Abstract: Examples described herein include systems and methods for retaining information about bad memory pages across an operating system reboot. An example method includes detecting, by a first instance of an operating system, an error in a memory page of a non-transitory storage medium of a computing device executing the operating system. The operating system can tag the memory page as a bad memory page, indicating that the memory page should not be used by the operating system. The operating system can also store tag information indicating memory pages of the storage medium that are tagged as bad memory pages. The example method can also include receiving an instruction to reboot the operating system, booting a second instance of the operating system, and providing the tag information to the second instance of the operating system. The operating system can use the tag information to avoid using the bad memory pages.

Abstract: A includes a memory device and a processing device, operatively coupled to the memory device. The processing device is to: initialize a block family associated with the memory device; initialize a timer at initialization of the block family; and aggregate temperature values received from sensor(s) of the memory device over time to generate an aggregate temperature. Responsive to programming a page residing on the memory device, the processing device associates the page with the block family. The processing device closes the block family in response to the aggregate temperature being greater than a first temperature value and the timer reaching a first time value. The processing device closes the block family in response to the aggregate temperature being less than or equal to the first temperature value and the timer reaching a second time value that is greater than the first time value.

Abstract: An embodiment provides a method for transferring information utilizing a serial communication command structure over an unreliable or a non-continuous communication channel, including: establishing a serial command structure, wherein the establishing comprises defining a package structure having a predefined format, wherein the serial command structure comprises bounded data; and transmitting, over the unreliable or the non-continuous communication channel, data from a sending entity to a receiving entity utilizing the serial command structure and in the predefined format. Other aspects are described and claimed.

Abstract: Disclosed is a hydrocyclone monitoring system. The hydrocyclone monitoring system comprises a hydrocyclone comprising a separation chamber having an inlet for feeding an input mixture into the separation chamber and first and second outlets for ejecting flows of 5 respective first and second components of the mixture from the separation chamber. The hydrocyclone monitoring system further comprises a conduit and a sensor assembly. The conduit is connected to the first outlet and defines a channel for conducting the flow of the first component ejected from the separation chamber. The sensor assembly is configured to detect characteristics of the flow of the first component in the channel. The hydrocyclone 10 monitoring system further comprises a processing system configured to receive from the sensor assembly measurement data indicative of the characteristics of the flow of the first component, and to determine a mode of operation of the hydrocyclone based on the measurement data.

Abstract: A network device includes a network interface, a host interface and processing circuitry. The network interface is configured to connect to a communication network. The host interface is configured to connect to a host including a processor. The processing circuitry is configured to receive from the processor, via the host interface, a notification specifying an operation for execution by the network device, the operation including (i) multiple tasks that are executable by the network device, and (ii) execution dependencies among the tasks in response to the notification, the processing circuitry is configured to determine a schedule for executing the tasks, the schedule complying with the execution dependencies, and to execute the operation by executing the tasks of the operation is accordance with the schedule.

Abstract: Techniques a provided for performing multi-system operations in which changes are asynchronously committed in multiple systems. Metadata about the multi-system operation is injected into the commit logs of one system involved in a multi-system operation. An event stream is generated based on the commit logs of the one system, and is used to drive the operations that one or more other systems need to perform as part of the multi-system operation. A reconciliation system reads the logs of all systems involved in the multi-system operation and determines whether the multi-system operation completed successfully. Techniques are also provided for using machine learning to generate models of normal execution of different types of operations, detect anomalies, pre-emptively send expectation messages, and automatically suggest and/or apply fixes.

Abstract: A distributed processing method based on a consistency protocol is provided. The method includes: transmitting a decree prepare request including a first decree number, the decree prepare request requesting other nodes to promise to no longer accept a fast write operation initiated by a leader node whose leader number is less than the first decree number, the first decree number representing a leader number of a current node, and the leader number representing a number of a decree at which the current node that becomes a leader node is located; and in response to receiving decree promises from at least a preset quantity of nodes among the other nodes, enabling the fast write operation from a subsequent decree number of a second decree number determined based on the decree promises, each of the decree promises including the first decree number.

Abstract: A seatbelt system for automatically detecting damage to a seatbelt webbing includes a strip of seatbelt webbing, a sensor, and processing circuitry. The strip of seatbelt webbing includes an embedded conductive material that extends through the strip of seatbelt webbing. The sensor is connected to the seatbelt webbing and is configured to measure electrical flow through the embedded conductive material. The processing circuitry is configured to receive the measurement of electrical flow from the sensor and to generate an alert based on the measurement.

