IEO Tech|Auto
IEO Science and Technology
IEO automated in-line advanced smartphone inspection system
Reserved communication protocol supports future app feature upgrades
Inspects front and rear camera resolution
Screen dead pixels, bright spots and stripes
Gyroscope sensor, flash
Screen sensitivity
Audio volume, signal-to-noise ratio, etc.
Performance metrics that used to require specialist staff
Lowers the skill requirements for inspection staff
Unifies inspection standards
Reduces labor costs
1Phone Inspection Functions
Station 1: loading and reading raw sensor values
Station 2: front camera fixed focus, rear camera close focus, front camera white card, light sensor changes
Station 3: rear camera telephoto, screen inspection (white, black and red screens)
Station 4: rear camera white card, flash, screen capture
Station 5: gyroscope, compass, gravity sensor
Station 6: touch, 3D Touch
Station 7: screen authenticity test instrument
Station 8: front/bottom microphone, earpiece, speaker
Station 9: unloading and receiving the inspection report
2Performance
Multi-threaded control design in an in-line layout
Supports inspecting 8 phones simultaneously
Average throughput of one phone every 20~25s.
Equipment UPH (units per hour) >= 150PCS.
3Inspection Equipment Control System
It connects to the phone app, schedules PLC hardware and controls cameras, lighting and audio equipment. It allocates CPU resources to compute camera and screen data - sharpness, color uniformity, and the presence of bright/dark spots or dead lines - and to analyse earpiece and speaker volume and noise. It is a multi-threaded, high-performance communication computing framework.
4Resolution Analysis
1. Rear camera telephoto resolution
2. Rear camera close-focus resolution
3. Front camera resolution
4. Front camera shading
5Screen Analysis
1. Screen brightness uniformity
2. Screen color uniformity
3. Screen dead pixels, bright spots, dead lines, stripes, stains, dark blobs, light leakage, light bleed and burrs
6PMADS Testing Advantages
1. Lower manpower and environment setup requirements
The system automates camera, screen and audio inspection in a production line, reducing the manpower and test hardware that manual testing requires.
2. Replaces human visual judgment
Intelligent algorithms detect subtle defects in the lens, screen and audio that would otherwise need a trained human eye. Every inspection is archived and replayable, giving accurate and standardized results.
3. Automated control of the test process
Switching and control during testing are fully automated with no manual intervention, delivering an efficient and consistent inspection process.