Grid-Powered Red Light Running and Speed Enforcement Camera System (RC-RLS-400)

Overview

The REDCOAST.LTD RC-RLS-400 Grid-Powered Red Light Running and Speed Enforcement Camera System is an end-to-end intersection enforcement solution engineered for urban arterials, school zones, accident black-spots, and any signalized intersection where running a red light or excessive speed causes serious safety incidents. A single cabinet simultaneously captures, classifies, and produces court-admissible evidence of red-light violations and over-speed events across up to six lanes. It fuses high-resolution machine-vision imaging, type-approval-grade tracking radar, on-device ANPR, and a hardware signal-phase interface into one mains-powered, UPS-backed roadside unit — built end-to-end by REDCOAST.LTD on self-developed PCBs, customized to each project's lane geometry, plate formats, and back-office workflows.

Key Features

• Combined enforcement in one box: Red light running (RLR), stop-line crossing, over-speed, bus-lane infringement, and illegal turning — captured by a single cabinet, no need to deploy multiple stand-alone systems on the same pole.
• Multi-lane, multi-direction coverage: Configurations for 2, 3, 4 or 6 lanes per approach, or two approaches with one gantry-mounted cabinet.
• Type-approval-class metrology: Tracking Doppler radar (24 GHz or 77 GHz) with ±2 km/h accuracy traceable to OIML R-91 / R-115 — evidence holds up in court and survives metrology re-verification.
• High-resolution evidence imaging: 4K / 8 MP global-shutter machine-vision sensor for plate, scene, and driver-side context, paired with a high-output infrared illuminator for 24/7 capture without intrusive visible flash.
• Edge ANPR and AI vehicle classification: REDCOAST.LTD's on-device ANPR engine recognizes EU/UK, GCC/Arabic, LATAM, and ASEAN plate formats at ≥98% read rate; vehicle classification across 7 classes (car, van, light truck, heavy truck, bus, motorcycle, taxi).
• Tamper-evident, signed evidence packets: Each violation is bundled into a digitally signed JSON + JPEG/MP4 packet, hashed with a hardware secure element and time-stamped from a GNSS-disciplined clock — no chain-of-custody disputes.
• Hardware signal-phase tap: Reads red-amber-green phase directly from NEMA TS-2, EN 12675, or NTCIP-compatible signal controllers via an opto-isolated interface — never has to visually guess the lamp state.
• Self-developed PCB stack: Multi-channel radar signal-conditioning board, IR illuminator driver, ANPR edge AI carrier board, and battery-backed UPS management PCB — all designed in-house, all customizable per project.
• Mains-powered with seamless UPS: AC 100–240 V input with a LiFePO4 UPS module sized for ≥4 hours of full operation through grid outages, so evidence is never lost during a brown-out.
• Open back-office integration: Push evidence to your existing Traffic Management Center over REST / SFTP / MQTT, or use REDCOAST.LTD's bundled cloud violation-management portal with operator workflows, ticket issuance, and analytics.

Technical Architecture

RC-RLS-400 is built around three subsystems housed in an IP66 roadside cabinet on a 6–8 m enforcement pole or gantry. The sensor subsystem combines a tracking Doppler radar (24 GHz K-band or 77 GHz), a 4K or 8 MP global-shutter machine-vision camera with motorized varifocal lens, a wider-angle context camera, and an infrared illuminator panel. The radar continuously tracks every vehicle approaching the stop line, returning instantaneous speed, lane, and trajectory; the cameras frame and lock to the offending vehicle the moment an event is triggered.

The processing subsystem is a REDCOAST.LTD self-developed edge AI gateway with an octa-core SoC and a 6 TOPS NPU dedicated to ANPR and vehicle-class inference. The gateway ingests synchronized camera frames and radar tracks, fuses them with the live signal phase pulled directly from the intersection's traffic-signal controller cabinet via a hardware opto-isolated phase tap, and reconstructs each violation as a multi-frame sequence — typically 3–5 evidential stills plus a 5–10 second MP4 clip showing the vehicle before, on, and after the stop line, with plate, speed, lane, and signal phase rendered as legal metadata. All inference runs on the box; no recurring cloud-AI fees, no privacy-sensitive raw video leaves the cabinet.

