Camera wipers, demisters & heaters (47)
Lite Series is suitable for users who requires high quality monitoring products at a reasonable price. It is cost effective and offers high performance, which makes it an ideal choice for residential and small-medium business applications. This series offers an option of a wide range of technologies such as Full-color and Starlight, providing various solutions for different scenarios.
Hikvision, an IoT solution provider with video as its core competency, announced its latest traffic product offering - the All-Rounder ITS camera - designed to improve road safety and optimize traffic flow. As the name implies, the camera encompasses different skills and abilities, boasting speed detection, traffic violation detection, automated plate recognition, and vehicle attribute analysis in one housing. “Hikvision is always pushing the boundaries of video technologies. Beyond the visual range that is perceived by video cameras, the abilities to understand other kinds of “senses” would allow even more precise monitoring and reporting of events or accidents,” says Frank Zhang, President of International Product and Solution Center at Hikvision. “This is multi-dimensional perception, a trend that we think will affect the security industry in the future.” Optimising traffic flowThe new ITS camera is designed and developed with this multi-dimensional concept in mind. It is Hikvision’s first camera to integrate three otherwise separate modules in one unit with no compromise on performance, making the camera neat and flexible to be deployed for demanding environments, all in an easy and cost-effective manner. The product provides an HD camera, speed radar, and light array inside one housing. Specifically, it works with a multi-tracking radar that continuously monitors up to two or three traffic lanes - depending on the camera model, and identifies the speed and position of objects in the monitored area at a speed of up to 300 km/h. If a vehicle violates the speed limit, the embedded radar triggers the connected camera and a picture is taken of the vehicle and its license plate. Conventional ANPR systemsIn the event of infringements of traffic rules such as wrong-way driving, improper lane usage, or even failure to use a seat belt, the camera will capture images of the corresponding vehicle, recognize its license plate and relevant information including vehicle type, color, brand, and direction of movement, which can be addressed to the authorities in real-time or stored on board. Incident detection helps to improve overall driving standards, which ultimately reduces the number of accidents, improves road safety and further evens traffic flow. Employed with Deep Learning algorithms, the camera is able to recognize a much higher number of license plates and with higher efficiency than conventional ANPR systems. Its GMOS sensor further ensures brighter and smoother images to be reproduced in challenging lighting conditions, especially in low-light environments. The camera’s embedded supplemental light features a 16-bead light array, offering an IR range of up to 40 metres at night. Seamless onsite configurationAs all of these functionalities are integrated, the single product itself outperforms conventional ITS products with space-saving and less cabling for easier installation. It supports flexible pole- or side-mounting, which makes onsite configuration effortless. The Hikvision All-Rounder ITS camera is ideal for various scenes such as urban roads, highways, tunnels and toll stations.
Industrial level ADS LCD panel, suitable for continuous 24/7 operation Ultra-narrow 3.5mm bezel-to bezel design(2.3mm bezel on the left and top sides and 1.2mm bezel on the right and bottom sides) High contrast ratio and high screen resolution greatly enhance the video layering, and present the details of the video High fidelity digital processing, brilliant and vivid video Built-in 3D COMB filter and 3D noise reduction Wide array of connectivity options HDMI, DVI, VGA, DP(daisy chain), RS232, OPS, Audio Built-in picture splicing function Infrared, RS232 dual mode, supporting remote PC control Professional thermal design to extend equipment lifespan Built-in power, low energy consumption, ultra-quiet Fast stack installation, professional project design, supporting arc-shaped mounting Widely used in surveillance center, dispatching platform, safe city, commercial display, etc.
