摘要:
A method for deciding the relationship between a physical property and a threshold, comprising measuring a physical property to obtain a measured value, calculating the distribution of actual values for the physical property, calculating the error distribution of the obtained measured value, calculating the penalty associated with an erroneous decision, and calculating a margin based on the expected loss from selecting at least one possible actual value as a function of the calculated distribution of actual values, the calculated error distribution of the measured value, and the calculated penalty associated with an erroneous decision. Embodiments including a system and apparatus are also disclosed.
摘要:
A system with a set of modules having synchronized timing. The synchronized timing of the modules enables precise coordination of measurements and stimuli for an arbitrary number of modules. The modules communicate and maintain time synchronization using a communication mechanism that may be adapted to localized positioning of modules and/or widely dispersed positioning of modules with no change to the underlying functionality in the modules.
摘要:
A body for a blow-molded waste cart and a waste cart having a blow-molded hollow body having a rear wall, a floor, the body and floor form a waste receptacle and a pair of axle straps integrally formed with the body. The axle straps each include a penetration with a strap bearing surface formed in penetration of the axle strap. The cart body may also include a longitudinal bearing surface with the strap bearing surface being aligned with the longitudinal bearing surface. The strap bearing surface is preferably cylindrical. A waste cart may be formed by adding an axle mounted to the body by the axle straps and wheels mounted to either end of the axle. A method of forming the carte body is also disclosed in which a pair of opposed pins are slid into the axle straps to form the axle strap bearing surfaces.
摘要:
A method of synchronizing respective state transitions in a group of devices including at least one responding device is disclosed. The group of devices is communicatively coupled to an initiating device via a communication network. The method includes the at least one responding device receiving a trigger message from the initiating device. The trigger message includes a state transition time or a time from which a state transition time is obtainable. The method further includes the at least one responding device jointly making a respective state transition at the state transition time. A responding device, and a system including the initiating device and the responding device are also disclosed.
摘要:
An instrument display that provides increased utility and flexibility by employing multiple range visual depictions. An instrument according to the present teachings includes an instrument display for providing a visual depiction of a set of physical phenomena wherein the visual depiction includes a trace for each physical phenomenon superimposed on a set of axes that provide multiple ranges.
摘要:
Methods and devices for coordinating and displaying electronic signals are disclosed. For example, an exemplary apparatus configured a particular system can include a local timing device capable of receiving external real-time clock signals from a first time source, the timing device being capable of maintaining a synchronized local real-time clock based on the received external real-time clock signals, instrumentation configured to detect and capture one or more local signals, an operator interface having at least a first display window capable of displaying an image of the one or more local signals, and a marking device coupled to the operator interface and configured to enable an operator to manually align one or more local markers to specific points relative to the displayed local signal image, wherein the marking device is further configured to derive a marking time for each local marker using the local real-time clock, wherein the marking device is further configured to receive remote marking information from a remote device, and wherein the apparatus is configured to provide at least one of the remote marking information and data derived from the remote marking information to the operator via the display window.
摘要:
A method of locating an acoustic source, the method comprising sampling said acoustic source at a plurality of acoustic receivers having different locations, each acoustic receiver time-stamping a respective received acoustic sample using a system time, each acoustic receiver sending said time-stamped acoustic sample to a central controller, the central controller determining the location of the acoustic source in response to receiving the time-stamped sound source samples from the plurality of receivers.
摘要:
There are disclosed systems and methods for inferring “holes” in wireless communication coverage areas. These holes are determined based on the user's view of coverage at various locations within geographical areas covered by a broadcast signal. In one embodiment, the wireless coverage area is a cellular network and the holes are determined by actual cellular phone usage within the network. Location and direction of travel data pertaining to a cellular phone's usage is stored and refined within the cellular phone so as to define areas where the user selects to place calls or selects to terminate calls. The data stored within the mobile device is from time to time communicated to the central wireless broadcast system. By collecting such data from a plurality of such devices, the central system can map coverage holes from a user's perspective.
摘要:
Decimation of data from a fixed length queue retaining a representative sample of the old data. Exponential decimation removes every nth sample. Dithered exponential decimation offsets the exponential decimation approach by a probabilistic amount. Recursive decimation selects a portion of the queue and removes elements.
摘要:
A system and method is shown for determining the spatial boundary of certain measurable phenomena, such as broadcast signals, at various locations within geographical areas covered by the phenomenon. Data representing relative signal quality at various locations within the geographical area is created within a mobile device, such as a cell phone capable of receiving the phenomenon. The data is stored and refined within the device so as to define weak signal quality areas within at least a portion of the geographical area traveled by the mobile device. The refinement, which in one embodiment comprises coalescing and splitting stored data locations in the device allows for long storage periods by reducing memory requirements. By devoting the majority of memory to locations in the vicinity of the good/bad boundary, the most detailed picture possible of the boundary is achieved for a given amount of memory. By collecting such data from a plurality of such devices, a central system can map the signal strength over the entire geographical area.