13 results about "'Active' protection" patented technology

This invention discloses a vehicle-mounted mobile drone swarm charging power supply protection system, belonging to the field of drone charging technology. Addressing the problems of existing vehicle-mounted charging systems, such as single protection mechanisms, poor adaptability to vehicle scenarios, and lagging protection, the system includes a vehicle-mounted support unit, an energy storage power supply unit, a drone swarm charging interface unit, a multi-channel hierarchical power adjustment unit, a multi-dimensional status sensing unit, a core protection control unit, a vehicle environment adaptation protection unit, and a wireless interaction unit. This invention constructs a two-level hierarchical collaborative protection architecture of total power and individual channels, combined with a dynamic power allocation algorithm to achieve overload and overcurrent protection for swarm charging. It designs a contact fault prediction algorithm based on dynamic impedance matching and vibration characteristic correlation, adapting to active protection in vehicle bumpy scenarios. Simultaneously, it achieves linkage protection between the vehicle main power supply and the charging power supply, as well as environmental adaptive threshold correction.

The application relates to the technical field of power utilization protection, and provides a power utilization equipment active protection system, a power utilization equipment active protection method and device, which comprise a current sensor, a voltage comparator and a relay; the input end of the current sensor is connected with the power utilization equipment, is used for collecting the running current of the power utilization equipment, converting the running current into a running voltage, and inputting the running voltage into the voltage comparator; the voltage comparator comprises a first input end, a second input end and an output end; the first input end is connected with the output end of the current sensor and is used for receiving the running voltage; the second input end is used for receiving a reference voltage; the output end is used for outputting a voltage comparison result obtained by comparing the running voltage with the reference voltage; the relay is connected with the output end of the voltage comparator, is used for receiving the voltage comparison result, and controls the on-off of a connecting circuit between a power supply module and the power utilization equipment based on the voltage comparison result. The active monitoring and timely cut-off protection of the abnormal state of the power utilization equipment are realized.

The utility model discloses a kind of gas leakage detection devices of being convenient for carrying, including detector body, connecting pipe, install the top of detector body, detection probe, install one end of connecting pipe;For achieving the protection mechanism that storage protection is carried out to detection probe, and protection mechanism is arranged at the side of detector body, the utility model is set through the setting of protection mechanism, the active protection of detection probe is realized, when device is in carrying or idle state, protection mechanism can store detection probe in protection structure, effectively avoid detection probe and external object from colliding by physical isolation, to protect its internal precision component from mechanical damage, the setting of protection mechanism is in keeping the portability of device, also significantly improve the durability of detection probe, ensure that detection probe can long-term maintain high detection accuracy and sensitivity, avoid performance attenuation or function failure caused by collision, so as to can prolong its service life.

This invention discloses a multi-layered, proactive protection method and system for security platforms. It generates a traffic tag set by analyzing the source anchor points of multi-level traffic scrubbing data, decomposes the attack chain, filters and identifies interruption nodes to determine attack propagation paths, and extracts features of protection blind spots to generate a threat threshold matrix. It quantifies the temporal coordination strength and periodic superposition effect between attack signals, identifies superimposed threat combinations, dynamically adjusts the threat threshold matrix, and generates supplementary protection parameters. Through auditing and source tracing analysis, it tracks the triggering trend and reverse propagation path of protection responses, locates silent abrupt change anomalies, and extracts a multi-dimensional protection feature set. Finally, it performs nonlinear fusion of the threat threshold matrix and supplementary protection parameters, combines forged response attenuation assessment to determine dynamic response weights, and drives the tiered output of the protection-in-depth response list, providing complete methodological support for precise proactive protection in multi-level collaborative attack scenarios.

The invention provides an active protection method and device for impulse noise and a protection earmuff, and the method comprises the steps: collecting a first external sound pressure at a current moment through the protection earmuff under the condition that the protection earmuff employs a transparent mode to carry out the enhanced playback of external sound, and predicting a target sound pressure at a target moment based on the first external sound pressure; wherein the target moment is behind the current moment, and the interval duration between the target moment and the current moment is determined based on the activation starting time of the noise reduction mode; if it is determined that pulse noise exists at the target moment based on the target sound pressure, the transparent mode is switched into a noise reduction mode, and the mode switching time is activation starting time; and controlling the protective earmuffs to offset the external sound in a noise reduction mode. According to the technical scheme of the invention, active protection can be carried out in advance, and mode switching can be completed in advance, so that a high-real-time protection effect can be achieved.

