Volume: 3 Issue: 1
Date: February 17, 2009
 
  From the Lab  
Full Duplex Wireless and Acknowledge Protocols

Have you ever had one of those issues that you keep scratching your head over? I came across just such a case recently.

We had a customer who installed a megapixel camera in a parking lot. It was about a 500 foot run with clear line of sight and no interference. The camera needed about 28Mbps of bandwidth, and no jitter.

The customer brought up a 40MHz link using 16QAM modulation and had a great signal. So he should have about a 60Mbps pipe or more to run the video over. More than enough.

Well, the stream from the camera was just not stable, even though the wireless link was.

We got a hold of an identical camera from the manufacturer and started to test. We could replicate the problem easily.

After putting a packet sniffer on the link (Wireshark) we could see that the transport protocol between the camera and the NVR was TFTP. TFTP is an "odd duck" in that it is an acknowledged UDP protocol. Every frame sent by the camera had to be acknowledged by the NVR.

Unfortunately, wireless networks are, for the most part, half duplex. This means that while one router is sending data, the other is receiving. The receiving router cannot send an acknowledgement until it switches from receive to transmit. So if data is received from the wired Ethernet port while the wireless is port is receiving data, the data from the Ethernet port is buffered (stored) until the wireless port returns to transmit.

The switching time and buffering delay is measured in milliseconds, but is long enough to cause problems for many time sensitive applications, like multi mega pixel cameras. So even though I may have plenty of bandwidth, it is the delay time that causes problems.

There are a few things you can do to correct this problem. First would be to use an unacknowledged protocol like multicast over your wireless links. This eliminates the need for traffic going back against the stream of your video.

The next thing, if you can't change the protocol, is to use a full duplex link. This is what we did with the mega pixel camera.

By using a router that has two radio interfaces, and special interface bonding drivers, we can place one radio into transmit only operation and the other in receive only operation. This feature is available on the HauteWRAP family of products. The radios need to have broad RF channel separation so that they do not interfere with each other.

Once configured, the full duplex link reduced the acknowledgement return time to a level that the camera and NVR were able to stay connected without any crash.

So even when you have more than enough bandwidth, you still may not have the right timing. Try full duplex. Call HauteSpot Networks for advice on your application requirements.
 
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HauteWire

Links to Wireless Solutions

Surveillance    Broadcast    Public Safety    Military    Hospitality

Wireless Surveillance is Heating Up!

In this issue:

What is contained in the "Economic Stimulus" Package for Surveillance and Infrastructure Security?

Senator Robert C Byrd, D-WVa, who serves as the Chairman of the Senate Appropriations Subcommittee on Homeland Security identified over $5 billion in homeland security investments that are contained in the economic stimulus package that was approved today by the Senate.
  
"The bill includes essential increases for construction and repair of ports of entry on our borders, Coast Guard shore facilities and critical assets, and consolidation of the Department's (DHS) headquarters. The Homeland Security title accelerates deployment of critical technology for border and airport security. Additionally, funds are provided for state and local security investments, including: construction of fire stations, emergency operation centers, and fusion centers; grants for rail, transit, and port security; and security upgrades for high-risk infrastructure, such as bridges, tunnels, dams, and levees."
 
"These funds can be spent quickly, will provide greater safety for our homeland, and will generate over 62,000 private sector jobs across the country" said Byrd.
 
Highlights of the Homeland Security component of the stimulus package that are relevant to the surveillance market include:

  • $800 million for U.S. Customs and Border Protection (CBP). Funds would be used for construction and repair/alteration requirements at land border ports of entry/federal inspection facilities. Significant increases in trade and vehicle traffic, as well as the hiring of new inspection personnel at the ports of entry, have placed strains on the many out-dated land border ports of entry. This will fund access control and surveillance applications at our ports. Port automation and surveillance is expected to be a key area of growth for HauteSpot Networks, since much of the cameras used will be going into locations which are difficult, if not impossible to wire;
  • $200 million for US Customs and Border Protection to expedite development and deployment of border security technology on the Southwest border. HauteSpot Networks is already engaged with a customer who plans on testing our technology along the Southwest border with Mexico. We are also talking with customers on the Mexican side of the border as well;
  • $1.2 billion to the Transportation Security Administration (TSA) to accelerate procurement and installation of baggage screening and checkpoint security equipment at airports across the country. Again, there will be many opportunities at airports, ship ports, bus depots, and railway stations for wired and wireless surveillance. HauteSpot is already installed at regional airports, rail yards, and ports. Keep us in mind when you go after these projects;
  • $500 million to FEMA for mitigation of critical infrastructure vulnerabilities to all potential hazards. The Department of Homeland Security maintains a classified list of critical infrastructure (bridges, tunnels (road and transit), dams, and levees) that are at risk of severe consequences in the event of a disaster. Remote surveillance and security for these facilities is critical. Many cannot easily be wired for surveillance;
  • $500 million to the Federal Emergency Management Agency (FEMA) for the construction and renovation of fire stations. Many of these agencies will also be looking for incident command management capabilities which remote video and weather data are part of. Our HauteWIND products are ideal for these applications;
  • $250 million to FEMA for the construction and renovation of emergency operations centers and state and local fusion centers. These centers will require backup emergency data, video and voice communications systems. HauteSpot products are ideal for creating redundant connections between emergency command centers;
  • $100 million for port security grants and USD100 million for rail and transit security grants. This is in addition to the money allocated for TSA for passenger security. Again, HauteSpot has the wireless infrastructure components critical for these projects;
  • $100 million for the Emergency Food and Shelter Program, which funds grants to non-profit and faith-based organizations at the local level to supplement their programs for emergency food and shelter to provide for the immediate needs of the homeless. HauteSpot wireless networks can be easily deployed as mobile mesh or point to multipoint for voice and data communications, as well as Internet Access. Remember that HauteSpot's TDMA Like Protocol (TLP) is ideal for voice and can be used with TDM psuedowire devices for T-1 link replacement;
  • $27.8 million to accelerate replacement of U.S. Immigration and Customs Enforcement (ICE) outdated interoperable communications systems by procuring U.S.-manufactured equipment. HauteSpot Networks equipment is made in USA;
  • $15 million for security systems and law enforcement upgrades for all Federal Law Enforcement Training Center (FLETC) facilities. HauteSpot products like our HauteSHOT wireless video encoder are ideal for training supervision. Our gear has already been integrated in target systems used by the military;
  • $14 million for cyber security research. Funds will be used to address cyber security challenges facing critical infrastructure sectors. HauteSpot Networks products support the latest in cryptography, tunneling, and security features; and
  • $6 million for rapidly deployable interoperable communications. Our Nation's first responders still cannot communicate during a major disaster or event with existing infrastructure. HauteSpot Networks is a pioneer in the area of wireless mobile networks for first responders. Working in partnership with software system manufacturers we have already delivered portable systems for emergency response.

 

Año Nuevo SNR Seal Cam Goes HD with HauteSpot:

Seal CamThe California State Department of Parks has recently completed an upgrade to the Seal Cam at Año Nuevo State Natural Reserve to move to high definition.

Año Nuevo State Natural Reserve is famous for the Elephant seals, sea lions, and other marine mammals that come ashore to rest, mate, and give birth in the sand dunes or on the beaches and offshore islands.

In order for visitors to get an up-close view of the Elephant seals on the island, a new HD mega pixel camera was installed on the island, and a HauteSpot Networks wireless link was set up between the Visitors Center and the camera, approximately 1 mile away over water. The camera provides a 30fps at 1280(H) x 1024(V) resolution image and consumes about 30Mbps of bandwidth. Small Seal Cam

The camera, pan tilt zoom controller, and HauteSpot HauteROUTER HR-IXPSXP wireless router are all powered by a solar power system. Rangers in the Visitors Center can remotely control the camera, pointing and zooming it as necessary to view the seal activity. A large panel 1080p HD monitor in the Visitors Center allows visitors to see the action up close.

A lower resolution stream is sent from the Visitors Center out over the Internet for remote viewing.

Because of the remote location of Año Nuevo State Natural Reserve, high speed broadband access to the Internet is not currently available, limiting the image resolution for Internet viewers. HauteSpot Networks is actively investigating using it's wireless technology to deliver more bandwidth to the site. If any corporate sponsors would like to assist in this effort, contact us for more details.

