中文
English

Application of WiFi to automatic time clock

小刘
2019-08-17
Source:西安同步原创

Wifi automatically only needs to receive the WiFi signal to the clock, so it can be applied to places where sports facilities, hospitals and other inconvenient wiring can be used.

The SYN6123 wireless WiFi clock is a network sub clock that realizes NTP timing information through wireless WiFi Technology (information content: year, month, day, time, minutes, seconds). Zi Zhong has a backup battery which does not display when the power is cut off, but the internal clock can run continuously for 72 hours, that is to say, the power supply is restored within 72 hours, so there is no need to calibrate the time.

Wifi clock can match NTP time server in practical application, and can only purchase time display screen, and get time through Internet time server. The advantage is that there is no need for any wiring, only WiFi can be used to modify the configuration through the webpage management, and specify the superior server. After the power distribution is configured, the NTP mode is automatically connected to the network without time adjustment. But compared with the wired NTP network master clock system, the WiFi is more stable and accurate.

It is generally recommended that if a clock system is needed in hospitals, gymnasiums, airports and other buildings, the wiring is not a problem. It is recommended that the NTP network sub master clock system should be preferred. If the old building is completed for a long time, the new clock is added, whether the wiring is evaluated from manpower or material resources or the scene is not able to achieve wiring, the user will choose the WiFi automatic time clock which only needs to supply power.

 WiFi automatic time clock.Png

In addition, when determining the WiFi clock, we need to combine the selection of the scene, and we need to take into account the following factors:

1, Wifi clock from local time server or from the Internet to get time;

2. Determine the display contents of the sub clock (year, month, day, hour, minute, second, week, temperature, humidity).

3. Determine the size of the sub clock (the actual size is determined according to the digital tube).

4, determine the color of the digital tube (the standard is mainly red, and recommend red on the intuitive and generous).

5, to determine the single and double sides of the sub clock (corridors, halls, nursing station and so on) suggest choosing two sides, other locations depending on the situation.

There are few manufacturers of WiFi clock on the market. Basically, they are micro enterprises or even small workshops. The matching production equipment is still very primitive. Many of them are manual welding, and there is no guarantee for reliability and after-sale. There are customer feedback on a treasure clock prototype, which is cheap, but the timing accuracy is very poor. Like the calendar of the family, there is no way to smoothly accept the project, and finally we can only find our supply.

The core board modules built in Xi'an's synchronous WiFi clock are batch automatic production, and the products are beautiful and stable. Whether wired or wireless clock before the factory is strictly tested, a variety of experiments. For example, high and low temperature test, vibration test, light and brightness test, must comply with the requirements before signing up for warehousing and shipment. At present, all clock manufacturers have no way to ensure that it is done.

Here, we need to explain that the WiFi clock is not recommended in the school examination room, and the NTP network sub clock is the first choice in our examination room. Because the signal shielding device has become an essential tool for the examination room to escort the information safety of each examination room, while shielding the mobile phone signals, WiFi signals will be shielded and unable to communicate normally.

The copyright of this article belongs to Xi'an in all respects, respecting originality, strictly prohibit manuscript, unauthorized, no reprint, copyright, infringement must be investigated!

Read183
share