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Time synchronizing method based on wireless communication and system thereof

A time synchronization system and time synchronization technology, applied in wireless communications, time division multiplexing systems, synchronization devices, etc., can solve the problems of data unavailability, data acquisition and data synthesis errors, large delays, etc., to reduce time The effect of delay, high time synchronization accuracy

Active Publication Date: 2019-01-29
北京智云芯科技有限公司
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  • Abstract
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  • Application Information

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Problems solved by technology

And the delay is not fixed, that is, the same technical principle is used for technical implementation, some devices have a large delay, and some devices have a small delay; or the same device, the delay of two adjacent time synchronizations is also different and the difference is relatively large
This results in a large error in time synchronization among various devices, resulting in large data collection and data synthesis errors. These errors will reduce the availability of data in some application scenarios (such as fault location), and in some applications Scenarios (such as traveling wave protection, lightning wave detection) will cause the data to completely lose the time reference and cause the data to be completely unavailable

Method used

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  • Time synchronizing method based on wireless communication and system thereof
  • Time synchronizing method based on wireless communication and system thereof
  • Time synchronizing method based on wireless communication and system thereof

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Embodiment Construction

[0053] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in combination with specific embodiments and with reference to the accompanying drawings. It should be understood that these descriptions are exemplary only, and are not intended to limit the scope of the present invention. Also, in the following description, descriptions of well-known structures and techniques are omitted to avoid unnecessarily obscuring the concept of the present invention.

[0054] In the prior art, technical solutions for time synchronization through wireless communication technology are as follows: figure 1 shown. In the scheme, general wireless communication technology is adopted, and the same wireless communication channel is used to transmit data and time synchronization information in the way of time division multiplexing. However, this technical solution cannot guarantee the time syn...

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Abstract

The invention discloses a time synchronizing method based on wireless communication and a system thereof, wherein the time synchronizing method comprises the steps of receiving a time synchronizing pulse signal transmitted from a global positioning system by data collecting equipment; transmitting preset time synchronizing information to data acquisition equipment by the data collecting equipment;when the data acquisition equipment monitors a first bit of the time synchronizing information, starting time synchronization; and receiving the time synchronizing information by the data acquisitionequipment. The time synchronizing method and the system thereof can improve time synchronizing precision.

Description

technical field [0001] The invention belongs to the technical field of data sampling, and in particular relates to a time synchronization method and system based on wireless communication. Background technique [0002] The global power backbone network is a three-phase AC power system with a frequency of 50Hz or 60Hz. In order to ensure the stable operation of the power system, it is necessary to accurately measure the voltage and current of the three-phase AC. At present, the main measurement technology is computer-based digital measurement technology, that is, through voltage and current sensors (or transformers), high-voltage, high-current signals (that is, the primary signal of the power system) are converted into small-amplitude signals suitable for measurement. The voltage or current signal (that is, the secondary signal of the power system) is then sent to the ADC (Analog-to-Digital Converter) to be quantized and converted into a digital signal, and the collected sig...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04J3/06H04L1/00H04W12/02H04W12/04H04W56/00H04L9/16H04W12/03
CPCH04J3/0605H04J3/0644H04L1/0061H04W12/02H04W12/04H04W56/001H04L9/16
Inventor 霍晓芳白彩云
Owner 北京智云芯科技有限公司
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