CN211154419U

CN211154419U - Vision protector

Info

Publication number: CN211154419U
Application number: CN201921048015.XU
Authority: CN
Inventors: 曹冬生
Original assignee: Shanghai Linmeng Intelligent Technology Co ltd
Current assignee: Shanghai Linmeng Intelligent Technology Co ltd
Priority date: 2019-07-04
Filing date: 2019-07-04
Publication date: 2020-08-04
Anticipated expiration: 2029-07-04

Abstract

The utility model discloses a vision protector, include: a shell, the middle part of which is provided with an accommodating cavity; the control part is arranged in the accommodating cavity of the shell; the ultrasonic generator and the ultrasonic sensor are also included; the ultrasonic generator and the ultrasonic sensor are respectively electrically connected with the control part; the top of the shell is provided with an ultrasonic transmitting hole and an ultrasonic receiving hole, and an ultrasonic generator is arranged below the ultrasonic transmitting hole; an ultrasonic sensor is arranged below the ultrasonic receiving hole; still be equipped with warning reminding device in the casing, warning reminding device and control portion electric connection, casing surface is close to warning reminding device department and is equipped with the sound amplification hole. Based on the pulse emitted by a built-in ultrasonic generator, the physical counting and ranging are carried out through the ultrasonic pulse, so that the method is efficient and accurate; based on the technical characteristics that the light sensor receives light in real time, the brightness degree of the current ambient light in the using process is monitored, and the eyesight is effectively protected.

Description

Vision protector

Technical Field

The utility model relates to an electronic office supplies specifically, relates to an eyesight protector.

Background

Nowadays, the proportion of myopia people in teenagers and even adult groups is increased year by year, and the root cause is mainly caused by incorrect posture and unreasonable light use in the process of desk-top learning operation such as reading, writing and the like in the teenager period. Aiming at the situation, the design method can monitor the sight line distance and the light intensity of the user at the desk in real time, and sends out alarm prompt under the conditions that the sight line distance is too close or too far and the light is too dark so as to warn the user to change the posture or the light, and is called as a design direction with wide application prospect.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome prior art's defect, provide an ultrasonic ranging and photosensitive original paper survey vision protector of light.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a vision protector, comprising:

a shell, the middle part of which is provided with an accommodating cavity; the control part is arranged in the accommodating cavity of the shell;

the ultrasonic generator and the ultrasonic sensor are also included; the ultrasonic generator and the ultrasonic sensor are respectively electrically connected with the control part; the top of the shell is provided with an ultrasonic transmitting hole and an ultrasonic receiving hole, and the ultrasonic generator is arranged below the ultrasonic transmitting hole; the ultrasonic sensor is arranged below the ultrasonic receiving hole;

the shell is internally provided with an alarm reminding device, the alarm reminding device is electrically connected with the control part, and a sound expansion hole is formed in the position, close to the alarm reminding device, of the surface of the shell.

The further technical scheme is as follows: the casing top is equipped with luminous flux monitoring hole, the eyesight protector is still including locating the inside light sensor of casing, light sensor locates luminous flux monitoring hole below.

The further technical scheme is as follows: the ultrasonic sensor is provided with a built-in conversion device for converting the received ultrasonic reflected wave into an electric signal, amplifying the electric signal and transmitting the electric signal to the control part.

The further technical scheme is as follows: the ultrasonic generator is a pulse generator which emits pulses once per second, and the control device counts through the received electric signals of the ultrasonic reflected waves to judge the line-of-sight distance.

The further technical scheme is as follows: the upper portion of the shell is provided with a display panel to display the line-of-sight distance from a user to a desktop in real time.

The further technical scheme is as follows: and a plurality of switch keys are arranged on the side surface of the shell and used for controlling the ultrasonic ranging, the luminous flux monitoring and the power supply to be turned on and off.

The further technical scheme is as follows: and a built-in detachable battery pack is arranged below the shell to supply a low-voltage mobile power supply required by the operation of each component.

