High-precision time synchronizing apparatus
A time synchronization device, high-precision technology, applied in synchronization, measuring devices, clocks driven by synchronous motors, etc., can solve the problems of long time for each synchronization adjustment, real-time monitoring of clock signals, etc.
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specific Embodiment approach 1
[0015] Specific implementation manner 1: The high-precision time synchronization device of this embodiment is composed of a timing clock source 1, a synchronization trigger 2, an atomic clock 3, a phase comparator 4, an industrial computer 5 and a signal source 6, wherein
[0016] The synchronization trigger 2 receives the timing signal from the timing clock source 1 and divides it into two outputs after shaping, one is output to the atomic clock 3 as the synchronization signal, and the other is output to the phase comparator 4 as the phase A input signal;
[0017] The atomic clock 3 synchronously outputs a second pulse (1PPS) signal and a frequency reference signal according to the input synchronization signal, the second pulse signal is respectively output to the phase comparator 4 as the B-phase input signal, and output to the signal source 6 as the clock reference signal; The frequency reference signal is respectively output to the phase comparator 4 as a working reference fre...
specific Embodiment approach 2
[0028] Embodiment 2: The difference between this embodiment and the high-precision time synchronization device described in Embodiment 1 is that the synchronization trigger 2 is composed of a high-speed digital comparator 21, a single-chip computer 22, and a CPLD 23. The high-speed digital comparator 21 The timing signal input by the timing clock source 1 is reshaped and divided into two identical signals and output to the CPLD23. The CPLD23 reshapes the two input signals and outputs them to the atomic clock 3 and the phase comparator 4 respectively; the single-chip 22 receives via the RS232 serial data bus According to the control signal sent by the industrial computer 5, the single-chip 22 outputs the signal to the CPLD 23 to control the CPLD 23 to output or stop the output signal to the phase comparator 4 according to the control signal.
[0029] In the synchronous trigger 2 of this embodiment, the input signal is formed into a pulse signal with a rising edge of better than 10 ...
specific Embodiment approach 3
[0032] Embodiment 3: The difference between this embodiment and the high-precision time synchronization device described in Embodiment 1 or 2 is that it also includes multiple timing clock sources 1, and the multiple timing clock sources 1 respectively output timing signals to Synchronous trigger 2, said synchronous trigger 2 selects a signal sent by time service clock source 1 according to the received selection command signal sent by industrial computer 5 for shaping and output; industrial computer 5 obtains synchronous trigger through RS232 serial communication bus 2 The frequency of the output signal of the selected channel of timing clock source 1, and when the frequency is outside the set range, the synchronization trigger 2 is sent a command to select another channel of timing clock signal.
[0033] The high-precision time synchronization device of this embodiment includes multiple timing clock sources 1, and the multiple timing clock sources 1 can be the same clock source ...
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