Abstract: A power electronic circuit fault diagnosis method based on Extremely randomized trees (ET) and Stack Sparse auto-encoder (SSAE) algorithm includes the following. First, collect the fault signal and extract fault features. Then, reduce the dimensionality of fault features by calculating the importance value of all features using ET algorithm. A proportion of the features to be eliminated is determined, and a new feature set is obtained according the value of importance. Further extraction of fault features is carried by using SSAE algorithm, and hidden layer features of the last sparse auto-encoder are obtained as fault features after dimensionality reduction. Finally, the fault samples in a training set and a test set are input to the classifier for training to obtain a trained classifier. And mode identification, wherein the fault of the power electronic circuit is identified and located by the training classifier.

Abstract: State information indicating states of a plurality of imaging apparatuses 100-x used for generating a virtual viewpoint image is acquired. At least one image type is determined from a plurality of image types indicating display formats of displaying the states of the plurality of imaging apparatuses 100-x based on the state information. Based on the determined image type, the states of the plurality of imaging apparatuses 100-x are displayed.

Abstract: Methods and apparatus relating to enhancing diagnostic capabilities of computing systems by combining variable patrolling Application Program Interface (API) and comparison mechanism of variables are described. In one embodiment, a first processor core executes a first instance of a workload to generate a first set of safety variables. A second processor core executes a second instance of the workload to generate a second set of safety variables. A third processor core generates a signal in response to comparison of the first set of safety variables and the second set of safety variables. Other embodiments are also disclosed and claimed.

Abstract: Improved mechanisms and techniques for recording and aggregating trace information from multiple computing modules of a storage system may be provided. On a storage system having multiple computing modules, where each computing module has multiple processing cores, processing cores may record trace information for I/O operations in dedicated local memory—i.e., memory in the same computing module as the processing core that is dedicated to the computing module. One of the processing cores may be configured to aggregate trace information from across multiple computing modules into its dedicated local memory by accessing trace information from the dedicated local memories of the other computing modules in addition to its own. The aggregated information in one dedicated local memory then may be analyzed for functionality and/or performance and additional action taken based on the analysis.

Abstract: A variable power bus (VPB) cable, such as a USB Type-C cable, is validated for actual current capacity with respect to a specified power rating for the cable. The power cable validation is performed when the cable is connected to a power storage adapter and a portable information handling system. The validation includes, prior to negotiating a power delivery contract for electrical power to be supplied to the information handling system from the VPB port via the VPB cable, applying a first voltage to the VPB cable to identify a first indication of a current capacity of the VPB cable; and when the first indication confirms that the current capacity of the VPB cable corresponds to a specified power rating for the VPB cable, enabling the power delivery contract to be negotiated according to the specified power rating, otherwise blocking the power delivery contract using the VPB cable.

Abstract: A plant for manufacturing products, in particular for applying a coating on parts, includes apparatuses having radiofrequency transmitters, with a pre-set periodicity, of a radio signal containing a unique identifier of each apparatus; a portable device carried by an operator and receiving the radio signal; a program loaded on and performed by the portable device to extract a unique identifier of the apparatus and detect the operator-apparatus distance through an analysis of the trend of the radio signal, the radio-transmitters transmitting periodically their unique identifier and having a remote configuring/setting channel through radio-frequency communication with an external control device to exchange data packets; and a connecting procedure between the portable device and the radio-frequency transmitter to receive information on the operating status of the apparatuses, the signals being transmitted to a remote server or a cloud to monitor the operating conditions of the apparatuses.

Abstract: Provided herein are systems and methods for authenticating controlled area network (CAN) transmissions using physical layer characteristics. In one or more examples, a device that is configured to authenticate CAN transmissions can be connected to an existing CAN. The device can be configured to undergo a training phase in which average transition waveforms of one or more electronic control units (ECUs) are created. When the device is in operation, each CAN transmission received by the device can be compared against the average transition waveforms to determine the ECU that is most likely to have sent the transmission. In one or more examples, the identified most likely ECU can be compared against the ECU identified by an arbitration ID of the transmission. If there is a mismatch then in one or more examples the device can alert to the possibility of a suspicious ECU transmission.

Abstract: Methods, systems, and computer-readable media for distributed canary testing with test artifact caching are disclosed. Using one or more storage components, a test client stores one or more software artifacts for testing of a software product. The client initiates a first test of the software product using the software artifact(s) stored in the storage component(s). In the first test, the client sends a first set of requests to the software product at a first point in time. The client initiates a second test of the software product using the software artifact(s) stored in the storage component(s). In the second test, the client sends a second set of requests to the software product at a second point in time. The software artifact(s) are maintained in the storage component(s) between the first point in time and the second point in time.

