2256results about How to "Reduce failure rate" patented technology

Disclosed is a system for the treatment of cerebral aneurysms using a stent and a aneurysm pocket fill structure delivery system. One embodiment of the present invention uses a highly radiopaque, drug eluting stent that is deployed with its sidewall over the ostium of the aneurysm pocket. A fill structure delivery catheter is then advanced through the patient's vascular system until the catheter's distal end is situated within the aneurysm pocket. Compressed aneurysm pocket filling structures are then pushed through the fill structure delivery catheter. As the aneurysm pocket filling structures emerge from an opening in the catheter's distal end, they promptly expand so that their minimum dimension is sufficiently large so that they cannot pass through the spaces between the struts of the stent that cover the ostium of the aneurysm pocket.

Disclosed are a dynamic spectrum allocation method, a center control unit, a BS (Base Station) and a spectrum allocation system. The dynamic spectrum allocation method comprises the steps of: receiving a bandwidth request message sent by the BS, wherein the bandwidth request message comprises a RF (Radio Frequency) ability of the BS, bandwidth requests on UFBs (Unlicensed Frequency Bands) of the BS, and a gather of LFBs (Licensed Frequency Bands) of the BS; determining a spectrum allocation plan according to the RF ability of the BS, the bandwidth requests on the UFBs of the BS, the gather ofthe LFBs of the BS and a obtained gather of the UFBs which are idle at present; and sending a bandwidth request response message which comprises the spectrum allocation plan, wherein the spectrum allocation plan is used for indicating UFB information allocated for the BS for use, and needs for gathering the bandwidth request of at least one LFB in the gather of the LFBs of the BS to the USF whichis allocated for the BS for use. Embodiments of the present invention also comprise the center control unit, the BS and the spectrum allocation system, thus failure probability of the spectrum allocation plan can be effectively reduced.

The present invention relates to a method of balancing a load and method of setting up a call using the load balancing method in a General Packet Radio Service (GPRS) network, which prevents a load from concentrating on a specific Gateway GPRS Supporting Node (GGSN) in the GPRS network, thus reducing a probability of failure in session establishment due to increased traffic. In the load balancing method, when a Service GPRS Supporting Node (SGSN) connected to a mobile node establishes a session, it selects a GGSN having a smallest number of established sessions among a plurality of GGSNs corresponding to an Access Point Name (APN) included in an Activate PDP Context Request message received from the mobile node and requests the selected GGSN to establish a session, thus solving a problem in which a load concentrates on a specific GGSN.

A target object gripping apparatus comprises: an estimation unit configured to estimate an orientation of a target object based on orientation estimation parameters; a gripping unit configured to grip the target object based on the orientation of the target object estimated by the estimation unit; a detection unit configured to detect a failure of gripping by the gripping unit; and a modifying unit configured to modify the orientation estimation parameters based on the orientation of the target object when the detection unit detects a gripping failure.

The invention relates to a photovoltaic array fault diagnosis and early warning method comprising the following steps: combining an Elman nerve network optimized by a non-linear least square method and a decision tree with experience knowledge so as to form a fault diagnosis model; collecting present photovoltaic array operation data and meteorology data, and computing errors when compared with historical normal state data; using the fault diagnosis model to obtain the corresponding fault type and credibility when the error is bigger than a threshold; finally integrally evaluating so as to obtain the final fault type credibility, and selectively carrying out fault early warning according to the credibility values; updating a fault knowledge base according to the field actual measurement conditions. The method combines the LM-Elman nerve network and the decision tree with experience knowledge so as to built the fault diagnosis model, thus improving the history data sensitivity, providing better prediction effect when compared with a BP network, and improving the network convergence speed and training precision; the experience knowledge is supplemented, thus providing stronger robustness; the method can timely detect and diagnose, thus reducing fault incidence rate, and ensuring the photovoltaic power station to stably work.

Medium access control device (301) for a mobile network station (3, 4, 5) or an access point (AP1) in a wireless local area network (1), having controlling means (302), processing means (303) and transmitting and receiving means (304); the controlling means (302) being arranged to control transmission and reception of radio frequency data signals containing data symbols; the transmitting and receiving means (304) being arranged for transmission and reception of electromagnetic data signals; the processing means (303) being arranged for detecting a first signal portion and a second signal portion in the received data signal, the second signal portion following the first signal portion and having a signal coding differing from a signal coding of the first signal portion.

