A cascade synchronous data acquisition and transmission system based on a PTP protocol

A PTP protocol, cascade synchronization technology, applied in time division multiplexing systems, electrical components, multiplexing communication and other directions, can solve the problems of increased system cost and power consumption, complex system architecture, complex implementation, etc. Improve system reliability, simplify system structure, and reduce system power consumption

CN109831267AActive Publication Date: 2019-05-31武汉海晟科讯科技有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2019-05-31

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Abstract

The invention provides a cascaded synchronous data acquisition and transmission system based on a PTP protocol. The cascaded synchronous data acquisition and transmission system comprises a data server, a plurality of PTP switches and a plurality of node linear arrays, a plurality of PTP switches are connected in series to form a core line. Wherein the plurality of node linear arrays are respectively connected with any PTP switch on the core line, and the head end PTP switch of the core line is connected with the data server. The integrated design is adopted, so that the acquisition node integrates a PTP message transparent relay forwarding function, the system structure is simplified, the system reliability is improved, the system power consumption is reduced, and the high synchronizationprecision of the whole system is achieved; a PTP synchronization protocol and PTP master and slave clocks are adopted, so that the submicrosecond clock synchronization precision between each node ofthe system and a data server can be realized; the uplink network port and the downlink network port of the acquisition node can realize low-power-consumption long-term operation through adaptive bandwidth.
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Description

technical field

[0001] The invention relates to the field of data signal processing, in particular to a cascade synchronous data acquisition and transmission system based on the PTP protocol. Background technique

[0002] Distributed synchronous data acquisition and transmission technology is widely used. Typical application scenarios include military linear array sonar wet-end distributed hydrophone data acquisition and transmission, offshore oil exploration ultra-large-scale multi-cable geophone data acquisition and transmission, and deep-sea thin cable sonar acquisition and transmission. detection system, etc. The existing distributed data acquisition and transmission system has the following defects: 1) Most of the existing systems adopt the architecture of RS485 bus, ATM transmission, self-defined LVDS transmission, Ethernet plus RS485, Ethernet plus LVDS, and the system architecture is more complicated. It is difficult to implement and apply, with backward performance...

Examples

Embodiment Construction

[0032] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the implementation manners in the present invention, all other implementation manners obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present invention.

[0033] Such as figure 1 shown. The present invention provides a cascaded synchronous data collection and transmission system based on the PTP protocol, comprising a data server 1, several PTP switches 2 and several node line arrays 3; several PTP switches 2 form a core circuit in series; Several node line arrays 3 are respectively connected to any PTP switch 2 on the core line, and the head-end PTP switch 2 of the core line is connected to the dat...