Abstract: Systems, methods, and devices for retrying a query. A method includes receiving a query directed to database data and assigning execution of the query to one or more execution nodes of an execution platform, the one or more execution nodes configured to execute the query on a first version of a database platform. The method includes determining that execution of the query was unsuccessful. The method includes assigning a first retry execution of the query to the one or more execution nodes of the execution platform and determining whether a regression or an intermittent fault caused the execution of the query to be unsuccessful based at least in part on whether the first retry execution of the query was successful or unsuccessful.

Abstract: Voltage monitoring circuit having an analog reset signal generator to generate a reset signal and coupled to a voltage to be monitored; first register to store a first state bit and coupled to the voltage to be monitored; second register connected in parallel to the first register, redundant to the first register, to store a second state bit, and coupled to the voltage to be monitored; logic coupled to the first and second registers and to determine a state control signal from the first and second state bits, and a second reset signal; and OR logic to receive the following signals on the input side and process them with one another according to an OR operation: a first reset signal generated by the analog reset signal generator and the second reset signal, so that a reset control signal is generated and fed to reset inputs of the registers.

Abstract: An industrial asset may have a plurality of monitoring nodes, each monitoring node generating a series of monitoring node values over time representing current operation of the industrial asset. An abnormality detection computer may determine that an abnormal monitoring node is currently being attacked or experiencing a fault. An autonomous, resilient estimator may continuously execute an adaptive learning process to create or update virtual sensor models for that monitoring node. Responsive to an indication that a monitoring node is currently being attacked or experiencing a fault, a level of neutralization may be automatically determined. The autonomous, resilient estimator may then be dynamically reconfigured to estimate a series of virtual node values based on information from normal monitoring nodes, appropriate virtual sensor models, and the determined level of neutralization.

Abstract: A computer-implemented method, a computer program product, and a computer system for diagnosing anomalies detected by a black-box machine learning model. A computer determines a local variance of a test sample in a test dataset, where the local variance represents uncertainty of a prediction by the black-box machine learning model. The computer initializes optimal compensations for the test sample, where the optimal compensations are optimal perturbations to test sample values of respective components of a multivariate input variable. The computer determines local gradients for the test sample. Based on the local variance and the local gradients, the computer updates the optimal compensations until convergences of the optimal compensations are reached. Using the optimal compensations, the computer diagnoses the anomalies detected by the black-box machine learning model.

Abstract: Described are systems and methods for jointly optimizing Wide Area Network (WAN) and Local Area Network (LAN) network communications. In one embodiment, a management device communicatively interfaced with a WAN and a LAN includes a collection module to collect LAN information from the LAN and WAN information from the WAN; an analysis module to jointly analyze the collected WAN information and the collected LAN information to identify an operational condition; and an implementation nodule to initiate a management event responsive to the operational condition being identified. In one embodiment, the management event includes generating and transmitting a diagnostics report responsive to a fault being identified. The management device may further generate and execute instructions to remedy the diagnosed fault.

Abstract: Exemplary methods, apparatuses, and systems include receiving read operations. The read operations are divided into a current set of a sequence of read operations and one or more other sets of sequences of read operations. An aggressor read operation is selected from the current set. An identifier of a memory location read by the aggressor read operation is stored and, in response to determining a data integrity scan of a victim location of the aggressor read operation will collide with a host operation, the data integrity scan is delayed. In response to a trigger condition being satisfied, the delayed data integrity scan of the victim location of the aggressor read operation is performed.

Abstract: A method and apparatus for providing trouble isolation are disclosed. For example, the method monitors a plurality of sessions for a user group for detecting an abnormal cause code associated with the user group, determines a root cause for the abnormal cause code when a deviation is determined to have occurred for the cause code of the user group, wherein the root cause identifies either an issue associated with the communications network or an issue associated with user endpoint devices of the user group, and generates a ticket indicating the root cause.

Abstract: An error management system can include register sets associated with an error reaction. The test errors are injected in functional signals based on activation of multiple bits in one of the register sets. When the functional signals with the injected test errors are received by the error management system, multiple bits in the other register set are activated. The error management system generates an activated indication signal when a number of the activated bits in one register set matches a number of activated bits in the other register set. When the indication signal is activated, the error management system generates a reaction signal indicative of the error reaction. Thus, the error management system generates a single reaction signal in response to the injected test errors requiring the same reaction.

