35results about How to "Guaranteed State Consistency" patented technology

A switching-over circuit of engine redundant electric control system consists of master-backup system control circuit separately set on two circuit board with the same function. It is featured as forming said each control circuit by CPU processor, information exchange circuit, CPU interface circuit, master-backup control logic circuit and state processing logic circuit; carrying out real time monitor on master-backup state by utilizing digital signal between master-backup circuit board and generating master-backup control command according to monitored information. Its controlling method is also disclosed.

The present invention relates to a simulation test system based on fault injection, including a simulation module, a test module, a data collection and analysis module and a test real-time monitoring module, and the simulation module, the test module, the data collection and analysis module and the test real-time monitoring module are all It is connected to the shared memory and the data in the shared memory is shared. By modifying the data in the test module, it can intervene in the work of other modules to complete the fault injection of the simulation test system. A simulation test system based on fault injection of the present invention can flexibly change the data generated in the test process, provide more effective test means, avoid the disadvantages of directly modifying the simulation model when performing fault and abnormal tests, and eliminate the faults of the system The domain is separated from the normal domain to ensure the state consistency of the cross-link system during the test process, which is helpful to study the real impact of faults on the target system and related failure behaviors, and to evaluate the effectiveness of the fault tolerance mechanism of the target system.

The invention relates to the field of real-time network data broadcasting, and in particular relates to a real-time market data broadcasting system and a real-time market data broadcasting method with state consistency. The real-time market data broadcasting system is simultaneously arranged a host computer or a backup computer or arranged on a host computer and a plurality of backup computers; all original service processing data are stored in a log area in a working page memory of the host computer; a broadcasting module is used for scanning market data of the data area of the working page memory in real time, used for establishing indexes and used for ordering data streams; according to the situation that whether a present server is the host computer or a backup computer and whether the computer is in the recovery state or the active state, and the like, a state computer is used for tracking service state and used for controlling whether the broadcasting data can be issued to the market, so that the broadcasting module can efficiently process memory data. Compared with the prior art, the system has the advantages that rapid positioned data and a cache structure of the state can be established at a server, low response time delay is ensured while handling capacity is ensured, single-point network bottleneck is avoided, and the market stability is improved.

The invention relates to a measurement and calibration integrated marine fiber bragg grating strain sensor system. The system is composed of a fiber bragg grating strain sensor and a sensor calibration device. Two ends of a fiber bragg grating are fixedly connected with a sensor fixed end and a sensor movable end. The sensor fixed end is fixedly connected with a positioning plate through utilization of a fixed end welding base. The sensor movable end is connected with the positioning plate through utilization of a movable end welding base. The movable end welding base can move front and back along the positioning plate, so a distance between two fixed points of the fiber bragg grating is an effective strain length L. A high-precision differential screw is fixedly connected with the positioning plate through utilization of a screw mounting base. The screw mounting base and the movable end welding base are connected through utilization of a return spring. Through matching of the high-precision differential screw and the return spring, the sensor movable end can be controlled to slide front and back and sliding displacement deltaL of the sensor movable end can be precisely controlled,so a standard dependent variable epsilon=deltaL/L is applied to the fiber bragg grating strain sensor, and the fiber bragg grating strain sensor is mounted or calibrated.

The invention is applicable to the field of communication and provides a method and device for controlling a camera through Bluetooth, the camera and a portable terminal. The method comprises the steps that the camera with a Bluetooth module starts a photographing function; after the camera receives a Bluetooth connection request sent by the portable terminal with the Bluetooth module to the camera through the Bluetooth, the camera and the portable terminal carry out Bluetooth connection, wherein the camera and the Bluetooth module of the portable terminal support Bluetooth low energy (BLE); the camera carries out photographing after receiving a photographing instruction sent by the portable terminal through the Bluetooth; after the camera finishes photographing, the camera compresses photographed pictures into thumbnails; and the camera sends the thumbnails to the portable terminal in an asynchronous transmission mode through the Bluetooth. Through adoption of the method, the device,the camera and the portable terminal, the power consumption of the camera is low, the camera can stand by for a long time, the bandwidth transmission is reduced, a program can be operated normally, and the user experience is relatively good.

The invention discloses a sounding anti-radiation device, which includes thermistors and a visor. The two thermistors are oppositely arranged, and are separated by the visor; the visor includes a separator plate, a first baffle plate and a second baffle plate, the two thermistors are separated by the separator plate, and the first baffle plate and the second baffle plate are arranged at two sidesof the separator plate respectively and are connected with the separator plate. By adoption of the two thermistors, state consistency between the two thermistors can be well ensured, the two oppositely arranged thermistors are separated by the separator plate, one thermistor is prevented from direct radiation of the sun, during detection, the lower temperature is adopted, and thus direction radiation of the sun can be prevented from influencing correction. On this basis, the invention also provides a rocketsonde adopting the sounding anti-radiation device.

The invention discloses a high-power battery test system and method, and belongs to the technical field of battery testing, and the system is characterized in that the system comprises a charging subsystem which charges M batteries and obtains the charging data of each battery; and the discharging subsystem is used for discharging at most M-1 batteries at the same time and acquiring the discharging data of the batteries. According to the invention, multiple to-be-tested batteries can be charged at the same time, and the multiple to-be-tested batteries can be discharged one by one in sequence. Aiming at the test requirement of low charging rate but high discharging rate, especially the requirement of high-rate pulse discharging, the test equipment provided by the invention can greatly reduce the requirement on the number of high-power discharging equipment and reduce the test cost.

The invention discloses a data migration processing method and device. The method comprises the following steps: locking a customer; after the client is successfully locked, exporting migration data of the client from the source system; performing data conversion on the migration data to obtain target data, the data conversion being to convert the migration data into the target data of a target system according to a conversion relationship in a data mapping table; performing data verification on the target data; after the data verification succeeds, importing the target data into the target system; and unlocking the client. According to the method, a series of processes such as locking, verification and unlocking are designed to be scheduled for multiple systems, in the migration process with the large client amount and concurrency amount, the client state consistency in the data migration process is guaranteed, and then the technical problem of data consistency in the data migration process is solved.