38results about How to "Improve rollback efficiency" patented technology

The invention discloses a method and a device for realizing wireless firmware update, aiming at solving the problem that a user terminal can not be used because of the failed updating of the firmware to be updated in the prior art. The method comprises the following steps: receiving the update notice sent by a device management server; obtaining a differential packetization corresponding to the firmware to be updated from the device management server according to the hardware update notice; and adopting a set update mode, generating an update edition of the hardware to be updated in a storage space allocated for hardware update treatment according to the differential packetization, and storing the update edition in the storage space. By adopting the technical scheme, the invention improves the update effectiveness of the hardware and the backoff efficiency of an update zone.

The invention relates to a process optimization technology, and provides a bill data rollback method and system. The method comprises the following steps that receiving party equipment receives a billdata auditing request which is sent by billing party equipment and carries a bill identifier; the receiver equipment searches the bill data of the current latest version corresponding to the bill identifier from the block chain node according to the bill data auditing request; the receiver device displays the bill data to a receiver reviewer through a receiver review interface, and obtains reviewopinion data triggered by the receiver reviewer for the bill data; when the audit opinion data indicates that the audit fails, the receiver device inquires a receiver backup bill data corresponding to the bill identifier, and sends the receiver backup bill data and the audit opinion data to the blockchain node; and the sent receiver backs up the bill data and the audit opinion data, and is used for indicating the blockchain node to write the receiver backup bill data and the audit opinion data into the data block. The method can improve the bill data rollback efficiency.

The invention relates to the field of communication, and particularly relates to a network data backspace method and a backspace device. When data backspace is needed, a data snapshot of the second time label point is compared with the data snapshot of the first time label point, and characteristic data with difference are found; characteristic data which needs backspace is selected among the characteristic data with difference, and data backspace is carried out according to backspace rules preset in advance, and partial or all network data of the second time label point are backspaced to the network data state of the first time label point. Partial or all data with difference of data snapshot of the two time labels are backspaced using characteristic data as unit according to the invention.

The invention provides a data rollback method which comprises the following steps: under the condition that any database data operation corresponding to a transaction fails, obtaining all transactionlogs corresponding to the transaction according to pre-generated transaction log index information corresponding to the transaction; and according to all transaction logs corresponding to the transaction, concurrently executing a rollback operation of submitting data of all databases corresponding to the transaction. The invention further discloses a data rollback system and device and a computerreadable storage medium, and by implementing the scheme, the rollback speed and the rollback efficiency of the data in the database can be effectively improved; and meanwhile, by binding variables, the security of the data, the rollback speed of the data and the rollback efficiency of the data can be effectively improved.

The invention provides a block chain state data storage and rollback method and device and a storage medium, and the method comprises the steps: setting the block height of a check point, and settinga check interval: writing the first state data of a first block into a first pre-writing log, and enabling the first pre-writing log to uniquely correspond to the first block; storing the first pre-written log in a temporary database; whether the first block height of the first block is a set first stable check point or not is judged, if yes, the temporary database is traversed, the content is persisted into a bottom-layer database, and meanwhile a pre-written log of a first check interval in the temporary database is deleted. According to the method, the state data in front of the stability check point is persisted into the disk database; the state data stored in the disk is ensured to be consensus, the correctness of the state data is greatly improved, and new state data can be generatedwithout deleting the disk to recalculate the log during rollback, so that the rollback efficiency is greatly improved.

The invention discloses a Doherty amplifier comprising a shunt module used for separating a part of to-be-amplified signals, wherein a first output end and a second output end of the shunt module separately output the part of to-be-amplified signals after shunting; a first power amplifier module used for amplifying the signals from the first output end of the shunt module and outputting the amplified signals to a first input end of a combiner module; a second power amplifier module used for amplifying the signals from the second output end of the shunt module and outputting the amplified signals to a second input end of the combiner module; the combiner module used for combining the amplified signals; and a grid voltage regulation and control module used for regulating a grid bias voltage provided by a low pass filtering module for the second power amplifier module according to the magnitude of another part of to-be-amplified signals. The Doherty amplifier disclosed by the invention can provide greater saturated output power and higher fallback efficiency, and has broad application prospects for application occasions requiring high-efficiency amplifiers, such as base stations and so on.

