The power grid is a modern engineering marvel, providing us widely available and affordable energy for not only our day to day lives, but also highly critical infrastructure elements for which we rely on personally, and as an economy. However, our reliance on the grid also makes it highly susceptible to adverse events, including physical attacks. All parts of the grid can become victims of malicious events, but substations are particularly vulnerable due to their role in power distribution and the nature of their equipment.

Power utilities’ security

The challenge power utilities worldwide are facing is finding an affordable solution

The challenge power utilities worldwide are facing is finding an affordable solution, which can help detect, deter and facilitate an informed response to a substation security event. In the United States, this need is furthered by the physical security mandate CIP-014 issued by the North American Electric Reliability Corporation (NERC), calling for identification of security issues, vulnerability assessments and deployment of appropriate processes and systems to address.

CIP-104 specifically calls for implemented security plans which include measures to deter, detect, delay, assess, communicate, coordinate and respond to potential physical threats and vulnerabilities. Fortunately, there are many solutions to help power utilities address these security concerns, one effective choice is the use of intelligent video.

Intelligent video analytics solution

Intelligent video, or video analytics, is a popular choice for the protection of critical facilities given its ability to detect, provide instant visual confirmation of the event and subsequent event forensics. The capability of this technology is increasing at a rapid rate, while decreases in hardware cost make such solutions affordable for owners or operators of critical bulk-power system sites. This case study looks at the issue of substation vulnerability and how to best use video to address, keeping in mind requirements of CIP-014. Such a system consists of fixed cameras, pan-tilt-zoom (PTZ) cameras, a deterrence device and data communication capability.

Perimeter designs can vary based on the vulnerabilities identified, aspects of the site, budget, etc

Perimeter designs can vary based on the vulnerabilities identified, aspects of the site, budget, etc. In most cases, substations can benefit from a simple “camera-following” design, which includes surveillance of a potential breach at the fence line, as well as, the ability for early detection for some distance beyond the physical perimeter.

Camera-Following design

In a camera-following design, in addition to its own coverage, each camera is responsible for covering the blind spot of the adjacent camera. That camera is then responsible for covering the blind spot of the next camera, and this pairing continues around the perimeter until the final camera covers the blind spot of the first. This type of coverage design is very effective and affordable for locations with well-defined perimeters, such as substations.

Using this layout, the video feed from the fixed cameras are then enabled with video analytics algorithms to alert when predefined conditions are met. This is done by inputting the video signal into a server, edge device or NVR, located at the site, or remote to the location.

Intelligent video technology

Today’s intelligent video technology provides for very specific alarm criteria

Today’s intelligent video technology provides for very specific alarm criteria, which in addition to only alarming when a target enters in a specific region, can also discriminate, or classify, by the type of target: human, vehicle, etc. Furthermore, the alarm can be restricted by specific actions taken by the target, such as loitering in an area, dropping or throwing an object, more than one target entering with a valid badge swipe (tailgating) or even the speed at which a target is entering an area. This level of discrimination provides the ability to address very specific vulnerabilities, as well as, avoid nuisance targets, such as wildlife, debris or moving vegetation.

Another key feature with significant value to substation protection is the geospatial aspects available with some video analytic solutions. This capability maps each pixel of video to its real-world latitude, longitude and elevation. This results in further assessment of the target, including the actual location, the real size of the target, the real speed and the current track. It also affords the opportunity to provide a real-time display of this information to the security operator through an easy to understand map-based user interface.

Autonomous PTZ cameras

Geospatial video analytics provide the benefit of knowing the exact map-based location of the target

Another key assessment aspect of this substation protection scheme is the use of autonomous PTZ cameras. These are typically placed at the corners of the perimeter where they can service detections from multiple fixed cameras. As previously mentioned, geospatial video analytics, provide the benefit of knowing the exact map-based location of the target. Knowing the location of the target is extremely valuable to the security officer, but it is also the basis for a feature known as “slew to cue,” whereby PTZ cameras armed with video intelligence can be automatically steered to the same location for instant confirmation of the target.

