Description:FIELD OF THE INVENTION

[0001] The present invention relates to a multi-functional dining table that is capable of automatically detecting when a customer approaches and identify returning individuals to begin a personalized dining experience by allowing customers directly access a menu and place their orders.

BACKGROUND OF THE INVENTION

[0002] In recent years, dining experiences have evolved from simple food service to more engaging and interactive environments. Customers now expect greater convenience, faster service, and better control over their dining choices. Technological integration in restaurants has started to play a key role in meeting these demands. This allows customers to place orders directly, view menus digitally, and receive real-time updates about their meals.

[0003] Traditionally, the process of dining in a restaurant involves manual interaction with staff to place orders, make customizations, and request services. Paper-based menus are handed out, and the waiter takes down each order manually, which is then communicated to the kitchen. In many restaurants, grilling is either done in a centralized kitchen or by the customers themselves on fixed grills with minimal automation. Customers often wait without real-time information about their order status. These methods are time-consuming and may lead to miscommunication or delays.

[0004] Moreover, conventional grill tables offer limited flexibility and hygiene control. Customers need to manually oil grills, adjust heat, and turn skewers, which is be unsafe or result in uneven cooking. There is no automatic device to manage different food types like vegetarian and non-vegetarian items, increasing the risk of contamination. Feedback is typically collected at the end of the meal through forms or verbal interaction, which is inefficient and untimely. These limitations affect service quality and customer satisfaction.

[0005] US20210100358A1 discloses about an interactive restaurant table assembly includes a table that is position able in a restaurant. A plurality of proximity sensors is provided and each of the proximity sensors is coupled to the table. Each of the proximity sensors is turned on when a patron moves within a trigger distance of the proximity sensors. A plurality of touch screens is each of the touch screens is coupled to the table. Each of the touch screens displays menu of the restaurant thereby facilitating the patron to order from the menu. A transceiver is coupled to the table and the transceiver is in communication with each of the touch screens for receiving the patron's order from each of the touch screens. The transceiver is in wireless communication with a central computer system of the restaurant thereby facilitating restaurant employees to receive the patron's order.

[0006] US12239246B1 discloses Various versions of a customer-friendly smart dining table are disclosed for streamlining all processes and meeting customer needs and interests from food ordering to delivery directly on the table. The table comprises an interactive interface capable of receiving touch-based inputs, voice-based inputs, or both from patron(s) and displaying output(s) respectively. The interface may comprise a feedback module to provide automated assistance to the patron(s) in food selection and customization of the menu, an order management module to allow the patron(s) to place food orders, a payment module to enable the patron(s) to complete payments directly from the table, a power management module to manage power usage and ambient lighting, and a leisure module to interact with various entertainment options. The interface has antimicrobial properties to maintain the hygiene of the smart dining table.

[0007] Conventionally, many dining tables have developed for serving multiple purposes. However, the cited arts exhibit certain limitation, where the dining tables fails to offer comprehensive integration of interactive features with dynamic food preparation, real-time customer feedback, and automation. These limitations restrict user experience, reduce operational efficiency, and do not fully address modern dining expectations in terms of personalization and convenience

[0008] In order to overcome the aforementioned drawbacks, there exists a need in the art to develop a dining table that requires to enhance user experience by offering improved automation, hygiene, and personalized interaction. The developed table also needs to be capable of simplifying dining processes, improving service speed, and enabling real-time engagement with customers to meet evolving expectations in modern restaurant environments.

OBJECTS OF THE INVENTION

[0009] The principal object of the present invention is to overcome the disadvantages of the prior art.

[0010] An object of the present invention is to develop a dining table that is capable of automatically detecting customer presence and identifying to initiate personalized service and streamlining the dining operations, in view of offering a smooth and customized dining experience.

[0011] Another object of the present invention is to develop a dining table that is capable of enabling customers to directly view the menu, place their orders, and get real-time updates about their food from the table, which improves the speed and accuracy of service.

[0012] Another object of the present invention is to develop a dining table that is capable of managing grilling operations automatically, helping in making sure that food is grilled evenly and safely, without needing customers to manually handle.

[0013] Yet another object of the present invention is to develop a dining table, that is capable of allowing real-time feedback collection and monitoring of customer experience during the meal, so that any negative experiences or service issues can be detected early, in view of improving service quality and customer satisfaction.

[0014] The foregoing and other objects, features, and advantages of the present invention will become readily apparent upon further review of the following detailed description of the preferred embodiment as illustrated in the accompanying drawings.

SUMMARY OF THE INVENTION

[0015] The present invention relates to a multi-functional dining table that is capable of allowing customers to easily view the menu, place orders, and receive real-time updates directly at the table and managing grilling operations automatically, ensuring food is cooked evenly and safely and making the dining process more convenient and secure.

