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Why Choose Wireless Security Systems?
Protecting your home from possible intruders is a high priority for most these days. When it comes to security systems, the debate between wired or wireless can be a tough decision. Both types offer advantages and disadvantages, with wired systems often seen as more reliable and wireless as more convenient. It really comes down to your own individual security needs and which type of system better suits these. Because wireless security camera systems are more advanced, they seem to be more appealing. Here we’ll review some of the important benefits of wireless security systems.
- Better Security
Wireless security systems offer better protection against intruders than wired security systems. Since wired systems use the telephone line or internet connection, if one or both of these are down, so is your security system. Wireless systems use more reliable cellular connections, and thus, the alarm will still be triggered via the dedicated cellular service or the batter powered backup system.
- Easy Installation
Most wireless systems are usually plug and play or DIY and can be set up in under 30 minutes, making installation of these systems and equipment easy and convenient. Wired systems require professional installation that takes longer to set up and test to ensure proper installation and functioning.
- Remote Surveillance
Wireless systems often provide other functions, such as controlling lights and locking and unlocking doors. These tasks can be managed remotely via an app installed on your smart phone or device.
- Mobile
Because they are easy to install, wireless security systems are also easy to uninstall and relocate. This is helpful when you are moving or even when you need to expand your system.
Although these seem like great advantages, they may not be right for you. As mentioned, it is important to evaluate your own security needs to better understand which type of system will work best for you. If you need help deciding, please feel free to contact us at 888-203-6294. You may request a free quote or schedule a site survey. Browse our comprehensive stock of affordable security solutions online at SecurityCamExpert.com and connect with us on Facebook, Google+, Twitter, LinkedIn and Pinterest.
Security Cameras: Common Positioning Mistakes
When security cameras are installed and positioned properly, they can provide effective security and video footage to protect your property. However, simple mistakes when implementing a security system can negate its effectiveness. To maximize your security systems performance and efficiency, be sure to avoid these common security camera mistakes.
- Multitasking
Try not to assign too many tasks to a single camera, as these will likely be executed poorly. Choose a single goal, such as capturing a face, a license plate, or general coverage, and optimize the placement and settings for that goal.
- Height
While the highest point of your property may seem ideal to capture a wide viewing range, it will not provide detailed images for identification. You want to place cameras high enough to deter tampering and vandalism while still finding a balance between the ultimate goal, the effective range, and number of cameras you are employing. This is why careful planning and calculations are crucial.
- Wide Dynamic Range
Doorways and windows are prone to an imbalance of light distribution, and, therefore require Wide Dynamic Range (WDR). Without it, you may not be able to capture a decent image unless the camera is in the proper angle or the person looks directly into the camera. Be sure to choose the right features for the appropriate locations and environment.
- Fixed Vs. PTZ
Because of their abilities, PTZ (Pan/Tilt/Zoom) cameras tend to be more appealing to customers. The problem is that after taking advantage of the features, the camera is hardly ever returned to its “home” location, and thus, is left focusing on less important areas. While they can be helpful tools in various situations, PTZ cameras are better used in conjunction with fixed cameras. That way, fixed cameras will always be focused on the key areas while the PTZ cameras can monitor the surrounding areas or points of interest as necessary.
- DVR/NVR Placement
Protecting your equipment is ever important, but sometimes, users leave the central brains of the systems as an afterthought. Be sure that the placement of your DVR/NVRs is both secure and efficient for your system.
- Lighting
You need to consider lighting, especially if you need to capture video overnight. Aside from night vision, be mindful of the available light in your camera locations. Be sure not to mount cameras too close to bright lights, which can disrupt the view.
- Masking High Traffic
It is important to adjust and program each device for a maximum balance of capturing required information and maximizing storage returns. If this is neglected, you may cause your DVR/NVR to shorten, thus limiting video retention.
- Proper Retention Calculation
Choosing a system that does not allow for customization of video retention time will limit your security system’s flexibility. Instead, look for systems which will allow you to modify your storage options based on your individual needs.
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Maintenance Tips For Your Security Camera System
Keeping your security camera system in good condition and running sufficiently is very important. A routine system maintenance schedule will ensure you are getting the most out of your system. Here are some smart practices to consider when it comes to maintaining your security system.
