66 results about "Quality of control" patented technology

In a cellular system, each mobile station concurrently linked to plural link base stations in soft handover state and receiving packet from the packet-transmitting base station controls a transmission power of an up-link dedicated physical channel based on a first transmission power control information included in down-link dedicated physical channels of the link base stations. In other state, the mobile station controls the transmission power based on a second transmission power control information included in a down-link dedicated physical channel of the packet-transmitting base station. This accelerates the power increase up to a target power level causing that the measured signal-to-interference-ratio at the packet-transmitting base station reaches a target signal-to-interference-ratio, thereby improving receiving quality of control signal from the mobile station at the packet-transmitting base station.

A method for calibrating a mass flow controller comprising a calibrating valve disposed on the most upstream side of a path, a mass flow rate control valve mechanism, a tank provided at the path on the upstream side of the mass flow rate control valve mechanism, a mass-flow-rate-sensing means, a pressure-sensing means, a means for controlling the mass flow rate control valve mechanism, and a mass flow rate calibration control means, the method comprising the steps of (1) permitting a fluid at a set mass flow rate to flow through the path, (2) setting the mass flow rate control valve mechanism at a degree of opening that the mass flow rate of the fluid is equal to the set mass flow rate, (3) closing the calibrating valve, (4) measuring the pressure and mass flow rate of the fluid after a fluid flow from the tank is stabilized, (5) determining a variation ratio of the pressure and mass flow rate to reference pressure and mass flow rate measured by the same procedures in an initial state, is and (6) performing calibration depending on the variation ratio.

A system and method for controlling a flow of a fluid using a multi-mode control algorithm is described. The method includes disengaging and engaging a feedback control loop that controls a valve of the mass flow controller based upon a rate of pressure change of the fluid. The method also includes calculating a valve position of the valve based on pressure measurements when the feedback control loop has been disengaged and characterization data that characterizes the mass flow controller, and determining, when the feedback control loop is first re-engaged, a difference between a measured flow rate and a flow set point. An adjustment to the characterization data is applied based upon the difference to improve an accuracy of the calculation of the valve position when the feedback control loop is disengaged again.

A mass flow controller arranged to perform mass flow test operation in the controller itself by incorporating a test tank. The mass flow controller is provided, in a channel (6) for feeding fluid, with a means (8) for detecting the mass flow rate of fluid flowing through the channel and outputting a flow rate signal, and a mechanism (10) for controlling the mass flow rate by varying the valve opening by a valve drive signal, and comprises a means (18) for controlling the flow rate control valve mechanism based on an external flow rate setting signal and the flow rate signal. The flow channel is provided with a test valve section (42) for opening/closing the channel, a test tank section (44) having a specified capacity, and a means (46) for detecting the fluid pressure and outputting a pressure detection signal. A test control means (48) controls mass flow rate test operation to be carried out using the test valve, the test tank section and the pressure detecting means.

The invention provides an edge computing node selection method and system in a time delay sensitive network, and the method comprises the steps: firstly, setting service priorities of time delay sensitive businesses based on a control quality requirement; secondly, in an initial edge calculation node selection stage, according to the priority sequence, enabling a software-defined network controller to select edge computing nodes according to a time delay priority principle on the basis of guaranteeing each service QoC based on the acquired control type service quality requirements, network topology and idle resource conditions of the edge computing nodes; finally, during the process of unloading calculation tasks, a calculation task enabling a software-defined network controller to pre-estimate current control-type business QoC based on the current network topology information sensed in real time and idle resource state of the edge nodes. When AoC of certain business is lower than expected threshold, new edge calculation nodes are selected instantly. The business are guided to new edge computing nodes through routing reconfiguration, thereby practically guaranteeing the QoC ofthe control-type business.

A method to assess signal transmission quality and the adjust method thereof are proposed. First, different time points of a control signal at a receiving end are acquired and the number of signal transition in a predetermined time interval is counted. Next, the number of signal transition is recorded and compared to obtain a comparison result. The quality of control signal is then determined based on the comparison result. Besides, the parameter setting of the receiving end is adjusted according to the quality of the control signal received by the receiving end to get a better performance setting.

A re-selection method reduces time needed to switch a packet data session from a first packet data channel in one cell to a second packet data channel in another cell. While the mobile station is engaged in a packet data session on the first packet data channel, it monitors the channel quality of control channels in adjacent cells. During the packet data session, the mobile stations reads at least part of the broadcast information on the adjacent control channels before the re-selection decision is made and identifies potential re-selection candidates. When certain predetermined criteria are met, one or more of the adjacent control channels are identified as potential re-selection candidates and the mobile station switches to a new packet data channel in the selected cell. Because the mobile station has previously read the broadcast information in the selected cell, it can immediately acquire service of the new packet data channel.

