1751 results about "Self protection" patented technology

The present invention relates to a system and method to enable subscriber self-activation and configuration of wireless data terminals by means of an activate button provided through the User Interface (UI). This allows for operations to be performed on the device by self-care. Any wireless device, in order to access the network needs credentials. This invention generates temporary credentials to present to the network for service activation. Once access is granted to the network, the device can be activated and configured for using the resources of the network.

The present invention utilizes agents embedded in content delivered to clients across a network to provide client-side security for the data delivered to a client. These embedded agents provide application-specific protection for the delivered content in which they are embedded and eliminate the need for using plug-ins for security functions. Different agents, e.g. programs such as Java applets, are configured having a variety of different client or application specific protection mechanisms, and the agents are dynamically configured, e.g. selected, in accordance with the application, the client to be protected or other environment criteria. Once the agent has been appropriately configured, the agent is embedded in the content, and the content is delivered to the client. Once delivered, the embedded agent is uploaded to the client and executed, providing the configured security protection at the client side for the content in which it was embedded.

The invention discloses a battery management system of a vehicle-mounted lithium power battery. The system includes a master control unit and slave control units. The master control unit is in communication connection with the multiple slave control units through a data bus. The master control unit is in connection with battery groups, the total voltage and total current of which are acquired. The master control unit is also connected to a DC power supply, and is in connection with a charger through an external CAN bus. The master control unit mainly includes: a master microcontroller module, a total voltage detection module, a total current detection module, a battery system insulation detection module, a battery operating environment temperature detection module, a relay driving module, a data storage module, a bus communication module, an isolated power supply module, and a physical interface module of power supplies, data, signals, etc. The system provided in the invention has the advantages of simple structure, strong expansibility, and adaptability to different numbers of batteries. Being fully functional, the system has the functions of temperature control, equalization processing, battery performance evaluation, and battery self-protection, etc.

The invention discloses whitening and freckle-removing cream and a preparation method thereof. The whitening and freckle-removing cream comprises water, butanediol, caprylic / capric triglyceride, isohexadecane, glycerol, cyclopentasiloxane, butyrspermum parkii butter, trehalose, cetearyl olivate, sorbitan olivate, cetearyl alcohol, cetearyl glucoside, magnolia sieboldii extract, citrus peel extract, hydrogenated lecithin, phytosterol, bisabolol, tocopheryl acetate, glycyrrhiza glabra root extract, thymus serpyllum extract, panthenol, sodium hyaluronate and the like. The whitening and freckle-removing cream disclosed by the invention can be used for inhibiting tautomerase activity of tyrosinase and dopachrome and hindering polymerization of DHI; the formation of melanin in a body is inhibited, the regeneration capability of pigment cells is improved, the pigment deposition is reduced and pigment cell detachment is promoted; the self-immunity of the cells is enhanced, and the skin elasticity and a metabolism function are improved; and the self-protection capability of skins is improved and the safe whitening and freckle-removing effects are realized.

Techniques are disclosed to control output power from a switching power supply. For example, a switching regulator according to aspects of the present invention includes a switch to be coupled to an energy transfer element of a power supply. A controller is coupled to the switch to control a switching of the switch to regulate an output voltage and an output current at an output of power supply output. A feedback circuit is coupled to the controller. The feedback circuit is coupled to receive a feedback signal from the output of the power supply. Combinations of the output voltage and the output current correspond to output regions. There is at least one regulated output region and one unregulated output region. At least one unregulated output region is a self protection auto-restart region. Within at least one unregulated output region, the switching regulator provides continuous output power at substantially the maximum output power of the switching regulator. Each output region corresponds to a magnitude and duration of the feedback signal.

