411results about How to "Reliable implementation" patented technology

A document correlation diagram drawing device includes extracting means (20, 30) for extracting content data and time data of document elements (E) each including one or more documents, dendrogram drawing means (50) for drawing a dendrogram showing a correlation between documents on the basis of the content data of the document elements, clustering means (70) for cutting the dendrogram in accordance with a predetermined rule and extracting clusters, and intra-cluster arranging means (90) for determining an intra-cluster arrangement of the document elements belonging to each cluster on the basis of the time data of the document elements. Accordingly, a dendrogram adequately showing the chronological development in each field can be automatically drawn.

A digital downloading jukebox system including a central server and a plurality of remote jukebox devices each provided with a local server that preferably mirrors the central server and enables selected songs to be immediately downloaded to the jukebox for reproduction. The local server and jukebox may also provide, through control of the central server, song download services to other jukebox devices, such as residential jukeboxes. The jukebox system may also act as a monitoring / management device for other coin operated equipment present in a location where the jukebox is located, thereby enabling the jukebox device to perform updates on other equipment under control of the central server.

The invention relates to a high-speed electromagnetic valve driver circuit. An input signal buffer unit mainly performs buffering shaping on an input signal from an external central control unit and improves the antijamming capacity thereof; a high side current detection unit realizes current detection by detecting differential voltage of one resistor in a load branch circuit; a PWM signal generator mainly generates a PWM wave with fixed frequency, the current is controlled and kept by regulating the duty cycle of the waveform; a power drive unit mainly supplies enough power drive for a power NMOS tube so that the power NMOS tube can fully operate in a switch state and reduce switch loss and heating; a signal time delay unit outputs a time delay for a current detection signal; in the delay time, the power NMOS tube is cut off, so that a coil can have afterflow; a logical gate circuit unit is a coincidence gate and generates a synchronizing signal required by the PWM signal generator after performing phasing on the current detection signal and a time delay signal thereof.

A security device for the identification or authentication of valuable goods is described, including a thin material layer (22, 26) presenting a stochastic pattern including micro / submicrostructures, where the latter are arranged in blobs (2) each of which presents a complexity factorCx=L24π·A,where L is the perimeter of the blob and A its area, and wherein blobs having a Cx value greater than or equal to 2 cover at least 5%, preferably at least 15%, of the device surface. According to a preferred embodiment, the material layer may include a film including at least a first and a second polymers arranged respectively within a first and a second phases defining the micro / submicrostructures. Preferred processes of fabrication are also disclosed, as well as a method for securing a valuable good based on such a security device.

Methods and apparatus, including systems and computer program products, for a services architecture design that provides enterprise services having product catalog functionality at the level of an enterprise application. The design includes a set of service operations, process components, and optionally deployment units. Suitable business objects are also described.

Methods, systems, and apparatus, including computer program products, for implementing a software architecture design for a software application implementing the selling of project-based services are disclosed. The application is structured as multiple process components interacting with each other through service interfaces, and multiple service operations, each being implemented for a respective process component. The process components include a Project Processing process component that supports the management of projects, a Supplier Invoice Processing process component that manages supplier invoices, an Accounting process component that records relevant business transactions, a Customer Invoice Processing process component that manages customer invoices, and a Goods and Service Acknowledgement process component that receives a confirmation from an employee of goods received or services rendered.

A method for creating variants of a DTV service, a method which is simpler than the method defined in GBS0600, and the method can handle all use-case scenarios for simulcast linking in a way almost equal to that defined in GBS0600. The method introduces switching between a mother service and a variant service, the mother service being a default service to which a receiver should tune, and the variant service being a service selected at a receiver side and linked to the mother service by a service link defining a switching relation between the mother service and the variant service. The method is defined by including switching information into the data-stream of the mother service, receiving the mother service data-stream, reading the switching information, and switching from the mother service to the variant service accordingly. The switching information can be carried in EPG data and thus utilize existing data structures. EPG data of the mother service, e.g. in the form of EIT data, can be used to carry switching data, expect for variant service events different from the mother service, where the EPG / EIT data are preferably cross-carried by the mother and variant service. Preferably, the receiver selects which one of a plurality of possible variant service to switch to, e.g. based on receiver capabilities and / or user access rights. Thus, EIT carriage efficiency for services with a large degree of sharing is high, and it offers advantages in tuning speed. Further, the method will lead to simpler and consistent receiver implementations.

