IEO Tech
IEO Science and Technology
Smartphone automatic inspection machine: a 2-minute check-up for every second-hand phone
The ieoDetect smartphone automatic inspection machine integrates a central control system, an inspection app, industrial cameras, lighting, microphones and motors. It simulates real user actions to inspect the hardware functions and performance of a second-hand phone quickly and thoroughly, then generates an objective PDF inspection and evaluation report that serves as the core basis for pricing, recycling and resale.
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Manual inspection pain points in the phone recycling industry
Manual quality inspection cannot support large-scale second-hand phone recycling. Five pain points directly affect efficiency, cost and the trading experience.
High manual inspection cost
Training professional inspectors is expensive, and labor costs keep rising.
Efficiency bottleneck
One person needs 3-5 minutes per phone, which cannot keep up with large recycling volumes.
Standards are hard to unify
Different inspectors apply different standards; the subjectivity easily leads to trading disputes.
Limited coverage
Manual inspection cannot deeply test every sensor, subtle display defect or complex function interaction.
Results are hard to trace
Inspection results rely on hand-written records and rarely become data assets for analysis and improvement.
System overview: one machine replaces manual work for a full check-up
The ieoDetect smartphone automatic inspection machine integrates central control software and a phone app, and can schedule hardware such as industrial cameras, lighting, microphones and motors while running intelligent inspection algorithms - a professional automated device for inspecting many smartphone functions. It simulates user actions to give the hardware functions and performance of a second-hand phone a fast, thorough check-up and produces an objective inspection and evaluation report as the core basis for pricing, recycling and resale.
Inspection items
Covers the main function items - cameras, screen, audio, sensors, keys and system information. Inspection items and pass criteria can be configured per phone model.
Front camera
White balance, sharpness
Rear camera
White balance, sharpness, flash
Screen display
Cracks, stripes, color uniformity, bright spots, dark spots, liquid leakage
Audio
Frequency, volume, signal-to-noise ratio, distortion
Sensors
Vibration, ambient light, gyroscope, accelerometer, screen sensitivity
Keys
Volume keys (manual assistance required)
System information
Model, OS version, storage, sensor support and more
Inspection flow
Once the phone is placed in the machine and started, checks run automatically in sequence; the volume keys and screen touch sensitivity are completed manually following the prompts in the app.
Read the phone configuration
Screen inspection: capture white, red and black screens and analyze cracks, stripes, color uniformity, bright spots, dark spots and liquid leakage
Vibration and gyroscope sensing
Rear camera inspection: white balance, sharpness, flash
Accelerometer and ambient light sensing
Front camera inspection: white balance, sharpness
Video recording inspection: clarity
Speaker and microphone inspection: frequency, volume, signal-to-noise ratio, distortion
Bluetooth function
Volume key inspection (app prompt, manual assistance required)
Screen touch sensitivity inspection (app prompt, manual assistance required)
Central control system IEOSPTsystem
The central control system of the smartphone inspection equipment connects the phone app and schedules the hardware, coordinating the phone with cameras, lighting and audio. It is a multi-threaded, high-performance communication framework.
Device orchestration
Connects the phone app and schedules cameras, lighting, audio and motors to work together.
Intelligent image analysis
Allocates CPU resources to compute sharpness and color uniformity of camera and screen images and to detect bright/dark spots, dead pixels and dead lines.
Intelligent audio analysis
Analyzes the volume and frequency of the earpiece and speaker to identify noise.
Multi-threaded high-performance framework
Multi-threaded concurrent communication and computation; the inspection flow runs automatically without human intervention.
Automatic result judgement
Each inspection item reports its measured value, the threshold range and a pass/fail conclusion.
Report production and management
Inspection records are stored in the database; generate a standard PDF inspection report in one click.
Sample inspections
All images below come from real inspection runs on the machine.
Screen inspection
- Screen brightness uniformity
- Screen color uniformity
- Screen color temperature
- Screen dead pixels, bright spots, dead lines, stripes, stains, dark blobs, light transmission, light leakage, burrs
Camera inspection
- Rear camera telephoto resolution
- Rear camera close-focus resolution
- Front camera resolution
Touch, sensing and more inspection items
Inspection report
A standard PDF inspection report is generated automatically once inspection finishes: the first page gives the total number of inspection items, pass/fail statistics and the overall conclusion, while the body lists each item's measured values, judgement and process screenshots. It can be used directly as the basis for phone pricing, recycling and after-sales service.
Up and running in three steps
One person can handle deployment and inspection; no training needed.
Install the ieo inspection app on the phone under test; free for both iOS and Android.
Place the phone in the inspection chamber, choose the model and inspection items in the control interface, then click start.
Inspection finishes in about 2 minutes and a standard PDF inspection report is generated automatically.
Go to the download center for the inspection app
On an iPhone, search for [ieeoo] in the App Store to download the inspection app.
Device function video
Live demo: the machine completes the whole inspection flow automatically after the phone is placed inside.
Specifications
Contact us
Ask us for a demo, a quotation or a custom configuration - we can recommend a setup based on the inspection items you need.
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