摘要:
Systems and methods for automated fault detection in a building management system are shown and described. The systems and methods further involve organizing the data set into bins, each bin containing a plurality of the observed points for the variable of the building management system. The systems and methods further involve calculating, for each bin, a target parameter and an estimator of scale for the observed points. The systems and methods further involve detecting, for each bin, an outlier of the building management system by comparing a data point of the bin to the calculated target parameter and estimator of scale for the bin.
摘要:
Systems and methods for automated fault detection in a building management system are shown and described. The systems and methods further involve organizing the data set into bins, each bin containing a plurality of the observed points for the variable of the building management system. The systems and methods further involve calculating, for each bin, a target parameter and an estimator of scale for the observed points. The systems and methods further involve detecting, for each bin, an outlier of the building management system by comparing a data point of the bin to the calculated target parameter and estimator of scale for the bin.
摘要:
An antenna for broadband satellite communication including an array of primary horn antenna elements which are connected to one another by a waveguide feed network.
摘要:
A moveable gate for infants or dogs is used in doorways, hallways, stair landings and other household positions to provide a safe barrier for the child or dog. The gate, formed of a flexible material which pulls out of a housing in the manner of a window shade, has a jamb mounting at the housing end and a latch at the extended end of the curtain-like barrier. Both are releasable from a fixture which attaches to the door jamb, wall or stair rail post, so that the infant gate can be quickly released and moved to another location in the house where additional such jamb mountings are attached or to another house which has similar door jamb pieces installed. Important features are the manner in which the gate latches, a mechanism for tightening the curtain-like barrier into a nearly solid gate after it has been latched, and childproof devices for releasing tension in the gate when it is to be retracted.
摘要:
An antenna for broadband satellite communication including an array of primary horn antenna elements which are connected to one another by a waveguide feed network.
摘要:
Transport apparatus is provided for heavy duty equipment which allows for the interchangeable connection of the caterpillar power drive units used for transport of a plurality of supporting frames holding different pieces of heavy equipment. A lesser number of expensive drive units is required for moving a lot of equipment. This is achieved by providing separate support bases or feet for each of the supporting frames. Each of the bases include a mechanism for lifting the supporting frames so that the power drive units can move under the supporting frame being transported. Also, each of the caterpillar power drive units include a connector device for connection to the supporting frame to be supported. Each connector device, in turn, includes hydraulically operated arms for relative vertical displacement between the drive unit and the support frame and universal relative horizontal displacement. In addition, electrical, mechanical or other connections are provided between the several power units to coordinate movement direction, steering, and the relative torsional effects of the various units on the supporting frame.
摘要:
A threaded fastener having a self tool movable from an operable position to an out-of-the-way position which includes a threaded shaft, a laterally expanded head having a cavity beneath it surrounding the shaft, holes in either side of the expanded head, a D-ring having its opposite ends in the holes through the sides of the head, and an elastomeric ring such as an O-ring surrounding the threaded shaft and extending partly into the cavity so that when the threaded fastener is screwed into a threaded opening to receive it the O-ring is forced into the cavity when the fastener is tightened providing enough friction to hold the D-ring in its out-of-the-way position. If the object being held with the threaded fastener has a circular cavity having a diameter greater than the diameter of the D-ring, the D-ring, in its out-of-the-way position, will also lie in that recess where it will not interfere with the use of the object being held with the threaded fastener.