Intelligent Metering and Meal Selection System

Abstract

This invention relates to an intelligent metering and meal selection system, comprising a tray machine, an intelligent meal selection table, and trays. The tray machine includes a chassis, with an RFID chip embedded in the tray. A tray outlet is located in the middle of the chassis, and an RFID reader is installed at the tray outlet. The reader is connected to a PLC. The signal input terminals of the lifting motor and the servo motor are connected to the signal output terminal of the PLC. The PLC's controller memory is connected to a local database, which is connected to a WEB management platform. The intelligent metering and meal selection table includes a table frame and a main unit. Multiple food troughs are located at the bottom of the table frame, each containing a food trough. A weighing sensor is installed at the bottom of each food trough, and the signal output terminal of each weighing sensor is connected to the signal input terminal of the main unit. An RFID reading device is installed on a box next to the food troughs. The signal output terminals of the weighing sensors and the RFID chip reading device are connected to the local database.

Description

Technical Field

[0001] The invention belongs to the field of nutritional diet, relates to automatic control technology, and in particular to an intelligent metering and meal selection system. Background Art

[0002] At work, many companies provide meals for their employees. These meals are usually provided to employees in the form of group meals. Employees can choose their own dishes and match their nutritional intake with each meal of the day.

[0003] As people live longer and the incidence of chronic diseases increases, people are increasingly aware of the importance of maintaining health and preventing disease. In order to ensure that everyone can enjoy health, the urgent task is not to improve the expensive diagnosis and treatment system that mainly serves the unhealthy people, but to establish a nutritional combination that can serve both healthy and unhealthy people.

[0004] However, due to reasons of information sources and time costs, especially when enjoying group meals, it is difficult for employees to reasonably grasp their own nutritional needs while enjoying group meals due to the lack of theoretical basis and concrete food cases.

[0005] In view of this, the patent applicant of this invention has tailored a personalized nutrition analysis system for employees, so that diners can immediately grasp their detailed personal health status, guide diners in the process of ordering meals, and further acquire the knowledge of self-health management, while facilitating the company to control the dining and nutritional status of diners. This system is also very suitable for promotion. Summary of the invention

[0006] The purpose of the present invention is to overcome the shortcomings of the prior art and provide an intelligent metering and meal selection system that combines intelligent management with manual meal selection.

[0007] The present invention solves the technical problem by adopting the following technical solutions:

[0008] A smart metering meal selection system comprises a tray machine, a smart meal selection table and a tray. The tray machine comprises a chassis, the tray is equipped with a radio frequency chip, a tray outlet is arranged in the middle of the chassis, an RFID reader is installed at the tray outlet, the reader is connected to a PLC, a signal input end of a lifting motor and a servo motor is connected to a signal output end of the PLC, a controller memory of the PLC is connected to a local database, and a WEB management platform is connected to the local database. The smart metering meal selection table comprises a table frame and a host, a plurality of dish basin slots are arranged at the lower part of the table frame, a dish basin is placed in each dish basin slot, a weighing sensor is installed at the bottom of each dish basin slot, a signal output end of each weighing touch sensor is connected to a signal input end of the host, an RFID reader is arranged on the box next to the dish basin slot, a signal output end of the weighing touch sensor and a reading device for reading the above-mentioned RFID radio frequency chip are connected to a local database, and a signal output end of the weighing touch sensor and a reading device for reading the above-mentioned RFID radio frequency chip are simultaneously connected to a third-party database through a switch.

[0009] Moreover, a lifting device is installed on the bottom inner surface of the chassis of the pallet machine, and the lifting device includes a lifting motor, a guide rail and a lifting frame. The lifting frame is slidably installed on the guide rail and is driven by the lifting motor. Multiple pallets are stacked on the lifting frame, and a pushing device is arranged at a position in the chassis at the same level as the pallet outlet.

[0010] Moreover, the lifting device also includes a lead screw, a nut and a slider. The bottom of the lead screw is coaxially fixed to the output shaft of the lifting motor through the nut. A slider is coaxially mounted on the lead screw, and two lifting frames are connected to both sides of the slider.

