175 results about "Reference variable" patented technology

A pulsed waveform welding operation is implemented by reference to a commanded wire feed speed set by an operator. The wire feed speed is set on a wire feeder, and a signal representative of the commanded wire feed speed is applied to a power supply. The power supply control circuitry references a look-up table in which pulsed waveform parameters are provided based upon wire feed speed. The parameters may include multiple parameters such as pulse frequency, peak current, background current, and current ramp rates. The control circuitry commands power conversion circuitry to generate the commanded waveform as a function of the commanded wire feed speed.

An image signal generation portion 11 generates an image signal of a variable frame-rate picked-up image. A signal generation control portion 24 drives the image signal generation portion 11 and generates image pick-up setting information IF to generate an image signal that is frame-synchronized with a generated image signal DVd. The generated image signal DVd is output in condition where the image pick-up setting information IF is inserted in it. When supplied with image pick-up setting information IFex, the signal generation control portion 24 controls the driving operations of the image signal generation portion 11 based on the image pick-up setting information IFex, to frame-synchronize the generated image signal with an image signal of a reference variable frame-rate picked-up image of a source that has supplied the image pick-up setting information IFex. If a plurality of image pick-up devices capable of varying a frame rate is used, the image signals can be frame-synchronized with each other.

A DC voltage converter and a method for converting a DC voltage into a plurality of output-side DC voltages are disclosed. A reference variable for a control loop is provided at one output, while a respective threshold value comparison is carried out at the other outputs. An energy store at the input of the DC voltage converter can be changed over to different output branches in a manner dependent on the threshold value comparison. The energy store is driven using the control loop. The proposed principle makes it possible, with a high degree of efficiency, to provide various DC voltages with little crossover influence between the outputs and, at the same time, with constant output voltages.

At least a portion of a plurality of formatting variables associated with an electronic document are modified based in part upon optimized formatting values. A user may specify values for one or more user-modifiable formatting variables. Based on the user data thus specified, at least a portion of the plurality of formatting variables are modified according to corresponding optimized formatting values. The electronic document is then formatted in accordance with the modified formatting variables and provided for display. The user-modifiable variables may comprise a font reference variable and / or a display form factor variable. In this manner, the present invention optimizes readability of electronic documents while still accommodating user preferences for displaying such documents.

The invention relates to a device for load limitation in a high lift system for aeroplanes, said system comprising individual segments (3, 4, 5, 6) of landing flap systems and slat flap systems, and a drive unit (7). The inventive device for load limitation comprises a control unit (23) that is connected to position sensors (15, 16, 17) and is embodied in such a way as to process signals from the position sensors and to generate a signal for limiting the supplied drive power. The invention also relates to a method for load limitation. According to said method, signals from at least two position sensors are measured; at least one reference variable is calculated from the measured signals; each reference variable is compared with a corresponding threshold value pre-determined from a maximum authorised load; and a control signal is generated for limiting the drive power, when at least one of the reference variables reaches or exceeds the threshold value.

Various components of the present invention are collectively designated as Analysis of Variables Through Analog Representation (AVATAR). It is a method, processes, and apparatus for measurement and analysis of variables of different type and origin. AVATAR offers an analog solution to those problems of the analysis of variables which are normally handled by digital means. The invention allows (a) the improved perception of the measurements through geometrical analogies, (b) effective solutions of the existing computational problems of the order statistic methods, and (c) extended applicability of these methods to analysis of variables. The invention employs transformation of discrete or continuous variables into normalized continuous scalar fields, that is, into objects with mathematical properties of density and / or cumulative distribution functions. In addition to dependence on the displacement coordinates (thresholds), these objects can also depend on other parameters, including spatial coordinates (e.g., if the incoming variables are themselves scalar or vector fields), and / or time (if the variables depend on time). Moreover, this transformation of the measured variables may be implemented with respect to any reference variable. Thus, the values of the reference variable provide a common unit, or standard, for measuring and comparison of variables of different natures, for assessment of mutual dependence of these variables, and for evaluation of changes in the variables and their dependence with time. The invention enables, on a consistent general basis, a variety of new techniques for analysis of variables, which can be implemented through various physical means in continuous action machines as well as through digital means or computer calculations. Several of the elements of these new techniques do have digital counterparts, such as some rank order techniques in digital signal and image processing. However, this invention significantly extends the scope and applicability of these techniques and enables their analog implementation. The invention also introduces a wide range of signal analysis tools which do not exist, and cannot be defined, in the digital domain. In addition, by the present invention, all existing techniques for statistical processing of data, and for studying probability fluxes, are made applicable to analysis of any variable.

