CN103142209B - Portable vision tester - Google Patents
Portable vision tester Download PDFInfo
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- CN103142209B CN103142209B CN201310078514.4A CN201310078514A CN103142209B CN 103142209 B CN103142209 B CN 103142209B CN 201310078514 A CN201310078514 A CN 201310078514A CN 103142209 B CN103142209 B CN 103142209B
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Abstract
The invention discloses Portable vision tester, the remote controller comprising main body and be connected with this subject radio, main body comprises housing and is located at the main control circuit assembly in housing; Main control circuit assembly comprises that ARM built-in industrial controls mainboard, the LCD that LCD interface changed into USB interface turns VGA module board, infrared communication module and power button circuit module, and LCD turns VGA module board, infrared communication module and power button circuit module and controls mainboard with ARM built-in industrial respectively and be connected.The present invention adopts above structure, can be connected to any LCDs of being furnished with USB interface, thus visual acuity chart is outputted to LCDs, especially supports the display of 17 cun, 19 cun and 19 cun widescreens.
Description
Technical field
The present invention relates to vision testing device field, be specifically related to Portable vision tester.
Background technology
Existing liquid crystal Portable vision tester, is mainly made up of a main frame and remote controller.LCDs and infrared remote control Receiver is provided with on main frame, if internal main is based on PC (personalcomputer, personal computer) the mainboard electronic module of framework, as CPU(central processing unit, CentralProcessingUnit), the electronic module such as hard disk, internal memory, by DVI interface (DigitalVideoInterface, digital visual interface) or HDMI (HighDefinitionMultimediaInterface, HDMI) be connected with liquid crystal display screen.User can control to export the eyesight testing that sighting target figure carries out ophthalmology by remote controller.
Existing liquid crystal Portable vision tester Problems existing and shortcoming:
1, hardware easily damages, and be difficult to maintenance, service life is short; Because main frame uses PC framework, frequently in moving process, easily there was a mechanical failure or interface loosens to be connected to electronic components such as hard disk, the internal memory etc. of mainboard, causes main frame normally to use.
2, the main frame volume incorporating LCD screen is bigger than normal, and heavier-weight is inconvenient to move.
3, LCD screen size is fixed, and cannot change.
Summary of the invention
The object of the invention is to disclose Portable vision tester, solve hardware and easily damage, be difficult to maintenance, service life is short, and volume is bigger than normal, heavier-weight, is inconvenient to move, the problem that screen size cannot change.
For achieving the above object, the present invention adopts following technical scheme:
Portable vision tester, the remote controller comprising main body and be connected with this subject radio, main body comprises housing and is located at the main control circuit assembly in housing; Main control circuit assembly comprises that ARM built-in industrial controls mainboard, the LCD that LCD interface changed into USB interface turns VGA module board, infrared communication module and power button circuit module, and LCD turns VGA module board, infrared communication module and power button circuit module and is connected ARM built-in industrial respectively and controls mainboard and connect.
Further, described ARM built-in industrial control mainboard is provided with power interface, LCD interface, infrared module interface and the switch interface for connecting power supply; Described LCD turns VGA module board and is connected with LCD interface, and described infrared communication module is connected with infrared module interface, and described power button circuit module is connected with switch interface.
Further, described infrared module interface 14 is universal serial bus standard USB interface; Described burning interface adopts the interface meeting rs-232 standard, and burning interface is used for being connected with PC, carries out transmission data and interactive operation.
Further, described ARM built-in industrial controls mainboard and is also provided with system reset circuit, memory module, burning interface, microprocessor, Nor/Nand selection circuit, encryption chip and power circuit control module for storage program and picture.
Further, described memory module comprises Nand-flash internal memory and/or synchronous DRAM SDRAM.
Further, described system reset circuit adopts and monitors reset chip MAX8115; Described microprocessor adopts embedded S3C2440 microprocessor; Described encryption chip adopts IC bus IIC interface.
Further, described ARM built-in industrial control mainboard is also provided with for showing the power supply indicator, the RTC real-time clock reserve battery power supply circuits that whether connect power supply.
Further, described remote controller comprises remote controller casing and is located at the remote controller control circuit in this remote controller casing; Remote controller casing is provided with remote controller switch and remote controller infrared receiving terminal, and remote controller switch is connected remote controller control circuit respectively with remote controller infrared receiving terminal; Remote controller control circuit is connected and composed by single-chip microcomputer, display driver circuit, key circuit and wireless communication module.
Further, described main body is rectangular structure, and length is less than 24cm, and width is less than 17cm, is highly less than 7cm.
