47results about How to "Troubleshoot recovery issues" patented technology

The invention discloses a method, a device and a system for restoring data. The method comprises the following steps of: acquiring all user operation requests, and storing the user operation requests into a restoring log in the form of operation logs; extracting reading operation records in the restoring log and analyzing the reading operation records so as to obtain operation sentences for updating a target disaster tolerant node database; receiving and combining the operation sentences belonging to the same work, gathering by a unit of the work, acquiring submittable work packets and transmitting the submittable work packets; and receiving the work packets sequentially and loading the work packets to the target disaster tolerant node database so as to restore the data. By the method, the problems that the consistency and the completeness of data recovery among disaster tolerant nodes of a heterogeneous database are poor are solved, the burdening on the network due to log transmission is relieved, and ineffective inquiring operation is avoided; therefore, the work packet loading efficiency is higher, and the data restoring speed of the target disaster tolerant node database is increased.

The invention discloses a distributed parallel processing database system and a data processing method thereof. Reliable data support is provided for data recovery by formulating a data fragment distribution rule, a redundant backup rule and a redo log mechanism. And according to the data operation type, log recovery or inter-node consistency recovery is redone to perform data automatic recovery.Distributed deployment is supported, automatic data recovery is achieved, and a stable storage computing service is provided.

The invention discloses a virtual network function reliability deployment method based on backup revenue and remapping. The method comprises the following steps: firstly, introducing a dual-sharing backup mechanism, wherein the reliability of the service function chain is effectively improved, meanwhile, resource occupation of backup is reduced as much as possible, the resource utilization rate ofthe system is improved; and then providing a reasonable and efficient virtual network function remapping method for the virtual network function which is not subjected to reliability backup in the service function chain. The method provided by the invention is used for solving the problem that the reliability of the service function chain is reduced due to the fact that the virtual network function in the service function chain is subjected to backup recovery after a fault occurs and the reliability of the virtual network function is changed after remapping for the first time.

The invention relates to a strength related diffraction imaging device and the image recovery method thereof, mainly comprising: obtaining object Fourier transform strength information and iterative algorithm of recovering the object transmittance function according to the strength information. And the imaging device comprises a thermal light source, a beam splitter is arranged in the advancing direction of the beam emitted by the thermal light source, in the direction of transmitted beam of the beam splitter are a to-be-detected object and an object light path plane detector, in the direction of reflected beam of the beam splitter is a reference light path, a reference light path plane detector is arranged in the light path, the output ends of the two plane detectors are simultaneously connected with a computer executing data collection and processing, the thermal light source and the two plane detectors are simultaneously triggered and controlled synchronously by a synchronous signal generator. And the invention can implement diffraction imaging of incoherent sources, and can obtain the Fourier transform strength information of the object transmittance function in the Fraunhofer diffraction region on condition of no lens and recovers the amplitude and phase of the object.

The invention relates to a method of achieving multi-management server supporting basing on SNMP protocol in CPE l remoter management, when DSLAM receives CPE management information from CPE-MM, DSLAM generates a new unique request ID to display the initial request ID and records the new generated request ID and the UDP source port of the managing information, the IP source address and the mapping relation of the initial request ID, then the DSLAM sends the SNMP data package to the corresponding CPE; when the DSLAM receives the responding information of the CPE, the DSLAM checks the initial request ID by the request ID of the information and sends the captured UDP/IP information to the CPE-MM; the DSLAM studies, updates and holds the relative dynamic re-direction information label.

The invention discloses a protection method of a multi-stage optical distribution PON. The multi-stage optical distribution PON comprises an optical line terminal, a multi-stage optical distribution network and an optical network unit which are connected in sequence. Spare components are installed on at least one component of the multi-stage optical distribution PON by using a 1+1 model. When the at least one component breaks down, business is switched to the spare components to be transmitted. The invention further discloses a multi-stage optical distribution PON using the protection method of the multi-stage optical distribution PON. According to the protection method of the multi-stage optical distribution PON and the multi-stage optical distribution PON, recovery problem of components in the multi-stage optical distribution PON after invalidation is solved effectively, and the system reliability is improved.

The invention discloses a method of recovering a broken route. The implementation process of the method is as follows: based on a network constituted by a source routing node, a destination routing node, and a number of intermediate routing nodes, when next routing node in an information transmission link is broken, an appropriate node is chosen from the intermediate routing nodes as a backup node to take the place of the previous broken node, and thus, the disconnected routing node is replaced by a new routing node. Compared with the prior art, the method of recovering a broken route has the advantages that a traditional backup routing mechanism is modified to a backup node mechanism, providing better flexibility and successfully solving the broken route recovery problem. Moreover, compared with maintenance of the backup routing mechanism, the method is simpler and better in practicality.

