Posts Tagged ‘wireless standard’

Wireless explanations

Friday, October 29th, 2010

Wireless-Internet-Security.jpg

Consumers today can choose from WHDI, wireless HD, WiDi, wireless USB and Wi-Fi Direct. Confused? Check out our guide to these emerging wireless streaming-media technologies.

WHDI

Wireless Home Digital Interface, or WHDI, was finalized in 2009 to give consumers a way to link the PC to the TV. Think of it as the wireless equivalent of HDMI. The technology has a latency of less than 1 millisecond, which means it’s good enough not just for watching movies but should also work well to stream games from your browser to the TV.

WHDI can stream 1080p video at up to 3 Gbps (gigabits per second). All you need is a wireless HDI dongle that can plug into your laptop and a little receiver that goes behind the TV. That set will cost about RM464.48 and will be available early next year.

Meanwhile, TV makers such as Sharp and LG are rolling out TVs with built-in support for WHDI standard.

Slowly, the WHDI consortium hopes to convince PC makers integrate WHDI chips into laptops, similar to the way Wi-Fi chips are built in today.

WirelessHD

While other wireless technologies focus on streaming content from the PC to the TV, WirelessHD targets the most common electronic eyesore in homes: the black HDMI cables that snake out from behind the TV towards the set-top box, PC or the DVD player.

If built into TV sets, WirelessHD can offer fast data transfers of up to 10 GBps to 28 Gbps. That makes it the fastest of the lot for point-to-point data transfer.

So far, TV makers such as Panasonic, LG and Vizio have said they will offer wireless-HD–enabled sets by the end of the year. (more…)

A SINGLE Wireless standard for the process industries?

Sunday, August 31st, 2008

http://monitortech.typepad.com/monitor_technologies_tech/images/2008/08/21/dscn2653a.jpgWell here we go again. I just read some editorials in the latest issue of CONTROL magazine. Greed and ego are proving to trump logic and reason once again. Users need a standard, a single open protocol standard for Wireless communications. In existence today with products being marketed offering this capability are Wireless HART…. that’s it. The Honeywell wireless is a proprietary protocol that Honeywell is batting to shove down the throats of the ISA100 committee that have been gathered for three years now trying to develop a standard. While the battle has been quietly, and sometimes not so quietly, been raging in the ISA100 committee, Wireless HART has been working hard and growing its installed base. By the end of 2008 there will be even more products offering it, including the measurement instrumentation giant Endress & Hauser and Emerson Process. I’m with them, Wireless HART is the way to go… and so is wireless in general.

Source: Monitor Technologies

Unplugged: Developing Standards for Wireless Automation

Thursday, June 5th, 2008

To build the most robust and secure wireless devices, suppliers build according to an approved standard. Wireless Internet communications, for example, all comply to the familiar IEEE 802.11 (b, g, and n) standards. Currently, both the HART Communication Foundation (HCF, Austin, TX) and ISA (Research Triangle Park, NC) are involved in putting forth an industrial wireless standard at the basic “bits and bytes” level (i.e., sensors) (see sidebar, “Which wireless?”). HCF released its standard, WirelessHART (HART generation 7), in September 2007. To date, ISA is continuing to develop a draft of its standard, officially noted as ISA 100.11a (often referred to as SP 100).

Both organizations aim for global acceptance, including by the pharmaceutical industry, which thanks to the move toward quality by design, is preparing for increased in-process monitoring. Both HCF and ISA agree that a wireless standard is the right step to advance process automation and communication. Both are aware they are competing to achieve the same objective. And of course both would argue that their standard is the most beneficial, robust, and secure. Read more on this article.