[0011] Moreover, a vertical plate is vertically installed on the bottom surface of the chassis on both sides of the lifting frame, and a pushing device is installed on the two vertical plates. The pushing device includes a servo motor, a transmission wheel, a transmission belt, and a push rod. The servo motor drives the push rod through the transmission belt and the transmission wheel to horizontally push the pallet on the lifting frame toward the pallet outlet.

[0012] Furthermore, a sensor bracket is arranged on the pushing device, and position sensors are arranged downward on both sides of the sensor bracket.

[0013] Moreover, an observation window is arranged on the warehouse door, a signal output end of the position sensor is connected to a signal input end of the PLC, and a signal input end of the lifting motor and a servo motor is connected to a signal output end of the PLC.

[0014] Moreover, a display is installed at a position on the upper part of the dining table frame corresponding to each of the vegetable bowl slots.

[0015] Moreover, a touch screen and a power switch are respectively arranged on the chassis of the pallet machine, and the touch screen is connected to the PLC.

[0016] Moreover, an air dry-burning electric heating pipe and a hot air circulation system are installed on the dining table frame, wherein the air dry-burning electric heating pipe is located on the top of the plate frame structure, and the air dry-burning electric heating pipe heats and insulates the vegetable bowl slot on the box body through the pipeline.

[0017] The steps of the meal selection method of the intelligent metering meal selection system are:

[0018] (1) The diner swipes his dining card or enters his work number on the tray machine. The system sends the person's information to the meal guidance platform for identity verification. After the identity verification is passed, the tray is automatically issued;

[0019] The diner swipes the card in the card reader swiping area of ​​the tray machine. The system reads the dining card chip information, obtains the corresponding personnel information through the dining card chip ID, and then verifies the legitimacy of the personnel by data interaction with the local database. After the verification, the system sends a control instruction to the lifting device, and the tray is moved to the tray moving platform through the lifting device. The system sends a control instruction to the RFID reading and writing device. When the diner takes out the tray, the tray machine PLC binds the personnel information with the tray's RFID information for the diner to take it by himself. At the same time, the PLC controls the lifting device to automatically lift the reduced tray to replenish it.

[0020] (2) The third-party database obtains the nutritional information of multiple vegetable bowls required by the employee and displays it on the display corresponding to each vegetable bowl;

[0021] (3) Place the tray in the smart food pickup station for identification, and then the controller of the smart food pickup station obtains employee identity information and nutritional information from the local database;

[0022] (4) The weight sensor of the smart village dining table displays the weighing data and the nutritional data corresponding to the meal weight in real time. After the tray moves out of the RFID reading area, the system automatically calculates the weight of the dish and pushes the dish information to the meal guidance platform to complete the meal collection process.

[0023] The advantages and positive effects of the present invention are:

[0024] The present invention provides a self-service meal pickup system that can display information such as nutrients and suitable groups of people of each dish to diners. Before the meals are officially ordered, the system can remind diners of the nutrition of the meals to achieve a balanced diet, and has good promotion value.

[0025] The present invention guides the employees' meals through the meal picking system, and the intelligent metering and meal selection system obtains the nutrient information of dishes in real time, and displays it to the diners during the meal picking process, thereby realizing the dining guidance function for the diners, guiding the intake of each person and realizing the comparative analysis of the nutrients of the meal through the application of the intelligent conversion module of the meal picking weight. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the external structure of the pallet machine in the present invention;

[0027] Figure 2 for Figure 1 Schematic diagram of the AA-direction cross-section structure;

[0028] Figure 3 for Figure 1 Schematic diagram of the cross-section structure in the middle BB direction;

[0029] Figure 4 This is a schematic diagram of the external structure of the intelligent dining table of the present invention (axial side);

[0030] Figure 5 It is a schematic diagram (perspective) of the position of the air dry-burning electric heating tube of the smart dining table in the present invention;

[0031] Figure 6 It is a schematic diagram of the installation structure of the weighing sensor of the intelligent dining selection table in the present invention (perspective);

[0032] Figure 7 for Figure 6 Left view (perspective);

[0033] Figure 8 This is a circuit principle block diagram of the plate heating area of ​​the smart dining selection table in the present invention. DETAILED DESCRIPTION

[0034] The present invention will be further described in detail below with reference to the accompanying drawings and through specific embodiments. The following embodiments are only illustrative and not restrictive, and the protection scope of the present invention cannot be limited thereto.

