The high-definition network high-speed ball is developed on the basis of the traditional analog high-speed ball. On the basis of it, adding a high-definition integrated movement, an audio-video coding module, and a network access module can form a basic network-type high-speed ball. Realize high-definition video and audio data and control data to be reliably transmitted through the network.
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How to transmit data more smoothly in a high-definition network high-speed ball under a limited network bandwidth is the primary problem that manufacturers need to solve. The compression coding of H.264 has gradually become the mainstream, providing high-quality image transmission at a lower bandwidth. Under the same image quality conditions, the data compression ratio of H.264 is 1.5 times that of MPEG-4. However, network latency is also an important consideration because of network transmission.
The high-speed ball first needs to pay attention to the high-speed running performance, and secondly, it needs to pay great attention to the key indicator of the low-speed running performance of the ball machine. For example, high-definition high-speed ball products of some mainstream manufacturers at home and abroad have made in-depth research on stepping motor subdivision technology, with a manual minimum speed of 0.01 degrees/second, preset speed of up to 300 degrees/second, and in addition to stepless speed change, humanity. Technology such as zoom/speed automatic matching achieves good low-speed stability and high-speed accuracy, ensuring a good visual experience for customers when performing proportional zoom operations and preset position settings.
At present, mainstream HD high-speed ball products can provide rich and diverse functions, such as front-end audio input, audio output, alarm linkage, video occlusion, video motion alarm, cruise scanning, pattern scanning, watch position, system restart, movement parameter setting. Other functions, in addition to some technically strong manufacturers have also developed some features, such as OSD menu, 3D positioning and other functions.
The product line is becoming more and more abundant. From the point of view of pixels, there are currently 1.3 million, 2 million, and 3 million pixels. From the perspective of sensor types, there are CMOS, CCD, and the latest ExmorCMOS. From the perspective of product form, there are ordinary high-speed balls. Infrared high-speed ball, laser high-speed ball, etc.; from the perspective of optical performance, there are 18X, 20X, 28X and so on.
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