Disclosed is a Bluetooth® moving picture stream transmission terminal for moving picture data stream transmission through Bluetooth® to a moving picture output device. The Bluetooth® terminal provides the moving picture output device with the optimized streaming service by either acquiring the transcoding reference variable according to decoding function included in the moving picture output device when the Audio Video Distribution Transport Protocol (AVDTP) channel of the moving picture output device is opened, or acquiring the transcoding reference variable by using the newly defined transcoding reference variable request / response message after opening the AVDTP channel, and by setting an encoding environment with reference to the acquired transcoding reference variable, and encoding the corresponding moving picture and transmitting stream of the encoded moving picture through Bluetooth®.

Various components of the present invention are collectively designated as Analysis of Variables Through Analog Representation (AVATAR). It is a method, processes, and apparatus for measurement and analysis of variables of different type and origin. AVATAR offers an analog solution to those problems of the analysis of variables which are normally handled by digital means. The invention allows (a) the improved perception of the measurements through geometrical analogies, (b) effective solutions of the existing computational problems of the order statistic methods, and (c) extended applicability of these methods to analysis of variables. The invention employs transformation of discrete or continuous variables into normalized continuous scalar fields, that is, into objects with mathematical properties of density and / or cumulative distribution functions. In addition to dependence on the displacement coordinates (thresholds), these objects can also depend on other parameters, including spatial coordinates (e.g., if the incoming variables are themselves scalar or vector fields), and / or time (if the variables depend on time). Moreover, this transformation of the measured variables may be implemented with respect to any reference variable. Thus, the values of the reference variable provide a common unit, or standard, for measuring and comparison of variables of different natures, for assessment of mutual dependence of these variables, and for evaluation of changes in the variables and their dependence with time. The invention enables, on a consistent general basis, a variety of new techniques for analysis of variables, which can be implemented through various physical means in continuous action machines as well as through digital means or computer calculations. Several of the elements of these new techniques do have digital counterparts, such as some rank order techniques in digital signal and image processing. However, this invention significantly extends the scope and applicability of these techniques and enables their analog implementation. The invention also introduces a wide range of signal analysis tools which do not exist, and cannot be defined, in the digital domain. In addition, by the present invention, all existing techniques for statistical processing of data, and for studying probability fluxes, are made applicable to analysis of any variable.

The invention relates to the field of detection of harmonious waves in power systems, in particular to a power system HHT harmonious wave detection method based on improved EMD end point effect. The method comprises the steps of selecting end points and extreme point as reference variables and comparing the relation of the end points and extreme point according to a signal boundary distorting phenomenon occurred in the EMD decomposition course, adopting a mirror image extension method to improve the end point effect, utilizing an improved mirror image method to perform EMD decomposition on the power system harmonious waves so as to obtain all of intrinsic mode function (IMF), utilizing Hilbert conversion to perform decomposition on the power system harmonious waves subjected to the EMD decomposition so as to obtain signal time-frequency characteristics. The power system HHT harmonious wave detection method facilities rapid detection of harmonious wave composition of the power system harmonious waves, accordingly improves the power system harmonious wave recognition capability and is suitable for power systems and relevant departments and used for power system harmonious wave detection.

Method for influencing noise, wherein a noise source (16), in particular an engine in a motor vehicle, generates the noise with a substantially periodically variable excitation, and wherein a reference variable which is characteristic of the noise source, in particular an engine speed, is present at predetermined successive supply instants (ti), comprising the method steps; reading out at least a first value (Ni−1) of the reference variable at a first supply instant (ti−1) and a second predetermined value at a second supply instant (ti); generating the reference signal (12) at least one instant (t) between the second supply instant (ti) and a third supply instant (ti+1) as a function of the first and second values that were read out; and sending the reference signal (12) to a device for actively influencing noise (11), which generates activation signals (13) for at least one actuator (14) as a function of the reference signal (12), wherein the at least one actuator (14) emits compensation sound, which interferes with the noise.