The integrity and communication subsystem signs each evidence packet using an on-board secure element, time-stamps it from a GNSS-disciplined OCXO, encrypts it at rest in a 1 TB local vault, and forwards it over 4G/5G, gigabit ethernet, or fibre to your back office. A tamper switch, door-open log, and 3-axis accelerometer detect physical interference; any tamper event is logged with photos and pushed to operators in real time.

Connectivity & Power

RC-RLS-400 is mains-powered — the right choice for urban intersections that already have permanent grid feed. Input is AC 100–240 V, 50/60 Hz, protected by a Class II surge arrester (40 kA, Type 2 SPD) and a self-developed LiFePO4 UPS PCB sized for ≥4 hours of full operation through grid disturbances. Steady-state consumption is 65–110 W, peaking briefly during IR illumination cycles.

For backhaul, the cabinet supports 4G LTE Cat-6 or 5G NSA/SA modems (multi-band, region-specific SIM), gigabit ethernet over RJ45 or SFP for fibre/PON connections, and automatic failover between the two. Field-side interfaces include opto-isolated RS-485 / RS-232 (radar, signal-controller phase tap, environmental sensors), 1000Base-T (cameras), and dry-contact I/O (auxiliary devices such as flashing beacons or external strobes). An optional Wi-Fi 6 maintenance access point lets field engineers configure the unit from a tablet without opening the cabinet.

Protection & Reliability

The cabinet is rated IP66 with IK10 impact protection, finished in smooth matte powder-coat (default RAL 7016 anthracite, project-customizable). Operating temperature is -30 to +60 °C with active thermal management; an internal heater enables cold-start down to -40 °C as a project option. Components and finishes are qualified for salt-spray, dust, UV, and humidity — equally suitable for coastal cities, desert highways, tropical urban centres, and high-altitude plateau roads. Critical electronic components are rated for ≥80,000 hours MTBF; the IR illuminator carries an L70 rating of 60,000 hours. A standard 3-year warranty is extendable to 5 or 7 years with SLA tiers.

Application Scenarios

• Urban arterial intersections: Four-to-six-lane signalized junctions where red-light running causes T-bone collisions; RC-RLS-400 replaces legacy film cameras and stand-alone radar units with one converged box.
• School zones: Time-of-day adaptive speed thresholds (e.g., 30 km/h during school hours, 50 km/h otherwise) plus permanent 24/7 red-light enforcement on the same hardware.
• Accident black-spot remediation: Rapid deployment to intersections flagged by safety audits, providing both deterrence and evidence-based prosecution.
• Bus-lane and HOV enforcement: ANPR + lane-assignment logic catches unauthorized vehicles in bus or carpool lanes during restricted hours.
• Protected-turn enforcement: Detection of drivers running protected left/right-turn arrows or filtering into oncoming traffic.
• All-red pedestrian-phase protection: Capture of vehicles entering the crosswalk while a dedicated pedestrian phase is active — a high-political-priority safety use case in many cities.

Case-style Examples

• Urban arterial corridor upgrade: A municipal traffic agency identified eight high-risk intersections along a 12 km arterial corridor where red-light running had caused 40+ injury crashes over two years. RC-RLS-400 cabinets were specified with 4-lane coverage, 77 GHz tracking radar, and direct integration into the legacy NEMA TS-2 controllers already on-site. Within nine months of activation, red-light violations dropped by 71% and serious injury crashes by 38%; all evidence flowed through REDCOAST.LTD's cloud back-office and out to the existing infringement-ticketing system over SFTP.
• School-zone safety roll-out: A regional road authority deployed 24 RC-RLS-400 cabinets at 24 schools, each configured with school-hour adaptive speed thresholds and integrated with school-zone flashing-beacon controllers. Speeding violations during school hours fell by 62% in the first term; the same cabinets continue to enforce red-light violations 24/7 outside school hours, maximizing return on the capital investment.
• Accident black-spot rapid retrofit: After a fatal crash, a city requested urgent enforcement at one intersection. REDCOAST.LTD shipped, installed, and commissioned an RC-RLS-400 cabinet within four weeks, retrofitting onto an existing signal-controller pole foundation. The signed evidence packets were ingested directly by the police-court IT system, and the first prosecution was upheld two months later.