The invention discloses a preparation method of quality control serum for quality control of centrifugal microfluidic chips. The method comprises the following steps: adding 0.6 to 1.0 percent of cholesteryl sodium sulfate into bovine plasma, and adding 0.02 to 0.06 percent of monopotassium phosphate; sequentially adding 0.04 to 0. 08 percent of ammonium ferric sulfate dodecahydrate, 0.5 to 0.9 percent of calcium chloride, 0.2 to 0.6 percent of bitter salt, 0.6 to 1 percent of urea, 9 to 13 percent of sodium chloride, 0.01 to 0.03 percent of zinc vitriol, 0.01 to 0.03 percent of chalcanthite,0.06 to 0.2 percent of glycocholic acid, 2 to 4 percent of glucose, 0.03 to 0.06 percent of creatinine, 0.08 to 0.2 percent of uric acid, and 0.07 to 0.11 percent of triolein into water; uniformly mixing obtained solution; adding glycol, saccharose and triton X-100, and uniformly mixing; sequentially adding albumin bovine serum, sodium azide, alanine aminotransferase, aspartic transaminase, alkaline phosphatase, lipase and creatine kinase, uniformly mixing, and performing freeze drying. The method has the advantages that the source of the raw materials is sufficient, the raw materials are easyto get, possible matrix effect is furthest avoided, and precipitation of the raw materials is prevented.

A quality control method using a plurality of analyzers and a control device connected to the analyzers via a network, the method comprising: (a) measuring quality control samples by the analyzers; (b) collecting a plurality of quality control data obtained by measuring the quality control samples; (c) implementing a quality control by the control device based on the collected quality control data; (d) obtaining uncertainty of measurement of analyzer based on uncertainty of analyzer calibration and the quality control data; (e) outputting a result of the quality control; and (f) outputting the uncertainty of measurement is disclosed. A quality control system and an analyzer are also disclosed.

A method and a device for controlling the quality during the production of an extruded polymer product from a synthetic intermediate product. The production of the polymer product takes place continuously in several successive process steps; whereby a process parameter and/or a product parameter is/are detected in at least one of the process steps and is/are compared with a target value or target value range. A quality signal for determining the quality of the polymer product and/or a control signal for controlling one of the process steps is generated in accordance with this comparison. According to the invention, a measuring time and a throughput time are assigned to the process parameter and/or the product parameter, the throughput time characterizing the current material flow for the respective process step up to the production of the finished polymer product. Changes in quality can thus be identified in advance and can be taken into account for statistical process control.

The invention discloses a method for reporting channel quality of a control area and a method and device for configuring a control channel, wherein the method for reporting the channel quality of the control area comprises the steps of: measuring the channel quality of the control area; and reporting the measured result of the channel quality to a network side, or reporting the number of control channel elements (CCE) used by a control channel, wherein the number is obtained through mapping according to the measured result. The method for configuring the control channel comprises the steps of: receiving the measured result information of the channel quality of the control area or the number information of the CCE, reported by a terminal; and according to the received measured result information of the channel quality of the control area or the number of the CCE, allocating CCEs with a required use number for the control channel of the terminal. According to the invention, the transmission reliability of the control channel can be improved.

The invention discloses an optical servo-based goods placing method and device, equipment and a storage medium which are applied to the technical field of robots. The optical servo-based goods placingmethod comprises the steps that three-dimensional point cloud information of to-be-placed goods is acquired; the three-dimensional point cloud information is analyzed to obtain an edge straight lineof the to-be-placed goods; a robot is controlled to hold the to-be-placed goods to move in the direction of a laser bright line; and the robot is controlled to place the to-be-placed goods to a goodsplacing plane when the edge straight line of the to-be-placed goods coincides with the laser bright line. The robot is directly controlled to translate to the laser bright line without pre-planning amotion trail of the robot, time is saved, the accuracy and the speed are higher, and therefore the efficiency and quality of controlling the robot to place the goods can be improved.

The invention relates to a measurement method, in particular to a machining online measurement method of blades of a hydroturbine. The machining online measurement method is characterized by comprising the following steps of: (a) designing a tooling; and (b) detecting: inspecting 3-5 points on the processed surfaces of the blades by a machine tool after completing local machining, recording a coordinate value of each point, introducing each coordinate value into a 3D (three-dimensional) model to get a detection point and judging the machining allowance of each point by measuring the vertical distance between the detection point and the 3D model, wherein if the machining allowance is a positive value, insufficient machining is indicated, otherwise, excessive machining is indicated. According to the measurement method disclosed by the invention, whether the positions of the blades are changed or not in the machining process can be simply, uniquely and better monitored, the correctness of blade profile after machining can be accurately detected, and the quality can be further effectively controlled.

