PTP precise time protocol time service module in electric power time service and realizing method thereof

A precise time protocol and timing module technology, applied in electrical components, time-division multiplexing systems, multiplexing communications, etc., can solve problems such as potential safety hazards, precision deviations, difficult and expensive upgrades

Active Publication Date: 2017-06-09
TIANJIN 764 COMM AIRMANSHIP
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AI Technical Summary

Problems solved by technology

[0003] The current power system basically uses the GPS clock system for synchronization and time service. This method has certain potential safety hazards, and later upgrades become very difficult and expensive.
Alth...

Method used

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  • PTP precise time protocol time service module in electric power time service and realizing method thereof
  • PTP precise time protocol time service module in electric power time service and realizing method thereof
  • PTP precise time protocol time service module in electric power time service and realizing method thereof

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Embodiment Construction

[0014] Below in conjunction with accompanying drawing for further explanation,

[0015] Such as figure 1 As shown, a PTP precision time protocol timing module in power timing, including a main control chip, a time stamp PHY chip, a JTAG debugging chip, a transformer, a status indicator light, a clock, and an indicator light. The main control chip adopts the MK60FN1M0VLQ12R chip of Freescale Company , the chip integrates CPU, RAM, NORFLASH and network MAC controller. The time stamp PHY chip adopts TI's DP83640 chip. PHY chip, time stamp The PHY chip is bidirectionally connected to the transformer, unidirectionally connected to the status indicator, and the clock is unidirectionally connected to the JTAG debug chip and the main control chip.

[0016] Such as figure 2 , 3 , 4, 5, and 6, the entire PTP network communication has five tasks: the initial task of the system, the task of blinking the indicator light, the task of receiving the serial port, the task of responding to ...

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Abstract

The invention relates to a PTP precise time protocol time service module in electric power time service and a realizing method thereof; the PTP precise time protocol time service module comprises a main control chip, a time stamp PHY chip, a JTAG debug chip, a transformer, a state indicator lamp, a clock, and an indication light; an ARM chip receives the time information of a main control unit through a RS232 interface, and resolves to obtain time second information; the main control unit sends 1PPS, the ARM chip writes the time second information into the time stamp PHY chip, and the local time source is synchronized; the clock respectively provides a running clock for the ARM chip and a RMII communication clock source for the time stamp PHY chip; the JTAG debug chip debugs program operations and sets breakpoints; real time analysis is carried out; a PC machine obtains the ARM chip output debug information; when the ARM runs a PTP protocol operation task, the time stamp PHY chip uses a transformer + RJ45 interface to send a protocol message to the outer side. The technical effect can reach the nanosecond level precision.

Description

technical field [0001] The invention relates to a time service module in electric power time service, in particular to a PTP precision time protocol time service module in electric power time service and an implementation method. Background technique [0002] Many systems today are inseparable from the requirements of time synchronization, such as test and measurement systems, power systems, communication systems, industrial automation and distributed systems, etc., and with the expansion of the system scope and the development of decentralized control, each control node Time synchronization is becoming more and more important, especially in power systems. Due to the extensive and dispersed geographical scope, this requires that the actions of each device in the system be performed in accordance with a unified timing and beat to ensure that the system is coordinated and orderly. [0003] The current power system basically uses the GPS clock system for synchronization and tim...

Claims

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Application Information

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IPC IPC(8): H04J3/06
CPCH04J3/0638
Inventor 张春岭杨娜史占强王健
Owner TIANJIN 764 COMM AIRMANSHIP
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