Campus-grade CCTV Surveillance System (60+ Cameras)

Project Overview

A Tier-1 client in the security and surveillance domain required a reliable, future-ready, and highly scalable CCTV system for a 60+ camera campus-wide deployment. The customer expected an end-to-end solution, so our team delivered a complete product stack — hardware design, Linux BSP (Yocto + PREEMPT_RT), ISP tuning, multi-stream video pipeline development, ONVIF/VMS integration, mechanical engineering, and production certification. The resulting platform provides high-quality H.265/H.264 multi-stream video, deterministic low-latency live viewing, secure OTA updates, full ONVIF compliance, and production-grade image quality using vendor ISP toolchains. Here are the key requirements of the client:

Campus-Wide Real-Time Surveillance

Needed stable, low-latency live monitoring across a 60+ camera network with reliable multi-stream video.

Production-Grade Image Quality

Required consistent day/night/HDR/IR performance with proper ISP tuning for all camera SKUs.

Enterprise Security & VMS Compatibility

Demanded ONVIF compliance, secure boot, signed firmware, and seamless integration with major VMS platforms.

Business Challenges

Campus-wide surveillance introduced challenges for the client in achieving stable multi-stream video, consistent day/night image quality, and predictable low-latency live monitoring. Legacy customer systems struggled with ONVIF/VMS interoperability, real-time capture under load, and environmental stress factors like heat, dust, and vibration—impacting overall campus-wide security effectiveness.

Long-Distance, Multi-Camera Infrastructure

Large deployments required stable high-resolution live view, consistent latency, and robust network handling.

Real-Time Video & Low Latency

Achieving predictable p99/p99.9 latency while handling multi-stream encoding and event processing was critical.

Image Quality Across Environments

Day/night, HDR, IR performance and per-lens tuning required controlled ISP workflows, not generic pipelines.

Storage Durability & Reliability

Continuous recording stressed microSD/eMMC — risking data loss, fragmentation, and early wear-out.

Silicon Signals’ Solution

Client needs powered our real-time video, ISP tuning, secure BSP, and storage-safe architecture to deliver robust, scalable surveillance.

Real-Time Video Pipeline

PREEMPT_RT kernel, CPU isolation, IRQ tuning, dmabuf zero-copy, and lockless buffers ensured deterministic low-latency capture-to-stream performance.

Multi-Stream Encoding Architecture

H.265 primary + multi-substreams with adaptive bitrate, validated encoder capability tables, and intelligent GOP tuning.

Robust Linux BSP & Security

Yocto BSP, kernel/device-tree integration, secure boot, signed images, OTA with rollback, and reproducible build pipelines.

Production-Grade ISP & Image Tuning

Two-track approach: fast libcamera POC → vendor ISP toolchain for final WDR/HDR, IR tuning, thermal stability, and DORI optimization.

Reliable Storage for Continuous Recording

Optimized filesystem, preallocated ring buffers, wear monitoring, and power-loss-safe recording.

ONVIF + VMS Interoperability

Full ONVIF Device, Media, Imaging, Events, and PTZ services tested against major VMS vendors with an in-house test harness.

Engineering Facts That Matter

Driven by innovation, Silicon Signals helps clients build dependable, scalable security and video systems.

Multi-stream uptime across 60+ cameras

0 %

Deterministic glass-to-glass latency

< 0 ms

Improved encoder stability

0 x

Unlock Real-Time, High-Quality Surveillance.

Results You Can Count On

Tech Stack

Hardware

Multi-core ARM SoC, integrated ISP, H.265 encoder, PoE, IP66/IK10 housings.

Software

Yocto Linux BSP, PREEMPT_RT, V4L2, ONVIF stack, RTSP/HTTPS, OTA.

Drivers & Config

ISP drivers, sensor drivers, encoder modules, DT bindings.

Tools

ONVIF Device Test Tool, perf, v4l2-ctl, IQ lab setup, thermal chamber.

Proven Outcomes

Reliable, low-latency multi-stream video and production-grade imaging ensured our client a safer, scalable, and high-performance campus surveillance system.

Real-Time Performance

Deterministic low-latency streaming with PREEMPT_RT; stable glass-to-glass performance across all 60+ cameras.

Superior Image Quality

Vendor-grade ISP tuning delivers crisp day/night, HDR, and IR performance with enhanced consistent results across SKUs.

Multi-Stream Efficiency

Optimized H.265/H.264 pipelines provide high-res primary + multiple sub streams without overloading hardware encoders.

Storage Reliability

Power-safe recording, wear monitoring, and pre-allocated buffers ensure dependable continuous video retention.

Enterprise-Grade Security

Secure boot, signed firmware, TLS APIs, and identity management provide robust protection for devices from unauthorized access.

ONVIF & VMS Compatibility

Full ONVIF Device/Media/Imaging/Events support ensures seamless smooth integration with major VMS platforms.

Let’s build smarter, safer surveillance systems together

Ensuring campus-wide security requires real-time performance, consistent imaging, and enterprise-grade reliability.