Abstract: A printer selects time-series data satisfying a condition indicating that the printer is active as input data from among time-series data obtained from a sensor. A cloud server generates a learning model that has learned to output a prediction value corresponding to a second time as output data in a case where input data until a first time is input based on the input data until the first time and teacher data that is sensor data at a second time after the first time.

Abstract: A network security attack misdirection line-replaceable unit for installation on an aircraft and connected to an onboard data network include a local network interface to the onboard data network. A local simulation server accepts incoming access requests accompanied by an access credential from an attacker client device, and is responsive thereto with either a simulated access denial response or a simulated access grant response. Delays between receipt of the access request and to the access denial response is progressively increased with each presentation of the access credential.

Abstract: To provide a gateway device capable of continuing communication in the event of an abnormality without a redundant configuration as a system. A gateway device 100 includes a plurality of transceivers 110, 112, and 114 connected to a plurality of communication buses 1, 2, and 3 in a one-to-one manner, and a switch element 50 that connects the two communication buses 1 and 2 having different priorities among the plurality of communication buses.

Abstract: An information providing method is provided, the method including acquiring a request information set by an electronic apparatus, transmitting a request information sub-set corresponding to at least a portion of the request information set to a reference server, transmitting the request information sub-set to a development server, receiving a first response set including a first response to the request information sub-set from the reference server, receiving a second response set including a second response to the request information sub-set from the development server, and providing comparison information of the first response set and the second response set.

Abstract: A trace data acquisition system, comprising: a plurality of industrial machines configured to sequentially process an object; and circuitry configured to: determine whether one of the plurality of industrial machines has satisfied a specific condition; and request another industrial machine to acquire trace data when the one of the plurality of industrial machines is determined to have satisfied the specific condition.

Abstract: There is disclosed a computing/data processing device comprising: a plurality of computing units, each computing unit comprising a computing resource; the computing device comprising at least three computing units, each computing unit comprising a/the same computing resource; each computing unit further comprising a computing unit access manager, each unit access manager being adapted to control access to the computing resource of the respective computing unit in response to at least one request; wherein, the computing unit access manager only allows a response to the at least one request if a majority of the computing units provide a same response to the at least one request; and wherein, the computing device comprising a network-on-a-chip, is provided on a chip and/or comprises an integrated chip (IC) or microprocessor. The IC beneficially comprises a Field-Programmable Gate Array (FPGA) device.

Abstract: Systems and methods for shadow testing are provided. A new service may be brought online that corresponds to an existing service. The new service may be designated for shadow testing. A call may be received for the existing service from a calling device. The received call may be provided to the existing service, while an asynchronous call corresponding to the received call may be provided to the new service. A result may be received from the existing service in response to the provided call, and a result may be received from the new service in response to the asynchronous call. The result received from the existing service may be used in responding to the received call. Data regarding the result received from the new service may be logged, but the result received from the new service may be excluded from use in responding to the received call. One or more metrics evaluating performance by the new service may be generated.

Abstract: A method for identifying outlier devices during testing, includes: establishing binning limits for a device being tested based on one or more rules generated from external test results data of tests involving similar devices; receiving test results data in real time for the device being tested while the device is on a device tester; applying the one or more rules to the test results data for the device in real time; determining in real time, based on results of applying the one or more rules to the test results data, whether the device is an outlier with respect to the binning limits; and in response to determining that the device is an outlier, binning the outlier device separately from tested devices having test results data falling within the binning limits.

Abstract: A system and method for mirroring traffic data is described. A traffic proxy samples traffic data between a client device and a first web server. The traffic data comprises requests from the client device and corresponding responses from the first web server. The sampled traffic data is encoded and relayed to a second web server. The second web server comprises an updated version of a web service that is operating at the first web server. Responses from the first web server are compared with responses from the second web server based on the requests in the encoded sampled traffic data. The differences between the responses from the first web server and the second web server is stored.

Abstract: A display device includes a through portion passing through a display layer. The display includes a plurality of scan lines above the substrate and extending in a first direction, a plurality of data lines extending in a second direction, and a plurality of pixels connected to the scan lines and data lines. The data lines include a first data line and a second data line disconnected by the through portion, and a third data line spaced apart from the through portion along the first direction. The first data line is electrically connected with the third data line.

