An occupancy detection device comprising:
- a microprocessor unit, at least one sensor, at least one light source, at least one user input, at least one power source and at least one radio,
- wherein the at least one sensor is selected from an accelerometer sensor, a spring loaded vibration (mechanical vibration) sensor, a piezoelectric vibration sensor, a mechanical tilt sensor, an infrared light sensor, an ultrasound sensor, a sonar sensor, a microphone sensor, a loadcell, a gesture sensor, a time of flight (time-of-flight) sensor, a liDar sensor and a laser sensor;
- wherein said occupancy detection device is attached to a table or be near the table in a dinning room or a restaurant or a meeting hall or an entertainment hall or a sporting hall;
- wherein said occupancy detection device is configured to detect and/or indicate a status of the table or a plurality of statuses of the table, wherein the status of the table or the plurality of statuses of the table includes a presence of at least one person at and near the table, a non-presence of a person at and near the table, a no person at and near the table, an availability for use of the table, a non-availability for use of the table, an ongoing use description of the table, a planned use description of the table and a service description of the table, wherein said occupancy detection device indicates the status of the table or the plurality of statuses of the table via the at least one light source;
- wherein the at least one user input is selected from a button, a capacitive touch sensor, a dial, a switch, a gesture sensor, a barcode scanner, a quick response (QR) code scanner, a wireless communication via Bluetooth and a wireless communication via near field communication (NFC), wherein the at least one user input is used to detect the status of the table or the plurality of statuses of the table;
- wherein said occupancy detection device is used as a single detector device or as an occupancy detector network, wherein the occupancy detector network is configured as a mesh network or a star network, wherein the mesh network and the star network are comprised by network and protocol structure of at least one of Bluetooth, ZigBee, ZWave, Wi-Fi, Wirepas, Thread, 6LoWPAN, and any other wireless networks and protocols that allow wireless mesh network structure and/or wireless star network structure;
- and
- wherein the single detector device or the occupancy detector network configured to communicate wirelessly via the at least one radio, the status of the table or the plurality of statuses of the table to at least one mobile device and/or a central device.