457 results about "Exchange time" patented technology

The position of a non-cooperating emitter is determined by detecting a signal from the emitter at three or more receiver communication devices positioned at different locations. The receiver communication devices determine respective detection times of the emitted signal in respective local time reference frames. To establish a common time reference frame for the emitted signal detections, each receiver communication device exchanges time synchronization signals with a reference communication device. Since any of the receiver communication devices and the reference communication device may be mobile, the signal exchange allows each receiver communication device to accurately determine the signal propagation time between itself and the reference communication device and factor the signal propagation time into an accurate adjustment of the local time reference frame. Using trilateration, the position of the emitter is determined from known positions of the receiver communication devices and the emitted signal detection times from the receiver communication devices.

The invention relates to calcium sulfonate complex grease and a manufacture method thereof, in particular to grease producing the thickening agent by synthetic reaction with super-high base value. At first, the lubricating base oil and the calcium sulfonate are added into an opening reaction kettle to be stirred, the phase inversion promoter, the glacial acetic acid and the water are added into the kettle to boost the temperature to make the insulating reaction until the materials are thickened, then the calcium hydroxide, the aliphatic acid and the boric acid are added into make an insulating reaction, a temperature rise, an insulating dehydration and a refining in turn, then the materials are moved into an intermediate kettle, the antioxidant is added to disperse and homogenize, and the finished product is produced after the filtering. The invention has excellent anti-spray performance, excellent high temperature performance, good extreme pressure anti-abrasion performance, prominent anti-shear performance, good pumping performance, anti-rust performance and water adding shear stability; has apparent phase inversion effect and good product performance, decreases the grease exchange times under the same working condition and increases the service life of the equipment, which is proved by the trial applications of a plurality of appliance manufacture enterprises, steel works, paper mills and so on.

The invention discloses a method used for on-line measurement of density of alkali metal in atom magnetometer air chambers at SERF (spin-exchange relaxation free) states. According to the method, an atom magnetometer is provided with a weak background magnetic field and low frequency stage horizontal linear frequency modulated signals, a data collecting card is used for collecting response signals of the atom magnetometer in frequency sweep time; fast Fourier transform is adopted so as to obtain a magnetic resonance curve in a frequency domain, the resonance line width and the resonant frequency of the magnetic resonance curve are obtained via calculation; the background magnetic field is changed so as to obtain a plurality of resonance line widths and resonant frequencies, quadratic curve fitting of the resonance line widths and the resonant frequencies is carried out so as to obtain spin exchange time; and at last the density of alkali metal in atom magnetometer air chambers at the current temperature can be obtained via calculation. The method can be performed at maintained SERF states, on-line measurement of the density of alkali metal in the air chambers can be realized only using the SERF magnetometer; excellent frequency resolution ratio of linear frequency signals can be achieved at low frequency range (1kHz or lower); and the method is suitable for low frequency scanning range required by SERF magnetometer weak magnetic field.

The present invention relates to an apparatus for displaying filter exchange time of air cleaner and method thereof, the invention is to estimate practice degree of dust accumulated on the filter according to load state of fan motor, thereby more accurate filter exchange time is achieved. Therefore, the invention provides an apparatus for displaying filter exchange time of air cleaner, the air cleaner has a filter for eliminating dust and peculiar smell in the air, and a fan motor for driving air through said filter, the displaying device comprises a current monitor unit for measuring load current through the said fan motor; a control unit for comparing measured current value and predetermined reference current value, when the measured current value is less than reference current value, control signal for displaying said filter exchange time is output.

Server time protocol (STP) messages and methods of exchange thereof are provided for facilitating synchronization of processing units of a timing network. The STP messages include exchange time parameters (XTP) commands and responses, and STP control (STC) commands and responses. XTP message exchange processing includes: generating an XTP message command at a first processing unit including a command transmit timestamp field set by the first processing unit and a command receive timestamp field which is unset by the first processing unit; transmitting the XTP message command to a second processing unit; setting the command receive timestamp field in the XTP command with the time the XTP command is received at the second processing unit; and generating an XTP message response at the second processing unit, the message response including the command transmit timestamp set by the first processing unit and the command receive timestamp set by the second processing unit.

