Abstract:
A backlight brightness adjustment method, device, and system, and a storage medium. The adjustment method comprises: calculating a light mixing distance of a backlight module and a horizontal spacing and a vertical spacing between a plurality of lamp panels; calculating a first brightness value according to the horizontal spacing and the light mixing distance, and calculating a second brightness value according to the vertical spacing and the light mixing distance; and adjusting the brightness at splicing positions of the plurality of lamp panels according to the first brightness value and/or the second brightness value.
Abstract:
A writing device, an intelligent writing board and a method for setting a color of electronic handwriting are provided. The writing device includes: a detection component, configured to obtain detection data of a use state of a writing pen, where the use state includes a writing state and a non-writing state; a communication component, configured to transmit the detection data and color-related information of the writing pen to the intelligent writing board, so that the intelligent writing board determines the use state of the writing pen according to the detection data, and when the use state of the writing pen is determined to be the writing state, a color of electronic handwriting of the writing pen obtained during the writing state of the writing pen is set to be a color corresponding to the color-related information.
Abstract:
The present disclosure provides an anti-removal monitoring circuitry, applied to an electronic tag. The circuitry includes a first input terminal, a second input terminal and an output terminal. The circuitry further includes: a shutdown circuit, configured to control the electronic tag to be in a shutdown state in response to connection between the first input terminal and the second input terminal; and a starting-up circuit, configured to control the output terminal to output a pulse voltage signal in response to disconnection between the first input terminal and the second input terminal, in such a manner that the electronic tag generates an alarm signal in response to the pulse voltage signal.
Abstract:
Embodiments of the disclosure disclose an intelligent picture frame, and a method for switching an image acquisition device in the intelligent picture frame. In this solution, there are a plurality of presentation states of the intelligent picture frame, where a plurality of image acquisition devices for finding a view in the respective presentation states are arranged on frame edges of the intelligent picture frame. An image acquisition device for finding a view is arranged separately on a frame edge of the intelligent picture frame in each presentation state, and when the intelligent picture frame in use transitions to whichever presentation state, switching can be made to the corresponding image acquisition device, so that there is a dedicated image acquisition device to find a view for the intelligent picture frame in whichever presentation state.
Abstract:
There is provided a method for detecting a rotation angle of a remote controller(21) in a television system(30,40) in order to realize a detection for the rotation angle of the remote controller(21) with respect to the television(20), which extends an application prospect of the television system. The television system (30,40) includes a television (20) and a remote controller (21), and the method comprises: collecting(S101), by the remote controller (21), an image of preset infrared sensors on the television (20) and imaging the collected image to a preset plane as a standard image, in a case in which the remote controller(21) does not rotate with respect to the television(20); collecting(S102), by the remote controller(21), an image of the infrared sensors on the television(20) and imaging the collected image to the preset plane again, in a case in which the remote controller(21) rotates with respect to the television(20); and calculating(S103) a rotation angle in a case in which the remote controller(21) rotates with respect to a screen of the television(20) by comparing the image with the standard image. There is further provided a television system(30,40).