Launched by Dahua Technology, Dahua WizMind is a full portfolio of solutions composed of project-oriented products including IPC, NVR, PTZ, XVR, Thermal and software platform which adopts industry-leading deep learning algorithms. Focusing on customer's requirements, WizMind provides precise, reliable and comprehensive AI solutions for verticals. Series Overview The Panoramic Network Camera + PTZ Camera can splice up to a 180° horizontal view to give you a wider view. Working with high-speed PTZ, the camera can display the details. With advanced video analysis algorithm, the camera supports linkage between panorama and details, and situation analysis. Functions Panoramic SplicingWith advanced splicing algorithm, Dahua Panoramic Splicing technology deletes overlapped area and splices multiple images to be a complete panorama. The field of view of the spliced image can be up to 180°, which largely improves surveillance efficiency and user experience. Generally, after splicing, the field of view of four-sensor camera can be 180°. Smart TrackingWith advanced algorithm, Dahua network camera can detect targets, track targets with speed dome, and view details. Crowd DensityWith deep learning algorithm, Dahua Crowd Density technology can detect the crowd density on the image, and display it on heat map; it can detect people quantity and density in selected area and set threshold. When the number or density is larger or smaller than the threshold, it triggers linkage. Vehicle DensityWith deep learning algorithm, Dahua Vehicle Density technology analyses the vehicle situation in the image, such as vehicle number in selected area. You can set threshold, and when the number is larger or smaller than the threshold, it triggers linkage. Perimeter ProtectionWith deep learning algorithm, Dahua Perimeter Protection technology can recognize human and vehicle accurately. In restricted area (such as pedestrian area and vehicle area), the false alarms of intelligent detection based on target type (such as tripwire and intrusion) are largely reduced. ROIDahua Regions Of Interest (ROI) technology allows you to select themonitoring area of interest to improve image effect in the selected area. AR Panorama Dahua AR panorama technology generates wide-field of view through panoramic merging and splicing. The software overlaps the cameras as tags in the image. Click the tag to display the corresponding cameravideo, which makes monitoring visual and convenient, and improves command efficiency. Cyber SecurityDahua network camera is equipped with a series of key security technologies, such as security authentication and authorization, access control, trusted protection, encrypted transmission, and encrypted storage, which improve its security defense and data protection, and prevent malicious programs from invading the device. With UL CAP Certification, TÜV Rheinland Protected Privacy IoT Product Certification, and ETSI EN 303645 Certification, Dahua network camera better meets the demands of cyber security and privacy protection.
Allows to monitor and view live and recorded video from multiple exacqVision systems simultaneously using mobile device Simple PTZ & Digital PTZ control Activate alarms and triggers Works with low & high bandwith networks Intuitive search Playback recording View video as close as desired with the interactive pinch-to-zoom functionality
NDAA compliant and it exceeds international standards for drift, stability, accuracy and uniformity and meets FDA COVID-19 Enforcement Policy criteria Accurate to ±0.2°C / 0.4°F Dual Image Sensor with thermal detector Up to 5MP resolution 2592 × 1944 with visible camera, 384 x 288 resolution with thermal camera True day / night Built in IR & white light illuminator
Superior low light performance to see important details Face detection enhancement to automatically increase video quality around detected faces Blur detection to alert users when camera focus or cleaning is necessary Quick and easy installation and configuration One-touch focus and motorized zoom Multiple motorized lens options Expanded browser support – IE, Chrome, Firefox, Safari, Windows, Mac, Linux
High quality imaging with 2 MP(1920 × 1080 @30 fps) resolution Clear imaging against strong back light due to 120 dB true WDR technology The camera battery can work up to seven days in rainy or cloudy days if it is fully charged 40 W photovoltaic panel, 20 Ah chargeable lithium battery Support battery management, battery display, battery high-low temperature protection, charge-discharge protection, low-battery sleep protection and remote wakeup LTE-TDD/LTE-FDD/WCDMA/GSM 4G wireless network transmission, support Micro SIM card Camera: Water and dust resistant (IP67)
Hikvision announced a brand-new addition to its DeepinView camera line: the Dedicated Subseries. This unprecedented new addition loads a batch of AI-powered deep learning algorithms into each unit, boasting stunning performance and cost-effective pricing. Enhanced AI capabilities Over the last few years, artificial intelligence (AI) has been applied in many ways in security markets. As technology advances, AI chipset performance has improved to enable massive computing power using various algorithms and contributing to multi-intelligence functionality and higher accuracy. The new Dedicated DeepinView Cameras are an example of these advances, incorporating several AI-powered deep learning algorithms in one unit. What’s more, these algorithms can be switched essentially putting 5 or 6 unique cameras in one housing. “Embedding switchable algorithms is a significant step for Hikvision to take in its AI product development. In a world of ever-changing technologies and functionalities, this approach creates great value for end users to try new technologies to ensure security, as well as to implement business intelligence and other applications,” says Frank Zhang, President of the International Product and Solution