Showing posts with label Security Camera. Show all posts
Showing posts with label Security Camera. Show all posts

Wednesday, May 1, 2024

Varifocal Lens Security Camera

Varifocal Lens Security Camera: What it is and How to Choose One 

A varifocal lens is a motorized camera lens with the ability to adjust its focal length and its focus–to zoom in and out. This is a fixed lens camera, which has no ability to zoom. This has obvious applications in CCTV security cameras, since it allows the camera to achieve high-resolution, zoomed-in, auto focused images of faces, license plates, and other relevant data caught on security footage.

Varifocal Lens vs. Fixed Lens

Varifocal lenses work so well in surveillance CCTV cameras because they can survey both a fairly large and a fairly small field of view–and thanks to their ability to autofocus, the distortion and blur that can occur in CCTV footage is minimized or eliminated.

A fixed lens is more limited since it’s essentially frozen in one lens position covering one field of view. Some fixed-lens cameras capture video with a high enough resolution that magnifying the footage after the fact still provides pretty good visual definition, but not all of them. Still, fixed-lens cameras are appropriate in certain CCTV applications where the field of view doesn’t need to be especially large or especially small–for example, mounted over a door or in an elevator.

Varifocal Security Camera Advantages

Varifocal lens cameras are appropriate for a wider range of locations than a fixed-lens.

They effectively monitor open outdoor areas like parking lots, parking garages, and courtyards, plus open indoor areas like warehouses and lobbies, but are also useful in hallways and public areas.

They are especially good in situations where shrinkage and theft are problems, since they can provide close-up HD video of the hands, pockets, bags, and faces of suspects.

A varifocal lens can be configured to automatically zoom in on things in response to movement, or it can be remotely done by a security system operator or monitor. This makes it an especially useful feature for cloud-based CCTV systems that prioritize remote monitoring.

There are also advanced varifocal lens cameras that can not only zoom in and out, but also swivel horizontally and vertically. This is ideal for a remote monitoring situation where multiple angles need to be covered, but there is only enough power, room, or budget for one camera.

How to Choose a Varifocal Lens Camera

Which camera you choose will be based on the field of view that you need to cover, and how detailed you want your zoomed-in images to be. Varifocal lens cameras are more expensive than fixed lens, and there is price variation within the different types of varifocal lens.

Varifocal lens cameras come in different aperture ranges:

  • 2.8-12mm lens 
  • 3.5-8mm lens 
  • 6-60mm lens
  • 5-100mm lens

“Aperture” is a word that describes the size of the opening in the lens that light comes through. Higher numbers represent smaller openings, and lower numbers represent larger openings. It’s important to choose a varifocal lens with an aperture range that is suited for the setting you need it for, with the right balance between depth of field and detail.

With varifocal lenses, a higher number and smaller aperture is generally preferred for large-scale and outdoor settings, since this allows the greatest depth of field–meaning that very little in the shot is blurry and out of focus. This is the type of varifocal lens that has the most utility in parking lots, above entrances and exits, and in large indoor spaces such as warehouses or large office spaces where a wide scope is necessary.

However, lower numbers and larger apertures are capable of capturing more detail, even though they have a more limited depth of field and greater blurriness outside the area of focus. This is very useful in indoor settings such as offices, lobbies, and retail stores where it is important to catch close-up details of faces, registers, and computer screens, but not as important to have a wide field of view.

Varifocal Optical Zoom vs. Digital Zoom

Even fixed lens cameras these days are usually equipped with a digital zoom. Is it still worth investing in a varifocal lens?

Yes it is! Digital zoom works by enlarging individual pixels, which basically creates blur. You’ve experienced this if you’ve ever tried to use your phone or computer to zoom in on a low-resolution picture. This is especially problematic in situations where you might be trying to read a license plate or get a good look at a person’s face.

Varifocal optical zoom, on the other hand, with its physically extending and retracting lens, actually records more pixels as it zooms in. This maintains the detail and definition of the image even when at maximum zoom.

When to Use a Varifocal Lens Camera

These cameras are a great security solution in a number of settings but especially these:

·        When there is no good place to mount a camera close to the area you need to survey. A varifocal lens can make up the difference in proximity by using a calibrated aperture and field of vision. This could be a long driveway, a large parking lot, or a distant entrance.

·        When you need to clearly make out fine details. This could include cashier stations, ATMs, main doors, and parking lot ingress and egress.

