47results about How to "Reduce unavailability" patented technology

A method for reducing data loss and unavailability by integrating multiple levels of a storage hierarchy is provided. The method includes receiving a read request. In addition, the method includes recognizing a data failure in response to the read request. The method further includes locating an alternate source of the data to be read in response to recognizing the data failure. The alternate source includes data cached at devices in the storage hierarchy, data in a backup system, and cumulative changes to the data since the last backup. Moreover, the method includes responding to the read request with data from the alternate source.

Priority adjustment of dynamic random access memory (DRAM) transactions prior to issuing a per-bank refresh for reducing DRAM unavailability is disclosed. In one aspect, DRAM is refreshed on a per-bank basis. If a queued memory transaction corresponds to a memory bank that will soon be refreshed, the transaction may be delayed if a refresh of the corresponding memory bank begins prior to execution of the transaction. To avoid delaying execution of the transaction while waiting for the corresponding memory bank to be refreshed, a priority of the memory transactions may be adjusted based on a memory bank refresh schedule. The priority of the transaction corresponding to the memory bank to be refreshed may be increased, and the priority of other memory transactions may be decreased, if such an adjustment would avoid or reduce delaying execution due to unavailability of the corresponding memory bank.

The invention relates to a computer implemented method for assistance for a predetermined asset characterised by asset parameters including at least its type or a sign adapted for characterising at least its type, and advantageously its location or a sign adapted for characterising its location, especially in a building, to an end-user having a mobile communication device with a scanning element or camera, said end-user mobile communication device being adapted to communicate with a computer system for assistance.

Embodiments of the present systems and methods may provide the capability to reduce service unavailability, client disruption, network traffic and processing load due to state synchronization. For example, a computer-implemented method for controlling operation of a plurality of server computer systems may comprise determining an order in which the plurality of server computer systems is to be restarted and restarting each of the plurality of server computer systems sequentially according to the determined order, wherein a leader of the server computer systems receives and handles write requests for the plurality of server computer systems, and wherein the leader server computer system is restarted last.

The invention relates to the technical field of network information, in particular to a website state reconnaissance method and device. The website state reconnaissance method includes the following steps that an access request is sent to an acquisition target webpage periodically according to a preset reconnaissance period, and response information returned by a server of the acquisition target webpage is received; the response information is processed; when the response information indicates that the acquisition target webpage is not accessible, first alarming information is sent, wherein the first alarming information is used for indicating that the acquisition target webpage is not accessible. According to the website state reconnaissance method, the accessable state of the acquisition target webpage is reconnoitered periodically, the alarming information is sent when the acquisition target webpage cannot be accessed, and the availability and large-scale acquisition management capacity of information acquisition programs are improved.

An attachment system for removably attaching an implement under a vehicle. The mounting system includes a vehicle frame. The vehicle frame has a pair of spaced apart frame portions. Each of a pair of hitch receiving points is connectable with a respective one of the frame portions. An implement includes support structure extending for a length. A pair of hitch pins is associated with the support structure. The hitch pins are spaced apart in a direction along the length of the support structure. Each hitch pin is for attachment to a respective one of the hitch receiving points. A structural member is associated with the support structure and has a portion adapted to attach to structure outboard of a frame portion. A lift mechanism is connectable with a portion of the vehicle frame. The lift mechanism is attachable with the structural member to move the hitch pins relative to the hitch receiving points.

The invention relates to a vehicle instrument upgrading method and system, and belongs to the technical field of vehicle instruments, and the method comprises the steps that an upper computer obtainsan interface upgrading material of a vehicle instrument, and recognizes a plurality of high-frequency repeated regions in the interface upgrading material; the upper computer calculates a feature BINcharacter string corresponding to each high-frequency repetition region, and sets an identification character corresponding to the feature BIN character string; the upper computer generates a BIN fileof the interface upgrading material, and replaces a feature BIN character string in the BIN file with an identification character; in the replaced BIN file, the upper computer modifies the charactercontent of multiple bytes with the same continuous content into the character content of a single byte and the number of the bytes; and the upper computer transmits the modified BIN file to a storagespace of the vehicle instrument, so that a control chip of the vehicle instrument performs instrument interface upgrading according to the BIN file. By adopting the method and the device, a vehicle instrument interface can be quickly upgraded, and particularly, the material upgrading of the liquid crystal instrument interface of an engineering machinery vehicle can be conveniently and quickly realized.