The invention discloses a smartphone portable point safe access system and a smartphone portable point safe access method. The system comprises a smartphone as a wireless access point and a smartphone as an access terminal, wherein the wireless access point comprises a wireless access point near field communication (NFC) module and a first data transmission module; the access terminal comprises an access terminal NFC module and a second data transmission module; the wireless access point is connected with the access terminal by the NFC modules so as to conduct Wi-Fi protected access (WPA) safety authentication, and execute data encryption transmission by using the first data transmission module and the second data transmission module. According to the method and the system, the safety authentication process between the wireless access point and the access terminal is finished by using the NFC mode, without using the general wireless local area network authentication mode, due to that fact that the communication distance of NFC is within 10cm, the communication between both is ensured to be more reliable by adopting the close range, so that an attacker has no opportunity to obtain a handshake authentication package; after the authentication is finished within the close range, the communication in longer range can also be executed by using the WPA encryption transmission data.

The invention discloses a modular multilevel converter high voltage direct current (MMC-HVDC) converter station starting method used for a power network black start and belongs to the technical field of power transmission and distribution. The technical scheme is that corresponding starting method and strategy are provided aiming at a two-end system and a multi-end system, wherein the method and strategy for the two-end system converter station black start comprise the steps of firstly, starting an active side converter station, closing a direct current transmission line disconnecting link, and charging a passive side converter station at the same time, secondly, carrying out charging in an alternation cycle sorting conversion mode, locking the converter station for a short time when pre-charging is finished, and finally, unlocking the converter station, placing a constant alternating-current voltage controller and fishing start-up. The method and strategy for the multi-end system converter station black start comprise the steps of respectively connecting a resistance (Rx) with positive and negative electrodes on the outlet side of each end of the multi-end system in series on the basis of the steps of the start-up of the two-end system and guaranteeing that the black start can be carried out at any ends with other ends keeping in stable operations. Therefore, reliability of power supply is guaranteed.

The invention relates to a ground station remote control device of an unmanned vehicle, comprising a universal remote controller, a ground station monitoring computer based on Google Earth and a radio data transmission station. The ground station monitoring computer is communicated with the radio data transmission station through a USB (Universal Serial Bus) or a serial interface so as to obtain movement states of the unmanned vehicle in real time and display movement postures and movement tracks of the unmanned vehicle through the Google Earth; the ground station monitoring computer is further communicated with the universal remote controller through the USB or the serial interface to pick up a control command of the universal remote controller in real time and transmit the control command to the unmanned vehicle through the radio data transmission station, therefore, the movement control of the unmanned vehicle and the control of task equipment are realized. The ground station remote control device of the unmanned vehicle, disclosed by the invention, has the characteristics of compactness, good practicability, simplicity in control, low cost and the like, solves the distance limitation of a remote controller to directly control the unmanned vehicle and improves the maneuverability and the comfortableness of ground stations.

A method, arrangement and valve for controlling rock drilling. In the method, a pressure difference acting across a rotation motor is used to regulate a separate feed regulating valve, which, on the basis of this, regulates control pressures of a feed control valve. The arrangement comprises a separate feed regulating valve, which, under the influence of the pressure difference acting across the rotation motor, regulates control pressures of a feed control valve. The valve comprises a separate retarding element, which slows down the returning of a spool of the valve to the normal position, if the spool has moved away from its normal position under the influence of the pressure difference acting across the rotation motor.

The invention discloses a corn directional seeding method, a directional seed block manufacturing equipment and a device for seeding seed blocks, which aim to overcome the phenomenon that corn leavesare mutually interfered and shield sunlight, and enable the spreading direction of the leaves to be consistent and vertical to a ridge direction to improve planting density and yield. The method comprises the following steps: firstly manufacturing seed strips consistent to biological characteristics of corns, and directionally loading seeds onto carriers for directional seeding; and making germ surfaces of the seeds loaded onto the carriers parallel to the ridge direction, germs vertical to the ridge direction, tops of the seeds upward and the germ surfaces facing outsides of the seed blocks.The carrier seed block manufacturing equipment has the following structure: a directional module is arranged in a hole of a seed block template; the inside of the directional module is provided with aseed positioning slot hole and a seed pushing mandrel; a seed strip box and a feeding device are arranged above the seed block template; the height difference is controlled to complete seed positioning, material filling and demoulding. The device for seeding the seed blocks comprises a seed block passage, a seed feeding mechanism, a colter and a seed block charging mechanism. The method, the equipment and the device overcomes the defect that the leaves are disorderly arranged, and can greatly improve corn planting density to improve the yield and show the advancement of precision agriculture.

