![]() ![]() In neighboring Oregon, the state’s Public Utility Commission is working with regulated utilities to increase vigilance and explore possible security updates, after gunfire attacks damaged two substations southeast of Portland in late November. “‘Security by design’ is a core component of these systems,” he said. Physical and cybersecurity updates are in the works as the electrical grid undergoes significant changes to meet new standards, Furze said. Washington is already revamping its electrical infrastructure under the Clean Energy Transformation Act, which commits the state to an electricity supply free of greenhouse gas emissions by 2045. Michael Furze, director of the Washington State Energy Office, said that although no legislation specifically addressing substation security has been introduced, broader bipartisan discussions are underway about grid resilience. The Pacific Northwest has become a hotspot for these physical attacks, with Washington and Oregon utilities reporting at least 15 incidents in 2022, including 10 in the last two months of the year.Īttackers hit four Washington substations on Christmas Day, forcing entry, setting fire to equipment and temporarily cutting power to thousands of customers. A subcommittee plans to review the bill further in a few weeks. Kissam agreed but said sometimes that damage isn’t an accident, as hunters use equipment to set their gun sights or as target practice. Some state senators worried that the law could be used against hunters who accidentally damage utility equipment. “You want to demoralize people, you put them in the dark,” he said. ![]() ![]() Utilities in South Carolina - where gunshots were fired near a Duke Energy facility but caused no damage days after the North Carolina shootings - are asking lawmakers to increase penalties for intentionally destroying electrical infrastructure or other utility property.Ī state Senate proposal would set a sliding scale based on how much damage is done - if it costs more than $25,000 to fix equipment and cover losses, the perpetrator could face up to 20 years in prison, double the current 10-year maximum.Ī maximum 25-year penalty would apply if anyone died or their health was endangered by a resulting outage.ĭominion Energy South Carolina President Keller Kissam said the state saw at least 12 incidents of people intentionally damaging equipment last year. The North American Electric Reliability Corporation (NERC), which oversees the nation’s bulk power system, has until early April to submit a report and recommend possible improvements. ![]() The FBI is still seeking information and no arrests have been made.įederal regulators in December ordered a review of physical security standards across the nation’s vast electricity transmission network following the attacks in North Carolina. His call for increased surveillance comes as questions linger about the Moore County shootings. He considers the bill “a conversation opener” between lawmakers, utilities and security experts to help the General Assembly identify cost-effective defenses that wouldn’t drive up consumer prices. Security provisions would vary across sites, some of which are already gated with nearby cameras while others are more exposed. Moss is drafting legislation, obtained in its preliminary form by The Associated Press, that would require utilities to provide 24-hour security at substations, which transform high-voltage electricity into the lower voltages that power communities. The recent attacks in Moore County, North Carolina, and others in Washington, Oregon, South Carolina and Nevada, have underscored the vulnerability of the nation’s far-flung electrical grid, which security experts have long warned could be a target for domestic extremists. substations, primarily in the Carolinas and Pacific Northwest. He’s among the first state legislators to propose power grid protections this year amid a surge in attacks on U.S. Ben Moss watched his vibrant district full of family farms, small businesses and sprawling golf courses become “a ghost town.”Īfter the latest attack last week on a substation in Randolph County, northeast of Charlotte, Moss is urging fellow lawmakers to prioritize new legislation that would secure the state’s critical infrastructure when the legislative session begins in earnest this week. (AP) - When gunshots at two electrical substations cut power to thousands of central North Carolina homes for several days in early December, Republican state Rep. ![]()