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Wednesday, August 16, 2023

Difference Between CCTV and Surveillance Cameras?

Difference Between CCTV and Surveillance Cameras?

When it comes to matters of security, there is a great deal of misunderstanding regarding the distinction between closed-circuit television and surveillance cameras. In spite of the fact that many people use these phrases synonymously, there is a significant difference between the two.

In this article, we will go over the key distinctions between closed-circuit television (CCTV) systems and surveillance cameras, and then we will assist you in selecting the system that is most suited to meet your requirements and how to Select The Right CCTV System.

What Is CCTV?

A CCTV system consists of a number of cameras to record activity, a digital video recorder (DVR) to store footage, and a monitor to view the recordings. You can also add security features like motion detectors and alarms.

Most people install CCTV systems for security purposes. They deter burglars and can help identify criminals after the fact. But they have other uses too. For example, you can use them to keep an eye on employees or children.

CCTV systems come in all shapes and sizes. They can be as simple as a single camera connected to a DVR, or they can be more complex with multiple cameras, different types of storage, and remote viewing capabilities. The type of system you need depends on your specific needs.

Installing a CCTV system can be a great way to improve security at your home or business. But it’s important to make sure you understand all the ins and outs before making any decisions.

What Is A Security Camera?

The word “security camera” is often used, although many people have no idea what they are. Monitoring and recording activity in a certain area is the primary function of security cameras.

They’re commonly found in public locations like shops, banks, and other establishments of a commercial nature. The usage of security cameras to discourage criminals and safeguard families is becoming more common.

There are a wide variety of security cameras to choose from. Small enough to fit in your hand, yet with a wide range of size options.

The region you want to keep an eye on will dictate the kind of camera you require. In order to watch your front entrance, you’ll need a different kind of camera than you’ll need to monitor your backyard, for instance.

Wireless and wired security cameras are available. A cable connects a wired camera to a recorder, such as a DVR. Wi-Fi is a common method of transmitting footage from wireless cameras.

Wireless cameras are preferred by many people since they are easy to set up and can be put anywhere in your house or company.

Analog and digital security cameras are two of the most common varieties. Analog cameras record footage using an analogue signal. Unlike digital cameras, this sort of camera is older and less prevalent.

What is The Main Differences Between CCTV and Security Camera

CCTV cameras, or closed-circuit television cameras, are a type of security camera that is typically used in public places in order to deter crime.

Security cameras, on the other hand, can be used in both public and private settings and are often used in homes in order to provide extra security. Here are five main differences between CCTV cameras and security cameras:

-CCTV cameras typically have a wider field of view than security cameras.

-CCTV cameras are usually mounted on ceilings or high up on walls, while security cameras can be placed anywhere that provides an adequate view.

-CCTV footage is usually monitored by security personnel in a separate location, while many home security systems allow users to monitor their own footage remotely.

-CCTV cameras typically record footage continuously, while security cameras can be set to record only when motion is detected.

-CCTV cameras are usually larger and more noticeable than security cameras.

Both CCTV cameras and security cameras serve an important purpose in terms of security. It’s important to choose the right type of camera for your needs in order to ensure that you’re getting the most out of your investment.

Comparison Table Between CCTV and Security Camera

CCTV

Security Camera

CCTV stands for ‘closed-circuit television’ 

Security cameras are also known as IP cameras; Internet Protocol Cameras.

As wired network cords, CCTV cameras utilize

Power over Ethernet (POE) is used by security cameras to reduce the requirement for electrical cables.

CCTV systems have a lesser video quality and image quality than security cameras.

Security cameras provide greater video quality and pixel density than CCTV cameras.

A television is used to transmit feeds from CCTV cameras.

Wi-Fi, LAN, or cellular networks are used to link security cameras.

CCTV is not wirelessly accessible and can be disarmed easily.

Security or IP cams are much more efficient and can be controlled wirelessly regardless of distance.

How To Select The Right CCTV System

When it comes to choosing a CCTV system, there are many things to consider in order to find the right one for your needs. Here are a few tips on how to select the right CCTV system:

-First, you need to determine what type of coverage you need. Are you looking for indoor or outdoor coverage?

-Second, you need to decide on the features that are important to you. Do you need night vision or motion detection?

-Third, you should consider the size and placement of the cameras. You will need to make sure that they are placed in strategic locations in order to get the best coverage possible.

