Driving method of LED three-dimensional display based on Internet of Things
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A three-dimensional, driving method technology, applied in specific environment-based services, static indicators, instruments, etc., can solve problems such as intelligent changes and ineffective lighting effects
Active Publication Date: 2021-03-12
HEILONGJIANG COLLEGE OF CONSTR
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Problems solved by technology
[0008] In order to achieve intelligent control, the present invention solves the problem that the lighting effect canno
Method used
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specific Embodiment 1
[0035] The present invention provides a kind of driving method of LED three-dimensional display based on Internet of Things, comprises the following steps:
[0036] Step 1: Collect sound signals through the audio input interface, identify them through the music rhythm recognition module, and filter the sound signals;
[0037] The music rhythm recognition module recognizes the time interval between the forte dong and the sub-forte da at about 0.5–1 second, the sampling time is 4 beats, about 2–4 seconds, the total sampling time T is set to 2 seconds, and the number of sampling points N is 128 points, and the calculated sampling time interval t=T / N=2 seconds / 128=15.625 milliseconds, that is, the music sound intensity is sampled every 15.625 milliseconds, and a total of 128 samples are taken.
[0038] Step 2: Receive the screened sound signal through the MCU, convert the sound signal into a frequency domain signal, and output the frequency domain signal to the NBIOT IoT module; l...
specific Embodiment 2
[0092] This embodiment is a driving method for displaying, translating, rotating, and other effects of graphics such as points, lines, planes, triangles, circles, bitmaps, cubes, spheres, and columns in an LED three-dimensional display based on the Internet of Things. illustrate.
[0093] 1D vector graphics
[0094] Features of vector graphics:
[0095] Only the structure definition of basic vector graphics directly specifies the display coordinates, and complex vector graphics and bitmaps are initially defined at the 0 point of the cube (X, Y, Z coordinate values are all 0)
[0096] Point Point
[0097] A point in a cube whose members consist of X, Y, Z coordinate values, and whether it is visible or not
[0098]
[0099] Line
[0100] The structure member consists of two point structures (Point), and whether it is visible or not.
[0101]
[0102] One-dimensional bitmap LineBmp
[0103] That is, a specified point is lit on a line. Setting this structure is main...
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Abstract
The invention relates to a driving method of an LED three-dimensional display based on the Internet of Things. The driving method relates to the technical field of three-dimensional displays, comprises the steps of: collecting a sound signal through using an audio input interface, carrying out recognition through using a music rhythm recognition module, and screening sound signals; receiving the sound signals after layer selection and line selection through an MCU, converting the sound signals into frequency domain signals, and outputting the frequency domain signals to an NBIOT Internet of Things module; and screening the signals and outputting the screened signals to an LED light cube. According to the driving method, the self-adaptive webpage design is adopted, so that a user can checkand control the display content and animation effect of the field LED light cube at a field end no matter whether the user uses an Android mobile phone, an iPhone or a PC, a data display part of the webpage is updated in real time by using an Ajax technology under the condition that the webpage is not reloaded, and meanwhile, an intelligent control scheme can be used for realizing the effects of displaying specified contents and animation at specified time and under specified conditions.
Description
technical field [0001] The invention relates to the technical field of indoor three-dimensional displays, and relates to a driving method for LED three-dimensional displays based on the Internet of Things. Background technique [0002] The LED display device has powerful display capabilities, and can display dynamic effects such as Chinese characters, graphics and animations in three dimensions. Combined with the music and the spatial layout of the building, the LED display device can realize all kinds of fantastic and dynamic shapes, and create an art space with various theme scenes on the three-dimensional surface. It has good permeability, strong three-dimensional sense, rich creativity and communication space. The advantages of large size, long viewing distance, and various specifications can meet the needs of various application scenarios. [0003] At the same time, it realizes the function of dynamically displaying clock, date, and weather information, and organically...
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