A method at a portable sensor apparatus for detecting an approaching vehicle, the method including detecting, using at least one detector at the sensor apparatus, signal energy of a signal from the approaching vehicle; analyzing the signal energy using a processor at the sensor apparatus to determine that an alarm should be triggered; and based on the analyzing, causing the alarm from an alert mechanism on the sensor apparatus.
METHOD AND APPARATUS FOR VULNERABLE ROAD USER ALERT
2019-08-15
Patent
Electronic Resource
English