Abstract: The present disclosure discloses an optical module including a circuit board; a housing assembly including a light-receiving portion and a light-emitting cavity separated via a separation board and stacked one above the other, one side of the housing assembly adjacent to the circuit board being provided with a first notch through which one end of the circuit board is inserted into the housing assembly; a light-receiving assembly disposed in the light-receiving portion and electrically connected to an upper surface of the circuit board; and a light-emitting assembly disposed in the light-emitting cavity and electrically connected to a lower surface of the circuit board; a concave region is formed in the light-emitting cavity, and a laser assembly of the light-emitting assembly is arranged therein to lift the laser assembly to reduce height difference between wire bonding surface of the laser assembly and lower surface of the circuit board.

Abstract: Embodiments of the present disclosure relate to a method and apparatus for processing scanning data, a device, and a medium. The method includes: obtaining a plurality of frames of images to be processed including auxiliary feature points, where the auxiliary feature points have corresponding distribution true values; performing processing based on the plurality of frames of images to be processed to obtain all three-dimensional coordinate points in a same coordinate system in conjunction with a current camera pose; performing measurement processing on all the three-dimensional coordinate points to obtain target three-dimensional coordinate points; and determining a target position transformation relationship based on the target three-dimensional coordinate points and the distribution true values.

Abstract: The system includes a wireless network that combines the functionality of the sensors with the formation and maintenance of the network, while balancing the network with the minimization of the energy consumed by the entire system. The system may include nodes, gateways, coordinators, extension sensors and boosters. The system may perform a method comprising applying a known load to a battery in a first node; measuring a voltage drop in the battery; determining an internal resistance of the battery; estimating a remaining life in the battery based on the internal resistance; and in response to the remaining life being below a remaining life threshold, re-directing, by a first gateway, signals in a mesh network away from the first node and to one or more of a plurality of nodes interfacing with the first node, wherein the first gateway interfaces with the first node and a network.

Abstract: Methods, apparatuses and systems for a sensing deformation in a surface are disclosed herein. An example device may include a first sensor configured to mechanically couple to a first point and a second point on a surface. The first point and the second point may be located across an opening of a groove on the surface. An electrical property of the first sensor may be configured to change in response to a variation in the distance between the first point and the second point.

Abstract: A method for conveying and dropping seedlings based on a device for conveying and positioning a seedling tray of an automatic transplanter, wherein the device for conveying and positioning the seedling tray of the automatic transplanter includes a platform for conveying the seedling tray, a first sensor, a second sensor, a plurality of push rods, and a control system. The platform is configured for conveying the seedling tray to be below seedling picking claws. The push rods are evenly distributed on the platform. The seedling tray is placed between adjacent two of the push rods. The first sensor is mounted close to the seedling picking claws and configured for identifying the seedling tray. The second sensor is mounted on a rack of the platform for conveying the seedling tray and configured for identifying the push rods. The control system controls the platform for conveying the seedling tray.

Abstract: A method for conveying and dropping seedlings based on a device for conveying and positioning a seedling tray of an automatic transplanter is provided. The device for conveying and positioning the seedling tray of the automatic transplanter includes a platform for conveying the seedling tray, a first sensor, a second sensor, a plurality of push rods, and a control system. The platform is configured for conveying the seedling tray to be below seedling picking claws. The push rods are evenly distributed on the platform. The seedling tray is placed between adjacent two of the push rods. The first sensor is mounted close to the seedling picking claws and configured for identifying the seedling tray. The second sensor is mounted on a rack of the platform for conveying the seedling tray and configured for identifying the push rods. The control system controls the platform for conveying the seedling tray.

Abstract: Methods and systems for detecting and limiting the water in a photoionization detector are provided. The method may include powering off a lamp configured to ionize particles of air. The method may also include monitoring a signal from the photoionization detector. The signal may be monitored based on a current between a signal electrode and a bias electrode. In an instance the signal is above a signal threshold, the method may also include electrolyzing one or more particles of water present in the photoionization detector by closing a leakage switch in order to allow current to flow through the bias electrode and the signal electrode. In an instance the signal is below the signal threshold, the method may include powering on the lamp to begin photoionization detection. Corresponding systems are also provided.

Abstract: The application discloses a debugging method for a noise elimination algorithm, an apparatus and an electronic device, which relate to the technical fields of voice, automatic driving and intelligent transportation. An implementation scheme is: when the noise elimination algorithm is debugged, acquiring multiple voice control signals from a vehicle to be debugged, modifying a weight of a configuration parameter of the noise elimination algorithm in a digital signal processing to obtain an updated noise elimination algorithm; then adopting the updated noise elimination algorithm to perform noise elimination processing on the multiple voice control signals; if control results of noise-eliminated voice control signals on the vehicle to be debugged do not meet a preset condition, continuing to modify the weight of the configuration parameter until the preset condition is met, and then sending a noise elimination algorithm that meets the preset condition to the vehicle to be debugged.

Abstract: Methods and systems for detecting and limiting the water in a photoionization detector are provided. The method may include powering off a lamp configured to ionize particles of air. The method may also include monitoring a signal from the photoionization detector. The signal may be monitored based on a current between a signal electrode and a bias electrode. In an instance the signal is above a signal threshold, the method may also include electrolyzing one or more particles of water present in the photoionization detector by closing a leakage switch in order to allow current to flow through the bias electrode and the signal electrode. In an instance the signal is below the signal threshold, the method may include powering on the lamp to begin photoionization detection. Corresponding systems are also provided.

