5results about How to "Strong autonomy" patented technology

The invention discloses a security optimization method, device and system for terminal chip key initialization, a chip and a storage medium, and belongs to the technical field of embedded system security. The method is applied to an equipment manufacturing end and comprises the steps that a target equipment key is created, and the target equipment key is used for being injected into a chip security area of an equipment end to serve as a core key of the equipment end; obtaining a first key pair, the first key pair being a key pair of an equipment manufacturing end and comprising a first root private key and a first root public key; receiving a target chip root public key, wherein the target chip root public key is a chip root public key sent by a manufacturing end of a chip of the equipment end; constructing a target key encryption key based on the first root private key and the target chip root public key; encrypting the target device key based on the target key encryption key to generate a target ciphertext; and writing the target ciphertext into the device end. According to the invention, the security of key initialization of the terminal chip is improved, and the complexity is reduced at the same time.

This invention provides an autonomous control method for a drone swarm based on VGG16 and virtual game theory. The drones utilize a pre-trained attitude recognition model to identify the historical movement information of their opponents and calculate the opponent's strategy tendency at the previous moment based on this information. Then, the drones select a candidate action from a set of potential actions, calculating the opponent's strategy tendency and probability of choosing that action according to the game theory formula. A reward function is designed, and the drones select their own action based on the obtained opponent's strategy probability using the optimal response decision rule, observing the changes in the opponent's actions until the entire drone swarm reaches a stable state. This enables the analysis and game theory of multiple surrounding drones. When encountering signal interference, this invention allows some drone units to malfunction while the drone itself can adjust its movement attitude, maintaining relative stability for the entire swarm.

The invention relates to an aircraft attitude measurement method based on apparent acceleration coordinate system registration, which is suitable for a sensor limited or external signal interference environment. The method comprises the following steps: firstly, acquiring an apparent acceleration point set of an aircraft under a body coordinate system and an east-north-sky coordinate system, and carrying out centroid calculation and decentration processing to obtain standardized data; obtaining an optimal rotation matrix of the two coordinate systems through covariance matrix construction and singular value decomposition; and finally, the pitch angle, the yaw angle and the rolling angle of the aircraft are solved through the rotation matrix by taking Z-Y-X as a rotation sequence. The method does not depend on an external satellite signal and a high-precision inertial device, avoids the accumulative error of a traditional inertial navigation system and the anti-interference defect of a satellite navigation system, and has the advantages of high measurement precision (the error is less than or equal to + / -1 degree), high stability, wide adaptability and good engineering realizability; the method can be widely applied to attitude measurement of various aircrafts such as unmanned aerial vehicles, satellites and missiles.

The invention discloses a Faster RCNN-based roof tray identification method and system in an underground roadway complex environment, and relates to the field of underground roadway roof target identification, and the method comprises the steps: obtaining a to-be-identified tray image; and inputting the to-be-identified tray image into a pre-trained tray identification model, and outputting an identification result of the to-be-identified tray image. A feature extraction network, an RPN network branch and a detection network branch are used as a network structure of a tray identification model, feature extraction is performed on a tray image through the feature extraction network, and an extracted tray feature map is used as shared input of the RPN network branch and the detection network branch; according to the method, a tray image is acquired, then an RPN network branch is utilized to extract a suggested area as input of a detection network branch, so that an identification result of the tray image is acquired, environmental influences of dark underground light, dust and the like are overcome, the method has the characteristics of high autonomy and high precision, and technical support is provided for implementation of position and posture detection and automatic anchoring protection of tunneling equipment based on machine vision.

This invention discloses a hydrogen production power supply, a renewable energy hydrogen production system, and a hydrogen production power supply control method. The hydrogen production power supply includes a first-stage AC / DC converter and a second-stage DC / DC converter. The input terminal of the first-stage AC / DC converter is connected to the output terminal of a grid-type converter, and the input terminal of the second-stage DC / DC converter is connected to the output terminal of the first-stage AC / DC converter. Its output terminal is connected to the input terminal of an electrolyzer. The hydrogen production power supply is configured to automatically adjust its output power according to the voltage frequency and / or voltage amplitude at the output terminal of the grid-type converter to maintain the stability of the voltage frequency and / or voltage amplitude at the output terminal of the grid-type converter. The hydrogen production power supply of this application can autonomously maintain the stability of the AC bus when the renewable energy power fluctuates, avoiding the shutdown of the hydrogen production system due to power shortage, ensuring the continuity of hydrogen production operations, and extending the service life of the electrolyzer.