The invention discloses an omnibearing software self-protection method which comprises: a plurality of hooks are built to monitor a plurality of operation requests which can be applied to the protected software; when at least one of the hooks intercepts the related operation requests, the intercepted operation requests are judged whether to be related with the protected software or not, if yes, then the intercepted operation requests are rejected; if not, then intercepted operation requests are allowed; wherein, a plurality of operation requests which can be applied to the protected software comprise: an operation request which can be used for tampering with a document; an operation request which can be used for tampering with registry keys; an operation request which can be used for modifying, reading and locking a memory and modifying the memory attribute; an operation request which can be used for an operation progress; an operation request which can be used for stopping and hanging up a thread; an operation request which can be used to inject the code; an operation request which can be used to inject a dynamic library; an operation request which can be used to queue APC and an operation request which can be used to simulate information.

The invention provides a high-carbon high-chromium high-niobium cast iron self-protection flux-cored wire. The flux-cored wire has a steel belt as an outer skin. The flux core comprises the following components in weight percentage: 10 to 30 percent of ferroniobium, 20 to 30 percent of high carbon ferrochrome, 0.1 to 3 percent of V, 0.2 to 3 percent of W, 0.6 to 0.8 percent of ferromanganese, 0.2 to 0.8 percent of 75 ferrosilicon, 20 to 30 percent of chromium carbide, 5 to 12 percent of graphite, 1 to 10 percent of aluminum-magnesium alloy, 1 to 5 percent of silicon carbide and 1 to 3 percent of ferroboron; and the percentage of a counter weight is between 46 and 54 percent. The high-carbon high-chromium high-niobium cast iron self-protection flux-cored wire has the advantages of high hardness, good wear resistance, good oxidation resistance and strong shock resistance, and is widely applied to grinding rolls and grinding disks of coal grinding machines in thermal power plants and cement plants, material charging equipment in blast furnaces(material charging slots, receiving cones, material storage areas and sieve plates), slag vertical mills, hammer heads and rollers of crushers and sintering equipment workpieces in steel plants.

The invention discloses a device, a system and a method for garage recovery. The method comprises the steps of collecting the running information of a system and application software, and determining whether to trigger garage recover according to the received data and preset judgment strategy; outputting a trigger massage if a trigger is needed; and triggering to execute garage recovery according to the trigger massage received by an execution device. The embodiment of the invention can provide self-protection according to predictable garage recovery time points, such that the system reduces system impact when executing garage recovery, and the data integrity is guaranteed; the system can control the execution of garage recovery during system idle period and small throughput period, thus reducing the system block caused by garage recovery; the system can recovery garage regularly, the execution duration is predictable, therefore, the execution time points, frequency and duration of garage recovery can be adjusted on the basis of different systems in order to reduce system cost.

A backlight inverter for an LCD panel which is capable of detecting a fault in a transformer device or an open-lamp condition and performing a control operation to stop its operation upon detecting the fault in the transformer device or the open-lamp condition. The inverter supplies a PWM signal through a switch in normal operation. The inverter also detects a voltage corresponding to current flowing through each lamp in a lamp device and determines from the detected voltage whether the open-lamp condition has occurred. The inverter further detects a voltage at a midpoint of secondary windings of the transformer device and determines from the detected voltage whether the fault exists in the transformer device. In the event of the open-lamp condition or the fault in the transformer device, the inverter turns off the switch.

The invention relates to a malicious code analysis method, in particular to a system and method for malicious code analysis based on cloud computing. The system for malicious code analysis based on cloud computing comprises a malicious code analysis proxy and a malicious code could analysis system. The malicious code analysis proxy comprises a safety monitoring engine, a searching and killing engine, a local black list, a local white list, a behavior pattern bank and a virus characteristic bank. The malicious code could analysis system comprises a characteristic judging and searching engine, a sample storage center, multiple analysis engines, a global black list, a global white list, a global malicious behavior characteristic bank and a global virus characteristic bank. According to the system and method for malicious code analysis based on cloud computing, safety servitization is achieved based on the cloud computing technology, compatibility and cooperation of the multiple searching, killing and analysis engines are achieved, the threat analysis and response ability of the whole network is improved through the strong data processing and analysis ability of a cloud terminal, rapid discovery, rapid analysis and rapid processing of host threats are achieved, the safety of the host operation environment is guaranteed powerfully, and the self-protection ability of a host intrusion detection protective system can also be improved.

