Method and device for sending and receiving data based on symmetrical high-speed digital subscriber line shdsl
A digital subscriber line and data sending technology, applied in digital transmission system, data exchange network, telephone communication, etc., can solve the problems of no way to locate, limit, and cannot complete, etc., to achieve flexible use, wide application space and detection space , Improve the effect of diversity and comprehensiveness
Active Publication Date: 2017-08-25
北京航天晨信科技有限责任公司
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Problems solved by technology
[0005] However, SHDSL is relatively single and limited
SHDSL has only a single output interface to the outside world, and can only realize point-to-point data transmission. If there are multiple devices at the output end that need to obtain data at the same time, the current technical solution cannot be completed.
In addition, if there is an error in the data transmission process, or if the data is not transmitted to the output device due to other reasons, then the data will be lost, and there is no way to locate the problem, exposing the limitations of the current technical solutions
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[0079] In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.
[0080] DSL (Digital Subscriber Line, Digital Subscriber Line) technology can refer to the technology that uses the unused frequency on the telephone copper line to transmit data services and the rate can reach several Mb / s. This DSL technology can allow voice and data at the same time. transmission on the line.
[0081] DSL technology has been developed since the 1980s, mainly including high bit rate DSL (HDSL), asymmetric DSL (ADSL), very high bit rate DSL (VDSL) and single pair high bit rate DSL (SHDSL).
[0082] DSL is a technology for transmitting digital signals on analog lines. The purpose may be to solve the bottleneck problem of the last mile of data communication, and realize the access of end users to the data network by...
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The embodiment of the invention provides a data sending and receiving method and device based on an SHDSL. The method includes the steps of obtaining source format data of a first interface, wherein the source format data are sent to the first interface through a second interface, the second interface is used for receiving the source format data, and the first interface is used for connecting a switch chip with an FPGA; converting the source format data into transmission format data; transmitting the transmission format data to the SHDSL to be sent; configuring a third interface, wherein the third interface is used for receiving the source format data sent by the second interface, and / or receiving the source format data received by the first interface. By means of the method and device, the outward output interfaces of the SHDSL can be expanded, and therefore one-point to multi-point data transmission is achieved, the interfaces are detected, the problems are positioned, and the diversity and comprehensiveness of the SHDSL are improved.
Description
technical field [0001] The present invention relates to the field of communication technology, in particular to a method for sending data based on a symmetrical high-speed digital subscriber line SHDSL, a method for receiving data based on a symmetrical high-speed digital subscriber line SHDSL, and a method for sending data based on a symmetrical high-speed digital subscriber line SHDSL Device and a device for receiving data based on Symmetrical High Speed Digital Subscriber Line SHDSL. Background technique [0002] Driven by informatization construction, data transmission methods have become diverse, and different transmission methods are used in different scenarios. [0003] Specifically, since the monitoring of scenes in the wild environment becomes more and more common, the long-distance audio and video transmission of the scene in the wild environment becomes more and more important. The field environment generally requires a radius of less than 10 kilometers. The mo...
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IPC IPC(8): H04L12/861H04L1/00H04M11/06
Inventor 崔丹刘庆孙焕鹏邓明亮
Owner 北京航天晨信科技有限责任公司