77results about How to "Not paralyzed" patented technology

The embodiment of the invention discloses a data access method and a uniform resource locator (URL) server used for improving the reliability, performance and extendibility of a network file system. The data access method comprises that: a first URL server receives a data access request carrying a URL address transmitted by a user; if the first URL server determines that the resource pointed by the URL address is stored in the first URL server, corresponding read-write operation is executed on the resource according to the data access request; and if the resource is not stored in the first URL server, a second URL server where the resource pointed by the URL address is positioned is queried, and the data access request is forwarded to the second URL server, so that the second URL server executes corresponding read-write operation on the resource according to the data access request. The embodiment of the invention also provides a URL server. The data access method and the URL server can effectively improve the reliability, the performance, and the extendibility of the network file system.

The invention provides a system and a method for self-isolating an abnormal battery. The system comprises a switch control module, a battery detection module, a data analysis module and at least two switch battery modules, wherein each switch battery module comprises an isolating switch, a main loop switch and a battery; each main loop switch is connected with the corresponding battery in series; each isolating switch is connected with a series line which comprises the corresponding main loop switch and battery in parallel to form one switch battery module; the switch battery modules are connected with one another in series; the battery detection module is connected with the batteries and the data analysis module respectively; and the switch control module is connected with the main loop switches, the isolating switches and the data analysis module respectively. The problem that a whole traditional battery pack cannot further work and can only be maintained or recycled due to the problems in the aspects of the lifetime time and the like of one battery is solved.

The invention provides a system and a method for structural health monitoring based on a block chain technology and a smart contract. The system comprises a data acquisition module, a data temporary storage and transmission module, a data analysis module and an intelligent monitoring module; the data acquisition module comprises a sensor and a digital camera which are arranged on a building structure, and the sensor and the digital camera are used for acquiring original data; the data temporary storage and transmission module comprises a local gateway, and the local gateway is in wireless connection with the data acquisition module and the data analysis module; and the data analysis module comprises a block chain network system and the health monitoring smart contract deployed in the blockchain network system. The information among the participants is accurate, efficient and shared, and the operation efficiency of the whole system is improved from the perspective of data management and application. The structure health monitoring system is effectively prevented from being paralyzed under the condition of a server fault or a network fault.

The invention discloses a charging-discharging control circuit of a vehicular power battery pack, which at least comprises a flexible connection battery pack module 1, a data acquisition module 2 and a control module 3, wherein the flexible connection battery pack module 1 at least comprises a battery unit and a flexible connection unit. The charging-discharging control circuit disclosed by the invention realizes switching of single battery connection modes of the vehicular power battery pack under the charging and discharging conditions; when the vehicular power battery pack is charged, all single batteries are charged in a series connection mode, therefore low-current fast charging under high voltage is realized easily, and the charging speed is improved; when the vehicular power battery group is in a discharging state, the single batteries are connected in parallel and then connected in series, and thus the fault rate of the whole battery pack system is reduced; and the control circuit disclosed by the invention can ensure that the consistency of the single batteries in the battery unit is kept well, the optimal property of each single battery is expressed, the battery volume is fully utilized, the life of the battery pack is prolonged, and favorable practical application value is achieved.

The invention discloses a FLASH writing operation processing method, system and equipment, including: before performing the writing operation on the FLASH, backing up the data to be rewritten in the FLASH; after completing the writing operation on the FLASH, initiating an interrupt request; After receiving the interrupt request, enter the interrupt processing, and judge the legality of the write operation according to the write operation record; when determining that the write operation is legal, exit the interrupt processing, and when determining that the write operation is illegal, according to the backup Restore the overwritten data. By using the invention, when it is determined that the write operation is illegal, the rewritten data can be restored, so that even if a wrong write operation occurs, the system will not be paralyzed due to wrong modification.

The invention relates to a PBT network flow control method. The PBT network comprises a source PBT equipment and at least two destination PBT equipments, which are respectively backups of the other one. The method comprises configuring the link between the source PBT equipment and one destination PBT equipment as the working link; and configuring the link between the source PBT equipment and the rest of PBT equipment as the protection link. When the working link and the destination PBT equipment connected with the working link are normal, the flow is transmitted through the working link. When the working link or / and the destination equipment connected with the working link fails / fail, the flow is switched to the normal protection link. The invention adopting a PBT network structure with the same source and hetero-sink can ensure the network safety. Corresponding to the method, the invention also provides a PBT network flow control device.

The invention relates to security fields and discloses a method of video recording document storage and data recovery of a digital hard-disc video recorder and a system thereof. A data document area and a summary information area are pre-arranged on a hard disc, the data document area comprises a plurality of pre-established data documents, each data document comprises index information and video recording data, and the summary information area comprises at least one B+ tree. The index information of the data documents is dispersed by means of abrasive balance characteristics of B+ tree structure operation so as to reduce the rate of hard-disc faults, eliminate hotspot areas, guarantee completeness and order of all the data documents and summary information of the video recording documents in the B+ tree of the summary information area, and accordingly ensure correctness of the video recording documents of the digital hard-disc video recorder and provide a recovery method of complete data. The system can not be broken down by single-point faults.

