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41 results about "Absolute threshold" patented technology

In neuroscience and psychophysics, an absolute threshold was originally defined as the lowest level of a stimulus – light, sound, touch, etc. – that an organism could detect. Under the influence of signal detection theory, absolute threshold has been redefined as the level at which a stimulus will be detected a specified percentage (often 50%) of the time. The absolute threshold can be influenced by several different factors, such as the subject's motivations and expectations, cognitive processes, and whether the subject is adapted to the stimulus. The absolute threshold can be compared to the difference threshold, which is the measure of how different two stimuli must be for the subject to notice that they are not the same.

Utility diagnosing equipment, operational program therefor, and utility diagnosing method

A utility diagnosing equipment can recognize an abnormality or a normality in a plurality of utilities of an identical type, which would not be recognized when an absolute threshold is set. The equipment accepts state values from the plurality of utilities, sets an average value of the state values of each utility to a proxy value, finds a relative value between the state value of each utility and the proxy value thereof, and displays the relative value for each utility. The relative values of the utilities exceeding a predetermined threshold is highlighted.
Owner:HITACHI LTD

Cell reselection method between networks of different systems

The invention provides a cell reselection method between networks of different systems, comprising the following steps of measuring a first network cell signal intensity and a second network cell signal intensity by using user equipment residing on a first network cell; reselecting the user equipment to a second network cell after Srxlev (Srxlevel) of the first network cell is less than an absolute threshold of the first network cell Qrxlevmeas of the second network cell is more than an absolute threshold of the second network cell and a reselection delay time duration is sustained; and finitely selecting a cell with the best signal intensity for reselection while multiple cells in the second network satisfy the condition. According to the method, the absolute threshold is introduced, therefore, the UE can residue on a certain network, as long as when a resident network receiving signal is less than a certain tolerance value, the UE can be reselected to another network without influencing the residing on the current network due to the signal intensity of the another network, the standby time of a UE terminal is effectively prolonged, and business service continuity is increased.
Owner:西安新邮通信设备有限公司

Muti-path detecting method for CDMA communication system

During the system running stage, this method calculates at real time the absolute threshold of the super strong path (SSP), reads the relative threshold of the system design stage, judges the SSP. If the multipath energy is greater than the absolute energy threshold and the ratio of multipath recent energy to historical energy is greater than the ratio threshold n, and if the multipath energy is greater than the energy of the adjacent path by 1 / 2 code bit, then judges it as a SSP and adopts a new SSP filter coefficient to realize the IIR filter against SSP. According to the power delay function after filtering, this method calculates the multipath threshold, makes multipath selection and completes the multipath management post-processing. Comparing with the recent technique, the multipath testing method introduces a SSP multipath test method against the multipath searching progress. The method improves feature of demodulation and the method is proved in practical system testing.
Owner:ZTE CORP

Methods and systems for real-time monitoring of the insulation state of wind-powered generator windings

The invention provides methods and systems for real-time monitoring of the insulation state of wind-powered generator windings comprising the following steps: a) capturing in real-time, during a predetermined time period (in situations where the generator is synchronized to the electrical network but is not yet couplet thereto as well as in situations where the generator is producing energy) the values of one or more electrical and vibration variables of the generator; b) obtaining in real-time, the temporal evolution of the vibration and of the inverse components of electrical variables at one or more predetermined frequencies; c) identifying a possible generator insulation fault when the inverse component of at least one electrical variable and / or one vibration at a predetermined frequency exceeds an absolute threshold or a temporal increase threshold pre-sets.
Owner:SIEMENS GAMESA RENEWABLE ENERGY INNOVATION & TECHOLOGY SL

Cell switching control method, user equipment and radio network controller

The invention provides a cell switching control method. An RNC (radio network controller) distributes a first cofrequency event report threshold and / or a second cofrequency event report threshold. UE (user equipment) sends a first measurement report message to the RNC according to RSCP of a cofrequency adjacent cell of a present cell, the first cofrequency event report threshold and a first cofrequency event retardation parameter. The UE sends a second measurement report message to the RNC according to the RSCP of the cofrequency adjacent cell of the present cell, the second cofrequency event report threshold and a second cofrequency event retardation parameter. The RNC controls switching between cells according to the first measurement report message and / or the second measurement report message. The invention also provides the UE and the RNC. By employing the cell switching control method, the UE and the RNC provided by the invention, only when the communication quality of the cofrequency adjacent cell of the present cell is higher than an absolute threshold, reporting is triggered, that the communication quality of a switched cell is in accordance with a communication requirement is ensured, and cell switching success rate is raised.
Owner:TD TECH COMM TECH LTD

