CN103716516A - Device capable of automatically adjusting visual range of screen and working method of the device - Google Patents

Abstract

The invention discloses a device capable of automatically adjusting the visual range of a screen and a working method of the device. The device comprises a housing, a camera, an infrared transceiver, a power switch, a lithium battery, a transparent protection cover, adsorbable rubber, and a bottom plate, the bottom of the bottom plate is provided with a plurality of pieces of adsorbable rubber, the camera, the infrared transceiver, the lithium battery and the power switch are fixedly connected in sequence, and the housing is internally provided with a control circuit. When an old man comes near to the screen, content displayed by the screen is amplified in equal proportion and doubled in maximum, when the old man is far from the screen, the content displayed by the screen is diminished in equal proportion and to a unamplified state in minimum, and an optimal visual distance is reminded when the proportion of the content displayed by the screen changes; and when a child comes near to the screen, the displayed content is diminished in equal proportion and to one quarter in minimum, an optimal visual distance is reminded when the proportion of the content displayed by the screen changes, and the screen is turned off when the child continues to come near after the content is diminished to one quarter. The device capable of automatically adjusting the visual range of the screen is particularly suitable for eyesight protection of children, or for providing care for the old with poor eyesight, thereby facilitating reading.

Description

Device capable of automatically adjusting the visible range of the screen and its working method

technical field

The invention relates to a screen external device designed for special groups of people, more specifically, an external device capable of automatically adjusting the visual range of a screen and a method for using the same.

Background technique

With the development of the times, 3C products have entered thousands of households and become an indispensable part of our lives. Increasing screen size is a common trend in the development of all 3C products. But at the same time, it puts a lot of burden on our eyes, especially children, they all like to stand very close to the screen to watch the screen, even if parents remind them repeatedly, they still don’t have the awareness to protect their eyesight . On the contrary, the elderly or people with poor eyesight need a device that can enlarge the display range proportionally after getting close.

Contents of the invention

The object of the present invention is to overcome the deficiencies of the prior art, and provide a device capable of automatically adjusting the visual range of the screen and its working method.

Technical scheme of the present invention is such:

A device that can automatically adjust the visual range of the screen, which includes a housing, a camera, an infrared transmitter receiver, a power switch, a lithium battery, a transparent protective cover, an absorbable rubber, and a bottom plate. The bottom plate is rectangular, and the bottom of the bottom plate is provided with A plurality of absorbable rubbers, the camera, the infrared transmitter receiver, the lithium battery, and the power switch are fixedly connected in sequence, and a control circuit is arranged in the shell.

The absorbable rubber is provided with a magnetic circular magnetic strip to facilitate the fixing of the device.

The shell is cylindrical.

A working method of the device, the steps are as follows:

1) The device is turned on and initialized;

2) The camera works to identify whether it is an elderly person or a child;

3) If it is determined to be an elderly user, the device defaults to: when the elderly are close to the screen, the content displayed on the screen will be enlarged proportionally, up to 2 times; , when the proportion of the content displayed on the screen changes, the best viewing distance will be reminded; if it is determined that the user is a child, the device will default to: when the child approaches the screen, the displayed content will be reduced proportionally, at least to 1/4 times, and the screen displayed When the content ratio changes, the best viewing distance will be reminded, and the screen will be turned off when it continues to approach 1/4 times;

The setting of the infrared transmitter and receiver can transmit and give back the distance from the user to the screen, so that when the distance changes, the device can adjust the viewing size of the screen in real time.

In the above step 3), whether to be close to the screen or far away from the screen is determined according to the optimal viewing distance, and the optimal viewing distance = screen height ÷ vertical resolution × 3400, the unit is centimeters.

The camera is connected to a mobile phone, a tablet, and a computer through a wireless network.

The beneficial effects of the present invention are as follows:

1. Provide the best viewing ratio according to the distance of the person from the display device.

2. The invention is especially suitable for protecting eyesight of children, or providing care for the elderly with poor eyesight, so as to facilitate their reading.

3. The guardian can connect to the wireless network, and can know the dynamics of children and the elderly in real time through the mobile terminal remotely; in addition, the display device can be remotely managed through the Internet of Things technology.

Description of drawings

Fig. 1 is a structural representation of the present invention;

Fig. 2 is the structural representation of the bottom of the present invention;

Fig. 3 is a schematic diagram of a usage scenario of the present invention.

In the figure: shell 1, camera 2, infrared transmitter receiver 3, power switch 4, lithium battery 5, transparent protective cover 6, absorbable rubber 7, bottom plate 8.

