Emergency Vehicle Lighting Control System

A leading manufacturer providing lighting and control systems to the Emergency Services came to Northern Hi-Tec for the implementation and manufacture of a complete solution for the in-vehicle control of light-bars and sirens.

Although the client provided the initial concept and basic design, Northern Hi-Tec worked closely with them to take the design elements and concepts through to full scale production within a short timescale.

The system consisted of an in-vehicle handset and a high power control box with a very small footprint, interconnected by CAN bus. The controller provides nine 15-Amp outputs, with the overall current controlled by the processor on a priority basis. The programmable backlit handset can be used to control any sequence of lights as well as providing audio through to the clients CAN based siren unit.

The end solution has provided the client with an industry-leading package in both size and performance that the competition can only strive to catch up with.

Services provided included:

• Electronic Hardware Design
• Embedded Software Design and Implementation
• Multi-Layer PCB Layout
• Prototype Production
• Design to EMC and Automotive Type Approvals
• Liaison with Clients' Industrial Design for Mechanical Constraints
• ATE and Functional Test Development
• Full Scale Cell-Based Production
• Full Supply Chain Management

Manufacturing facilities employed:

• Surface Mount Assembly
• Through Hole Assembly
• ATE for Full Manufacturing Defects Analysis
• Comprehensive Full Functional Testing
• Label and Handset Switch Overlay Production
• Full Product Box Build into both Steel and Injection Moulded Enclosures,
  and shipped to client in its final retail packaging