Compared with the prior art beneficial effect:

the utility model discloses a vision protector, based on built-in ultrasonic generator transmission pulse, reach the technical characteristics that the human reflection is received by ultrasonic receiver after the conversion is enlargied and is carried to the control part and carry out real-time range finding, carry out the physical count range finding through ultrasonic pulse, it is high-efficient accurate; based on the technical characteristics that the light sensor receives light in real time, the brightness of the current ambient light in the using process is monitored, and the eyesight is effectively protected; based on the technical characteristics of the built-in alarm and the external distance display device, a user can conveniently know the current line-of-sight distance, and can hear the alarm prompt when the line-of-sight distance is out of the correct range, thereby effectively correcting the bad sitting posture of the individual, and being beneficial to protecting the eyesight and correcting the posture. The utility model discloses the advantage is through distance and light detection to the early warning makes teenagers form and reads under reasonable illumination condition, writes, reaches the purpose of protection eyesight.

In order to make the aforementioned objects, features and advantages of the present invention more clearly understood, the present invention will be described in further detail with reference to the accompanying drawings and detailed description.

Drawings

Fig. 1 is a front view of the vision protector of the present invention;

fig. 2 is a left side view of the vision protector shown in fig. 1.

Reference numerals:

1 case 2 ultrasonic receiving hole

3 ultrasonic emission hole 4 luminous flux monitoring hole

5 display panel 6 switch key

7 detachable battery pack 8 sound amplifying hole

Detailed Description

In the following detailed description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be implemented in other ways than those specifically described herein, and thus the scope of the present invention is not limited by the specific embodiments disclosed below.

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some, but not all, embodiments of the present application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

It will be understood that the terms "comprises" and/or "comprising," when used in this specification and the appended claims, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.

It is also to be understood that the terminology used in the description of the present application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used in the specification of the present application and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.

It should be further understood that the term "and/or" as used in this specification and the appended claims refers to and includes any and all possible combinations of one or more of the associated listed items.

The ultrasonic transmitter transmits ultrasonic waves to a certain direction, timing is started at the same time of transmitting time, the ultrasonic waves are transmitted in the air and return immediately when encountering an obstacle in the process, and the ultrasonic receiver stops timing immediately when receiving reflected waves. The propagation speed of the ultrasonic wave in the air is 340m/s, and the distance(s) of the transmitting point from the obstacle can be calculated according to the time t recorded by the timer, namely: and s is 340t/2 (time difference ranging method). The ultrasonic wave is easy to emit directionally, has good directivity and controllable intensity, and does not need to be in direct contact with an object to be measured, so the ultrasonic wave is an ideal means for measuring the height of the liquid. In the precise liquid level measurement, the millimeter-level measurement precision is required, but the current domestic ultrasonic distance measurement special integrated circuits have the centimeter-level measurement precision.

As shown in fig. 1-2, in embodiment 1, a vision protector includes:

a shell 1, the middle part of which is provided with an accommodating cavity; the control part is arranged in the accommodating cavity of the shell 1;

the ultrasonic generator and the ultrasonic sensor are also included; the ultrasonic generator and the ultrasonic sensor are respectively electrically connected with the control part; the top of the shell 1 is provided with an ultrasonic transmitting hole 3 and an ultrasonic receiving hole 2, and an ultrasonic generator is arranged below the ultrasonic transmitting hole 3; an ultrasonic sensor is arranged below the ultrasonic receiving hole 2;

still be equipped with warning reminding device in the casing 1, warning reminding device and control portion electric connection, casing 1 surface is close to warning reminding device department and is equipped with sound amplification hole 8.

The control part controls the ultrasonic generator to emit pulses once per second and count the pulses, determines the line-of-sight distance according to the count value when receiving the reflected signal, and controls the alarm reminding device to send out alarm sound if the line-of-sight distance is less than the safe distance. Meanwhile, the light sensor receives external light, and when the light flux of the light is higher than or lower than a preset threshold value, the control part also controls the alarm reminding device to give out an alarm sound.

The top of the shell 1 is provided with a luminous flux monitoring hole 4, the eyesight protector further comprises a light sensor arranged inside the shell 1, and the light sensor is arranged below the luminous flux monitoring hole 4.