The method includes following steps: in both direction of up stream and down stream, the base station translates the QoS parameters of all connections relating to the terminal applying bandwidth into the reference variable of allocating bandwidth to allocate and dispatch total bandwidth for the terminals; in down stream direction, the base station makes reallocation for connections according to IEEE802.16 standard in term of acquired total bandwidth; in up stream direction, all terminals obtain the bandwidth allocation information based on taking base station as terminal, and make reallocation in their own bandwidth for connections.

It is described an arrangement for determining a target value of an operational variable of a wind turbine, the arrangement comprising: at least one input terminal for receiving at least one operational parameter of the wind turbine; a determining unit adapted to determine a target value of an operational variable of the wind turbine based on the operational parameter. Further, a corresponding method and a wind turbine are described.

The invention discloses a method for guaranteeing mobile peer-to-peer network stream media service experience quality, comprising a strategy action and a strategy variable, wherein the strategy action is used for describing an execution action of mobile P2P stream media QoE strategy management process, and the strategy is used for describing a reference variable in MP2P stream media QoE strategy management process; the strategy action comprises a buffer management strategy action, a node selection strategy action and a data invoke strategy action, and the strategy variable comprises a global strategy variable, a buffer management strategy variable, a node selection strategy variable and a data invoke strategy variable. The method is applied to a P2P stream media service in a mobile network, which can select and update QoE management strategy in real time according to dynamic change of mobile network environment, and effectively cope the influence to the stream media transmission quality from wireless channel quality dynamic change and node mobility so as to provide good QoE guarantee through self-adaptive QoE strategy management.

A numerical controller capable of performing path-table operations in a plurality of systems individually or synchronously, such that during a path-table operation in one system, a path-table operation or an operation according to NC statements can be selectively performed in another system. The plurality of systems are provided with their respective reference variables. It is selected whether the reference variable is set common or specific to each of the plurality of systems. During a path-table operation in one system, it is possible to command a path-table operation in another system to start a path-table operation thereof or to perform waiting of path-table operations in the plurality of systems. If the reference variable is set in common for all systems, path-table operations can be performed synchronously, and if the reference variable is set specific to each of the plurality of systems, path-table operations can be performed individually.

An object of the present invention is to provide a method and an apparatus which solve problems such as a measurement error due to air bubbles in a scattering method and a light-shielding method, count loss due to different elements and impossible measurement due to emulsification, and can easily and accurately measure the number, the particle size and the like of fine particles in a fluid at a low cost. A detection apparatus for fine particles in a fluid includes: a flow cell 10 which passes the fluid therein; an X-ray source 20 which irradiates a side face of the flow cell 10 with X-rays; an X-ray detector 30 that detects the intensity of transmission X-rays that the X-rays which have been emitted from the X-ray source 20 have been attenuated by due to the fine particles in the fluid; a fluorescent X-ray detector 40 which detects fluorescent X-rays that are emitted by the fine particles in the fluid due to the X-rays which have been emitted from the X-ray source; and a data processing device which discriminates between fine particles and air bubbles in the fluid based on the fluctuation amount from each reference variable of the intensity of the transmission X-rays and the intensity of the fluorescent X-rays, and calculates the number and the particle diameter of the fine particles.

A CSSX (Extended Cascading Style Sheets) file including non-CSS (Cascading Style Sheet) extensions is used to define and reference variables and inheritance sets. A CSSX file compiler determines a value of the defined variable, modifies the CSSX file by replacing all references to the defined variable with the value, and generates the CSS file from the modified CSSX file. The inheritance set is defined in the CSSX file and includes a reference to a previously defined CSS rule set. The CSSX file compiler defines a new CSS rule set as a function of the determined attributes included in the previously defined CSS rule set of the defined inheritance set and generates the CSS file including the newly defined CSS rule set.

Method and apparatus for the adjustment and automatic readjustment of the lamp in a microscope. The present invention is used for adjusting the lamp in a microscope. In the solution according to the invention, the tilting direction of the glass body relative to the lamp cap is marked at the lamp. The lamp cap is likewise marked for oriented insertion of the marked lamp so that the tilting direction of the lamp lies in direction of the optical axis of the collector after insertion. For adjusting, the collector-reflector unit is displaced in direction of the optical axis of the collector and the lamp cap is then oriented in vertical direction of the optical axis of the collector. For automatic readjustment, the lamp cap has an actuating drive. A reference variable is determined for the actuating drive by a control unit by evaluating lamp voltage or lamp current. The proposed solution can be applied in all devices in which an ultra-high pressure gas discharge lamp is to be moved into and / or maintained in a focus position.

