37results about How to "Reduce the amount of error" patented technology

Root cause analysis is augmented by providing optimized inputs to root cause analysis systems or the like. Such optimized inputs can be generated from causality graphs by creating sub-graphs, finding and removing cycles, and reducing the complexity of the input. Optimization of inputs enables a root cause analysis system to reduce the number of iterative cycles that are required to execute probable cause analysis, among other things. In one instance, cycle removal eliminates perpetuation of errors throughout a system being analyzed.

A method for using visual marker point to locate the 3D object to be connected includes such steps as creating a coordinate system of probe by 4 marker dots, determining the coordinate of probe tip in the coordinate system, calculating the relation between the coordinate systems of world and probe, and coordinate transforming to obtain the coordinate information of probe tip in world coordinate system.

A method and apparatus for monitoring a configuration of satellites to maintain integrity of LTO information in a GNSS receiver of a GNSS or other positioning system is described. The method may include obtaining broadcast ephemeris transmitted from at least one satellite of a constellation of satellites; comparing the broadcast ephemeris to long-term-orbit information available to a global-navigation-satellite receiver; and causing the global-navigation-satellite receiver to not use the long-term-orbit information when the long-term-orbit information does not correspond to the broadcast ephemeris.

A linear position sensor having a transmitter coil which generates electromagnetic radiation when excited by a source of electrical energy and wound in a first direction. A receiver coil is contained within the transmitter coil and the receiver coil includes both a first loop wound in a first direction and a second loop wound in the opposite direction. A coupler element linearly moves along a first direction relative to the transmitter coil which varies the inductive coupling between the transmitter coil and the receiver coil as a function of the linear position of the coupler element to thereby vary the electrical output signal from the receiver coil when excited by the transmitter coil. The first and second loops of the receiver coil are linearly aligned with each other along the first direction.

An image forming device to which can be installed an image forming material cartridge which contains an image forming material, and which has a non-volatile memory from which data can be read and to which data can be written, includes a counter which approximately counts the image forming material usage amount of the image forming material cartridge, and generates an image forming material usage amount count; a state detector which detects a predetermined state in which it is inferred that the amount of the image forming material in the image forming material cartridge is low; a storage unit which stores amount of change information which specifies the amount of change of the image forming material usage amount count from the time point that the predetermined state was detected until the present in the non-volatile memory of the image forming material cartridge; and a determination unit which determines whether or not the image forming material cartridge is a refilled product, based upon the amount of change of the image forming material usage amount count and upon a first threshold value.

P41202191PCT00 2012-08-3 20 ABSTRACT: The invention relates to a data collection and monitoring system for a defined space (1) within a public or commercial facility, comprising: a plurality of sensors (5a, 7a, 9a, 10a, 11) of which at least one sensor (5a, 7a, 9a) is arranged for monitoring the level of a consumable in connection with said space (1); and a data collecting unit (12) arranged for wirelessly communicating with said sensors (5a, 7a, 9a, 10a, 11) and furthermore arranged for communicating with a central server (14) associated with a storage medium (15). The storage medium (15) is adapted for storing and monitoring data related to said space (1). The invention is arranged so that said data collecting unit (12) is arranged for minimizing the amount of data transmitted, by transferring data from said sensors (5a, 7a, 9a, 10a, 11) to said central server (14) upon a status change of at least one of said sensors (5a, 7a, 9a, 10a, 11).

The invention provides a testing method of content of rubber in dandelion rubber grass, comprising the following steps: preparing a sample of a standard substance of dandelion rubber, making a standard curve, testing the sample to be tested, and calculating the rubber content. First the standard substance of the dandelion rubber is prepared and a calibration substance after splitting is determined, a pyrolysis temperature of a pyrolysis instrument and a programmed temperature of a gas chromatograph are set, and the standard substance is put into a pyrolysis gas chromatography-mass spectrometerfor sample testing, after the sample is tested, a chromatogram is obtained, and the standard curve is made by using the peak area of the calibration substance; and then the actual sample to be testedis put into a pyrolysis gas chromatograph for measurement, and the peak area of the calibration substance of the actual sample is substituted into the standard curve to acquire the rubber content ofthe actual sample. The testing method provided by the invention has good repeatability and high accuracy, and can be used for rubber content detection of the dandelion rubber grass.

A peak detector including an input circuit with five same-sized transistors, in which four of the input transistors are coupled in parallel between a control node and a bias node and receive a corresponding one of two in-phase signals and two quadrature signals. The fifth transistor is coupled between a current node and the bias node and has its control terminal coupled to an output node. A bias circuit establishes a predetermined bias current that flows through the five input transistors. A current mirror mirrors the current through the fifth transistor from the current terminal into the four parallel-coupled input transistors via the control node. An output circuit charges a peak capacitor based on voltage developed at the control terminal of the fifth transistor. The peak detector is low power and compact and detects the actual peak of the input signal with greater accuracy compared to a conventional peak detector.

