Time synchronizing system
DCFirst Claim
1. A time synchronization system comprising:
- a GPS (Global Positioning System) receiver for receiving a time signal from a Global Positioning System (GPS), and outputting a UTC (Universal Time Coordinated) synchronization reference pulse signal synchronizing with UTC and a UTC synchronization absolute time signal composed of a serial signal representing an absolute time; and
a time signal distributor for generating a reference time signal by synthesizing the UTC synchronization reference signal and the UTC synchronization absolute time signal, and transmitting the reference time signal in distribution to a plurality of distributed control oriented terminal device, wherein said time signal “
distributor is a hardware component that has no software processing delay and synchronizes”
a rising edge of the UTC synchronization reference signal with UTC, and transmits the time synchronization signal to each of said terminal devices in a fixed period.
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Abstract
A time synchronization system comprises a GPS (Global Positioning System) receiver for receiving a time signal from a Global Positioning System (GPS), and outputting a UTC (Universal Time Coordinated) synchronization reference signal synchronizing with UTC and a UTC synchronization absolute time signal, and a time signal distributor for generating a reference time signal synchronizing with UTC from the synchronization reference signal and the absolute time signal, and transmits this reference time signal in distribution to a plurality of distributed control oriented terminal devices. The time synchronization between the plurality of distributed control oriented terminal devices can be thereby taken.
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Citations
6 Claims
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1. A time synchronization system comprising:
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a GPS (Global Positioning System) receiver for receiving a time signal from a Global Positioning System (GPS), and outputting a UTC (Universal Time Coordinated) synchronization reference pulse signal synchronizing with UTC and a UTC synchronization absolute time signal composed of a serial signal representing an absolute time; and
a time signal distributor for generating a reference time signal by synthesizing the UTC synchronization reference signal and the UTC synchronization absolute time signal, and transmitting the reference time signal in distribution to a plurality of distributed control oriented terminal device, wherein said time signal “
distributor is a hardware component that has no software processing delay and synchronizes”
a rising edge of the UTC synchronization reference signal with UTC, and transmits the time synchronization signal to each of said terminal devices in a fixed period. - View Dependent Claims (2, 3, 6)
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4. A time synchronization synchronizing system comprising:
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a GPS (Global Positioning System) receiver for receiving a time signal from a Global Positioning System (GPS), and outputting a UTC (Universal Time Coordinated) synchronization reference pulse signal synchronizing with UTC and a UTC synchronization absolute time signal composed of a serial signal representing an absolute time; and
a time signal distributor for generating a reference time signal by synthesizing the UTC synchronization reference signal and the UTC synchronization absolute time signal, and transmitting the reference time signal in distribution to a plurality of distributed control oriented terminal devices, wherein if impossible of receiving the UTC synchronization time signals from an internal reference signal generator for generating an internal reference signal synchronizing with the UTC synchronization reference signal, an internal absolute time signal generator for generating an internal absolute time signal equal to the UTC synchronization absolute time signal and the GE'"'"'S receiver, said signal synthesizing unit of said time signal distributor generates an internal time signal by synthesizing the internal reference signal and the internal absolute time signal, and transmits this internal time signal as a substitute for the reference time signal in distribution to said respective terminal devices. - View Dependent Claims (5)
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Specification