In most cases, “slew to cue” functionality also includes an “intelligent zoom” feature, which uses the target size information from the alarm, the PTZ camera location and the target location to adjust the zoom level of the PTZ for an instant view of the target that can provide identification details (clothing color, car type, etc) without the need for the operator to further adjust the zoom.

Target detection and response

Once a target is detected, a security approach leveraging intelligent video can continue with a coordinated response 

Once a target is detected and confirmed, a security approach leveraging the use of intelligent video can continue with a coordinated response to the event. When video analytics is applied to pan-tilt-zoom cameras, it has the ability to automatically follow a defined target, freeing the operator to take other actions, such as coordinating with law enforcement officials. This feature, referred to as camera auto follow or PTZ following, can be automatically engaged as the result of a detection event, or subsequent to a slew to cue action.

The system will continue to follow the target until it reaches a pre-defined system time-out, the operator takes manual control, or the camera can no longer view the target. The system can then provide the resulting PTZ video as a component of the detection alarm, for a more complete understanding of the intrusion for the operator to review.

Effective deterrence

At this point, the system has detected the target, classified its type and verified it has met alarm conditions. As part of the alarm it has also included dynamic indication of its location on a map, autonomously steered a PTZ to the target to allow for gathering of more detailed target information and a PTZ has locked on and is now following the target without any required user interaction. Total elapsed time to this point in the security response is typically less than 5 seconds.

Deterrence is often realized as a fence, physical barriers or access controlled gates

This level of automated response addresses many vulnerabilities typically identified as part of a CIP-014 security assessment, but with minimal extra cost, it can be extended to help with the aspect of deterrence. Deterrence is often realized as a fence, physical barriers or access controlled gates. These are physical items and should certainly be included in a substation security plan.

Intrusion detection

However, another form of deterrence, which can be enabled through the use of intelligent video is the idea of audio talk down. This is the use of live or pre-recorded audio, which is activated upon an intrusion to deter the intruder. Different from a general alarm warning audio, audio talk down uses information about the location of the intruder and their actions to select appropriate pre-recorded audio to deter the intruder. Worse case, the understanding that they are being actively monitored may hasten their plan.

Video-Based security and alarm system

A common concern when deploying such a system is the amount of bandwidth required

A common concern when deploying such a system is the amount of bandwidth required. Substations are almost always unmanned, which means the intrusion information must have a means to get communicated back to the main monitoring location. From a design aspect, this is typically the case, but it is important to know that it is not a requirement in order to gain security benefits from a video based system. The system described in this case study has the capability to detect, assess, respond and deter without any communication back to a main command and control. Alarms, events and system actions can be logged and stored remotely for review at a later time.

In reality, utilities will want to be notified and react in real time. In these cases, video systems can adjust to the available bandwidth – from a low bandwidth situation where a textual alarm is provided with an image of the detection, to a high bandwidth installation where feeds from multiple cameras can be monitored and controlled in real time.

Web-Based, mobile access

In each case, complete alarm information, including meta data, images and video can be readily available to the security operations center, which can then take action based on their security response plan, including contacting and coordinating this alarm data with local law enforcement through web-based access or mobile phones. This case study outlines the effectiveness of utilising video analytics to address the physical vulnerabilities of a typical substation.

The study outlines how recent technological advances can autonomously address assessment, response and deterrence

This case study outlines the effectiveness of utilizing video analytics to address the physical vulnerabilities of a typical substation. Further, the study outlines how recent technological advances allow such a solution to extend beyond the mere detection of events, but can also autonomously address assessment, response and deterrence.

Key capabilities Of intelligent video include:

  • Advanced Detection – Accurate alarming based on specific targets types and actions
  • Situational Awareness – The ability to quickly convey the critical details of a security event in an easy to understand map-based format.
  • Real-time Target Location – Real-time location information of events and real-time location tracking of potential intruders.
  • Autonomous Sensor Control – Automated steering of cameras to an event location and subsequent hands free video tracking of a suspect.