Center at Hikvision. “The benefits of our new offerings are numerous including reduced costs, improved efficiency, and speedy and effective incident response.” Switchable algorithms The Dedicated DeepinView cameras combine two product categories – the first is vehicle analysis where cameras combine automatic number plate recognition (ANPR) with vehicle attribute recognition. Attributes include the vehicle’s make, color, and direction of movement. Typical uses include installation at checkpoints of city streets and at entrances & exits of buildings or industrial parks. Models in the second category boast six switchable deep learning algorithms in one camera housing, including facial recognition, face counting, hard hat detection, perimeter protection, queue management, and multiple-target-type detection (detecting multiple targets and multiple types of targets at once). Accordingly, users can simply enable an algorithm manually for dedicated use, then later switch the algorithm as needed. Here is one example: hard hat detection. This algorithm can be used on construction sites to ensure safety and compliance. Specially-equipped DeepinView cameras can precisely distinguish a worker on the site wearing a hard hat from those without, and automatically deliver alerts when the hard hat violation is detected. Another example: in a retail setting, a face-counting function can be enabled to precisely count customers entering and leaving the store. Repeat customers and store staff can be automatically excluded in the process, helping store managers count new customers with precision. Flexibility among algorithms enables users to also switch among: Perimeter protection – to monitor outdoor areas needing security and deliver accurate alarms upon intrusions. Facial recognition – to grant authorized access to restricted areas in various organizations, such as school laboratories, archive rooms, and hospital pharmacies. Queue management – to better understand customer wait times, optimize staff levels, and enhance customer experience. HD clarity, day and night Equipped with Hikvision’s DarkFighter and LightFighter technologies, these cameras capture vivid and color images in extremely low-light environments or in scenes with strong backlighting where color and brightness balance is extremely difficult. Smooth Streaming mode further ensures a high-quality live feed. The Dedicated DeepinView Cameras are available in 2, 4, 8, and 12 MP resolutions for customers to choose from. More practical and deployable features Furthermore, metadata is supported to allow third-party platforms to receive data from Hikvision cameras for real-time video analysis or recorded into footage archives to enable rapid searching forensic evidence. Finally, these camera models also offer Vibration Detection for outdoor use, which detects and notifies users of vandalism. Find out more To find out more about the new Hikvision Dedicated DeepinView cameras, please visit https://www.hikvision.com/en/products/IP-Products/Network-Cameras/DeepinView-Series/
Hanwha’s PNM-9085RQZ multi-directional camera features motorized varifocal lenses for precise control of focal length, angle of view and zoom for each direction. Each sensor supports remote PTRZ (pan, tilt, rotate, zoom) control for efficient installation and easy adjustment. The 20MP (5MP x 4) PNM-9085RQZ features built-in IR illumination for each sensor. The PNM-9085RQZ allows users to quickly change the camera to 180/270/360 degree configuration as well as custom presets, merging an element of multi-imagers and PTZ presets.
Agile, scalable, secure, & easy to use, Ava Aware is a powerful video management system equipped with integrated machine learning capabilities accessible in the cloud or on-premises. Aware analyzes all video feeds from all your cameras all the time & in real-time. It identifies objects & events & sends instant notifications & alarms based on rules and unusual activity detection to help your team focus on what really matters.
Security requirements change and market trends evolve. One constant remains: the need for intelligent networked surveillance solutions – in every market, for any application. At the heart of Hanwha Techwin’s new product development is the Wisenet 7 System on a Chip (SoC). Developed in-house and built in Korea, we’re continually enabling new features and analytics. Wisenet 7 is most technology-intensive, innovative and feature-rich SoC…proving the biggest ideas often have the smallest beginnings.
Dahua TiOC integrates 24/7 full-color monitoring, active deterrence and AI into one smart, innovative solution, greatly saving time and financial costs for distributors and installers. TiOC is suitable for private places that need to maintain orderliness and warn off intruders, such as villas, shops, warehouses, etc. TiOC can accurately identify real targets with accurate alarm, effectively warn them off with active deterrence, and notify the user with real-time alarm. The full-color image that the camera records provides more useful human/vehicle evidence for future checking and analysis, offering an enhanced protection to residents, shop owners and warehouse managers. TiOC is also ideal for outdoor scenarios such as fire lanes, which need to be always free of obstructions, in most cases vehicles. Give it a try, and you’ll see that the TiOC can effectively maintain emergency lanes clear, working like a responsible guardian that fulfills its duty to enhance public security. The powerful Dahua TiOC Solution offers 24/7 full-color monitoring, active deterrence and AI with WizSense IP cameras, HDCVI 6.0 cameras & XVRs, and upcoming PTZ cameras, making it ideally applicable to villas, shops, warehouses, fire lanes, and places alike. With its mission of “Enabling a safer society and smarter living”, Dahua Technology will continue to focus on “Innovation, Quality and Service” to serve its partners and customers around the world.
