320results about How to "Short delay time" patented technology

Methods and apparatus for mixing fluids are provided. The devices and methods operate without moving parts, and generate well-mixed fluids over a broad dynamic range of flow rates. Preferred embodiments include junction-type mixers, bundled mixers, and co-axial mixers. The devices and methods are optimized to produce rapid, accurate gradients to improve associated system throughput and reproducibility.

The invention discloses a realization method for mobile handover of a next generation of IP full wireless sensor network. The wireless sensor network comprises a gateway node, a fixed sensor node, a mobile sensor node and a correlative node of the mobile sensor node. The current correlative node of the mobile sensor node is used for carrying out mobile monitoring to the mobile sensor node; and when the mobile sensor node is about to being separated from a communication scope of the mobile sensor node, the correlative node is responsible for searching a next correlative node of the mobile sensor node and executing the mobile handover to ensure the accuracy and the continuity of the mobile sensor node during the communication. In the invention, the mobile handover control information is automatically routed through a network topology, so that the power consumption and the delay time brought by routing are saved. In addition, the mobile sensor node is not required to carry out care-of address and participate in the mobile handover control process, so that the energy is saved, and the service life is prolonged. The invention can be applied to various fields like agricultural facility modernization, medical heat care and the like.

The problem of transients can be addressed satisfactorily and a further decoding delay can be reduced for this if use is made of a new SBR frame class in which the frame limits (902a, 902b) are not shifted, that is to say the grid limits are still synchronized with the frame limits (902a, 902b), but in which a statement of the transient position is also used as a syntax element in order to be used, within the frames of this new frame class, to determine the grid limits within these frames at the coder and/or decoder end.

The invention discloses a cross-machine-room data synchronism method which comprises a demand processing method of parallel processing and a long-distance synchronism method. According to the demand processing method, requests are processed by local sites, index key value used for unique location is built for changed data, and the index key value is added to a first in first out (FIFO) queue. According to the long-distance synchronism method, the corresponding changed data contents are found by the local sites according to the index key value in the FIFO queue, and synchronous instructions are sent to each long-distance site. The invention further discloses a cross-machine-room data synchronism system corresponding to the cross-machine-room data synchronism method. The cross-machine-room data synchronism method and the system have the advantages of being short in delay time and waiting time, low in energy consumption and correct in data synchronism of the long-distance sites from beginning to end.

To synchronize communications system components coupled via a communications network, a time information transmitter is provided which is used to transmit time information, possibly on request, relating to the communications system components. The communications system components each have a clock generator, which needs to be synchronized, and a real time clock, where the clock generator both determines the transmission rate for communications data which are to be transmitted and prescribes the time base for the real time clock. In addition, the communications system components each have a comparison device for comparing received time information with a current time value indicated by the real time clock, and a clock frequency controller for regulating the clock frequency of the clock generator on the basis of the comparison result.

A mobile station 100 monitors, in Slotted mode, a Paging Channel Slot in a monitor cycle. The mobile station 100 includes: a user interface 53 which receives a PTT setting operation from a user for setting a PTT (Push to Talk) mode; a PTT communication control unit 51 which transmits an allocation request to the radio base station when the PTT setting operation is received; a slot cycle switching unit 52 which switches, when the PTT setting operation is received, the monitor cycle to a predetermined short cycle which is shorter than a cycle at the time of receiving the PTT setting operation; and a voice signal processing unit 40 which receives a voice packet after a PTT CALL is detected in a message transmitted from the radio base station to the mobile station, and reproduces a voice based on the voice packet.

The invention provides a real-time dynamic measurement method for measuring radial clearance between a steam turbine rotor and a stator. The method is characterized in that the method comprises the steps of determining distance measurement devices for radial clearance, determining radial clearance between the rotor and the stator, determining the radial clearance between the rotor and the stator, determining the distance from an emitter to the surface of the rotor, calculating vertical offset amount of the rotor when the center of the rotor shifts, calculating horizontal offset amount of the rotor when the center of the rotor shifts, calculating the rotor offset amount at any position and calculating the radial clearance between the steam turbine rotor and the stator. The method can carry out dynamic measurement on the rotor labyrinth clearance and blade top labyrinth clearance of a running steam turbine accurately and quickly, thereby solving the problem that the measuring error of the radial clearance between the steam turbine rotor and the stator is large and the radial clearance cannot be measured online dynamically and accurately, ensuring safe and economical operation of the machine set and saving halt overhaul time.

A satellite attitude and orbit control system based on satellite network is prepared for sending transfer order for obtaining information to certain assigned intelligent sensor with microprocessor through satellite network for making satellite affairs dispatch unit obtain relevant information, sending control command to certain assigned intelligent execution element by dispatch unit through satellite network after calculation, executing said control command by intelligent execution element with microprocessor in order to make satellite be moved for realizing control purpose after control command is received by said execution element.

