The stadium is equipped with a reliable, accurate, stable and unified GPS sub clock system, which is of great significance for improving the digitalization and intelligent management of the gymnasium.

The clock synchronization system provides a unified standard time information for the stadiums, which is composed of a high precision master clock and a set of clock systems which are controlled by it and coincide with its time.

The master clock of the clock system of the gymnasium provides a unified time to each sub clock through the connection. The child clock is the main terminal of the digital clock system, which directly displays people's standard time information, and each sub clock displays the same time at different locations.

The master clock is the standard UTC time signal or external reference signal provided by the GPS Beidou, which has higher precision. The general timing accuracy is superior to 30ns. After the operation conversion, the clock server device of the standard 1U on the rack can be issued to control the time signal of the sub clock. Generally speaking, the GPS and Beidou dual mode master clock equipment is recommended for the sake of redundant security backup. SYN2136 or SYN are recommended. Type 2151.

Zi Zhong, also known as the time display, according to the actual situation of the site, combined with the project budget can choose different specifications and content. When choosing specifications, you can refer to the following points:

A. determines whether the digital display clock or pointer clock is used to display the contents of the digital display clock (year, month, day, minute, second, week, temperature and humidity).

B. determines the size of the sub clock.

C. determines the single and double sides of the sub clock (corridor, suggest double sided display, other locations depending on the situation).

D. determines the power supply mode of the sub clock (POE power supply or 220V power supply).

Zi Zhong's main role is to provide accurate time service for spectators, venues staff and athletes. The commonly used SYN6109 type sub clock mainly has the following characteristics:

A, NTP network sub clock obtains time information from mother clock, interface mode RJ45, sub clock has wall hanging and hanging.

B, sub clock with backup battery, internal clock can run continuously for 1 years.

C, independent timing accuracy is less than + 0.2 seconds / day, can be issued more than the provincial Metrology Institute testing certificate, through the ISO9001 quality system certification

The appearance of D and sub clock is made of black aluminum profile frame, with light colored plexiglass embedded in it.

E, clock system management software can be detected remotely, management software provides national patent certificate, real-time monitoring of the working status of the sub clock, once the synchronization exception occurs, it will send out the alarm sound, send the notice by mail, etc.

F, free client configuration software, all the sub clock IP can be modified at one time, eliminating the trouble of many direct connections.

G and sub clock can set the start and end time of the screen, and the brightness of the screen. The brightness of the screen can be adjusted to 9 levels. The higher the level, the brighter the digital tube can be adjusted according to the actual situation of the site.

The clock system of the gymnasium ensures fair and fair sports events and is conducive to the maintenance of good order in the gymnasium.

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