Abstract: A testing system includes a slot configured to receive a device-under-test (DUT), and a core testing processor configured to communicate with a user interface and with the slot, wherein the core testing processor is associated with communication that is independent of any other communications transmitted within the system, and wherein the core testing processor executes a set of tests associated with the DUT.

Abstract: Using a natural language processing model, a historical defect report comprising a defect description in narrative text form is parsed. Within a code repository, source code associated with the historical defect report is identified. From the historical defect report and the source code, a logging rule comprising a defect type, logging placement information corresponding to the defect type, and logging format information corresponding to the defect type is generated. By parsing a new defect report using the natural language processing model, the new defect report reporting a defect in new source code, it is determined that the logging rule applies to the new defect report. Logging source code generating logging output when executed is placed within the new source code according to the logging rule. Execution of the new source code including the logging source code is caused, generating the logging output.

Abstract: A communication apparatus may comprise a first wireless interface for executing a wireless communication in accordance with a first communication scheme and a second wireless interface for executing a wireless communication in accordance with a second communication scheme. The communication apparatus may receive first access point information from an external apparatus via the first interface, execute a first establishing process for establishing a first wireless connection via the second interface with a first access point using the first access point information, communicate with a particular apparatus via the second interface while relaying the first access point in a case where the establishment of the first wireless connection succeeds, and send failure information to the external apparatus via the first interface in a case where the establishment of the first wireless connection fails.

Abstract: The disclosure generally provides methods, systems and apparatus for functional safety systems. In one implementation, a shim layer of software codes that maps into register information collects diagnostic error data. The data is then channeled through one or more virtual tunnels into a Host-based STL. The virtual tunnels are unidirectional to only provide Read access and thereby prevent unauthorized Write access. In another embodiment, the information is provided to external subscribers. The external subscribers may gain access to different levels of data according to the subscription level.

Abstract: A Functional Safety Timer (FST) and method of for monitoring functional safety in Integrated Circuits (ICs) is disclosed. The FST includes hardware based counter for counting programmed number of cycles associated with an event of peripheral device. The FST includes first logic circuit and second logic circuit. The first logic circuit receives first trigger of peripheral device. In response to first trigger, the counter is initiated by first logic circuit. The second logic circuit receives second trigger of peripheral device. In response to second trigger, the counter being initiated is terminated by the second logic circuit. Further, the FST includes a hardware based comparator for comparing the number of cycles counted by the hardware based counter with a threshold time associated with the event and a plurality of programmable registers for determining one or more faults associated with the event based on result of the comparison and sequence of events.

Abstract: A method of making a secure integrated-circuit system comprises providing a first integrated circuit in a first die having a first die size and providing a second integrated circuit in a second die. The second die size is smaller than the first die size. The second die is transfer printed onto the first die and connected to the first integrated circuit, forming a compound die. The compound die is packaged. The second integrated circuit is operable to monitor the operation of the first integrated circuit and provides a monitor signal responsive to the operation of the first integrated circuit. The first integrated circuit can be constructed in an insecure facility and the second integrated circuit can be constructed in a secure facility.

Abstract: Systems and methods are provided for implementing an automated parallel deployment solution. Embodiments of the invention described herein prevent defects from being introduced in a production environment, or those that could be introduced in a production environment, by parallel log monitoring of existing and new state systems. One or more systems may be created in parallel to the production system to detect and fix defects. In embodiments of the invention, as existing defects are captured and resolved by the automatic defect resolution system and method, these defects will not impact production any further. Thus, the automatic defect resolution system drives out all production defects over a window of time, requiring less and less maintenance over time. Once a given defect is fixed, the corresponding change is applied to the production environment to avoid future similar defects.

Abstract: Automated computational methods and systems to classify and troubleshoot problems in information technology (“IT”) systems or services provided by a distributed computing system are described. Each IT system of the distribution computing system or IT service provided by the distributed computing system has an associated key performance indicator (“KPI”) used to monitor performance of the IT system or service. When real-time KPI data violates a KPI threshold, a real-time event-type distribution is computed from event messages generated by event sources associated with the IT system or service following the threshold violation. The real-time event-type distribution is compared with historical event-type distributions recorded for the KPI data in order to identify the problem and execute remedial action to resolve the problem.

Abstract: For each software test of a plurality of available software tests, one or more code portions corresponding weight factor(s) of a first version of target codebase covered by the corresponding software test are identified. Information retrieval matching is utilized to calculate a corresponding match score for each software test of the plurality of available software tests based on comparisons of the identified one or more identifiers of one or more changed code portions of a second version of the target codebase with the one or more code portion identifiers and the one or more corresponding weight factors associated in the data structure with the corresponding software test. Based on the calculated match scores, one or more software tests of the plurality of available software tests are selected for execution to test the second version of the target codebase.

