RSS is an easy way for sites to share content with other sites (also called syndication content)
With portals popular, people have become accustomed to using search engines to obtain news. Today, a new way of dissemination of information has come to us quietly and we have carefully observed some websites. You may notice that some are marked as "XML" or "RSS" orange icon.
In the face of rushing news, there is no need to spend a lot of time surfing and downloading from news websites. Just by downloading or purchasing a small program, this technology is called RSS (Resave Simple Syndication). RSS collects and organizes customized news, delivered directly to your computer in the format, location, time, and method you want. News sites and those online diary authors have realized the fun brought about by RSS feeds, which also makes it easier for readers to track RSS feeds. RSS is an acronym for English terminology and is considered to have several different sources in English and is different. The technical community does different interpretations. It can be either Rich Site Summary, RDF Site Summary, or Really Simple Syndication. There are now Netscape, 1.0 (RSS-DEV version), and 0.9x and 2.0 (UserLand Software version) 0.9x and 2.0. However, almost all programs that support RSS can browse different versions of RSS.
RSS is a text-based format. It is a form of XML (Extensible Markup Language). Usually RSS files are marked as XML, and RSS files (usually referred to as RSS feeds or channels) usually contain only a simple list of items. In general, each project contains a title, a brief introduction, and a URL link (such as the address of a web page). Other information, such as date, creator's name, etc., is optional.
RSS is an easy way for sites to share content with other sites (also known as syndicated content), and is often used for news and other sites that are arranged in a sequence, such as a blog. The introduction of a project may include a full introduction of the news, Blog post and so on. Or just extra content or a brief introduction. Links to these items usually link to the entire content. Internet users can read the content of websites that support RSS output without turning on the website content page by using RSS-enabled news aggregation tool software (such as NewzCrawler, FeedDemon) on the client. The website provides RSS output, which helps users find the content of the website updated.
How does RSS work? First of all, you generally need to download and install an RSS reader, then subscribe to the content of the news section you are interested in from the list of aggregating news directories provided on the website. After you subscribe, you will get the latest content of the subscribed news channels in time. For the average user, using RSS to subscribe to news can be as simple as using Outlook Express to receive subscribed emails; for developers of Web applications, the working process of RSS is not that complicated, at least compared with most other common Webs. Technology is more easily understood and implemented. Some people think that RSS's original intention seems to be a fatal blow to the mailing list subscription service. This is almost inevitable from the perspective of how RSS is used. However, from the actual effect point of view, the most popular application of RSS is not the centralized subscription of commercial information, but information aggregation realized by individuals through the Web. A typical example is that the bloggers of various countries first became the most popular RSS applications. crowd.
1. Dimmable LED High Bay Light
Dimmable LED High Bay Light can be adjusted the brightness of the light, including 0-10v dimmable,Dali dimmable, Triac dimmable and Zigbee dimmable.
0-10V Dimmable:
Used as an early fluorescent dimming system and still used today, 0-10V dimming has been adapted to become a reliable LED dimming control protocol.0-10 V is one of the earliest and simplest electronic lighting control signaling systems; simply put, the control signal is a DC voltage that varies between zero and ten volts. The controlled lighting should scale its output so that at 10 V, the controlled light should be at 100% of its potential output, and at 0 V it should at the lowest possible dimming level.
Dali dimmable:
A basic system could consist of a few light fittings and a switch connected to a DALI group controller. The switch provides on/off control and up/down dimming of the fittings. Minimal configuration is required and ballasts do not need to be individually addressed.A grouped system consists of multiple ballasts individually addressed on a DALI Line Inputs on a Line Controller or a group controller can be configured to provide switching and dimming as required.
SCR Dimmable:
A SCR is a four-layer solid state device that controls current. In the normal [off" state, SCR restricts current to the leakage current. When the gate-to-cathode voltage exceeds a certain threshold, SCR turns [on" and conducts current. A SCR will remain in the [on" state even after gate current is removed so long as current through the device remains above the holding current. Once current falls below the holding current for an appropriate period of time, the device will switch [off". If the gate is pulsed and the current through SCR is below the holding current, SCR will remain in the [off" state.To achieve the dimming effect using SCR dimming technique, first, a RC phase shift is used to delay triggering the gate-to-cathode voltage. There will be a phase-cutting and the Root Mean Squared Voltage VRMS is modified. The symmetric characteristic of DIAC (DIode for Alternating Current) can be used to trigger TRIAC (TRIode for Alternating Current) symmetrically. Then, the dimming effect can be achieved by varying the R1 value that changes the phase angle for conduction.
Zigbee:
Zigbee is a kind of brand-new, focus on low power consumption, low cost, low complexity and low rate of short-range wireless communication technology.Is also a big focus in the embedded application.
Dimmable LED High Bay Light
Dimmable LED High Bay Light,0-10V Dimmable LED High Bay Light,Dali Dimmable LED High Bay Light
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