Cascade communication method and cascade system
A cascading system and communication method technology, applied in the field of communication, can solve problems such as data errors, communication equipment data delay, signal attenuation, etc., and achieve the effect of expanding more layers of cascading and solving error code errors
Active Publication Date: 2015-11-11
深圳市茁迩科技发展有限公司
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[0004] The main purpose of the present invention is to provide a cascading communication method and cascading system, aiming at solving the problems of data delay, signal attenuation and data error between communication devices in the case of cascading communication devices
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[0041] It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.
[0042] The present invention provides a cascade communication method, referring to figure 1 , in one embodiment, the cascade communication method includes the following steps:
[0043] Step S10, obtaining the communication information of the communication equipment connected to the cascade system;
[0044] In this example, refer to figure 2 , the communication device is preferably a KVM device, and the KVM devices are serially connected through a cascading line to form a whole cascading system. Wherein, the cascading cable may be a common VGA (Video Graphics Array, video transmission standard) cable, a network cable or other non-standard general-purpose cables, depending on which cascading interface is used. The internal hardware circuit of KVM equipment adopts the combination of UART (Universal Asynchronous Recei...
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The invention discloses a cascade system. The cascade system comprises a cascade line and a plurality of communication devices serially connected by the cascade line, wherein the cascade line comprises a sorting line, a downlink bus for connecting a host computer with a slave computer, and an uplink bus for connecting the host computer with the slave computer; the sorting line is used to sequentially connect the plurality of communication devices, and determines host computers and slave computers in the plurality of communication devices according to communication information of the communication devices; the downlink bus is used to sequentially transmit data sent by the host computer to the slave computer through the downlink bus; and the uplink bus is used to transmit the data fed back by the slave computer to the host computer. The invention further discloses a cascade communication method. According to the cascade communication method and system, data transmission time is shortened, the real-timeness and accuracy of the data is ensured to a maximum extent, and the problem of error codes caused by signal attenuation is solved; and in addition, the cascade communication method and system have a characteristic that more layers of cascades can be extended.
Description
technical field [0001] The invention relates to the technical field of communication, in particular to a cascade communication method and a cascade system. Background technique [0002] KVM equipment (KeyboardVideoMouse, multi-computer switcher, which can control multiple devices with a set of keyboards, monitors, and mice) is becoming more and more widely used, and the scalability requirements for KVM equipment are also getting higher and higher to facilitate operation. Management and setup of multiple servers by personnel. Existing KVM equipment usually adopts serial cascading mode, which is connected layer by layer with cascading lines, and the first layer controls the KVM devices of other layers, in which all control data are sent by the first layer, and the control data During the transmission process, it needs to be sent down layer by layer to ensure that the data will not be attenuated due to the long distance of the cascading line and the interfaces of each layer du...
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IPC IPC(8): G06F13/38G06F3/038
CPCG06F3/038G06F13/385G06F2213/3852
Inventor 杨穗马少槟朱小粦
Owner 深圳市茁迩科技发展有限公司