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Storage and fast transmission method of forward link data in interruption tolerant measurement and control network

A forward link and measurement and control network technology, applied in the field of forward fast service, can solve the problems of insufficient use of the forward link and increase the burden of the task control center, etc., and achieve the effect of improving efficiency and sending quickly and efficiently

Active Publication Date: 2018-10-23
10TH RES INST OF CETC
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  • Abstract
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Problems solved by technology

not only will this increase the burden on the mission control center, but it will also result in underutilization of forward link connectivity

Method used

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  • Storage and fast transmission method of forward link data in interruption tolerant measurement and control network

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Embodiment Construction

[0019] The present invention will be further described below in conjunction with the accompanying drawings.

[0020] refer to figure 1 . According to the present invention, in the forward link of the intermittently connected measurement and control network with the sending end and the packets to be sent, at the sending end of the interruption tolerant measurement and control network, the forward data generated by the forward link is sent to the Bundle layer of the packet to be sent to generate Bundle package; Bundle schedules the bundle package, transfers the bundle package to the Bundle hosting accepting unit, and the Bundle hosting accepting unit checks whether the forward link is connected, if yes, forwards the Bundle to the bundle package, if not, constructs the Hello header, initializes it, and sets Destination address and neighbor information, modify the periodic interval HelloInterval between two Hello data packets transmitted on the interface at the same time, and sen...

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Abstract

The invention discloses a method for storing and rapidly transmitting forward link data of a delay tolerant measurement and control network, and aims at providing a method for storing and rapidly transmitting the forward link data, which can rapidly and effectively acquire the current communication condition. The method is implemented through the following technical scheme comprising the steps that a forward link generates forward data and transmits the forward data to a Bundle layer to be grouped and transmitted to generate a bundle packet; the Bundle schedules the bundle packet, transmits the bundle packet to a Bundle hosting acceptance unit to check that whether the forward link is communicated, sets a target address and the information of a neighbor, modifies periodical time interval HelloInterval between two Hello data packets transmitted via an interface, and transmits the Hello packets to the neighbor; and when the Bundle hosting acceptance unit judges that an acknowledgement character ACK is received, the Hello packets are transmitted, and otherwise, the substep of transmitting the Hello packets to the neighbor is entered again. According to the method, the problems about storage and rapid transmission aiming at the interrupted communication of the link are solved.

Description

technical field [0001] The invention relates to the technical field of satellite measurement and control network communication protocols, in particular to a forward fast service method in a transport layer protocol that can be used for storage and fast transmission of forward link data in a measurement and control network. Background technique [0002] Interruption tolerant network DTN (Delay Tolerant Network) is a network different from traditional wired networks. DTN network is a kind of delay / interruption tolerant network with long delay and no end-to-end link or link at a certain moment. The characteristics of frequent interruptions and low node storage / computing capacity are fundamentally different from the current ground wired network, so the existing network protocols, such as TCP protocol, cannot meet the requirements of DTN network applications. TCP / IP based on the network service model can provide end-to-end communication on different link layer technologies. Altho...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/26H04L12/863
CPCH04L43/0811H04L43/10H04L47/50
Inventor 李望徐会忠
Owner 10TH RES INST OF CETC
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