[0035] An intelligent metering and meal selection system comprises a tray machine, an intelligent meal selection table, a tray 1-10, a local database and a third-party database. The tray machine comprises a chassis 1-2, a lifting device and a pushing device. A tray outlet 1-3 is arranged in the middle of the chassis, a compartment door and a door handle 1-5 are arranged at the lower outer part of the chassis, a lifting device is installed on the bottom surface of the chassis, the lifting device comprises a lifting motor 1-13, a guide rail 1-12 and a lifting frame 1-11, the lifting frame guide is installed on the guide rail and driven by the lifting motor, a plurality of trays of the same specification are stacked on the lifting frame as meal plates, and a pushing device is arranged at a position in the chassis at the same level as the tray outlet.

[0036] The bottom of the chassis is provided with supporting feet 1-6.

[0037] The lifting device also includes a lead screw 1-16, a nut 1-14 and a slider 1-15. The bottom of the lead screw is coaxially fixed to the output shaft of the lifting motor through the nut, and a slider is coaxially mounted on the lead screw, and two lifting frames are connected to both sides of the slider.

[0038] A vertical plate 1-20 is vertically installed on the bottom surface of the chassis on both sides of the lifting frame, and a pushing device is installed on the two vertical plates. The pushing device includes a servo motor 1-7, a transmission wheel 1-19, a transmission belt 1-18, and a push rod 1-17. The servo motor drives the push rod through the transmission belt and the transmission wheel to horizontally push the pallet on the lifting frame to the pallet outlet.

[0039] A sensor bracket 1-8 is arranged on the pushing device, and position sensors 1-9 (infrared sensors) are arranged downward on both sides of the sensor bracket respectively for detecting the position of the tray.

[0040] Observation windows 1-4 are provided on the warehouse door for observing the number of pallets in the warehouse. The signal output end of the position sensor is connected to the signal input end of a PLC, and the signal input ends of the lifting motor and the servo motor are connected to the signal output end of the PLC. The PLC model is Delta DVP24ES200T.

[0041] The chassis of the pallet machine is also equipped with:

[0042] Touch screen 1-1, used for human-computer interaction, the touch screen is connected to PLC;

[0043] Power switch, used to power on or off the pallet machine and the internal PLC;

[0044] The card reader is used to read and identify employee ID cards. The card reader is connected to the PLC.

[0045] An RFID reader is installed at the tray exit and is connected to the PLC.

[0046] The tray has a radio frequency chip built into it.

[0047] The controller memory of the PLC is connected to the local database. The local database is connected to the WEB management platform for calling out the nutrition intake information of the employees in the local database.

[0048] The local database records employee identity information and updates employee nutritional information.

[0049] The above-mentioned intelligent dining table includes a dining table frame and a host 2-18. The dining table frame is an upper and lower structure, the upper part is a plate frame structure 2-1, and the lower part is a box structure 2-12. A plurality of vegetable bowl slots 2-5 and a host are arranged in the box structure. In this embodiment, two vegetable bowl slots are taken as an example, and a vegetable bowl 2-4 is placed in each vegetable bowl slot. A display 2-2 is installed at the upper position of the dining table frame corresponding to each vegetable bowl slot, and a weighing sensor 2-15 is installed at the bottom of each vegetable bowl slot to weigh the increase or decrease of the dishes in the vegetable bowl slot in real time. The signal input end of each display is connected to the signal output end of the controller of the host, and the signal output end of each weighing touch sensor is connected to the signal input end of the controller of the host. The controller can adopt a 51 single-chip microcomputer or an stm32 single-chip microcomputer and its peripheral circuits.

[0050] The box body is provided with a box door 2-11 for daily maintenance and component assembly after shutdown.

[0051] Air dry-burning electric heating pipes 2-13 and a hot air circulation system (unnumbered) are installed on the dining table frame to heat the vegetable bowl slot, wherein the air dry-burning electric heating pipes are located on the top of the plate frame structure, and the air dry-burning electric heating pipes heat the vegetable bowl slot on the box through pipelines.

[0052] An LED lighting lamp 2-14 is installed on the board frame structure above the vegetable basin trough through a cross arm 2-3.

