CN209789820U

CN209789820U - Vision testing device

Info

Publication number: CN209789820U
Application number: CN201920105459.6U
Authority: CN
Inventors: 董凌宇
Original assignee: Young Education Equipment Ltd By Share Ltd In Yunhe County
Current assignee: Young Education Equipment Ltd By Share Ltd In Yunhe County
Priority date: 2019-01-22
Filing date: 2019-01-22
Publication date: 2019-12-17
Anticipated expiration: 2029-01-22

Abstract

The utility model relates to a vision testing device, which comprises a bracelet, a shell and a logarithmic visual chart, wherein the shell is in a flat cuboid shape, a visual chart mounting groove is arranged on the front plate surface of the shell, the logarithm visual chart is installed in the visual chart mounting groove, be equipped with one row of test button on the preceding face of shell in the right side of visual chart mounting groove, interval range about each test button, interval between the test button is unanimous with the logarithm interval on the logarithm visual chart, be equipped with the circuit board in the shell, a single-chip microcomputer, the speaker, display screen and battery, be equipped with power conversion module on the circuit board, a display module, voice module, RFID module and wiFi module, the display screen is used for showing the score, voice module is used for audio information's collection and broadcast, the built-in radio frequency of bracelet reads and writes the chip, RFID module is used for reading the information of radio frequency reading and writing chip, the wiFi module is used for being examined person's information and. Compared with the prior art, the device saves labor, is accurate in measurement and is high in efficiency.

Description

Vision testing device

Technical Field

The utility model belongs to the body survey device field especially relates to an eyesight testing device.

Background

With the increasing importance of education development of the country, talents are required to have not only solid cultural knowledge but also good thought quality, psychological state and healthy body; the students in middle and primary schools reflect the physical health conditions of the students comprehensively from the aspects of physical functions, physical forms, physical qualities and the like of the students, so that the students in middle and primary schools are very important. The eyesight test is the necessary project of surveying, and this test still all relies on artifically at present, and the recording child information before the test is measured in the test, and last record needs many people to cooperate, consumes the manpower, and efficiency is lower, makes mistakes easily.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an eyesight testing device to solve current test mode and consume manpower, inefficiency, the problem of making mistakes easily.

In order to achieve the above object, the vision testing device of the present invention adopts the following technical solution: the vision testing device comprises a bracelet, a shell and a logarithmic visual chart, the shell is in a flat cuboid shape, a visual chart mounting groove is arranged on the front plate surface of the shell, the logarithm visual chart is installed in the visual chart mounting groove, be equipped with one row of test button on the preceding face of shell in the right side of visual chart mounting groove, interval range about each test button, interval between the test button is unanimous with the logarithm interval on the logarithm visual chart, be equipped with the circuit board in the shell, a single-chip microcomputer, the speaker, display screen and battery, be equipped with power conversion module on the circuit board, a display module, voice module, RFID module and wiFi module, the display screen is used for showing the score, voice module is used for audio information's collection and broadcast, the built-in radio frequency of bracelet reads and writes the chip, RFID module is used for reading the information of radio frequency reading and writing chip, the wiFi module is used for being examined person's information and.

has the advantages that: the child wears the bracelet, a card is punched in the card swiping identification area on the host, the RFID module reads information of the child, the loudspeaker sends out prompting sounds of 'welcoming the child' and 'please prepare', the testing point is back to the position 2.5m away from the visual acuity chart, the loudspeaker sends out prompting sounds of 'game starting', the child presses a corresponding testing key after detecting the visual acuity logarithm seen, then sends a signal to the single chip microcomputer, the display screen displays a score, the loudspeaker broadcasts the score, and the WiFi module uploads the information and the score of the child to the cloud. Compared with the prior art, the device saves labor, is accurate in measurement and is high in efficiency.

furthermore, the single chip microcomputer adopts STM32F103VBT6, the display screen adopts a common anode red nixie tube, the RFID module adopts MFRC-522, and the WiFi module adopts ESP 8266.

Further, the top of the shell is provided with a pair of hangers for hanging the vision testing device on a wall.

further, the shell comprises a front plate, a rear plate and four rectangular long-strip-shaped side plates, the four side plates are installed between the front plate and the rear plate, and the front plate and the rear plate are connected to the side plates through screws.

further, the shell is made of wood materials; safety, environmental protection, sanitation and guarantee of the safety of children.