Detailed ways

Embodiments of the present invention are described in further detail below in conjunction with accompanying drawings:

As shown in Figures 1 and 2, an external device that can automatically adjust the visual range of the screen mentioned in the present invention includes a housing 1, a camera 2, an infrared transmitter receiver 3, a power switch 4 and a lithium battery 5, a transparent Protective cover 6, absorbable rubber 7, base plate 8. The base plate is a rectangular base plate 8, and the bottom of the base plate 8 is provided with an absorbable rubber 7, and the camera 2, the infrared transmitter receiver 3, the lithium battery 5, and the power switch 4 are fixedly connected sequentially from left to right; Said casing 1 is provided with a control circuit.

The housing 1 as shown in FIG. 1 is cylindrical.

The transparent protective cover 6 as shown in FIG. 1 is made of transparent PUMA material, and is shaped as a rectangle with rounded corners.

As shown in Figure 2, the absorbable rubber 7 is provided with a magnetic circular magnetic strip, which can facilitate the fixing of the device.

A lithium battery 5 as described in Figure 2 provides power for the device.

Working method of the present invention is as follows:

1) The device is turned on and initialized;

2) Camera 1 works to identify whether it is an elderly person or a child;

3) If it is determined to be an elderly user, the device defaults to: when the elderly are close to the screen, the content displayed on the screen will be enlarged proportionally, up to 2 times; , when the proportion of the content displayed on the screen changes, the best viewing distance will be reminded; if it is determined that the user is a child, the device will default to: when the child approaches the screen, the displayed content will be reduced proportionally, at least to 1/4 times, and the screen displayed When the content ratio changes, the best viewing distance will be reminded, and the screen will be turned off when it continues to approach 1/4 times;

The setting of the infrared transmitting receiver 3 can transmit and give back the distance from the user to the screen, so that when the distance changes, the device can adjust the viewing size of the screen in real time.

In the above step 3), whether to be close to the screen or far away from the screen is determined according to the optimal viewing distance, the optimal viewing distance = screen height ÷ vertical resolution × 3400, the unit is centimeters; the optimal viewing distance is the default setting, It can be set manually according to the site or the user's preference.

The camera 2 is connected to a mobile phone, a tablet, and a computer through a wireless network.

Finally, it should also be noted that the above enumerations are only specific implementation examples of the present invention. Obviously, the present invention is not limited to the above implementation examples, and many modifications are possible. For those of ordinary skill in the art, without departing from Under the premise of the core technical features of the present invention, some improvements and modifications can also be made, and these improvements and modifications should also be regarded as the protection scope of the present invention.

Claims (7)

1. A device that can automatically adjust the visible range of the screen, characterized in that it includes a housing (1), a camera (2), an infrared transmitter receiver (3), a power switch (4), a lithium battery (5), Transparent protective cover (6), absorbable rubber (7), and bottom plate (8), the bottom plate (8) is rectangular, and the bottom of the bottom plate (8) is provided with a plurality of absorbable rubber (7), the The camera (2), the infrared transmitting receiver (3), the lithium battery (5), and the power switch (4) are fixedly connected in sequence, and the casing (1) is provided with a control circuit. 2. The device according to claim 1, characterized in that, the absorbable rubber (7) is provided with a magnetic circular magnetic strip, which facilitates the fixing of the device. 3. The device according to claim 1, characterized in that, the housing (1) is cylindrical. 4. A method of working of the device according to claim 1, wherein the steps are as follows: 1) The device is turned on and initialized; 2) The camera (1) works to identify whether it is an elderly person or a child; 3) If it is determined to be an elderly user, the device defaults to: when the elderly are close to the screen, the content displayed on the screen will be enlarged proportionally, up to 2 times; , when the proportion of the content displayed on the screen changes, the best viewing distance will be reminded; if it is determined that the user is a child, the device will default to: when the child approaches the screen, the displayed content will be reduced proportionally, at least to 1/4 times, and the screen displayed When the content ratio changes, the best viewing distance will be reminded, and the screen will be turned off when it continues to approach 1/4 times. 5. The working method according to claim 4, characterized in that, the setting of the infrared transmitting receiver (3) can transmit and feedback the distance from the user to the screen, so that when the distance changes, the The device instantly adjusts the screen viewing size. 6. The working method according to claim 4, characterized in that, in the step 3), being close to the screen or away from the screen is determined according to the optimal viewing distance, and the optimal viewing distance = screen height ÷ vertical resolution ×3400, the unit is cm. 7. The working method according to claim 5, characterized in that, the camera (2) is connected to a mobile phone, a tablet, or a computer through a wireless network.

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