An industrial uninterruptible power supply comprises a bypass system, and a first mainframe and a second mainframe identical in structure, wherein a filter, a first input isolation transformer, a pulsed rectifier, an inverter, an inverter transformer and a first static switch, which are connected with each other in sequence, are arranged in the first mainframe; a second static switch is also arranged in the first mainframe; the output end of the first static switch is connected with the output end of the first static switch; the nodes of the pulsed rectifier and the inverter are connected with the cathode of a blocking diode; the anode of the blocking diode is connected with one end of a reflected noise eliminating inductor; the bypass system includes a second input isolation transformer and a voltage stabilizer connected with each other in sequence; and the output end of the voltage stabilizer is connected with the output end of the first static switch, and with the input end of the second static switch. The industrial uninterruptible power supply provided by the invention has at least one advantage to improve the running reliability of equipment.

The invention discloses a split pressure bearing type solar water heater, comprising a heat collecting header (15), a plurality of heat collecting and guide units arranged in parallel, a pressure bearing water tank (8) and a temperature difference control unit, wherein, a heat exchange pipe coil (82) is arranged inside the pressure bearing water tank (8) which is connected with the heat collecting header (15) by a conduit tube A (6) and a conduit tube B (7) which is provided with a recycle pump (11); the inner wall of the pressure bearing water tank (8) is provided with a temperature sensor B (13) which is used for sensing the water temperature inside the pressure bearing water tank (8), that is the hot water temperature T13, and for outputting the hot water temperature T13 to a temperature difference controller (14); a temperature sensor A (12) is arranged on the outer wall of a heat pipe C (3c) of the third heat collecting and guide unit, the temperature sensor A (12) is used for sensing the temperature inside a vacuum heat collecting pipe in the third heat collecting and guide unit, that is the heat energy temperature T12, and for outputting the heat energy temperature T12 to the temperature difference controller (14) which compares the difference value between the received hot water temperature T13 and the heat energy temperature T12 and obtains the on and off information for driving the recycle pump (11), wherein, delta T is equal to T12 minus T13.

The invention relates to a standing wave ratio detection and high-power protection circuit with adaptive control, including a signal isolator, a power amplifier tube protection circuit, a three-stage power amplifier tube, a high-power high-isolation isolator, and an automatic calibration detection circuit , forward output coupler, reverse output coupler, the signal isolator, power amplifier tube protection circuit, three-stage power amplifier tube, forward output coupler, high-power high-isolation isolator, reverse output coupler The devices are connected in turn, the input ends of the automatic calibration detection circuit are respectively connected to the forward output coupler and the reverse output coupler, and the output ends are respectively connected to the power amplifier tube protection circuit and the three-stage power amplifier tube. Compared with the prior art, the invention has the advantages of high safety, wide application range, strong adaptability and the like.

The invention discloses an automatic network activation system based on a double-track guaranteed production mechanism, which belongs to the technical field of network activation and comprises a workorder receiving module, a work order decomposition module, a work order scheduling module, a network element construction module and a work order reporting module, wherein the work order receiving module serves as an application initial module. Interaction between the modules is realized through a message queue or an intermediate table, and the system adopts a layered structure, so that the coupling degree between the system modules is reduced to the maximum extent, and the robustness of the system is improved; the advantages of a memory database and a traditional database are fully utilized,single dependence of the system on the databases is reduced, it is guaranteed that when any database is abnormal, the network activation work order can still be supported to continue to flow based onthe other database, and system paralysis cannot be caused; sufficient recovery time is provided for database faults of the system, and the direct perception influence of a user is reduced.

The invention relates to a cellular emergency lighting management system which comprises multiple emergency lamps, an emergency power source, a detection unit, control units, a control panel and a remote control terminal. The detection unit is used for detecting fault state of the emergency lamps, the control units are arranged inside the emergency lamps respectively to control the detection unit to detect the emergency lamps in real time, the control panel independently communicates with each emergency lamp through a wireless network, and the remote control terminal communicates with the control panel to enable the control panel to independently communicated with each control unit through the wireless network and enable the remote control terminal to control the detection unit to detect each emergency lamp in real time so as to acquire the fault state of each emergency lamp. The cellular emergency lighting management system breaks through conventional detection methods, and mutual interference among signals of the emergency lamps is avoided, so that accuracy and stability in detection are improved, and detection efficiency is improved. The cellular emergency lighting management system is economical, practical and suitable for large-scale popularization.

The invention discloses a WIFI-based elderly home remote monitoring system. The system comprises a WIFI network, a master control terminal module and a remote monitoring center. The WIFI network comprises a wireless access point and a terminal node, the wireless access point and the terminal node adopt an LWIP protocol for networking, when the terminal node is connected, the wireless access point performs SSID and password matching on the terminal node, and TCP connection is established after successful matching; the terminal node transmits the acquired environment data to the wireless access point; the main control terminal module acquires the environment data from the wireless access point, and is also responsible for detecting whether the old people fall down or not, and sending the environment data and fall detection information to the remote monitoring center; and the remote monitoring center stores the received data in a local database, and can perform operations such as addition, deletion, modification, checking and display on the data. According to the invention, real-time monitoring of the living environment and the falling behavior of the elderly can be realized, and when the environment data is abnormal or the falling condition occurs, countermeasures can be taken in time.