Although each utility and substation may encounter different vulnerabilities, this case study outlines how video can be considered to address NERC guidelines for protecting critical substation assets by providing situational awareness of a potential threat and initiating an appropriate and timely response.

Share with LinkedIn Share with Twitter Share with Facebook Share with Facebook
Download PDF version

In case you missed it

What Do You Need To Know About Thermal Imaging Cameras?
What Do You Need To Know About Thermal Imaging Cameras?

As businesses, schools, hospitals and sporting venues look to safely reopen in a COVID-19 world, thermal imaging systems will play a critical role in helping to detect and distinguish skin temperature variations in people. Thermal surveillance, a mainstay of traditional physical security and outdoor perimeter detection, is now being deployed to quickly scan employees, contractors and visitors as part of a first line of defense to detect COVID-19 symptoms. In the coming weeks and months, the security industry will look to implement thermal camera solutions for customers, yet many questions remain as to the differences between different system types and how to properly install thermal imaging cameras. In this Q&A, Jason Ouellette, Head of Technology Business Development for Johnson Controls, answers several of these questions. Q: What are some of the different thermal imaging solutions available in the market to detect an elevated temperature in a person? For the general market, there are three types of these thermographic screenings. There is the handheld device, which is typically lower cost, very portable, and very easy to use. Typically, this is a point and shoot type of device, but it requires you to be three feet or less from the person that you're screening, which, in today's world, means the user needs to wear protective personal equipment. For the general market, there are three types of these thermographic screenings The second type of solution would best be described as a thermal camera and kiosk. The advantage of this system over a handheld device is this can be self-service. An individual would go up to and engage with the kiosk on their own. But many of these kiosk type solutions have some integration capability, so they can provide some type of output, for either turnstiles, or physical access control, but not video management systems (VMS). Some of the downside of this type of system is that it’s less accurate than a thermographic solution because it does not have a blackbody temperature calibration device and the readings are influenced by the surrounding ambient temperature, called thermal drift. So instead of being able to achieve a ±0.3ºC accuracy rating, this system probably provides closer to ±0.5ºC at best. Some of these devices may be classed as a clinical thermometer with a higher degree of one time accuracy, but do not offer the speed and endurance of the thermographic solution for adjunctive use. And then there are thermal imaging camera systems with a blackbody temperature calibration device. These types of systems include a dual sensor camera, that has a visual sensor and a thermal sensor built right into the camera, along with a separate blackbody device. This provides the highest degree of ongoing accuracy, because of the blackbody and its ability to provide continuous calibration. These systems can provide much more flexibility and can offer integrations with multiple VMS platforms and access control devices. Q: When installing a thermal imaging camera system what is the most important element to consider? Camera placement is critical to ensure the system works as expected, however the placement of the blackbody device which verifies the correct calibration is in place is equally as important. If the customer wants to follow FDA medical device recommendations for camera placement, both the height of the camera and the blackbody as well as the distance between these devices should comply with the product installation instructions. This takes into account the device focal range and calibration parameters in addressing the distance from the person undergoing the scan. Also, integrators should minimize camera detection angles to ensure optimal accuracy and install cameras parallel with the face as much as possible, and again in compliance with installation instructions. Integrators should minimize camera detection angles to ensure optimal accuracy The blackbody should be placed outside of the area where people could block the device and located more towards the edges of the field-of-view of the camera. You need to keep in mind the minimum resolution for effective thermographic readings which is 320 by 240 pixels as defined by the standards. To achieve this, you would need to follow medical electrical equipment performance standards driven by IEC 80601-2-59:2017 for human temperature scanning and FDA guidelines. Within that measurement, the face needs to fill 240 x 180 pixels of the thermal sensor resolution, which is close to or just over 50 percent of the sensor’s viewing area typically, meaning a single person scanned at a time in compliance with the standards for accuracy.  