The present invention relates to computer network management technology, and is one session and medium authorization method in IP video telephone system based on session initialization protocol. Thepresent invention adopts network management technology based on strategy in realizing session authorization, and one strategy server is used in generating management command to inform the session control server to execute management action. The present invention solves the session and medium authorization problem in IP video telephone system and can control effectively the session occupied network resource. The present invention features that during session course, all the network entities exchange authorization message via transmitting authorization token to reduce message exchange times, decrease the mutual independence between the network entities and obtain even more flexibility.

A test system with multiple instruments. Some instruments act as controller instruments and others act as controlled instruments. Each instrument includes a clock generator that synthesizes one or more local clocks from a reference clock. The reference clock is a relatively low frequency clock that can be inexpensively but accurately generated and distributed to all of the instruments. A communication link between instruments is provided. Timing circuits within instruments that are to exchange time information are synchronized to establish a common time reference. Thereafter, instruments communicate time dependent commands or status messages asynchronously over the communication link by appending to each message a time stamp reflecting a time expressed relative to the common time reference. The test system includes digital instruments that contain pattern generators that send command messages to analog instruments, which need not include pattern generators. The architecture simplifies design of analog instruments and avoids redesign of analog instrument as pattern rates of digital instruments change.

The invention discloses an electric vehicle battery pack rapid exchanging system, which comprises a vehicle parking area, an electricity exchanging device, a battery rack, a stacker and an image sensor, wherein the electricity exchanging device is moved on a first guide rail to a second guide rail to arrive at a battery pack position of an electric vehicle and take out a battery pack to be charged to delivery to the battery rack; the battery pack that is full charged is sent to the electric vehicle; the stacker is moved on a third guide rail for putting the battery pack to be charged into the battery rack for charging; and the battery pack that is full charged is put to a battery pack exchange platform for making preparations for the next battery exchange, thus automatically rapid exchange of the battery pack is realized, without manual carrying; the work efficiency is high; the exchange time is greatly shortened; through setting the image sensor on the vehicle parking area, the electricity exchange device and the stacker, the battery pack position can be acquired timely and the apparatus is conveniently moved; and through a smog sensor on the battery rack, the occurrence of safety accident of the battery pack during the charging process is timely monitored, thus improving the safety.

An exposure apparatus is configured so that a wafer carrier robot can deliver a wafer to a wafer holder held by a holder carrier robot or can carry out a wafer from the wafer holder held by the holder carrier robot, under a reduced-pressure environment. According to the apparatus, even if it takes a relatively long time to replace the wafer on the wafer holder used inside the reduced pressure space, by performing the wafer exchange operation and a predetermined operation (the exposure apparatus main section operation) using the stage on which the wafer holder holding the wafer is mounted concurrently, the influence that the wafer exchange time has on the throughput can be suppressed.

The invention discloses an unmanned aerial vehicle millimeter wave communication beam tracking method. A time slot structure of unmanned aerial vehicle millimeter wave communication is designed into an exchange time slot and T tracking time slots, and the process in the exchange time slot comprises receiving MSI feedback; Calculating an actual beamforming vector according to the actual position and attitude information of the receiving-end unmanned aerial vehicle in MSI feedback, and predicting the position and attitude information of the receiving-end unmanned aerial vehicle in T tracking time slots in the future; Transmitting information through the actual beamforming vector, Wherein the process in the tracking time slot comprises the steps of calculating a predicted beam forming vectoraccording to a predicted position and attitude information; And transmitting information through the prediction beam forming vector. The position and the posture of the unmanned aerial vehicle are effectively tracked, the millimeter wave communication spectrum efficiency of the unmanned aerial vehicle can be improved under the condition that the unmanned aerial vehicle rapidly moves, channel stateinformation feedback of pilot frequency and a receiving end is not needed, and the time delay error difference between the unmanned aerial vehicle and the real motion state can be reduced.

