64results about How to "Avoid paralyzing situations" patented technology

The invention discloses a method and system for the security protection of an industrial control network. According to the method, the industrial control network is divided into at least two sub-network layers, wherein a firewall is arranged between the industrial control network and external networks, and a security protection module which controls data transmission among the sub-network layers is arranged in the industrial control network. The method comprises the following steps that the security protection module intercepts data messages transmitted among the sub-network layers; the security protection module judges whether operations requested by the data messages meet preset conditions or not; when judging that the operations do not meet the preset conditions, the security protection module interrupts the transmission of the data messages; when judging that the operations meet the preset conditions, the security protection module removes data with potential security risks from the data messages, and then transmits the data messages, from which the data with potential security risks are removed, to destination sub-network layers corresponding to the data messages. Through the method, the security and reliability of the industrial control network can be improved.

An embodiment of the invention discloses a method and a system for realizing load balance, wherein, the method is applied to a server cluster composed of at least two servers, including the following steps: receiving the load report transmitted by the servers of the server cluster, wherein, the load report contains calculating unit number loaded on the server and/or calculating unit number of each map area on the server; confirming a to-be-moved server and a coordinating server corresponding to the to-be-moved server after the overload server is judged according to the load report; and sending a moving order to the to-be-moved server and the coordinating server and receiving the moving result returned by the coordinating server. The method reduces the load of the overload server, avoids breakdown of the overload server due to long-time overloading, and then avoids breakdown of the whole server cluster due to overloading of one or several servers of the server cluster.

The invention discloses an intelligent control working station. The intelligent control working station comprises security protection equipment, wherein a working station main body is connected to the security protection equipment; supporting legs, a touch screen and a box door are arranged on the working station main body; anti-explosion electronic locks are arranged on the box door and the working station main body; an intelligent control unit, a working unit, a UPS unit and a self protection device which are connected with the touch screen are arranged inside the working station main body; the UPS unit is connected with the intelligent control unit and the self protection device; a through hole which allows a line to pass is formed in the lower end surface of the working station main body. According to the intelligent control working station, a control system and a using mode thereof, which are provided by the invention, the influence on a security protection system caused by power failure is avoided; meanwhile, relevant equipment is prevented from being destroyed by a person with an ulterior motive, the operation safety of an enterprise is well guaranteed, and the accidental loss of the enterprise is avoided.

The embodiment of the invention discloses a message processing method and device. The method comprises: an access controller multicast is configured to provide query message of a server required by a client and receive a query response message fed back by the server required by the client; when the number of the query response messages fed back by the server in a preset time exceeds a preset threshold value, the query response messages are cached, and a first detection message is sent to the server, if the first detection response message fed back by the server is received, it is determined that the server is not attacked, the cached query response messages are normally processed; and if the first detection response message fed back by the server is not received, it is determined that the server is attacked, the cached query response message is deleted. Therefore, the condition that the device is paralyzed caused by processing lots of response messages through the access controller when the server is attacked.

The invention relates to an integrated temperature and liquid level acquiring and transmitting device for a regenerative heat exchange system. The device comprises a multipath electrode type liquid level acquiring probe, a multi-way NTC 10K thermal resistance acquiring probe and an integrated temperature and liquid level acquiring and transmitting controller. The device is in communication with anupper computer system through an RS485 serial communication interface, and the communication protocol is a standard modbus_RTU protocol. When multiple integrated temperature and liquid level acquiring and transmitting controllers are required for a combination use, the integrated temperature and liquid level acquiring and transmitting controllers can realize a modularized cascading expansion of atransmitter through a three-wire serial expansion bus, so that the number of nodes mounted on an RS485 serial bus is reduced, and the acquisition rate is improved. The electrode type liquid level acquiring probe adopts an n + 1 acquisition working mode, so that the paralysis of a whole liquid level electrode detection system due to a failure of a common electrode in the traditional sense is avoided.