[0053] The bottom of each weighing sensor is supported by a base plate 2-17, and the base plate is fixed in the vegetable basin groove by four sets of bolts and nuts 2-16. The height of the base plate can be properly adjusted by the bolts, thereby achieving fine adjustment of the position of the weighing module.

[0054] The box structure is provided with a dining table main switch 2-7, an LED light switch 2-8 and an air dry-burning electric heating tube switch 2-9, and a temperature display 2-10 is provided on the box.

[0055] An RFID reader is provided on the box next to the vegetable sink to read the radio frequency chip on the tray.

[0056] The dish information corresponding to each plate is input into the controller memory of the host and displayed through the corresponding display. Each display is installed above the intelligent meal selection table and corresponds to each dish basin. The data collection results of the weighing sensor are displayed in real time on the display through the host, and the weighing data and the nutritional component data corresponding to the weight of the meal are displayed.

[0057] A WEB management platform is connected to the local database to retrieve the nutritional intake information of employees in the local database. The signal output ends of the weighing sensor and the reading device for reading the above-mentioned RFID radio frequency chip are connected to the local database. The signal output ends of the weighing sensor and the reading device for reading the above-mentioned RFID radio frequency chip are simultaneously connected to a third-party database through a switch to obtain nutritional information and realize data interaction.

[0058] The meal selection method of this intelligent metering meal selection system is:

[0059] (1) The diner swipes his dining card or enters his work number on the tray machine. The system sends the person's information to the meal guidance platform for identity verification. After the identity verification is passed, the tray is automatically issued;

[0060] The diner swipes the card in the card reader swiping area of ​​the tray machine. The system reads the dining card chip information, obtains the corresponding personnel information through the dining card chip ID, and then verifies the legitimacy of the personnel by data interaction with the local database. After the verification, the system sends a control instruction to the lifting device, and the tray is moved to the tray moving platform through the lifting device. The system sends a control instruction to the RFID reading and writing device. When the diner takes out the tray, the tray machine PLC binds the personnel information with the tray's RFID information for the diner to take it by himself. At the same time, the PLC controls the lifting device to automatically lift the reduced tray to replenish it.

[0061] (2) The third-party database obtains the nutritional information of multiple vegetable bowls required by the employee and displays it on the display corresponding to each vegetable bowl;

[0062] (3) Place the tray in the smart food pickup station for identification, and then the controller of the smart food pickup station obtains employee identity information and nutritional information from the local database;

[0063] (4) The weight sensor of the smart village dining table displays the weighing data and the nutritional data corresponding to the meal weight in real time. After the tray moves out of the RFID reading area, the system automatically calculates the weight of the dish and pushes the dish information to the meal guidance platform to complete the meal collection process.

[0064] In step (1), if the meal tray is obtained by inputting the work number, it is completed through the touch screen; if the meal is not obtained by the employee, the tray machine will not identify and read the meal tray.

[0065] The nutritional information of step (2) includes but is not limited to the following items:

[0066] Dish information: Through the set dish slot number, the dish information and nutritional information corresponding to this dish slot of the meal are obtained from the meal guidance platform, including the dish name, nutrition label, preparation method, recommended amount, nutritional ingredient list and standard ingredient data, etc.;

[0067] Diner information: The system obtains user ID information through the tray, and obtains diner information from the meal guidance platform through this information;

[0068] Meal weight information: The weight information of the meal picked up by the diners is obtained through the weighing sensor device.

[0069] System external interface: The interface protocol adopts the Web Service mode, and the data return is encapsulated in JSON format. It mainly provides functions such as obtaining personnel information, obtaining dish information, obtaining recommended dish quantity, and transmitting meal collection records.

[0070] Although the embodiments and drawings of the present invention are disclosed for illustrative purposes, those skilled in the art will appreciate that various substitutions, changes and modifications are possible without departing from the spirit and scope of the present invention and the appended claims. Therefore, the scope of the present invention is not limited to the contents disclosed in the embodiments and drawings.