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![]() ![]() _, thresh = cv2.threshold(gray, 120, 255, cv2.THRESH_BINARY_INV + cv2.THRESH_OTSU)ģ. Gray = cv2.cvtColor(image, cv2.COLOR_BGR2GRAY) We can take advantage on the fact that barcodes are generally black on white surfaces. Image = cv2.resize(image, (width, height)) You can skip this step as it might seem completely arbitrary. Although I don't have references that can back this claim, I still use small to medium images for barcode detection as a rule of thumb. After some experimentation I have come to the conclusion that pyzbar is not completely scale invariant. Also, we have to keep in mind that neither pyzbar nor opencv.QRCodeDetector are 100% reliable. However, my approach assumes there is some contrast (the more the better) between the QR and its surrounding area. I think I have found a simple yet reliable way in which the corners of the QR code can be detected. It's purposely poor lighting quality to approximate the worst case scenario, however the individual codes still detect and decode correctly when cropped. Here is one of the sample images that I'm using for testing. I am interested in any solutions to improve the detection/decoding performance, but prefer ones that (a) use machine learning techniques (I'm a ML newbie but willing to learn), (b) use OpenCV image pre-processing or (c) make improvements to my basic cropping algorithm. How can I find the approximate location of the QR code(s) so I can crop the image accordingly? The sliding window may catch a symbol more than once, making it difficult to determine if the symbol was present more than once.Problems that may affect other projects where I would use this approach: the symbol size may vary due to being closer/further from the camera.the most reliable window sizes tend to be small and require many iterations,.it causes the entire area to be analyzed nearly 4 times a side effect of shifting the window by 50%,.The sliding window approach is difficult to tune, inefficient and slow b/c: Problems which affect my current project: I have also tried using OpenCV for detection/decoding but the performance was no better than with pyzbar Problems With My Solution I move the window by 50% each iteration to ensure I don't miss any symbols at the edge of the window. I have written a loop that slides a crop window over the image, and attempts to decode each cropped frame separately. If I attempt to decode the full image, the symbol is not detected/decoded. We are using high quality industrial cameras and lenses, so images are generally good quality and in focus.Ĭurrently, I am able to detect and decode the image reliably with pyzbar when I crop the image around the QR code using a window of aprox 600x500. ![]() The QR code can be at any location in the frame, but the orientation is expected to be normal, i.e. I need to detect and decode a relatively small QR code (110x110 pixels) in a large image (2500x2000) on a Raspberry Pi. ![]() ![]() These points are used to upgrade and unlock more items. With routine and quality work, you can get experience points. In this game, you can customize everything by working hard. Events can occur every day with challenges and you can earn more points and coins from them. The game provides countless customizable characters like (Angus, Alfred, Ernest, Maggie, Rose, and Tom) to choose from. 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That lets the processor execute much more quickly and efficiently while giving you increased control over hardware aspects like CPU usage. When you program with compiled languages like Java, the coding gets directly converted to machine code. Unlike Python, Java is a compiled language, which is one of the reasons that it’s your faster option. It's a general-purpose, object-oriented language. Since its release, it has become one of the most popular languages among web developers and other coding professionals. Java is a programming language and platform that's been around since 1995. Several factors are driving Java's continued popularity, primarily its platform independence and its relative ease to learn. It's also the third-most in-demand programming language that hiring managers look for when hiring candidates, according to HackerRank. According to Stack Overflow, this general-use, compiled language is the sixth most commonly used programming language. 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A cinematic launch trailer for the game was released on Tuesday, featuring the arrival of the mysterious Court of Owls in Gotham after Batman’s death. Gotham Knights’s release date was moved up to October 21 from October 25 back in August. As announced during the show, Gotham Knights will be released a few days earlier, coming out on October 21 instead of the previously announced release date of October 25. Gotham Knights is an upcoming DC Universe role-playing game that loosely adapts the Batman: Gotham Knights comic book series. The game follows Nightwing, Batgirl, Robin, and Red Hood as they take on the responsibility of protecting Gotham following Batman’s death. Gotham Knights was once set to release in the first half of 2022, but its been officially dated for October 25, making it likely to be one of the biggest games of. It centers on members of the Batman family and other DC Comics supporting characters. ![]() Related Reading: Gotham Knights: Players Won’t See Everything in a Single Playthrough Due to Each Hero’s Perspective ( present) Gotham Knights is an American superhero television series developed by Natalie Abrams, Chad Fiveash, and James Stoteraux for The CW. ![]() The launch version is numbered 1.002.000. Ahead of its October 21 release date, Gotham Knights‘ PS5 download size and pre-load date have been revealed.