CN201612595U - Multifunction conversion-type eyesight checker - Google Patents
Multifunction conversion-type eyesight checker Download PDFInfo
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- CN201612595U CN201612595U CN2010201055140U CN201020105514U CN201612595U CN 201612595 U CN201612595 U CN 201612595U CN 2010201055140 U CN2010201055140 U CN 2010201055140U CN 201020105514 U CN201020105514 U CN 201020105514U CN 201612595 U CN201612595 U CN 201612595U
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Abstract
The utility model provides a multifunctional conversion-type eyesight checker. A micro-processor CPU of a central processing unit is connected with a memory, various function conversion modules, a switch circuit and a signal processing circuit respectively by a data bus; the various function conversion module is connected with the signal processing circuit; the signal processing circuit is connected with a liquid crystal display; the signal output terminal of the switch circuit is connected with a circuit shifting switch respectively; an infrared receiver is connected with the micro-processor CPU by a signal wire; one end of a charger of a charging work unit is connected with a power supply of 220V and one end of a voltage-stabilizing power supply; the other end of the voltage-stabilizing power supply is connected with an accumulator of 12V; the accumulator of 12V is connected with a converter and the circuit shifting switch respectively; one end of the converter is connected with an alternate current power supply of 220V and the other end thereof is connected with the other end of the voltage-stabilizing power supply and the switch circuit respectively. The device utilizes the computer digitalization to control the eyesight checking process, has the function of storing the electric energy, and has the advantages of stable and uniform distribution of light source of an eyesight chart, no existence of noise, and long service life.
Description
Technical field
This utility model relates to ophthalmology vision checkout gear, relates in particular to a kind ofly to utilize computer control vision testing process, and possesses the multifunctional converting type vision tester of store electrical energy.
Background technology
At present, aspect tool for detecting vision, domestic employing be E font visual acuity chart or visual acuity chart lamp box based on national standard; And external employing is letter C type visual acuity chart.Original printing-type E font and letter C type visual acuity chart and visual acuity chart lamp box, owing to exist the printing house printing lack of standardization, quality is nonstandard, scintillation often appears in built-in in addition lamp tube light source instability; In case and after external printing panel occurring for a long time cut is arranged service time, displaying symbol will be unclear, built-in fluorescent tube brightness deterioration, commutator is aging to produce problem such as noise.And visual acuity chart can only be checked a certain fixedly crowd, the examination scope limitation; In the inspection often the hand-held indicating bar of detection person indicate, when the examinee more for a long time, detection person will be tired easily, produces the detection error.As seen, many uncontrollable artificial detection errors are arranged in above-mentioned testing process, as indicate indeterminately, detection time is nonstandard, and makes the not enough objective reality of vision testing result.Also there is display screen to add the eyesight detecting instrument of remote control now on the market, but has the single deficiency of visual acuity chart again.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, and a kind of high-resolution LCD backlight plate and new light path conduction design system of having adopted is provided, in conjunction with the multifunctional converting type vision tester of high-frequency convertor technology.This device has the visual acuity chart light stability, is evenly distributed, and noiselessness pollutes, the characteristics of long perfomance life.
The concrete scheme that this utility model solves the prior art problem is: a kind of multifunctional converting type vision tester comprises central control unit, charging working cell, Infrared Remote-Control Sending and Receiving unit and visual acuity chart display device; Central control unit includes microprocessor CPU (1), memorizer (2), various function modular converter (3), commutation circuit (4), signal processing circuit (5), infrared remote-control emitter (13), infrared remote receiver (14); Charging work unit pack has been drawn together commutation circuit (7), circuit changing switch (8), charger (9), 12V accumulator (10), transducer (11), regulated power supply (12); It is characterized in that: described microprocessor CPU (1) is connected with memorizer (2), various function modular converter (3), commutation circuit (4), signal processing circuit (5) respectively by data/address bus, various function modular converters (3) link to each other with signal processing circuit (5), signal processing circuit (5) links to each other with liquid crystal display (6), and infrared remote receiver (14) is connected with microprocessor CPU (1) through holding wire; One end of described charger (9) connects an end of power supply～220V and regulated power supply (12) thereof, the other end connects 12V accumulator (10), 12V accumulator (10) connects transducer (11) and circuit changing switch (8) respectively, one end of transducer (11) connects alternating current power supply～220V, and the other end is connected with the other end and the commutation circuit (4) thereof of regulated power supply (12) respectively.
The signal output part of described commutation circuit (4) and commutation circuit (7) is connected with set circuit changing switch (8) respectively.