The application discloses a high-power charging pile thermal runaway monitoring method and a protection system thereof, relates to the technical field of high-power energy supplementing infrastructure for new energy vehicles and extreme thermal physical safety control, and aims to solve the technical defects of lagging thermal runaway monitoring and passive protection of the existing high-power charging pile. The monitoring method discloses the single dependence on the terminal temperature lagging representation, constructs an early microcosmic evolution detection system of multi-physical field coupling, realizes early and accurate identification of thermal runaway precursors through the synergistic detection of three dimensions of electrical frequency domain micro stress detection, cooling medium micro boiling acoustic detection and interface escaping gas concentration feedforward detection, and combines multi-dimensional state fusion threshold determination. The protection system corresponds to the above monitoring method, is composed of a hybrid type ultra-fast breaking module, an active phase change flooding fire extinguishing module, a gun end forced separation module and a comprehensive decision-making master control hub, and realizes graded active protection in different stages of thermal runaway.

This invention discloses a protective device for the feed inlet of a transfer conveyor, relating to the field of coal mining equipment technology. It includes a protective chain comprising a horizontal chain and a vertical chain. The horizontal chain connects the transfer conveyor and the head of the feed inlet conveyor. The upper end of the vertical chain is fixedly connected to the upper sealing plate of the feed inlet of the transfer conveyor, and the lower end hangs down. An emergency stop device includes a hanging chain and an emergency stop switch. The hanging chain hangs over the feed inlet of the transfer conveyor, and pulling down the hanging chain activates the emergency stop switch. An active protection device includes a sensor capable of detecting personnel entering a preset danger zone and issuing a detection signal. The detection signal is used to control an alarm device to issue an alarm and / or to control the transfer conveyor to stop. The protective chain, emergency stop device, and active protection device form multiple safety redundancies of active early warning, physical protection, and accident self-rescue, significantly reducing the risk of personnel injury or death due to the failure of a single protection method and improving personnel safety during operation.

The application discloses an air-based intercepting aircraft with a seeker installed at the rear of the flight direction, comprising four cabin sections of a leading-war cabin, a control cabin, a rudder cabin and a guiding cabin; the seeker, a guidance controller, a navigation device, a thermal battery, a rudder, a combat unit and a proximity fuze are installed in the cabin sections; the leading-war cabin, the control cabin, the rudder cabin and the guiding cabin are sequentially connected to form the cabin body structure of the air-based intercepting aircraft; the combat unit and the proximity fuze are installed in the leading-war cabin and are independent cabins; the guidance controller, the navigation device and the thermal battery are installed in the control cabin; the rudder is installed in the rudder cabin and is an independent cabin; and the seeker is installed in the guiding cabin and is an independent cabin. The air-based intercepting aircraft has the active killing capacity, can be used for intercepting the rear attacking target of an airplane, realizes the active protection of the airplane platform and effectively protects the airplane.

The application provides a soft rock tunnel secondary lining closed loop evaluation device, method, equipment and medium, belonging to the field of tunnel intelligent maintenance technology. Through the construction of an intelligent evaluation and decision system integrating environment-mechanics-surface multi-source information perception, deterioration mechanism deep diagnosis and safety risk dynamic early warning, through the establishment of a "perception-diagnosis-early warning-decision" closed loop technical path, the technical problems of insufficient dynamic perception of the whole process of lining structure from material performance degradation to mechanical behavior response, lack of environment-mechanics-surface multi-source information fusion, and difficulty in quantitative evaluation and accurate prediction of safety state in complex environment are effectively solved. The accurate perception and active protection capability of the safety state of the tunnel lining structure in the complex corrosion environment are improved.

The invention relates to a defense system with a distance-active protection system (200) for protecting a military vehicle (100) and a protective device (1) for the military vehicle (100) for protection against repercussions (R) of a distance-active protection system (200) on the vehicle (100), wherein the protective device (1) has a protective shield (2) which can be movably, in particular pivotably, attached to the vehicle (100) by means of a fastening device (3) and which has a viewing window (4) for seeing through the protective shield (2), wherein the protective shield (2) can be moved from a parked position to an operational position and wherein the distance-active protection system (200) is coupled to the protective device (1) in such a way that the distance-active protection system (200) can only be used in the operational position.

The application relates to an overflow dam anti-cavitation device, which comprises a panel laid on the surface of the overflow dam, a plurality of air holes are formed in the panel, a pressure sensor is installed on the surface of the panel and used for monitoring the pressure of the water body near the panel, a pressure increasing module is communicated with the air holes, a control module is signal-connected with the pressure sensor and the pressure increasing module respectively, the pressure increasing module is controlled to start or stop according to the pressure data monitored by the pressure sensor, and the control module controls the pressure increasing module to start when the water body pressure is lower than a preset threshold value, air is injected into the water body through the air holes to increase the local pressure. Compared with the prior art, the application has the advantages of real-time monitoring and active protection, high intelligence and automation, wide adaptability, high reliability, convenient maintenance and the like.