The invention provides an electrophoretic paint recovering and spray water washing system. The system comprises an electrophoretic paint tank (1), ultrafiltration tanks (2), pure water washing tanks (3), ultrafiltration liquid supply pumps (4), first filters (5), ultrafiltration modules (6), tank liquid discharge pipes (7), tank liquid discharge valves (8) and tank body communicating pipes (9). The tops of the ultrafiltration tanks (2) communicate with the tops of the pure water washing tanks (3) through the tank body communicating pipes (9), and the ultrafiltration tanks (2) and the pure water washing tanks (3) have liquid level differences from low to high, so that the electrophoretic paint recovering and spray water washing system can effectively recover electrophoretic paint in the pure water washing tanks, and the loss of partial electrophoretic paint and the pollution caused to the environment in the process that sewage treatment is performed on the electrophoretic paint can be avoided.

The invention relates to the field of software defined network security, and specifically provides a credible connection method and system of a software defined network. The method comprises the following steps: a controller sends a first authentication request to a switch, the switch sends first feedback information to the controller based on the first authentication request, the controller authenticates whether the switch is credible based on a first preset PCR value, the first authentication request and the first feedback information, and sends a configuration query request to the switch when the switch is credible, the switch sends a second authentication request to the controller, the controller sends second feedback information to the switch based on the received second authentication request, the switch authenticates whether the controller is credible based on a second preset PCR value, the second authentication request and the second feedback information, and feeds back configuration information to the controller based on the configuration query request when the controller is credible. By means of the above settings, a credible connection between the switch and the controller is established in the software defined network, thereby avoiding the situation that the network is affected to be paralyzed.

The invention provides a WEB service load balancing method and device, equipment and a medium. The method comprises the following steps: a server acquiring state notification data of each server; theserver establishing an equalization server list through the state notification data, and determining a representative server according to the priority of each server in the equalization server list; the representative server acquiring a WEB request through the virtual IP information; according to the real-time WEB server load information, selecting a server from the balance server list to serve asa response server, the response server responding to the corresponding browser according to the browser address, obtaining the WEB server load information of the response server in real time, and updating the corresponding state notification data. Autonomous cooperative work is achieved by knowing the load condition of each server through the state, load balancing equipment does not need to be additionally deployed, load balancing is completely achieved through self-organization of the balancing servers, and hardware investment of a user is reduced.

The embodiment of the invention discloses a task scheduling method and device, equipment and a storage medium. The method is executed by a management node of a task scheduling system, the task scheduling system comprises at least two management nodes, and the method comprises the steps that a target management node reads task parameters of a target task scheduling request in an application servicenode; the task parameters in the target task scheduling request are spliced into an executable command statement according to a preset executable command generator; heartbeat information sent by at least one candidate task submitter is received, and a target task submitter is determined according to the heartbeat information; and the executable command statement is sent to a target task submitter, so that the target task submitter sends the executable command statement to the cluster, the cluster executes the task scheduling request, and the target task submitter determines an execution stateof the target task in the cluster. Reasonable allocation of numerous tasks is realized, and high availability and task scheduling efficiency of the system are ensured.

The invention discloses a big data implementation system and method based on network security. A big data processing platform and a distributed computer group connected with the big data processing platform are arranged. The big data processing platform is internally provided with a data collector, an intelligent acquisition device, a redundant data cleaning system, a big data management system, a data traction device, a big data server, a data comparator, a big data storage pool, a big data operation log recorder and a big data secure storage system. The big data server transmits small class big data into the big data storage pool to be stored through the data comparator with the hardware security protection function, and in the process that the small class big data is uploaded to the big data storage pool through the data comparator, the data comparator calls data stored in the big data security storage system to be compared with the small class big data which is uploaded. Cost investment is reduced, the level of data security transmission can be further improved, and integrity of data is ensured during uploading or issuing.

The invention relates to an anti-attack fragmented message processing method and device, a computer and a storage medium, which are used for improving the anti-attack performance of the regrouping offragmented messages. The method comprises the following steps of determining whether the total number of fragmented messages in a hash table exceeds a first preset threshold value or not, wherein thehash table is used for recording message recombination items to be recombined and the fragmented messages which are suspended in each message recombination item to be recombined; and when the total number exceeds the first preset threshold value, clearing the message recombination items in the hash table based on a least recently used (LRU) algorithm.