A resetable over-current self-protecting semiconductor power device comprises a vertical power semiconductor chip and an over-current protection layer composed of current limiting material such as a PTC material. The over-current protection layer may be sandwiched between the vertical power semiconductor chip and a conductive plate, which could be a leadframe, a metal plate, a PCB plate or a PCB that the device is mounted on.

Techniques are disclosed to control output power from a switching power supply. For example, a switching regulator according to aspects of the present invention includes a switch to be coupled to an energy transfer element of a power supply. A controller is coupled to the switch to control a switching of the switch to regulate an output voltage and an output current at an output of power supply output. A feedback circuit is coupled to the controller. The feedback circuit is coupled to receive a feedback signal from the output of the power supply. Combinations of the output voltage and the output current correspond to output regions. There is at least one regulated output region and one unregulated output region. At least one unregulated output region is a self protection auto-restart region. Within at least one unregulated output region, the switching regulator provides continuous output power at substantially the maximum output power of the switching regulator. Each output region corresponds to a magnitude and duration of the feedback signal.

Provided are techniques for automatically protecting portable and wearable electronic devices from potential hazards by predicting when such hazards may occur. Techniques may include monitoring a plurality of sensors on the mobile computing device; receiving, on the mobile computing device, context data from a plurality of context-service applications; selecting a set of device-protection policies based upon an availability of the plurality of sensors and the plurality of context-service applications, wherein the set of device-protection policies are configured to determine a level of risk to the mobile computing device based on sensor data received from the plurality of sensors and the context data; applying the sensor data and the context data to the set of device-protection policies to generate the level of risk; and triggering a self-protection action if the level of risk exceeds a pre-determined threshold level of risk.

The invention relates to an anti-explosion fire reconnaissance firefighting robot which comprises an anti-explosion fire reconnaissance firefighting robot movable base plate, a manipulation control box, an anti-explosion fire water monitor, an anti-explosion reconnaissance assembly, an anti-explosion road condition shooting assembly, an anti-explosion fire hose falling-off assembly and an anti-explosion self-spraying cooling assembly. The movement and safe properties of the fire reconnaissance firefighting robot under the environments of the complex ground and severe disasters are improved; the anti-explosion capacity and the waterproof property of the fire reconnaissance firefighting robot are improved; the loading capacity of the fire reconnaissance firefighting robot is improved; and the tensile capacity, the obstacle crossing ability, the stair climbing capacity and the capacity of passing of a 'unilateral bridge' with the left portion and the right portion being different in height during dragging of a fire hose from the rear portion are improved. It is ensured that when flames burn a fire reconnaissance firefighting robot body or a track, the fire reconnaissance firefightingrobot can still move; and the success self-protection rate during robot withdrawing is increased, the automation degree of the robot is increased, the application range of the fire reconnaissance firefighting robot is enlarged, and the practicability of the fire reconnaissance firefighting robot is improved.

The invention relates to a smoke exhaust, fire extinguishment and dismantling robot which comprises a vehicle body, a chassis walking device installed on the lower part of the vehicle body, a power device, a working device, a waterway system, a hydraulic system and an electric system, wherein two exhaust blowers are arranged on the upper part of the vehicle body; the side surfaces of the two exhaust blowers are respectively provided with a water cannon and a foam cannon; and a dismantling device is installed at the front end of the vehicle body and comprises an arm frame and a dismantling tool which is connected with the arm frame through a quick change coupler. The smoke exhaust, fire extinguishment and dismantling robot is concise in structure and strong in practicability, can be used for replacing a fire fighter to enter into a fire scene with important safety hidden dangers to carry out short distance fire fighting operation, can carry out water and foam remote control spraying and video transmission on the fire scene, has a self-protection sprinkling device and has the functions of large power smoke exhaust, water mist spraying and strong walking and climbing as well as the functions of dismantling, object grabbing and bucket to an obstacle, so that the working efficiency is greatly improved, the safety is high, and the smoke exhaust, fire extinguishment and dismantling robot is convenient to popularize and apply.