An object of the present invention is to avoid packet loss and implement a seamless handover by minimizing the handover latency when a handover is implemented by a multihomed moving network (MN) or a mobile host (MH). The present invention is a mobile communication system that is constituted comprising an MN, a plurality of AI each constituting an interface for the connection to a core network at the MN, and a control device (MMF), wherein the MMF dynamically changes the AI adopted as the connection interface when a predetermined condition is satisfied on the basis of the connection status to the core network at each AI or the prediction information for a subsequent handover. In so doing, the control device continues the transmission and receipt of data with respect to an appropriate AI capable of maintaining a predetermined communication quality, and maintains the connection to the core network of another AI while causing this AI to enter a closed state in which the transmission and receipt of data is disabled.

This invention relates to one method to support and wake up mechanism isometric sensor network system, which is characterized by the following: the simple media points in work status to monitor environment for real-time and timely send sensor data to data collection point by multiple wireless transmission type; each simple points are set with rules of real-time analysis sensor data, wherein, once there is affairs, then starting waking mechanism assistant with monitor affairs to send back the points to the data collection point for analysis and merging process for accurate decision.

The present invention essentially comprises a system, method, computer program and combinations thereof to utilize dual-polarization generated date generally associated with weather events for mapping data, producing geo-referenced data, producing mosaics, generation of conditional precipitation masks, production of vertical cross sections and predetermined fly throughs, producing short term forecasting, prediction of specific weather phenomenon, correcting or adjusting rain gauge data as well as quantitative precipitation estimation, and combining other meteorological data to correct or adjust estimated rainfall accumulation gathered by dual-polarization radar.

The invention relates to a device for operating a parking lock of an automatic transmission in motor vehicles, with pawl which interacts with a ratchet wheel, which pawl is impinged upon by a spring energy accumulator (24) and for disengaging the parking lock can be hydraulically impinged upon against the preload force of the spring energy accumulator (24) by a hydraulic transmission control with corresponding control valves, wherein the control valves are controllable in accordance with operating parameters of the motor vehicle and a electromagnetically operable locking element (28), which in the controlled state in defined operating conditions additionally holds the pawl in the disengaged position. According to the invention, a purely hydraulically acting self locking valve (40) is integrated in the hydraulic transmission control (10), which locking valve maintains the controlled system pressure when the parking lock operation (14) is pressurized or when the parking lock is disengaged.

The invention discloses a method for enhancing permanent magnet synchronous motor rotor position detection precision. The method comprises the steps that phase closed loop control of a high-frequency injection signal is introduced for phase compensation on the basis of conventional position estimation via a rotating high-frequency voltage signal injection method so that high-frequency signal phase delay generated by inverter dead zone time and IGBT stray capacitance is eliminated and thus the caused position detection error is avoided. The method is easy to realize, position detection precision of the rotating high-frequency voltage signal injection method is effectively enhanced and application range is widened.

A method for detecting out fault point of earthing for DC power includes adding passive constant current circuit between nonearthing bus and earthing, measuring voltage value of bus to earthing and current value on each subcircuit calculating out insulation resistance value based on specific value of the two for confirming earthing subcircuit, using portable Hall mutual inductor to find out fault point along the subcircuit. A detection circuit of the method is also disclosed.

