Ravica’s Sensor Controlled Relay – The Rosetta Stone?
Filed under: Data Center, airflow monitoring, environmental monitoring
A few weeks ago I talked about using the sensor controlled relay to turn on lights once an alarm had been triggered. In this blog I wanted to give another example of how versatile these units can be.
Solutions . . .
A great example is the solution that I found for a local amusement park. One of their outdoor venues was having an 
issue with their digital photography equipment overheating. It wasn’t economical to add air condition to the unit, so they needed to find a way to turn on multiple overhead fans automatically.
The management of this unit fell under the IT department, and the admin wanted to remotely monitor the data from his office (or any other portable device). The end solution was to monitor multiple environmental variables with the Ravica Sensor Probe and use the Sensor Controlled Relay to switch on the fan when the room temperature rises beyond the threshold level.
Since the sensor control unit has a user friendly web interface and an autosense feature, setting up the Sensor Controlled Relay is easy. The Sensor Controlled Relay can also be controlled via external computers, using the included SNMP command line utilities either interactively or programmatically.
From the unit itself, you can monitor the status of the Sensor Controlled Relay by four LEDs on the board. You can also monitor the unit remotely by using SNMP traps or the web interface, as well as e-mail and SMS alerts.
Implementation . . .
“The Sensor Controlled Relay provides 1 high-power SPDT 5V relay, with the maximum load up to 15A at 220 VAC. It includes Metal Oxide Varistors (MOVs) and Snubber circuits to protect the open contacts of the relays from high voltage spikes or noise transients. It monitors the power and load, and accepts a control signal, which is sent from the SensorProbe.”
We outsourced a local contractor to do the electrical work and the end result was better then we expected. Not only did we eliminate the equipment from overheating, but we are also able to trend the temp of the units over a given amount of time. This gave the admin a better picture of demand and heat generation.
Another thing to remember is the inlaid protection of this sensor. The Sensor Controlled Relay, it has a built in 16Amp circuit breaker and a 15Amp fuse (380 VAC, 125 VDC) giving it double protection for the external devices and possible damages by electrical fault. This assures protection for your sensor and your investment.
Conclusion . . .
As you can see, the Ravica Sensor Controlled Relay has many uses. It’s ability to control an array of analog devices makes it a versatile solution. It’s ability to monitor and protect itself make it a smart investment. That is why I recommend it every chance that I get.
- JimmyD
The SensorProbe can Tweet!
Filed under: environmental monitoring, humidity monitoring, temperature monitoring
I don’t want to ride on the coat tails of Jon’s post about being able to send temperature alerts via Skype, but I guess I have no choice. I quickly wanted to point out that you can also send Twitter alerts form your SensorProbe. I imagined this as a second wave alert. Kinda that last ditch effort before the ship goes down. Ok, maybe I am being a bit over dramatic but in reality, this can be a great way to do a broadcast alert.
The process is easy. Browse to TwitterMail, insert your twitter username and password to get your TwitterMail address instantly. Then go to your SensorProbe and create an email alert. Alert goes off, email is sent and Twitter is fed. Make sure that everyone that is supposed to recive these messages are followers of your Twitter account.
Humidity Monitoring – Unforseen danger in your server room
Filed under: Data Center, Intelligent Sensors, SensorProbes, environmental monitoring, humidity monitoring
I was working with a client who had to replace multiple mother boards in their server room. I was surprised that he had to replace so many, so I gently asked, “What happened?”
He said he knew I would ask him that question. Over the weekend, the air conditioning unit for their server failed. It didn’t stop, it just stopped pushing out cold air. The room didn’t get too hot (thank goodness), but it produced a lot of moisture.
Apparently, it produced too much moisture, which caused condensation on the server rack that was closest to the air conditioning unit. The end result was multiple mother boards failing.
We spent the next few minutes going over the cost of the replacement boards and drives. I then let him know that we had a humidity probe that would alert him when humidity reaches a certain level. I suggested that he add it to his order and not take the risk of loosing another segment of his server room. He thought that it was a good idea and bought two!
