1 / 9

Project PRINT TCSP 8 – Reliability & Safety Analysis

Project PRINT TCSP 8 – Reliability & Safety Analysis. Team 8 – Siddharth Bhosale. Project Abstract. Printer power management system. Use the power indicator LED as a light sensor. Control printer's power based on light levels. Route incoming print jobs to local storage/printer.

senta
Download Presentation

Project PRINT TCSP 8 – Reliability & Safety Analysis

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript


  1. Project PRINTTCSP 8 – Reliability & Safety Analysis Team 8 – Siddharth Bhosale

  2. Project Abstract • Printer power management system. • Use the power indicator LED as a light sensor. • Control printer's power based on light levels. • Route incoming print jobs to local storage/printer.

  3. Criticality Levels • High Criticality • Could lead to user injury • Medium Criticality • Device not working, cannot be repaired • Low Criticality • Repairable problems

  4. Components Chosen • PIC32MX795F512H Microcontroller • High complexity, 64 I/O pins • LM3102 Voltage Regulator • High temperature • Vout greater than 3.6 could burn components • DK1A-L-3V-F Power Relay • Carries 110 VAC • Risk of injury if not handled properly

  5. Reliability Analysis Parameters

  6. PIC32MX795F512H Microcontroller λP = (C1 x πT + C2 x πE) x πQ x πL λP = (0.56 x 0.10 + 0.032 x 2) x 10 x 1 λP = 1.2 Failures / 106 hours of operation MTTF = 1/ λP = 833,333 hours = 95 years

  7. LM3102 Voltage Regulator λP = (C1 x πT + C2 x πE) x πQ x πL λP = (0.010 x 0.10 + 0.0091 x 2) x 10 x 1 λP = 0.192 Failures / 106 hours of operation MTTF = 1/ λP = 5,208,333 hours = 594 years

  8. DK1A-L-3V-F Power Relay λP = (C1 x πT + C2 x πE) x πQ x πL λP = (0.010 x 0.10 + 0.0016 x 2) x 10 x 1 λP = 0.042 Failures / 106 hours of operation MTTF = 1/ λP = 23809524hours = 2716 years

  9. FMECA

More Related