43results about How to "Easy to develop and maintain" patented technology

The invention discloses an application data backup recovery method of an intelligent card, an electronic device and a storage medium, wherein, the intelligent card comprises a smart card chip and an MCU module. The method comprises: if an application data backup instruction is detected, the application data in the smart card chip is saved in the MCU module according to the application data backupinstruction; if the application data backup instruction is detected, the application data in the smart card chip is stored in the MCU module. If the application data recovery instruction is detected,the application data in the MCU module is read into the smart card chip according to the application data recovery instruction. The invention provides an application data backup and restoration methodof a smart card, ELECTRONIC EQUIPMENT AND STORAGE MEDIUM, when an application data backup instruction is detected, The application data in the smart card chip is backed up to the MCU module, and whenthe data needs to be recovered, the application data in the MCU module is read into the smart card chip according to the recovery data instruction, thereby avoiding the problem that the important data loss in the application caused by deleting the application in the smart card causes the loss to the user.

The invention relates to a service bus message processing method, a service bus system, electronic equipment and a medium. The method comprises the following steps of: under the condition that a service subscribes a message ID (Identity), adding the service registered to a service bus into a message linked list corresponding to the message ID; under the condition that the service publishes the message, finding a corresponding message linked list according to the message ID of the message, taking the service subscribing to the message ID out from the message linked list, transmitting the message to the service; and under the condition that the service publishes the message, searching an unused memory block corresponding to the size of the message in a memory pool, and storing the message. The method is realized by adopting a message queue and memory pool management scheme, message transmission between services is realized with very low expenditure, and the method is simple to cut, convenient to maintain and convenient to transplant.

The invention discloses small satellite attitude control ground simulating device and method. The small satellite attitude control ground simulating device mainly comprises a simulation support module and a satellite tested module, wherein the simulation support module comprises a simulation computer, an embedded processor and a field programmable gate array; the satellite tested module comprisesan attitude control processor, measuring parts and executing parts; the simulation computer, the embedded processor and the field programmable gate array are sequentially connected; and the attitude control processor, all measuring parts and all executing parts are respectively connected with the field programmable gate array. The invention is suitable for the simulation requirements of satellites in various models, simultaneously meets various ways of semi-physical simulation requirement, has simpler development and maintenance of simulation computer software, more flexible and convenient operation of the simulation process and the analysis of a simulation result, simple realization and low cost and greatly shortens the development time and development cost of the satellite attitude control ground simulating device.

The invention relates to the field of embedded technology, and discloses a method for long connection communication of an embedded terminal, which is used for solving the problems of high expenditurefor establishing multiple threads and complex data synchronization. According to the method, only one independent communication thread is created; when the long connection between the embedded terminal and the server is abnormally disconnected, the communication thread calls an initialization interface of the embedded terminal to realize automatic reconnection; when the embedded terminal needs tosend a message, the communication thread calls a message sending interface of the embedded terminal to send the message; when the embedded terminal needs to receive the message, the communication thread calls a message receiving interface of the embedded terminal to receive the message; when the communication thread processes the messages, the messages needing to be processed are put into a message queue to be processed one by one; and in the one-by-one processing process, if the current message fails to be processed, caching the message, and waiting for cyclic next sending. The method is suitable for embedded terminal long connection communication.

Disclosed is a method for reporting fault generation and disappearance, comprising: A. recording a state of a link to be on, and at the same time, configuring a watchdog to directly report an alarm of fault generation if an operation administration and management (OAM) message is not received within a period T; B. determining whether the watchdog detects fault generation of the link; C. when the watchdog detects fault generation of the link, changing a current state of the link to be off, and at the same time, reconfiguring the watchdog, configuring a fault disappearance detection period of the watchdog to be n*T, and if the number of received packets of the link in a detection period is larger than a preset threshold, reporting an alarm of fault disappearance, n being an integer larger than 1; and D. determining whether the watchdog reports the alarm of fault disappearance, and returning to step A when the watchdog reports the alarm of fault disappearance. Further provided is a device for reporting fault generation and disappearance. In this technical solution, the operation process is simple and the development and maintenance are very convenient.

The invention discloses a hydrogen leakage intelligent detection system based on a wireless sensing network, which comprises a hydrogen sensitive probe module, a wireless communication network module and a signal analysis processing module. The hydrogen sensitive probe module is connected with the signal analysis processing module through the wireless communication network module, after completing calibration, the hydrogen sensitive probe module makes filtering and modulation to a data signal, the wireless communication network module acquires and converses the analog data signal, makes processing according to the calibration result, makes judgment according to the processing result, transmits the processing result to a concourse center in a wireless way, and then transmits to a information analysis processing module. The hydrogen leakage intelligent detection system based on a wireless sensing network has the advantages of small size, low cost, convenient installation, strong anti-interference capability, quick response speed, and high safety.

