Abstract: The methods and systems for panorama stitching of trailer images provided by the present invention relates to the field of image processing, comprising: receiving, by a first on-board device, a first image data sent by a camera disposed on the left of the carriage, a second image data sent by a camera disposed on the right of the carriage, and a third image data sent by a camera disposed at the back of the carriage in real time; respectively analyzing the first image data, the second image data and the third image data utilizing an opencv algorithm, to obtain intrinsic parameters, extrinsic parameters and distortion parameters of the cameras; respectively acquiring feature points of the seventh image data, the eighth image data and the ninth image data utilizing a scale invariant algorithm to obtain a set of feature points; and stitching the first image data, the second image data and the third image data according to the set of the feature points to generate a first stitched image; utilizing an H.

Abstract: Disclosed are materials, devices, methods and systems for the detection of target molecules in test samples using microrobots. The target molecules may be bacterial toxins. The microrobots may include biohybrid materials such as porous spore core, a middle layer coated on the spore core for the actuation and steering in a fluid and further conjugation with a functional probe, and a sensing probe anchored onto middle layer for attaching to the targeted molecules in a fluid to respond to fluorescent tracking. A system for detecting bacterial toxin, is disclosed and comprises an intelligent motion control system based on automated fluorescent recognition and detection methods, which can propel and guide the microrobots to realize the automated motion in a pre-designed path and perform the real-time monitoring when integrating with an inverted fluorescent microscope or a fluorescent emission multi-reader.

Abstract: A GPS/Beidou onboard antenna with a dual output port low noise amplifier includes an antenna, an amplifier chip, a power divider, a first radio frequency switch, a second radio frequency switch, a first direct-current bias, a second direct-current bias, a first port, a second port, and a voltage selection circuit. The antenna transmits a received radio frequency signal amplified by the amplified chip to the power divider connected to the amplified chip; the radio frequency signal is divided by the power divider, in one of which the radio frequency signal goes through the first radio frequency switch, the first direct-current bias and the first port so as to be output to a receiver connected, and in the other of which the radio frequency signal goes through the second radio frequency switch, the second direct-current bias and the second port so as to be output to another receiver connected.

Abstract: A GPS/Beidou onboard antenna with a dual output port low noise amplifier includes an antenna, an amplifier chip, a power divider, a first radio frequency switch, a second radio frequency switch, a first direct-current bias, a second direct-current bias, a first port, a second port, and a voltage selection circuit. The antenna transmits a received radio frequency signal amplified by the amplified chip to the power divider connected to the amplified chip; the radio frequency signal is divided by the power divider, in one of which the radio frequency signal goes through the first radio frequency switch, the first direct-current bias and the first port so as to be output to a receiver connected, and in the other of which the radio frequency signal goes through the second radio frequency switch, the second direct-current bias and the second port so as to be output to another receiver connected.

Abstract: A quickly-sealing cover having a cover body matched with a cup body or bottle body, in which the lower end of cover body is partially embedded. The outer wall at the lower end is equipped with an inward-retracted bevel edge, forming a wedge-shaped opening surrounding the lower end. Below the cover body a push pedal is flexibly installed on which a sealing ring is equipped. The upper edge of the sealing ring is opposite the wedge-shaped opening. The upper edge of the sealing ring is embedded into the wedge-shaped opening when the push pedal moves upward. This achieves a perfect sealing effect between cover body and cup body or bottle body. The cover is firmly attached to the mouth edge of cup body or bottle body due to static friction force increased, without screw connection, thus the mouth edge may be in any form in addition to circle.

Abstract: A quickly-sealing cover having a cover body matched with a cup body or bottle body, in which the lower end of cover body is partially embedded. The outer wall at the lower end is equipped with an inward-retracted bevel edge, forming a wedge-shaped opening surrounding the lower end. Below the cover body a push pedal is flexibly installed on which a sealing ring is equipped. The upper edge of the sealing ring is opposite the wedge-shaped opening. The upper edge of the sealing ring is embedded into the wedge-shaped opening when the push pedal moves upward. This achieves a perfect sealing effect between cover body and cup body or bottle body. The cover is firmly attached to the mouth edge of cup body or bottle body due to static friction force increased, without screw connection, thus the mouth edge may be in any form in addition to circle.