Weight reduction charging method and system

Abstract

The invention relates to a weight reduction charging method and system, and belongs to the field of self-service catering. The method comprises the steps that the weight of each dinner plate is collected in real time, and user identity authentication is waited; after the user identity is authenticated, if it is detected that the weight of a dinner plate is reduced, the consumption amount is calculated according to the reduced weight and the corresponding unit price, and settlement of the user is waited; and after settlement is completed, waiting for user identity confirmation again. According to the invention, misoperation or wrong charging caused by poor food taking order of the buffet table can be avoided, basic informatization service is provided for the dish stock and dish preparation guidance of merchants, the management cost of operators is reduced, and information such as dining details and the like can be provided for dining customers in time.

Description

Technical Field

[0001] The invention relates to a weight loss charging method and system, belonging to the field of self-service catering. Background Art

[0002] At present, the self-service catering weighing devices on the market mainly use a single weighing sensor connected to the main controller, which detects the weight and amount on the main controller and observes the weight and amount on the auxiliary display. In similar scenarios such as spicy hot pot or self-selected dishes, the cost of dishes is different, and the settlement unit price should be different. However, due to the lack of measurement methods, shops often choose to settle consumers at an average price (same price for meat and vegetables, etc.), which makes consumers feel unfair. At the same time, shops will think that the cost of vegetarian dishes is also high, but if the price is high, it will lead to customer loss, which will fall into a vicious circle.

[0003] The Chinese patent document with the announcement number CN221101445U discloses a self-service intelligent dining table, including a weighing table, on which a number of weighing areas and identification areas are arranged, a weighing unit is arranged in the weighing area, and an identification unit for identifying a plate is arranged in the identification area; an image acquisition unit, a display unit, a speaker unit, a central processing unit and a payment unit are arranged above the weighing table, and the central processing unit is electrically connected to the weighing unit, the identification unit, the image acquisition unit, the display unit, the speaker unit and the payment unit respectively. Different unit prices are set for different dishes, and different unit prices of dishes need to be placed in different types of plates, different types of plates are placed in different dining areas, and different types of plates are equipped with magnetic parts matching different weighing areas. When picking up the meal, each customer needs to place the plates with magnetic parts placed in different dining areas in the corresponding weighing area to be correctly weighed and charged, so that different unit prices can be set for dishes of different costs and accurate charging can be achieved. However, the meal pick-up and payment process is relatively complicated, and the dining table uses a large number of magnetic components, Hall switches and other related devices, which is costly.

[0004] The Chinese patent document with publication number CN117854205A discloses a weight-reduction billing method and device based on intelligent weighing settlement, the method includes: judging whether it is a valid meal pick-up time period; during the invalid meal pick-up time, the intelligent weighing component reads the original weight G of the scale body and the real-time weight X; based on the preset time interval T and the preset evaporation threshold Z, the real-time weight is updated in real time; during the valid meal pick-up time, the intelligent weighing component reads the original weight G of the scale body with the intelligent tray placement time as the reference time; based on the preset time interval T, the tray information is read; based on the weight-reduction billing algorithm, the user's consumption is obtained; if the user does not continue to consume within the preset time period, the consumption settlement is completed. In the intelligent settlement system in this application, the weight-reduction billing algorithm is used to reasonably calculate the weight of the meal picked up by the dining table consumer, and the reduced weight (that is, the weight of the meal picked up by the customer) can be directly calculated after the meal is picked up. The customer does not need to weigh it specifically, and at the same time, the meal plate and magnetic components are saved, saving costs. However, in actual applications, if there is a situation of queue jumping, card swiping error, or multiple people consuming at the same time when picking up food, billing errors are likely to occur, resulting in failure of the transaction, affecting customer experience and settlement efficiency. Summary of the invention

[0005] The purpose of the present invention is to provide a weight-reduced billing method and system to solve the problem of difficulty in billing or incorrect billing due to the order of picking up food at the buffet counter, and at the same time solve the problem of difficulty in billing multiple categories and multiple unit prices, and provide information data for customers' dining and merchants' material losses.

[0006] To achieve the above object, the solution of the present invention includes: A weight-loss billing method of the present invention includes: collecting the weight of each plate in real time and waiting for user identity authentication; after the user identity authentication, if it is detected that the weight of the plate has been reduced, the consumption amount is calculated based on the reduced weight and the corresponding unit price, and the user is waited for settlement; after the settlement is completed, the user identity confirmation is waited again.

