Abstract: Association information received from a number of mobile devices is recorded at a server end, where each mobile device is associated with a user that is pre-registered with the server end. An identification request is received at the server end and from a cashier device, where the identification request includes identity information associated with a particular user. One or more payment candidates corresponding to the cashier device are determined by the server end. A particular user account corresponding to the particular user is determined by the server end by comparing the identity information from the identification request with identity information associated with each of the payment candidates. The particular user account is returned by the server end to the cashier device for making a payment.

Abstract: The present specification discloses a smart broadcast device, including: a device body, wherein the device body comprises a first surface that comprises a payment graphic code; a transceiver, installed inside the device body and configured to communicate with a payment service provider through maintaining a persistent wireless and/or wired network connection with the payment service provider; a processor, installed inside the device body and electrically connected to the transceiver; and a speaker, installed inside the device body and electrically connected to the processor, wherein the processor submits a payment result audio signal to the speaker upon receiving an external trigger signal from the payment service provider by using the transceiver, wherein the external trigger signal includes data defining at least a portion of a payment result, and wherein the payment result audio signal drives the speaker to output payment result audio.

Abstract: The present specification discloses a smart broadcast device, including: a device body, wherein the device body comprises a first surface that comprises a payment graphic code; a transceiver, installed inside the device body and configured to communicate with a payment service provider through maintaining a persistent wireless and/or wired network connection with the payment service provider; a processor, installed inside the device body and electrically connected to the transceiver; and a speaker, installed inside the device body and electrically connected to the processor, wherein the processor submits a payment result audio signal to the speaker upon receiving an external trigger signal from the payment service provider by using the transceiver, wherein the external trigger signal includes data defining at least a portion of a payment result, and wherein the payment result audio signal drives the speaker to output payment result audio.

Abstract: The present disclosure provides a method and device for in-vehicle payment. A face image of an in-vehicle user and a geographic location of the in-vehicle user are received at a point of a ride route traveled by a vehicle occupied by the in-vehicle user. An image set associated with the geographic location is received from an image database using the geographic location of the in-vehicle user. The image set includes face images of a plurality of users. The face image of the in-vehicle user is compared with face images in the image set to determine an identity of the in-vehicle user. A fare deduction account corresponding to the in-vehicle user is identified using the identity of the in-vehicle user. A fare corresponding to the ride route is deducted from the fare deduction account.

Abstract: A spray assembly includes a spray bar, a spray head assembly, and a connection base. The spray head assembly is connected to an end of the spray bar. The connection base is connected to another end of the spray bar and configured to fix the spray bar at a frame of an agricultural plant protection machine. The connection base includes a flexible connection base. The connection base is configured to cause the spray bar to swing relative to the frame in response to the spray bar being subjected to an external force.

Abstract: An unmanned aerial vehicle includes a central body having a plurality of sides and a plurality of arms extendable from the central body. Each arm is configured to support one or more propulsion assemblies that provide a propulsion force while the unmanned aerial vehicle is in flight. The arms are configured to transform between a flight configuration in which the arms are extended away from the central body and a compact configuration in which free ends of a first subset of the arms collectively define a rectangular area. Free ends of a second subset of the arms are closer to a yaw-axis of the unmanned aerial vehicle than the free ends of the first subset of the arms. The yaw-axis passes through the rectangular area.

Abstract: A spray head assembly includes a spray head body, a cover, a pressure relief adjustment member, and a seal assembly. The spray head body includes an inlet flow channel and an outlet flow channel. The cover is mounted at the spray head body and includes an accommodation chamber. The pressure relief adjustment member is configured to cooperate with the cover. The seal assembly is accommodated in the accommodation chamber and includes a seal valve plate, a connection member, and an elastic member. The seal valve plate is configured to connect the inlet flow channel and the outlet flow channel. The connection member is connected to the seal valve plate. The elastic member configured to provide an elastic force to the connection member, such that the seal valve plate is normally closed.

