Patents
Literature
Hiro is an intelligent assistant for R&D personnel, combined with Patent DNA, to facilitate innovative research.
Hiro

1748 results about "Self protection" patented technology

Battery management system of vehicle-mounted lithium power battery

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.
Owner:沈阳中科正方新能源技术有限公司

Method and apparatus to control output power from a switching power supply

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.
Owner:POWER INTEGRATIONS INC

High-carbon high-chromium high-niobium cast iron self-protecting flux-cored wire

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.
Owner:CENT RES INST OF BUILDING & CONSTR CO LTD MCC GRP

System and method for malicious code analysis based on cloud computing

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.
Owner:706 INST SECOND RES INST OF CHINAAEROSPACE SCI & IND

Structure and method for self protection of power device

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.
Owner:ALPHA & OMEGA SEMICON LTD

Anti-explosion fire reconnaissance firefighting robot and working method

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.
Owner:SHANDONG GUOXING SMARTECH CO LTD +1

Smoke exhaust, fire extinguishment and dismantling robot

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.
Owner:苏州海伦哲专用车辆有限公司

Electronic device for energy-saving and environment-protecting regulation and control and safe preservation to household environment

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.
Owner:SHANGHAI YUQIAN ELECTRONICS TECH

Abrasion-resisting surfacing flux-cored wire for coal milling roller

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.
Owner:LUOYANG SHUANGRUI SPECIAL ALLOY MATERIALS

Method and system for time synchronized trip algorithms for breaker self protection

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.
Owner:SCHNEIDER ELECTRIC USA INC

Fault-tolerance-capability-equipped MMC sub-module structure capable of realizing DC fault self-protection, and MMC modulation method thereof

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.
Owner:ZHEJIANG UNIV

Power and safety control hub

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.
Owner:TEKNIC

Vehicle-carrying display screen lifting gear

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.
Owner:SHENZHEN QICHUANG INVESTMENT

Vehicle emergency acceleration self-protection system and self-protection method thereof

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.
Owner:WUHU BETHEL AUTOMOTIVE SAFETY SYST
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products