The earliest clocks in the world can be classified as tower clock series. Because of the limitations of technical conditions at that time, the clock timing tools manufactured at the beginning were often huge in size. In China, I have to mention the Leaky Armillary Sphere designed and manufactured by Zhang Heng in the Eastern Han Dynasty. It uses a gear system to connect the clepsydra and the clepsydra. Dripping water from the clepsydra pushes the clepsydra to rotate evenly. This is the earliest one. The object with tower clock phenomenon.
Of course, modern clocks and watches are imported products from the West. Western clock technology developed later than China. The earliest mechanical clock was invented in the 13th century. This kind of clock frame is placed on a high tower and dropped by a heavy hammer. The force drives the gear, and the gear drives the pointer to move, and the "escapement" is used to control the speed of the gear to get a more correct time. The timekeeping system is completely manpowered to strike the clock on the hour.
Later, Danti of Italy produced the first mechanical clock with a simple structure, which made the tower clock mature in structure. After entering the electronic age, the electronic tower clock also appeared. my country's electronic tower clock has been developed along with a large number of infrastructure constructions, and has reached the same level in the world in terms of technology and application.
The electromechanical tower clock is composed of core control, sub-clock and clock face. The core control system of the tower clock includes the master clock, GPS satellite receiver, time signal control, lighting control and other components. The master clock or GPS receiver is the time base of the entire timing system. The control system outputs signals to direct the operation of the slave clocks on each side. At the same time, the control system automatically controls the lighting and timekeeping equipment to run on time according to the time signal of the master clock.
The tower clock was the first product invented in my country, but we did not inherit it and later introduced it from the West. After a century of development, my country's tower clock technology is now at the forefront of the world.