-Fourth, you will need to choose a system that is compatible with your existing security system. If you don’t have a security system, you will need to choose one that is easy to install and use.

-Finally, you will need to decide on a budget. There are many different CCTV systems on the market, so you will need to find one that fits your needs and budget.

When it comes to choosing a CCTV system, there are many things to consider. With these tips in mind, you should be able to find the perfect system for your needs!

How To Select The Right Security Camera

It’s important to do your research when selecting a security camera. You want to make sure you’re getting a high-quality product that will be effective in protecting your home or business. Here are a few things to keep in mind when making your selection:

– The type of camera you need will depend on the area you’re trying to monitor. Indoor cameras are typically small and unobtrusive, while outdoor cameras need to be weatherproof and durable.

– Resolution is an important factor to consider. Higher resolutions mean better image quality, but they also require more storage space and processing power.

– Night vision is another key feature to look for. Many cameras now come with infrared LEDs that allow them to see in low-light conditions.

– Some cameras come with additional features like motion detection and two-way audio. These can be useful in certain situations, but they’re not essential for everyone.

Take your time to compare different security cameras and find the one that’s right for you. With so many options on the market, there’s sure to be a perfect match for your needs.

Conclusion

Make sure you’re getting exactly what you want with SSA INTEGRATE’s services.
We ensure that the solutions we are implementing will meet your demands now and in the future by going through our clients’ requirements.

No matter how many cameras you need, our team can manage all the design, estimating, specifications, equipment use and new equipment installation along with the necessary training and maintenance. We are not recommended to install HikVision, Dahua & Huawei.

It is our goal to give the best possible customer service prior to and following the installation. Regardless of the situation, customers can always rely on our knowledge and team.

Thursday, October 23, 2014

Android Lollipop vs. Android KitKat

Android Lollipop vs. Android KitKat
Android L is a HUGE update that sees Google taking its already mature platform several steps further. The Big G has tightened up nearly every element of its mobile platform, refining the look and feel of Android across the board, as well as touching up back-end tools and protocols to make the platform even more efficient.


Android 5.0 Lollipop has now launched officially and will be initially available on a brand new Nexus 6 phablet and Nexus 9 tablet. Motorola will be next to follow up with the updates and then soon we expect news from Samsung, HTC, Sony and all the rest. HTC revealed they are planning to bring the new update on their flagship smartphones – One M7 and One M8 – within 90 days after the Google makes the final code available. A new report reveals when the Taiwanese phone maker plans to bring the Android 5.0 Lollipop update for HTC One Mini 2 and Desire 816.

Android 5.0 Lollipop vs. Android KitKat: Material

Android Lollipop is the biggest change to Android in some time, finally bumping Google's OS up a full integer to version 5.0.
It's packed with changes, but the most obvious improvements are visual.

Google's been working on getting its new "Material Design" aesthetic out in the world for months, and Lollipop is its culmination. One of Android's biggest failings up to date - including with KitKat - has been that its design language never felt unified, and with Material Design Google hopes to fix that.
The aesthetic is meant to look both flat and 3D, as if you're starting at animated paper that exists on a z-axis as well as the x and y.
Material Design reflects this with clean, bold lines and colors that transform and alter with fun animations. At its best it lets you sense the depth behind the interface, even when it's at rest and appears flat.
This extends from app icons, fonts and interfaces to simple elements like the new navigation buttons and notification bar icons, and once you get past the changes you'll likely agree that most things look better now.
The changes to Android's interface with Lollipop aren't all visual, either - voice commands with "OK Google" are more prominent now as well, and can even be used when the screen is locked and off on some devices, and there are massive improvements to notifications.

Android 5.0 L vs. Android KitKat: Notifications 

Notifications have been Android's strong suit since day one, and Google is making them even better in Android Lollipop. The big change here is that they're being integrated into the lock screen – something Google previously experimented with when it developed lock screen widgets which allowed you to view emails and events without actually unlocking your phone.
As well as making notifications the first thing you see when you pick up your handset, Google is working on making them smarter when the phone is in active use. For example, in KitKat a call would totally interrupt whatever activity you were involved in, be it reading a book, browsing your emails or playing a game. In Android Lollipop, events such as these will pop up at the top of the screen, a la Samsung’s Galaxy S5, meaning you can choose to jump to that event or ignore it with a quick tap without leaving your current task.
Compared to Android 4.4, notifications are going to be smarter, more intuitive and less intrusive than before. KitKat's notifications system is decent enough, but it was basically recycling what had come before, so it’s good to see some out-of-the-box thinking from Google in this respect.