System OverviewExperience 1080P full HD video and the simplicity of using existing cabling infrastructure with HDCVI. The Lite series 1080P HDCVI camera features a compact design and offers a high quality image at a friendly price. It offers various motorized/fixed lens models with a multi-language OSD and HD/SD switchable output. Its structural flexibility and high costperformance makes the camera an ideal choice for SMB solutions. Functions 4 Signals over 1 Coaxial CableHDCVI technology supports 4 signals to be transmitted over 1 coaxial cable simultaneously, i.e. video, audio*, data and power. Dual-way data transmission allows the HDCVI camera to interact with the XVR, such as sending control signal or triggering alarm. Moreover, HDCVI technology supports PoC for construction flexibility.* Audio input is available for some models of HDCVI cameras. Easy InstallationHDCVI Quick-to-install eyeball adopts quick-to-install pedestal, which can achieve easier installation than conventional eyeball. Quick-to-install camera reduces time and labor costs. Long Distance TransmissionHDCVI technology guarantees real-time transmission at long distance without any loss. It supports up to 800m(1080p)/1200m(720P) transmission via coaxial cable, and up to 300m(1080P)/450m(720P) via UTP cable.**Actual results verified by real-scene testing in Dahua's test laboratory. SimplicityHDCVI technology inherits the born feature of simplicity from traditional analog surveillance system, making itself a best choice for investment protection. HDCVI system can seamlessly upgrade the traditional analog system without replacing existing coaxial cabling. The plug and play approach enables full HD video surveillance without the hassle of configuring a network. Smart IRThe camera is designed with IR LED illumination for best lowlight performance. Smart IR is a technology to ensure brightness uniformity in B/W image under low illumination. Dahua's unique Smart IR adjusts to the intensity of camera's infrared LEDs to compensate for the distance of an object, and prevents IR LEDs from overexposing images as the object come closer to the camera. Multi-formatsThe camera supports multiple video formats including HDCVI, CVBS and other two common HD analog formats in the market. The four formatscan be switched over through OSD menu or by PFM820(UTC controller). This feature makes the camera to be compatible with most end users' existing HD/SD DVRs. Multi-language OSDOSD menu provides multiple image adjustments and function settings to meet the requirements of different monitoring scenes. The OSD menu includes configurations such as backlight mode, day/night, white balance, privacy mask and motion detect. The camera supports 11 languages for OSD menu, namely, Chinese, English, French, German, Spanish, Portuguese, Italian, Japanese, Korean, Russian and Polish. ProtectionThe camera's outstanding reliability is unsurpassed due to its rugged design. The camera is protected against water and dust with IP67 ranking, making it suitable for indoor or outdoor environments. With working temperature range of -40 °C to +60 °C (-40 °F to +140 °F), the camera is designed for extreme temperature environments. Supporting ±30% input voltage tolerance, this camera suits even the most unstable power supply conditions. Its 4KV lightning rating provides protection against the camera and its structure from the effects oflightning.