The invention discloses an intelligent selective trigger switch which comprises a power supply anti-reverse connection module, an initiation processing module, a rear-stage power supply control module, a communication module, a power supply module and a processor module. The power supply anti-reverse connection module is used for preventing two power supply input lines of the intelligent selectivetrigger switch from reverse connection; the initiation processing module is used for completing the initiation processing process of a detonator; the rear-stage power supply control module is used for controlling the voltage of all stages of selective trigger switches to be the same; the communication module is used for realizing the bidirectional communication function between the intelligent selective trigger switch and an initiator; the power supply module is used for reducing the input voltage of the intelligent selective trigger switch to a voltage value at which each module can stably work; and the processor module is used for controlling and/or receiving instruction information of each module. The intelligent selective trigger switch realizes bidirectional communication between theselective trigger switch and the initiator, and has the advantages of gradual power supply, serial network and bus short circuit fault prevention. The invention also discloses an initiation system applying the intelligent selective trigger switch.

The invention discloses an integrated service system and method for human resource. The integrated service system for human resource includes a distribution unit, a service center unit and a TTS analysis unit, wherein by means of the distribution unit, the parallel processing technique can be realized and the operation, processing and analysis capability can be greatly improved, so that the operation speed can be improved; through combination of the distribution unit and the service center unit, the cost performance can be improved, and on the premise of guaranteeing the speed of operation, processing and analysis, the cost can also be reduced; by means of the service center unit, comprehensive service data can be obtained and the associated human resource management coverage is wide and the service data includes salary, insurance, contract, order and other data information; and through the TTS analysis unit, the fluency degree of processing, analysis and calculation can be improved, and when abnormity appears, the abnormity can be solved automatically and then can be processed, analyzed or calculated continuously, thus avoiding the situation that no response is given to abnormity.Besides, the integrated service method for human resource realizes the advantages being identical to the advantages of the service system.

A negative pressure vacuum system for filtering solid particles and a liquid comprises a first dust coarse filtration tank, a second dust coarse filtration tank, a first tee, a second tee, a vacuum tank, a first vacuum pump and a second vacuum pump, a gas inlet pipeline and a gas outlet pipeline are led out from the tank chamber of the vacuum tank, the first port of the first tee is communicated with the first gas outlet of the first dust coarse filtration tank, the second port of the first tee is communicated with the second gas outlet of the second dust coarse filtration tank, the third portof the first tee is communicated with the gas inlet pipeline of the vacuum tank, the first port of the second tee is communicated with the first gas inlet of the first dust coarse filtration tank, the second port of the second dust coarse filtration tank is communicated with the second gas inlet of the second dust coarse filtration tank, the third port of the second tee is externally connected with a user's vacuum use port, the pump ports of the first vacuum pump and the second vacuum pump are communicated with the gas outlet pipeline of the vacuum tank, the first vacuum pump is connected with the first vacuum filter and a first vacuum pump valve, and the second vacuum pump is connected with the second vacuum filter and a second vacuum pump valve. The system has the advantages of convenience in pipeline control, effectiveness in filtering dust particles, prolongation of the life of filter elements, improved system stability, high production efficiency and low cost.

The invention belongs to the technical field of information equipment waterproofing, especially information equipment with good waterproofing performance. Aiming at the poor waterproofing effect of the existing information equipments, the following options are proposed: including hosts, a housing and a heat sink, the front surface of the shell is provided with a display screen, and the outer surface of the display screen is provided with a blue light shielding plate, the upper surface of the host computer is provided with a keyboard and a touch pad, the host computer is internally provided with a circuit board, the lower surface of the heat dissipation seat is provided with a base, and the interior of the heat dissipation seat is provided with an exhaust fan; grooves are arranged at both sides edge positions of the lower surface of the heat dissipation seat, and four sets of jacks are arranged at both sides edge positions of the upper surface of the base. In the invention, each waterproof part cooperates to form a multiple waterproof structure, which greatly improves the waterproof effect of the equipment, has good heat dissipation property of the information equipment, and can meet different use requirements by changing the placement angle.

The embodiment of the invention discloses a data extraction method and device, electronic equipment, a storage medium and a program product, and the method comprises the steps: responding to a received data extraction request transmitted by a data extraction party, and obtaining a target data server address and target data object identification information carried by the data extraction request; determining the number of target data object requests based on the number of the target data object identification information; and obtaining the number of acceptable data object requests of the target data server according to the target data server address, and when the number of the target data object requests is smaller than or equal to the number of the acceptable data object requests, confirming the data extraction request.