The invention discloses a broadband Doherty power amplifier, comprising a power divider, a main power amplification network, an auxiliary power amplification network and a broadband compensation network. The broadband compensation network is the compensation network which is composed of a capacitor, an inductor, a resistor and a microstrip and has a special structure. According to the broadband compensation network, a phase compensation effect can be achieved in a relatively wide band, a signal can be amplified efficiently in a relatively wide frequency range, the relatively high backoff efficiency is achieved in the band, and in particular, the ultrahigh efficiency is achieved at a 6dB power backoff position. Through adjustment of parameters of the compensation network, the broadband Doherty power amplifier can be generalized to the Doherty power amplifiers of other bands, and the broadband Doherty power amplifier has wide application prospect and practical value.

The invention discloses a radio frequency power amplification circuit based on an artificial nonlinear matching network, and the input end of a power amplification transistor is connected with a radiofrequency signal input port and a radio frequency detection unit through an input matching network and a phase compensation network. The output end of the power amplifier transistor is connected witha radio frequency signal output port through an artificial nonlinear matching network; wherein the radio frequency detection unit is respectively connected with the artificial nonlinear matching network and the phase compensation network after sequentially passing through the comparison judgment unit, the cross-coupled logic inverter and the control signal generation and buffer unit, and the connection of elements in the artificial nonlinear matching network is configured through a power detection and logic control radio frequency switch. The power amplifier transistor can obtain the optimalload impedance at two or more power points. According to the invention, the power amplifier transistor can obtain the optimal load impedance at two or more power points, and a single-branch and large-bandwidth scheme is provided for the design and implementation of a radio frequency power amplification circuit with enhanced fallback efficiency.

The invention discloses a data rollback method, a device, equipment and a storage medium. The method comprises the following steps: determining to-be-rolled metadata according to a bitmap for identifying metadata modified due to data redirection after a rollback instruction is received; updating the to-be-rolled-back metadata stored in the snapshot volume to the source volume according to the determined storage position recorded in the to-be-rolled-back metadata; and resetting the identifier of the bitmap, and completing a rollback task. According to the method provided by the invention, whendata rollback is carried out, the service data in the snapshot volume does not need to be copied into the source volume, and only the metadata needs to be copied, so that the data rollback operation can be quickly completed, the waiting time and the data copying amount required for rolling back the data are greatly reduced, and the data rollback efficiency is effectively improved.

The invention discloses a snapshot rollback method which comprises the following steps: when a rollback instruction is received, recovering a current object state table of a logical volume according to the rollback instruction to obtain an original object state table; performing comparative analysis on the current object state table and the original object state table to determine a change objectin the logical volume; initiating a rollback request about the change object to a storage layer, so that the storage layer rolls back the data in the change object according to the rollback request; according to the snapshot rollback method, the snapshot rollback efficiency is greatly improved. The invention further discloses a snapshot rollback device, snapshot rollback equipment and a computer readable storage medium, which all have the above beneficial effects.

The invention provides a speed control device for backtrack of an electrode original path in electric machining process, and the speed control device comprises a single board computer, an actuator, a motor and an electrode which are connected in sequence. The actuator is connected with a numerical control system through data wires. In the electric machining process, the speed control device for backtrack of the electrode original path can carry out speed adjustment for backtrack of the electrode original path according to a processing technical algorithm, thereby improving backtrack efficiency of the electrode original path and the electric machining efficiency.

The invention provides a high-backspacing-efficiency power amplifier based on a distributed input and output structure. The high-backspacing-efficiency power amplifier comprises a main power amplifier, an auxiliary power amplifier, a distributed power synthesis network located at the output end of the main power amplifier and the output end of the auxiliary power amplifier and a distributed matching network located at the input end of the auxiliary power amplifier. According to the high-backspacing-efficiency power amplifier based on the distributed input and output structure, the problem of bandwidth limitation of a Doherty power amplifier is solved, and the broadband high-backspacing-efficiency performance can be achieved on the integrated circuit technology.

