When looking for a surveillance camera system, it is easy khổng lồ get overwhelmed by the huge number of products available & the confusing technical jargon that comes with them. Just walk into any big box retailer and there are numerous brands all seemingly selling the exact same camera. Every brand claims to offer high resolution và night vision, và sorting through the claims can be confusing.
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What many people vì chưng not realize is that there is another class of security camera that is directly available to the public, though not found in the big box và warehouse stores. These surveillance cameras are classified as "commercial-grade" security cameras & are the type of camera used by these big box chains lớn secure their inventory. Look at the ceiling of consumer electronics stores và warehouse chains and you will notice in each aisle a white dome camera that is larger than the average consumer camera. Let that sink in for a moment…these companies vì not even use the type of cameras they are selling khổng lồ the public, & there is a good reason why.
Commercial-Grade vs. Consumer-Grade Security Cameras
As you just learned, there are two broad categories of security cameras. What you generally find at stores are consumer-grade cameras, which usually come 8 or 16 cameras bundled with a clip recorder và sell for less than a thousand dollars (US $) for the set. The second category of camera, commercial-grade cameras, generally starts at about $400 (US) per camera— a significantly higher price. The clip recorder must be purchased separately, & commercial grade recorders start at about $500 (US $) and can range up to $5000 depending on the amount of storage, camera connectivity, and image processing features.
On the surface, these two camera categories may appear similar, though if you were able lớn see inside, the differences become obvious và distinct. Commercial-grade cameras are designed và built for high-performance applications where failure is not an option; consumer-grade cameras are not. Typically, consumer-grade cameras are built to work well when there is plenty of available light, và once the lighting becomes low or absent (think sunset or nighttime), their pedigree begins lớn show. Commercial cameras outperform their cheaper cousins because they have larger internal video sensors and higher-quality components that can adapt và capture excellent low light video.
Think of it this way, if a decent still-camera costs a minimum of two hundred và fifty dollars (US $), how can a more sophisticated clip camera be sold for the low price of forty dollars? It just does not add up. To lớn offer such low prices, manufacturers must cut corners, & the end result is compromised performance. What good is a surveillance camera that only works ideally in perfect conditions lượt thích bright sunlight? Consumer-grade cameras can work well in certain situations such as nanny cams or checking in on a pet, though when looking lớn gather evidence of a crime they often come up short.
The rest of this article will focus on commercial-grade surveillance cameras, as you will learn they are the best choice to lớn monitor your valuables and catch the bad guys.
Mixed Lighting Conditions
Commercial-grade surveillance cameras prove their superiority when dealing with difficult lighting conditions. For example, it is common for a business to lớn have a camera pointed at the front door of their store. When someone opens the door, a large amount of sunlight will shine through the doorway, flooding the camera’s sensor. A consumer-grade camera will try lớn adapt to the extra light being let in the room và will xuất hiện its shutter khổng lồ compensate. In turn, this causes the doorway khổng lồ look properly exposed, though the store itself now appears dark because the room in which the camera is mounted is darker than the area of the doorway. In this case, the business owner ends up having a well-exposed doorway, though an indoor image that is too dark lớn be usable. Meanwhile, the face of the person walking into the store is never captured because they are standing in the under-exposed store. Though the example given here is for a store, homes often have challenging mixed lighting conditions, too.
Commercial-grade cameras solve this problem with a special light-handling feature. These cameras use both a software và hardware solution called HDR, which stand for “High Dynamic Range”. In our example here, HDR takes an exposure of the room & an exposure of the doorway & then combines the two images together to lớn create a properly-exposed composite image of the two areas. As far as anyone is concerned, the image looks completely normal since the doorway & room appear to lớn be at the same brightness level. As a result, faces are properly exposed at the door & in the store, accomplishing the goal of capturing đoạn phim of everyone entering the store. HDR is now a standard feature in commercial cameras. Unfortunately, once customers realize that the inexpensive consumer camera they bought is lacking HDR, it’s usually too late since the cameras và recorders are installed.
Now let’s examine why consumer-grade cameras are often poor night vision performers. When a camera tries lớn see in the dark, it needs a light source khổng lồ illuminate the area below it. Unfortunately, the night vision illuminators that come with consumer cameras are designed for short range only and are of a fixed brightness. This means they typically over-expose what is nearby in a scene, causing people và objects khổng lồ appear “blown out” and without any detail. So much for trying to lớn identify the bad guys. Commercial cameras, however, often are equipped with more advanced night vision infrared (IR) illuminators that can adjust their brightness automatically lớn the scene. This feature is called “Smart IR”, và it matches the camera’s infrared light đầu ra to the scene. With Smart IR, the subjects appear properly exposed & in full detail. If a camera cannot capture và deliver a properly-exposed và sharp image during the day and at night, it has limited usefulness.
How Much Camera Resolution is Enough?
