Abstract:
Systems and method to measure a population size of mobile devices that have visited a region during a time period, by: converting location data of mobile devices into visitation data using a grid reference system, where for each mobile device and each of a plurality of time intervals in the time period, the visitation data identifies whether or not the mobile device has visited the region in the time interval; applying the visitation data as a capture history in an imaginary capture-recapture exercise, where whether or not a device has visited the region during a time interval represents whether the device is captured in the exercise in the respective capture occasion corresponding to the time interval; and estimating the population size based on an estimate of a population size of mobile devices that are not captured in the exercise from a capture-recapture statistical modeling of the capture history.
Abstract:
Methods, devices and system are provided. One method includes capturing activity data associated with activity of a user via a device. The activity data is captured over time, and the activity data is quantifiable by a plurality of metrics. The method includes storing the activity data in storage of the device and, from time to time, connecting the device with a computing device over a wireless communication link. The method defines using a first transfer rate for transferring activity data captured and stored over a period of time. The first transfer rate is used following startup of an activity tracking application on the computing device The method also defines using a second transfer rate for transferring activity data from the device to the computing device for display of the activity data in substantial-real time on the computing device.
Abstract:
Systems and method to measure a population size of mobile devices that have visited a region during a time period, by: converting location data of mobile devices into visitation data using a grid reference system, where for each mobile device and each of a plurality of time intervals in the time period, the visitation data identifies whether or not the mobile device has visited the region in the time interval; applying the visitation data as a capture history in an imaginary capture-recapture exercise, where whether or not a device has visited the region during a time interval represents whether the device is captured in the exercise in the respective capture occasion corresponding to the time interval; and estimating the population size based on an estimate of a population size of mobile devices that are not captured in the exercise from a capture-recapture statistical modeling of the capture history.
Abstract:
Methods, systems and devices are provided for capturing activity data associated with activity of a user via a device and transferring the data to a client device at a selected defined transfer rate, based on an update condition. The activity data is captured over time. The activity data is stored in storage of the device. The method sets a data transfer rate between the device and the computing device based upon the detected update condition. The update condition is used to select one of a first transfer rate for transferring activity data captured and stored over a period of time or a second transfer rate for transferring activity data that is displayable in substantial-real time on the computing device. The first transfer rate is set in response to scaling-up a connection interval and the second transfer rate is set in response to scaling-down the connection interval.
Abstract:
In order to increase the ''''sale'''' or ''''cost'''' registering capacity of a standard, conventional threewheel register (counter) used in gasoline dispensers, a modified price wheel has been developed as a substitute for the lowest-order price wheel of a conventional register. This new wheel carries indicia from zero to 99 and during counting makes one revolution for every one hundred cents'' worth of gasoline dispensed. The new wheel has an antibacklash arrangement for eliminating inaccuracies during the counting mode, and has an improved reset stop and a linkage mechanism associated therewith, for providing accurate resetting and for preventing improper operation during the resetting mode.