30results about How to "Ensure system security" patented technology

The invention relates to a cloud intelligent evidence obtaining system of a mobile Internet. The system comprises a client installing an evidence-obtaining App and used for sending an evidence-obtaining request to the evidence-obtaining App, a cloud server for verifying the evidence-obtaining request and automatically loading a corresponding intelligent terminal platform and a target App accordingto the evidence-obtaining request after passing of the verification, a login system for detecting the fact that the intelligent terminal platform and the target App are installed and automatically log in the cloud server according to the evidence-obtaining request, and a screen-recording evidence-obtaining system for controlling the cloud server to share the screen thereof to the client installing the target App after successful login and starting screen recording of the cloud server after screen sharing; and the cloud server automatically performs encryption operation and time stamping processing on screen-recorded videos after finishing of screen recording. According to the system, the whole-evidence obtaining process and stored content are both stored in the cloud server, and the cleanness and the system security of the whole evidence-obtaining process are guaranteed.

The embodiment of the invention discloses a method and device for acquiring the GPU temperature through a server BMC. The method comprises the steps that an NVIDIA GPU temperature sensor function in an NVML management library is called, and a temperature value of an NVIDIA GPU is acquired; a temperature attribute of the NVIDIA GPU is defined, and the temperature value of the NVIDIA GPU is transmitted to the temperature attribute of the NVIDIA GPU of an operation system; according to the server BMC IP, by using a GPU temperature transmission function, the temperature value of the GPU is writteninto the BMC. According to the method, the problems are solved that an NVIDIA manufacturer cannot provide technical support and accordingly the GPU temperature cannot be acquired, the server can acquire the GPU temperature, the GPU temperature is conveniently monitored, and the system safety is guaranteed.

The invention relates to a measuring system, in particular to a centralized scheduling method based on a distributed terminal to the measuring system. A remote gauger in a workstation inputs an on-site measuring device idle status to a workstation input device; a worker in the workstation inputs information requiring measuring to a station input device; a scheduling server processes workstation and station information obtained in a real-time manner via a communication network; based on a computing power of the workstation and a "first-in first-out" principle, the information requiring metering of each station is assigned to each station in the idle state, and assignment information is simultaneously transmitted to a station display device; the remote gauger in the workstation obtains a work task through the workstation display device, inputs a message that the on-site measuring device is in a working state into the workstation input device, and begins to measure the work task through the on-site measuring device; the remote gauger in the workstation, after completing a metering work, inputs a measuring result and a message that the on-site measuring device is in an idle state to the workstation input device; and the scheduling server receives measuring results of all workstations and the workstation on-site measuring device statuses, transmits the measuring results to a corresponding station completing the measuring task, and assigns a new measuring task to an idle station.

The invention discloses a power grid NFC device fingerprint authentication method and system based on CNN image recognition. The method comprises the following steps: preprocessing an analog signal during data transmission of the safety NFC equipment, drawing an image by using MATLAB software, extracting features through a convolutional neural network (CNN), and establishing a model library of a positive sample, thereby realizing non-contact safety monitoring of an NFC equipment access system. Through analog signal acquisition, image data preprocessing and image feature extraction, a correct equipment model library is established, and safety monitoring of the NFC equipment of the power grid is realized. According to the invention, access safety monitoring of the NFC equipment of the powergrid can be realized, and the safety and reliability of an electric power Internet of Things system are improved.

The invention relates to a mining hydraulic support for replacing hydraulic media under pressure. The hydraulic support comprises a balanced oil cylinder (5), a safety valve (4), a three-position four-way reversing valve (6), a stand column oil cylinder (7), a connecting pipeline, a liquid inlet pipeline and a liquid return pipeline. The hydraulic support is further provided with a first auxiliary pipeline (L1), a second auxiliary pipeline (L2), a third auxiliary pipeline (L3) and a fourth auxiliary pipeline (L4). The auxiliary pipelines are communicated with the oil cylinder (7) through an opening in the cylinder wall of the oil cylinder, and then are communicated with the liquid return pipeline or the liquid inlet pipeline to form a complete hydraulic loop after being sequentially connected with a one-way valve (2), a sequence valve (3) and a two-position four-way reversing valve (1). According to the scheme, liquid inside the oil cylinders can be replaced under the condition that the oil cylinders are not telescoped; meanwhile, the supporting force and drawing force of the oil cylinders are unchanged when the liquid is replaced; besides, oil cylinder corrosion is reduced by replacing 'dead water' in the oil cylinders.