Another important topic to lớn discuss is camera resolution. It can be confusing khổng lồ understand how much is enough. In this article, the term “resolution” refers to lớn the number of dots (pixels) that trang điểm a video picture; the more dots, the more detailed the clip image. The same is true of high-resolution TV sets, and the two most popular TV resolutions today are 1080p và 4K. 4K resolution contains about four times as much picture information as 1080p. Surveillance cameras are also manufactured in these two resolutions, and it would be natural khổng lồ believe that the more dots in your video image the better, right? Yes và no. When it comes lớn surveillance cameras, there are some tricky consequences to lớn having such a high-resolution 4K image. In this case, more is not always better.
You would be hard-pressed to tell the difference between 1080p and 4K resolution when looking at a normal camera image. The one major benefit of 4K resolution is the ability lớn resolve detail after the fact, which means that users can zoom in on details such as faces while the recording of a security sự kiện plays. However, while 4K resolution offers some benefits, it also brings with it some drawbacks. 4K images are very large và take up a lot of recording storage space. So much, in fact, that they need about four times the hard drive space of 1080p to lớn record the same length of đoạn clip footage. Be prepared khổng lồ spend more money if extended clip storage is important.
If you are interested in a 4K camera system, you ideally will have a very high-speed mạng internet connection and a robust home network, ideally an enterprise-grade network. As discussed above, the 4K camera images are very large, và that is a lot of data to lớn push around the home’s network and optionally, khổng lồ an offsite cloud recording service (more on that below). Rely on your HTA Certified giải pháp công nghệ professional for advice here, as they will be able to determine if a 4K camera system will work in your situation. Some of the better camera system brands have controls lớn adjust some of the recording parameters in order for slower network connections khổng lồ still work reliably. Keep in mind that 1080p resolution generally has enough detail lớn deliver important đoạn clip information while preserving network bandwidth & hard drive storage.
Integration…Does the Camera System Play Well With Others?
We have reviewed many important reasons why one should consider commercial-grade cameras so far, however, we have just skimmed the surface of the subject. In today’s network-connected world, a surveillance system is rarely a stand-alone system. It is worth knowing if your proposed camera system will integrate with other products.
Integration refers lớn “smart” devices that can talk to one another via a network. With the advent of the connected home (aka “smart home”) và products that give you the ability to control lighting, audio/video, door locks, alarm systems và more, commercial camera systems can often communicate with other smart devices, such as voice control products. For example, a voice-controlled product lượt thích the Amazon Echo can display a camera view just by asking for it. Another example of the benefit of integration is when a security sensor is triggered due to lớn an intrusion. First, the alarm is set off, but then the lights throughout a house can be automatically turned on, and perimeter doors can lock tight, trapping the burglar. Systems that once had little to do with one another can now act in concert creating new features & benefits.
Remote video Storage…a Growing Trend
With an internet connection comes another game-changer that transforms how đoạn phim is accessed and stored. This relatively new trend is referred to lớn as cloud đoạn phim storage, and what makes it so amazing is that now all clip from your cameras can be uploaded khổng lồ remote storage. Why does this matter? In the past, if bad guys broke into a home and took the family jewels there was always a risk that they could steal the security đoạn phim recorder too, which would be a real tragedy. No jewels and no video for the police to catch them. Though with cloud video clip storage this doesn’t ever have to lớn happen again. When the bad guys break in & look for the recorder, this time there just might not be one lớn steal. Each camera can send its video directly to lớn the cloud via the Internet, và once that đoạn phim is uploaded to lớn the cloud it is safe forever—which can mean a much bigger chance of catching the thieves và recovering the jewels. Cloud đoạn clip storage has become a ubiquitous part of the security landscape with more security video users opting for cloud backup in addition khổng lồ the on-site recorder or forgoing the local recorder altogether. Networking is having a major effect on how video clip security customers are storing their đoạn phim and the trend towards the cloud will continue khổng lồ grow.
Hacking…and Tips lớn Prevent It
It is impossible to lớn deny the huge benefit customers gain by attaching their security cameras to lớn the Internet, though as is frequently mentioned by the media, there are hackers lurking everywhere. It has become a fact of internet life that no computer is 100% safe, và regrettably, security camera systems are at risk as well. The surveillance camera industry has been plagued over the last few years by various hacks and exploits being discovered by security researchers and hackers alike. Very few security manufacturers have been spared the embarrassment of finding out that their recorders and cameras have been hacked and controlled by some unauthorized person.
As a result, there is a renewed interest in making sure that security systems are protected from network threats. One of the best ways to lớn protect your surveillance camera system is by using what is called a VPN Router/Firewall which is a type of computer designed lớn keep out unwanted threats. These devices are becoming the defacto standard when protecting any kind of networked equipment. Other technologies that were originally designed to make networking easier lượt thích P2P, and Port Forwarding, have only increased the ways that hackers can penetrate your network. Network security has become a necessary part of setting up and installing a security camera system and is one area that no one can afford khổng lồ ignore. HTA Certified installation pros that install camera systems (noted in their company profiles) will be able to recommend và implement security best practices.
