CN202051687U

CN202051687U - Electronic visual chart

Info

Publication number: CN202051687U
Application number: CN201120113948XU
Authority: CN
Inventors: 吕岗
Original assignee: Suzhou University
Current assignee: Suzhou University
Priority date: 2011-04-18
Filing date: 2011-04-18
Publication date: 2011-11-30
Anticipated expiration: 2021-04-18

Abstract

The utility model discloses an electronic visual chart, which comprises an electronic visual chart module and a console module. The electronic visual chart is characterized in that the electronic visual chart module comprises a first single chip microcomputer and the first single chip microcomputer is connected with a wireless transceiver module and a display module. The console module comprises a second single chip microcomputer and the second single chip microcomputer is connected with a wireless transceiver module, a function key input module, a display module, an ultrasonic ranging module and a voice prompt module. The electronic visual chart module is connected with the console module via the wireless transceiver module. According to the utility model, test symbols are displayed via the electronic visual chart module and symbol directions are inputted via the console module by a testee so as to test the visual condition of the testee. Meanwhile, the cheating problem during the visual test is effectively avoided. In addition, the electronic visual chart is convenient to carry about, which saves the manpower.

Description

A kind of electronics visual acuity chart

Technical field

This utility model relates to a kind of visual acuity chart, is specifically related to a kind of electronics visual acuity chart.

Background technology

At present, because the continuous increase of people's life and work pressure, usefulness is longer at the moment, and does not note eye hygiene, cause the problem of people's hypometropia more and more serious, thereby people needs regularly to carry out examination of visual acuity to hospital.Traditional examination of visual acuity all is by using test chart, test chart generally all is to be installed in the lamp box, the lamp box overall fixed is on wall, people are when testing eyesight, stand in outside the predefined inspection line, the illuminating lamp in the lamp box is opened, and there is the full-time doctor of inspection at lamp box side station, the inspection doctor is convenient to check that the doctor judges people's vision situation by the symbol on the baton indication test chart thereby people quote the sensing of symbol.

Though traditional test chart can detect people's vision situation, has following problem: first: fix because the symbol of test chart points to, when carrying out examination of visual acuity, point to cheating like this thereby those who are investigated pass through prior mnemonic symbol easily; Second: all need the full-time doctor of inspection during each examination of visual acuity and be responsible for checking and record, use comparatively inconvenience, and caused waste of manpower resource; The 3rd: test chart is installed in the lamp box, and the lamp box overall fixed causes carrying, carries inconvenience on wall.

Summary of the invention

This utility model purpose provides a kind of electronics visual acuity chart, by the improvement to structure, makes and practise fraud when the electronics visual acuity chart can effectively be avoided checking that it is also comparatively convenient that use is simultaneously carried, and saved manpower.

For achieving the above object, the technical solution adopted in the utility model is: a kind of electronics visual acuity chart, comprise an electronics visual acuity chart module and an operating board module, described electronics visual acuity chart module comprises first single-chip microcomputer, is connected with radio receiving transmitting module and display module with described first single-chip microcomputer; Described operating board module comprises second singlechip, described second singlechip is connected with radio receiving transmitting module, function key input module, display module, supersonic sounding module, voice cue module, and described electronics visual acuity chart module is connected through radio receiving transmitting module with described operating board module.

Further technical scheme also is connected with power supply with described single-chip microcomputer.

Further technical scheme, described second singlechip connects printer through USB interface.

Further technical scheme, described display module is a LED display.

This utility model operation principle: after the second singlechip energising, at first the supersonic sounding module by ultrasonic measurement operating board module to the distance of putting electronics visual acuity chart module, and with distance display on display module, if current distance is less than realizing setpoint distance, voice cue module is sent the not enough prompt tone of distance, while lock function key input module, when recording distance greater than setpoint distance, second singlechip sends the information of initialization success to first single-chip microcomputer by radio receiving transmitting module, after receiving the affirmation information that first single-chip microcomputer returns, voice cue module is sent the prompt tone that detects beginning, and unlocking function key input module, the display module that be connected with first single-chip microcomputer this moment demonstrates test symbol, and the testee points to by function key input module incoming symbol, points to and correctly then continues the remaining symbol of test, point to mistake until the testee, then displaying symbol again points to again, and continuous three mistakes are then checked end.