- Semi-Annual Inspections
You want to inspect both your indoor and outdoor cameras for any signs of corrosion and replace any connectors that show signs as this can cause your equipment to short out. Power supplies should be inspected to ensure that your system hasn’t lost power due to tampering, burn out, natural disasters or other unexpected events. If you have a UPS, make sure the battery is fully charged and does not show any warning lights.
- Clean Camera Lenses
Check your security cameras lenses for dust, smudges, water spots and other elements. A dirty lens can render your camera useless because the video and image quality will be compromised.
- Check Security Camera Positioning
Evaluate your camera positioning and adjust accordingly based on your current surveillance needs. You also want to ensure your cameras have not become loose as this can interfere with recording quality. Jiggle the area to make sure there are no vibrations – tighten and adjust as necessary.
- Replace Malfunctioning Cameras & Parts
If you notice a decline in the performance of your security cameras, it is wise to replace them before they become completely useless. While you are inspecting your system, take note of any issues that need to be addressed (ex. broken parts). It is recommended that you purchase replacement parts or accessories from the same manufacturer or a trusted seller to ensure you are purchasing real parts. These usually have warranties and are less likely to deteriorate prematurely.
- Landscaping
Make sure your outdoor cameras still have a clear view. Be sure to trim all vines, bushes, trees, and other foliage around the cameras to prevent obstructions. In addition, you should make sure any animals (ex. birds, squirrels, bees) have not made a home near your cameras.
- Check Housing & Weatherproof Function
Although you enclose your cameras in weatherproof housing, you must make sure that the housing has not been compromised. Open the camera housing to check for water, condensation or dirt, to confirm that your housing is still protecting your equipment. Furthermore, too much sunlight or water exposure can damage your cameras, thus protecting your cameras with an encasing or small shed is advised (especially if your cameras are not designed to withstand these elements).
- Check Cable Connections
When your security cameras stop working properly, more often than not, it comes down to loose connections or worn out cables. Examine all of your cable connections, including those connected to your security cameras, DVR, and monitor, for any cables that show signs of wear and tear. Address any potential issues to ensure your cables and equipment are securely connected and receiving power.
- Save The Manual
When you purchase and install equipment, you should receive a manual – store this in a safe and accessible place. You can refer to your manual to troubleshoot any issues before calling a professional (which can save you money in the long run).
Keeping your security system up and running protects your investment, your property, and you. Aside from your own semi-annual inspections, you may want to have a professional evaluate your system annually. This can help maintain the integrity of your system and they can advise you on possible upgrades or share helpful tips.
If you’re looking for affordable security cameras and surveillance equipment, please visit SecurityCamExpert.com. Browse our selection online or inquire about site surveys, installation services, or request a free quote by calling 888-203-6294 today! You can also connect with us on Facebook, Google+, Twitter, LinkedIn, and Pinterest.
Tips For Improving Your Home Security System
Home security camera systems help home owners protect their property and loved ones. They provide an extra set of eyes to monitor your home whether you are at home or away. Because of the financial investment, it is important to ensure that everything is working properly.
There are many ways in which you can optimize your surveillance cameras to get the most out of your security system. Here are a few smart security tips to improve your system.
Use Motion Detection
A security camera that is recording everything all the time sounds good in theory, but will require a large amount of memory and power. It will also be more difficult to sort through the mundane footage to find what you are looking for.
Thanks to motion detection, your camera does not have to record all the time. Motion detection enables your camera to start recording when activity in the field of view triggers the sensor. This means you will not need to worry about running out of storage space and makes it easier to sort through your recordings.
Consider Location
Choosing the right location for your security cameras is crucial. Be sure to adjust the angle of your camera to maximize your field of view and ensure that obstructions, such as trees or bushes, do not block the camera’s view.
Other Home Security Solutions
Although security cameras are important, they cannot do everything. Pairing your security camera system with a high quality and reliable alarm system can increase your home security overall and may even help with insurance discounts.
Multiple Cameras
While an outdoor security camera is common, often times, one camera is not enough. If there’s only one security camera present, it’s likely that burglars will work around that. You want your security cameras to monitor high traffic areas and points of entry (ex. front door, back door, first floor windows). That way, you get more comprehensive video surveillance should you become a target for home invasion.
