Intelligent canteen electronic scale integrated with far infrared heating function

Abstract

The utility model relates to an intelligent canteen electronic scale integrated with a far infrared heating function, and aims to solve the problems of huge size, inconvenience in installation, high cost, cumbersome use, influence on beauty and the like of a Boffy furnace heating mode in an existing intelligent canteen. The heating film is attached to the bottom of the glass weighing table top of the electronic scale, and the temperature-adjustable circuit board and the temperature display screen are arranged, so that accurate control and uniform heating of the temperature of the table top are realized, continuous heat preservation of dishes is guaranteed, and the temperature is adjustable (50-130 DEG C). Meanwhile, according to the design, the original high-precision weighing function of the electronic scale is reserved, and the weighing accuracy and stability are ensured. In addition, the electronic scale has the advantages of being light, attractive, easy to install and maintain and the like, and improves operation efficiency and user experience of a canteen. The system can be widely applied to various intelligent canteens, and provides powerful support for intelligent transformation of the modern catering industry.

Description

Technical Field

[0001] The utility model relates to the technical field of dining utensils, and in particular to a smart canteen electronic scale with an integrated far-infrared heating function. Background Art

[0002] With the rapid development of smart canteens, a new food collection and payment model—a weight-loss scale settlement system—has emerged to improve the dining experience and operational efficiency. This system places each dish on a separate electronic scale and calculates the price based on the actual weight of the dish, enabling a flexible dining experience where customers can "eat as much as they want, and pay as much as they want." However, to ensure food temperature, the current common practice is to place a Bofei stove above the electronic scale for heating and insulation.

[0003] While the Bofei oven has somewhat solved the problem of keeping dishes warm, its use also presents numerous inconveniences and limitations. First, the oven's bulk and weight not only increase the complexity and installation difficulty of the entire device, but also significantly increase the total weight of the system, making daily operation and maintenance inconvenient for canteen staff. Second, the Bofei oven requires regular cleaning and water changes, increasing the workload. Furthermore, the lack of a secure fastening between the Bofei oven and the electronic scale creates the risk of slipping and tipping, further compromising the system's stability and safety.

[0004] Furthermore, the Bofei oven's heating method also has limitations. It typically uses a water bath to keep food warm, a method that is not only relatively inefficient but also difficult to maintain uniform temperature. More importantly, the addition of the Bofei oven makes the entire system appear disorganized, lacking uniformity and aesthetic appeal.

[0005] In this context, the utility model proposes a smart canteen electronic scale with integrated far-infrared heating function, aiming to solve the shortcomings of existing technologies through technological innovation, improve the operating efficiency and service quality of the canteen, and at the same time bring users a more convenient, comfortable and accurate dining experience. Utility Model Content

[0006] To address the problems of the prior art, the present invention provides a smart electronic cafeteria scale with integrated far-infrared heating. By attaching a heating film to the bottom of the glass weighing table and equipping it with a thermostatically adjustable circuit board and temperature display, precise control of the table temperature and uniform heating are achieved. This design not only simplifies the system structure and reduces overall costs, but also significantly improves the product's portability and aesthetics. Furthermore, since the heating function is directly integrated into the electronic scale, the addition and transportation of additional equipment is avoided, making meal preparation, adding meals, and cleaning operations more convenient and efficient.

[0007] In order to solve the above technical problems, the present invention is implemented through the following technical solutions: a smart canteen electronic scale with integrated far-infrared heating function, comprising:

[0008] The weighing body has a weighing plate on the top, and the upper surface of the weighing plate is a glass plate, which serves as a weighing table;

[0009] A heating film is attached to the underside of the glass sheet and is used to provide an adjustable uniform temperature by heating;

[0010] A single-chip microcomputer is placed inside the scale body. The input end of the single-chip microcomputer is electrically connected to a real-time detection module for receiving and processing weight and temperature data. The output end of the single-chip microcomputer is electrically connected to an output module for controlling the heating condition of the heating film.