The invention relates to a method for eliminating self interference of multiple same-time same-frequency full-duplex radio frequency sub bands. The method can effectively improve the broadband radio frequency self interference elimination performance. The method comprises the steps that firstly, sending signals are divided to two paths, one path of sending signals are sent to a transmitting antennas to radiate out wireless signals, and the other path of sending signals are sent to a radio frequency counteracting unit; the signals entering the radio frequency counteracting unit are divided to multiple sub band signals through multiple parallel band-pass filters, and radio frequency self interference signals are reconstructed; finally, the reconstructed radio frequency self interference signals counteract the self interference signals received by the antennas, the attenuation coefficients of all modules are regulated through an amplitude adjustment algorithm, and the best self interference signal counteracting effect is achieved. Compared with the prior art and method, the method for eliminating the self interference of the multiple same-time same-frequency full-duplex radio frequency sub bands divides the broadband radio frequency self-interference signals to multiple narrow-band signals, only the amplitude attenuation parameter needs to be regulated, and therefore the method is easy to implement, reliable, and better in performance.

The invention discloses an aerobic repairing system and a repairing method of a solid waste area. The system comprises a gas injection air extractor, a liquid injection liquid extraction device, a detection device, a control device, a gas injection well, a gas extraction well, a liquid injection well, a liquid injection tube, a liquid extraction well and a detection well and the like, wherein the gas injection well, the gas extraction well, the liquid injection well, the liquid injection tube, the liquid extraction well and the detection well are connected with the gas injection air extractor, the liquid injection liquid extraction device, the detection device and the control device and arranged in the solid waste area. According to the invention, a method for comprehensively adjusting and controlling the operational parameters, such as gas injection amount, gas extraction amount, liquid injection amount, liquid extraction amount, temperature and humidity and the like is adopted, thus an aerobic reaction in the solid waste area is ensured to be carried out at an optimum condition, the organic matters and pollutants in the solid waste area are transferred, absorbed, degraded or transformed, and the contents and concentrations of the organic matters and pollutants are lowered to an acceptable level, thereby realizing the target of comprehensive ecological improvement.

The invention relates to an operating state circuit for driving an inverter with half-bridges having respective switching devices, which inverter supplies an n-phase supply voltage to an n-phase electrical machine via phase connections associated with the respective half-bridges, where n≧1. The operating state circuit comprises an evaluation device, which is connected to the phase connections of the inverter and to input connections of the inverter and is designed to detect an input voltage of the inverter and phase currents at the phase connections of the inverter, and a drive device which is coupled to the evaluation device and is designed to switch the inverter from a short-circuit state to a freewheeling mode on the basis of the detected input voltage, wherein the evaluation device is designed to generate a freewheeling trigger signal and to output said signal to the drive device if the detected input voltage is lower than an adjustable freewheeling threshold value, and wherein the drive device is designed to change the respective switching devices of the half-bridges to an open state after receiving the freewheeling trigger signal only when the particular phase current detected at the associated phase connection has a zero crossing or a current direction coming from the inverter.

The invention provides a pressure energy recycle device for a high-pressure hydrogen storage tank of a hydrogen fuel cell automobile. The pressure energy recycle device comprises a high-pressure hydrogen tank (1) and a pressure energy recycle system (2), wherein the pressure energy recycle system (2) comprises a one-stage or multi-stage expansion system, each-stage expansion system comprises an expansion machine (3) and a heat exchanger (4), and high-pressure hydrogen flows out of the high-pressure hydrogen tank (1) and sequentially flows into each-stage expansion system; and in each-stage expansion system, temperature and pressure are reduced by the expansion machine (3), work is externally output and flows into the heat exchanger (4) for heat absorption and temperature rising, the working temperature is increased, so that the constant-temperature process is approximated during the expansion process of the pressure energy recycle device, and more expansion work is output. By the pressure energy recycle system (2), pressure energy in the high-pressure hydrogen tank is recycled, and the energy utilization ratio is improved.

The invention discloses a method to avoid abnormal deadlock of a host computer in accessing shared device. The host computer sets an access conflict mark for the shared devices. When the low priority task accesses the shared device, and requires whether operation achieving mark of the shared devices is set as 1 in a circular manner, the host computer interrupts a service routine or a high priority task interrupts the lower one and accesses the shared devices, and requires whether operation achieving mark of the shared devices is set as 1, the host computer cleans the mark as 0 and sets the access conflict mark as 1. Along interruption returns or task re-transfer, the low priority task is executed continuously, and detects the operation achieving mark that is 0, the access conflict mark that is 1, the host computer escapes circular requirement (or the task enters deal circle, causing deadlock), re-accesses the shared devices. The technical solution of the invention can avoid the deadlock. Because of simple and reliable method, the invention is in particular applied to the embedded system field with a low-performance processor and inadequate memory resources.