Claims

1. An intelligent metering and meal selection system, characterized in that: It includes a tray machine, an intelligent dining table, and a tray. The tray machine includes a chassis. The tray is equipped with a radio frequency chip. A tray outlet is provided in the middle of the chassis. A warehouse door is provided at the bottom of the chassis. An RFID reader is installed at the tray outlet. The reader is connected to a PLC. The signal input end of a lifting motor and a servo motor is connected to a signal output end of a PLC. The controller memory of the PLC is connected to a local database. The local database is connected to a WEB management platform. The intelligent dining table includes a dining table frame and a host. A plurality of vegetable basin slots are provided at the bottom of the dining table frame. A vegetable basin is placed in each vegetable basin slot. A weighing sensor is installed at the bottom of each vegetable basin slot. The signal output end of each weighing sensor is connected to the signal input end of the host. An RFID reader is provided on the box next to the vegetable basin slot. The signal output ends of the weighing sensor and the RFID reader for reading the radio frequency chip are connected to the local database. The signal output ends of the weighing sensor and the RFID reader for reading the radio frequency chip are simultaneously connected to a third-party database through a switch. A lifting device is installed on the bottom of the chassis of the pallet machine, and the lifting device includes a lifting motor, a guide rail and a lifting frame. The lifting frame is slidably installed on the guide rail and driven by the lifting motor. A plurality of pallets are stacked on the lifting frame, and a pushing device is arranged at a position in the chassis at the same level as the pallet outlet; The lifting device also includes a lead screw, a nut and a slider. The bottom of the lead screw is coaxially fixed to the output shaft of the lifting motor through the nut. A slider is coaxially mounted on the lead screw. Two sides of the slider are respectively connected to two lifting frames. A vertical plate is vertically installed on the bottom surface of the chassis on both sides of the lifting frame, and a pushing device is installed on the two vertical plates. The pushing device includes a servo motor, a transmission wheel, a transmission belt, and a push rod. The servo motor drives the push rod through the transmission belt and the transmission wheel to horizontally push the tray on the lifting frame to the tray outlet; The pushing device is provided with a sensor bracket, and position sensors are respectively provided downwardly on both sides of the sensor bracket; An observation window is provided on the warehouse door, a signal output end of the position sensor is connected to a signal input end of the PLC, and a signal input end of the lifting motor and a servo motor is connected to a signal output end of the PLC; The steps of the meal selection method of the intelligent metering meal selection system are: (1) The diner swipes his dining card or enters his work number on the tray machine. The system sends the person's information to the meal guidance platform for identity verification. After the identity verification is passed, the tray is automatically issued; The diner swipes the card in the card reader swiping area of ​​the tray machine. The system reads the dining card chip information, obtains the corresponding personnel information through the dining card chip ID, and then verifies the legitimacy of the personnel by data interaction with the local database. After the verification, the system sends a control command to the lifting device, and the lifting device moves the tray to the tray moving platform. The system sends a control command to the RFID reader. When the diner takes out the tray, the tray machine PLC binds the personnel information with the tray's RFID information for the diner to take by himself. At the same time, the PLC controls the lifting device to automatically lift the reduced tray to replenish it. (2) The third-party database obtains the nutritional information of the multiple dish bowls required by the diner and displays it on the display corresponding to each dish bowl; (3) Place the tray in the smart food pick-up station for identification, and then the controller of the smart food pick-up station obtains employee identity information and nutritional intake information from the local database; (4) The weighing sensor of the smart food pickup counter displays the weighing data and the nutritional data corresponding to the food pickup weight in real time. After the tray moves out of the RFID reading area, the system automatically calculates the weight of the food pickup and pushes the food pickup information to the meal guidance platform to complete the food pickup process.

2. The intelligent metering meal selection system according to claim 1 is characterized in that: A display is installed at a position on the upper part of the dining table frame corresponding to each of the vegetable bowl slots.

3. The intelligent metering meal selection system according to claim 1 is characterized in that: A touch screen and a power switch are also provided on the chassis of the pallet machine, and the touch screen is connected to the PLC.

4. The intelligent metering meal selection system according to claim 1 is characterized in that: An air dry-burning electric heating pipe and a hot air circulation system are installed on the dining table frame, wherein the air dry-burning electric heating pipe is located on the top of the plate frame structure, and the air dry-burning electric heating pipe heats and insulates the vegetable bowl slot on the box body through a pipeline.

Images