[0007] Furthermore, when it is detected that the weight of the dinner plate has been reduced but the user has not yet performed identity authentication, an alarm is issued.

[0008] Furthermore, after the user identity is authenticated and it is detected that the weight of the plate has been reduced but the settlement has not been completed, if another user performs identity authentication, the identity authentication will be rejected.

[0009] Furthermore, the dinner plate is used to place dishes of different unit prices or different categories.

[0010] Furthermore, the identity authentication methods include face recognition, fingerprint recognition, palm print recognition, card insertion, card swiping or code scanning.

[0011] Furthermore, settlement methods include face recognition, fingerprint recognition, palm print recognition, card collection, card swiping or code scanning.

[0012] Furthermore, if a reduction in the weight of the plate is detected, consumption details, customer information, and nutritional information calculated based on the reduced weight are displayed in real time.

[0013] Furthermore, after settlement, the order data is uploaded to the cloud server so that it can be viewed or printed on a mobile terminal or at the counter and relevant order data can be extracted in the background.

[0014] A weight-reduction charging system of the present invention comprises a processor, and the processor is used to execute instructions for implementing the weight-reduction charging method as described in any one of claims 1 to 9.

[0015] The beneficial effects of the present invention are: The present invention is a pioneering invention. The present invention provides a weight-reduced billing method and system. When picking up food at a buffet counter, consumers first perform identity authentication, then pick up food, and then perform weight-reduced billing. Finally, consumers settle accounts. Through this method, merchants can directly price a variety of food items; the method of the present invention establishes an order to ensure that consumers are authenticated before picking up food and billing, and enter the next round of identity authentication after completing settlement, which can avoid incorrect billing caused by poor order in picking up food.

[0016] Furthermore, when there is no user identity confirmation and the weight of a plate is reduced, no billing is performed but an alarm is issued to avoid disrupting the order of taking turns to pick up food and check out.

[0017] Under the order established by the method of the present invention, people who have completed identity authentication can pick up meals individually, ensuring that meals are picked up by one user at a time. By acquiring the data of each dish through each weighing sensor and uploading it to the server, basic information services can be provided for the inventory of dishes and preparation guidance of merchants, reducing the management cost of operators; and information such as dining details can be provided to dining customers in a timely manner. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a flow chart of the weight loss billing method. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical solutions and advantages of the present invention more clear, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments.

[0020] The idea of ​​the present invention is to provide a weight-reduced billing method and system. When picking up food at a buffet counter, the user (consumer) first performs identity authentication, then picks up the food, and then performs weight-reduced billing. Finally, the consumer settles the bill (settlement refers to the user's confirmation of the consumption amount of the meal, not including payment, that is, the user can pay at this time, or record the bill for a period of time before paying). Through this method, merchants (operators) can set up multiple weighing sensors at the buffet counter to bill for a variety of meals. Consumers can pick up the food and bill after identity authentication, which is convenient and fast. Picking up food according to this method can avoid the problem of difficult billing or incorrect billing caused by consumption order, while reducing the operator's cost, and the operator can obtain information data on material usage.