Proper Maintenance
You can’t just set it and forget it when it comes to your surveillance system. Keeping your cameras clean and any potential obstructions at bay will help maintain the performance and effectiveness of your system. Skipping routine maintenance checks may cause your cameras to miss important moments.
Do you have any other home security tips? Share with us on Facebook, Google+, Twitter, LinkedIn, and Pinterest.
For a great selection of affordable security cameras and CCTV surveillance camera systems, please visit SecurityCamExpert.com. For more information about our installation services or to request a free quote, please call 888-203-6294.
Motion Detection: How It Works
Security cameras equipped with motion detection can be very helpful for home and business owners. Motion sensor cameras allow users to rest easy knowing the built-in sensors will alert them when activity is detected, eliminating the need for monitoring live feeds around the clock.
While motion detection can be very convenient, it can also prove to be a nuisance. False alarms caused by various reasons, such as pets, natural environmental changes, or even changes in lighting, can be frustrating, confusing, and a waste of time. In order for you to make the most of the motion detection feature, here’s what you need to know.
Types of Detection
While there are many different technologies that detect motion (ex. light pulses, thermal measurements, radio waves), for consumer security cameras, there are two methods that are commonly used.
Passive Infrared (PIR)
This method detects the ambient heat emitted by all living beings and is sometimes referred to as “heat vision.” The sensor is triggered when it detects enough movement of these warm “objects” and/or a significant temperature disparity between the object and the background scene. When triggered, it signals the security camera to start recording, and thus, the user is alerted.
Computer Vision (CV)
This approach involves camera software that analyzes sequential frames of live video for differences and registers a motion event when a significant change is detected. With that said, CV includes many different methods, which depend on the desired outcome and technical preference of the designers.
Of these methods, one of the easiest involves looking for a significant change in pixels over short periods of time compared to the longer term average. This will produce a simple ‘something happened’ signal. Another method tracks groups of pixels and tries to identify directional patterns in order to recognize moving objects.
What all of these methods have is common is the end goal – to detect motion and, if possible, determine the shape of the object that moved. Once that goal is achieved, more advanced methods can be applied to classify the moving object (ex. person, animal, vehicle, tree) to determine which detection signals are important (ex. person or vehicle) or irrelevant and can be dismissed (ex. animal or tree).
Pros & Cons
- PIR sensors are more reliable than CV-based cameras when it comes to filtering out insignificant activity (ex. curtains fluttering in the breeze from a nearby fan, change in the light streaming through a window)
- PIR is power efficient, thus often used in battery-powered cameras. PIR keeps these cameras them in a low-power, non-recording state until the PIR sensor detects motion. When motion is detected, they switch to a high-power recording state for a fixed period of time (ex. to capture a 30 second video clip) or until motion stops.
- The low-power mode of PIR can be a disadvantage as it may take more time to wake up and start recording than CV-based cameras. Consequently, you may miss part of the action that triggered the motion alert, such as the intruder’s approach when their face is most visible, which matters with forensic evidence. By nature, they are also incapable of detecting motion through glass, thus are not suitable for scenarios such as monitoring your yard with an indoor cameras aimed through a window.
- CV motion detection provides greater analysis of the scene and for identification of the object creating motion through advanced features (ex. person detection, facial recognition). However many of the algorithms that make this possible are too computationally intensive to run locally on the camera. Instead, they are computed on remote servers in the cloud, where they often can only be unlocked with a paid subscription, which can add significantly to the total cost of ownership of the camera.
- Because CV detection is also dependent on the quality of the algorithms, it is also more susceptible to false alarms. That is, any large change (ex. spinning ceiling fan, leaves blowing outside window, change in ambient lighting) can register as motion.
False Alarms
Of course, false alarms are one of the most frustrating downsides to motion detection. Luckily, manufacturers are aware of this and offer different ways to reduce these instances.
- PIR cameras usually allow users to adjust the sensitivity level within the accompanying app so that more- or less-pronounced motion triggers the sensor. For example, reducing the sensitivity level could require a moving object to be warmer or closer to the camera for it to be triggered.
- CV offers more options for combating false alarms. A popular option is to set motion detection zones, which basically allows you to tell your camera to ignore activity in certain parts of the field of view while focusing on specific areas for motion. This approach is fairly effective as your camera can focus on windows and doors (where breaches are most likely to occur) rather than the activity within your home.