The embodiment of the invention discloses a transaction rollback method based on data processing and related equipment. The method is applied to the technical field of finance. The method comprises the steps of receiving a return request for a to-be-returned transaction sent by a terminal, searching a historical repayment plan matched with the borrowing identification of the to-be-returned transaction, determining a target repayment period corresponding to the transaction time of the to-be-returned transaction from the at least one repayment period; deleting the repayment sub-plans of the target repayment period and each repayment sub-plan after the target repayment period from the historical repayment plans to obtain a first payment plan; on the basis of the repayment record information indicated by each repayment sub-plan before the target repayment period, reconstructed the repayment sub-plan of the target repayment period and each repayment sub-plan after the target repayment period in the first repayment plan, obtaining a second repayment plan after the to-be-repaid transaction is refunded. By adopting the method and the device, the rollback efficiency of the repayment transaction can be improved.

The invention provides a load modulation differential power amplifier, a base station and a mobile terminal. The load modulation differential power amplifier comprises a main power amplifier branch and an auxiliary power amplifier branch, the main power amplifier branch comprises a main power amplifier unit, the auxiliary power amplifier branch comprises a differential power amplifier, the outputend of the main power amplifier branch is connected with one output terminal of the auxiliary power amplifier branch, and the other output terminal of the auxiliary power amplifier branch is connectedwith a rear matching network. The load modulation technology is applied to the differential power amplifier, the broadband advantage of the differential power amplifier is reserved, high fallback efficiency similar to that of a Doherty power amplifier can be achieved, and the load modulation differential power amplifier has huge application prospects in a communication system.

The invention relates to a linear efficient multi-body power amplifier based on harmonic impedance matching, which is characterized in that on the basis of a traditional Doherty power amplifier structure, a simple circuit structure is utilized to match an input / output fundamental wave resistor and a harmonic wave resistor of a sub-power amplifier of the power amplifier, so that the efficiency of the sub-power amplifier is improved; the saturation output power and the saturation output current of a peak power amplifier are improved by matching the input / output fundamental wave impedance, the second harmonic impedance and the third harmonic impedance of the peak power amplifier for the first time, so that the Doherty power amplifier has better load modulation; and finally, a carrier power amplifier is biased in the class AB, so that the linearity of the Doherty power amplifier in a low-power region is ensured, meanwhile, a proper peak power amplifier gate bias voltage is selected, and the linearity of the Doherty power amplifier in a high-power region is finally ensured by utilizing the mutual influence effect of the carrier power amplifier and the peak power amplifier.

The invention discloses a Doherty power amplifier which comprises a quadrature coupler which comprises a first coupling inductor and a second coupling inductor, and the quadrature coupler is used for dividing an input signal into a first signal and a second signal; the first amplifying circuit is used for amplifying the first signal; the second amplifying circuit is used for amplifying the second signal; and the load modulation network is an output voltage synthesis type Doherty load modulation network adopting T-type model equivalence. The overlapped part of the coupling inductor is used for providing distributed stray capacitance, so that an extra capacitor does not need to be arranged in the orthogonal coupler, and the area is reduced; a quarter-wavelength line is equivalent to the load modulation network provided by the embodiment of the invention through the T equivalent model, and multiple inductors are combined into a transformer with a smaller area, so that the area of a Doherty structure is reduced while the rollback efficiency of the power amplifier is improved, the connection loss is reduced, and the overall performance of the power amplifier is improved.

The invention relates to a log synchronization method and device, a computer readable storage medium and electronic equipment, and relates to the technical field of computers. The method comprises the following steps: obtaining a to-be-matched log list and a target log list corresponding to the to-be-matched log list, and determining current to-be-matched logs included in the to-be-matched log list; determining whether the current to-be-matched log is matched with the target log list or not according to the current to-be-matched log and the target log list; when it is determined that the current to-be-matched logs are not matched with the target log list, according to the target log list, determining to-be-matched logs matched with the target log list in the to-be-matched log list; and based on the to-be-matched log, synchronizing the to-be-matched log to the target log list. The log backspacing frequency is reduced, and the log synchronization efficiency is improved.

