RU2019112230A - Method of synchronizing the progress of the built-in clocks of autonomous wireless devices - Google Patents

Claims (10)

A method for synchronizing the progress of the built-in clocks of autonomous wireless devices, which includes the following steps: a) transmission by the radio module of the synchronizing device of a sync packet with a previously known signature to the radio module of the synchronized device, while the synchronizing device stores the time of transmission of the sync packet; b) receiving, by the radio module of the synchronized device, a sync packet from the radio module of the synchronizing device, while the synchronized device stores the time of receiving the sync packet; c) receiving by the radio module of the synchronizing device an information packet from the radio module of the synchronizing device; d) calculation by the processor of the synchronized device the difference between the clock readings of the synchronizing and synchronized devices according to the formula Δt = t ₁₁ -t ₂₁ ; e) supplying the slave device clock by the value Δt and storing the new slave device clock readings; f) repetition of operations a) - e); g) calculation by the processor of the synchronized device a new value of the difference between the clock readings of the synchronizing and synchronizing devices according to the formula

and the rate of increase of the clock run difference according to the formula

; h) supplying the clock of the slave device by the value Δt and storing the new readings of the clock of the slave device, while in the interval before receiving the next sync packet after a certain configurable number of milliseconds δ, it supplies its clock by the value δ * V; i) repetition of operations g) - i) until the time when the run-off time calculated by the slave device for several consecutive receptions of the sync packet from the master device is less than 1 μs.