I would like to make a social distance meter and the device should only avoid from humans, not the obstacles. I'll use an ultrasonic sensor and a PIR sensor but I'm not sure it will be enough. Do I need to use a temperature sensor too? But not sure how I can implement the temperature sensor from social distancing approach. Do you know any specific sensor or method to detect only humans?
Afaik, infrared sensors are used for this, they also work in the dark.
When searching for human sensors, I also came for example to this sensor: AK9750 Human Detection IR Sensor Module. This sensor has a range of 2-3 meters which should be sufficient for social distancing measurements. Probably there are more similar sensors.