[0011] The touch interactive screen is set on one side of the scale body and is electrically connected to the microcontroller for displaying temperature and weight information and receiving user operation instructions.

[0012] In this embodiment, by combining the scale body with the heating film and applying it to the weighing of meals in the cafeteria, it is convenient to detect the weight of the meals taken out by the user by adopting the weight reduction mode, and then calculate the corresponding meal money by the unit price and weight, thereby improving the efficiency of meal settlement for users in the cafeteria.

[0013] The glass plate on the weighing plate serves as the weighing surface, directly contacting the plate or food placed on it. Sensors are connected beneath the weighing plate. These sensors sense and convert electrical signals into the weight of the object placed on the plate. These signals are transmitted through circuitry to a microcontroller, which processes the data to obtain the accurate weight.

[0014] The heating film is attached to the underside of the glass plate. When current passes through it, it generates heat according to Joule's law, producing far-infrared radiation. Far-infrared radiation is a type of electromagnetic wave with a long wavelength that can penetrate deep into objects, heating them quickly and evenly. The heating power (i.e., the amount of heat generated) of the heating film is controlled by the microcontroller via an output module and can be adjusted as needed to achieve the user-defined temperature.

[0015] In a specific embodiment, a panel is provided on the outer edge of the top of the glass plate, a placement groove is provided on the inner side of the panel, and a food bowl is placed inside the placement groove. The panel is raised around the edge of the glass plate to enhance the stability of the food bowl placed on the weighing table and hide the heating film to avoid the risk of burns.

[0016] In a specific embodiment, the heating film adopts far-infrared heating, and a temperature sensor is provided inside the enclosure for real-time temperature detection;

[0017] The heating film is set to far-infrared electric heating film, and the model is set to Aladdin 500.

[0018] In a specific embodiment, the heating film is set to an adjustable temperature of 50 degrees to 130 degrees.

[0019] In a specific embodiment, a weight sensor is provided inside the scale body, a weighing plate is placed on top of the weight sensor, and the weight sensor is used to detect the weight of the weighing plate and the items above it.

[0020] The weight sensor is set to be an S-type weighing sensor, and its model is set to: YN-301.

[0021] In a specific embodiment, the real-time detection module includes a weight sensor and a temperature sensor, and the output module includes a heating film.

[0022] The temperature sensor is set to be a PT1000 platinum thermal resistance temperature sensor.

[0023] The beneficial effects of the utility model are:

[0024] 1. This patented device integrates multiple functions, including weighing, heating, and pricing, into a single device, achieving a highly integrated product. This design not only reduces the number and complexity of components required for equipment installation, but also greatly simplifies the installation process, lowers the technical requirements for installers, improves installation efficiency, and saves users valuable time and costs.

[0025] Through the integrated setting, the space occupied is reduced, the efficiency of meal settlement is improved, the efficiency of users’ meals is greatly improved, and the convenience and comfort for customers are further improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the overall assembly structure of the utility model.

[0027] Figure 2 It is an exploded schematic diagram of the overall assembly structure of the utility model.

[0028] Figure 3 It is an exploded schematic diagram of the overall structure of the utility model.

[0029] Figure 4 This is a schematic diagram of the single chip electrical control system of the present utility model.

[0030] Figure 5 It is a schematic diagram of the interior of the real-time detection module of the present utility model.

[0031] Figure 6 It is an internal schematic diagram of the output module of the present utility model.