A drive arrangement for a bicycle including a chainring having a chainring axis, a plurality of different rear sprockets, the plurality of rear sprockets sharing a sprocket axis, a drive chain that runs around the rear sprockets and the chainring and in meshing engagement with a selected active sprocket of the plurality of rear sprockets and the chainring, and a rear derailleur. The rear derailleur is configured to shift the chain over a plurality of sprockets having a difference in tooth count of over 25 teeth ranging from a smallest to a largest sprocket.

The invention discloses a full-bridge soft-switching DC converter, which includes a transformer primary circuit and a transformer secondary circuit. The primary circuit includes an input power supply, first to fourth switch tubes, and an isolation transformer primary winding; wherein the first The first switch tube and the third switch tube, the second switch tube and the fourth switch tube respectively form two half-bridge circuits, and the two ends of the two half-bridge circuits are respectively connected to the positive pole and the negative pole of the input power supply, and the primary side of the isolation transformer The two ends of the winding are respectively connected to the middle points of the two half-bridge circuits; the first and second clamping switch tubes are sequentially connected in series between the two bridge arms of the two half-bridge circuits. In the present invention, by using the synchronous rectification driving signal of the secondary side to control the switching time of the two auxiliary switching tubes of the full-bridge converter, the collected leakage inductance energy of the primary-side transformer can be released within the dead time, and the full-bridge converter main The ZVS soft switching of the switching tube has low EMI interference and high efficiency.

The method comprises: according to current traffic of each shared radio system, determining a host system and a firstly-selected rental system, and according to its traffic state, variably and dynamically adjusting the virtual boarder of the host system and the boarder of the firstly-selected rental system so as to dynamically set the private spectrum of the host system, the private spectrum of the firstly-selected rental system and the shared spectrum of the shared spectrum pool. The spectrum needs of the host system user are satisfied in its private spectrum, and its corresponding firstly-selected rental system also rents the spectrum block in the private spectrum of the firstly-selected rental system; between the private spectrum blocks in same there is no need to set the guard band so as to decrease the numbers of guard band and improve the spectrum utilization.

The invention is suitable for the technical field of three-phase electric energy meters and provides an intelligent identification type electric energy meter. The intelligent identification type electric energy meter comprises a three-phase switch power source, an MCU module, a phase-B and null line switching circuit and an electric energy metering and electric energy meter function module. The three-phase switch power source comprises a null line judging circuit, a three-phase three-line full-bridge rectifying circuit, a three-phase four-line half-bridge rectifying circuit, an intelligent voltage reduction circuit, a null line lacking signal output circuit and a DC-DC switch power circuit. The three-phase switch power source is connected with the MCU module, the phase-B and null line switching circuit and the electric energy metering and electric energy meter function module and supplies power to the MCU module, the phase-B and null line switching circuit and the electric energy metering and electric energy meter function module. The electric energy metering and electric energy meter function module achieves the measurement of three-phase input voltage, the metering of electric energy and the basic function of the electric energy meter. The MCU module is in control connection with the phase-B and null line switching circuit and the electric energy metering and electric energy meter function module and receives output signals of the null line lacking signal output circuit. Adaptive wiring is completed internally according to judgment signals, and electric energy meter wiring does not need to be specially handled for different wiring modes.

The invention relates to an injection mold manufacturing method based on CAD / CAE / CAM. The method includes the steps of a, designing a mold, to be more specific, using three-dimensional software to build 3D models of the structural parts of the mold, and manufacturing the general assembly drawing of the mold; b, manufacturing the engineering drawing of each part and setting a mold tolerance standard; c, manufacturing the injection mold, to be more specific, CAM tool path programming and importing a CNC manufacturing process, an EEM manufacturing process, a WEEM manufacturing process and a grinding process; d, soaking the mold in special plant oil for more than 24 hours; e, detecting the mold. The method has the advantages that a mold prototype drawing CAD design link can avoid problems in actual machining according to graphic simulation analysis, overall mold design is further optimized, and subsequent processes can be implemented reliably; due to the fact that the mold is soaked in the plant oil for more than 24 hours, the precision of the mold can be increased evidently, the service life of the mold is prolonged evidently, and the yield of injection molding products is increased evidently.