Click the image on the right for a larger view.

New Sales Reps:

Last month we expanded our sales team to include:

Campion Sales -

Representing HauteSpot Networks in Texas, New Mexico, Oklahoma, Arkansas, and Louisiana is Campion Sales. Campion Sales is a partner with the top manufacturers in the security and surveillance industry. Lynn, Scott and Rich have been in the surveillance business for a long time and can offer solutions for the most complex problems. They can be reached at 972-471-3466.

ComRon -

Representing HauteSpot Networks in Israel is ComRon. ComRon is led by Roni Herzel who offers solutions for not only surveillance, but also datacom, telecom and homeland security. ComRon can be reached at 972-3-5406942.

Of course, if you are in other areas, you can reach any of our capable sales reps including:

North East:
Technology Representatives, Inc.

Mid Atlantic:
Electronic Technology Associates LLC

West:
C&V Representatives, Inc.

Europe:
Rowecom Limited

HauteSpot Products Announces Distribution Availability

Last month HauteSpot Networks finalized distribution capabilities with both Anixter and Graybar Electric. In both cases, customers can order HauteSpot products through these distributors under their normal terms. Customers may need to talk to HauteSpot sales reps in order to determine the proper equipment for their needs. They can then provide the list of material to either of the distributors for fulfillment. Since this is a new capability, not all locations at the distributors may be aware of how to order our products. Please refer them to call HauteSpot Networks directly for fulfillment details.

HauteSpot Networks Joins FBI Infragard

InfragardLast month HauteSpot Networks applied for, and was accepted into, the Federal Bureau of Investigations InfraGard Program. InfraGard is an information sharing and analysis effort serving the interests and combining the knowledge base of a wide range of members. At its most basic level, InfraGard is a partnership between the FBI and the private sector. InfraGard is an association of businesses, academic institutions, state and local law enforcement agencies, and other participants dedicated to sharing information and intelligence to prevent hostile acts against the United States. InfraGard Chapters are geographically linked with FBI Field Office territories. Each InfraGard Chapter has an FBI Special Agent Coordinator assigned to it, and the FBI Coordinator works closely with Supervisory Special Agent Program Managers in the Cyber Division at FBI Headquarters in Washington, D.C.

Before becoming a member, a background screening of the applicants is required. Once accepted, members are provided with updates on infrastructure security, alerts, training opportunities, and a secure communications infrastructure designed to protect sensitive, but not classified, communications.

To learn more about InfraGard, visit their web site or contact your local FBI office.

Bob Ehlers to Present Open Wireless Surveillance Architecture at ISC West 2009

On Wednesday, April 1st at 2pm, Bob Ehlers will be presenting a seminar on Open Standard Video Wireless Surveillance as part of the International Security Conference and Expo West 2009 in Las Vegas.

ISC WestSummary: "Extending real time access to video surveillance sources is becoming a huge issue. It is no longer sufficient to just record surveillance video on an NVR. Security officers, law enforcement, public safety, DHS have requirements to view real time video surveillance from their laptops, PDAs, and mobile phones from any location around the world. This means the need to support a variety of devices, resolutions, frame rates, encoding standards and data rates. Using industry standards like MPEG4 H.264, RTP, RTSP, as well as de facto standards like Flash, Windows Media Player and Quicktime, it is possible to provide secure access to real time video surveillance to virtually any device anywhere. This session we will explore the architecture for delivering this capability. Suitable for IP/IT professionals, integrators."

We hope to see you at this informative and educational presentation. 

 
Investors Update

To learn more about why we are winning these events, contact investors@hautespot.net for more information.

Manufacturers Reps and Resellers
Effective October 1, 2008 we have set up a new reseller pricing program which includes incentives for volume purchases and quarterly volume based rebates. For more information on the new pricing, please contact Charlotte Chang at 805-541-9477x21.

We are always looking for capable Value Added Resellers, System Integrators and Security Installers to resell our products. Please contact us if you have experience in the security, public safety, law enforcement or broadcast markets and are interested in working with us. We prefer VARs and Integrators who are already familiar with IP cameras, networking and similar technologies.

We provide an aggressive discounts, terrific support, and great products that really work.

 

 
 

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