Shulou(Shulou.com)11/24 Report--

Thanks to CTOnews.com netizen jk5248 for the clue delivery! CTOnews.com, October 12, according to the Jianghanguan Museum, a few days ago, the Jianghanguan Museum upgraded the function of the electronic tower clock system and introduced Beidou timing unit to ensure the accuracy of the tower clock.

According to reports, Jianghan Guan Pagoda clock is not only the memory of Wuhan people, but also a national first-class cultural relic. It was built in 1924. In order to reduce the wear and tear of big clock parts caused by long-term operation and realize the protection of tower bell cultural relics, Jianghanguan Museum adopted the electronic tower clock system and used GPS for positioning time service when preparing for its construction. And this update of the tower clock system not only promotes the overall function of the system, but also improves the overall function of the system. The domestic Beidou satellite navigation system has been replaced and the heavy equipment of a big country has been successfully applied to the work of cultural protection.

CTOnews.com learned that the Beidou satellite system is the third mature global satellite navigation system independently developed by China after GPS of the United States and GLONASS of Russia. On July 31, 2020, the Beidou-3 global satellite navigation system was officially launched. The global positioning accuracy of Beidou 3 is better than 10 meters, the speed measurement accuracy is better than 0.2 meters per second, the timing accuracy is better than 20 nanoseconds, and the service availability is better than 99 percent. At present, a total of 45 Beidou satellites are providing services in orbit. China's space and ground infrastructure have relatively perfect service capabilities, and Beidou industrial application system has been basically formed.

The new tower clock system is composed of Beidou time service unit, tower clock control system, tower clock drive system, lighting control system, state acquisition system, monitoring host and so on.

The ▲ map receives the Beidou satellite signal in real time from the Beidou time service unit of Jianghanguan Museum, decodes it, and provides the standard time to the system. As the top time source of the whole system, the tower clock control system uses AMR single-chip satellite computer technology to control the travel time and report time, which ensures the accuracy and reliability of the travel time, and sends the travel time signal to the tower clock drive system, and the driving system drives the sub-clock to travel time after receiving.

The state acquisition system detects the running state of the control system and the state parameters such as voltage, current, temperature and humidity of each control signal. The monitoring host has the function of centralized maintenance and self-diagnosis by accessing the network monitoring system. Manage the performance, fault and safety of the system. All the parts work closely together to ensure the accurate operation of the tower clock.

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