Bob Mesnik, Author at Kintronics

Advanced Door Access Control

Posted on May 15, 2018September 29, 2025 by Bob Mesnik

The Intelligent Access Control System

This is certainly not your father’s door control systems.

Wouldn’t it be nice to be able to push a button to initiate campus-wide lockdown? What about integrating IP door access with your IP surveillance system, or controlling what floor a person can go to in the elevator? Or, maybe you would like to use the access system as a visitor management system? Well, the latest network-attached access control systems provide these advanced features as well as many others that can make it easier to control security.

Intelligent Access Control System concept

IP Camera Motion Stabilization

Posted on May 8, 2018March 31, 2020 by Bob Mesnik

How IP Camera Image Stabilization Works

Have you ever tried to take a snapshot of something that’s far away? When you are using a long distance lens (higher focal point), you probably found it hard to keep the camera steady.

The higher the focal length of the lens, the more difficult it is to stabilize the image. This problem is especially significant with very long-range IP camera. When a surveillance camera is mounted on a swaying pole, or on a ship at sea, movement can affect the quality of the video. Image stabilization is used in IP cameras to reduce the effects of this motion.

This article describes the various mechanisms used to stabilize an IP surveillance camera.

Technical Jokes and Cartoons-40

Posted on April 13, 2018March 20, 2021 by Bob Mesnik

A physicist, an engineer, and a mathematician are all locked in separate burning buildings.

The physicist runs to a chalkboard, calculates exactly how much water he will need to put out the fire, runs and finds that amount, puts out the fire, and survives.

The engineer pulls out a calculator, calculates exactly how much water he will need to put out the fire, runs and finds 10 times that amount, puts out the fire, and survives.

The mathematician runs to a chalkboard, calculates exactly how much water he will need to put out the fire, declares, “There IS a solution!”, and then burns to death.

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Teacher: “If I gave you 2 cats and another 2 cats and another 2, how many would you have?”

How to Connect Audio to Networks and IP Cameras

Posted on April 5, 2018March 31, 2020 by Bob Mesnik

Did you ever want to yell at someone you see on your video surveillance display? Maybe you want to tell them to get away from your parking lot or to yell at an intruder that the police are coming. Perhaps you would like to talk to someone at your door? Then you could let the delivery man enter the back door at your office.

IP audio interface systems provide connections to speakers for paging or intercom devices. This article describes how audio can be added to your network or IP camera system.

Technical Jokes and Cartoons-39

Posted on March 20, 2018March 20, 2021 by Bob Mesnik

There was a power outage at a department store yesterday. Twenty people were trapped on the escalators.
Steven Wright

I went to the museum where they had all the heads and arms from the statues that are in all the other museums.
Steven Wright

I hate it when my foot falls asleep during the day because that means it’s going to be up all night.
Steven Wright

The bird, the bee, the running child are all the same to the sliding glass door.
Demetri Martin

The worst time to have a heart attack is during a game of charades.
Demetri Martin

Security Provided by Access Control Systems

Posted on March 19, 2018March 31, 2020 by Bob Mesnik

What You Can Do to Improve Security

With all the gun-related tragedies at schools and other facilities, what can we do to increase our security? Securing your facility, school, sporting events, or concerts have become more complicated.

IP camera systems used to be enough to monitor the facility, but today we want to do a lot more. We want to prevent unauthorized access to our buildings, prevent people from bringing in weapons, and we want to provide campus-wide paging systems that keep everyone informed of any emergency.

Access control systems include more than just a door reader. They can include intercoms, cameras and even walk-through metal detectors. Each of these security systems adds another level of safety. The different components play unique roles in your overall security. This article reviews the various parts and when to use them. It provides guidance about what technology to use and an overview of how they work.

How Walk-Through Metal Detectors Work

Posted on March 9, 2018March 31, 2020 by Bob Mesnik

Anyone who has traveled by airplane has probably gone through a walk-through metal detector. These security devices have also been used in schools, sporting events, government offices, and concerts. They are part of a total security system that includes cameras, door access control, and emergency paging systems.

Metal detectors are effective and safe. Just like IP cameras and door access control, they add to your safety and security. Here’s how they work.

The Science Behind Metal Detectors

The metal detector utilizes the laws described by a Scottish physicist named James Clerk Maxwell (1831–1879). He discovered that magnetism and electricity are related. An example of the relationship is a coil of copper wire wrapped around a metal nail. When current is applied to the coil, the metal nail becomes magnetized.

When an electric pulse is sent through a coil of wire, it creates a magnetic field. When the field hits a metal object, it reflects back and can be detected using another coil of wire. The size and timing of the detected pulse is used to define the size and position of the object.

Technical Jokes and Cartoons-38

Posted on February 19, 2018March 20, 2021 by Bob Mesnik

Infinity – where no-one can get, but where all lines meet.

Some Puns:

Have you ever tried to eat a clock? It’s very time consuming.

The other day I held the door open for a clown. I thought it was a nice jester.

The meaning of opaque is unclear.

I used to have a fear of hurdles, but I got over it.

Did you know they won’t be making yardsticks any longer?

What is a thesaurus’s favorite dessert? Synonym buns.

Technical Jokes and Cartoons-37

Posted on January 26, 2018March 20, 2021 by Bob Mesnik

If you’re not part of the solution, you’re part of the precipitate.

Right now, I’m having amnesia and deja vu at the same time.

I think I’ve forgotten this before.

You can’t have everything. Where would you put it?

Just because nobody complains doesn’t mean all parachutes are perfect.

A chemistry joke:

What kind of fish is made of only two sodium atoms?

A: 2 Na fish.

Security Technology Review for 2017

Posted on January 21, 2018March 31, 2020 by Bob Mesnik

In 2017 there were a number of technology advancements. Faster processors provided higher performance IP cameras that enhanced the security provided by IP camera systems.

Other technology introduced included, long-range PTZ cameras, new biometric door access control readers, and more advanced network attached paging and intercom systems.

Over last year, technology for IP security systems continued to add new features that made it easier to use and improve our safety. This article reviews some of the key technology introductions.