[0016] According to an embodiment of the present invention, a multi-functional dining table, comprising a table body having a surface configured to accommodate dining, an L-shaped link mounted on a side of the table body, the link housing a camera integrated with a PIR (Passive Infrared) sensor for detecting the presence of an approaching customer and recognizing returning customers, a holographic projection unit installed with the link to display a touch-sensitive interactive menu for customers to browse and place orders, a communication interface within an inbuilt microcontroller, configured to transmit order details to the kitchen inventory and notify serving staff for timely delivery of dishes or ingredients, a hollow housing structure installed at the center of the table, the lower section serving as a coal storage chamber incorporating a bucket conveyor for automatic coal transport towards a grilling section provided with an upper portion of the housing as needed, a plurality of vertical sliders provided with housing sides, supporting a barbecue grill structure, elevatable above the table surface, a rectangular hollow grill base holding charcoal, with integrated guiding rails supporting a movable rake for even charcoal distribution.

[0017] A real-time customer feedback monitoring module utilizing directional microphones is integrated with the table body to detect predefined keywords indicating customer sentiment, triggering the camera activation to analyze facial expressions upon detection of negative keywords, and sending alerts with actionable suggestions to restaurant management.

[0018] According to another embodiment of the present invention, the table further includes a motorized cascading slider with mechanical sleeves provided on the table body to rotate grill sticks ensuring even cooking, an electronic nose sensor integrated with the table body for detecting food grilling status, with an LED (Light Emitting Diode) array indicating readiness or need for further cooking, a plurality of vertically expandable barrier plates are provided with the housing on the grill surface, to partition vegetarian and non-vegetarian cooking areas based on order ratios.

[0019] An oiling module is installed on the structure, configured to move laterally across the grill structure, comprising multiple nozzles connected to an internal oil storage box to evenly spray cooking oil over food items during grilling, an extendable insulating sheet panel is integrated into the table body, configured to automatically slide into place to seal the housing cavity after grilling completion, absorbing and retaining heat for reheating food on its surface, the table body features

[0020] A planar upper surface configured to support dining items, at least four vertical support legs, each positioned proximate to a respective corner of the table body, and the legs are spaced apart to provide balanced weight distribution, a rotary serving tray is positioned on the table body surface for smooth rotational access to shared dishes.

[0021] A mesh network of tables to share real-time data including most ordered dishes and popular items, and to suggest recommended dishes based on shared data and customer preferences. The projection module displays an estimated wait time dynamically updated based on order queue and kitchen load, providing real-time feedback to the customer.

[0022] While the invention has been described and shown with particular reference to the preferred embodiment, it will be apparent that variations might be possible that would fall within the scope of the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS

[0023] These and other features, aspects, and advantages of the present invention will become better understood with regard to the following description, appended claims, and accompanying drawings where:
Figure 1 illustrates an isometric view of a multi-functional dining table.

DETAILED DESCRIPTION OF THE INVENTION

[0024] The following description includes the preferred best mode of one embodiment of the present invention. It will be clear from this description of the invention that the invention is not limited to these illustrated embodiments but that the invention also includes a variety of modifications and embodiments thereto. Therefore, the present description should be seen as illustrative and not limiting. While the invention is susceptible to various modifications and alternative constructions, it should be understood, that there is no intention to limit the invention to the specific form disclosed, but, on the contrary, the invention is to cover all modifications, alternative constructions, and equivalents falling within the spirit and scope of the invention as defined in the claims.

[0025] In any embodiment described herein, the open-ended terms "comprising," "comprises,” and the like (which are synonymous with "including," "having” and "characterized by") may be replaced by the respective partially closed phrases "consisting essentially of," consists essentially of," and the like or the respective closed phrases "consisting of," "consists of, the like.

[0026] As used herein, the singular forms “a,” “an,” and “the” designate both the singular and the plural, unless expressly stated to designate the singular only.

[0027] The present invention relates to multi-functional dining table that is capable of detecting when a customer arrives and identifying them to start a personalized service, making the dining process smoother and more efficient and collecting real-time feedback during the meal to monitor customer experience, allowing staff to respond early and improving overall service quality and customer satisfaction.

[0028] Referring to Figure 1, an isometric view of a multi-functional dining table is illustrated, comprising a table body 101 having a surface configured to accommodate dining, an L-shaped link 102 mounted on a side of the table body 101, the link 102 housing a camera 103, a holographic projection unit 104 installed with the link 102, a hollow housing structure 105 installed at the center of the table body 101, the lower section serving as a coal storage chamber 106 incorporating a bucket conveyor 107, a grilling section 120 provided with an upper portion of the housing as needed, a plurality of vertical sliders 108 provided with housing sides, supporting a barbecue grill structure 119, a rectangular hollow grill base 109 holding charcoal, with integrated guiding rails 110.