Along with height and distance placement considerations, the actual placement in terms of the location of the system is key. For example, an expansive glass entryway may impact accuracy due to sunlight exposure. Installations should be focused on ensuring that they are away from airflow, heating and cooling sources, located approximately 16 feet from entry ways and in as consistent of an ambient temperature as possible between 50°F and 95°F. Q: Once a thermal imaging camera system is installed, how do you monitor the device? There are several choices for system monitoring, depending on whether the solution is used as standalone or integrated with other technologies, such as intrusion detection, access control or video systems. For standalone systems, the ability to receive system alerts is typically configured through the camera’s webpage interface, and the cameras include abilities such as the live web page, LED display for alerting, audio alerts and physical relay outputs. When done right, these features will all follow cybersecurity best practices which is important for any network solution today, including changing default passwords and establishing authentication methods. The ability to receive system alerts is typically configured through the camera’s webpage interface These types of thermal cameras can also integrate with turnstile systems, VMS platforms and access control systems. This is typically done through the integration of a relay output, activated by a triggered temperature anomaly event on a thermal imaging camera which can then be used for activities such as locking a turnstile, or through access control and video systems to send an email or provide an automated contagion report for contact tracing. These capabilities and integrations extend the monitoring capability above that of the standalone solution. The camera can be configured to monitor a specific range of low and high alerts. Users can determine the actions that should be taken when that alert exceeds the preset low or high threshold. These actions include things like a bright and easy-to-see LED can provide visual notification through pulsing and flashing lights as an example. Q: What about system maintenance? Does a thermal imaging camera require regular service in order to operate accurately? First it’s important to make sure the system is calibrated. This can be done after the unit stabilises for at least 30 minutes to establish the initial reference temperature source known as the blackbody. Calibrations conducted before this warm up and stability time period can throw off accuracy. Also, as part of your system maintenance schedule you will want to perform a calibration check of the blackbody device every 12 months, along with following recommendations of the FDA and IEC. If you install the solution and don’t perform maintenance and the blackbody calibration certificate expires, over time there’s a risk that the device will experience drift and a less accurate reading will result. There’s a risk that the device will experience drift and a less accurate reading will result Q: What final pieces of advice do you have for either an integrator who plans to install a thermal imaging camera system or an end user who plans to invest in this solution? Before you buy a thermal imaging camera check to see if the manufacturer ships the camera with a calibration certificate. Also, become familiar with FDA’s guidance released in April 2020, Enforcement Policy for Telethermographic Systems During the Coronavirus Disease 2019 (COVID-19) Public Health Emergency. This document places thermal/fever products for adjunctive use under the category of a Class I medical devices and subject to its regulatory control. Driven by these regulations and categorisation, users need to understand specifically what is required to meet the required level of accuracy for successful detection. While thermal imaging camera systems are more complex than traditional surveillance cameras, they can prove to be a valuable resource when set up, configured and maintained properly.