Customization & Selection Guide

• Lanes covered: Pick the variant for 2, 3, 4, or 6 lanes per approach; multi-approach configurations are available for diamond, scissor, and complex urban intersections via a gantry-mount option.
• Speed sensor: Doppler radar (24 GHz) is the cost-effective default; 77 GHz tracking radar adds per-vehicle ID and lane-by-lane tracking; LIDAR is recommended where radar use is regulated (some EU states) or where strict vehicle-by-vehicle attribution is required.
• ANPR regional pack: The ANPR engine ships with EU+UK, GCC/Arabic, LATAM, or ASEAN plate models out of the box; REDCOAST.LTD trains a custom regional plate model for projects with non-standard formats or mixed scripts.
• Cabinet style: Pole-side cabinet for standard intersections, gantry-mounted for wide multi-lane crossings, or compact roadside enclosure for school-zone retrofits.
• Backhaul: 4G LTE or 5G for greenfield deployments; gigabit ethernet/fibre where the city already has dark fibre to the intersection; hybrid for evidence-critical sites.
• Back-office integration: Choose REDCOAST.LTD's bundled cloud violation portal + mobile inspector app, or direct integration into an existing TMC, Smart City platform, or police ticket-issuance system over REST / SFTP / MQTT.

Deployment & After-sales

A typical project moves from contract to live enforcement in 8–12 weeks: 2 weeks for survey, lane mapping, and signal-controller compatibility audit; 4–6 weeks for factory build and factory acceptance test (FAT); 1–2 weeks for installation, signal-phase tap, and on-site radar calibration with type-approval witness if required; a final 1 week for back-office integration and operator training. REDCOAST.LTD provides remote diagnostics, signed firmware OTA, on-site spares, and a structured 3-year warranty extendable to 5 or 7 years with response-time SLAs. Operator and field-engineer training is delivered in English by default, with other languages on request.

Standards & Compliance

Designed for global deployment, RC-RLS-400 targets the relevant standards in each market: OIML R-91 / R-115 for traffic speed measurement, EU MID (Measuring Instruments Directive) where speed evidence is regulated, EN 60068 for environmental qualification, IEC 60529 IP66 for ingress protection, EN 50130-4 for EMC, NEMA TS-2 / EN 12675 / NTCIP 1202 for signal-controller interfacing, and GDPR / local data-privacy law for ANPR data handling. National metrology type approval (e.g., PTB Germany, UTAC France, NMi Netherlands, China NIM, GSO GCC) can be supported through partner test houses on a per-project basis.

Why REDCOAST.LTD

REDCOAST.LTD delivers a complete software + hardware enforcement solution under one roof. Our self-developed PCB capabilities — multi-channel radar signal conditioning, IR illuminator driver, ANPR edge AI carrier, and UPS power management — let us tune each RC-RLS-400 to local plate formats, lane geometry, signal-controller types, and evidence-management workflows that off-the-shelf integrators simply cannot match. Custom enclosure colours (any RAL), custom firmware features, custom back-office integrations, and custom regional plate models are part of the project package, not an extra. Hardware ships factory-calibrated and is delivered together with a turnkey enforcement portal, mobile inspector app, and operator training — so your agency can prosecute violations from day one rather than spending months stitching together third-party components. We have built across grid and off-grid scenarios in equal measure, but for permanent urban intersections we always recommend the mains-powered RC-RLS-400 — it is the right architecture when the grid is already there at the foot of the pole.

Contact REDCOAST.LTD to discuss your enforcement programme. We will spec the exact RC-RLS-400 configuration for your intersections, traffic-signal controllers, ANPR regional pack, and back-office integration, with pilot cabinets ready in as little as 8 weeks.