Described microprocessor CPU (1) stores software program and the circuit control system of finishing various functions, and software system includes multiple function sighting target, and various trace routines and hands section are set in host circuit control; System carries out the conversion of various functions under the control of microprocessor CPU (1) is carried out, and multiple sighting target is presented at respectively on the LCDs (6) by signal processing circuit and demonstration auxiliary circuit.
Described memorizer (2) carries out communication by spi bus and microprocessor CPU (1), is used to store various sighting target view data, input data during detection and finish procedure stores and the address assignment task.
Described various function modular converters (3) comprise the remote switch function, and remote control receives the control function, utilizes the infrared remote-control emitter function to realize any switching of various sighting targets.
The signal input output end of described commutation circuit (4) is connected with described microprocessor CPU (1) by holding wire.
The described infrared signal of being sent by infrared remote-control emitter (13) receives by infrared remote receiver (14), and remote signal is passed to microprocessor CPU (1).
The described Menu key that is provided with in remote controller can be realized the conversion of single letter or sighting target size direction.
Described both sides in LCDs (6) are provided with rechargeable battery plate (16); On the screen inner bottom plating of LCDs (6), be provided with USB interface (18), on and off switch (19), rechargeable battery power interface (20), power line socket (21).
This utility model compared with prior art advantage is:
1, this device adopts microcomputerized control, and therefore simple to operation, detection speed is fast, reliable in quality, automaticity height;
2, this device adopts the Infrared Remote-Control Sending and Receiving function, has expanded the vision detection range, can satisfy the requirement that various visions detect, and can also can carry out examination of visual acuity to special population such as deaf mute, can eliminate the communication obstacle;
3, this device has reached the visual acuity chart light stability, and brightness is not glimmered, and it is clear to look table, and indication is clear and definite, and noiselessness pollutes, the purpose of long perfomance life;
4, this device can reduce labor intensity greatly, reduced because of recite, the occasionality of vision such as conjecture in detecting.
Description of drawings
Fig. 1 is that this utility model circuit structure connects block diagram
Fig. 2 is this utility model remote-controller function key distribution schematic diagram
Fig. 3 is this utility model display screen structure connection diagram
Among the figure, 1-microprocessor CPU, 2-memorizer, the various function modular converters of 3-, 4-commutation circuit, 5-signal processing circuit and demonstration auxiliary circuit, 6-LCDs, 7-commutation circuit, 8-circuit changing switch, 9-charger, 10-12V accumulator, 11-transducer, 12-regulated power supply, 13-infrared remote-control emitter, 14-infrared remote receiver, 15-remote controller, 16-rechargeable battery plate, 17-infrared receiving window, 18-USB interface, 19-on and off switch, 20-rechargeable battery power interface, 21-supply socket;
The specific embodiment
The utility model is described in further detail below in conjunction with drawings and the specific embodiments;
With reference to Fig. 1, a kind of multifunctional converting type vision tester comprises central control unit, charging working cell, Infrared Remote-Control Sending and Receiving unit and visual acuity chart display device; Central control unit is made up of microprocessor CPU 1, memorizer 2, various function modular converter 3, commutation circuit 4, signal processing circuit 5, infrared remote-control emitter 13, infrared remote receiver 14; The charging working cell is made up of commutation circuit 7, circuit changing switch 8, charger 9,12V accumulator 10, transducer 11, regulated power supply 12; Described microprocessor CPU 1 is connected with memorizer 2, various function modular converter 3, commutation circuit 4, signal processing circuit 5 respectively by data/address bus, various function modular converters 3 link to each other with signal processing circuit 5, signal processing circuit 5 links to each other with liquid crystal display 6, and the signal output part of commutation circuit 4 and commutation circuit 7 is connected with set circuit changing switch 8 respectively.Infrared remote receiver 14 is connected with microprocessor CPU 1 through holding wire; One end of described charger 9 connects an end of alternating current power supply～220V and regulated power supply 12 thereof, its other end connects 12V accumulator 10,12V accumulator 10 connects transducer 11 and circuit changing switch 8 respectively, one end of transducer 11 connects alternating current power supply～220V, and its other end is connected with the other end and the commutation circuit 4 thereof of regulated power supply 12 respectively.
(adopt the chip of 8080 parallel bus modes, model is RabbitR5000@73.73MH to described microprocessor CPU 1
2Or the employing model is the BL5S220-51 single-chip microcomputer), CPU1 stores software program and the circuit control system of finishing various functions, and software system includes the multiple function sighting target that the international C type of A. standard visual acuity chart, the domestic E type of B. standard visual acuity chart, C. child figure visual acuity chart, D. standard are closely used visual acuity chart, E. achromatopsia examination of color sense collection of illustrative plates, F. macula lutea functional check (Amsler grid AMSLERGRID); Various trace routines and hands section are set in host circuit control; Under the control of microprocessor CPU 1 is carried out, carry out the conversion of various functions, and multiple sighting target is carried out the demonstration of corresponding sighting target by signal processing circuit and demonstration auxiliary circuit; And generate testing result automatically by somascope.