- Based on the geometric properties of a moving object, CV is able to make quick judgment calls. For example, something very small relative to the field of view is either a small object (ex. a floating dust mote) or a larger object far away, both of which are not cause for triggering any sensors.
- With more advanced technology, CV-based cameras may also include person detection or facial recognition to decrease false alerts. Both technologies require a pre-existing database of recognized individuals and usually require a few weeks of use before accurate results are produced. And while these features are advanced, they are only as strong as the algorithms behind them (which is why different cameras with facial recognition can produce different results).
Motion detection is still a work in progress, and at this point, you likely get what you pay for. The good news is that our technologies are always improving, thus, motion detection has the potential for greatness on the future.
What are your thoughts on motion detection security cameras? Have you had success or failure with them? Share your experiences with us on Facebook, Google+, Twitter, LinkedIn, and Pinterest.
Visit SecurityCamExpert.com to browse our wide selection of affordable CCTV security cameras and surveillance packages. Call 888-203-6294 to request a site survey or free quote today!
The Benefits Of PTZ Cameras
Looking back, Pan Tilt Zoom (PTZ) cameras have come a long way. As technology as has advanced, PTZ cameras have decreased in size and weight while offering even better features and functions.
These high-quality PTZ cameras are ideal for monitoring large, open spaces both indoors and outdoors. Some examples include casino, malls, airports, and stadiums, where effective and efficient surveillance is necessary.
As with any security system, selecting the right PTZ camera system comes down to individual security needs. Here are some important features to consider when choosing PTZ cameras.
Video Analytics
Now nearly all PTZ systems are equipped with video analytics which provide numerous benefits:
- Directional Behaviors – notify operators or active cameras when someone or something moves against the designated flow of traffic (ex. someone trying to walk into an exit path).
- Abandoned Object Behaviors – enables video system to alert security personnel when an object (ex. backpack, box, or briefcase) is set down and left unattended.
- License Plate Recognition, Facial Detection, Perimeter Detection & related analytics.
- Tripwire Behavior – activates a camera or triggers an alarm or other operations when a person or object moves into a restricted area.
Auto-Tracking
Arguably one of the most valuable features of PTZ cameras, auto-tracking controls the PTZ actions of a camera to automatically track (keep in field of view) an object in motion. This can be triggered manually or automatically by defined rules. Once a rule is triggered, the camera automatically zooms in and tracks the defined target.
Advanced Video Compression
The H.265 compression standard enables much higher compression ratios with lower bandwidth and storage requirements than before, providing higher resolution images and deeper systems integration. However, optimized implementations of the H.265 codec are emerging, like the Smart H.265+. In comparison to the standard h.265 video compression, Smart H.265+ reduces bit rate and storage requirements by up to 30 percent.
High-Definition Video Over Coax
Legacy coax systems can be easily upgraded to HD video using existing analog infrastructure thanks to HD video over coax. With this option, there is no latency in system responsiveness and no video compression, so the images maintain a high level of detail without stretching or distortion. In addition, there is no need to install a separate cable to control PTZ since coaxial cable allows for bidirectional data transfer. Overall, this is a cost-effective way to upgrade PTZ cameras.
Infrared (IR) Illumination
With PTZ cameras, IR illumination is applied as needed. There is usually an array of three distinct areas of infrared illuminators – each with a different angle of dispersion for the IR light: wide angle, telephoto, and interim angle.
As an example, when an operator optically zooms in from wide angle to telephoto, IR illuminator LEDs will turn on and off to provide the appropriate illumination. And when the camera is in zoom mode, it adjusts the IR illumination so that the system is not flooding the entire 120-degree view. These automatic modifications illuminate the area in view, producing better video and reducing the amount of power required.
Video Quality Expectations
Zoom Factor vs. Focal Length – Keep in mind that a higher zoom factor does not always provide a better video image. The focal length of the lens will provide a better indication of what is appropriate for an application.
Plastic vs. Glass – Remember not all lower domes (the protective housing at the bottom of a PTZ camera) are the same. While most manufacturers use a plastic lower globe to protect the camera and optics, this can offer a lower degree of optical clarity. As the camera pans up toward the horizon, it begins to view through the globe in areas where it has the least uniformity (where most optical distortions can occur).