“Relative humidity should be maintained at a level between 30%-50%. Failure to adhere to these particular specifications could result in serious corrosion of the copper wires that are contained within the UTP and STP. Such corrosion would deter efficient functioning of the network.” – Excerpt from Cisco Networking Academy book material. So I guess the old saying, “An ounce of prevention is worth a pound of cure,” holds true. Take the time to monitor for humidity. It could help save your equipment.
- Jimmy D
Solar power and your network
Filed under: Data Center, Intelligent Sensors, SensorProbes, environmental monitoring
I just finished an article written by Robin Lloyd, titled “Solar Power to Rule in 20 years.” Alternative energy sources have always been my passion, so I read on; maybe it would shed some light on the subject (lol – had to say it). Robin quotes Ray Kurzweil saying, “There is 10,000 times more sunlight than we need to meet 100 percent of our energy needs.” Can you imagine being able to generate all the electricity required to run your server room? Imagine being the person who brings this technology to your company?
I spent my lunch time researching my proof of concept design. I Googled Solar Panels and found everything from cool DIY YouTube videos to full service companies. Finding a package wouldn’t be that difficult. Monitoring the package and integrating its data into our current network would be a little more involved.
Monitoring the output of a solar panel can be done with the Ravica Power Monitor. The power monitor can read both 120v and 22v. With this monitor you are able to determine up/down state and measure voltage on a constant basis. With this data you can be alerted on the sensor exceeding a pre-defined threshold with industry leading notification options like: SNMP traps, email, SMS, MMS and the recently released Skype support. You can also use the data to trend the panels output.
I was done, a quick proof of concept that could work. Imagine being able to show your company how much the IT department is saving! It might be a dream now, but someday it will be reality. Bigger ideas have been planned on the back of a cocktail napkin. Mine was in a Google note book, so I am a step a head!
Did you notice that the price of oil is up again?
- Jimmy D
Using SensorProbes to prove the office temperature is too low.
Filed under: General, Intelligent Sensors, SensorProbes, environmental monitoring
I was angry. Well, maybe just a little mad, but no matter what, I was still upset. The office was unbelievably cold, and it had been going on for way too long. By cold, I mean goose bumps and jackets every afternoon. When I would go for a lunch time walk (as I often do), my muscles would cramp, due to the drastic temperature change. As I said, it was cold.
Needless to say, something had to be done. I complained to the powers that be, but their first response was less then rewarding. Answers like “It’s in your head,” or “You are right under the vent,” were explored; but I knew that they were wrong.
Luckily, things got worse. The temperature was getting colder and for longer periods of time. More people were saying things like “Gee it’s cold,” or “Hey, are you cold?” and “Turn up the heat or I am breaking up the conference room table and building the biggest bonfire this side of Boston.” In one remote section of the office there were a group of dissidents that wanted to change the company dress code so that it included a L.L Bean Arctic Parka.
At this point I decided to throw on my Jimmy D detective hat and get some proof. Since I am Uber Geek, I decided to use the tools of my trade, I would need technology!
I integrated a high scale, super conductive data collection station into my work environment. To be honest with you, it surpasses the one that I once viewed at MIT that is currently used to monitor global warming. In reality, I secretly moved my BitSight2 temperature probe from the server room over to my desk. I then setup Denika to trend its SNMP data. With Denika I was able to set a minimum temperature threshold, which would alert me when the temp fell.
I diligently collected data for two weeks. I even adjusted the threshold, as I saw the temp get lower and lower. The data was conclusive. I had my answer. I could now confidently register my complaint to the powers that be and demand change! At the same time, I now had the ability to defuse the previously described uprising. Viva Data! Viva Jimmy D! Maybe I need to get out of my cube more often?
Again, in reality, I took this data to my boss and quickly showed him that in the afternoons were seeing an average of 54 degrees, mornings were a bit higher. He took this to building management and they are currently in the process of finding out what the issue is.
The good news is that my cube is getting warmer, the bad news is the I got my BitSight taken away!
Why is that iPhone on my network?
Using Ravica environmental monitoring products can help protect your network from the physical world but what about the new mobile world? Can your protect your network from the Smartphone cloud? Smartphones are all around us. The advent of the iPhone had brought their use to the forefront of the IT department. As a result there use has burdened the corporate network and become a big security risk. You can’t ignore the growth, recent surveys show that smartphone use is rising and should grow by 25% in the next three years.
