What's the difference between a multi-bureau watt-hour meter and a watt-hour meter?

The so-called radio watch consists of an atomic clock and a radio receiving system. The exact time is sent by the National Time Service Center, received by the radio receiving system and displayed by the central processor. The error of the 300,000-year radio meter will not exceed one second. Simply put, it is a watch that can automatically check the time after receiving the radio waves of standard time information.

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Radio clock is the fifth generation timer after the development of human timing technology, which relays hourglass, sundial, mechanical clock and response clock. The emergence of radio watch technology and products is another revolution in the history of human timing.

Radio watch will be another revolutionary technical product in watch industry after quartz watch replaces mechanical watch and becomes the mainstream of watch market. Watt-hour meter will become the mainstream of China watch market in the future. To this end, the road of scientific and technological innovation will unswervingly go on and make better watches with more scientific and technological value for consumers all over the world.

What are the technical characteristics of watt-hour meters?

Radio watch combines traditional clock technology with modern time-frequency technology, microelectronics technology, communication technology, computer technology and many other technologies. They receive the standard time signal transmitted by the National Time Service Center through the long-wave radio station, and after being decoded by the built-in microprocessor, they automatically calibrate the running time of the timer, so that the time displayed by the radio clock automatically keeps accurate synchronization with the standard time maintained by the country.

1, hard-line movement

Casio independently developed a tough movement, which made the radio wave express higher performance, improved the reliability of the radio wave solar meter, and enabled the most accurate time to be displayed correctly. Through the following four advanced functions, it has created a reliable and lightweight radio wave solar watch.

2. Radio wave receiving function of six global bureaus.

The built-in micro antenna receives the radio signal of standard time and automatically checks the time, date and calendar, so that the watch always keeps the accurate time. Six games refer to Japan (two games), North America, Germany, Britain and China. In China, Casio radio meter automatically receives the radio signal of Chinese standard time every day, which truly realizes high-precision time service. It uses the built-in antenna to receive the standard radio wave signal transmitted by the sender, decodes the received standard radio wave time information inside the watch, and automatically corrects and displays it according to the time information. Accurate time helps users to actually carry out hiking plans.

3. Solar drive system

Convert light energy into driving force and display accurate measured values. Casio's unique solar drive system converts light into power, not only sunlight, but also a weak fluorescent light source into electric energy. The solar panel on the dial can convert light into electricity and store it in a large-capacity battery. It can ensure the stable operation of high-load functions such as radio wave reception and automatic pointer position repair. In the dark, the monitor will disappear for a while because it is equipped with "power saving function"

4. High integration and dense packaging technology

Multi-area radio wave receiving system needs a large number of electronic components. Casio independently developed high integration and high density packaging technology to assemble these electronic components in a limited space. Some electronic components are located by numerical calculation, while others control the interference of radio wave reception to a minimum by precise calculation.

5, pointer position automatic correction function

Use the original operation method to detect and determine the position of the second hand, minute hand and hour hand. If LSI component detects pointer deviation, it will automatically correct it to the correct position.

What is the automatic calibration process of radio wave meter?

After charging the 1 5 battery, the second hand of the radio watch will be positioned at 12 on the clock face. Then, the hour hand and minute hand will be positioned at one of four o'clock, eight o'clock or 12 o'clock. After the three needles are positioned, they begin to receive, and during this process, the three needles are in a static state. After the time is received normally, the pointer quickly catches up with the standard time position, which takes about 4 minutes at the longest. If no signal is received, the three needles are at rest.