Drawings

FIG. 1 is a perspective view of an embodiment of a vision testing apparatus;

FIG. 2 is a first front view of an embodiment of a vision testing apparatus;

FIG. 3 is a second front view of an embodiment of a vision testing apparatus;

FIG. 4 is a right side view of FIG. 2;

FIG. 5 is a top view of FIG. 2;

FIG. 6 is a general view of the structure of the electric control part;

FIG. 7 is a schematic diagram of a portion of a circuit;

Fig. 8 is a system flow diagram.

In the figure: 100-shell, 200-logarithmic visual chart, 300-test key, 400-ear, 500-loudspeaker, 600-display screen and 700-RFID module.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are only a part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

A specific embodiment of the vision testing device, as shown in fig. 1 to 8, includes a bracelet, a housing 100 and a logarithmic visual chart 200, the housing 100 is in a flat cuboid shape, the housing 100 includes a front plate, a rear plate and four rectangular strip-shaped side plates, the four side plates are installed between the front plate and the rear plate, the front plate and the rear plate are both connected to the side plates by screws, a visual chart installation groove is formed on a front plate surface of the housing 100, the logarithmic visual chart 200 is installed in the visual chart installation groove, a row of testing keys 300 is arranged on the right side of the logarithmic visual chart 200 on the front plate surface of the housing 100, the testing keys 300 are arranged at intervals up and down, and the intervals between the testing keys 300 are consistent with the logarithmic intervals on the logarithmic visual chart 200; the top of the housing 100 is provided with a pair of hangers 400 for hanging the vision testing apparatus on a wall; the shell 100 is made of wood, so that the shell is safe, environment-friendly and sanitary, and ensures the safety of children.

Be equipped with the circuit board in the shell 100, STM32F103VBT6 singlechip, speaker 500, display screen 600 and battery, be equipped with power conversion module on the circuit board, a display module, voice module, RFID module 700 and wiFi module, display screen 600 adopts the red charactron of common anode, be used for showing the score, voice module is used for audio information's collection and broadcast, the built-in radio frequency of bracelet reads and writes the chip, RFID module 700 adopts MFRC-522, be used for reading the information that the radio frequency read and write the chip, the wiFi module adopts ESP8266, be used for uploading surveyed person's information and score to the high in the clouds.

The working process is as follows: when a child wears a bracelet, the card is punched in a card swiping identification area on the shell 100, the RFID module 700 reads information of the child, the loudspeaker 500 sends out prompting tones for 'welcoming the child' and 'please prepare', the prompting tones return to a measuring point 2.5m away from the visual chart, the loudspeaker 500 sends out prompting tones for 'starting game', the child presses the corresponding test key 300 after detecting the visual logarithm, then sends a signal to the single chip microcomputer, the display screen 600 displays scores, the loudspeaker 500 broadcasts scores, and the WiFi module uploads the information and the scores of the child to the cloud. Compared with the prior art, the method has the advantages of accurate detection result, labor saving and higher efficiency.

the above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered by the protection scope of the present invention.

Claims

1. Eyesight testing device, its characterized in that: including the bracelet, shell and logarithmic visual acuity chart, the shell is flat cuboid type, be equipped with the visual acuity chart mounting groove on the preceding face of shell, the logarithmic visual acuity chart is installed in the visual acuity chart mounting groove, be equipped with one row of test button on the preceding face of shell in the right side of visual acuity chart mounting groove, interval range about each test button, interval between the test button is unanimous with the logarithmic interval on the logarithmic visual acuity chart, be equipped with the circuit board in the shell, a single-chip microcomputer, the speaker, display screen and battery, be equipped with power conversion module on the circuit board, a display module, voice module, RFID module and wiFi module, the display screen is used for showing the score, voice module is used for audio information's collection and broadcast, the built-in radio frequency of bracelet reads and writes the chip, the RFID module is used for reading the information of radio frequency reads and writes the chip.

2. A vision testing device as defined in claim 1, wherein: the single chip microcomputer adopts STM32F103VBT6, the display screen adopts a common anode red nixie tube, the RFID module adopts MFRC-522, and the WiFi module adopts ESP 8266.

3. a vision testing device as defined in claim 1, wherein: the top of the shell is provided with a pair of hangers used for hanging the vision testing device on a wall.

4. A vision testing device as defined in claim 1, wherein: the shell comprises a front plate, a rear plate and four rectangular long-strip-shaped side plates, wherein the four side plates are arranged between the front plate and the rear plate, and the front plate and the rear plate are connected with the side plates through screws.

5. A vision testing device according to any one of claims 1-4, wherein: the shell is made of wood materials.