Cable partial discharge concentration point detection method and system

ActiveCN105334439AAutomatically and accurately judge and locateResolve inaccuraciesTesting dielectric strengthAbsolute thresholdGravity center
The invention provides a cable partial discharge concentration point detection method and system. The cable partial discharge concentration point detection method comprises the following steps: dividing a cable to be detected into a plurality of statistical intervals; if the quantity of partial discharge points in the statistical intervals is no less than a pre-set relative threshold value of the quantity of the discharge points, counting up the quantity of the partial discharge points with the partial discharge amount, which is greater than a relative threshold value of a pre-set discharge amount, in the statistical intervals; when the quantity of the partial discharge points with the partial discharge amount, which is greater than the relative threshold value of the pre-set discharge amount, is more than an absolute threshold value of the pre-set quantity of the discharge points, judging partial discharge concentration points in the statistical intervals and acquiring that the positions of the partial discharge concentration points are gravity centers of the positions of the partial discharge points with the partial discharge amount, which is greater than the relative threshold value of the pre-set discharge amount; otherwise, judging that the statistical intervals have no partial discharge concentration points. The cable partial discharge concentration point detection method and system can be used for automatically and accurately judging and positioning the positions of the partial discharge concentration points on the cable to be detected and the accuracy problem of the detection of the partial discharge concentration points can be effectively solved.
Owner:YUNNAN POWER GRID CO LTD KUNMING POWER SUPPLY BUREAU

Radiation safety interlock system device for on-line monitoring of electron energy threshold

PendingCN109922593AOperation impactTo achieve the effect of radiation safety protectionLinear acceleratorsMicrowaveControl system
The invention discloses a radiation safety interlock system device for on-line monitoring of an electron energy threshold in an electron linear accelerator. The device comprises a microwave acquisition system, a microwave amplitude-phase monitoring system, a quick comparison circuit and a microwave source control system. According to the device, the electron energy threshold in the electron accelerator can be monitored online in real time and fed back in real time, when the electron energy exceeds a certain threshold, the accelerator system is subjected to radiation safety interlock, so that an effect of radiation safety protection is achieved. The device has the advantages of absolute threshold control, real-time online monitoring, no influence on accelerator operation, and fast system reaction time up to 100 ns.
Owner:DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI

Equipment alarm level obtaining method and calculating equipment

The invention discloses an equipment alarm level obtaining method and calculating equipment; the method comprises the following steps: obtaining characteristic indexes with the index amplitude exceeding an absolute threshold from all equipment characteristic indexes, thus forming a first index set; aiming at each characteristic index in the first index set, and determining the first alarm level ofeach characteristic index according to the index type of the characteristic index; obtaining characteristic indexes with the index amplitude exceeding a corresponding real time threshold from all equipment characteristic indexes, thus forming a second index set; aiming at each characteristic index in the second index set, if the characteristic index type is a super index and the index amplitude does not exceed the absolute threshold, determining the characteristic index over-limit type so as to determine the corresponding second alarm level; determining the characteristic index correspondingthird alarm level according to the trend form of each characteristic index in the second index set; determining the equipment alarm level according to each first alarm level, second alarm level and third alarm level.
Owner:ANHUI RONDS SCI & TECH INC CO

Power utilization safety early-warning method for intelligent distribution box

The invention discloses a power utilization safety early-warning method for an intelligent distribution box. The method comprises the steps of step 1, collecting a real-time current value I on the incoming line of the distribution box, and calculating a current effective value Ia; step 2, acquiring a real-time voltage value U on an incoming line of the distribution box, and calculating a voltage effective value Ua; step 3, setting an absolute threshold value of the real-time current value I, an absolute threshold value of the real-time voltage value U, an effective threshold value of the current effective value Ia and an effective threshold value of the voltage effective value Ua; step 4, carrying out overcurrent protection early-warning on the real-time current value I and the current effective value Ia, carrying out overcurrent protection when the real-time current value I or the current effective value Ia exceeds a corresponding threshold value, cutting off a power supply, and sending out early-warning; and step 5, performing bidirectional over-limit protection early-warning on the electric signal on the line. The technical problem that line fault early-warning is not in time issolved.
Owner:SUZHOU LUZHIYAO TECH

Cell switching control method, user equipment and radio network controller

The invention provides a cell switching control method. An RNC (radio network controller) distributes a first cofrequency event report threshold and / or a second cofrequency event report threshold. UE (user equipment) sends a first measurement report message to the RNC according to RSCP of a cofrequency adjacent cell of a present cell, the first cofrequency event report threshold and a first cofrequency event retardation parameter. The UE sends a second measurement report message to the RNC according to the RSCP of the cofrequency adjacent cell of the present cell, the second cofrequency event report threshold and a second cofrequency event retardation parameter. The RNC controls switching between cells according to the first measurement report message and / or the second measurement report message. The invention also provides the UE and the RNC. By employing the cell switching control method, the UE and the RNC provided by the invention, only when the communication quality of the cofrequency adjacent cell of the present cell is higher than an absolute threshold, reporting is triggered, that the communication quality of a switched cell is in accordance with a communication requirement is ensured, and cell switching success rate is raised.
Owner:TD TECH COMM TECH LTD
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