The invention discloses a wheel-track switching chassis which comprises a wheel-track power switching part, a wheel-track switching part and a front rocker part, and the wheel-track power switching part comprises an axle coupler, an oil pushing sliding block, a main axle, a main shaft gear, a front shaft gear, an ordinary gear train, a lead screw, a driving motor, a guide rail and a lead screw driver; the wheel-track switching part comprises a track, a convertible hub, a hub hydraulic rod, a floating strip, an axle coupler, a track wheel and a main axle; the front rocker part comprises a front rocker, a front crawler wheel, a front supporting rod and a front wheel, and the front rocker, the front crawler wheel, the front supporting rod and the front wheel form a mechanical arm capable of swinging up and down. Two different walking mechanisms are provided, the same power system is used, a hub motor and the like do not need to be used for solving the problem of incompatibility of the power system, and the chassis can be conveniently applied to a small exploration device.

The embodiment of the invention provides a configuration updating method, device and system. The method comprises the following steps: receiving a configuration updating request sent by a to-be-configured service server in a plurality of service servers; extracting a first license in a pre-established preset number of licenses with time stamp information corresponding to the latest version configuration information; if the current moment is later than or equal to the timestamp information of the first license, sending the latest version configuration information to the to-be-configured serviceserver; creating a new second license corresponding to the latest version configuration information, wherein the timestamp information of the second license is obtained by adding a preset time interval to the moment when the latest version configuration information is sent to the to-be-configured service server; and if the current moment is earlier than the timestamp information of the first license, creating a new third license corresponding to the latest version configuration information and stopping configuration updating, the timestamp information of the third license being the timestampinformation of the first license, and unavailability of service functions can be reduced.

The invention relates to the technical field of environment detection, in particular to an environment detection method and system, and aims to solve the problems that in the prior art, when the environment is detected, due to various interferences in the environment, such as weather change, animal intrusion and scene damage, detection data is likely to be abnormal, and a detection result is affected. According to the technical scheme, the environment detection method comprises the steps that environment detection data of all detection points are obtained, and the environment detection data comprise different types of parameters related to the environment; the collected environment detection data is screened to obtain dead pixel data in the environment detection data; after dead pixel data in the environment detection data are removed, environment analysis data are obtained and sent to an environment analysis center; and after the environment analysis data is received, corresponding analysis processing is carried out on the environment analysis data of different types, and the analysis processing result is obtained. The method has the effect of improving the environment detection result.

The invention provides a method and a device for upgrading firmware in a vehicle-mounted microcontroller, and the method comprises the steps: storing two firmware in a storage of the vehicle-mounted microcontroller, and enabling the two firmware to be stored in different storage regions of the storage. In the method comprises the steps that a server obtains a latest version firmware upgrading filepublished latest, and the latest version firmware upgrading file comprises a firmware upgrading package of firmware to be upgraded, a target storage area to which the firmware belongs and a version number of the firmware upgrading package; when the server determines that the target firmware needs to be upgraded according to the version number of the firmware upgrading package and the version number of the target firmware stored in the target storage area, the latest version of firmware upgrading file is sent to the vehicle-mounted microcontroller, and the vehicle-mounted microcontroller upgrades the target firmware based on the firmware upgrading package in the latest version of firmware upgrading file. According to the scheme, the situation that the vehicle-mounted microcontroller is unavailable due to firmware upgrading failure in the vehicle-mounted microcontroller, and then the vehicle-mounted control system is unavailable can be reduced.

The invention relates to an online power supply system for wireless base station internal equipment, used for power supply condition monitoring and auxiliary power supply for a part of base station devices in a wireless base station, the part of the base station devices being supplied by commercial power. The system comprises a power supply state monitoring module and an auxiliary power supply module. The auxiliary power supply module is connected between an input port of the commercial power and a base station device. The power supply state monitoring module is connected with the input port of the commercial power and the auxiliary power supply module. When the commercial power is normally input, the commercial power supplies power for the base station device through the auxiliary power supply module or directly supplies power for the base station device, and meanwhile the commercial power charges the auxiliary power supply module. When the commercial power input is interrupted, the power supply state monitoring module controls the auxiliary power supply module to supply power for the base station device in an auxiliary manner. Compared with the prior art, the system can improve power supply reliability and reduce maintenance cost.