The embodiment of the invention is suitable for the technical field of research and development management, and provides a page static resource using method and device, terminal equipment and a storage medium, the method is applied to the terminal equipment, and the terminal equipment comprises a cache memory; the method comprises the following steps: acquiring page static resources of each version sent by a server; when each page static resource is stored in the cache memory, generating a page route of each page static resource; after the data connection between the terminal equipment and the server is disconnected, if a data request is received, obtaining a target page static resource of the latest version from the cache memory according to the page route and the data request; and if the running of the static resource of the target page has an error, rolling back the static resource of the target page of the latest version to the previous version from the cache memory. By adopting the method, the terminal equipment can improve the rollback efficiency of the page static resource of the previous version.

The invention discloses a dual-mode matching irregular structure Doherty power amplifier based on reflection coefficient circle optimization. The dual-mode matching irregular structure Doherty power amplifier comprises a coupler, a carrier amplification circuit, a peak amplification circuit, an irregular structure carrier dual-mode output matching network, an irregular structure peak dual-mode output matching network and a combining load. The uplink signal output end of the coupler is sequentially connected with a carrier phase compensation line, a carrier input matching network, a carrier transistor and an irregular structure carrier dual-mode output matching network in the carrier amplifying circuit; and the lower signal output end of the coupler is sequentially connected with a peak phase compensation line, a peak input matching network, a peak transistor and an irregular structure peak dual-mode output matching network in the peak amplification circuit. And the output ends of the carrier amplification circuit and the peak amplification circuit are directly connected with the combining load. A Doherty power amplifier is designed by combining a dual-mode matching network optimization method based on a reflection coefficient circle with an irregular structure, and broadband and high-efficiency working characteristics are realized.

The invention discloses a BWP fallback method and device, equipment and a storage medium, and relates to the field of mobile communication. The method comprises the following steps: a terminal responds to timeout of a first timer of a currently monitored BWP, and a first type terminal determines a default BWP; wherein the default BWP is a target BWP switched to by the terminal from a currently monitored BWP, and the default BWP is determined according to at least one of the following modes: a preset rule, indication information of network equipment and a communication protocol, the problem that the terminal cannot determine the default BWP based on the downlink BWP to complete rollback is solved, the accuracy of determining the default BWP is improved, and the user experience is improved. And the terminal rollback efficiency is improved.

The invention discloses a millimeter wave transmitter and a time modulation power amplification circuit thereof. The time modulation power amplification circuit comprises cascaded amplification units. Each amplification unit comprises a lower transistor whose gate is coupled with a modulation signal and whose first pole is connected with a common terminal; the first electrode of the upper transistor is connected with the second electrode of the lower transistor, and the second electrode is connected with the power supply end through a load; the input end of the power matching network is connected with the second electrode of the upper transistor, and the output end of the power matching network is used for outputting amplified signals; for the first-stage amplification unit, the grid electrode of the upper transistor is coupled with a central signal, and the grid electrode of the upper transistor of each subsequent amplification unit is coupled with the output end of the power matching network of the preceding-stage amplification unit. The cascaded amplification units have very high circuit rollback efficiency; the time modulation power amplification circuit can restrain higher harmonics, can restrain third and fifth harmonics when forming a four-channel or eight-channel drive circuit, and improves the space beam efficiency.

The present invention relates to the field of communications, and in particular, to a network data rollback method and a rollback device, where the method includes: when data rollback needs to be performed, comparing a data snapshot at a second time stamp with a data snapshot at a first time stamp to find different feature data; and selecting, from the different feature data, feature data that needs to be rolled back, and performing data rollback according to a preset rollback rule, so as to roll back a part or all of network data at the second time stamp to a network data state at the first time stamp. In the present invention, a part or all of different data of data snapshots at two time stamps may be rolled back in a unit of feature data.

The invention discloses an exception handling method and an exception handling device for gray release, a gray release platform can receive a service exception instruction sent by a terminal, and determines the number of current exception servers and the number of current normal servers according to the service exception instruction, the abnormal server is a server related to the current gray release. Afterwards, the service platform can obtain the number of historical requests, input the number of historical requests into a pre-trained prediction model to predict the number of servers required currently, and according to the number of servers, the number of abnormal servers and the number of normal servers, determine at least a part of abnormal servers needing to suspend service execution. Finally, the service execution of the determined at least part of the abnormal servers is paused, and the at least part of the abnormal servers are rolled back, thereby improving the rollback efficiency.