107results about How to "Avoid discontinuation" patented technology

A method of defining header field compression for a data packet connection and a header field compression system, in which a context for controlling the operation of a compressor and decompressor is defined as one parameter of the connection. A length is defined for a context identifier used in identifying data packet connections for data transmission between the compressor and decompressor, said length defining the maximum number of data packet connections transmitted on one connection. Each data packet connection is identified by its own context identifier. The parameters of the connection are defined in such a manner that at least the number of header fields of data packet connections allowed by the defined context identifier length can be compressed despite the fact that the number of data packet connections allowed by said context identifier length is exceeded.

A mounting device includes a case that has an insertion inlet for a mobile information terminal, a connector that establishes electrical connection to the mobile information terminal inserted in the insertion inlet, and an ejection mechanism that ejects the mobile information terminal after completion of processing through the connector. After the completion of the processing, by an action of the ejection mechanism, the mobile information terminal is popped up from the mounting device, and a user is understandably notified of the completion of the processing.

There is provided a technology for preventing disabling of function of a clock monitoring circuit by a hacker in a microcomputer for IC card provided with a clock monitoring circuit as a countermeasure for a hacker. In the microcomputer for IC card provided with the clock monitoring circuit, the clock monitoring circuit is given the function to perform the detecting operation twice during one cycle, namely at the timings of rise and fall of the clock.

A digital television receiver and antenna control method in the digital television receiver are disclosed. The digital television receiver includes and antenna having directivity according to a control signal for switching patterns of the antenna. A receiving section receives and processes channel signals for digital television broadcasting through the antenna. An antenna control section generates the control signal for switching the patterns of the antenna based on channel information according to the received channel signal. An antenna switching control section switches the patterns of the antenna during a sync signal period of the received channel signal when the control signal is generated.

The present invention is a digital broadcasting system for transmitting and receiving, via a network, a broadcast stream created from a broadcast source. The digital broadcasting system includes: a hierarchical coding unit (2) which codes the broadcast source depending on a characteristic of the broadcast source and generates, from the coded broadcast source, a first layer code and a second layer code which can respectively be used for reproduction of the broadcast source; a synthesis unit (5) which generates data bursts, each of which includes the generated first layer code and second layer code; a multiplexing unit (7) which creates the broadcast stream by multiplexing the generated data bursts; a transmission unit (9) which transmits the created broadcast stream to the network; a tuning/demodulation unit (301) which receives the transmitted broadcast stream; a synchronization unit (302) which extracts, from the received broadcast stream, at least one of the first layer code and the second layer code; and a TS decoder (303) which reproduces the broadcast source using the extracted code.

The present invention provides on IC test substrate for testing various signals, a combined flexible and rigid PCB included in the structure is applicable to perform a mission including for example: stabilizing power input/output, signal transfer by a connector; general, power, and high frequency signal transmission in preserved integrity state.

The invention relates to a frequency converting and energy saving device of an oil pumping machine in the technical field of electronic control. The device comprises a breaker, a frequency converter, a current transformer, an input reactor, a first contactor, a second contactor, a third contactor and a thermal relay, wherein an external power supply is connected with the breaker, after the external power supply is controlled by the breaker, the external power supply is divided into two paths of circuits through the current transformer, and one path of the circuit is a frequency conversion loop, while the other path of the circuit is a power frequency loop; the frequency conversion loop firstly passes through the input reactor and then enters the frequency converter through the third contactor, and after the frequency conversion loop is subjected to frequency conversion through the frequency converter, the frequency conversion loop enters the first contactor; the power frequency loop comprises the second contactor and the thermal relay which are connected in series; and the whole power frequency loop and the frequency conversion loop are connected in parallel. The frequency converter is added in a control cabinet of the oil pumping machine so as to improve the output and the pump efficiency of an oil well, compensate the power factor, avoid impacts to power grid equipment when a motor is started and realize arbitrary jig frequency regulation and segmental rotating speed control.

The embodiment of the invention provides a method and device for determining a master node in a server cluster and the server cluster. The method includes the following steps: receiving registration requests sent by multiple servers successively; assigning a node sequence number to each server according to the registration requests; and determining a server in the multiple servers registered to the server cluster as the master node according to the node sequence numbers. According to the scheme of the invention, the problems that service systems are out of service and cannot provide online services to the outside in the case that a single server has a single point of failure, and data corruption or result errors may be further caused when the multiple servers simultaneously work to processthe same piece of data can be avoided.

The invention discloses a frequency-conversing compensating and energy saving control apparatus of an oil pumping unit in oil fields. The apparatus is composed of a motor, a sensor, a data acquisition unit, and a frequency-conversing compensating control unit. The sensor and the data acquisition unit transmit the collected data signals to the frequency-conversing compensating control unit. The shut down or starting of the motor is controlled by the frequency-conversing compensating control unit through a discontinuously-pumping control switch, and the speed of the motor is changed by frequency conversion and speed regulation. The frequency-conversing compensating control unit is controlled by a closed loop feedback system, and is composed of a frequency converter, a programmable logic controller (PLC), a temperature control module, a position detection module, a brake module, an operation panel and a parameter adjusting panel. The energy saving effect is realized by controlling the discontinuously-pumping and frequency conversion and speed regulation of the motor of the oil pumping unit through the frequency-conversing compensating control unit. The technical scheme of the invention employs the frequency conversion control, ensures the accurate match of an output power of the motor and load demands, and dynamically adjusts the pumping speed according to a real feed flow capability of oil wells. The electric energy is saved, the crude oil output is increased, and the service life of the apparatuses is prolonged.