The invention provides a time-limited user temporary role management method and device, and the method comprises the following steps: 1, receiving and processing a request of a user for requesting temporary permission, specifically including the steps: receiving the request of the user for applying for the temporary permission, after a request of a user for applying for the temporary permission isreceived, obtaining a user ID and use time for applying for the temporary permission; 2, when the survival time of the temporary role of the user expires, deleting the expired temporary role entry from the temporary role table. According to the invention, the survival time attribute of the temporary role can realize a mechanism of automatically deleting the expired temporary role, so the automation of temporary role management is achieved. Meanwhile, after the temporary role is expired, the user does not continue to have additional temporary permission, so the system security is ensured.

The invention relates to the technical field of heat treatment, in particular relates to a thermal treatment method for preventing stainless steel from being sensitized in a water chamber of a high-pressure heater, and aims at solving the problems that the stainless steel is sensitized and the expanding quality is bad caused by the large difference of linear expansion factors since materials of a pipe are different during the heat treatment after the girth welding of the water chamber of the high-pressure heater. The thermal treatment method is characterized in that the thermal treatment method is carried out on an outer housing, a thick pipe plate and a U-shaped pipe of the high-pressure heater, a welding line and a heat affected zone of the water chamber are annealed by the local heat treatment, and a thermal insulation carpet is arranged at the welding line side of the stainless steel to prevent heat energy to be directly radiated to a stainless steel part, so that the temperature of the stainless steel part can not be risen to the sensitization temperature. The temperature of the stainless steel part can not be risen to the sensitization temperature, the anti-scouring function of the U-shaped pipe can be improved, the pipe exposure accident rate of the equipment can be reduced, and the service life of the equipment can be prolonged.

The invention discloses a penetration test method in allusion to mobile geographic information security of underground pipelines. The method comprises the following steps: changing the suffix of an APK file into zip and decompressing the compressed file to obtain a class.dex file therein; copying the class.dex file into a catalogue to which a dex2jar.bat file belongs, executing a dex2jar class.dex command under a command line, and generating a class-dex2jar.jar file under the current catalogue; opening a jd-gui code check tool, importing the class-dex2jar.jar file and checking a reversed application source code; setting the address of a test machine and collecting a server-side interface list by utilizing the test machine; and carrying out vulnerability scanning on a server by using a burp suit tool through the server-side interface list, outputting a vulnerability analysis statement to the test machine, and carrying out sql injection test on a server side by utilizing a sqlmap tool so as to detect the sql injection vulnerabilities. The penetration test method is capable of finding the vulnerabilities of the application service programs on the underground pipeline map servers in allusion to the mobile GIS applications which carry underground pipeline route data, so as to prevent the data leakage of the underground pipelines.

The invention discloses a software management system and a software protection method thereof. The software management system comprises an analysis module, a reading module, a simulation sandbox module and a management module; the analysis module is used for analyzing a software installation package, therefore the size and brief introduction information of software is obtained; the reading moduleis used for reading the analyzed software installation package and obtaining configuration information of software; the simulation sandbox module is a created sandbox model completely isolated from the main system, and virus Trojan and the like carried in software can be prevented from invading the main system while the software is started; and the management module is used for performing operations such as unloading and updating on the installed software, thereby facilitating centralized management. According to the method and the system, the privacy setting module is added on the basis of existing software unloading updating and permission setting, and advanced permissions such as hiding, opening and rewriting of the software are set by logging in an account, so that the management rangeof the software is widened, the management effect of the software is improved, and meanwhile, personal privacy is protected.

The invention relates to a method for calculating CANOPEN protocol CRC (cyclic redundancy check) through redundant code words. In the method, 32-bit code words are used to calculate CRC to ensure thecorrectness of calculation processes, a data domain of a protocol to be sent out is filled with state data corresponding to the code words, and the state data corresponding to the code words is 0 or 1. Compared with technologies of the prior art, the method is advantageous in that effective communication is established among the modules adopting different technologies on the premise of ensuring safety.

The invention discloses a polarization coding quantum key distribution system encoder. A main laser device emits 45-degree linearly polarized light pulse laser signals, the 45-degree linearly polarized light pulse laser signals are divided into horizontal linearly polarized light and vertical linearly polarized light through a beam splitter and a polarization beam splitter, and the horizontal linearly polarized light and the vertical linearly polarized light are injected into a laser device 1, a laser device 2, a laser device 3 and a laser device 4 respectively, and the emergent polarized light and the injected polarized light of different lasers are consistent, and finally, single photon transmission is attenuated through beam combination. According to the encoder, the frequency domain consistency among multiple lasers can be realized under the condition that the lasers are adopted at the transmitting end of the polarization encoding quantum key transmitting system, so that the engineering implementation feasibility is ensured, and the system safety is also ensured.

