System, a positioning device, a slave anchor electronic device, and related methods
A method for determining a position of a positioning device, for synchronization of positioning devices, and/or for synchronization of slave anchor electronic devices. The method is performed by a system having a master anchor electronic device, and a plurality of slave anchor electronic devices including a first slave anchor electronic device. The method includes broadcasting, from the master anchor electronic device, a first ultra-wide band (UWB) signal, at a first predetermined time. The method includes receiving, at the first slave anchor electronic device, the first UWB signal. The method includes determining, at the first slave anchor electronic device, a first transmission time based on the first UWB signal. The method includes broadcasting, from the first slave anchor electronic device, a second UWB signal at the first transmission time.
1. A method, performed by a system comprising a master anchor electronic device, and a plurality of slave anchor electronic devices including a first slave anchor electronic device, the method comprising:
broadcasting, from the master anchor electronic device, a first ultra-wide band (UWB) signal, at a first predetermined time;
receiving, at the first slave anchor electronic device, the first UWB signal;
determining, at the first slave anchor electronic device, a first transmission time based on the first UWB signal; and
broadcasting, from the first slave anchor electronic device, a second UWB signal at the first transmission time; and
receiving, at a first positioning device of the system, a radio synchronization signal indicative of a first positioning event.
2. The method according to claim 1 , the method comprising:
determining, at the first positioning device, the first positioning event based on the radio synchronization signal; and
entering a power saving state of the first positioning device until the first positioning event.
3. The method according to claim 1 , the method comprising:
detecting an inertial measurement, via an inertial measurement device of the first positioning device;
determining, at the first positioning device, based on the inertial measurement, a positioning request; and
determining, at the first positioning device, a next positioning event based on the positioning request.
4. The method according to claim 1 , the method comprising:
determining, at the first positioning device, the first positioning event using a timer of the first positioning device.
5. The method according to claim 1 , the method comprising:
receiving information indicative of an infrastructure event via a wireless interface of the first positioning device; and
determining, at the first positioning device, a next positioning event based on the infrastructure event.
6. The method according to claim 1 , the method comprising:
switching from a power saving state to an activation state of the first positioning device for the first positioning event.
7. The method according to claim 1 , the method comprising:
receiving, at the first positioning device, the first UWB signal.
8. The method according to claim 1 , the method comprising:
receiving, at the first positioning device, the second UWB signal at the first positioning event.
9. The method according to claim 8 , the method comprising:
obtaining, at the first positioning device, based on the first UWB signal, the second UWB signal, and a third UWB signal from a second slave anchor electronic device of the system, a first position parameter of the first positioning device.