Glass lower globes (or a flat piece of glass, as provided by some companies) are more optically pure and consistent in comparison. These glass coverings enable dome systems to feature higher resolution sensors and longer optical zooms thanks to their clear and consistent nature.
Some modified lower dome designs allow for above-the-horizon viewing – ideal for those who need to monitor rough terrain or scenes on different planes of view.
Thinking about installing a PTZ system on your property? We carry a great collection of quality PTZ security cameras. Browse our stock online or call 888-203-6294 to request a site survey, free quote, or inquire about our installation services. Connect with us on Facebook, Google+, Twitter, LinkedIn, and Pinterest.
Positioning & Installation Tips For IP Cameras
IP cameras offer excellent benefits for home security, including ease of installation and advanced functions. However, if not installed or deployed properly, these benefits can be negated.
Whether you are installing your own security system, or you are having it professionally installed, be sure that the right cable is being used and that it is installed correctly.
Here are more tips for IP security camera installation:
- Be sure that UTP connected devices (ex. couplers, modular plugs and wall plates) match the Category of the cable used, and that this is done consistently throughout the installation.
- For optimum performance (by design and specification), cable runs in an IP camera system can only extend up to 295 feet.
- The bend radius of both Cat-5e and -6 cables must be limited to four times the cable diameter – the acceptable bend radius is no less than 1 inch.
- The pull tension while installing Cat-5e/-6 cannot exceed 25 pounds.
- Limit the length before stripping the sheath from a cable in a wall box so that the excess can easily be pushed back into the wall cavity.
- Do not staple Cat-5e/-6 cable. Use D rings, bridle rings, J hooks and other devices that do not risk altering the outer form or dimensions of the cable.
- Keep a 6-10 inch parallel distance between Cat-5e and -6 cables and high-voltage wires (120/240VAC).
- Strip Cat-5e/-6 cables back as little distance as necessary when attaching them to connecting devices.
- Use either the T568A or T568B connection format and stick to just one throughout the entire installation for conformity.
Aside from the proper cable, you must take the surroundings of your security camera placement into consideration. Be sure that the IP cameras you choose are suitable for the environment in which you install it.
- Be mindful of the different lighting conditions your security cameras will be subjected to when selecting cameras.
- When considering camera placement, keep in mind the field of view and any obstructions that might prevent a clear view of the area.
- Be sure there is sufficient network connectivity available in the vicinity of where your camera will be placed.
- For all outdoor cameras, especially in areas known for lightning, use surge protection.
- Assure that the PoE power supply you use is adequate for the job. Be sure to compute the power load before making a final choice.
- To assure the integrity of the camera (especially in areas prone to crime), use vandal-proof housing.
- Cat-6 UTP is always best, but Cat-5e is a cost-effective alternative, doing an adequate job of handling most video transport needs.
- Using fiber instead of metallic has its advantages. Foremost, fiber allows you to run camera signals at greater distances and with greater bandwidth than metallic cable can provide.
- Last but not least, use safe installation practices to assure that everyone goes home at the end of the day.
If you are looking for affordable prices on professional security camera installation, give us a call today 888-203-6294. You can also browse our CCTV surveillance selection online at SecurityCamExpert.com. Stay connected with us on Facebook, Google+, Twitter, LinkedIn, and Pinterest.
Common Outdoor Security Camera Issues
Outdoor security cameras act as your first line of defense against potential burglars. The presence of outdoor security cameras alone can act as a deterrent and they can provide you with evidence should anything happen. Because they are placed outdoors, these security cameras are susceptible to possible dangers which may compromise your security system. Here are a few outdoor security camera risks and how to safeguard your security equipment.
Vandalism & Theft
Unfortunately, to cover their tracks and eliminate possible evidence, thieves may resort to vandalism and theft.
In order to protect your equipment, you will want to choose vandal-proof security cameras or CCTV cameras with metal housings or covers. These not only make it harder for them to be stolen, but they also help to keep your security camera clean.
You should also consider the placement of your security cameras. Installing outdoor security cameras where they are visible yet out of reach will help to maximize their effectiveness and reduce the risk of damage.
