An integrated portable time synchronization device and its method for moving clocks
A time synchronization device and a portable technology, which is applied to instruments using atomic clocks, radio-controlled timers, instruments, etc., can solve the problems of increasing engineering application difficulty and time, cumbersome traction process, and long antenna feeder lines, etc., to shorten the preparation work The effect of time, small size and light weight
Active Publication Date: 2019-08-02
SHANGHAI MUNICIPAL ELECTRIC POWER CO +2
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Problems solved by technology
[0003] However, for applications such as underground power distribution stations, the time synchronization device is generally not configured on site, and the antenna must be erected in an open place (such as outdoors or on the roof), which is relatively far away from the test device. The feeder is long, and the traction process is too cumbersome and time-consuming, which increases the difficulty and time of engineering application
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[0045] The present invention will be further described below in conjunction with the accompanying drawings.
[0046] Such as figure 1As shown, the battery management module is connected to the DC power input terminal, the battery module and the power management module. On the one hand, the battery management module manages the charging and discharging of the battery module, and on the other hand, the output voltage is up to The power management module switches the power supply circuit of the output voltage; the power management module supplies power to each module in the time synchronization device;
[0047] When the 5V DC input power is connected, the battery management module converts the 5V DC input voltage into a 4.2V DC voltage, on the one hand to charge the battery module, and on the other hand to supply power to the power management module; when the 5V DC input power is disconnected , the battery management module switches the power supply circuit of the power manageme...
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The invention relates to an integrated portable time synchronization device and a clock transportation method thereof. The time synchronization device is composed of a plurality of modules which are an antenna module, a satellite signal receiving module, a rubydium atomic clock module, a first frequency division module, a second frequency division module, a frequency multiplication module, a countlatch module, an IRIG-B(DC) encoding module, a clock regulating module, an RS485 interface chip or an optical fiber transmitter, a battery module, a battery management module and a power management module. The battery module and the rubydium atomic clock module which the device has can be synchronized to a satellite navigation system and discipline a rubydium atomic clock under the conditions ofan outdoor open zone without a power supply, so that the rubydium atomic clock can maintain very high time precision within a very long time, and then a user returns to the inside of a room to use thedevice to perform time service on a testing device (the process is called clock transportation), and the on-site workload is greatly reduced. The device is of an integrated structure, has all components required for the clock transportation, and the device is small in size, light and convenient to carry.
Description
technical field [0001] The invention relates to an integrated portable time synchronization device and a clock moving method thereof, belonging to the technical field of power system time synchronization. Background technique [0002] When testing the secondary equipment of the power system, the test device is required to have time synchronization function in many applications, such as line differential protection test, multi-terminal ranging system test, PMU test, merging unit test, etc. The time reference signal of the test device is generally divided into a wired time reference signal and a wireless time reference signal. The wired time reference signal comes from the time synchronization device at the site (substation) and is connected to the test device through a cable or optical cable; the wireless time reference signal comes from the satellite. The wireless signal of the navigation system is received through a special antenna and connected to the test device through t...
Claims
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IPC IPC(8): G04F5/14G04R20/02
Inventor 沈冰陈冉陆骏任波陆伟
Owner SHANGHAI MUNICIPAL ELECTRIC POWER CO