Health organizations around the world have created the common awareness that maintaining a safe distance between people is one of the best practices we have to avoid being exposed to COVID-19 and in slowing its spread. As various countries and regions push to reopen businesses and relax stay-at-home orders, social distancing remains an ongoing requirement. More than that, crowd density information is also considered a significant reference in managing the "social distance" of workplaces, businesses and public spaces. Business owners are working hard to keep employees, customers and visitors protected. Dealing effectively with "density" – a new imperative for management and operations – complicates staffing and interpersonal interaction. Limiting the number of people to ensure safety In the current situation, public and private managers and authorities have to do more than ever before to keep people safe, and in many cases efficient calculation of customer traffic will be essential. Hikvision’s Flow Control Solution uses people counting cameras and digital signage, which provides a dynamic on-screen display to show users how many people are entering and leaving a building or an area, and sends real-time alerts in case pre-defined capacity thresholds are exceeded. These people counting camera utilize highly accurate 3D binocular stereo vision and Deep Learning algorithms, making complex counts easy, even in multi-door sites. More important, the Flow Control Solution can be easily and rapidly deployed. It is designed to be simple to use and highly accurate, with options to suit all potential application scenarios. In locations with a single entrance, one people counting camera can be installed at the entrance and connected to digital signage. For multi-entry scenarios, people counting cameras can be installed at each entrance and exit, equipped with I-Series NVRs or HikCentral to calculate numbers of people entering or leaving, so as to accurately provide real-time number data. Multiple entries and exits For example, a supermarket can install a clear and easy-to-understand, dynamic data number display at each entrance to provide real-time updates for people waiting to enter. An alert is generated when the pre-configured maximum is reached, and an audio alarm can be triggered if anyone attempts to enter before the numbers go below that threshold. At present, with expenses more critical than ever, users can use the Flow Control Solution to automatically monitor the situation, empowering businesses and possible reducing the required number of security guards and other resources. Maintaining a safe social distance in public In areas where crowds are unavoidable, such as cash registers in supermarkets and the ticket kiosks at public transportation hubs, managing distances between people queuing (standing in line) is also critical. Authorities in various locations have established specific guidelines and legislation in this area, balancing needs and risks for citizens. Hikvision Dual Lens Cameras (DS-2CD6825G0/C-I(V)(S)) help retail stores and other businesses measure social distancing, and its advanced 3D binocular stereo vision and deep learning algorithm can be configured to trigger alarms according to local regulations and requirements. Users can set the minimum contact distance threshold needed; when the distance becomes less than this pre-set threshold, an instant alarm and popup will appear with audio and video linkage. And there’s more Alongside the Density Control Solution, Hikvision also offers a Mask Detection Solution. This technology ensures that anyone entering a premise is wearing a face mask when they are required to do so. Those without a mask will not be granted entry. The Mask Detection Solution can be delivered in a variety of formats depending on user needs: added to a specialty camera or a Hikvision DeepinMind NVR for users with existing camera systems, integrated into Hikvision’s Temperature Screening Thermal Solution, or as part of a MinMoe door access unit with built-in face detection technology. Entry can be denied if a mask is not worn and/or an out-of-range skin-surface temperature is detected. As businesses begin to emerge from lockdown, they need to find ways to reduce risks of furthering the spread of the virus. This affects whole populations and all their normal activities – from getting coffee on the way to work and boarding public transportation, to shopping and eating out. But there are some technologies that they can turn to – innovations that will facilitate a “new normal” and keep people safe. And Hikvision will be there, every step of the way. For more details, click here.
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The term ‘marine’ comes from the Latin mare, meaning sea or ocean, and marine habitats can be divided into two categories: coastal and open ocean. Video surveillance (VS) applications can cover both types of marine environment with system for ships, maritime ports, onshore and offshore installations, etc. We should want to further analyze VS for ships and try to explain the types of ships on which it can be used, the ways in which VS can be used on ships, the typical certifications in use and what features a camera station must have to be installed on a ship. Starting with ships that have a minimum tonnage, around the world we have: liquefied natural gas (LNG) tankers, passengers ships, chemical tankers, crude oil tankers, container ships, general cargo ships and bulk carriers.As the LNG market grows rapidly, the fleet of LNG carriers continues to experience tremendous growth, offering more opportunities for VS Video surveillance for all marine vessels An LNG carrier is a tank ship designed for transporting liquefied natural gas. As the LNG market grows rapidly, the fleet of LNG carriers continues to experience tremendous growth. A passenger ship is a merchant ship whose primary function is to carry passengers by sea. This category does not include cargo vessels which have accommodation for a limited number