Abstract: Disclosed is a power grid transmission and distribution cooperative dispatching method and system in a power market environment, relating to the technical filed of power market. The method includes: power grid transmission and distribution data are collected, and economic dispatching modeling is carried out on a hybrid system containing hydro-thermal power; linearization processing is carried out on nonlinear terms in the model; and accelerated solving is carried out on the model by adopting Benders decomposition, so that power gird transmission and distribution cooperative dispatching is optimized. The integration capacity of the power system containing hydro-thermal power to the renewable energy is enhanced, and the utilization efficiency of resources is improved, and the solving process is simplified in the present invention.

Abstract: A vending machine (100) and a vending method and vending system (1000) therefor, the vending machine (100) comprising a machine body (10), a door body (20), and at least one layer of shelves (30) and a weighing device (40) that are installed inside the machine body (10). The vending method comprises: collecting the weight of products on a shelf before and after vending (S1); calculating the difference of the change between the weight of the products on the shelf before vending and the weight of the products on the shelf after vending (S2); and if the difference of the change is less than a first weight change threshold, issuing an alarm prompt (S3), wherein the first weight change threshold is less than or equal to zero. Using the present invention may promptly determine the misplacement and replacement of the products without relying on an RFID tag.

Abstract: A method for controlling a self-service vending device to be safely opened, a server and a self-service vending system are provided.

Abstract: A self-service vending device and a vending method thereof, and a self-service vending system. The self-service vending device includes: a device body, a door, at least one shelf mounted in the device body, a weighing module, and a main control module. The weighing module comprises a micro-control unit and a weighing unit corresponding to each shelf. The micro-control unit and the weighing unit corresponding to each shelf are connected. The weighing unit is used for acquiring the weight of goods on the corresponding shelf. The main control module is separately connected to the micro-control unit provided on each shelf to obtain the weight information of goods on each shelf after the vending, thereby determining vending information according to the value of change in the weight of the goods on each shelf before and after the vending. Vending information is identified independently of RFID electronic tags, and thus the costs are low, and the present invention is easy to promote.

Abstract: A vending machine (100) and a vending method and vending system (1000) therefor, the vending machine (100) comprising a machine body (10), a door body (20), and at least one layer of shelves (30) and a weighing device (40) that are installed inside the machine body (10). The vending method comprises: collecting the weight of products on a shelf before and after vending (S1); calculating the difference of the change between the weight of the products on the shelf before vending and the weight of the products on the shelf after vending (S2); and if the difference of the change is less than a first weight change threshold, issuing an alarm prompt (S3), wherein the first weight change threshold is less than or equal to zero. Using the present invention may promptly determine the misplacement and replacement of the products without relying on an RFID tag.

Abstract: A smart vending apparatus and a control method thereof. The apparatus includes: a cabinet (10) provided with a product shelf (102) used to display items for sale, the items carrying item information tags. A main control system is provided within the cabinet (10) and has a tag scanner (304) and a communication device (306) being respectively connected to a central processor (302) thereof. Upon receiving a door-opening instruction sent by the server after the server authenticates the identity information, the central processor (302) controls the door (20) to switch from a closed state to an open state. After the door (20) switches from the open state to the closed state, the tag scanner (304) scans all item information tags in the cabinet (10) to determine current inventory information.

Abstract: A barcode reading method and a barcode reading device are provided. An image sensor is utilized to capture an image of a barcode via an optical lens, and then a triangulation method and an ideal lens imagining method are collocated to calculate the digital image so as to produce an optimum image distance. A distance between the image sensor and the optical lens is then adjusted in accordance with the optimum image distance, so that the barcode can be immediately and clearly imaged on the image sensor.

Abstract: A barcode reading method and a barcode reading device are provided. An image sensor is utilized to capture an image of a barcode via an optical lens, and then a triangulation method and an ideal lens imagining method are collocated to calculate the digital image so as to produce an optimum image distance. A distance between the image sensor and the optical lens is then adjusted in accordance with the optimum image distance, so that the barcode can be immediately and clearly imaged on the image sensor.