Abstract: An ultraviolet device for potato peel ripening includes a left protection plate and a right protection plate, wherein a first-stage potato-soil separation device and a second-stage potato-soil separation device are sequentially arranged between the left protection plate and the right protection plate, a triangular ventilation pipeline is arranged above the first-stage potato-soil separation device and the second-stage potato-soil separation device, front air outlets are formed in the surface, corresponding to the first-stage potato-soil separation device, of the triangular ventilation pipeline, lower air outlets are formed in the surface, corresponding to the second-stage potato-soil separation device, of the triangular ventilation pipeline, the triangular ventilation pipeline communicates with a centrifugal fan, the left protection plate and the right protection plate are provided with a plurality of plant ultraviolet light supplementing lamps used for irradiating the first-stage potato-soil separation devic

Abstract: The application discloses a bus bar, a battery cell acquisition assembly and a battery module. The bus bar is arranged to electrically connect a plurality of battery cells to form a battery cell group, and comprises a plurality of bus bar main bodies and at least one substrate. Each bus main body includes a positive conductive part and a negative conductive part, the connection part is electrically connected with the positive electrode of one battery cell, the negative connection part is electrically connected with the negative electrode of another battery cell, the positive conductive part and the negative conductive part are electrically connected through the connection part, and the surface of the connection part is provided with an insulating layer. Two adjacent bus bar main bodies are electrically connected through a substrate, and the surface of each substrate is provided with an insulating layer.

Abstract: The application discloses a cooling plate assembly, a liquid cooling module and a battery pack, which include a connector and two groups of cooling pipe assemblies, each group of cooling flow channels includes a first flow channel and a second flow channel penetrating along a first direction and the connector is provided with a third flow channel and a fourth flow channel penetrating along a second direction, wherein the first flow channel is communicated with the third flow channel, and the second flow channel is communicated with the fourth flow channel; the two groups of cooling pipe assemblies are respectively communicated with the first flow channel and the second flow channel on the same side of the connector; between the third flow channel and the fourth flow channel, one is set as liquid inlet and the other is set as liquid outlet.

Abstract: The present invention relates to a disinfection device of door handle being rotational and transpositional, the composition is as follows: a plurality of door handles are provided, which are respectively in the states of “to be used”, “in disinfection”, “in disinfection post-treatment” and/or “in ready”; and the door handle transposition shaft is driven by the rotary driving device of door handle transposition shaft to rotate counterclockwise, thus to complete synchronous rotation of the door handles and realize transposition operation. The use, disinfection and disinfection post-treatment of the door handles of the present invention are carried out synchronously, which can meet the requirements of immediate use of the door handles and safety to the users; the transposition of the door handles is implemented by the pure mechanical driving device; the door handles automatically rotates for transposition after a door opening and closing, therefore “disinfection after each use” is realized.

Abstract: A heat-resistant H1N1 subtype influenza virus mutant strain rPR8-HA-N5 has been preserved at China Center for Type Culture Collection, Wuhan University, Wuhan, China with the preservation number of CCTCC No. V202043.

Abstract: The present application discloses a liquid seal method for on-off of gas pipeline and a device thereof, wherein a liquid-sealed U-shaped container being provided in the gas pipeline that requires to perform on-off control; a lifting mechanism using a leading screw controls the slider having a certain volume to immerse in or leave the liquid so as to raise or lower the liquid level. The U-shaped container has a structure with a wide top and a narrow bottom, the space of the U-shaped container is divided into two spaces with different sizes by a separating plate, and a liftable liquid-occupying device is located at the space having a larger volume; the upper and lower parts of the slider are tapered; and the driving device can be motor or hand wheel.

Abstract: Methods, apparatuses, and systems for providing an alternating current (AC) voltage supply for a photoionization detector lamp from a direct current (DC) voltage source are provided. An example apparatus may include a DC voltage to DC voltage (DC/DC) converter circuitry, and a feedback circuitry that is electronically coupled to the DC/DC converter circuitry and converts a reference AC voltage to a feedback DC voltage for the DC/DC converter circuitry. In some examples, the feedback circuitry may be electronically coupled to a DC voltage to AC voltage (DC/AC) converting circuitry to obtain the reference AC voltage.

Abstract: An ultraviolet device for potato peel ripening includes a left protection plate and a right protection plate, wherein a first-stage potato-soil separation device and a second-stage potato-soil separation device are sequentially arranged between the left protection plate and the right protection plate, a triangular ventilation pipeline is arranged above the first-stage potato-soil separation device and the second-stage potato-soil separation device, front air outlets are formed in the surface, corresponding to the first-stage potato-soil separation device, of the triangular ventilation pipeline, lower air outlets are formed in the surface, corresponding to the second-stage potato-soil separation device, of the triangular ventilation pipeline, the triangular ventilation pipeline communicates with a centrifugal fan, the left protection plate and the right protection plate are provided with a plurality of plant ultraviolet light supplementing lamps used for irradiating the first-stage potato-soil separation devic

Abstract: Disclosed are a vending machine and an item dispensing method of storage column thereof. In the item dispensing method of the storage column of the vending machine, controlling the first motor to start rotating for the first time to convey the target item to the inlet of the bucket; when detecting that the target item reaches the inlet of the bucket, controlling the first motor to stop rotating for the first time to make the target item enter the inside of the bucket under the driving of the second motor.

Abstract: Provided is a vending machine. The vending machine includes a control device, a cabinet, an item column, and a hopper. The hopper is located between the item column and a pickup port of the cabinet. The hopper includes a receiving bin provided with an opening. The vending machine further includes a detection device. The control device is configured to control the receiving bin to receive the item from the item column at a receiving position based on a purchase instruction from a user, and control the receiving bin to rotate from the receiving position to a first position located between the receiving position and the dispensing position based on the detection result that the item exists at the inlet of the hopper.