Abstract: A water tank for a sweeper and a sweeper including the same are provided. The water tank for the sweeper includes: a water tank lower cover, a bottom of which is provided with a containing groove; a water tank upper cover, which is connected with the water tank lower cover; a water tank release button arranged at the containing groove; and a reset member, a first end of which is coupled to the water tank release button and a second end is coupled to the water tank lower cover.

Abstract: The present invention discloses a real-time license plate detection and recognition method and device based on color augmentation, the method comprises: step 1: obtaining car images containing license plates as a license plate detection training set, inferring license plate detection results through the trained license plate detection model; step 2: performing view correction transformation on the detected license plates to obtain frontal view images of the license plates; step 3, using the obtained frontal view images of the license plates as a training set for license plate recognition, using a license plate recognition model based on deep neural network for license plate recognition to obtain license plate recognition results; step 4: displaying the license plate detection results and the license plate recognition results on the original test images or outputting them as needed, completing the detection and recognition of the license plates in the images.

Abstract: Provided is a video-based method and system for accurately estimating heart rate and facial blood volume distribution, and the method mainly comprises the following steps: firstly, carrying out face detection of video frame containing human face, and extracting face image sequence and face key position points sequence in time dimension; secondly, compressing these sequence of face image and face key position points to obtain the facial signals in time dimension; thirdly, estimating facial blood volume distribution by facial signals mentioned in third step; finally, estimating heart rate values by using model based on deep learning technology and the spectrum analysis method respectively, then fusing the estimation results by Kalman filter to promote the accuracy of heart rate estimation.

Abstract: An embodiment of the present invention provides a patent monetary value evaluation method. The method includes: obtaining a patent factor of a subject patent; obtaining commercial data of a company holding the patent; obtaining technical market information of a technology related to the patent in an application country; and estimating monetary value of the patent by using a preset calculation model based on the patent factor, the commercial data, and the technical market information, where the calculation model comprises a calculation function and variable coefficients corresponding to the patent factor, the commercial data, and the technical market information, and input variables of the calculation function include a product of the patent factor and the corresponding variable coefficient, a product of the commercial data and the corresponding variable coefficient, and a product of the technical market information and the corresponding variable coefficient.

Abstract: Disclosed is a carriage body for a multiple unit train, comprising: a chassis (10) and a power system module mounted in a suspended manner below the chassis (10), an access opening (11) for facilitating to overhaul the power system module is provided on the chassis (10), a passenger compartment floorboard (12) covers top surface of the chassis (10) and surround the access opening (11), further comprising an access door (2) for blocking the access opening (11), which comprises a top panel (21), a reinforcement panel (22), and a sound-insulation panel (23) for sound-proofing, which are provided successively from top to bottom, and are fixedly connected as one piece; the periphery of the top panel (21) engages with the passenger compartment floorboard (12); the top panel (21) is detachably yet fixedly connected onto the floorboard (12) of the passenger compartment and/or the chassis (10).

Abstract: Disclosed is a carriage body for a multiple unit train, comprising: a chassis (10) and a power system module mounted in a suspended manner below the chassis (10), an access opening (11) for facilitating to overhaul the power system module is provided on the chassis (10), a passenger compartment floorboard (12) covers top surface of the chassis (10) and surround the access opening (11), further comprising an access door (2) for blocking the access opening (11), which comprises a top panel (21), a reinforcement panel (22), and a sound-insulation panel (23) for sound-proofing, which are provided successively from top to bottom, and are fixedly connected as one piece; the periphery of the top panel (21) engages with the passenger compartment floorboard (12); the top panel (21) is detachably yet fixedly connected onto the floorboard (12) of the passenger compartment and/or the chassis (10).

Abstract: The present invention provides a rescue passage window for a passenger train, comprising an aluminum alloy outer frame, a hollow tempered glass, a movable sash, a fixed sash, a locking device, a rotating device and a sealing device, the aluminum alloy outer frame is a carrier to connect the structures of any other parts, the hollow tempered glass is inlaid on the aluminum alloy outer frame by the sealing device to form the fixed sash and the movable sash, the movable sash is suspended on the cross beam of the aluminum alloy outer frame by the rotating device to realize its connection with the aluminum alloy outer frame, reliable locking between the movable sash and the aluminum alloy outer frame is realized by the locking device, connection and sealing between the movable sash and the aluminum alloy outer frame is realized by the sealing device.

Abstract: The present invention provides a rescue passage window for a passenger train, comprising an aluminum alloy outer frame, a hollow tempered glass, a movable sash, a fixed sash, a locking device, a rotating device and a sealing device, the aluminum alloy outer frame is a carrier to connect the structures of any other parts, the hollow tempered glass is inlaid on the aluminum alloy outer frame by the sealing device to form the fixed sash and the movable sash, the movable sash is suspended on the cross beam of the aluminum alloy outer frame by the rotating device to realize its connection with the aluminum alloy outer frame, reliable locking between the movable sash and the aluminum alloy outer frame is realized by the locking device, connection and sealing between the movable sash and the aluminum alloy outer frame is realized by the sealing device.

Abstract: A pair of glasses for sustained close distance work includes a pair of integrated convex lens and stepped prism based-in. The thickness and weight of the lens will be reduced because it is made of optical resin and the prism is step shaped. The glasses can turn the near object light into the far object light, so that the eyestrain caused by sustained near work will be significantly reduced and the primary postnatal environment factor leading to myopia will be thoroughly eliminated.