The invention discloses a pixel circuit, an organic electroluminescence display panel and a display device. By adding a switch module to the pixel circuit, an abnormal driving current outputted by a driving module can be prevented from flowing to a light emitter when a first display frame starts, and a screen flickering problem of a display panel generated during starting the first frame can be ameliorated, as the abnormal driving current of the pixel circuit can be prevented by the switch module from flowing to the light emitter, so high level signals can be prevented from flowing to a low level signal end before low level signals are inputted to the low level signal end of the pixel circuit, the low level signal end of the pixel circuit has no positive potential before the low level signals are received by the low level signal end, and thereby a problem that abnormal display of the display panel caused by a self-protection function of a power source signal chip triggered by positive and negative potential reception pressures at the low level signal end of the pixel circuit can be ameliorated.

The invention relates to an electronic device for energy-saving and environment-protecting regulation and control and safe preservation to a household environment. A user carries out remote personalized set to a principal controller through a mobile phone or a computer; the principal controller carries out behavior identification and environment judgment according to the information of various sensors such as a camera, a microphone, human body induction and air quality, carries out energy-saving and environment-protecting regulation and control for ventilating, closing taps or household appliances, and the like, and gives an alarm immediately by three automatic manners of call, multimedia message and E-mail to different roles; and after receiving the alarm, the user can perform real-time video monitoring or audio communication. The invention also has the self-protecting functions of detecting disconnection of network cables, connection and disconnection of sensors, and disconnection of power supply automatically, as well as a household privacy protecting function, is safe and reliable, and is particularly suitable for building a safe, energy-saving and environment-protecting household environment.

Systems and methods for discharging a high-voltage bus coupled to a discharge circuit are provided. A method comprises obtaining a first voltage level of the high-voltage bus. The method further comprises determining a first discharge time based on the first voltage level and activating the discharge circuit. The method further comprises obtaining a second voltage level of the high-voltage bus after the first discharge time, comparing the first voltage level and the second voltage level, and deactivating the discharge circuit if a difference between the first voltage level and the second voltage level is less than a threshold value.

A missile or other weapons countermeasure system includes a non-directional, modulated laser energy signal designed to protect an object (such as an aircraft, land vehicle, building, or vessel). Once a potential threat has been detected, a laser energy source generates a laser energy signal of sufficient power to provide the necessary coverage. The laser energy is modulated using an oscillator to create the appropriate countermeasure signal. Next, fiber optics or other coupling device distribute the modulated laser energy signal to one or more apertures, preferably wide angle lenses or the like, disposed about the outer surface of the object to be protected. The number and location of the apertures will depend upon the circumstances of the installation as well as the desired coverage.

The invention relates to an abrasion-resisting surfacing flux-cored wire for a coal milling roller, which is composed of high carbon ferro chrome 45-65%, chromium carbide 8-20%, chromium metal 5-15%, flake graphite 3-8%, high carbon ferromanganese 3-6%, 75# ferrosilicon 5-7%, ferroboron 5-15%, aluminum magnesium alloy 2-5% and an agglutinant 2-8%. The diameter of a welding wire is phi 3.2-phi 4.0mm, welding wire metal is a low carbon steel strip, and 49%-53% of cored powder by mass is filled in the formed low carbon steel strip. No protective gas is additionally arranged outside the flux-cored wire, and the manufacturability is good in the self protection open arc welding. During the welding, the arc is stable, the spatter lose rate is low, molten slag is little, the welding can be continuously performed, the welding joint is attractive in forming, the self-protection effect is good, and no air holes is on the surface of the flux-cored wire. The hardness of the abrasion-resisting surfacing flux-cored wire for the coal milling roller reaches above 62 HRC after multilayer surfacing by metal piling, the evenness of the whole hardness is + / -2HRC, and the performance resistant to abrasion of low-stress grinding materials is good.