The invention relates to a radar center power distribution box offline automatic detection system and method. The system comprises a multi-channel switching unit, a single-chip microcomputer control and numerical control collection unit, and a power distribution control signal driving output module. Through the single-chip microcomputer control and numerical control collection unit, the power distribution control signal driving output module is controlled to control on or off of the multi-channel switching unit for a power distribution work state of each circuit required for a radar center power distribution box, so as to collect a detected signal. The radar center power distribution box offline automatic detection system and method greatly improve security, convenience, compatibility andtraceability of system test while greatly enhancing test efficiency.

The invention discloses safe throttle which belongs to throttle technical field. It includes valve body and core. The valve body is set oil inlet and outlet which are connected. And it is also set blind hole. The valve core is set in the blind hole. And its outer surface is set round oil groove. While running, the valve core can change flow area; the round oil groove can not make throttle switch off fully; and it can avoid kong bursting while setting between safety valve outlet and oil case in forcing press. The invention can adjust flow speed and keep system safe by setting appropriate round oil groove area.

The invention discloses a remote control distribution box with an auxiliary power supply. The remote control distribution box comprises a distribution box body, a single-phase circuit breaker, a three-phase circuit breaker, an auxiliary power supply module, a distribution control circuit board, an alternating current contactor, a remote control power supply switch and an EMI filter. When the single-phase circuit breaker is in a closed state, AC220V input by the power supply equipment is converted into auxiliary power supply DC24V to be output, and when the three-phase circuit breaker is in a closed state, the power distribution control circuit board controls whether AC380V input by the power supply equipment is output or not according to a remote/local control state and a power-up signal state fed back by the environment control equipment. The remote control distribution box has a remote control state and a local control state, and can output DC24V when not outputting AC380V, so that the safety and convenience in use are improved.

A sequence-controllable energy storage device and method are provided. For each circuit breaker, a second time relay II, a third time relay III and a fourth time relay IV are switched on through an action of a first time relay I after a remote opening pulse signal is received by the first time relay I; a second control loop is connected to the second time relay II, the third time relay III and the fourth time relay IV which are in parallel connection; the inside of the third time relay III is provided with opening time; a normally open contact of the third time relay III is closed to perform opening in the opening time, and is disconnected in other time; the inside of the fourth time relay IV is provided with energy storage time; the inside of the second time relay II is provided with closing time; and the closing time and the energy storage time do not overlap. Opening and energy storage signals of shutdown circuit breakers are separated, and different pulse contacts of the time relays are utilized to control opening and energy storage respectively, thus reducing power consumption of a power supply and ensuring system safety.

A highly-integrated low-temperature stop valve with an overflowing function comprises an overflowing valve assembly, a connecting tube, a valve body, a valve cover and a hand wheel, wherein the overflowing valve assembly is connected to the valve body in an embedded mode through straight threads, so that a gas cylinder connecting pipeline is minimized, and the diameter of a valve passage is maximized; one end of the connecting tube is welded to the valve body, and the other end of the connecting tube is welded with a boosting liquid outlet of the gas cylinder; the hand wheel is in threaded connection to the valve body, and the valve body between the valve body and the overflow valve assembly is of a structure inclining outwards by 45 degrees, so that the hand wheel achieves the outward inclination angle of 135 degrees to the maximum degree.

The invention discloses a reverse reminding method. The reverse reminding method includes the steps of obtaining the residual power of a high-tension battery of a vehicle; obtaining the current gear of the vehicle; judging whether the vehicle enters the reminding mode or not according to the current gear and / or the residual power; determining corresponding reminding information according to theresidual power and prompting the reminding information to a user if the vehicle enters the reminding mode. The invention further discloses a reverse reminding device, the vehicle and a terminal. The reverse reminding method, the reverse reminding device, the vehicle and the terminal have the advantages that when the vehicle is in the reverse gear, different reminding information can be sent to a driver according to the residual power of the high-tension battery, the potential safety hazard is eliminated, and normal driving and system safety are guaranteed.

The invention provides a system for guaranteeing normal shut-down sulfur blow in a sulfur recovery process. The system comprises a natural gas output pipeline, a balance pipeline connected with the natural gas output pipeline in parallel, a balance valve arranged on the balance pipeline, a fuel gas pipeline and a release flare pipeline, and also comprises a first pipeline and a control valve group, wherein the first pipeline is arranged in the flow direction of a gas in the fuel gas pipeline, one end of the first pipeline is arranged behind the balance valve, the other end is arranged on the fuel gas pipeline, the first pipeline connects the balance pipeline with the fuel gas pipeline, and the control valve group is arranged on the first pipeline, and is used for controlling the pressure of a gas in the first pipeline. The system can effectively meet fuel gas required by emergency shut-down of a sulfur recovery workshop section, is safe and reliable, and can reduce the investment of enterprises and increase the economic benefit.