It relates to an energy utilization and recovery unit type all-air air conditioning system in heat ventilation and air conditioner engineering. It comprises return bellow, exhaust bellow, entry bellow and new bellow, with exhaust valves set between the return and exhaust bellows, return valve set between the return and entry bellows, new valve set between the entry and new bellows and by-pass valve between the new and exhaust bellows. The return bellow is made of air return, controller and return air filter. The exhaust bellow is made of exhaust outlet, exhaust machine and exhaust condenser. The entry bellow is composed of entry, reheated condenser, entry machine, humidifier, and evaporator. And the new bellow is composed of new wind filter, new wind inlet, and compressor. Through optimized combination of all the bellows, program self controlled running for corresponding air flow channels regulating under different running conditions, it can realize the best energy utilization and recovery. The all-air air conditioning system can be used for big space air conditioner, multi process air conditioner and those demanded whole year running.

The invention discloses an electric pressure cooker based on an internet of things technology. The electric pressure cooker comprises an electric pressure cooker and strong algorithm software, wherein the electric pressure cooker serves as a thin client for running a weak algorithm, and controls strong algorithm of the electric pressure cooker to be arranged on the strong algorithm software; the strong algorithm software can be downloaded to a central control system of an intelligent housing system; the central control system and the electric pressure cooker perform communication based on Internet of things, and are connected with each other through a wireless communication mode or a wire communication mode. By the external strong algorithm, a user can look up data of all sensors in the electric pressure cooker on the central control system or a terminal device to change algorithm strategies according to the requirements, conveniently perform accurate control according to practical situations or use requirements, and relatively flexibly and individually use the electric pressure cooker.

A UE does not immediately perform handover after receiving a handover command from a serving base station, but instead backups that message and continuously compares the signal strength of a serving base station and the signal strength of a target base station and performs a handover to the target base station at the best timing when handover is required. Once the timing of handover is determined, the UE transmits a handover indication message to the serving base station, and thereafter the UE performs a handover to the target base station.

Submount substrates are connected to both sides of a laser diode via hard solders. The lower submount substrate and a heat sink are connected together by a soft solder. The heat sink and a presser electrode are fixed with a predetermined gap therebetween via an insulating spacer. A coil electrode is fitted in a V-shaped groove of the presser electrode. As the coil electrode is deformed slightly elastically, the coil electrode is pressed against the upper submount substrate.

A wind power installation having external and / or internal redundancy derived by multiple, independent power generating systems arranged in parallel, but switchably interconnected to allow substantial continued operation in the event of a critical component failure.

The invention discloses a cross-layer route optimization method and a cross-layer route optimization device for a wireless Mesh network. The method comprises the following steps of: estimating the channel state of a current network according to the transmission efficiency parameter of a wireless link, judging the major cause of current packet loss according to a packet success ratio and a residual load rate when the channel state is poor, and adjusting the maximum retransmission time according to the packet loss cause; and acquiring the transmission efficiency PTEP of an entire route according to the transmission efficiency parameter of the wireless link, acquiring the residual load rate L-P of the route from which a source node and a target node are removed, computing the effective bandwidth etaB(c) of the route, constructing a route decision function according to the transmission efficiency PTEP of the route, the residual load rate L-P of the route and the effective bandwidth etaB(c) of the route, performing route discovery and route maintenance operation by using the route decision function, and selecting an optical packet transmission route between the source node and the target node. According to the invention, the route quality of an MAC (Media Access Control) layer can be sensed more accurately, and the error judgment times of the route are reduced.

The embodiment of the invention discloses an insulated gate bipolar transistor-driven protective circuit which comprises a signal transmission circuit, a gate pole driving circuit, a voltage detecting circuit and a blocking time setting circuit, wherein the signal transmission circuit is used for transmitting a driving signal to the gate pole driving circuit; the gate pole driving circuit is used for amplifying the driving signal from the signal transmission circuit, and then driving an insulated gate bipolar transistor to act through the amplified driving signal; the voltage detecting circuit is used for transmitting a fault indicator signal to the blocking time setting circuit once the voltage between a collecting electrode and an emitting electrode of the insulated gate bipolar transistor is detected over a set voltage threshold, wherein the voltage threshold is more than the driving voltage of the insulated gate bipolar transistor; the blocking time setting circuit is used for transmitting a locking signal to the signal transmission circuit after receiving the fault indicator signal from the voltage detecting circuit; and the signal transmission circuit also can be used for blocking and outputting the driving signal to the gate pole driving circuit after receiving the locking signal from the blocking time setting circuit. With adoption of the insulated gate bipolar transistor-driven protective circuit, misinformation of a short circuit fault can be avoided.