Compared with prior art, beneficial effect of the present invention is as follows:
1, the present invention adopts above structure, can be connected to any LCDs of being furnished with USB interface, thus just visual acuity chart outputs to LCDs, especially supports the display of 17 cun, 19 cun and 19 cun widescreens.
2, main frame and display screen separate, make the present embodiment volume little, lightweight.
3, host computer control circuit height is integrated, can service life long, do not have mechanical hard disk etc. to hold flimsy module.
4, the sighting target display controlled on liquid crystal display screen is used a teleswitch; Can operating distance be 1 meter-10 meters, wherein eyesight testing scope be 1-6.3 rice.
5, totally 8 kinds of sighting target figure, for different situations for you provide multiple choices.
6, optometrist can carry out optometry according to the program set in instrument.
7, on standard visual acuity chart basis, only can show single file or single sighting target, facilitate optometrist Remote to instruct test.
8, the inspection of achromatopsia/weak can be carried out, in instrument, store 32 achromatopsia/color weakness pictures, achromatopsia/color weakness test can be carried out.
9, adopt red green point of vision method to replace partially visiting mark, realize the complete visual function evaluation of eyes.
10, complete inspection sighting target basis and rich and varied display mode, meet the inspection of all visual function.
11, sighting target switching completes instantaneously, display flicker free.
12, any LCDs of being furnished with USB interface can be connected to; Volume is little, lightweight; Host computer control circuit height is integrated, without any mechanical part, can service life long.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme in the embodiment of the present invention, below the accompanying drawing used required in describing embodiment is briefly described.Apparently, the accompanying drawing in the following describes is only some embodiments of the present invention.For those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the internal structure schematic diagram of main body in Portable vision tester embodiment of the present invention;
Fig. 2 is the schematic diagram that in Fig. 1, ARM built-in industrial controls mainboard;
In figure, 1-ARM built-in industrial controls mainboard; 11-power interface; 12-LCD interface; 13-power supply indicator; 14-infrared module interface; 15-switch interface; 16-system reset circuit; 17-Nand-flash internal memory; 18-SDRAM; 19-burning interface; 110-microprocessor; 111-RTC real-time clock reserve battery power supply circuits; 112-Nor/Nand selection circuit; 113-encryption chip; 114-power circuit control module; 2-LCD turns VGA module board; 3-infrared communication module; 4-power button circuit module; 5-housing; 6-attaching plug.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described.Obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.
Portable vision tester, the remote controller comprising main body and be connected with this subject radio, main body comprises housing and is located at the main control circuit assembly in housing; Main control circuit assembly comprises that ARM built-in industrial controls mainboard, the LCD that LCD interface changed into USB interface turns VGA module board, infrared communication module and power button circuit module, and LCD turns VGA module board, infrared communication module and power button circuit module and is connected ARM built-in industrial respectively and controls mainboard.
Portable vision tester as shown in Fig. 1 to Fig. 2 embodiment, the remote controller comprising main body and be connected with this subject radio, the main control circuit assembly that main body comprises housing 5 and is located in housing 5; Main control circuit assembly comprises that ARM built-in industrial controls mainboard 1, the LCD that LCD interface changed into USB interface turns VGA module board 2, infrared communication module 3 and power button circuit module 4, LCD and turns VGA module board 2, infrared communication module 3 and power button circuit module 4 and is connected ARM built-in industrial control mainboard 1 respectively.
In the present embodiment, ARM built-in industrial control mainboard 1 be provided with power interface 11 for connecting power supply, LCD interface 12, for showing the power supply indicator 13, infrared module interface 14, switch interface 15, system reset circuit 16, memory module, burning interface 19, microprocessor 110, RTC real-time clock reserve battery power supply circuits 111, Nor/Nand selection circuit 112, encryption chip 113 and the power circuit control module 114 for storage program and picture that whether connect power supply.LCD turns VGA module board 2 and is connected with LCD interface, and described infrared communication module is connected with infrared module interface, and described power button circuit module is connected with switch interface.Memory module comprises Nand-flash internal memory 17 and/or synchronous DRAM SDRAM18.
Power interface 11 is for being connected at the attaching plug 6 in housing 5, and the present embodiment adopts 5V power voltage supply.
LCD interface 12 turns VGA module board 2 for connecting LCD.LCD turns VGA module board 2, by the process chip of himself, video signal is outputted to USB interface, and USB interface is the most general interface of current display screen, and the present embodiment can be made to be connected to the liquid crystal display of USB interface.
Power supply indicator 13 is that red LED will be lighted after the present embodiment normal boot-strap.