Described memorizer 2 (is selected miniSD for use
TMThe cardiGB model) carries out communication by spi bus and microprocessor CPU 1, be used to store various sighting target view data, input data during detection and finish procedure stores and the address assignment task.
Described various function modular converter 3 (adopting TOSHIBA.TMP47C433AN) comprises that remote switch function, remote control receive the control function, utilize the infrared remote-control emitter function to realize any switching of various sighting targets.
Its signal input output end of described commutation circuit 4 (adopting LM324 model chip) is connected with described microprocessor CPU 1 by holding wire.
The described infrared signal of being sent by infrared remote-control emitter 13 receives by infrared remote receiver 14, and remote signal is passed to microprocessor CPU 1.
Described charging working cell, can charge to storage battery in the use, with electrical power storage in the rechargeable battery plate that the liquid crystal display screen both sides are provided with, the Automatic Program locking charge function that when storage battery is full of electricity, is provided with in the system, can easily unidirectional current be utilized transducer to convert to～the 220V alternating current when running into when having a power failure, proceed work after the use reserve power that realizes automaticallying switch.
With reference to Fig. 2, remote control transmitter is provided with the infrared remote-control emitter end, is provided with Menu key in remote controller among the figure, includes function emission key, alternate function key, above-below direction transfer key and left and right directions transfer key.Can switch required certain visual acuity chart at choice menus key under the remote control,, also can in the visual acuity chart that has selected, select to occur some sighting targets, also can occur by full line such as (international standard visual acuity chart); Some letters appear in selection at random arbitrarily, and alphabetic flag is obvious, has substituted the history of former use indicating bar.Certain alphabetical opening direction can conversion reverses, the upset of full line subtitle position direction can be changed, eliminated such as in conscription health check-up work, because of vision below standard, and memorize mechanically the generation of visual acuity chart letter opening direction phenomenon, effectively raise the accuracy of examination of visual acuity, be particularly suitable for conscripting, the demand of colony's health check-up work such as civil servant, driver's application and university students's admission; Also can be used for professional testing agencies such as hospital, particularly change students in middle and primary schools faster, can carry out the detection of vision at any time, find visual problems at any time, so that measure is controlled in employing in time in advance for vision.Can under remote control, select the near vision table look-up, can reach nearly distant vision sync check.Can select to check achromatopsia and colour vision picture under remote control, normal pictures is switched arbitrarily, the convenient use.Can under remote control, select to be used to detect the Amsler grid (AMSLERGRID) of maculopathy and can find to have or not maculopathy early, in time treat oculopathy, particularly be fit to old people's examination of visual acuity.
With reference to Fig. 3, be provided with the rechargeable battery plate 16 of electrical power storage described in the figure in the both sides of LCDs 6; On the screen inner bottom plating of LCDs 6, be provided with usb 18, rechargeable battery power interface 20, on and off switch 19 and power line socket 21 thereof; Can be by the external power supply line for using in other small-sized ophthalmological instrument short time.
The work process of this utility model circuit control is: energized under the operation of remote controller, select to detect content by the remote controller menu, send instruction by infrared remote-control emitter, infrared remote control receiver is accepted to be transferred to microprocessor CPU after the instruction, send two instructions simultaneously by microprocessor CPU and various function conversion circuit again, article one, instruction sends signal processing circuit and display screen auxiliary circuit to, and another instruction sends circuit to automaticallyes switch, and repeated transmission is given LCDs.The circuit instruction of being sent by microprocessor CPU enters circuit changing switch, be converted to the power supply that the 12V unidirectional current offers complete machine by power regulator and use, entering charger by the 220V alternating current again, to become the 12V unidirectional current through the regulated power supply transducer be the storage battery plants charging.Sending the instruction automatic switch-over circuit when having a power failure when meeting under the control of microprocessor CPU, use the power work in the 12V accumulator in the complete machine, simultaneously, the 12V unidirectional current also can change the 220V alternating current into through transducer, can use for other auxiliary circuit.
