https://openradar.com.br/blog/en/index.html Vehicle speed on the internal roads of gated communities, auditable video evidence and the engineering of AI monitoring. Every claim carries its own source. Translated from Brazilian Portuguese; the original is at /blog/index.html. en JVB Consultoria em Tecnologia da Informação LTDA contato@openradar.com.br (Juliano Baladão) contato@openradar.com.br (Juliano Baladão) Fri, 04 Sep 2026 09:00:00 -0300 Fri, 04 Sep 2026 09:00:00 -0300 Static file maintained by hand https://www.rssboard.org/rss-specification https://openradar.com.br/og.png https://openradar.com.br/blog/en/index.html 144 76 https://openradar.com.br/blog/en/how-to-slow-down-cars-in-gated-community.html https://openradar.com.br/blog/en/how-to-slow-down-cars-in-gated-community.html Fri, 04 Sep 2026 09:00:00 -0300 Community Juliano Baladão Five routes to lower vehicle speed on a community's internal road: geometry, posted limit, warnings, measurement and culture. What works and what only pushes the problem to the next corner. https://openradar.com.br/blog/en/pixel-density-dori-cameras.html https://openradar.com.br/blog/en/pixel-density-dori-cameras.html Fri, 04 Sep 2026 09:00:00 -0300 Engineering Juliano Baladão Detect, observe, recognize and identify each carry a numeric pixels-per-meter requirement in IEC 62676-4:2014. Where 25, 63, 125 and 250 px/m come from, and how to measure density in the real scene. https://openradar.com.br/blog/en/can-a-community-fine-residents-for-speeding.html https://openradar.com.br/blog/en/can-a-community-fine-residents-for-speeding.html Fri, 04 Sep 2026 09:00:00 -0300 Community Juliano Baladão Brazilian law. What a traffic penalty under the CTB reaches on an internal road, what depends on the bylaws and house rules, and why due process and the right to a defense decide the outcome. https://openradar.com.br/blog/en/why-speed-bumps-do-not-solve-speeding.html https://openradar.com.br/blog/en/why-speed-bumps-do-not-solve-speeding.html Fri, 04 Sep 2026 09:00:00 -0300 Community Juliano Baladão A speed bump acts at one point on the road, not along the route. The local effect is real, the average effect is much smaller — and that gap is what residents read as "nothing changed". https://openradar.com.br/blog/en/documenting-an-internal-violation-that-holds-up.html https://openradar.com.br/blog/en/documenting-an-internal-violation-that-holds-up.html Fri, 04 Sep 2026 09:00:00 -0300 Community Juliano Baladão Brazilian law. What has to be inside a record for it to survive a challenge: the moment, the place, the identification of the vehicle, the method and the integrity of the file. https://openradar.com.br/blog/en/speed-radar-buy-rent-or-use-existing-cameras.html https://openradar.com.br/blog/en/speed-radar-buy-rent-or-use-existing-cameras.html Fri, 04 Sep 2026 09:00:00 -0300 Community Juliano Baladão An honest comparison of the three routes, with the limits of each. No prices and no promised results: only what changes in construction, maintenance and the evidence produced. https://openradar.com.br/blog/en/false-positives-in-ai-video-surveillance.html https://openradar.com.br/blog/en/false-positives-in-ai-video-surveillance.html Fri, 04 Sep 2026 09:00:00 -0300 Engineering Juliano Baladão Moving shadow, headlights and reflections, rain and fog, vegetation in the wind, insects in the infrared and secondary-stream compression: why each one fools the model. https://openradar.com.br/blog/en/measuring-speed-from-video-physical-limits.html https://openradar.com.br/blog/en/measuring-speed-from-video-physical-limits.html Fri, 04 Sep 2026 09:00:00 -0300 Engineering Juliano Baladão Two instants and a distance. Where the error enters: frame quantization, perspective, calibration — and why the result is an average over the gap, not instantaneous speed. https://openradar.com.br/blog/en/video-evidence-chain-of-integrity.html https://openradar.com.br/blog/en/video-evidence-chain-of-integrity.html Fri, 04 Sep 2026 09:00:00 -0300 Engineering Juliano Baladão What a hash proves, what it does not prove, and why verification has to be something a person who does not trust you can carry out alone. https://openradar.com.br/blog/en/brazil-lgpd-ai-video-surveillance.html https://openradar.com.br/blog/en/brazil-lgpd-ai-video-surveillance.html Fri, 04 Sep 2026 09:00:00 -0300 Engineering Juliano Baladão Brazilian law. Controller and processor, legitimate interest as a legal basis, retention, impact assessment — and the concrete legal risk of facial recognition in Brazil.