A method for setting desired trajectories of movement of an exoskeleton for enabling movement in a user with a musculoskeletal disorder, a device for assisting walking in a user and a method for controlling said device enable walking in predetermined modes of movement in a user with limited mobility or complete immobility of the lower limbs but normal functioning of the upper limbs and upper part of the body. The invention enables such users to move with a gait pattern similar to the gait pattern of a person without a musculoskeletal disorder, while also providing the user with the possibility of independently changing movement mode and gait parameters, such as stride length, step height and pace, using a control panel 32. The invention comprises a part worn by the user, which includes a motorized lower limb exoskeleton 1 equipped with a control device 35, embodied in an on-board controller 85 of the exoskeleton 1, and a non-worn part, which includes an external computer 86 for a specialized assistant and a system 43 for determining the parameters of desired trajectories of movement of the exoskeleton 1 in a Cartesian coordinate system. Control signals for the exoskeleton 1 actuators are generated taking into consideration the mass and inertial properties of body segments of the user and of elements of the exoskeleton 1, as well as requirements regarding the quality of control. 3 independent claims and 6 dependent claims, 9 drawings

The invention provides a pressure control method and device. The pressure control method comprises the steps of determining an extraction valve for controlling pressure of a vacuum transmission chamber to start, and controlling a mass flow controller to charge a gas to the vacuum transmission chamber with a first set flow value when the pressure of the vacuum transmission chamber is smaller than a first set pressure value; acquiring a pressure value of the vacuum transmission chamber; and controlling the mass flow controller to charge the gas to the vacuum transmission chamber with a second set flow value when the acquired pressure value is larger than a second set pressure value, wherein the first set flow value is larger than the second set flow value. With a pressure control scheme provided by the embodiment of the invention, the pressure recovery time of a TC chamber can be effectively shortened, so that the chip transmission efficiency between the TC chamber and a PM chamber is improved.

The invention relates to a method for improving the quality of control signalling based on signalling messages controlling speech or data transmission over an air interface between at least two radio terminals of a radio communications system, said speech or data being transmitted in at least one traffic channel of said radio communications system, and said signalling messages being transmitted in control channels associated with said at least one traffic channel. In order to allow for an improved performance of SACCH and FACCH, a first and a second signalling message with identical content are transmitted in two separate associated control channels. Alternatively, a signalling message included in a single ACCH is coded with a stronger coding. The invention relates equally to corresponding radio terminals and modules for such units.

A system and method for controlling a mass flow controller to have a constant control loop gain under a variety of different types of fluids and operating conditions, and for configuring the mass flow controller for operation with a fluid and/or operating conditions different from that used during a production of the mass flow controller. Further, the system and method includes providing control by reducing the effects of hysteresis in solenoid actuated devices by providing a non-operational signal to the solenoid actuated device.

A system and method of operating an assembly line for performing an assembly operation on an article. The method includes the steps of detecting an absence or presence of an abnormality in the article and classifying the abnormality as one of a plurality of types including a first type of abnormality and a second type of abnormality. Additionally, the method includes the step of determining that the article is eligible for the assembly operation if at least the abnormality is detected as present and the abnormality is the first type of abnormality. Moreover, the method includes the step of determining that the article is eligible for the assembly operation if at least the abnormality is detected as present, the abnormality is the second type of abnormality, and an override command is received. Furthermore, the method includes the step of providing an electronic output if the article is eligibility for assembly.

A flow control valve apparatus, a manufacturing method thereof and a heat exchanger using the same. The flow control valve apparatus includes: a flow channel having a longitudinal axis comprised of an upper flow channel and a lower flow channel, for guiding a fluid; sealing means installed in a plane perpendicular to the flow channel and having an orifice through which the fluid passes; opening/closing means for controlling opening/closing of the orifice; and applying means installed along an outer circumference of the flow channel and to which a current may be applied for controlling the opening/closing of the orifice. According to the inventive flow control valve apparatus, the displacement of the permanent magnet valve member is varied using the current applied to the solenoid coil, thereby linearly controlling the opened area of the orifice and/or performing the opening/closing operation of the orifice. The valve apparatus can be miniaturized at a low price. By applying the valve apparatus to a heat exchanger, its cooling efficiency can be controlled easily.