Abstract: The invention provides a low-power wide area network integrated sensing and communication method based on channel sensing and reinforcement learning, and the method comprises the steps: receiving an uplink signal transmitted by a terminal node through a gateway receiver, demodulating the uplink signal through employing a soft demodulation algorithm, and obtaining a bit log-likelihood ratio; the deep reinforcement learning model completes channel reconstruction of the corresponding link during communication according to the bit log-likelihood ratio; and calculating the current optimal network configuration according to the reconstructed channel so as to distribute the current optimal network configuration to each terminal node during next downlink transmission.

Abstract: The invention provides a low-power wide area network integrated sensing and communication method based on channel sensing and reinforcement learning, and the method comprises the steps: receiving an uplink signal transmitted by a terminal node through a gateway receiver, demodulating the uplink signal through employing a soft demodulation algorithm, and obtaining a bit log-likelihood ratio; the deep reinforcement learning model completes channel reconstruction of the corresponding link during communication according to the bit log-likelihood ratio; and calculating the current optimal network configuration according to the reconstructed channel so as to distribute the current optimal network configuration to each terminal node during next downlink transmission.

Abstract: An auxiliary sensing method and system based on sensory substitution includes: establishing a discrete horizontal plane included angle and a normal vector included angle in three-dimensional space as well as response functions corresponding to different discrete distances, and establishing an acoustic coding library of an object; obtaining a surrounding environmental video; obtaining object information and category of current environment; establishing a three-dimensional sound field of the object according to the image information, the object information and the three-dimensional coordinate information obtained in combination with the acoustic coding library of the object; and adjusting, for objects of different categories, the three-dimensional sound field of each object according to movement information and variations of images, and playing the three-dimensional sound field of each object in real time.

Abstract: A telescopic baton is provided. The telescopic baton comprises a plurality of tubes sequentially arranged in an embedded manner, wherein a tube on an inner side of two adjacent tubes in the plurality of tubes is capable of extending and withdrawing along an axis direction of a tube on an outer side of the two adjacent tubes, a locking groove is formed in an inner wall of a first end of the tube on the outer side; a blade cam locking assembly, which comprises a socket sleeve, a plurality of blade cam blocks, a torsional spring and a fixing mechanism, wherein both extended ends of the torsional spring are respectively abutted against the socket sleeve and the blade cam block; an unlocking structure, which is mounted inside a tube on an outermost side of the plurality of tubes, and is used for unlocking the blade cam locking assembly.

Abstract: Some embodiments of the disclosure provide an expandable baton, which includes a plurality of sleeves, a positioning ring, a plurality of locking pieces and an unlocking rod, wherein the plurality of sleeves are retractably disposed in sequence in a nesting manner; the positioning ring is provided with an avoiding hole; the plurality of locking pieces are disposed at intervals around a peripheral side of the positioning ring and enclose an avoiding space, first axial ends of the plurality of locking pieces extend into the sleeve positioned on an inner side, and second axial ends of the plurality of locking pieces extend out of the sleeve positioned on the inner side and are stuck in a sleeve, positioned on an outer side, of the two adjacent sleeves to lock two adjacent sleeves in an extending state.

Abstract: A telescopic baton is provided. The telescopic baton comprises a plurality of tubes sequentially arranged in an embedded manner, wherein a tube on an inner side of two adjacent tubes in the plurality of tubes is capable of extending and withdrawing along an axis direction of a tube on an outer side of the two adjacent tubes, a locking groove is formed in an inner wall of a first end of the tube on the outer side; a blade cam locking assembly, which comprises a socket sleeve, a plurality of blade cam blocks, a torsional spring and a fixing mechanism, wherein both extended ends of the torsional spring are respectively abutted against the socket sleeve and the blade cam block; an unlocking structure, which is mounted inside a tube on an outermost side of the plurality of tubes, and is used for unlocking the blade cam locking assembly.

Abstract: Some embodiments of the disclosure provide an expandable baton, which includes a plurality of sleeves, a positioning ring, a plurality of locking pieces and an unlocking rod, wherein the plurality of sleeves are retractably disposed in sequence in a nesting manner; the positioning ring is provided with an avoiding hole; the plurality of locking pieces are disposed at intervals around a peripheral side of the positioning ring and enclose an avoiding space, first axial ends of the plurality of locking pieces extend into the sleeve positioned on an inner side, and second axial ends of the plurality of locking pieces extend out of the sleeve positioned on the inner side and are stuck in a sleeve, positioned on an outer side, of the two adjacent sleeves to lock two adjacent sleeves in an extending state.

Abstract: An auxiliary sensing method and system based on sensory substitution includes: establishing a discrete horizontal plane included angle and a normal vector included angle in three-dimensional space as well as response functions corresponding to different discrete distances, and establishing an acoustic coding library of an object; obtaining a surrounding environmental video; obtaining object information and category of current environment; establishing a three-dimensional sound field of the object according to the image information, the object information and the three-dimensional coordinate information obtained in combination with the acoustic coding library of the object; and adjusting, for objects of different categories, the three-dimensional sound field of each object according to movement information and variations of images, and playing the three-dimensional sound field of each object in real time.

Abstract: The invention discloses a hidden pin type high-power LED support, which comprises conductive pins and a base for packing the conductive pins, wherein a cavity is formed on the top of the base; a heat sink is fixedly arranged at the bottom of the cavity; the conductive pins pass through the bottom surface of the base; and the bottom surfaces of the conductive pins are parallel and level to the bottom surfaces of the base and the heat sink. The high-power LED support provided by the invention realizes the subsequent automated production of LEDs through a vibration plate smoothly by successfully hiding the conductive pins extended to both sides of an imitated Lumen lamp bead in the prior art in a frame of the base. Moreover, the invention also discloses high-power LED packaging structure and technology using same.