Thursday, October 30, 2008

Inalambricamente, la seguridad casera se convierte en algo de "hágalo usted mismo".


Web2.0, IP Basics.
Wirelessly, Home Security Becomes a Do.It.Yourself (DIY) Project
By JOHN BIGGS
Published: October 29, 2008



Photographs from InGrid
Clockwise from upper left, the InGrid Home Security system uses peel-and-stick wireless sensors for windows and doors. A keypad console can be placed anywhere in the house. The keychain remote turns the alarm system on and off, and a handset works as a cordless phone and a controller.

WHEN Ken Jongsma built his new house, he found that the builders had already installed a basic security system — sometimes called a prewire. A tinkerer and engineer, Mr. Jongsma, 50, decided to upgrade and monitor the system on his own.

"What most people do not understand is that a residential alarm prewire is a come-on by alarm companies to get you to sign up for their — usually expensive — monitoring," he said.

Until recently, Mr. Jongsma's attempt to install and maintain his own security system would have been impossible. Now, however, with a little knowledge, even nonengineers can add a security system to their homes for less than a standard prewired installation by a professional.

Most security systems consist of two parts: the hardware and the monitoring service. For decades, the hardware (window and door sensors and motion detectors, for example) was often installed by professionals, as it required some wiring and cabling.

And while those sensors may have been connected to a siren or flashing lights, the real benefit to having an alarm has always been that someone will call the police when it goes off. For many years, that was also something the alarm companies were happy to provide — witness the countless television ads that have featured thoughtful and hyper-competent people staffing an alarm company's command HQ, ready to call the police and offer reassurance to the homeowner.

As King Gillette discovered with razors and cellphone providers have popularized with monthly fees, the real money to be made in alarms is not in the hardware — it's in the monitoring. The hardware can be subsidized by the security company almost to the point where it is free, but paying an alarm service about $30 a month for years and years to watch over your system more than makes those companies whole.

Newer systems, however, can reduce the total cost of alarm ownership. Instead of relying on installers to rewire the house, new "security systems in a box" use a combination of battery, wireless and cellular technology to make installation simple and quick for most homeowners. Some systems can even bypass monitoring firms directly and contact the owner instead of a third party when the alarm is set off. One such system is sold by InGrid Home Security. The basic package, available for $199 at ingridhome.com, includes an alarm console, a phone that doubles as an alarm control and three window or door sensors. The entire kit fits in a box about as big as a shoebox.

The sensors stick to doors and windows with sticky tape and are completely wireless. They are powered by tiny watch batteries and connect automatically with a few taps on the cordless handset. You can monitor the system online, even taking video and images using an optional video camera. The system took about an hour to install in a two-story home. No tools were necessary but there were a few snags while activating sensors and base stations.

The monitoring service costs $20 a month and discounts are available with a yearly contract. A video camera costs $130 and temperature and water sensors — for basements or unattended summer homes — cost $60 each. The service offers 24-hour monitoring as well as access to video feeds over the Internet. Smoke and siren detectors cost $100 and $50 respectively. LaserShield, another company offering a monitoring and hardware package, focuses more on motion detectors in the home. The starter kit, which costs $200 and is available at lasershield.net, includes a motion sensor and keychain remote. It requires a standard telephone connection for monitoring and for sending alerts; monitoring costs an additional $20 a month. You can control the system through a Web site.

Within a few weeks , the company will release the LaserShield Pro, a professional grade security system that is designed for easy do-it-yourself installation. For under $300, the new pro kit includes a motion detector, control panel, and two door or window sensors. For an extra charge, LaserShield will also offer a flood detector, a glass-break detector and a wireless siren.

The starter kit is fairly easy to install. You simply place the motion sensor in one room and the base in another, near the Internet or telephone lines. The alarm announces when it has been tripped and begins by calling your own phone number and then notifying the police if there is no reply. It took about 10 minutes to set up the hardware and activate the system.

For an additional $230 you can buy Laser Shield's Cyclone, a stand-alone cellular transmitter that provides a connection to the company's monitoring station even if phone lines are cut. Adding the Cyclone increases the monthly monitoring fee to $30. Those without landline telephones or VoIP services like Vonage will have to purchase Laser Shield's Sparrow for an additional $130 (plus an extra $10 a month), which allows the alarm system to work over the Internet.



PNNL cyber security experts consider all elements of the computer system—including the human element—when they devise cyber security systems. Researchers are developing technology and processes to anticipate what potential hackers might do next and stop them.

Even big telecommunications companies are getting into the D.I.Y. security game. Steve Loop, director for business development at AT&T, says that home security has benefited from wireless connections. That is what prompted AT&T Wireless to offer AT&T Remote Monitoring.

Originally aimed at small-business owners, the AT&T products do not contact the police in an emergency but instead send cellular text and e-mail messages to the homeowner when something is amiss. The basic kit starts at $299 and $25 a month. It includes one door sensor, a system controller and a remote camera. It also includes a system for transmitting video over home power lines.

The kit also supports add-ons like temperature, motion and water sensors.

Mr. Loop said he would not call AT&T remote monitoring a fully fledged security system. The system is truly D.I.Y. because the owner has to follow through when the alarm is set off.

"The system lets you keep in touch with locations that matter to you when you're not there," he said.

Mr. Loop said that some AT&T employees used the system to keep track of dogs and cats and even keep an eye on a babysitter while at work. The additional sensors act as triggers, allowing homeowners to keep track of sump pumps, heaters or air conditioners remotely.

The installation and activation took about 30 minutes.

Not everyone, however, wants to go the D.I.Y. route. Dave Simon, spokesman for Brink's Home Security, pointed out that many installations benefited from having a local expert installer. Experts can help decide which windows and doors to arm and which add-ons to include. Mr. Simon estimates that a full-service installation would cost about $200 for a basic system and a few hundred more for a more complex system. Brink's also offers a monitoring service for $30 a month.

"Brink's installs the systems and monitors as well. Not every company does that," he said. Most companies, he said, hire outside contractors to plan and install security systems using their products.