The invention discloses a height online monitoring device and closed-loop control method for laser cladding additive forming. The online monitoring device comprises a cladding forming unit and a monitoring control unit. The cladding forming unit comprises a laser device, a cladding head and a matrix. The monitoring control unit comprises an image taking unit, a connecting frame, an image processing unit, a control unit and an execution mechanism unit. In the closed-loop control method, the image taking unit is fixed to laser cladding equipment to move along with a cladding nozzle, images including the cladding nozzle and a molten bath in the cladding additive forming process are acquired in real time, and the image processing unit is utilized for carrying out pixel processing on the images; the outlines of the cladding nozzle and the molten bath in the cladding additive forming process are extracted, and the forming thickness of a single cladding layer is obtained; and the forming height of the formed cladding layer is obtained through layer-by-layer thickness accumulation, the lifting height of a cladding spray head of the next layer is corrected in real time in a self-healing interval, process parameters are optimized in good times, and forming height closed-loop control is achieved.

A time-to-digital converter includes at least one chain of delay elements, a status of which represents a digital signal relating to a time interval to be converted. The converter includes a provider for providing trigger signals having statistically equally distributed variable positions relative to a pulse forwarded in the chain of delay elements, a capturer for capturing the status of the chain of delay elements in response to the calibration trigger signals, the status depending on delay times of the delay elements, a determiner for determining an actual contribution of at least some of the delay elements to an overall delay of the chain of delay elements on the basis of occurrences of pulse positions in response to the calibration trigger signals. The converter is configured to take into account the actual contribution of at least some of the delay elements when converting the time interval into said digital signal.

The invention discloses a laser cladding additive forming online monitoring device and a look-ahead-feedback control method. The online monitoring device comprises a cladding forming unit, a monitoring unit and a control system unit; the cladding forming unit comprises a laser device, a cladding head and a worktable, the monitoring device comprises a temperature measuring instrument, an image intake unit and a connection frame, the control system unit comprises a program pre-reading unit, a look-ahead control unit, an image processing unit and a feedback control unit; according to the controlmethod, the temperature measuring instrument and the image intake unit are fixed to the laser cladding device to move jointly along with the cladding head, and compared with axis feeding speeds calculated through the interpolation period in the program pre-reading process and the actual scanning line speed of the cladding head, according to the difference value, the laser power is subjected to look-ahead control, through monitoring of molten pool characteristic sizes obtained after pixel treatment of a molten pool image continuously shot by the image intake unit in the laser accumulation process and collecting of the molten pool center temperature collected by the temperature measuring instrument, the laser power is subjected to closed-loop feedback control.

A reciprocating two-stroke uniflow internal combustion (IC) cylinder and multiple cylinder engine, the cylinder having a cylinder wall and a cylinder head, the cylinder head having an exhaust port, a fuel injector, and a spark means disposed through the cylinder head, a piston reciprocally mounted in the cylinder for movement alternately through compression and power strokes, and a scroll plenum extending unidirectional around the outside of the cylinder wall and having an inlet and a plurality of swirl ports disposed through the cylinder wall providing fluid communication from the scroll plenum into the cylinder chamber, wherein the plurality of swirl ports enter the cylinder chamber tangentially with respect to the axial centerline of the cylinder, and wherein the plurality of swirl ports are subject to opening and closing in response to movement of said piston.

The invention discloses a process protection method and device. The process protection method comprises the following steps: establishing and starting a protection process for a host process of an application program by an electronic product; monitoring a protected process through the protection process; because the connection between the protected process and the protection process is interrupted when the protected process is interrupted, when the protection process monitors that the connection is interrupted, restarting the protected process. According to the process protection method and device, an alarm clock application program does not need to be frequently started to detect a background operating application program, so that the consumption of system resources is effectively reduced; in addition, when the protection process monitors that the connection is interrupted, the protected process is restarted immediately, the delay time of ensuring that the background operating application program is interrupted and restarting the background operating application program is short, so that the influence of the interruption of the background operating application program on data receipt of the background operating application program is greatly reduced, and the system performance is effectively improved.

A base station apparatus includes a base-station receiver which receives information indicating the occurrence of the given event in the wireless terminal device, the information being transmitted from the wireless terminal device using the common slot. The base station apparatus includes a base-station transmission and reception manager which determines the number of random slots assigned as random slots to transmit the bandwidth request information for the given event among random slots in the random access period, based on the occurrence of the given event received by the base-station receiver. The base station apparatus includes a base-station transmitter which transmits, in the base station apparatus, information on the assigned random slots to the wireless terminal device of random access period.

A gateway for data transfer between serial buses, including multiple communication modules that are each provided for connection of one serial bus, and that carry out a conversion between data packets and data words, a bus master that, via an internal control bus, controls a word-based transfer of data via an internal data bus between two communication modules, the bus master applying a source address via a source address bus to an internally transmitting first communication module, and a destination address via a separate destination address bus to an internally receiving second communication module, data received in data packets by the first communication module via a first serial bus connected thereto being transferred from the first communication module directly without buffering, in word-based fashion in one or more data words, via the internal data bus to the second communication module, which delivers these transferred data, in data packets, via a second serial bus connected to the second communication module.