A method is disclosed for the temperature stabilization of a direct-converting X-ray detector, including a detector surface having a semiconductor and being divided into a plurality of partial detector surfaces. During the irradiation of the detector surface, heat is generated in the semiconductor by electric power. Electric power generated in the semiconductor is kept constant for each partial detector surface at least during a heterogeneous and / or temporally variable irradiation of the detector surface by feeding-in power-adjusted additional radiation for each partial detector surface. A direct-converting X-ray detector is disclosed for the detection of X-rays. At least one control loop with at least one reference variable is embodied for the energy regulation of the additional radiation, which keeps the temperature in the semiconductor constant for each partial detector surface by keeping the electric power in the semiconductor constant by changing the energy of the additional radiation. A CT system is disclosed.

The present invention relates to control of a fan during which the power of the fan is determined from the characteristic curves of the fan motor, the operating parameters of the cooling system and the reference variables which are predefined in the form of temperature levels. The various temperature levels which are to be set have different associated characteristic curves for actuating the fan motor. If the reference variable for the control changes, this also means a change in the characteristic curves for actuating the fan motor. In order to prevent the fan motor from whining, the operation of the fan motor is kept constant for a settable minimum waiting time when the reference variable for the control of the fan changes. During this minimum waiting time, the operating parameters of the cooling system can, if appropriate, be adapted by means of other control mechanisms which are independent of the fan to the new reference variable to such an extent that it is no longer necessary to take measures with respect to the whining of the fan motor.

A method for operating a valve, in particular a fuel injector of an internal combustion engine of a motor vehicle, in which an auxiliary variable is obtained as a function of at least one electrical operating variable of an electromagnetic actuator driving a component of the valve, in particular a valve needle, and in which the auxiliary variable is checked for the presence of a predefinable characteristic. A reference variable which characterizes the operating behavior of the electromagnetic actuator is ascertained, the auxiliary variable is modified as a function of the reference variable to obtain a modified auxiliary variable, and the modified auxiliary variable is checked for the presence of the predefinable characteristic.

A release mechanism for a motor vehicle friction clutch for cooperation with a motor vehicle transmission having subdivided switching steps. The mechanism includes a release member displaceable by a compressed air for carrying out a clutch release process, a valve arrangement for selectively supplying the compressed air, and a measurement arrangement for detecting an actual release position of the release member. The valve arrangement carries out the application of pressure fluid to the release member in accordance with (1) a reference variable provided by an actuation arrangement and which represents a reference release position of the release member, and (2) the detected actual release position. The measurement arrangement is so constructed that when the detected actual release position exceeds a predetermined switching threshold release position, a shifting signal is provided for shifting the transmission in subdivided switching steps.

The invention relates to a device for load limitation in a aircraft high lift system, said system comprising individual segments of landing flap systems and slat flap systems, and a drive unit. The inventive device for load limitation comprises a control unit that is connected to position sensors and is embodied in such a way as to process signals from the position sensors and to generate a signal for limiting the supplied drive power. The invention also relates to a method for load limitation. According to said method, signals from at least two position sensors are measured; at least one reference variable is calculated form the measured signals; each reference variable is compared with a corresponding threshold value pre-determined from a maximum authorized load; and a control signal is generated for limiting the drive power, when at least one of the reference variables reaches or exceeds the threshold value.

The invention relates to an automobile dynamic parameter measuring method based on double global positioning and inertia measurement, and belongs to the technical field of automobile parameter testing. Two global positioning modules and an inertia measurement module are arranged on an automobile body, and are used to together finish measurements of a side slip angle beta of the automobile body, aside acceleration ay 1 which is caused by a swerving of the automobile body, a heading angle psi of the automobile body, a side dip angle phi of the automobile body, a lateral acceleration ay1 at thecentroid position of the automobile body, a longitudinal acceleration aX at the centroid position of the automobile body, a yaw rate r at the centroid position of the automobile body and a side dip angle p at the centroid position of the automobile body. According to the automobile dynamic parameter measuring method based on the double global positioning and inertia measurement, measured dynamic parameters can be used as reference variables of a control of preventing automobile rollover, and the safety of automobile operation can be improved.