Described are a self-protecting storage device and method that can be used to monitor attempts to access protected information. Access is allowed for authorized host systems and devices while unauthorized access is prevented. Authorization use includes inserting a watermark into access commands, such as I / O requests, sent to the storage device. The access commands are verified before access is permitted. In one embodiment, block addresses in I / O requests are encrypted at the host device and decrypted at the self-protecting storage device. Decrypted block addresses are compared to an expected referencing pattern. If a sufficient match is determined, access to the stored information is provided. Self-protection can be provided to a range of storage devices including, for example, SD flash memory, USB thumb drives, computer hard drives and network storage devices. A variety of host devices can be used with the self-protecting storage devices, such as cell phones and digital cameras.

A vertical semiconductor power device includes a top surface and a bottom surface of a semiconductor substrate constituting a vertical current path for conducting a current there through. The semiconductor power device further includes an over current protection layer composed of a material having a resistance with a positive temperature coefficient (PTC) and the over current protection layer constituting as a part of the vertical current path connected to a source electrode and providing a feedback voltage a gate electrode of the vertical semiconductor power device for limiting a current passing there through for protecting the semiconductor power device at any voltage.

A time-synchronized trip implementation for a motor circuit protector (MCP) having a reconfigurable microcontroller. The microcontroller causes a power supply to, be charged for an initial time period during a charging mode. An onboard comparator is configured for a predetermined self-protection level of the MCP, and fault currents that exceed the comparator's threshold will directly drive a solenoid to trip the MCP. The microcontroller reconfigures the comparator's threshold to both measure and charge the power supply toward a stored energy trip voltage, which will charge quickly when high fault currents are present. As a result, self-protection is not compromised. After the trip voltage is reached, the microcontroller reconfigures the onboard comparator's threshold for self-protection trip levels. When a trip event occurs in this mode, stored energy trip activation occurs. The MCP includes user-selectable trip settings, and the microcontroller reconfigures the comparator threshold levels for user-selectable self-protection levels.

The invention discloses a fault-tolerance-capability-equipped MMC sub-module structure capable of realizing DC fault self-protection. Current stress balance of two capacitors and eight power switch tubes in a sub-module are adjusted through redundant switch states; three level can be output at a normal mode, and the level integration of the sub-module is improved; under the condition of a locking mode, the capacitors of the sub-module are completely invested into legs, the capacitors of the sub-module are charged, a reverse electromotive force is generated, and a function of isolating DC-side faults is realized. According to the invention, when the sub-module structure is applied to an MMC-HVDC system, self-protection of the DC-side faults can be realized. Due to the symmetry of the structure, the output characteristics of sub-module structure, under the condition of the locking mode, are symmetrical about a current direction, and good symmetry helps to maintain the current stress balance of the power devices and the capacitors in the sub-module; and when the MMC sub-module structure is applied to an HCMC-HVDC system, the MMC sub-module structure is lower in conduction loss than a full-bridge sub-module structure and higher in system operation efficiency.

The invention relates to a DC solid-state power controller, which is suitable for power distribution networks with different power levels. The DC solid-state power controller consists of a signal processing unit based on and taking a full-custom special integrated-circuit chip as the core, a power supply isolation unit, a signal isolation unit, a power MOSFET (Metal-Oxide-Semiconductor Field Effect Transistor) and a resistor connected in series with a bus. The DC solid-state power controller receives a driving switching signal to achieve on / off of the MOSFET connected in series to the bus, can serve the functions of bus load detection, current-limiting protection, overcurrent protection, short-circuit protection and self protection, and can achieve a plurality of protection parameters through change of a hardware circuit. All functions of the solid-state power controller are served by the internal hardware circuit, and the MOSFET driving signals and the protection signals are all generated by a full-custom integrated circuit. Therefore, the DC solid-state power controller has the characteristics of strong anti-interference performance, short reaction time, simple structural design, high reliability, low power consumption, compactness and the like.