[0032] Figures 1 to 6 In: 1. Scale; 11. Touch interactive screen; 2. Single-chip microcomputer; 21. Real-time detection module; 211. Weight sensor; 212. Temperature sensor; 22. Output module; 3. Weighing plate; 31. Glass plate; 32. Enclosure; 321. Placement slot; 33. Heating film; 4. Food bowl. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0034] like Figures 1 to 6 The smart canteen electronic scale with integrated far-infrared heating function shown in the figure includes: a weighing body 1, a weighing plate 3 is provided on the top of the weighing body 1, and the upper surface of the weighing plate 3 is a glass plate 31, which serves as a weighing table; a heating film 33, which is attached to the glass plate and the bottom of the glass plate 31, and is used to provide an adjustable uniform temperature through heating; a single-chip microcomputer 2, the single-chip microcomputer 2 is placed inside the weighing body 1, the input end of the single-chip microcomputer 2 is electrically connected to the real-time detection module 21, which is used to receive and process weight and temperature data, and the output end of the single-chip microcomputer 2 is electrically connected to the output module 22, which is used to control the heating condition of the heating film 33; a touch interactive screen 11, the touch interactive screen 11 is arranged on one side of the weighing body 1, and is electrically connected to the single-chip microcomputer 2 for displaying temperature and weight information and receiving user operation instructions.

[0035] A panel 32 is provided on the outer edge of the top of the glass plate 31, and a placement groove 321 is provided on the inner side of the panel 32, and a food bowl 4 is placed inside the placement groove 321. The heating film 33 adopts far-infrared heating, and a temperature sensor 212 is provided inside the panel 32 for real-time temperature detection. The heating film 33 is adjustable from 50 degrees to 130 degrees. A weight sensor 211 is provided inside the scale body 1, and a weighing plate 3 is placed on the top of the weight sensor 211. The weight sensor 211 is used to detect the weight of the weighing plate 3 and the items above it. The interior of the real-time detection module 21 includes a weight sensor 211 and a temperature sensor 212, and the interior of the output module 22 includes a heating film 33.

[0036] When the food bowl 4 is placed on the weighing plate 3, its weight is transmitted to the weight sensor 211 below through the glass plate 31. As part of the real-time detection module 21, the weight sensor 211 accurately senses and measures the total weight of the food bowl and its contents, then transmits this data to the microcontroller 2 for processing. Based on the received weight information, the microcontroller 2 drives the touch screen 11 via the output module 22 to display the current weight data.

[0037] The heating film 33 is attached to the bottom of the glass plate 31 and provides heat to the food bowl 4 placed on the weighing plate 3 through far-infrared heating. The temperature sensor 212 inside the enclosure 32 monitors the temperature within the heating area in real time and also feeds this data back to the microcontroller 2. Based on the preset temperature range (50-130 degrees Celsius) and the feedback from the temperature sensor 212, the microcontroller 2 dynamically adjusts the heating power of the heating film 33 through the output module 22 to maintain or adjust the temperature to the user's desired level. This closed-loop control ensures the accuracy and stability of the heating process.

[0038] The touchscreen 11 serves as the primary interface between the user and the electronic scale. It not only displays the current weight and temperature but also allows the user to input commands through touch, such as setting the target temperature and adjusting the heating mode. The user's commands are transmitted to the microcontroller 2 via the touchscreen 11. The microcontroller 2 then executes the corresponding commands and controls the operating state of the heating film 33 through the output module 22, thus responding to the user's needs.

[0039] Example: This example describes the full application of a smart cafeteria electronic scale that integrates far-infrared heating and an intelligent pricing system in a real-world cafeteria environment. This scale calculates the weight of food entered by the user through weight reduction and automatically calculates the price accordingly, enabling fast and accurate pricing and payment.

[0040] Preparation stage:

[0041] The canteen staff first ensures that the smart canteen electronic scale (hereinafter referred to as the "electronic scale") has been correctly installed and powered on, and at the same time checks that key components such as the heating film, temperature sensor, and weight sensor are working properly.

[0042] According to the menu and price setting of the day, the staff inputs the initial weight of each type of meal (such as the standard weight of each meal before serving) and the corresponding price through the touch interactive screen of the electronic scale or the backend management system.

[0043] The heating film is preheated to a preset temperature range of 50-70 degrees to maintain the appropriate temperature of the food while ensuring that users can feel the warmth when picking up the food.