Lighting & Thunderstorm
Though it may seem highly unlikely, there’s still a chance your security equipment may get struck by lightning, especially in areas where thunderstorms are common.
Because metal can be highly conductive, avoid mounting your cameras to a metal. Also, be sure that your CCTV or PoE security system is grounded properly. This can minimize damage by redirecting the lightning current into the earth ground.
In addition, employing lightning surge protectors prevents voltage spikes by blocking voltage that exceeds specific thresholds and instead directing the excess into the outlet’s ground line.
Should the thunderstorm result in power outage, UPS (Uninterrupted Power Supplies) units will provide reliable backup power. They will even work if you unplug all system, cable, modem and antenna connections during a thunderstorm.
Hackers
Hacking is a big concern for network IP cameras, as hackers can possibly jam the operating device or decrypt your safety code.
In these cases, you will want to boost your network security with WPA2 (Wi-Fi Protected Access II) security protocol. You should also change your passwords frequently and make your passphrase complicated.
Firmware
In addition, updating firmware regularly for your IP security cameras is key. Some may be hesitant to perform this task as it can be inconvenient, however, these updates often contain patches for recently found loopholes or vulnerabilities that may threaten your system.
Be sure to update your firmware every few months, or check the product website to ensure you are using the latest firmware version. Also, remember to read the information carefully before upgrading.
Spider Webs or Bugs
If you employ IR security cameras outdoors and under eaves, they are likely to attract nocturnal bugs and insects that are naturally drawn to lights. Unfortunately, bugs and spider webs can compromise image quality and may even trigger false alarms from motion sensor cameras.
These issues can be combated with regular cleaning and maintenance of your outdoor security cameras. Using natural insect repellents (ex. citrus, eucalyptus, lavender, peppermint) are reported as very effective in keeping spiders away. In addition, you may use spider repellents, contact sprays, aerosol sprays and web eliminators around the camera (not directly on the lens for obvious reasons). Lastly, if you reduce the motion-detection sensibility accordingly, you will reduce false alarms.
Extreme Weather Conditions
You may worry about the performance of your security cameras if you live in areas that experience extreme and inclement weather conditions (ex. freezing winters, sweltering hot summers). Luckily, security cameras come with an IP (ingress protection) rating that determines their ability to sustain harsh weather. For example, an outdoor security camera with IP rating 66 is also known as completely water-proof (can withstand solid matter and liquid, such as dust and rainwater respectively).
Reflection Of Lights
Beware of pointing your outdoor security cameras at reflective surfaces (ex. ponds of water, glass panels, car windows) as it will cause lens glare and obstruct viewing.
To avoid this, place front door and back door security cameras outside and out of reach. Also, adjust your camera field of view to shy away from potentially reflective surfaces.
Fogging, Clouding, Or Condensation
While security cameras are often assembled to be sealed-up and air-tight to prevent moisture seeping into the lens, sudden changes in temperature may cause fogging.
This issue is common in the early morning and will sometimes go away on its own. If the problem persists, you may want to consider placing a packet of silica gel inside the housing case. Also, regularly wiping the outer lens covers with a micro-fiber cloth will help protect your cameras.
How do you maintain your outdoor surveillance system? Share your tips with us on Facebook, Google+, Twitter, LinkedIn, and Pinterest.
To shop our selection of outdoor security cameras, CCTV cameras, IP surveillance systems, and more, please visit SecurityCamExpert.com. Looking for a free quote? Call 888-203-6294 today!
Surveillance System Storage
Security cameras play a major role in home security. Aside from deadbolt locks and alarms, security cameras can provide video footage of incidents and alert you as needed. Of course, the quality of the security camera and surveillance footage is important, and the proper video storage has a direct impact on this.
When it comes to video surveillance storage, there are basically two options – local and cloud. Evaluating their differences can help you narrow down your security system options.
Local Storage
Local video storage saves your footage locally – usually via microSD cards. Security cameras that offer local storage have built-in microSD slots that can typically handle anywhere from 16GB to 128GB. These cards may be included in your purchase or you may have to purchase them separately.
Once the microSD card is properly inserted in the security camera, you may then set your preferences in the accompanying mobile app for video storage. You may choose event-based recording, which only saves clips when motion or sound is detected, or continuous recording, which records everything around the clock.