Functionality Beyond Security: The Advent of Open Platform Cameras
Functionality Beyond Security: The Advent of Open Platform Cameras

The coronavirus (COVID-19) pandemic marks the biggest global disruption since World War II. While the ‘new normal’ after the crisis is still taking shape, consumers are apprehensive about the future. According to a recent survey, 60% of shoppers are afraid of going grocery shopping, with 73% making fewer trips to physical stores. Returning to the workplace is also causing unease, as 66% of employees report feeling uncomfortable about returning to work after COVID-19.  Businesses and employers are doing their best to alleviate these fears and create safe environments in and around their buildings. This also comes at tremendous costs for new safety measures and technologies – including updates to sanitation protocols and interior architecture – that protect against COVID-19. Costs in the billions that most businesses will face alone, without support from insurance and amidst larger, macroeconomic challenges. Saving costs and increasing security But what if building operators, retail shop owners, and other stakeholders could save costs by leveraging new functionality from their existing security infrastructure? More specifically, expanding the use of current-generation security cameras – equipped with AI-driven image analysis capabilities – beyond the realm of security and into meeting new health regulations. This is exactly where video analytics algorithms come into play. And in the next step, a new evolutionary approach towards open security camera platforms promises new opportunities. Security cameras have evolved from mere image capturing devices into complex data sensors Over the past decade, security cameras have evolved from mere image capturing devices into complex data sensors. They provide valuable data that can be analyzed and used in beneficial ways that are becoming the norm. Since 2016, Bosch has offered built-in Video Analytics as standard on all its IP cameras. On one hand, this enables automated detection of security threats more reliably than human operators. And on the other hand, video analytics collect rich metadata to help businesses improve safety, increase efficiency, reduce costs, and create new value beyond security. Expanding Camera Functionality Beyond Security Today, we have ‘smart’ security cameras with built-in video analytics to automatically warn operators of intruders, suspicious objects and dangerous behaviors. The rich metadata from several cameras on the same network can also be consolidated by making use of an intelligent software solution. It offers so-called pre-defined widgets to provide business intelligence by measuring area fill levels, counting building occupancy and detecting the formation of crowds. In combination with live video stream data, these insights enable heightened situational awareness to security operators. What’s more, operators are free to set their own parameters – like maximum number of occupants in a space and ‘off limit’ areas – to suit their needs. These user-centric widgets also come in handy in dealing with the coronavirus pandemic. Specific widgets can trigger an alarm, public announcement or trigger a 'traffic light' when the maximum number of people in a space is exceeded. Building operators can also use available intelligence such as foot traffic ‘heat maps’ to identify problem areas that tend to become congested and place hand sanitizer stations at heavily frequented hotspots. At the same time, the option to perform remote maintenance on these systems limits the exposure of technicians in the field during the pandemic. Again, the underlying camera hardware and software already exist. Cameras will be able to ‘learn’ future functionality to curb the spread of the coronavirus Looking ahead, cameras with video analytic and neural network-based analytic capabilities will be able to ‘learn’ future functionality to curb the spread of the coronavirus. For instance, cameras could monitor distances between individuals and trigger voice announcements when social distancing guidelines are violated. Facial recognition software can be trained to monitor personal protective equipment (PPE) compliance and sound alerts for persons entering buildings without masks. The technical requirements are already in place. The task at hand is to deliver these new functionalities to cameras at scale, which is where open camera platforms hold the key. Why Open Camera Operating Systems? When it comes to innovating future camera applications that extend beyond security, no hardware manufacturer should go at it alone. Instead, an open platform approach provides the environment for third-party developers to innovate and market new functions. In essence, an open platform principle allows customers and users to change the behavior of devices by adding software afterwards. This software can either be found in an app store or can be self-developed. For a precedent, we can look at the mobile phone industry. This is where software ecosystems like Android and Apple’s iOS have become the norm. They have also become major marketplaces, with the Apple App Store generating $519 billion in billings on 2019, as users use their phones for far more than just making phone calls. In the same way, intelligent cameras will be used far beyond classic video applications in the future. To get there, adopting an open platform principle is essential for a genuine transformation on an industry level. But establishing an open platform principle in the fragmented video security industry demands a cooperative approach. In 2018 Bosch started a fully owned start-up company, Security & Safety Things, and became one of five founding members of OSSA (Open Security & Safety Alliance). With more than 40 members, the Alliance has collectively created the first Technology Stack for “open” video security devices. This includes the OSSA Application Interface Specification and Compliant Device Definition Specification. An open camera platform for innovating future functionality  Based on OSSA’s common APIs, collective approach on data security and core system requirements for video security cameras, the first camera manufacturers were able to build video security cameras that adopt an open platform principle. Further fueling innovation, OSSA focused on driving the creation of one centralized marketplace to unite demand and supply in the market. Camera devices that are built in accordance with OSSA’s Technology Stack, so-called “Driven by OSSA” devices, can benefit from this marketplace which consists of three pillars: a development environment, an application store, and a device management portal. Security & Safety Things has advanced OSSA’s open camera platform concept, built this marketplace for the security and safety industry and has developed the open OS that powers the first “Driven by OSSA” devices. Making it quick and simple to customize security solutions by installing and executing multiple apps This year, Bosch, as one of the first camera manufacturers, introduces the new INTEOX generation of open platform cameras. To innovate a future beyond security functionality, INTEOX combines built-in Intelligent Video Analytics from Bosch, an open Operating System (OS), and the ability to securely add software apps as needed. Thanks to the fully open principle, system integrators are free to add apps available in the application store, making it quick and simple to customize security solutions by installing and executing multiple apps on the INTEOX platform. In turn, app developers can now focus on leveraging the intelligence and valuable data collected by analytics-equipped cameras for their own software developments to introduce new exciting possibilities of applying cameras. These possibilities are needed as smart buildings and IoT-connected technology platforms continue to evolve. And they will provide new answers to dealing with COVID-19. The aforementioned detection of face masks and PPE via facial detection algorithms is just one of manifold scenarios in which new apps could provide valuable functionality. Contact tracing is another field where a combination of access control and video analytics with rich metadata can make all the difference. Overall, open camera platforms open a future where new, complex functionality that can save lives, ensure business continuity and open new business opportunities will arrive via something as simple as a software update. And this is just the beginning.