[0021] Method Example 1: like Figure 1 A weight loss billing method shown in the figure, when the user settles the bill, the consumption is carried out in a manner corresponding to the identity authentication, and the steps are as follows: 1) After the weight-loss charging device is in operation, configure the number of external weighing sensors and the relevant parameters of the corresponding sales items, clarify the unit price and ancillary information (nutritional content and other parameters), and perform initial distribution to achieve the stability of the weighing sensors. At this time, dishes of different unit prices or categories have been placed on the plates of each weighing sensor for users to pick up their meals; 2) The screen displays a user identification prompt, guiding the user to authenticate or bind their identity through face recognition, fingerprint recognition, palm print recognition, card swiping or code scanning, etc., which means that the subsequent meal pick-up consumption is bound to the current user; 3) The main controller continuously polls the weight value of each weighing sensor and continuously compares it with the previous set of data to determine whether any weighing sensor has a weight change. If no weight change occurs, the main controller continuously polls the weight value of each weighing sensor; 4) If a weight change occurs, determine whether any user has already completed identity authentication; 5) If the user is not identified as having been authenticated, settlement cannot be carried out. The user can be reminded to authenticate their identity before picking up the food by triggering an alarm device or displaying a UI screen on the display. Before the authentication, the weight of the food picked up by the current user needs to be confirmed by the user and calculated into the current order. At the same time, the administrator authorizes the process and guides the user through the process. 6) If it is recognized that a user has been authenticated, the change amount of the weighing sensor is collected in real time. The main controller associates the real-time collected weighing sensor data with the weight loss algorithm stored locally, performs local calculations according to the calculation method of weight loss billing described in the Chinese patent document with publication number CN117854205A, and associates it with the auxiliary information stored locally. The nutritional information is calculated by multiplying the nutritional components of the unit weight of different dishes (dish calories, carbohydrate content, vitamin content, protein content, etc.) with the corresponding meal weight and then summing them. The main controller converts the collected data and the calculated data into the actual consumption amount and the total amount, and displays the consumption details, total price, customer information, and the set unit price and auxiliary information on the display; 7) If another user attempts to authenticate after a user has been identified and authenticated but has not yet settled, the alarm device will be triggered or a UI screen will be displayed on the display to remind the user to complete the current settlement before picking up the next meal, to avoid incorrect billing caused by queue jumping or misoperation; 8) After the user has picked up the food, the user settles the bill again using the same method as identity authentication (i.e. face recognition, fingerprint recognition, palm print recognition, card swiping or code scanning, etc.), and a single bill is generated, and the order data is displayed on the display for a period of time; 9) The main controller uploads the order data to the cloud server through TCP, WiFi or wireless network, which can be viewed and printed on the mobile terminal or counter. It is also convenient for the operator to enter the backend to extract the dining sales data for the current, meal, daily, weekly and other time periods; 10) The device returns to the consumption mode awaiting authentication.

[0022] Method Example 2: like Figure 1 A weight loss billing method shown, when the user can use a method that does not correspond to the identity authentication during settlement, the steps are as follows: 1) After the weight reduction charging device is in operation, configure the number of external weighing sensors and the relevant parameters of the corresponding sales items, clarify the unit price and ancillary information (parameters such as nutritional content), and perform initial distribution to achieve the stability of the weighing sensors; 2) The screen displays a user identification prompt to guide the user to authenticate through face recognition, fingerprint recognition or palm print recognition; 3) The main controller continuously polls the weight value of each weighing sensor and continuously compares it with the previous set of data to determine whether any weighing sensor has a weight change. If no weight change occurs, the main controller continuously polls the weight value of each weighing sensor; 4) If a weight change occurs, determine whether any user has already completed identity authentication; 5) If the user is not identified as having been authenticated, settlement cannot be carried out. The user can be reminded to authenticate their identity before picking up the food by triggering an alarm device or displaying a UI screen on the display. Before the authentication, the weight of the food picked up by the current user needs to be confirmed by the user and calculated into the current order. At the same time, the administrator authorizes the process and guides the user through the process. 6) If it is recognized that a user has been authenticated, the change of the weighing sensor is collected in real time. The main controller associates the real-time collected weighing sensor data with the weight loss algorithm stored locally, performs local calculations according to the calculation method of weight loss billing described in the Chinese patent document with publication number CN117854205A, and associates it with the auxiliary information stored locally. The nutritional information is calculated based on the nutritional components of different dishes (dish calories, carbohydrate content, vitamin content, protein content, etc.) and the weight of the meal. The main controller converts the collected data and the calculated data into the actual consumption amount and the total amount, and displays the consumption details, total price, customer information, and the set unit price and auxiliary information on the display; 7) If another user attempts to authenticate after one user has been identified and authenticated, the alarm device is triggered or a UI screen is displayed on the display to remind the user to complete the current settlement before picking up the next meal; 8) After the user has picked up the food, he / she will scan the code or swipe the card to settle the bill, and a single bill will be generated. The order data will be displayed on the monitor for a period of time. 9) The main controller uploads the order data to the cloud server through TCP, WiFi or wireless network, which can be viewed and printed on the mobile terminal or counter. It is also convenient for the operator to enter the backend to extract the dining sales data for the current, meal, daily, weekly and other time periods; 10) The device returns to the consumption mode awaiting authentication.