The invention discloses an inner and outer cylinder structure of a washing machine with a drying function. The inner cylinder is coaxially arranged inside the outer cylinder, and the shaft of the inner cylinder passes through the rear of the outer cylinder. The rear of the outer cylinder is provided with a drying air inlet A windshield structure is provided on the periphery of the drying air inlet between the inner side of the rear part of the outer cylinder and the outer side of the rear part of the inner cylinder to prevent the drying air from diffusing radially at the rear part of the inner and outer cylinders. The windshield structures are respectively designed There are multiple retaining ribs on the inner side of the rear of the outer cylinder and the outer rear of the inner cylinder along the circumferential direction. The ribs are all around the periphery of the drying air inlet. The radius of the ribs is different so that the relative The adjacent retaining ribs are staggered and overlapped. The inner and outer cylinder structure of the present invention can increase the heat entering the inner cylinder during the drying process, reduce heat loss, increase the heat exchange area and heat exchange time of the hot air in the inner cylinder, and improve the drying efficiency of the whole machine.

A current differential protection system for a multi-terminal power line includes a current sensor for sensing a current at a local terminal, a controller for time synchronizing the local terminal and remote terminals, and a fault detection module to detect a fault in the multi-terminal power line if a differential current exceeds a threshold value. The controller includes a time measurement exchange module for exchanging time stamp data with remote terminals, an upper range clock for exchanging time stamp data with remote terminals and a lower range clock for indexing the current at the local terminal. A first time period of the upper range clock is N times a second time period of the lower range clock where N is a number of multi-terminals. The controller includes a clock offset calculation module for determining an average time offset based on time stamp data from remote terminals and the local terminal.

A test system with multiple instruments. Some instruments act as controller instruments and others act as controlled instruments. Each instrument includes a clock generator that synthesizes one or more local clocks from a reference clock. The reference clock is a relatively low frequency clock that can be inexpensively but accurately generated and distributed to all of the instruments. A communication link between instruments is provided. Timing circuits within instruments that are to exchange time information are synchronized to establish a common time reference. Thereafter, instruments communicate time dependent commands or status messages asynchronously over the communication link by appending to each message a time stamp reflecting a time expressed relative to the common time reference. The test system includes digital instruments that contain pattern generators that send command messages to analog instruments, which need not include pattern generators. The architecture simplifies design of analog instruments and avoids redesign of analog instrument as pattern rates of digital instruments change.

A lithography tool includes an exposure chamber and a reticle handler that exchanges a reticle being exposed as prescribed by the user of the lithography tool. The reticle handler can include a vacuum-compatible robot, a vacuum chamber to house the robot, a load-lock to input reticles and transition them from atmospheric pressure to vacuum, a processing station for processing the reticle, and a reticle library for storing at least one extra reticle so that it is quickly available for exchange during an exposure process. The robot can have a two or more handed gripper to simultaneously hold multiple reticles. This allows a first reticle to be removed from the reticle stage with a first hand and a second reticle to be loaded onto the reticle stage with a second hand, and so on, which minimizes exchange time.

When exchanging a tool, a tool of a spindle is stored in an empty pocket of a tool magazine, and thereafter, upward movement of the spindle and rotation of the tool magazine are simultaneously executed. At this time, synchronous control is performed in order to prevent a collision between the spindle and the tool. When installing a next tool in the spindle, both downward movement of the spindle and rotation of the tool magazine are executed while synchronously controlling. The tool exchange time can be shortened with simultaneously executing the movements of the spindle and the tool magazine.

The invention discloses a casing type heat exchange tube, which comprises an inner tube and an outer tube, the inner tube is located in the outer tube, the upper end of the outer tube is connected with the medium inlet, the lower end of the outer tube is sealed, the upper end of the inner tube is connected with the medium The outlet is connected, and the lower end of the inner pipe is open. The sleeve-type heat exchange tube has the following advantages: 1) It increases the contact area with the surrounding filler or soil; 2) The flow velocity of the heat exchange medium in the outer tube is reduced, which increases the heat exchange time of the heat exchange medium; The heat exchange medium conducts heat exchange downwards by its own weight, and the flow distance of the heat exchange medium in the tube is shortened.

By determining a metric for tool utilization in a manufacturing environment on the basis of tool-specific characteristics and a probability distribution for the transport capability of an automated material handling system, the influence of the transport system on the tool performance may be effectively determined. For this purpose, an average delay caused by the automated material handling system may be iteratively calculated on the basis of a respective required carrier exchange time, which depends on tool- and process-specific characteristics. From the corresponding average delay, an appropriate metric, such as a utilization loss factor, may be determined.