So what do you do?
The influx of smartphones also creates a host of challenges for any IT pro seeking to manage that rapidly growing portion of the enterprise. Armed with the right information and tools, you can make sure that the true potential of a highly mobile workforce is realized.
Dawn the correct armor.
A smartphone can operate inside and outside of your firewall, similar to a laptop. Since you are using smaller operating system, and in some cases unique, your job becomes a little more difficult. So that means making sure your smartphone connections are secure is priority number one. I found a great article that explains how to secure your smartphones and the data that they access. Here is a similar white paper from ZDNET.
Manage your army:
So how do we manage smartphones when they are on and off of your network? Matt Bancroft from Smartphone Security Magazine tells us that, “like the laptops of remote workers, smartphones need to be catered to as a part of the network and subject to corporate management and security measures. It is essential that companies have a corporate IT management policy in place that takes these smart mobile devices into account.”
Three things IT departments must consider when smartphones are running enterprise applications are:
- Operational Continuity: Once employees are trained and start to rely on the applications on their phones, you need to make sure that they are running all the time. This means controlling the phone’s firmware and the other applications that run on it to ensure that it has 100% up time.
- Reducing Support Costs: You need to be able to take control of phones remotely or push files when needed. This can be extremely helpful.
- Security and Compliance: This includes backups to ensure data can’t be lost, and encryption or remote device wiping to protect data when a device is stolen or misplaced. It may also include communications controls, such as archiving SMS messages or preventing them altogether.
Management tools include Sybase with iAnywhere (for Windows Mobile, BlackBerry, Palm OS and Symbian), Logmein (for Windows Mobile, Symbian and BlackBerry shortly), and Microsoft with its Mobile Device Manager 2008 module, which is part of its System Center family of management products for devices running Windows Mobile 6.1.
Here are some items that you want to look for in your management application.
- Active Directory/Group Policy domain join
- Mobile VPN with dual-factor authenticated access
- Application allow and deny
- SMS, Bluetooth and camera disablement with Active Directory Group Policy-based targeting
- Over the air device provisioning and software deployment
- Device inventory and reporting
- Help desk console and role-based administration
- Device wipe
It’s clear that smartphones are becoming a more integral part of most enterprises. Today’s technology workers are more tech-savvy than ever The influx of smartphones also creates a host of challenges for any IT pro seeking to manage that rapidly growing portion of the enterprise. But armed with the right information and tools, you can make sure that the true potential of a highly mobile workforce is realized.
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Jim Dougherty aka “Jimmy D”
Lead PreSales Support Engineer and
Netflow Evangelist for Plixer International!
Follow me on Twitter
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The SecurityProbe-x60
The SecurityProbe-x60 security device by Ravica is one of their top of the line models. It features 60 inputs, a Linux operating system with 128 MB of memory and 64 MB of SDRAM, and more. To set up your new SecurityProbe-x60, all you have to do is log in to its easy to use web interface. Form there, you can configure your device, download data, and view graphical reports. You can, of course, encrypt all of this data so that no one else can get to it but you, and since the interface is written in PHP, you can customize it, too. You don’t even have to worry about a power outage messing up your stored data, either, because the SecurityProbe-x60 features a battery back up to keep its internal clock running accurately.
Because the SecurityProbe-x60 features a 60 dry contact system, it can handle remove monitoring of many different external devices such as security cameras, motion sensors, and more. It can also monitor HVAC systems, UPS systems, generators, and other industrial equipment. In addition to the 60 dry contacts, there are an additional 20 2-wire dry contact ports, upping the total to 68 ports. These 2-wire ports are very easy to use, and you can quickly make your own dry contact cables without any issues.
The embedded Linux system uses a 312 MHz processor, has two serial ports, and features a 10/100 Mbps Ethernet connection. This enables it to run its own web server with encryption, Perl, Telnet, PHP, and Email program.
These are just a few of the features of the SecurityProbe-x60. It’s one of the top products from Ravica, so if you’re interested in knowing more about it, visit the product’s website.