The invention provides an express cabinet and a working method thereof. The express cabinet comprises a cabinet body, a control unit and a storing and taking unit, wherein the cabinet body comprises a casing and storage racks; a control module display window and a storing and taking window are formed in the front of the casing; each storage rack adopts a structure that multiple support poles are vertically arranged in rows at equal intervals in the casing in the horizontal direction, and each support pole adopts a structure that a plurality of cross rods are arranged at intervals on one vertical rod in the vertical direction; the storing and taking unit comprises a manipulator and a driving mechanism, the driving mechanism can drive the manipulator to move vertically or horizontally, the manipulator comprises two parallel stretching arms which can stretch and retract forwards and backwards, the distance between the two stretching arms can be adjusted, and the width of each stretching arm is smaller than the interval between every two adjacent support poles. Express items are all accommodated into the storage racks, and the safety is high. The space unitization rate for express item storage is increased greatly, and the express item accommodating capacity of the express cabinet is improved.

The invention discloses data redundancy and file operation methods based on a Hadoop distributed file system (HDFS). The file operation method comprises the processes of file writing, file reading, file adding and file deletion. The file writing process comprises the following steps of: giving a file writing request by a client; allocating main nodes; segmenting a file; generating and storing basic blocks; generating and storing coding blocks; and reporting the main nodes. The file reading process comprises the following steps of: giving a file reading request by the client; selecting the main nodes; sending information data; according to the information data, restoring an original file; and reporting the main nodes. The file adding process comprises the following steps of: giving a file adding request by the client; querying file information; allocating the main nodes; segmenting an added file; generating and storing the basic blocks; generating and storing the coding blocks; and reporting the added file. The file deletion process comprises the following steps of: giving a file deletion request by the client; processing the file name of the file to be deleted; deleting a hidden file; deleting isolated block metadata; and deleting any block. The invention has the advantages of high read-write performance and efficiency and reliability in storage, and can be applied to storage and management of the HDFS under the access of a great number of clients; and storage resources are saved.

A wind power installation having external and / or internal redundancy derived by multiple, independent power generating systems arranged in parallel, but switchably interconnected to allow substantial continued operation in the event of a critical component failure.

The invention discloses a face alignment method based on cascade position regression of random forests. The face alignment method is characterized in that 1, a normalized face image is acquired; 2, the average shape of the faces can be calculated; 3, a candidate feature point of a face alignment frame is generated; 4, a face shape index grey level is generated; 5, a face shape index feature X is generated; 6, a face alignment frame is built; 7, the face shape is initialized, and after the continuous iteration, the final estimated face shape can be output. The good robustness can be kept under the conditions of the changing illumination, the changing expressions, and the shielding, and the precision can be improved, and the failure rate can be reduced.

The invention provides a light-emitting-charge-transmitting compound, an ink comprising same, a preparation method thereof and a QLED device. The light-emitting-charge-transmitting compound comprises a nuclear shell quantum point which has a nucleus and a housing layer; a charge transmission part which is made of inorganic nanometer crystal; and a crosslinking part through which the housing layer is connected with the charge transmission part. The nuclear shell quantum point as a light emitting layer in prior art is crosslinked with the charge transmission part as a transmission layer through the crosslinking part, thereby realizing integration of a light emitting function and a transmission function in one compound. Furthermore in manufacture of the QLED device, the film structure which is formed by the light-emitting-charge-transmission compound has the light emitting function and the transmission layer function. Therefore the film layer with two functions can be formed through a one-time solution method, thereby reducing number-of-times of solution method applications, and furthermore simplifying a QLED device manufacture process.

The invention relates to a service function chain reliable deployment method based on deep reinforcement learning, and belongs to the technical field of communication. The method comprises the following steps: S1, obtaining a reliability value based on the reliability measurement mode of the equipment use degree and the peripheral safety coefficient; S2, preliminarily determining a reliability demand of each virtual network function through the functional characteristics and the topological characteristics; S3, obtaining the deployable length of the link reliability requirement meeting the virtual link reliability requirement; S4, searching an optimal mapping scheme suitable for the virtual network environment and the base environment by using deep reinforcement learning based on each reliability demand; and S5, if the VNF reliability cannot be satisfied in the mapping process, using an importance-based node backup method, and if the link deployment result does not satisfy the link reliability, using a link backup importance-based link backup method. The method can effectively deal with basic faults on the basis of ensuring reliability requirements, reduces the number of failure SFC, and ensures load balance to make the whole virtual network more stable and reliable.

The invention discloses a running state monitoring and failure diagnosis method for a tobacco logistics system. The method comprises the following steps: (1) acquiring the whole running state information of the logistics system in real time on line through a data acquisition system; (2) remotely monitoring the state of common logistics system equipment in real time, and performing failure diagnosis; (3) firstly, determining various combination modes of the failure reasons of each key logistics equipment, and secondly, inputting a diagnosis rule into an SQL (Structured Query Language) database of a failure diagnosis server, wherein the diagnosis rule serves as the source of a failure experience knowledge base; (4) storing failure result information which is obtained by automatic diagnosis through the failure diagnosis server and serves as alarm information into a failure alarm record base, triggering a wireless alarm module, and informing an on-duty equipment maintainer of failure information immediately in a short message mode. According to the method, the failure burst rate of the tobacco logistics system is effectively reduced, the failure maintenance efficiency is improved, and the equipment maintenance cost is reduced.

