led display system

Abstract

The invention relates to an LED display system which comprises the components of an upper computer, a HUB kind connecting device, a plurality of terminal devices, and an LED display screen which is connected with the plurality of terminal devices. The upper computer is connected with the HUB kind connecting device through a network or a USB data cable. The plurality of terminal devices are connected with the HUB kind connecting device through the network or USB data cables. The LED display system with a terminal device star-shaped connected access control architecture based on the network or USB data cables according to the invention can support remote accessing. Upper computer software realizes timely control response for each terminal device, and therefore good user experience is obtained. Communication speed can be improved, and the LED display system is suitable for batch data transmission. Furthermore the upper computer communicates with the terminal devices in a point-to-point communication manner, thereby preventing restriction to the number of terminal devices by a bus type cascade structure.

Description

technical field [0001] The invention relates to the technical field of LED display control, in particular to an LED display system. Background technique [0002] At present, in the field of LED display control, the access control scheme design of terminal equipment is mainly based on the bus type cascade structure. figure 1 It is a schematic diagram of the hardware architecture of a terminal device access control scheme using a bus-type cascade structure. From figure 1 It can be seen that the entire system architecture is composed of the host computer and the terminal device with the host computer software installed. The host computer is only physically connected to the first terminal device (terminal device 1) in the cascade. The host computer first enumerates and communicates with the host computer. The first device that is physically connected, then all devices in the cascade are sequenced and accessed through the first device. Among them, there are many buses that sup...

AI Technical Summary

Problems solved by technology

However, the disadvantage of this architecture is that the communication rate is low, which is not suitable for large-scale data transmission; and the bus-type cascaded structure does not use the cascading of multiple terminal devices, and the access to the last-level terminal device requires the participation of all terminal devices For data packet forwarding, the overall bandwidth utilization efficiency will gradually decrease with the increase in the number of cascaded terminal devices, and the user experience will be poor; in addition, the connecting cables that support this kind of bus-type cascading structure often do not support long-distance transmission, and the on-site erection is not enough convenient

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