įans will have to clear up 41.030 GB by October 19 to pre-load the upcoming DC Universe role-playing game. ![]() ![]() ![]() And that’s the only acronym you need to know in the world of Cable Internet. ![]() Since the service in question is cable TV, we have the Cable modem.Ĭable modems use a standard DOCSIS to carry data signals, an acronym for data over cable service interface specifications. It converts service signals into computer data signals and vice versa. What is a modem?Ī modem is a device that works as a modulator and a demodulator. Since the coaxial Cable was initially made for TV signals, there needs to be a modem to make it work for the Internet, which is data signals - similar to the case of DSL that uses the telephone line. Cable InternetĪs the name suggests, Cable Internet is the broadband connection via the coaxial copper wires used originally for Television or Cable TV. Most DSL providers have been slowly moving to Fiber as the replacement.īut in a way, as far as the Internet net is concerned, DSL is similar to Cable. Short for digital subscriber line, DSL uses the existing phone line - that same wire we once used for the good old Dial-up connection - to deliver modest broadband connections.ĭSL has declined significantly due to slow speeds and unreliability in recent years. Your real-world Internet (download) speedsīefore continuing, though, let’s address the elephant in the room: your beloved DSL.Tips on getting a Cable modem: Which DOCSIS version to use?.DOCSIS 4.0: The future of Cable as a real alternative to Fiber-optic.DOCSIS 3.1: Multi-Gigabit-capable on top of top-tier DOCSIS 3.0.Cable modem (further) explained: DOCSIS 3.0 vs DOCSIS 3.1 vs DOCSIS 4.0.Fiber vs Cable Internet: The future is in the former.The curious case of Cable Internet’s fast download vs slow upload speeds.Fiber vs Cable Internet, or ONT vs modem.In this particular setup, you need two routers or one that supports Dual-WAN. Each delivers the Internet to a single wired device, which, in most cases, is a Wi-Fi router. The Cable modem (top) is connected to a coaxial line, and the ONT is live with Fiber-optic signals. Best Cable modems: For Comcast Xfinity (and possibly other ISPs)įiber vs Cable Internet: Pictured here are a Cable Modem (top) and a Fiber-optic ONT in action.Broadband: Fiber-optic ONT vs Cable modem (DOCSIS 3.0 vs 3.1) | How to activate a Cable modem | Broadband troubleshooting | Tips on 10Gbps Internet. ![]() Best Wi-Fi routers: Wi-Fi 6E | Wi-Fi 6 | Wi-Fi 5.Wi-Fi routers explained: How to pick that perfect one.Best mesh Wi-Fi systems: Wi-Fi 6E | Wi-Fi 6 | Wi-Fi 5.How to best use multiple Wi-Fi broadcasters: Wi-Fi mesh systems explained | Tips on getting extenders | Access point buying guide.Wi-Fi hardware: Dual-band vs Tri-band vs Quad-band | Airtime fairness and IoT devices | Common home Wi-Fi settings.Wi-Fi standards: Wi-Fi 7 | Wi-Fi 6E | 5.9GHz Wi-Fi 6 (a.k.a UNII-4) | Wi-Fi 6 | What is Wi-Fi? | Wi-Fi antennas (dBi) | W-Fi broadcasting/signal power (dBm).Replacement: The right time to get a new Wi-Fi router.Everything you need to know: The basics (modems, routers, switches, etc.) | Router setup and maintenance | Tips on running network cables | Wi-Fi troubleshooting | Wi-Fi/Internet speed testing | Multi-Gig explained | Dual-WAN vs Link Aggregation | Your router and online privacy risks. ![]() On home networking, Wi-Fi, and the Internet I wrote this based on my experience as someone who moved to 10Gbps Fiber-optic after years of using Cable and kept both in a Dual-WAN setup.ĭong’s note: I first published this piece on December 28, 2021, and updated it on March 21, 2023, to add relevant, up-to-date information, including DOCSIS 4.0. This is also the case for any gateway unit. For example, certain modems work with Comcast Xfinity while others might not. That’s true as long as the two can connect via a network cable, which is almost always the case.Ĭompatibility is applicable only between a terminal device and the ISP. (If you run into that type of information somewhere on the Interweb, it’s likely nonsense.)Īny standard router, including the primary unit of a mesh Wi-Fi system, will work, at its full potential, with any Internet broadband terminal device - modem, Fiber-optic ONT, or others. There’s no such thing as “compatible” or “best” routers for a particular Internet service provider - Fiber-optic, Cable, or what’s not. ![]() ![]() ![]() Solebon Solitaire - 50 Games CasinoCardiosEntertainment. This is the premium solitaire suite for Solitaire players. Duck Life Lite SportsEntertainmentiosAdventure Android, Crazy Hats. 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