Recognizing The Importance Of Security Officers To Promote Safety
Recognizing The Importance Of Security Officers To Promote Safety

The general public doesn’t give much thought to the important role of security officers in creating and promoting safer environments. The low-profile work of security officers is vital to protecting people, places and property. During the pandemic, newer aspects to that role have emerged. Security personnel have been called on to perform diverse tasks such as managing queues at the supermarket, safeguarding testing centers and hospitals, ensuring food deliveries, and supporting police patrols. The British Security Industry Association (BSIA) and two other organizations in the United Kingdom are joining forces to raise awareness of the work of security officers and to recognize the vital importance of the duties they perform. BSIA, a trade association, includes members who are responsible for 70% of privately provided UK security products and services, including security guarding, consultancy services, and distribution and installation of electronic and physical security equipment. BSIA, the Security Institute and the Security Commonwealth Joining BSIA in the awareness campaign are the Security Institute, a professional security membership body; and the Security Commonwealth, which is comprised of 40 organizations from across the security landscape with common objectives to build professionalism, raise standards and share best practices. “The recognition of security officers as key workers is the start of a re-appraisal of what service they provide to the community in keeping the public safe and secure,” says Mike Reddington, BSIA Chief Executive. “As we exit lockdown and have to navigate public spaces again, [security officers] will have a crucial role in supporting public confidence. We are working closely with the Police and all other public bodies to find the best way to achieve this.” Security officers acknowledged as key workers The campaign will showcase security professionals as a respected, valued, professional service provider and a key worker that is acknowledged and embedded in daily lives. The British Security Industry Association (BSIA) and two other organizations in the United Kingdom are joining forces to raise awareness of the work of security officers “Great effort has been invested in the professional standards and capabilities of frontline [security] officers, and they have proven their worth during the coronavirus crisis in the UK,” says Rick Mounfield, Chief Executive, the Security Institute. “They, along with the wider security sector, deserve to be recognized, respected and appreciated for the safety and security they provide across the United Kingdom.” “[We are working to] build professionalism, raise standards and share best practices, and I hope this campaign can make more people recognize the changes we have all made and continue to make,” says Guy Matthias, Chairman of the Security Commonwealth (SyCom). The industry will be reaching out to companies, professionals, and organizations in the sector to participate in the campaign. The hope is that, over the coming weeks as lockdown is eased, the industry can play its part to ensure that the country emerges with confidence to start to recover and build for the future. Private security more important than ever The campaign will showcase security professionals as a respected, valued, professional service provider Across the pond in the United States, law enforcement professionals are facing a crisis of confidence during a time of civil unrest as protestors call to “defund the police” and to otherwise undermine and/or recast law enforcement’s role in preserving the peace and ensuring public safety. If an upshot is that public policing is starved of resources, the role of private security to supplement their mission is likely to increase. In short, the role of private security is more important than ever on both sides of the Atlantic. Public recognition of that role is welcome, obviously. In any case, the importance of their role protecting people, places and property has never been greater.