The invention discloses a method of identifying slip factors causing slope instability by utilizing displacement monitoring. The method of identifying the slip factors causing the slope instability by utilizing the displacement monitoring includes the following steps: step one, the number of to-be-tested slopes, the number of samples of the slopes, and slope elements in a to-be-test area are determined; step two, slope displacement monitoring foundation pile points are arranged, displacement monitoring datum points are selected to form a slope displacement monitoring control net; step three, optical fiber monitoring displacement number equipment and equipment monitoring of the displacement monitoring datum points are arranged; step four, quantified slip factors and qualitative slip factors causing the slope instability are determined; step five, reference variable, namely slop displacement statistical magnitude is determined; step six, a prediction equation of relevancy of the slip factors causing the slope instability is set up; step seven, the prediction accuracy of the prediction equation of relevancy of the slip factors causing the slope instability is calculated; and step eight, the contribution and influence degrees of each slip factor to the slope instability are analyzed. The method of identifying the slip factors causing the slope instability by utilizing the displacement monitoring achieves the conversion from qualitative variable to quantitative variable, and resolves the problem of mutual conversion of multiple correlations among the factors.

The invention discloses an intelligent power grid data encryption method with forward security. The method comprises the following steps: a control center registers an aggregation gateway after receiving a registration request sent to the control center by the aggregation gateway, a public key K used for encrypting plaintext data is sent to the aggregation gateway; the aggregation gateway registers the intelligent electric meter after receiving a registration request sent to the aggregation gateway by the ith intelligent electric meter Ii, sends a public key K to the intelligent electric meter; a counter j=0 is set, whether j is less than or equal to a time period T is judged; and if yes, the ith intelligent electric meter Ii selects the ID number of the ith intelligent electric meter Ii and generates a random number ti,j, calculates and discloses a time reference variable Ri,j according to the random number ti,j, and sends the random number ti,j, the ID number IDi of the ith intelligent electric meter Ii and the time reference variable Ri,j to the control center. According to the invention, the signature private key is updated in a fixed time period, the forward security of signature information is ensured, and the aggregation and verification of digital signatures are completed without using bilinear pairs.

The invention relates to a method for quickly recognizing a face, and the method comprises the steps: (1), extracting face key feature points, and constructing a standard feature vector; (2), selecting a plurality of features in the standard feature vector as reference variables, carrying out the segmenting, and carrying out the binary coding; (3), carrying out the PCA dimension reduction processing of each block, forming a plurality of blocks after dimension reduction, and naming a plurality of corresponding blocks through the codes of the blocks; (4), reading a to-be-detected face image, extracting the to-be-detected face key feature points, and constructing a standard feature vector; (5), carrying out the binary coding of the standard feature vector, and searching the corresponding blocs according to the codes after dimension reduction; (6), carrying out the PCA dimension reduction processing of the to-be-detected face image; (7), determining the similarity between the to-be-detected face image and the images of each type in the blocks: determining that the to-be-detected face image and the image of the type belong to the same person if the similarity exceeds a set threshold value, and completing the recognition process.

The present invention provides a device and a method for the residual analysis of a residuum to detect system errors in the system behaviour of an aircraft. The device for the residual analysis of a residuum comprises an apparatus to generate the residuum at least dependent on the reference variable and the system output variable, a comparator unit to provide an analytical result by comparing the residuum to a given threshold, a first unit to provide a constant threshold portion, a second unit to provide an adaptive threshold portion at least dependent on the reference value, which can change over time, and a third unit to provide the threshold by linking the constant threshold portion to the adaptive threshold portion.

A reference variable having a linear relationship with the angular position of a master axis is set, and a correspondence between this reference variable and the displacement of a slave axis is stored in a data table. One execution stage is specified by setting a starting reference variable and an ending reference variable from this data table. A desired sequence is assigned to a plurality of execution stages thus specified. The reference variable corresponding to the angular position of the master axis is determined, slave axis displacement data corresponding to the reference variable is read out, and the slave axis is positioned in accordance with the position of the master axis on the basis of this displacement data.