Infrared module interface 14 uses universal serial bus standard USB interface.USB interface can be used for connecting nearly 127 kinds of peripheral hardwares, as mouse, modem and keyboard etc.Infrared module interface 14 is used for connecting infrared communication module 3, and infrared communication module 3 is for receiving remote controller signal.
Switch interface 15 is for connecting power button circuit module 4.Length presses power button 1-2 time second, can start or close instrument.
System reset circuit 16 adopts special system monitoring reset chip MAX8115, realizes the monitoring to supply voltage and Manual reset operation.Once system power supply is lower than the threshold values (such as 2.93V) of system reset, reset chip MAX8115 will reset to system.
Burning interface 19 adopts rs-232 standard, and the present embodiment is connected with PC by this interface, carries out transmission data and interactive operation.When using this interface, one end of Serial Port Line is connected to this interface, and one end is connected to the serial interface of PC in addition.Thus to Nand-flash internal memory 17 and SDRAM18 Input Software program and/or picture.
Microprocessor 110 adopts embedded S3C2440 microprocessor, embedded S3C2440 microprocessor is 16/32 risc microcontroller that Samsung releases, for handheld device and general type application provide the solution of low price, low-power consumption, high performance mini microcontroller.In order to reduce total system cost, S3C2440A provides the kernel that abundant internal unit S3C2440A have employed ARM920t, the CMOS standard macroelement of 0.13um and memory cell.Its low-power consumption, simply, graceful, and full Static Design is particularly suitable for the application to cost and power sensitive.
RTC real-time clock reserve battery power supply circuits 111 are the stand-by power supply of the present embodiment.In order to the status data of keeping system, after system cut-off, stand-by power supply must be used to power.
Nor/Nand selection circuit 112, makes ARM built-in industrial control mainboard 1 and can be divided into from NorFlash startup or start two types from NandFlash.
Encryption chip 113 adopts IIC interface (IIC:Inter-IntegratedCircuit, IC bus).IIC is a kind of multidirectional control bus, under multiple chip can be connected to same bus structure; Each chip can, as the control source of implementation data transmission, adopt the mode of IIC interface to simplify signal transmission bus simultaneously.
Further, remote controller comprises remote controller casing and is located at the remote controller control circuit in this remote controller casing.Remote controller casing is provided with remote controller switch and remote controller infrared receiving terminal, and remote controller switch is connected remote controller control circuit respectively with remote controller infrared receiving terminal; Remote controller control circuit is connected and composed by single-chip microcomputer, display driver circuit, key circuit and wireless communication module etc.
In the present embodiment, housing 5 is in rectangular structure, and length is less than 24cm, and width is less than 17cm, is highly less than 7cm; Long-pending little, be easy to carry.
Other structure of the present embodiment Portable vision tester is see prior art.
The present embodiment adopts above structure, and tool has the following advantages:
1, any LCDs of being furnished with USB interface can be connected to, thus just visual acuity chart outputs to LCDs, especially support the display of support 17 cun, 19 cun and 19 cun widescreens.
2, main frame and display screen separate, make the present embodiment volume little, lightweight.
3, host computer control circuit height is integrated, can service life long, do not have mechanical hard disk etc. to hold flimsy module.
4, remote controller controls the sighting target display on liquid crystal display screen; Can operating distance be 1 meter-10 meters, wherein eyesight testing scope be 1-6.3 rice.
5, totally 8 kinds of vision marks, provide convenience for comprehensive vision detects.
6, optometry can be carried out according to the program set in instrument.
7, the visual acuity chart of identical vision can be switched at random by remote control system, can prevent because check object remembers the error result that visual acuity chart causes.
8, the inspection of achromatopsia/weak can be carried out, in instrument, store 32 achromatopsia/color weakness pictures, achromatopsia/color weakness test can be carried out.
9, adopt red green point of vision method to replace partially visiting mark, realize the complete visual function evaluation of eyes.
10, complete inspection sighting target basis and rich and varied display mode, meet the inspection of all visual function.
11, sighting target switching completes instantaneously, display flicker free.
12, any LCDs of being furnished with USB interface can be connected to; Volume is little, lightweight; Host computer control circuit height is integrated, without any mechanical part, can service life long.
The present invention is not limited to above-mentioned embodiment, if do not depart from the spirit and scope of the present invention to various change of the present invention or modification; If these are changed and modification belongs within claim of the present invention and equivalent technologies scope, then the present invention is also intended to comprise these change and modification.