When the card is full, you may continue recording (by overwriting the previous footage), or stop recording and manage footage manually. You can usually view saved clips in the app, but you may also removed the microSD card and stick it into a card reader or card adapter if you would like to save videos to your computer.
Those who are concerned about privacy often prefer this option, as you are in charge of managing your videos. In addition, your video surveillance footage is easily accessible without having to pay a monthly fee (which is common with cloud storage).
Cloud Storage
Much like smartphones store photos and other data on “the cloud,” security companies seem to be following suit with video surveillance footage. Rather than purchasing additional parts and manually managing your videos, you can opt for cloud storage.
Your event-based or continuous recordings are sent off to remote servers and you are charged a monthly fee based on the service provider and the type and amount of surveillance footage you store.
These subscription-based cloud storage services are generally more convenient than dealing with microSD cards, however, you do not have control over these remote servers. Thus, outages can cause major issues, such as delays in accessing your saved videos. And for the privacy-conscious, you might always wonder who has access to your footage.
Local Vs. Cloud
It really just comes down to your own needs and preference. Local storage gives you more control while cloud storage provides more convenience. If you really can’t decide on one or the other, there are hybrid options on the market that offer a mix of both.
Along with other factors, video surveillance storage is important when deciding on a security camera system. If you need any help choosing a security camera system, or simply want to view some cost-effective quality CCTV surveillance cameras and systems, visit SecurityCamExpert.com or call 888-203-6294. Our representatives are happy to answer questions and provide you with a free quote.
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Security Camera Image Sensors: CCD Vs. CMOS
Choosing the best security camera system can be based on many factors. When it comes to the individual security cameras, the quality of images and video captured is largely dependent on the image sensor.
The image sensor (also known as the “eye”) determines the imaging capability and performance of your security camera. Their duty is to convert an optical image into an electrical signal, and is either a charge-coupled device (CCD) or a complementary metal-oxide semiconductor (CMOS) active pixel sensor.
To better understand which type of image sensor will work best for your security camera needs, we will take a look at the differences between CCD and CMOS.
What Is A CCD Image Sensor?
CCD’s receive light and convert it to electrons, then carry the electrons to a specific area across the chip to be processed. The conversion of analog light signals into digital pixels takes place in the chip without distortion. The special manufacturing process of CCD’s produces high-quality sensors in terms of fidelity and light sensitivity.
What Is A CMOS Image Sensor?
The CMOS sensor came from the MOS active pixel image sensor which emerged in the 1960s. Since then, its design and function has greatly improved, containing integrated circuitry and arrays of pixel sensors. Unlike the CCD, CMOS sensors process the elections at the same place that it receives the light, thus making it faster and smaller. The CMOS is able to do so because it has multiple transistors at each pixel, offering flexibility because each pixel is treated individually.
CCD vs. CMOS
Now that we have covered the basics, we can compare the strengths and weaknesses of CCD and CMOS cameras.
- CCD cameras provide high-quality images with low noise (grain), whereas CMOS cameras are more susceptible to noise. CMOS cameras often need more light to create a low noise image at proper exposure.
- CCD cameras possess better light sensitivity than CMOS cameras, since the CMOS sensors have more transistors next to each pixel, which may interfere with the amount of light that reaches the photodiode (where the picture is processed).
- CMOS sensors consume less power since the processes are confined to a smaller area. CCD sensors consume as much as 100 times more than CMOS.
- CMOS chips require a simple and traditional manufacturing process (same as creating microchips) making them easier to produce and much more affordable than CCD. As mentioned, CCD sensors require a special manufacturing process which makes them more expensive.
Common Applications
In these common applications, one camera outshines the other.
- Because of their superior light sensitivity and large effective imaging area, CCD cameras are better suited for low light conditions than CMOS cameras.
- Since the CMOS image sensor is compact, CMOS cameras are better for hidden or covert surveillance.
- Choose CMOS cameras for high-frame speed video shooting since the CMOS image sensor has a very fast processing speed (thanks to its ability to directly convert photoelectric signal to digital signal).
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To shop our stock of security cameras and surveillance equipment, including CMOS cameras and CCD cameras, visit SecurityCamExpert.com. If you are located in Southern California and would like to schedule a site survey or request a free quote, please call 888-203-6294.