Abstract: Generation of one or more models is caused based on selecting training data comprising a plurality of features including a prevalence feature for each vulnerability of a first plurality of vulnerabilities. The one or more models enable predicting whether an exploit will be developed for a vulnerability and/or whether the exploit will be used in an attack. The one or more models are applied to input data comprising the prevalence feature for each vulnerability of a second plurality of vulnerabilities. Based on the application of the one or more models to the input data, output data is received. The output data indicates a prediction of whether an exploit will be developed for each vulnerability of the second plurality. Additionally or alternatively, the output data indicates, for each vulnerability of the second plurality, a prediction of whether an exploit that has yet to be developed will be used in an attack.

Abstract: Improved technical functionality is provided to dynamically select and seamlessly play advertisements immediately before playing of a recorded program upon selection of the recorded program for playing, or upon other detected events and conditions associated with the set-top-box (STB) or user. In some embodiments, this is performed by using metadata which may be delivered to and stored on a digital video recorder (DVR) prior to recording the program, providing a technical solution to enable opportunities for additional advertisement impressions. Playing of the advertisement may also or instead occur upon the recorded program finishing playing. Thus, the technical solution provides the additional opportunity for the content creator and/or the satellite television or cable service provider to sell advertising spots in addition to those already sold for breaks within the recorded program.

Abstract: A system is provided for training a device design network. The system includes an interface configured to input data of a device, a memory to store the device design network including an encoder, a decoder, and an adversarial block, and a processor. The processor is, in connection with the memory, configured to update the encoder and the decoder based on a first loss function to reduce the difference between the input data and output data of the decoder, wherein the encoder is constructed by at least one convolutional layer followed by at least one parallel fully connected layer to extract features of a layout of the device, and update the adversarial block to construct by maximizing a second loss function.

Abstract: The present disclosure provides a four-dimensional imaging method for structural damage based on a time-invariant characteristic signal. The method first uses a probability statistical modeling method to describe the uncertainty distribution of the amplitude of each sampling point in the signal in the healthy state and the damaged state of the structure, respectively. Then the degree of difference between the two distributions at each point is measured to suppress the influence of the time-varying factor, highlight the influence of damage, and construct a time-invariant characteristic signal. Finally, the time-invariant characteristic signal of the pitch-catch channel is fused by using the guided wave imaging method to further enhance the influence of damage. Based on this, four-dimensional imaging is performed to achieve reliable and accurate location of structural damage.

Abstract: Embodiments of the present invention provide a system for refreshing data within the testing environment by sanitizing production data. In particular, the system may process real-world data obtained in the production environment and automatically replace sensitive or confidential information with realistic substitute data, then provide the sanitized data to the systems within the low level testing environment. The system may account for differences in table schema amongst a plurality of disparate databases within the production environment and the low level environment, thereby allowing the system to provide sanitized data only to the extent that it is needed for testing purposes. Furthermore, the system selectively provides sanitized test data on an as-needed basis, removing the need to continuously generate testing data.

Abstract: A fault tolerance processing method includes: sending, by a server, a data read packet to an external controller, where the data read packet is used to request the external controller to read data in an indicated storage location, and a packet format of the data read packet complies with a packet format specified in the memory-semantic network protocol; receiving, by the server, indication information sent by the external controller, where the indication information is used to indicate a response status of the external controller to the data read packet; and determining, by the server, the response status of the external controller to the data read packet based on the indication information, and performing fault tolerance processing when the response status is an abnormal response.

Abstract: A maintenance management system includes: a failure information DB that stores at least a failure mode for each of diagnosis target assets; an automatic diagnosis definition DB that stores diagnostic criteria for diagnosing failure modes of the diagnosis target assets; an automatic diagnosis unit that detects or predicts occurrence of a failure mode of a diagnosis target asset, based on a measurement value representing a state of the diagnosis target asset measured by a sensor and the diagnostic criteria; a maintenance method DB that stores in advance a maintenance method corresponding to a failure mode; an automatic diagnosis result log storage unit that records at least a diagnosis result by the automatic diagnosis unit and information regarding an alarm issued; and a maintenance work log storage unit that records at least a maintenance work content performed on the diagnosis target asset and includes a task performance analysis unit.