Requirements Tracing, Simulation & Verification Testing
Before initiating a prototype or manufacturing run of a new design, several steps are taken to ensure that the design is sound, will meet the system requirements and costly mistakes and time consuming rework will be avoided. With Au-Zone's broad technical design expertise, and our tested internal review process, we have a proven track record of getting it right the first time. If you have a design that's just about to go into manufacturing you can leverage our skills, knowledge and process in a formal design review, or more typically these activities are completed as part of an overall turnkey project.
Depending on the complexity of the project, several areas which are typically reviewed are described below, followed by some specific examples:
- Formal, detailed design reviews of system requirements and commercial product objectives
- Design simulations of electronics ie digital timing & analog circuit analysis, FPGA simulations
- Formal Software review including BSP and Drivers
- Physical -- elecro-mechanical design review to ensure form, fit and function
- Manufacturability review including BOM costs, component availability & DFT issues
- Safety critical design reviews
- Thermal Analysis (FEA, CFD)
- Modelling of optical elements
- Reliability and MTBF Analysis
Mechanical fit, alignment and clearance review
- Automated generation of complete 3D models for all components, assemblies and enclosures
- Mechanical to Electrical collaboration to ensure assemblies fit together properly, are manufacturable and have acceptable tolerances
- Process allows for easy clearance and alignment checks between components, and other assemblies within the device such as stacked PCB assemblies, enclosure apertures, optical alignment
- Avoid costly mechanical or PCB changes due to component interferences or misaligned connectors
The image in left shows that the desired connector would protrude beyond the enclosure, this was easily resolved by selecting a different connector. The image on the right demonstrates a quick alignment check for mounting holes on a board stack.
Electrical timing analysis
The timing analysis shown in the diagrams below demonstrates a timing issue on a compact flash interface caused by a limitation in the configurability of the host processor. This problem was easily resolved at the verification stage with the addition of some delay using an existing FPGA. If not uncovered at this stage, this issue would likely have resulted in a board spin.
- Downhole Camera
- Automated Flight Information Reporting System
- Power Substation Monitor & Data Concentrator