The invention discloses a coal mine tunnel inspection robot system integrating monocular vision and IMU and a navigation method, and belongs to the technical field of machine vision and robot navigation. The system comprises a monocular camera, an inspection robot, an airborne inertial measurement unit, an airborne processor and an illuminating lamp, the inspection robot carrier is used for carrying equipment such as the airborne processor and the illuminating lamp to form a hardware part of the navigation system; the monocular camera is used for shooting a high-definition picture of an underground coal mine roadway to form a data acquisition part of the system; the airborne inertial measurement unit is fused with the monocular camera, and scale information is obtained after alignment; andthe illuminating lamp is used for illuminating the interior of a roadway, so that the monocular camera imaging quality is improved; and the airborne processor is used for image processing, yaw anglecalculation of the inspection robot and robot attitude calculation. The coal mine tunnel inspection robot system integrating monocular vision and IMU and the navigation method have the advantages thata navigation scheme integrating vision and inertial sensors is adopted, higher precision is achieved, the structural characteristics of narrow and long spaces such as roadways are combined, and the real-time performance of the inspection robot can be met through intersecting line detection.

The invention provides an image rain removal method and system. The method comprises the following steps: constructing an image rain removal model based on a recursive residual cavity space pyramid pool network; constructing a training sample set; training the image rain removal model by adopting the training sample set to obtain a rain-free image generation model; and inputting the rain graphs of different sizes into the rain-free image generation model to obtain corresponding rain-removed images. Meanwhile, the invention provides a corresponding terminal and a storage medium. According to the invention, based on the recursive residual cavity space pyramid pool network, the problem of image restoration in rainy days is effectively solved; by extracting and fusing multi-scale information in a rain map, the quality of a recovered rain-free image is higher, and a long-short-term memory network module is introduced to enhance the dependency between stages; a mixed loss function is introduced, so that the details of the recovered image are finer, and the edge is clearer; the structural similarity and the peak signal-to-noise ratio of the rain-removed reconstructed image can be effectively improved, and a better effect is obtained subjectively.

The invention discloses a method for recovering a signal with low sampling rate in a weighted score fourier transformation domain and relates to the field of communication signal acquisition. The method solves the problems of data acquisition and recovery of the signal which does not meet the condition of a Shannon sampling theorem. The method comprises the following steps: firstly, an analog signal of an input signal is subjected to time domain sampling through an A/D convertor; a sampling sequence is sent to a digital signal processor DSP; the digital signal processor DSP is combined with a weighting coefficient of a given weighted score fourier transformation order and the time domain sampling sequence to calculate a reconstructing sequence of the weighted score fourier transformation domain; secondly, according to a reconstructing formula of the weighted score fourier transformation domain, a signal value of any reconstructing point is calculated; and finally, the reconstructed signal value can be recovered to an original analog signal waveform through the A/D convertor. Under the condition of without increasing the realization complexity, the method solves the problem of recovering a class of signals which do not meet the condition of the prior Shannon sampling theorem, is favorable for reducing the data size processed by an information source and improves the utilization rate of a signal channel.

The invention discloses a cross-country portable exploration drilling machine convenient to carry. The cross-country portable exploration drilling machine comprises a box. A power source is arranged on the outer side of the box, and an output shaft of the power source rotatably penetrates through the box and extends into the box to be connected with a gear disc. A third gear is arranged on a second rotating shaft in a sleeving mode and engaged with a second gear arranged on a first rotating shaft in a sleeving mode. A connecting rod is arranged at the rear end of the second rotating shaft, andthe rear end of the connecting rod is connected with the front end of a drill rod. The rear end of the drill rod is connected with a drill bit. According to the cross-country portable exploration drilling machine, on the one hand, the structure is simple, parts and the weight of the cross-country portable exploration drilling machine are reduced, the cross-country portable exploration drilling machine can be transported to the to-be-designated place only by being carried by one person, the problems that large equipment needs to cut trees down to repair roads and make forest land approval andrestoration are effectively solved, and damage to the ecological environment is avoided; and on the other hand, the engineering auxiliary time is lowered, the exploration period is shortened, and thecross-country portable exploration drilling machine has the beneficial effects of being simple in structure, low in manufacturing cost, easy and convenient to operate, not prone to being damaged and the like.