Deep Learning Search…Search Your video Footage Nearly Instantly
There is a new trend in surveillance clip search technology that is quickly changing the security industry, và it is called “Deep Learning”. What is Deep Learning & why is it so important? For starters, Deep Learning allows someone khổng lồ find what they are looking for without having to tìm kiếm through hours of useless video clip footage. Imagine a webpage that works a lot lượt thích a Google search, where you can describe the elements you are looking for in the recorded video clip footage. For example, if we need khổng lồ see all video from today that has a police oto in it, we simply type “police” into the search window và in seconds every key frame of đoạn clip with a police cruiser appears. It simply is magical compared to the way video once was searched by tediously scanning through hours of recording footage. If we are looking for any FedEx trucks that came by the house on Friday, we can instruct the deep learning tìm kiếm system to lớn look for this và get a result lượt thích shown in the picture near the đứng đầu of this page. With deep learning video search, you now have a powerful solution for catching criminals and collecting evidence.
Thermal Cameras – Military technology for Your Yard
What is a thermal camera, & where might you want one? Here is a brief explanation of how thermal cameras work: All objects emit infrared energy (heat) as a function of their temperature. The infrared energy emitted by an object is known as its heat signature. In general, the hotter an object is, the more radiation it emits. A thermal camera includes a heat sensor that is capable of detecting tiny differences in temperature. The device collects the infrared radiation from objects in the scene and creates an electronic image based on information about the temperature differences. Because objects are rarely precisely the same temperature as other objects around them, a thermal camera can detect them, & they will appear as distinct in a thermal image.
Thermal cameras are great for areas that have absolutely zero light and are also commonly used in areas of thick fog & or smoke. Though popular in commercial và government installations, they are now being used in high-end residential projects with large areas of ground khổng lồ cover and/or little lớn no landscape lighting. Thermal cameras will allow you lớn see living objects via their heat signature from great distances that a normal camera could not.
360° và 720° Cameras – See the Big Picture
360° và 720° surveillance cameras use a specialized fish eye or spherical camera lens khổng lồ offer a far wider viewing area compared khổng lồ a normal/standard camera. 360° cameras can see in all directions, though in one hemisphere only. 720° cameras can see in all directions at the same time…up/down & left/right.
These cameras offer a wide field of view in one camera, though they often suffer from poor resolution when zoomed in. Although they cover a far larger viewing area, the resulting image often looks “warped” compared khổng lồ the “flat” view a standard camera shows. The image then needs lớn be run through software in order de-warp or flatten the image lớn make it useable. Higher-end đoạn phim recorders/processors can vì chưng this automatically via software lớn allow you khổng lồ see the full-size image flattened rather than circular.
Where are 360° and 720° cameras best used? In very large areas/rooms where the viewer needs a great overview of the whole scene rather than just a portion. When used in tandem with standard cameras for more pinpoint detail, these cameras are a great solution lớn overall situational surveillance.
Without a doubt, the security camera landscape is advancing rapidly. At the forefront of important công nghệ meant khổng lồ protect what is most important to lớn you are intelligent search, perfected night vision, network integration, và possibly thermal imaging & 360° và 720° cameras. Cheap consumer-grade camera offerings vị not deliver these new and important features. Yes, they may have the ability to view đoạn phim over the Internet, but that is only valuable if the clip footage is properly exposed and can compensate for differing và changing lighting conditions. Cheap cameras represent false savings & an expensive lesson if it fails to vì chưng its job when you need it most. In this article, we have discussed some of the reasons large companies use commercial-grade security cameras and why the benefits are worth the higher cost for your trang chủ and loved ones. If usable video is the goal, make sure the cameras have Smart Infrared, High Dynamic Range, and at least 1080p resolution. With a little bit of research, and most importantly, listening lớn your HTA Certified professional’s advice, a lot of heartache can be avoided later.
How lớn Hide Security Cameras
There are many ways you can hide security cameras. They can be disguised as or within other common household items, blended or camouflaged into the environment, or completely hidden using miniaturized pinhole or peephole cameras. Read more about this topic in this article: The top 4 Ways khổng lồ Hide Security Cameras.
To help you choose the best surveillance camera system for your needs, seek out advice và installation from an HTA Certified company. HTA Certified technology integrators have demonstrated excellence in technical knowledge, customer service/aftercare, and reputation. Read more about the HTA Certification standard by clicking here. This trang web also includes a Budget Calculator that includes a surveillance camera budget range. You may access it here > Technology Budget Calculator. You may tìm kiếm for HTA Certified installation firms at this link > HTA Certified Integrators
About IC Realtime:IC Realtime designs & manufactures commercial-grade surveillance & security industry solutions. To learn more, visit www.icrealtime.com.