of passengers, but rather includes the likes of ferries, yachts, ocean liners and cruise ships. A chemical tanker is a type of tank ship designed to transport chemicals in bulk. These ships can also carry other types of sensitive cargo which require a high standard of tank cleaning, such as palm oil, vegetable oils, tallow, caustic soda and methanol. An oil tanker, also known as a petroleum tanker, is a merchant ship designed for the bulk transport of oil. There are two basic types of oil tankers: crude tankers and product tankers. Crude tankers move large quantities of unrefined crude oil from its point of extraction to refineries. Product tankers, generally much smaller, are designed to move refined products from refineries to points near consuming markets. Container ships are cargo ships that carry their entire load in truck-size intermodal containers: a technique called containerization. They are a common means of commercial intermodal freight transport and now carry most seagoing non-bulk cargo. Today, about 90% of non-bulk cargo worldwide is transported by container. A cargo ship or freighter ship is any sort of ship or vessel that carries cargo, goods and materials from one port to another. Cargo ships are specially designed for the task, often being equipped with cranes and other mechanisms to load and unload, and come in all sizes. Bulk carriers make up 15%–17% of the world's merchant ships and they are specially designed to transport unpackaged bulk cargo such as grains, coal, ore and cement in its cargo holds. For all these ships the protection of vessels, cargo and crew is a priority, that’s why the adoption of VS technology plays a key part in terms of security and safety. Human error is regularly named as a major factor in ship accidents, and one way to avoid it is to aid seafarers by providing them with technology and equipment that is reliable and easy to use in all weather and sea conditions. Marine VS encompasses liquefied natural gas (LNG) tankers, passengers ships, chemical tankers, crude oil tankers, container ships, general cargo ships and bulk carriers Emergency security solutions on ship One of the most important applications for camera stations is during “docking”. Mooring is the securing or confining of a vessel in a particular location with a fixed or a floating object (jetty, pier, ship, barge, buoy, etc.) as various cargo operations are carried out. Docking is the final stage of mooring operations when the ship docks to the jetty. This is a very delicate operation and cameras are very helpful in making sure docking is done without accidents.'Man overboard’ is an emergency in which a person has fallen off a boat or ship into the water, and can happen at any time during the day or night Another important application for camera stations is the Man Overboard detection system (MOB). ‘Man overboard’ is an emergency in which a person has fallen off a boat or ship into the water. Man overboard events can happen at any time during the day or night, in all types of weather and sea conditions, and from almost any location on the ship, ranging from a few tens of feet above the water, to over 180 feet. When these events occur, the immediate availability of important data is crucial. Accurate confirmation of the event including time of occurrence, location on the ship and location in the sea is critical. A proactive detection system must immediately and accurately detect man overboard events and provide prompt, actionable data to response personnel. A typical man overboard detection system can report a MOB event in under 1 second. VS on a vessel can also monitor the engine room at all times and provide a good view of people working on dock, machinery and stowed equipment. But what are the most important features that a camera station must have to work in one of the most aggressive environments in nature? Ruggedized reliability in surveillance First of all, and perhaps it’s obvious, but it’s extremely important to have camera stations with amazing reliability. Housing units manufactured from AISI 316L stainless steel, passivated and electropolished, makes the cameras completely impervious to air, water, rusting and corrosion, therefore offering excellent weather protection and increased reliability.Housing units manufactured from AISI 316L stainless steel, passivated and electropolished, makes the cameras completely impervious to air, water, rusting and corrosion Sometimes ships also use cameras constructed entirely from technopolymer, which guarantees high impact resistance and superior protection from external weather agents. Keeping the camera glass clean at all times is another essential feature, and it can be done via a wiper/wash system that greatly reduces the need for maintenance. In the case of PTZ cameras, the best option would be a great pan and tilt speed (up to 100°/s). What is the operative temperature range for the cameras? Sea is everywhere and therefore ships go everywhere, from the Arctic Ocean to the Mediterranean, so we need cameras that have to be fully operational across a wide temperature range. -40°C to +65°C covers almost all areas. Analog or IP Cameras? Actually, both options can be used, especially for applications like docking where it’s important to avoid image delay (as can happen with IP cameras due to the natural latency of data communication over a network). Marine certifications Last but not least, the certifications: Certifications guarantee the quality and reliability of camera stations. There is no compromise! One important certification is the Lloyd’s Register Type Approval which subjects cameras to rigorous testing for performance, vibration (critical on ships), humidity, etc. The application field of the LR Type Approval is VS in public places (e.g. passenger ships), open decks, enclosed spaces that are subjected to heat generated from other equipment, and technical premises. Often, VS cameras used in specific areas of ships, such as hazardous areas, are required to have ATEX and IECEX certifications.