[0023] Method embodiment 3: 1) After the weight reduction charging device is in operation, configure the number of external weighing sensors and the relevant parameters of the corresponding sales items, clarify the unit price and ancillary information (parameters such as nutritional content), and carry out initial distribution, put different plates into different plates, place the plates on the corresponding different weighing sensors, and achieve the stability of the weighing sensors; 2) Display user identification prompts to guide users to authenticate their identities through face recognition, fingerprint recognition, palm print recognition, card insertion, card swiping or code scanning; 3) Collect the weight of each plate in real time and wait for the user to authenticate their identity; 4) After the user completes identity authentication, the weight changes of each weighing sensor are collected in real time, and the weight reduction of the plate will be detected after the user picks up the meal; 5) Multiply the reduced weight of each plate and the corresponding unit price to calculate the amount of each dish the user has taken, and then add up the amounts of different dishes to calculate the total consumption amount; 6) Wait for user settlement; 7) After settlement is completed, wait for the next identity authentication.

[0024] As another implementation method: while waiting for user identity authentication, if it is detected that the weight of the plate has decreased, the user will be prompted to authenticate first and then pick up the food. The weight of the food picked up before authentication will be calculated into the current bill. The user can pick up the food after confirming and authenticating the identity.

[0025] As another implementation method: if a reduction in the weight of the plate is detected while waiting for user identity authentication, settlement cannot be performed.

[0026] As another implementation method: after the user identity is authenticated and it is detected that the weight of the meal plate has been reduced but the settlement has not been completed, if another user performs identity authentication, the user is prompted to complete the current settlement before proceeding with the next meal pick-up process.

[0027] Through the above method, shops can directly charge multiple sales commodities on the same device, and consumers can bind to the selected commodities through convenient methods such as face recognition, card reading, code scanning, palm swiping, etc., and the quantity, amount, nutritional ingredients and other information of the selected commodities can be displayed on the display. Shops can classify and price multiple commodities or even single items to reduce operating costs, and consumers can directly associate billing without manual weighing and accounting. Consumers can take on demand and have more choices. They can view the amount, nutritional composition and other information of commodities in real time through the display, and can avoid waste in small quantities and multiple times. This method ensures orderly meal collection, high efficiency, and is not prone to incorrect billing.

[0028] System Example: This embodiment provides a weight reduction billing system, including a processor for connecting to multiple weighing sensors, and the processor is also used to execute instructions for implementing a weight reduction billing method. The weight reduction billing method has been introduced clearly enough in the method embodiment and will not be repeated here.

Claims

1. A weight loss charging method, characterized in that: include: The weight of each plate is collected in real time, and the user identity authentication is waited for. After the user identity authentication, if a reduction in the weight of the plate is detected, the consumption amount is calculated based on the reduced weight and the corresponding unit price, and the user settlement is waited for. After the settlement is completed, the user identity confirmation is waited for again.

2. The weight loss charging method according to claim 1, characterized in that: When it is detected that the weight of the plate has been reduced but the user has not yet authenticated his identity, an alarm will be issued.

3. The weight loss charging method according to claim 1, characterized in that: After the user is authenticated and it is detected that the weight of the plate has been reduced but the settlement has not been completed, if another user attempts to authenticate, the authentication will be rejected.

4. The weight loss charging method according to claim 1, characterized in that: The dinner plate is used to place dishes of different unit prices or different categories.

5. The weight reduction charging method according to claim 1, characterized in that: The identity authentication methods include face recognition, fingerprint recognition, palm print recognition, card insertion, card swiping or code scanning.

6. The weight loss charging method according to claim 1, characterized in that: The settlement methods include face recognition, fingerprint recognition, palm print recognition, card collection, card swiping or code scanning.

7. The weight loss charging method according to claim 1, characterized in that: If a reduction in plate weight is detected, consumption details, customer information, and nutritional information calculated based on the reduced weight will be displayed in real time.

8. The weight reduction charging method according to claim 1, characterized in that: After settlement, the order data is uploaded to the cloud server so that it can be viewed or printed on the mobile terminal or at the counter and the relevant order data can be extracted in the background.

9. A weight loss charging system, comprising a processor, characterized in that: The processor is used to execute instructions to implement the weight reduction billing method as described in any one of claims 1 to 8.

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