[0044] User picks up meal:

[0045] The user takes an empty plate to the food bowl. The electronic scale automatically detects and records the weight of the food bowl (denoted as W1) through the weight sensor. The user takes the food out of the food bowl and puts it on their own plate. At this time, the electronic scale automatically detects and records the weight of the food bowl (denoted as W2) through the weight sensor.

[0046] Pricing stage:

[0047] The actual weight of the food taken out by the user = W1 - W2.

[0048] Based on the preset meal prices (priced by weight), the electronic scale automatically calculates the total price of the meal selected by the user and displays it on the touch interactive screen.

[0049] After the user confirms that everything is correct, they can choose a payment method to make the payment (such as swiping a card, scanning a QR code, etc.). The electronic scale supports multiple payment methods and is seamlessly connected to the cafeteria's cash register system to ensure the security and convenience of transactions.

[0050] Subsequent processing:

[0051] After the transaction is completed, the user takes the food bowl and leaves. The electronic scale automatically records the transaction data, including time, user (optional), food type, weight, price, etc., providing a basis for subsequent data analysis and management.

[0052] Canteen staff can view real-time transaction status, inventory status, hot-selling dishes and other information through the electronic scale's touch interactive screen or the backend management system as needed, so as to adjust business strategies in a timely manner.

[0053] After the business closes for the day, staff can clean and maintain the electronic scale to ensure the long-term stable operation of the equipment. At the same time, transaction data reports can be exported through the backend management system for financial settlement and performance analysis.

[0054] From the description of the above embodiments, it can be seen that in actual use, this device can not only provide convenient meal heating services, but also realize fast and accurate pricing and payment through the intelligent pricing system, which greatly improves the canteen's operating efficiency and user experience.

[0055] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A smart canteen electronic scale with integrated far-infrared heating function, characterized in that: include: A weighing body (1), wherein a weighing plate (3) is provided at the top of the weighing body (1), and the upper surface of the weighing plate (3) is a glass plate (31) serving as a weighing table; A heating film (33) is attached to the bottom of the glass plate (31) and is used to provide an adjustable uniform temperature by heating; A single-chip microcomputer (2), the single-chip microcomputer (2) is placed inside the scale body (1), the input end of the single-chip microcomputer (2) is electrically connected to a real-time detection module (21) for receiving and processing weight and temperature data, and the output end of the single-chip microcomputer (2) is electrically connected to an output module (22) for controlling the heating condition of the heating film (33); A touch interactive screen (11) is provided on one side of the scale body (1) and is electrically connected to the single chip microcomputer (2) for displaying temperature and weight information and receiving user operation instructions.

2. The smart canteen electronic scale with integrated far-infrared heating function according to claim 1, characterized in that: A panel (32) is provided on the outer edge of the top end of the glass plate (31), a placement groove (321) is provided on the inner side of the panel (32), and a food bowl (4) is placed inside the placement groove (321).

3. The smart canteen electronic scale with integrated far-infrared heating function according to claim 2, characterized in that: The heating film (33) adopts a far-infrared heating method, and a temperature sensor (212) is provided inside the enclosure (32) for real-time temperature detection.

4. The smart canteen electronic scale with integrated far-infrared heating function according to claim 3, characterized in that: The heating film (33) is set to an adjustable temperature of 50 degrees to 130 degrees.

5. The smart canteen electronic scale with integrated far-infrared heating function according to claim 1, characterized in that: A weight sensor (211) is provided inside the scale body (1), a weighing plate (3) is placed on the top of the weight sensor (211), and the weight sensor (211) is used to detect the weight of the weighing plate (3) and the items above it.

6. The smart canteen electronic scale with integrated far-infrared heating function according to claim 1, characterized in that: The real-time detection module (21) includes a weight sensor (211) and a temperature sensor (212) therein, and the output module (22) includes a heating film (33) therein.

Images