The invention discloses an electric spindle reliability test device based on synchronous hydraulic cylinder drive loading. The device comprises a main shaft clamping part, a loading unit part, a loading unit supporting part, a main radial loading part, an axial loading part and a torque loading part, the main shaft clamping part comprises a dowel bar; the loading unit part comprises a loading unitmain body and spherical grooves from No.1 to No.5; the loading unit supporting part comprises a first loading head; the main radial loading part comprises a No.2 loading head; the axial loading partcomprises loading heads from No.3 to No.5; and the torque loading part comprises a hydraulic pump and a torque transmission testing device. the electric spindle reliability test device is suitable fortwo common spindles in the reliability test of the numerically-controlled machine tool spindle, the test cost is reduced, and the device has universality; and axial, radial and torque loading can becarried out in a sequential, and separate and synchronous loading manners are performed, which is closer to the actual working condition of the main shaft, so that the steps of disassembling and assembling the test bed due to different loading are reduced, and the time is saved.

The invention discloses a control device for preventing duct piece staggering and shield tail postures for a tunnel boring machine (TBM). A plurality of the control devices are uniformly distributed on an excircle surface of a shield tail at the rear part of a shield tail brush in a manner of surrounding the axis of the shield tail; each control device comprises a streamline wear-resisting plate,a shield body posture adjusting oil cylinder, an oil cylinder connecting plate and a pipe piece supporting plate; the upper surface of the oil cylinder connecting plate is stopped in the shield tail through the shield tail outer shell; the upper surface of the duct piece supporting plate is an arc-shaped concave surface; the circle center of a circle defined by the upper surfaces of all the duct piece supporting plates coincides with the circle center of the cross section of the shield tail; the bottom of the duct piece supporting plate is hinged to the telescopic rod end of the duct piece posture adjusting oil cylinder, and the hinged point of the duct piece supporting plate and the telescopic rod end of the duct piece posture adjusting oil cylinder coincides with the symmetric center line of the arc inward-concave face of the upper surface of the duct piece supporting plate.

The invention discloses a ship-borne three-axis antenna satellite automatic tracking method, and relates to the technical field of ship-borne antenna control. Signals of a target satellite are received through antenna feeder information, two groups of periodic signals with a certain time interval are obtained, and the two groups of periodic signals are respectively sent to the main processing module and the positioning processing module for processing. The main processing module and the positioning processing module are combined with a pre-measured signal voltage amplitude and a modulation degree caused by a unit error angle to obtain two groups of angle errors, and the two groups of obtained angle errors are combined to obtain a final adjustment angle; the embodiment of the invention further provides a corresponding automatic tracking system and device and a storage medium, the calculation amount in the ship-borne antenna angle control process can be effectively reduced, meanwhile, the calculation precision of angle adjustment is effectively improved, and therefore the control efficiency of the ship-borne antenna is improved.

A novel damping bearing block mechanism comprises a double-layer stereoscopic rectangular guard frame, the double-layer guard frame is mounted on a base and fixed by hinge pins, a bearing is mounted in an inner cavity of the double-layer guard frame and connected with a double-position spherical shaft sleeve, the bearing, the double-position spherical shaft sleeve and a silicon fiber damping ring are combined and are mounted in a hole of the base, and a double-body shielding cover is mounted on the base by bolts. The novel damping bearing block mechanism has the advantages that a damping effect is good, errors are fewer, the service life is long, and a fit clearance between a slender shaft and the bearing is rarely abraded.

The invention relates to the technical field of road surface construction, discloses a fabricated rapid repairing method for a building pavement, and solves the technical problem that the influence on normal traffic is large due to the fact that the current road blocking time is too long. The method comprises the following repairing steps: S1, detecting the thickness of an existing road surface structure layer by utilizing an ultrasonic pulse wave method to realize nondestructive detection; S2, designing a fabricated cement concrete prefabricated part; S3, performing high-precision prefabrication on the fabricated pavement slab prefabricated part; S4, hoisting, leveling and installing the fabricated pavement slab prefabricated part; S5, performing grouting on the slab bottom of the fabricated pavement slab prefabricated part; S6, connecting joints between the adjacent fabricated pavement slab prefabricated parts; and S7, laying a layer of ultra-thin wearing layer material on the surface of the fabricated pavement slab prefabricated part. According to the technical scheme, the purpose of shortening the road blocking time is achieved by utilizing a newly designed rapid repairing method.

The invention discloses a method for measuring the rotational inertia of a steam turbine generator set. On the basis of the technical way of sinusoidal wave counting of a local rotating disk gear recording signal, 1-ms-level high-precision dynamic rotor rotating speed is calculated and then the rotational inertia of a steam turbine generator set is calculated based on the rotating speed. Therefore, an overcome of large dynamic rotating speed error in the conventional rotating speed measurement method is overcome. The employed instruments and equipment are conventional ones and the employed data processing software is conventional function software. The method has advantages of clear physical concept, simple operation, and high measurement accuracy.