Timing device, system and method

Abstract

The invention provides a timing device, system and method. The device comprises a receiving unit, a main control unit, a timing output unit and an autonomous timing output unit; the receiving unit isused for processing received Beidou / GPS satellite signals and outputting a specified protocol format signal; the main control unit used for determining whether the satellite signals are valid not according to the specified protocol format signal; if the satellite signals are valid, a first control signal is output; if the satellite signals are invalid, a second control signal is output; a controlcommand is sent according to an external control signal; the timing output unit outputs an satellite timing signal based on the first control signal; and the autonomous timing output unit outputs a master device time signal as a timing signal based on the second control signal. According to the scheme, high precision and accuracy can be ensured, high invulnerability and robustness are achieved, and operational requirements of reliable and effective timing system information for combat units in different battlefield environments are provided.

Description

technical field [0001] This application relates to the field of network communication, in particular to a military timing device suitable for realizing the functions of absolute timing and relative timing when command and control vehicles at the brigade level and battalion level conduct centralized operations. Background technique [0002] In the process of networked operations of military equipment, it is necessary to align the nodes of unified operations in time and space in order to form a unified information field. When performing time-space alignment, each combat node needs to unify the time reference. [0003] At present, military equipment generally adopts the timing mode of connecting to the NTP network according to the requirements of the use scenarios, or the mode of connecting each single point to the Beidou timing combination for independent timing. There are the following problems in the use of these two modes: a) the use of NTP mode requires a high quality lev...

AI Technical Summary

Problems solved by technology

There are the following problems in the use of these two modes: a) the use of NTP mode requires a high quality level of the network communication environment, and is affected by changes in network routing and load, and the network transmission delay of NTP time statistics packets cannot be measured; b) NTP The time statistics message only gives the current absolute time message information, and cannot give the starting point of the current time. Affected by the network data transmission delay, the time statistics accuracy of the NTP time statistics message is not high; c) the Beidou timing combination is used Independent time service, through the second pulse and time code information, can perform high-precision time service on a single point, but in special cases, once the satellite signal is lost or damaged, the ground receiver cannot receive the normal second pulse and time code information, Therefore, it is impossible to achieve effective time information unification among the points.

Images