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18. D5 introduces a portable device for monitoring vehicle operation and driver behaviour. The portable device in D5 can be a cellular phone, smartphone, personal data assistant (PDA), personal navigation device (PND) like a GPS system, tablet computer, smartwatch, wearable computer, personal display system, laptop, head-mounted display, eyeglass display, pocket computer, pocket projector, miniature projector, wireless transmitter, micro projector, headphone device, earpiece device, or any mobile health device capable of storing, receiving, or transmitting health-related information. The portable device and/or vehicle in D5 uses a plurality of sensors, including a Global Positioning System (GPS) sensor, accelerometer (such as a 3D accelerometer), gyroscope (such as a 3D gyroscope), magnetometer, touch screen, button or sensor, temperature sensor, humidity sensor, and proximity sensor. These sensors enable comprehensive monitoring of vehicle parameters and driver behaviour. Furthermore, the system in D5 includes a device that physically and/or wirelessly connects to the vehicle, enabling communication between the vehicle and the portable device. This allows for the portable device to be used in multiple vehicles, enhancing its usage and functionality compared to the fixed system in D4.