The invention relates to the field of communication, in particular to a method for generating an APK file and a terminal. According to the embodiment, the method includes the steps that an executable file supported by an Android virtual machine is received; the verification value of the executable file is calculated according to a preset verification rule; the verification value of the executable file and the preset verification rule are compiled to generate a first file which can be called by the executable file; the executable file and the first file are packed to form the APK file. According to the embodiment, due to the fact that the calculated verification value of the executable file and the preset verification rule are compiled to generate the first file and due to the mutually dependent relation between the executable file and the first file, the first file in the APK file which is finally packed can only be used by the executable file generated in the APK file packing process of the time, the safety of the APK file is improved, the self-protection capability of the java code of the APK file is improved, and the problem that a java code is tampered due to decompiling is effectively solved.

This power and safety control hub for overall power control, safety control and power distribution integrates fault tolerant power disconnect control, software monitoring of disconnect and multi-voltage power distribution and disconnect with non-hazardous power control, EMI filtering and multi-circuit current protection in a single unit. In addition, it implements electromagnetic, single fault tolerant, safety control circuits without using positively driven contact relays. It coordinates the shutdown of any connected mechanical drives such as servo motor drives, stepper motor drives and variable speed drives autonomously commanding them to come to a controlled stop before safety power is disconnected (when networked controls are used). It also integrates segmented hazardous power control (load / unload and main machine / equipment areas) so that the main area can be operating while the load / unload area has power disconnected. Further, it automatically discharges energy sources within connected mechanical drives at the time of safety power disconnect of hazardous power. It also utilizes a safety control and monitoring algorithm that automatically forces the test on e-stop switches and interlocks in a machine each time the machine is powered up or reset. In addition, it has a state driven safety control and monitoring algorithm that pinpoints wiring and device problems for rapid debug. It includes internal self-protection that automatically forces a control safety power disconnect (after warning the host) if the unit should approach its maximum operating temperature, or if a cooling fan stops. Further, it incorporates safety monitoring software for the synchronous de-bouncing of the interlock and e-stop switch inputs (as a vector) to eliminate false trips. It also integrates a comprehensive audible overcurrent trip indicator as well as individual visual overcurrent indicators in the power distribution system and an e-stop reset function into the machine on-off front panel switch. Finally, our power and safety control hub for overall power control, safety control and power distribution includes a “soft-off” circuit that automatically shuts off the machine when the power supply voltage to a host computer is shut down.

The invention discloses a vehicular display screen elevating device. The elevating device comprises: a display screen rack which is used for assembling the display screen and is provided with a thread structure; a screw which has one end assembled in a bearing on a base support and meshes with the thread structure on the display screen rack; a gear drive pair which is used for connecting a motor output shaft and the screw; a guide bar holding frame which has one end connected with the base support and is provided with a lower guide bar; an upper guide bar which is arranged on the display screen rack; and a stopper which is provided with a lower guide hole and an upper guide hole respectively matching with the lower guide bar and the upper guide bar, and is also provided with a stopping part for limiting the elevating position of the display screen rack in cooperation with a lower guide bar fixing lug on the guide bar holding frame. The vehicular display screen elevating device of the invention which has anti-clamping and self protective functions can be fixed inside a switch board; the casing face of the display screen matches perfectly with the whole vehicular switch board face, thereby reducing the possibility of damage caused by long-time exposure of the display screen.

The invention discloses a vehicle emergency acceleration self-protection system which comprises a forward and backward environment sensing module, an information fusion module, a decision making and control module and an execution module. By the adoption of the system, the intelligence of a vehicle is improved, the forward and backward environment sensing module can obtain environment informationaround the vehicle, in combination with prediction of the current and future operation attitudes of the own vehicle, sensing of the current and future environment information around the vehicle is completed, the rear vehicle rear-end collision preventing early warning accuracy is effectively improved, the reliability of vehicle self-protection decision making and decision control is improved, traffic accidents are avoided or the occurrence rate of the traffic accidents is reduced, the personal safety and property safety of a driver are guaranteed, and meanwhile, an AEA system is an important supplement to an AEB system in the rear-end collision accident prevention process and is a novel active safety system.