Standards for camera manufacturers presented a new challenge with the introduction of security cameras that require more than 30 Watts of power Standards for camera manufacturers presented a new challenge with the introduction of security cameras that require more than 30 Watts of power. Many of these involve pan-tilt-zoom (PTZ) domes and heaters and blowers that require additional power. This development created two areas of confusion which is highlighted in this article by Neil Heller - Vice President, Vigitron. The first is the ability to define what a 60-watt camera is and what power sources are actually required. The second and more serious is how to provide that power. Both share a commonality in that they lack any form of standardization. PoE To Power 60-Watt Security Camera Alone? Let’s start with the definition of the 60-watt camera. As the term suggests, it requires 60 watts or greater, but that doesn’t necessarily mean all the required power comes from a single PoE source. In many cases, camera manufacturers require that PoE only power the camera itself. Looking at these cameras’ power specifications will indicate a required PoE power of 802.3at or 30 watts, thus leaving power to the heaters and blowers requiring a local AC power source. This situation brings into question the value of PoE power if it is restricted to only providing camera power. Another group of PTZ cameras does use PoE for both camera and heater/blower functions, but only when the heater operates within a restricted temperature range. This usually means if your camera is installed in areas where the temperature that can fall below -20 degrees C (approximately -20 degrees F) you will still need a local power AC power source. The third type of security camera relies only on PoE power for both PTZ and heater blower operations. This is confusing, and is often the source of users finding their PTZ has failed at the most inopportune time. Any attempt to transmit 60 watt power over coax cable that is only a single pair should be considered with a great deal of caution, requesting from the transmission equipment provider that they will accept liability for any damages PoE For Greater Than 30 Watt Applications The three different operations of how these “PoE” cameras are powered brings into question the value of using PoE for greater than 802.3at, 30 Watt applications. Value exists in the ability to centrally control power operations from a single accessible point. Certainly those cameras that are solely dependent upon PoE have the greatest advantage. This brings to the second point of confusion, the composition of the PoE power. To review a brief history, 802.3af (15.4) was the first PoE standard used for IP cameras and is for the most part a standard. 802.3at (30 Watts) was introduced as four different standards, two of which, Type 1 and Type 2 are supposed be compatible, but in reality are not. Transmission Restriction Over Physical Cables 60 watts has no standards. To understand this, we need to look at the limitations of transmitting power over physical cables. Any form of transmission over a physical media has limitations in the form of resistance. As resistance increases, so does the heat generated by this process. The higher the power, the greater the resistance and resulting heat generated. Based on CAT5e cable, a single wire can handle about 0.75 amps. In PoE transmission, power is transmitted on a pair of wires or 0.75amp X 2= 1.5amps. According to the 802.3at specifications, Class 4 specifications generally are considered to start around 48 volts. So we take 48 x 0.75= 36 watts or 72 watts for the pair. Dual PD (Power Device) System So how do we get to 60 watts? For “over” 30 watts, camera manufacturers use a dual PD (power device) system. In short, it operates as if it where two IP cameras and requires use of all four pairs within Cat cabling. Exceeding these power limits can be dangerous in overheating the cable and its installation. Therefore, any attempt to transmit 60 watt power over coax cable that is only a single pair should be considered with a great deal of caution, requesting from the transmission equipment provider that they will accept liability for any damages. The need to operate two PDs within a single camera is where the incompatibility exists. There are no standards as to the sequence of turning on separate PDs in a single camera The need to operate two PDs within a single camera is where the incompatibility exists. There are no standards as to the sequence of turning on separate PDs in a single camera. Most such camera manufacturers provide their own PoE source in the form of a PSE or camera power supply; however, don’t try to interchange these power sources among different cameras from different manufacturers as they will not work. If you attempt to use a third party version, make certain you confirm that the power source manufacturer has actually conducted certification testing and can provide proof of compatibility or provide any operational limitations. Distance Of Transmission Finally, there is the question of transmission distance. This takes us back to the physics of high-powered PoE transmission. Even with manufacturer-supplied PSEs, the distance limitation is still 328 feet (100m), the Ethernet standard. Most applications such as perimeter and parking lots will be hard pressed to find a power outlet within 328 feet of where the cameras needs to be installed. This is where third-party transmission equipment providers come into play, but again the ability of transmitting 60 watts PoE power for distances greater than 328 is more complex that standard 802.3af and 802.3at, and more limited. This combined with the non-standard make a detailed knowledge and interaction with the manufacturer critical to a successful installation.
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