The ultrasonic sensor incorporates a conversion device to convert the received ultrasonic reflected wave into an electric signal and amplify and transmit it to the control section.

The ultrasonic generator is a pulse generator which emits pulses once per second, and the control device counts through the received electric signals of the ultrasonic reflected waves to judge the line-of-sight distance.

The upper portion of the housing 1 is provided with a display panel 5 for displaying the line-of-sight distance from the user to the desktop in real time, in this embodiment, an L ED light display device is selected for displaying the distance of the arabic numerals.

The side surface of the shell 1 is provided with a plurality of switch keys 6 for controlling the ultrasonic ranging, the luminous flux monitoring and the on and off of the power supply. After a user presses a power key to start a switch, ultrasonic ranging or luminous flux monitoring is selected to be started respectively or simultaneously as required to meet the requirements of different ambient light rays in the day or at night, namely, the luminous flux monitoring does not need to be started when the user lies on a desk for study and work in the day, and the luminous flux monitoring function needs to be started when the user uses lighting equipment such as a desk lamp or a ceiling lamp and the like.

A built-in detachable battery pack 7 is arranged below the shell 1 to supply low-voltage mobile power required by the operation of each component. In this embodiment, 2-section five-section storage battery pack is used for power supply, and the provided low-voltage electric quantity is safer than the alternating-current high-voltage electric quantity. The utility model discloses the advantage is through distance and light detection to the early warning makes teenagers form and reads under reasonable illumination condition, writes, reaches the purpose of protection eyesight.

To sum up, the vision protector of the utility model is based on the technical characteristics that the built-in ultrasonic generator emits pulses, the pulses are received, converted and amplified by the ultrasonic receiver after reaching the reflection of the human body, and then are transmitted to the control part for real-time distance measurement, and the physical counting and distance measurement are carried out through the ultrasonic pulses, so that the vision protector is efficient and accurate; based on the technical characteristics that the light sensor receives light in real time, the brightness of the current ambient light in the using process is monitored, and the eyesight is effectively protected; based on the technical characteristics of the built-in alarm and the external distance display device, a user can conveniently know the current line-of-sight distance, and can hear the alarm prompt when the line-of-sight distance is out of the correct range, thereby effectively correcting the bad sitting posture of the individual, and being beneficial to protecting the eyesight and correcting the posture.

The technical content of the present invention is further described by way of example only for the purpose of understanding, but the present invention is not limited thereto, and any technical extension or re-creation according to the present invention is protected by the present invention. The protection scope of the present invention is subject to the claims.

Claims

1. A vision protector, comprising:

the ultrasonic generator is characterized by also comprising an ultrasonic generator and an ultrasonic sensor; the ultrasonic generator and the ultrasonic sensor are respectively electrically connected with the control part; the top of the shell is provided with an ultrasonic transmitting hole and an ultrasonic receiving hole, and the ultrasonic generator is arranged below the ultrasonic transmitting hole; the ultrasonic sensor is arranged below the ultrasonic receiving hole;

2. A vision protector as claimed in claim 1, wherein the top of the housing has a light flux monitoring hole, the vision protector further comprises a light sensor disposed inside the housing, and the light sensor is disposed below the light flux monitoring hole.

3. A vision protector according to claim 1 in which the ultrasonic transducer incorporates conversion means to convert the received ultrasonic reflection into an electrical signal and amplify it for transmission to the control section.

4. A vision protector as claimed in claim 3 in which the ultrasonic generator is a pulse generator which emits a pulse once per second and the transducer means counts the number of received electrical signals from the ultrasonic reflections to determine the line of sight distance.

5. A vision protector as claimed in claim 1 in which the housing is provided with a display panel on the upper portion thereof for displaying the line of sight distance of the user from the table in real time.

6. A vision protector as claimed in claim 1 in which the housing has switch buttons on its sides for controlling ultrasonic ranging, light flux monitoring and power supply on and off.

7. A vision protector as claimed in claim 1 in which a removable battery pack is provided beneath the housing to supply low voltage power supplies for the operation of the components.