Claims (1)
1. Portable vision tester, is characterized in that: the remote controller comprising main body and be connected with this subject radio, and main body comprises housing and is located at the main control circuit assembly in housing; Main control circuit assembly comprises that ARM built-in industrial controls mainboard, the LCD that LCD interface changed into USB interface turns VGA module board, infrared communication module and power button circuit module, and LCD turns VGA module board, infrared communication module and power button circuit module and is connected ARM built-in industrial respectively and controls mainboard; Described ARM built-in industrial control mainboard is provided with power interface, LCD interface, infrared module interface and switch interface for connecting power supply; Described LCD turns VGA module board and is connected with LCD interface, and described infrared communication module is connected with infrared module interface, and described power button circuit module is connected with switch interface; Described ARM built-in industrial controls mainboard and is also provided with system reset circuit, memory module, burning interface, microprocessor, Nor/Nand selection circuit, encryption chip and power circuit control module for storage program and picture;
Described infrared module interface is universal serial bus standard USB interface; Described burning interface adopts the interface meeting rs-232 standard, and burning interface is used for being connected with PC, carries out transmission data and interactive operation; Described memory module comprises Nand-flash internal memory and/or synchronous DRAM SDRAM; Described system reset circuit adopts and monitors reset chip MAX8115; Described microprocessor adopts embedded S3C2440 microprocessor; Described encryption chip adopts IC bus IIC interface; Described ARM built-in industrial controls mainboard and is also provided with for showing the power supply indicator, the RTC real-time clock reserve battery power supply circuits that whether connect power supply; Described remote controller comprises remote controller casing and is located at the remote controller control circuit in this remote controller casing; Remote controller casing is provided with remote controller switch and remote controller infrared receiving terminal, and remote controller switch is connected remote controller control circuit respectively with remote controller infrared receiving terminal; Remote controller control circuit is connected and composed by single-chip microcomputer, display driver circuit, key circuit and wireless communication module; Described main body is rectangular structure, and length is less than 24cm, and width is less than 17cm, is highly less than 7cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310078514.4A CN103142209B (en) | 2013-03-12 | 2013-03-12 | Portable vision tester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310078514.4A CN103142209B (en) | 2013-03-12 | 2013-03-12 | Portable vision tester |
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| CN103142209A CN103142209A (en) | 2013-06-12 |
| CN103142209B true CN103142209B (en) | 2015-08-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310078514.4A Expired - Fee Related CN103142209B (en) | 2013-03-12 | 2013-03-12 | Portable vision tester |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106618472B (en) * | 2015-10-29 | 2018-08-17 | 上海美沃精密仪器有限公司 | Modular electronic eyesight tester |
| CN106901685B (en) * | 2017-03-06 | 2019-01-22 | 云视野（北京）科技有限公司 | A kind of method, apparatus and electronic equipment obtaining diopter |
| CN109431447A (en) * | 2018-12-28 | 2019-03-08 | 重庆远视科技有限公司 | It is a kind of for showing the Vission detector of eyesight detection image |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2063798U (en) * | 1989-07-10 | 1990-10-17 | 无锡市电子技术应用研究所 | Life condition monitor |
| CN102129524A (en) * | 2011-03-23 | 2011-07-20 | 中国科学院深圳先进技术研究院 | Design and verification platform of medical electronic chip |
| CN202036199U (en) * | 2011-02-24 | 2011-11-16 | 华东师范大学 | Self-service intelligent vision test system |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110145071A1 (en) * | 2009-12-15 | 2011-06-16 | Naidu Kshirsagar Cj | Domestic Billboard Apparatus and Communication Method Using the Same |
-
2013
- 2013-03-12 CN CN201310078514.4A patent/CN103142209B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2063798U (en) * | 1989-07-10 | 1990-10-17 | 无锡市电子技术应用研究所 | Life condition monitor |
| CN202036199U (en) * | 2011-02-24 | 2011-11-16 | 华东师范大学 | Self-service intelligent vision test system |
| CN102129524A (en) * | 2011-03-23 | 2011-07-20 | 中国科学院深圳先进技术研究院 | Design and verification platform of medical electronic chip |
Non-Patent Citations (2)
| Title |
|---|
| 基于ARM处理器S3C2440的VGA显示技术;方鹏等;《电子设计工程》;20110630;第19卷(第11期);全文 * |
| 基于ARM嵌入式系统的VGA接口的设计;李维;《大连海事大学硕士学位论文》;20120903;正文第20页第1-15行，第21页第1-5行，正文第24页第2行-第25页第13行，第26页第1-3行 * |
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Granted publication date: 20150812 |