Android 5.0 L vs. Android KitKat: Security

Google has made massive strides with Android when it comes to overall security, coming up with innovations such as pattern unlocks and facial recognition. KitKat didn't bring much new to the table in this respect, but it worked well enough. Android Lollipop's big advance is going to be about making security more convenient, and it will do this using two methods: Android Wear and your current location.
In the first case, you can use your shiny new Android smartwatch as an authentication tool to automatically bypass your phone's passcode when it detects the watch nearby. In the second example, you can designate safe zones – your home, for example – where your phone will switch off your lock code. While both of these features could potentially create a security risk, if someone steals your phone and your smartwatch, they have access to all of your personal data, for instance, but they will overcome the irksome issue of having to continually unlock your device every few minutes.

Android 5.0 Lollipop vs. Android KitKat: Battery Life

Project Butter was Google's way of making Android feel smoother and slicker, and now the company has revealed Project Volta – a system which will provide developers with a better means of determining what elements of their apps are draining battery at an unnecessary rate. Because Volta will open up the battery stats to devs, they can tinker with their code to make apps more efficient and spot potential problem areas.
Android Lollipop will also take a leaf out of HTC and Samsung's books by coming with a battery saving mode by default. This will help users get as much mileage out of each charge as possible by throttling certain functions when juice is low. Such improvements will ensure that Android L is leaps and bounds ahead of KitKat, which only offers basic stats on what process is gobbling up the most power.

Complete list of devices which will be upgraded to Android L OS will be (Confirmed):
Nexus smartphones and tablets :
Nexus 4
Nexus 5
Nexus 7
Nexus 10
Motorola smartphones:
Moto E
Moto G
Moto X
Moto G 4G
Moto G 2nd Gen
Moto X 2nd Gen
Motorola Droid Ultra
Motorola Droid Maxx
Motorola Droid Mini

Samsung smartphones and tablets:-
Samsung Galaxy S5
Samsung Galaxy S5 Mini
Samsung Galaxy S4
Samsung Galaxy S4 GPE
Samsung Galaxy Alpha
Samsung Galaxy TabPro 8.4
Samsung Galaxy TabPro 10.1
Samsung Galaxy TabPro 12.2
Samsung Galaxy Tab S 8.4
Samsung Galaxy Tab S 10.5
Samsung Galaxy A5
Samsung Galaxy A3
Samsung Galaxy Note 4
Samsung Galaxy Note Edge
Samsung Galaxy Note 3
Samsung Galaxy S3
Samsung Galaxy Note 2

Sony Xperia smartphones:-
Sony Xperia Z1
Sony Xperia Z2
Sony Xperia Z Ultra
Sony Xperia Z Ultra GPE
Sony Xperia Z1 Compact
Sony Xperia Z2 tablet
Sony Xperia Z3
Xperia Z
Xperia ZL
Xperia ZR
Xperia Tablet Z
Xperia Z1S
Xperia Z3v
Xperia Z3 Compact
Xperia Z3 Tablet Compact

HTC smartphones:-
HTC One
HTC One m7
HTC One M8
HTC One GPE
HTC One M8 GPE
HTC Desire Eye
HTC One M8 Eye
HTC One Mini
HTC One Mini 2
HTC One E8
HTC One Max
HTC Butterfly S
HTC Butterfly 2
HTC Desire 816
HTC Desire 610

LG smartphones and tablets:-
LG G2
LG G2 Mini
LG G Flex
LG G3
LG G3 Beat
LG G3 Stylus
LG G Pad 8.3
LG G Pad 8.3 GPE
LG G Pro 2

Other smartphones and tablets:-
Micromax Canvas A1 Android One Smartphone
Karbonn Sparkle V
Spice Dream Uno
Asus Zenfone 4
Asus Zenfone 4 A450CG
Asus Zenfone 5
Asus Zenfone 5 LTE
Asus Zenfone 6
Asus PadFone S
Asus PadFone Infinity 2
Xiaomi Redmi 1S
Xolo One
OnePlus One
Nvidia Shield Tablet
Huawei Ascend Mate 2.