UUV distributed control system time alignment method for compensating underwater acoustic communication time delay

A technology of distributed control and underwater acoustic communication, applied in time division multiplexing systems, multiplexing communication, electrical components, etc.

Inactive Publication Date: 2016-10-12
HARBIN ENG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to solve the problem of the impact of UUV underwater acoustic communication delay on time alignment. The present invention provides a UUV distributed control system time alignment method that compensates for underwater acoustic communication delay.

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  • UUV distributed control system time alignment method for compensating underwater acoustic communication time delay
  • UUV distributed control system time alignment method for compensating underwater acoustic communication time delay

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Embodiment Construction

[0019] combine figure 1 , this embodiment is a UUV distributed control system time alignment method for compensating underwater acoustic communication delay, including:

[0020] Step 1. Realize the time alignment between the underwater UUV mission control computer and the surface monitoring system:

[0021] combine figure 2 , the schematic diagram of the time alignment between the mission control computer and the water surface monitoring system can analyze the specific realization process of the time alignment between the mission control computer and the water surface monitoring system. Before the UUV arrives at the mission area and starts to execute the mission, the mission control computer actively sends a time alignment request signal to the water surface monitoring system through the communication sonar, and at the same time records the current time t of the mission control computer. 1 ; After the water surface monitoring system receives the time alignment request signa...

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Abstract

The invention discloses UUV (Unmanned Underwater Vehicle) distributed control system time alignment method for compensating underwater acoustic communication time delay, and relates to a UUV distributed control system time alignment method. The UUV distributed control system time alignment method for compensating underwater acoustic communication time delay aims at solving the problem of influence from the UUV underwater acoustic communication time delay to time alignment. The method comprises the steps of 1, performing time alignment for an underwater UUV mission control computer and a surface monitoring system and updating the time of the mission control computer by utilizing the underwater acoustic communication time delay; and 2, performing time alignment for all the network nodes of the UUV distributed control system and the updated mission control computer. Consideration is given to the change condition of the underwater acoustic propagation velocity along with the temperature, salinity, density and the like of the ocean, the underwater acoustic communication time delay is compensated, and the influence from the underwater acoustic communication time delay to the precise time alignment is removed. The UUV distributed control system time alignment method for compensating the underwater acoustic communication time delay has high efficiency and can reduce a risk of exposure for a military UUV.

Description

technical field [0001] The present invention relates to a time alignment method for a UUV distributed control system, in particular to a time alignment method for a UUV distributed control system that compensates underwater acoustic communication time delay. Changes in temperature, density, etc., compensate for the underwater acoustic communication delay, and can achieve accurate time synchronization for the UUV distributed control system. Background technique [0002] When the Unmanned Underwater Vehicle (UUV) performs high-precision submarine observation, military reconnaissance and other tasks, it is required to accurately map the observation data and reconnaissance information in space / time in four dimensions. Therefore, it is required that the UUV arrive at the mission area and Accurately time-synchronize their distributed control systems before commencing missions. [0003] Before the UUV arrives at the mission area and starts to perform the mission, it synchronizes t...

Claims

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Application Information

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IPC IPC(8): H04J3/06
CPCH04J3/0638
Inventor徐健胡志坚田国强张耕实汪慢
OwnerHARBIN ENG UNIV