The invention provides a single queue cycle dispatching method and device. The method includes the steps: dispatching a pre-dequeued queue number according to a dispatching rule, reading first package descriptor information of a corresponding queue by taking the queue number as an address, and temporarily storing the read first package descriptor information of the corresponding queue; selecting a dequeued temporarily stored queue according to a dequeuing rule, and continuously dequeuing all sections of a temporarily stored queue package until the queue is switched by taking a clock cycle as a unit according to the first package descriptor information of the temporarily stored queue and acquired package section node information of the temporarily stored queue. By the aid of queue number dispatching of the comprehensive queue and second-level package descriptor dispatching of the queue, single-cycle dequeuing dispatching is achieved, dequeuing capacity and dequeuing bandwidth are furthest improved, high dequeuing bandwidth is achieved under small system clock frequency, power consumption of a chip is greatly reduced, and dequeuing performance is improved.

The invention relates to the field of embedded technology, and discloses a method for long-connection communication of an embedded terminal, which is used to solve the problems of high cost of establishing multithreading and complicated data synchronization. The present invention only creates a separate communication thread; when the long connection between the embedded terminal and the server is disconnected abnormally, the communication thread invokes the initialization interface of the embedded terminal to realize automatic reconnection; when the embedded terminal needs to send a message, The communication thread calls the message sending interface of the embedded terminal to send the message; when the embedded terminal needs to receive the message, the communication thread calls the message receiving interface of the embedded terminal to receive the message; The incoming message queue is processed one by one; in the process of processing one by one, if the current message processing fails, the message will be cached and wait for the next sending cycle. The present invention is suitable for embedded terminal long connection communication.

The invention provides an industrial control computer data dump method and system. The industrial control computer data dump method includes the steps: outputting a data file by a software interface of an industrial control computer; analyzing the data file outputted by the software interface of the industrial control computer into an XML (extensive markup language) format file; transmitting the analyzed XML format file to a corresponding file of a data server; data file processing: executing pre-configured SSIS (SQL server integration services) and dumping the XML format file transmitted to the data server to a database. By the aid of the technical scheme, the file outputted by equipment is automatically acquired, various format data files generated by the equipment are compatible, formats are unified, local data can be mapped to a remote server in real time, and a simple, convenient, safe and reliable data dump mode is provided.

The invention discloses a distributed message switching method and system. Through the method disclosed by the invention, various functions designed for the message switching system are modularized ina micro-service way and divided into different function entities; the coupling between the function entities is reduced, the decentralizing of the message switching is realized, the development and the maintenance are more convenient. The information can be switched in real time by using a UDP multicast way, and the efficiency and the performance are improved.

The invention provides a control method and system for fine-tuning alignment operation of an incoming train. After controlling the train to enter the fine-tuning alignment mode, the method periodically collects train information, controls the train to perform fine-tuning alignment operation according to the standard fine-tuning distance, and When the fine-tuning alignment running distance exceeds the protection distance, control the train to perform emergency braking, and when the fine-tuning alignment running speed exceeds the protection speed, control the train to perform emergency braking, and at the same time control the number of fine-tuning when the train is fine-tuning in the same direction. The system includes a fine-tuning alignment mode entry module, a train information collection module, a fine-tuning alignment operation module and a fine-tuning alignment mode cut-out module. The present invention realizes the control and protection of the fine-tuning alignment of the train, prevents the phenomenon of not reaching the calibrated parking point or passing the calibrated parking point that may occur again during the fine-tuning alignment, and ensures that the train can fine-tune the alignment smoothly during the fine-tuning alignment. The correct and reliable fine-tuning alignment of incoming trains is realized.

The invention provides a method and device for generating warning data of a network management system. The method comprises the following steps: acquiring log data which is reported by a network element in the network management system and used for recording events of the network element; matching the log data with preset filtering rules one by one; if the log data is matched with one filtering rule, filtering out the log data, else, continuing the matching of the next filtering rule until finishing matching all the filtering rules; and if all the filtering rules are not matched with the log data, converting the log data according to the preset conversion rule from log data to warning data so as to generate the warning data of the network management system. The invention implements separation of the operational procedure and service data processing as well as loose coupling of data acquisition and data analysis, has high capacity for processing mass data, and is convenient for development, maintenance and failure positioning.