By Jackie Edwards
The video surveillance industry continues to develop and prosper as awareness for safety grows among citizens concerned for the security of their homes. According to a poll conducted in 2018 by SDM, in which both integrators and dealers were asked about their state of confidence with the current surveillance market, 75% said they believed the market’s state to be excellent. As video surveillance continues to grow in prominence and ubiquity, with more homeowners looking to secure their households, the more technical aspects of home surveillance should be made transparent and readily available. Placement technique and varying types of surveillance systems are being continually innovated and specialized towards fostering intuitive home security setups. Here’s an overview of the current standards for installing CCTV systems and their variant iterations.
Conventional surveillance setup
conventional surveillance setup is comprised of either mountable or
stand-alone cameras, positioned independently in various areas which
work in conjunction with each other to capture consistent video. The
collective of cameras send footage to a monitor system; the signal being
broadcast from the cameras to the monitors is closed circuit. Viewing
of the camera’s feed is strictly observable from connected equipment.
The majority of modern surveillance cameras capture high resolution
video and are best situated in corner areas of an indoor space, since
they are typically capable of wide range viewing. The system itself is
conventionally connected by coaxial cables. Inconspicuous and out of
reach, wired systems are still commonly used by homeowners to deter potential burglary and more generally maintain consistent observance of their property.
a means of eliminating the need for cumbersome wire installation, newer
surveillance systems are entirely wireless. Composed of a camera,
transmitter, receiver, visual monitor, and a supplemental data storage
system, wireless setups allow for broader range in regards to placement
and proximity from the central monitoring unit. Footage is captured and
streamed from a radio transmitter to an antenna; the receivers can
either be based within the camera and monitor or separate from one
another. Being wireless, these units are able to be disguised as everyday items, or can be totally mobilized and mounted onto a tripod or other peripheral.
Flexibility of location for surveillance
of the home that experience the most break-ins are the front door,
backyard, and the ground floor parallel to the house. What should be
considered when plotting effective surveillance locations is the
camera’s proximity to a power supply and proximity to the home’s router –
if wireless. Integration of IoT principles makes it possible to use a
smart device for wireless monitoring of the surveillance feed. Some
cameras are designed for communication with other smart and IoT outfitted devices.
Homeowners are granted the flexibility to place camera’s base on their
own concerns for which area of the home is considered a security risk.
for homeowner’s and how they arm their home is the priority for
surveillance companies. As the industry continues to develop along with
smart technology’s integration to domestic life, surveillance systems
will persist in popularity and normalcy.
By Megan Ray Nichols
When you want to join two things together, you have a lot of options depending on the two materials. If you attach paper to cardboard, you can grab a bottle of glue. If you stick plastics together, epoxy is your go-to adhesive. If you try to attach two different pieces of metal, glue won’t cut it. That’s where welding comes in. Let’s take a look at the science of welding, as well as the different types of welding and how they work.
The Science of Welding
science of welding depends on the type of metals you want to join, as well as
the kind of filler material you use to attach the pieces. The most common type of welding is known as arc welding,
which gets its name from using an electrical arc to melt both the metals and
the filler to create a solid connection or joint between the two.
by attaching a grounding wire to the welding material. Then an electrode gets
attached to the piece you weld and an electrical arc is generated between the
two points, creating a high-temperature area that melts the metal and the
filler, creating a uniform joint. Welding is tricky because you need to
continuously feed the filler into the welding joint at an even rate to create a
that you understand the basics of welding, let’s take a closer look at the
different types of welding, including the common less common options. There are
30 different types of welding, ranging from simple to complex.
MIG – Gas Metal Arc Welding
welding is a type of arc welding that uses a shielding gas to reduce the
combustibility of the materials. This type of welding reduces waste because it
uses a high-efficiency electrode that creates cleaner welds. MIG welds are
usually found in the automotive, industrial, robotics and maritime industry.
TIG – Gas Tungsten Arc Welding
welding, also known as heliarc welding, uses a tungsten electrode that can be
used with or without a filler rod to melt two metal pieces together. Like MIG
welding, this style also uses an external gas supply — most commonly a mixture
of helium and argon. You’ll usually find TIG welding in the aerospace industry,
water pipe joints and motorcycle manufacturing.
Continue reading The Science Behind Welding
by Megan Ray Nichols
3D printing has taken the world by storm in the last decade, but the technology isn’t as new as you might think. Believe it or not, the idea behind that desktop-sized 3D printer in your shop dates back to the 1980s. Let’s take a closer look at the history of 3D printing and where it might go in the future.
The 1980s — The Birth of 3D Printing
first attempt at creating a 3D printer occurred in 1980. Dr. Hideo Kodama filed
a patent in May of that year. This new 3D printer relied on photopolymer
materials — liquids that could be printed, then exposed to light to harden into
plastic. While this plan does sound like a viable one, Kodama never
commercialized the design, and the 3D printing industry seemed dead on arrival.
1986, Chuck Hull invented the SLA-1 — the world’s first 3D printer that could
build objects one layer at a time. In this case, the SLA-1 used lasers to cause
selected chains of molecules to link together, forming plastics or polymers.
The next year, Carl Deckard of the University of Texas came up with a different
type of 3D printing — Selective Laser Sintering, or SLS. Deckard’s machine
built an object out of layers of powder, then used lasers to melt the powder,
hardening it into the finished plastic.
1989, S. Scott and Lisa Crump, a married pair of inventors, came up with the 3D
printing technology that we know today — fused deposition modeling. The machine
would melt a polymer filament and deposit it onto a substrate layer by layer
until it finished the design.
printing had officially been born, but these early models lacked something — an
easy and user-friendly way to design things for printing.
The 1990s — Computer-Aided Design
something for a 3D printer might seem easy now, but imagine doing it without a
CAD program at your fingertips. That’s what the early 3D designers had to do —
create plans to build their objects without the assistance of a computer-aided
design program. Commercial CAD programs became more readily available
throughout the 1990s, though purchasing a 3D printer was still often too
expensive for the home inventor.
Continue reading The History of 3D Printing