Abstract: Disclosed are methods, systems, and apparatus, including computer programs encoded on computer storage media, for performing interaction behavior detection. One method includes obtaining a depth image from a depth camera disposed above a rack, and a filming range of the depth camera covers an outer edge of each shelf in the rack and an aisle. A foreground images associated with a moving object from the depth image is extracted. Spatial coordinates of the moving object are obtained based on the foreground image. An object on a shelf in the rack that is physically contacted by the moving object is determined based on comparing the spatial coordinates of the moving object with spatial coordinates of the shelf, where the spatial coordinates of the shelf is determined based on a background depth image captured by the depth camera at a predetermined angle unobstructed by the moving object.

Abstract: A spraying apparatus includes a driving mechanism having a driving shaft rotatable around its own axis and a spin plate disposed at a bottom of the driving shaft. The spin plate is configured to rotate with the driving shaft to spray chemical solution. The driving mechanism includes a stator assembly, a rotor assembly and a housing assembly. The housing assembly includes a first housing member and a second housing member. The first housing member and the stator assembly are connected; the rotor assembly is connected to the second housing member; the first housing member is connected to the second housing member by snap-fit; and a bottom side of the second housing member is provided with a water inlet pipe that is connected to an internal of the spin plate.

Abstract: A control unit of the article processing terminal controls a radio frequency identification (RFID) reader of the article processing terminal to periodically scan a plurality of short-range articles. In response to a status change of an article of the plurality of short-range articles, the control unit receives an article identifier of the article from the RFID reader. The control unit controls a low-power wide-area network (LPWAN) module of the article processing terminal to send an article change message to a LPWAN gateway, where the article change message includes the article identifier and an address of an application server, and where the LPWAN gateway instructs, based on the article change message and the address, the application server to perform a next processing step on the article identified by the article identifier.

Abstract: The present disclosure provides a method and device for in-vehicle payment. A face image of an in-vehicle user and a geographic location of the in-vehicle user are received at a point of a ride route traveled by a vehicle occupied by the in-vehicle user. An image set associated with the geographic location is received from an image database using the geographic location of the in-vehicle user. The image set includes face images of a plurality of users. The face image of the in-vehicle user is compared with face images in the image set to determine an identity of the in-vehicle user. A fare deduction account corresponding to the in-vehicle user is identified using the identity of the in-vehicle user. A fare corresponding to the ride route is deducted from the fare deduction account.

Abstract: Embodiments of the specification provide offline shopping guide methods and apparatuses. One method includes: obtaining a user identifier (ID) of a user and a scene ID of a shopping venue; obtaining historical offline shopping data and historical online shopping data of the user according to the user ID, and obtaining commodity information of the shopping venue according to the scene ID; obtaining a commodity to be recommended to the user according to the historical offline shopping data, the historical online shopping data, and the commodity information; and sending augmented reality (AR) display information of the recommended commodity to a smart terminal of the user, so that the smart terminal displays the recommended commodity to the user in an AR mode.

Abstract: A service processing method includes: receiving RF signals sent by at least one terminal device, the RF signals including at least one device identifier of the at least one terminal device; selecting an RF signal from the received RF signals, and determining a terminal device corresponding to a device identifier included in the RF signal as a target payment device; collecting first biometric feature information of a user using the terminal device; and after obtaining a verification result of a verification on the user's identity based on the first biometric feature information, sending a payment request to a server if the verification is passed, wherein the payment request is configured to request for completing payment based on a payment account corresponding to the target payment device.

Abstract: A computer-implemented method comprises: obtaining, by the settlement device, a biometric feature of the user; determining, by the settlement device, that the obtained biometric feature matches a stored biometric feature, wherein the stored biometric feature corresponds to an account identifier; and in response to determining that the obtained biometric feature matches the stored biometric feature, performing, by the settlement device, a settlement of an account associated with the account identifier that corresponds to the stored biometric feature.

Abstract: The present specification discloses a smart broadcast device, including: a device body, wherein the device body comprises a first surface that comprises a payment graphic code; a transceiver, installed inside the device body and configured to communicate with a payment service provider through maintaining a persistent wireless and/or wired network connection with the payment service provider; a processor, installed inside the device body and electrically connected to the transceiver; and a speaker, installed inside the device body and electrically connected to the processor, wherein the processor submits a payment result audio signal to the speaker upon receiving an external trigger signal from the payment service provider by using the transceiver, wherein the external trigger signal includes data defining at least a portion of a payment result, and wherein the payment result audio signal drives the speaker to output payment result audio.