Because the technique scheme utilization, the advantage that this utility model compared with prior art has is:

1, since this utility model by electronics visual acuity chart module and operating board module are set, electronics visual acuity chart module shows test symbol, the testee utilizes operating board module incoming symbol to point to, judge the vision situation thereby be convenient to detect, thereby effectively solved the problem of passing through memory cheating in advance when detecting;

2, this utility model connects through radio receiving transmitting module between the two by electronics visual acuity chart module and operating board module are set respectively, and the lamp box type visual acuity chart is fixed in the setting of wall as compared with the past, and use is carried more convenient;

3, novel in use need not of this use aside detected and record as arrange sole duty to detect the doctor in the past, thereby saved manpower.

Description of drawings

Fig. 1 is the schematic diagram of this utility model embodiment one.

The specific embodiment

Below in conjunction with drawings and Examples this utility model is further described:

Embodiment one: referring to shown in Figure 1, a kind of electronics visual acuity chart comprises an electronics visual acuity chart module and an operating board module, and described electronics visual acuity chart module comprises first single-chip microcomputer, is connected with radio receiving transmitting module and display module with described first single-chip microcomputer; Described operating board module comprises second singlechip, described second singlechip is connected with radio receiving transmitting module, function key input module, display module, supersonic sounding module, voice cue module, described electronics visual acuity chart module is connected through radio receiving transmitting module with described operating board module, also be connected with power supply with described single-chip microcomputer, described second singlechip connects printer through USB interface, and described display module is a LED display.

This electronics visual acuity chart in use, after the second singlechip energising, at first by supersonic sounding module detecting operation platform module to the distance of putting electronics visual acuity chart module, and with distance display on LED display, if current distance is less than the distance of setting in advance (system default value is 5 meters, can revise default value by the function key input module), voice cue module is sent the not enough warning prompt sound of distance, lock function key input module is not worked it simultaneously.When the distance be equal to or greater than prior setting apart from the time, single-chip microcomputer sends the information of initialization success to first single-chip microcomputer by radio receiving transmitting module, after receiving the affirmation information that first single-chip microcomputer returns, voice cue module is sent the prompt tone of the beginning that gives a test of one's eyesight, simultaneously unlocking function key input module; After first single-chip microcomputer powers on, just by radio receiving transmitting module and second singlechip communication, after receiving initialization success information, first single-chip microcomputer sends instruction, the equal-sized test symbol of first row of one of display module demonstration and standard visual acuity chart, the while voice cue module is sent examination of visual acuity and is begun prompt tone, the testee is by the sensing of function key input module input test symbol, if the testee points to correctly, then show a next line test character, up to last column of standard visual acuity chart, if the testee points to mistake, the test symbol that then shows an one's own profession again, wrong three times continuously, then finish examination of visual acuity, send EOT information to second singlechip, voice cue module is sent the end prompt tone, utilizes printer prints vision testing result at last.

Claims

1. an electronics visual acuity chart comprises an electronics visual acuity chart module and an operating board module, it is characterized in that: described electronics visual acuity chart module comprises first single-chip microcomputer, is connected with radio receiving transmitting module and display module with described first single-chip microcomputer; Described operating board module comprises second singlechip, described second singlechip is connected with radio receiving transmitting module, function key input module, display module, supersonic sounding module, voice cue module, and described electronics visual acuity chart module is connected through radio receiving transmitting module with described operating board module.

2. a kind of electronics visual acuity chart according to claim 1 is characterized in that: also be connected with power supply with described single-chip microcomputer.

3. a kind of electronics visual acuity chart according to claim 1, it is characterized in that: described second singlechip connects printer through USB interface.

4. a kind of electronics visual acuity chart according to claim 1 is characterized in that: described display module is a LED display.