet PHY chip.
the beneficial effects of the utility model:
1. the utility model gathers and data rate faster in order to reach, and the bus of the FPGA device of employing directly links with D/A, cmos imaging device, ethernet PHY and random access memory, improves reaction velocity and the adaptability to changes of this product.
the utility model adopts the embedded chip FPGA with concurrent operation processing power to be that master controller is to improve image acquisition, data transmission and arithmetic speed.
the utility model have employed embedded chip FPGA to complete the generation of sinusoidal structured gratings strips line, exported by USB interface, CMOS camera is utilized directly to gather image, the structured light that each four-step phase-shifting projects, four width images after gathering store in random access memory, and four image intensity value of the same coordinate in four width images are input to the cloud data with floating-point operation ability and generate arithmetic element generation cloud data; The computing formula of whole some cloud generation is fairly simple, and each point processing all uses same mode, and utilize in FPGA executed in parallel characteristic, its arithmetic speed has very large advantage; Whole measuring system volume can be made little, low in energy consumption, grating fringe and image capturing system be incorporated into one and transmitted by Ethernet interface, the great flexibility of system can also be obtained in hardware one-level, the overall development of reverse-engineering is had a very big significance.
accompanying drawing illustrates:
accompanying drawing 1 is structural representation of the present utility model.
accompanying drawing 2 is CMOS acquisition interface circuit theory diagrams of the present utility model.
accompanying drawing 3 is D/A change-over circuit schematic diagrams of the present utility model.
accompanying drawing 4 is circuit theory diagrams of ethernet PHY of the present utility model transmission.
embodiment:
embodiment 1:
a kind of based on embedded quick cloud data maker, its composition comprises: housing, described housing 1 inside is provided with sinusoidal grating structured light maker, described structured light maker 2 is connected with USB interface 3, USB interface is connected with D/A chip 4, described D/A chip is connected with FPGA 5, and described FPGA is connected with random access memory 8, cmos imaging device 9 and ethernet PHY chip 6, and ethernet PHY is connected with RJ45 interface 7.
embodiment 2:
according to embodiment 1 based on embedded quick cloud data maker, described FPGA device inside comprises D/A control circuit, data bus, ram controller, ethernet controller, cmos imaging acquisition control circuit and Float Point Unit, and described data bus is connected with described random access memory, D/A chip and ethernet PHY chip.
embodiment 3:
according to embodiment 1 or 2 based on embedded quick cloud data maker, described based on embedded quick cloud data maker, with embedded chip FPGA for optimized integration, use the Float Point Unit of wallace tree, complete and fast processing generation cloud data is carried out to the data in three-dimensional measurement; Described floating-point multiplication unit consists of the following components:
(1) subtraction of integer module, carries out initial pictures gray-scale value and subtracts each other.
integer conversion floating-point module.
floating-point division module, application Newton-Raphson iterative algorithm completes division arithmetic, and iterative part uses the floating-point multiplier of Wallace tree structure.
arc tangent floating-point operation unit, completes device computing anyway in series expansion mode, draws phase value, be cloud data.
Claims (2)
1. one kind based on embedded quick cloud data maker, its composition comprises: housing, it is characterized in that: described enclosure interior is provided with sinusoidal grating structured light maker, described structured light maker is connected with USB interface, USB interface is connected with D/A chip, described D/A chip is connected with FPGA, and described FPGA is connected with random access memory, cmos imaging device and ethernet PHY chip, and ethernet PHY is connected with RJ45 interface.
2. according to claim 1 based on embedded quick cloud data maker, it is characterized in that: described FPGA device inside comprises D/A control circuit, data bus, ram controller, ethernet controller, cmos imaging acquisition control circuit and Float Point Unit, described data bus is connected with described random access memory, D/A chip and ethernet PHY chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520387605.0U CN204631945U (en) | 2015-06-08 | 2015-06-08 | Based on embedded quick cloud data maker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520387605.0U CN204631945U (en) | 2015-06-08 | 2015-06-08 | Based on embedded quick cloud data maker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204631945U true CN204631945U (en) | 2015-09-09 |
Family
ID=54050950
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520387605.0U Expired - Fee Related CN204631945U (en) | 2015-06-08 | 2015-06-08 | Based on embedded quick cloud data maker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204631945U (en) |
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2015
- 2015-06-08 CN CN201520387605.0U patent/CN204631945U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150909 Termination date: 20170608 |