The invention discloses a locomotive vehicle display control apparatus, system and method. The apparatus is based on a programmable logic device and comprises an LCD control module used for performing read-write control on data output by a processor module and outputting the data to an LCD display module; a low-temperature heating control module used for driving an external heating module to generate heat to heat the LCD display module when the temperature of the locomotive vehicle display control system is lower than a heating limit value; an over-temperature alarm control module used for driving an external over-temperature alarm driving module to perform over-temperature alarm when the temperature of the locomotive vehicle display control system is higher than a high temperature limit value; and an LED backlight control module used for generating PWM signals according to the change of the ambient brightness and outputting the PWM signals to the LCD display module for brightness adjustment. According to the apparatus, system and method, technical defects that in the prior art, a lot of processor resources need to be occupied, the universality and the practicality are not high, and purchase and halt production risks exist in key devices are overcome.

Provided is a rapid switching device for a 110kV power supply system of petrochemical enterprises. The rapid switching device comprises a microcomputer chip, and the microcomputer chip determines whether a reverse power starting condition, a zero-current starting condition, a voltage-loss starting condition, a tripping error starting condition and a protection starting condition are satisfied; if the tripping error condition is satisfied, a switching operation is started, and whether the other conditions are satisfied are further determined successively; if any condition except the tripping error condition is satisfied, an incoming switch tripping command is emitted, the switching operation is started, and whether a rapid switching condition, a same-period capture switching condition, a residual voltage switching condition and a long delay switching condition are satisfied is determined successively; if one of the condition is satisfied, determination is stopped, and a corresponding switching command, namely a rapid switching command or a same-period capture switching command or a residual voltage switching command or a long time delay switching command, is transmitted. Thus, the 110kV power supply system of petrochemical enterprises can be stably switched between a working power supply and a standby power supply.

The invention discloses a continuous casting and rolling and boronizing method and device of a conductive aluminium alloy rod. The continuous casting and rolling and boronizing method of the conductive aluminium alloy rod comprises the following steps that step 1, industry pure aluminum is heated and melted in a smelting furnace, when the temperature of aluminum melt reaches 730-750 DEG C, the aluminum melt is poured into a holding furnace from the smelting furnace through a flow discharging groove; step 2, alloying components of the aluminum melt in the holding furnace are subjected to purification treatment; step 3, the aluminum melt is discharged through the flow discharging groove and is subjected to continuous feeding of A1-B intermediate alloy wire rod at the end, near the holding furnace, of the flow discharging groove, and thus the aluminum melt makes sufficient contact with the A1-B intermediate alloy wire rod and is reacted with the A1-B intermediate alloy wire rod in the flow discharging groove and enters an online gas-freeing device with a slag discharging hole arranged on the bottom; step 4, the aluminum melt after still standing enters a ceramic filtering device through the flow discharging groove and is filtered, then the filtered aluminum melt enters a horizontal casting system through a casting flow groove and is poured into a continuous casting machine, and aluminium alloy wirebar is formed and the aluminum melt is subjected to continuous separation; and step 5, a aluminium alloy rod is obtained through continuous roll forming, the aluminium alloy rod is cooled by an online cooling device, and then the cooled aluminium alloy rod is winded into a coil rod.

As for an audio data outputting apparatus and an audio data inputting apparatus for performing processing on audio data to transfer the audio data at each predetermined frame period, the processing on audio data performed at each frame period is done by hardware other than a CPU so that the CPU will not be interrupted at each frame period. In a case of transfer of audio data from a host to the audio data outputting apparatus, a reproduction control portion controls the data transfer in which a reception buffer and a reproduction buffer are involved, also controlling a receiving portion and a processing portion (DSP). In a case of transfer of audio data from the audio inputting apparatus to the host, a recording control portion controls the data transfer in which a transmission buffer and a recording buffer are involved, also controlling a transmitting portion and a processing portion.

The invention relates to a full-time wear accumulative wear life prediction method of a stamping die, which adopts a wear testing machine to separately measure wear coefficient K, roughness coefficient R, specific gravity alpha of adhesive wear and specific gravity beta of abrasive wear of a plurality of die materials with different treatment modes; through the finite element simulation experiment, the hardness H of the die material and the relationship between the hardness and the wear depth gradient were obtained. According to the die surface CAD digital model of the stamping die, the contact die surface of the stamping die and the stamped sheet metal is extracted, and the contact stress P of the contact die surface and the slip speed v of the stamped sheet metal is extracted relative tothe die through numerical simulation of stamping forming; a new wear model is established and the wear depth is calculated by using the above parameters as boundary conditions. When the wear depth ofthe stamping wear model obtained by iteration reaches the limit allowable value, it is confirmed that the current stamping times is the die wear life. The invention solves the technical problem thatthe prediction accuracy of the traditional Archard model is not high.

The invention discloses a method for plugging a leaking point of a flange face and a sealing gasket of high-pressure equipment. The method includes the following steps: disposing a glue injection bolt in a bolt hole, and enabling an outlet of an L-shaped hole to be positioned at the leaking point of the flange face and the sealing gasket, wherein the glue injection bolt is provided with the L-shaped hole formed downwards from the head of the glue injection bolt along the axial direction, and the L-shaped hole is a glue injection passage; injecting a sealing agent through the glue injection passage to plug the leaking point; screwing a sealing bolt into the L-shaped hole to seal the glue injection bolt, wherein the sealing bolt is matched with the L-shaped hole. Correspondingly, the invention further discloses a device used in the method. The device comprises the glue injection bolt and the sealing bolt. The glue injection bolt is provided with the L-shaped hole downwards formed from the head of the glue injection bolt along the axial direction, an outlet end of the L-shaped hole is communicated with the outside, and outer diameter of the sealing bolt is matched with inner diameter of the L-shaped hole. The method and the device have the advantages that the leaking point, positioned on the flange face and the sealing gasket, of the high-pressure equipment can be plugged quickly, conveniently and effectively.