What are the technical requirements to Android smartphone or tablet?
A phone or tablet with the following specifications -or higher- is fine:
Operating system: Android 5.1
Screen resolution and size: 480 x 800, 4″
Memory: 1 GB of RAM
GPS sensor: required
Camera: recommended, with autofocus
Screen brightness should be suitable for work under strong sunlight.
What about battery?
Apps are by optimized for low battery use. You can let each new labour-shift carry a new fully charged device (Android smartphones are inexpensive), or provide external battery/ power bank to ensure continuous onsite work.
Log crane activities and waiting times in real-time. On a smartphone. From the quay-side or onboard.
Log Crane Activities in Real-Time. Get insight in actual net crane working hours. And reasons for stoppages. Average one minute wait for yard truck for 400 discharge containers for long crane, is several hours vessel delay sailing to next port.