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Automatic focimeter control device and automatic focimeter system

A technology for controlling equipment and a focal meter, which is applied in the field of optometry, can solve problems such as unsatisfactory data processing speed, small system scalability, and low measurement accuracy, and achieve low cost, short design cycle, and fast processing of image data Effect

Inactive Publication Date: 2011-11-23
重庆远视科技有限公司
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  • Abstract
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  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The control core of the described automatic lens meter requires small volume and fast processing speed, so as to adapt to the needs of light and fast use. Most of the existing automatic lens meters use the control core composed of small MCU and DSP. Although the price is low, the data processing The speed is not ideal, the measurement accuracy is low, and the system expandability is small; while the embedded system using ARM meets the requirements of fast data processing, but the cost is high

Method used

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  • Automatic focimeter control device and automatic focimeter system
  • Automatic focimeter control device and automatic focimeter system

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Embodiment Construction

[0034] For reference and clarity, technical terms, abbreviations or abbreviations used hereinafter are summarized as follows:

[0035] FPGA: Field-Programmable Gate Array, Field Programmable Gate Array;

[0036] SPI: Serial Peripheral Interface, serial peripheral interface;

[0037] MCU: Micro Control Unit, micro control unit;

[0038] CPLD: Complex Programmable Logic Device, complex programmable logic device;

[0039] LVDS: A digital signal interface for video output, generally used in the industrial field or within the industry.

[0040] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creat...

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Abstract

The embodiment discloses an automatic focimeter control device and an automatic focimeter system. An FPGA (Field programmable gate array) used as a carrier is embedded in an SOPC (system on programmable chip); a soft-core NIOSII (national institute of open schooling II) is integrated in the SOPC and used for processing the image information collected by a CMOS (complementary metal oxide semiconductor) camera; the device has the functions of binarization, low-pass filtering, edge detection and the like for the image; and the device can be used for measuring the spherical diopter, cylinder diopter, cylinder lens shaft position angle and the like of the glasses lens fast and accurately; an MCU (micro control unit) is used as a coprocessor, thus the cost of the control device can be saved; the embedded SOPC can solve the SOC (system on chip) scheme, the design cycle is short, and the cost is low; and by combining the embedded soft-core NIOSII technology, the technical effects of fast processing the image data and saving the cost can be realized.

Description

technical field [0001] The invention relates to the technical field of optometry, more specifically, to an automatic focal meter control device and an automatic focal meter system. Background technique [0002] Automatic focal meter is a small semi-intelligent measuring instrument used for optometry and glasses. As an advanced measuring instrument, it has been widely used in the optical industry. [0003] The control core of the described automatic lens meter requires small volume and fast processing speed, so as to adapt to the needs of light and fast use. Most of the existing automatic lens meters use the control core composed of small MCU and DSP. Although the price is low, the data processing The speed is not ideal, the measurement accuracy is low, and the system expandability is small; while the embedded system using ARM meets the requirements of fast data processing, but the cost is high. Contents of the invention [0004] In view of this, the present invention prov...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M11/02H04N5/378
Inventor 胡冰
Owner 重庆远视科技有限公司
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