The invention relates to a method for carrying out online monitoring on an operating state of a transformer OLTC (on-load tap-changer) and belongs to the field of signal monitoring. The method comprises the following steps of: acquiring a mechanical vibrating signal of a box wall of a transformer in real time; carrying out phase space reconstruction on the vibrating signal x(t) by using a delay coordinate method; determining a designated area V of a reconstructed phase space; calculating density distribution of space phase points; calculating a correlation coefficient rho of a space density curve before and after the OLTC actuates; if the correlation coefficient rho is more than 0.8, judging that the operating state of the OLTC is normal; and if the correlation coefficient rho is less than 0.8, judging that the operating state of the OLTC is abnormal. By carrying out real-time monitoring on the vibrating signal in the actuating process of the OLTC, efficient and accurate judgment on the working state of the transformer OLTC can be implemented. The method can be widely used for the field of online monitoring and fault diagnosis of various transformer OLTCs.

The present invention belongs to the technical field of power electronics, in particular to an IGBT drive and protection circuit which can effectively realize power-down protection and can not be switched on by mistake. The IGBT drive and protection circuit comprises a common-emitter amplifying circuit, and a push-pull drive circuit and IGBT, wherein the common-emitter amplifying circuit is provided with a PWM signal input terminal for amplifying PWM signals, and the push-pull drive circuit is provided with a VDD power supply input terminal for receiving power from a VDD power supply. An NPN triode is connected between the common-emitter amplifying circuit and the PWM signal input terminal. The PWM signal input terminal is led out from the emitter; a base electrode of the terminal is provided with a VCC power supply input terminal through a resistor for receiving power from a VCC power supply; and a collecting electrode of the terminal is connected with the VDD power supply input terminal through a resistor. The IGBT drive and protection circuit has functions of power-down protection, gate protection and overvoltage protection for collecting electrodes, and is stable and reliable.

The invention discloses a bread rapid making method, a bread automatic making machine and a bread ingredient box, wherein the bread automatic making machine and the bread ingredient box are matched with the bread rapid making method. The method is characterized by putting bread ingredients into the bread ingredient box for packaging according to an appropriate recipe, and then putting the bread ingredient box with an open mouth facing downwards into the bread automatic making machine, adding water into an inner container of the bread automatic making machine after the bread machine is operated to enable a sawtooth bar inside a hanger which is arranged above the inner container to puncture a thin film on the bread ingredient box so that bread ingredients can fall off into the inner container, closing an outer shell of the bread automatic making machine, starting the inner container of the bread automatic making machine and conducting a cooking process which includes mixing, stirring and heating for the bread ingredients, and finally, taking out the inner container and bread which is molded already in a baking mode. By means of the scheme, the preparation time of the bread ingredients is saved greatly, so that the bread ingredient box is changed into a standardized module, and meanwhile, the whole break baking operation is also simplified, the potential risks caused by wrong bread ingredients are prevented, and the failure rate of homemade bread is reduced.

A system (and method) for linking wireless and land line communications media, includes a connector for connecting a communications media, and an indicator for alerting a user of the state of a connection. The connector automatically initiates a continuous reestablishment operation after the indicator announces a state of disconnection and in which the system provides a conferencing capability using the Internet. A handset to be used in voice communications includes a housing including a receiver and transmitter for connecting to a computer network, a plurality of wireless protocols for use with the transmitter, and a universal telephone port coupled to the housing for connecting to a universal telephone jack.

The invention provides a method, device and system for processing a fiber channel identity, and network equipment. The method comprises the following steps of: receiving a first fabric login (FLOGI) or a first fabric discovery (FDISC) sent by host equipment, wherein the first FLOGI or the first FDISC comprises an equipment identifier of an N port of the host equipment; selecting a FC ID (Fiber Channel Identity) from pre-applied non-distributed FC IDs according to the first FLOGI or the first FDISC; and encapsulating the selected FC ID into a first LS_ACC (Link Service Accept) and sending the first LS_ACC to the host equipment. In the technical scheme disclosed by the invention, by pre-applying the FC ID, when the host equipment applies for the FC ID, the FC ID can be directly distributed to the host equipment from the pre-applied FC IDs; therefore, an interaction link is omitted when the host equipment applies for the FC ID; and the problem of FLOGI or FDISC failure of the host equipment caused by delayed FC ID distribution is solved.