Technologies are described herein for time-synchronizing sample data from independent recording devices utilizing samples tagged from a highly accurate time source. Datasets comprising samples representing a signal over a period of time are received from separate recording devices. A number of samples in each dataset are tagged indicating that the sample was taken immediately after a pulse in a PPS signal from a highly accurate time source onboard the recording device. The indices of the PPS-tagged samples, along with corresponding time values, are extracted from the datasets, and a set of common time values between the datasets is determined. A pair of frames of a specific length are extracted from each dataset aligned on the PPS-tagged samples corresponding to the common time values and comparative analysis is performed on the pair of frames.

Technologies are described herein for time-synchronizing sample data from independent recording devices utilizing samples tagged from a highly accurate time source. Datasets comprising samples representing a signal over a period of time are received from separate recording devices. A number of samples in each dataset are tagged indicating that the sample was taken immediately after a pulse in a PPS signal from a highly accurate time source onboard the recording device. The indices of the PPS-tagged samples, along with corresponding time values, are extracted from the datasets, and a set of common time values between the datasets is determined. A pair of frames of a specific length are extracted from each dataset aligned on the PPS-tagged samples corresponding to the common time values and comparative analysis is performed on the pair of frames.

An information processing apparatus includes: a memory configured to store first system time; and a processor configured to: receive, from an information acquisition apparatus after the first system time is written in the memory, first information acquired by the information acquisition apparatus and first time information indicating acquisition time of the first information; receive, from the information acquisition apparatus after receiving the first information and the first time information, second information and second time information indicating acquisition time of the second information; converting, based on the first system time, reception time at which the first information and the first time information are received into second system time; convert, based on the second system time and the first time information, the second time information into third system time; attach the second system time to the first information; and attach the third system time to the second information.

Disclosed are methods and apparatus for calculating sensor timing corrections at a sensor device. The methods and apparatus determine a sampling period as a number of cycles of an internal clock counted while a configured number of samples is captured in a slave device, determine a time interval between samples using an offset from a time of an observed occurrence of a hardware event on a communication link, the offset being received in a command from a master device, and adjust the time interval between samples by iterative digital approximation to correct for differences between timing of the slave device and the master device while concurrently calculating a watermark time corresponding to a sample start time configured by the master device for one or more slave devices.

Disclosed are methods and apparatus for calculating sensor timing corrections at a sensor device. The methods and apparatus determine a sampling period as a number of cycles of an internal clock counted while a configured number of samples is captured in a slave device, determine a time interval between samples using an offset from a time of an observed occurrence of a hardware event on a communication link, the offset being received in a command from a master device, and adjust the time interval between samples by iterative digital approximation to correct for differences between timing of the slave device and the master device while concurrently calculating a watermark time corresponding to a sample start time configured by the master device for one or more slave devices.

Systems and methods for taking sensor measurements is provided. The system includes a sensor configured to detect sensor inputs from a signal source and generate a sensor output signal. The system further includes a synchronization adaptor configured to receive the sensor output signal, to transmit a timing synchronization signal on a communication channel, and to transmit the sensor output signal on the communication channel.

Systems and methods for taking sensor measurements is provided. The system includes a sensor configured to detect sensor inputs from a signal source and generate a sensor output signal. The system further includes a synchronization adaptor configured to receive the sensor output signal, to transmit a timing synchronization signal on a communication channel, and to transmit the sensor output signal on the communication channel.

A control method of a wearable apparatus and related apparatuses are provided. A wearable apparatus includes a first wearable device and a second wearable device. The first wearable device and the second wearable device each include a control circuit and an input-output circuit. The wearable apparatus is coupled with an electronic apparatus. Control circuit of the first wearable device is configured to control input-output circuit of the first wearable device and to send, via the input-output circuit of the first wearable device, a first control instruction to the electronic apparatus, whereby the electronic apparatus executes the first control instruction. Control circuit of the second wearable device is configured to control input-output circuit of the second wearable device and to send, via the input-output circuit of the second wearable device, a second control instruction to the electronic apparatus, whereby the electronic apparatus executes the second control instruction.

A control method of a wearable apparatus and related apparatuses are provided. A wearable apparatus includes a first wearable device and a second wearable device. The first wearable device and the second wearable device each include a control circuit and an input-output circuit. The wearable apparatus is coupled with an electronic apparatus. Control circuit of the first wearable device is configured to control input-output circuit of the first wearable device and to send, via the input-output circuit of the first wearable device, a first control instruction to the electronic apparatus, whereby the electronic apparatus executes the first control instruction. Control circuit of the second wearable device is configured to control input-output circuit of the second wearable device and to send, via the input-output circuit of the second wearable device, a second control instruction to the electronic apparatus, whereby the electronic apparatus executes the second control instruction.

A method collects data, a physical or physico-chemical parameter and/or an operating state, during operation of a sensor. The sensor contains a measuring element which provides elementary measuring units, which correspond to a physical or physico-chemical variable or the physical or physico-chemical parameter, as raw measurement data, and the sensor has a communication device and a memory. To determine the measurement resolution of the sensor, the conditions for generating time stamps are first determined using a correlation model. Time stamps of successive raw measurement data are generated in the sensor on the basis of the correlation model. The time stamps are transmitted with the result that the raw measurement data acquired by the measuring element are reconstructed and evaluated based on the time stamps using the correlation model. Wherein operating state monitoring of the sensor is carried out by comparing current time stamps with historical and/or empirical time stamps.