31results about How to "Solve the queuing problem" patented technology

The invention discloses a self-service shopping settlement method and system. The self-service shopping settlement method comprises the steps that a payment client calls a camera device to scan an identification information image of a purchased commodity after receiving a shopping scanning operation trigger, obtains the commodity information of the purchased commodity according to a scanning result, and displays a payment operation interface; the payment client obtains order information and payment account information of purchased commodities and sends the order information and the payment account information to the server under the condition that payment confirmation operation is obtained from the payment operation interface, and displays a payment code of a home terminal payment account;the collection client scans the payment code displayed by the payment client, obtains payment account information contained in the payment code and sends the payment account information to the server; and the server queries the order information corresponding to the payment account information corresponding to the payment code in the pre-received order information and payment account informationsent by the payment client, and performs settlement and deduction on the payment account corresponding to the payment code according to the queried order information.

The invention relates to an infusion chair. The infusion chair comprises a chair body, a supporting rod, a fixator, an auxiliary fixing rod, a beam and a hook, wherein the fixator is fixedly connected to the rear of one armrest of the chair body through screws, the supporting rod is fixedly connected with the fixator, one end of the auxiliary fixing rod is fixedly connected to the rear of the chair body through screws, the other end of the auxiliary fixing rod is fixed to the position, close to the lower portion, of the supporting rod in a sleeved connection mode, the beam is fixed to the top end of the supporting rod in a sleeved connection mode, and the hook is connected to the top end of the beam in a sleeved connection mode. The infusion chair is small in occupied space, the positions for seeing a doctor and performing infusion in a hospital can be expanded, the queuing problem can be solved when there are so many patients, and the infusion chair is suitable for being popularized on a large scale.

The invention provides a method for controlling the queuing distance of autonomous vehicles, comprising the following steps: establishing a single-vehicle constant-velocity control system; according to the single-vehicle constant-velocity control system, a multi-vehicle distance control system is obtained through multi-agent theory; designing an internal model compensator parameters, and analyze the robustness of the multi-vehicle distance control system; according to the robustness of the multi-vehicle distance control system and analysis, the vehicle is simulated; according to the simulation results, the internal model compensator of the control system is applied to the vehicle . The autonomous vehicle queuing distance control method provided by the present invention enables a vehicle to follow another vehicle and keep a certain distance from the vehicle in front. This distance is almost constant, and by setting the parameters of the internal model compensator and Anti-collision, avoiding vehicle collisions, solves the problem of multiple vehicles queuing; this method is not limited by vehicle types, considers wind resistance, and does not involve vehicle braking, interference and uncertainty.

Disclosed are a self-service shopping settlement method and system. A self-service shopping settlement method, the method comprising: after the payment client receives the trigger of the shopping scan operation, calling the camera device to scan the identification information image of the purchased product, obtaining the product information of the purchased product according to the scanning result, and displaying the payment operation interface ; The payment client obtains the payment confirmation operation from the payment operation interface, obtains the order information and payment account information of the purchased goods and sends them to the server; the server receives the order information and payment account information sent by the payment client After receiving the information, the payment account will be debited according to the order information.

The present invention is a weighing-type cafeteria unmanned vending device, which comprises a door entry device (1), a monitoring device (2), an exit device (3), the Internet (4), a server (5), and a database (6) , mobile terminal (7), client / Web (8); wherein, the door entry device is responsible for managing and guiding customers into the restaurant, and the monitoring device is responsible for monitoring the consumption of various dishes in real time on the one hand, and on the other hand, is responsible for monitoring the consumption of all customers in the restaurant. Behavior, the exit device is responsible for managing and guiding customers to leave the restaurant, the Internet is respectively connected to the entrance device, monitoring device, exit device, server, mobile terminal and client / Web, and the server is connected to the database to store and process data. It can realize self-service payment and settlement, remote intelligent management, improve the service quality and dining experience of weighing cafeterias, and can intelligently monitor the dining environment to ensure civilized dining.