Claims (9)
1. a multifunctional converting type vision tester comprises central control unit, charging working cell, Infrared Remote-Control Sending and Receiving unit and visual acuity chart display device; Central control unit includes microprocessor CPU (1), memorizer (2), various function modular converter (3), commutation circuit (4), signal processing circuit (5), infrared remote-control emitter (13), infrared remote receiver (14); Charging work unit pack has been drawn together commutation circuit (7), circuit changing switch (8), charger (9), 12V accumulator (10), transducer (11), regulated power supply (12); It is characterized in that: described microprocessor CPU (1) is connected with memorizer (2), various function modular converter (3), commutation circuit (4), signal processing circuit (5) respectively by data/address bus, various function modular converters (3) link to each other with signal processing circuit (5), signal processing circuit (5) links to each other with liquid crystal display (6), and infrared remote receiver (14) is connected with microprocessor CPU (1) through holding wire; One end of described charger (9) connects an end of power supply alternating current 220V and regulated power supply (12) thereof, the other end connects 12V accumulator (10), 12V accumulator (10) connects transducer (11) and circuit changing switch (8) respectively, one end of transducer (11) connects the power supply alternating current 220V, and the other end is connected with the other end and the commutation circuit (4) thereof of regulated power supply (12) respectively.
2. multifunctional converting type vision tester according to claim 1, the signal output part that it is characterized in that described commutation circuit (4) and commutation circuit (7) are connected with set circuit changing switch (8) respectively.
3. multifunctional converting type vision tester according to claim 1, it is characterized in that described microprocessor CPU (1) stores software program and the circuit control system of finishing various functions, software system includes multiple function sighting target, and various trace routines and means are set in host circuit control; System carries out the conversion of various functions under the control of microprocessor CPU (1) is carried out, and multiple sighting target is presented at respectively on the LCDs (6) by signal processing circuit and demonstration auxiliary circuit.
4. multifunctional converting type vision tester according to claim 1, it is characterized in that described memorizer (2) carries out communication by spi bus and microprocessor CPU (1), be used to store various sighting target view data, input data during detection and finish procedure stores and the address assignment task.
5. multifunctional converting type vision tester according to claim 1 is characterized in that described various function modular converters (3) comprise the remote switch function, and remote control receives the control function, utilizes the infrared remote-control emitter function to realize any switching of various sighting targets.
6. multifunctional converting type vision tester according to claim 1 is characterized in that its signal input output end of described commutation circuit (4) is connected with described microprocessor CPU (1) by holding wire.
7. multifunctional converting type vision tester according to claim 1 is characterized in that the described infrared signal of being sent by infrared remote-control emitter (13) receives by infrared remote receiver (14), and remote signal is passed to microprocessor CPU (1).
8. multifunctional converting type vision tester according to claim 1 is characterized in that the described Menu key that is provided with in remote controller, can realize the conversion of single letter or sighting target size direction.
9. multifunctional converting type vision tester according to claim 1 is characterized in that described both sides in LCDs (6) are provided with rechargeable battery plate (16); On the screen inner bottom plating of LCDs (6), be provided with USB interface (18), on and off switch (19), rechargeable battery power interface (20), power line socket (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201055140U CN201612595U (en) | 2010-01-29 | 2010-01-29 | Multifunction conversion-type eyesight checker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201055140U CN201612595U (en) | 2010-01-29 | 2010-01-29 | Multifunction conversion-type eyesight checker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201612595U true CN201612595U (en) | 2010-10-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201055140U Expired - Fee Related CN201612595U (en) | 2010-01-29 | 2010-01-29 | Multifunction conversion-type eyesight checker |
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| CN (1) | CN201612595U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102319054A (en) * | 2011-05-31 | 2012-01-18 | 北京航空航天大学 | Portable vision tester |
| CN105231987A (en) * | 2015-09-24 | 2016-01-13 | 泰山医学院 | Intelligent and multifunctional Chinese character visual chart |
| 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 |
| CN109497931A (en) * | 2018-12-28 | 2019-03-22 | 杭州精飞光学仪器制造有限公司 | A kind of eyesight measurement method, information control center equipment and computer storage medium |
-
2010
- 2010-01-29 CN CN2010201055140U patent/CN201612595U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102319054A (en) * | 2011-05-31 | 2012-01-18 | 北京航空航天大学 | Portable vision tester |
| CN102319054B (en) * | 2011-05-31 | 2013-08-07 | 北京航空航天大学 | Portable vision tester |
| CN105231987A (en) * | 2015-09-24 | 2016-01-13 | 泰山医学院 | Intelligent and multifunctional Chinese character visual chart |
| 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 |
| CN109497931A (en) * | 2018-12-28 | 2019-03-22 | 杭州精飞光学仪器制造有限公司 | A kind of eyesight measurement method, information control center equipment and computer storage medium |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101027 Termination date: 20110129 |