[0029] Figure 1 further illustrates a motorized cascading slider 111 with mechanical arm 112 provided on the table body 101, an electronic nose sensor 113 integrated with the table body 101, a plurality of vertically expandable barrier plates 114 are provided with the housing on the grill surface, an oiling module 115 is installed on the structure 105, configured to move laterally across the grill structure 119 comprising multiple nozzles 115a connected to an internal oil storage box 115b, an extendable insulating sheet panel 116 is integrated into the table body 101, a rotary serving tray 117 is positioned on the table body 101 surface, the housing is supported by legs 118.

[0030] The present includes a table body 101 having a surface configured to accommodate dining. The table body 101 mentioned herein has a flat rectangular top surface made from durable, heat-resistant material suitable for serving and eating food. The table body 101 features a planar upper surface configured to support dining items, at least four vertical support legs 118, each positioned proximate to a respective corner of the table body 101, and the legs 118 are spaced apart to provide balanced weight distribution.

[0031] The table body 101 is supported by a strong frame with a hollow central housing integrated into its body 101, allowing space for internal structure without affecting surface usability. The table body 101 design allows for smooth integration of additional features without affecting the primary use as a dining table body 101. The surface is easy to clean and durable, making suitable for regular use in both homes and restaurants.

[0032] In an embodiment of the present invention a user is required to access and presses a push button arranged on the body 101 to activate the dining table for associated processes of the dining table. The push button when pressed by the user, closes an electrical circuit and allows currents to flow for powering an associated microcontroller of the dining table for operating of all the linked components for performing their respective functions upon actuation. The microcontroller, mentioned herein, is preferably an Arduino microcontroller. The Arduino microcontroller used herein controls the overall functionality of the linked components.

[0033] An L-shaped link 102 mounted on a side of the table body 101. The L-shaped link 102 mentioned herein is a rigid, angled structural component securely mounted to the side of the table body 101. The link 102 consists of a vertical arm extending upward from the table’s edge and a horizontal arm projecting outward.

[0034] The link 102 houses a camera 103 integrated with a PIR (Passive Infrared) sensor, designed to detect the presence of an approaching customer and identify returning customers through facial recognition. The camera 103 mentioned herein is integrated with a processor encrypted with an artificial intelligence protocol, working together to capture and process multiple images of the surrounding for detecting approaching customer.

[0035] Upon actuation, the camera 103 captures images which are then fed to the processor. The artificial intelligence protocol operates by following predefined instructions to autonomously analyze and interpret the captured data to determine approaching customer. Initially, data is collected and stored in a database, enabling the artificial intelligence protocol to learn and improve its understanding through iterative training. This continuous learning allows the protocol to refine its decision-making capabilities over time, optimizing performance in detecting approaching customer. The protocol periodically undergoes evaluation and updates to maintain accuracy and effectiveness, ensuring reliable analysis of the images captured by the imaging unit.

[0036] The PIR (Passive Infrared) sensor operates by detecting infrared radiation naturally emitted by objects, particularly customer bodies. The sensor contains two pyroelectric elements that sense changes in infrared levels when the customer enters the detection zone. The sensor compares signals from both elements to detect motion based on differential heat patterns. When a customer approaches the table body 101, the sensor detects this movement and sends a signal to the microcontroller. The microcontroller combines the data from the camera 103 and from the PIR (Passive Infrared) sensor. This enables to begin facial recognition processing to identify returning customers. The camera 103 deactivates immediately after facial recognition to preserve customer privacy.

[0037] A holographic projection unit 104 integrated with the link 102, configured to display a touch-sensitive interactive menu that allows customers to browse options and place orders directly. The holographic projection unit 104 functions by emitting light from laser or LED sources, which is then manipulated using optical elements such as lenses, diffraction gratings, and spatial light modulators (SLMs) to form a three-dimensional image of the menu in space. The light waves are controlled to interfere in a specific way that reconstructs the visual representation of a virtual interface. This process enables the creation of high-resolution, floating images viewable from multiple angles without the need for physical screens. The unit is precisely aligned and calibrated to maintain image clarity, brightness, and stability, allowing dynamic projection of interactive visual content above surfaces

[0038] The touch-sensitive interactive menu presents various food categories, item images, prices, and customization options in a clear, user-friendly layout. The customers interact with the menu by moving their hands within the projection area. As the user navigates through the menu, visual cues such as highlighting or animations confirm each choice. The projection module presents an estimated wait time, which is continuously updated in real-time based on the current order queue and the workload in the kitchen. This ensures that customers receive accurate and timely feedback regarding how long their food will take to be prepared. By reflecting live kitchen activity, the module keeps customers informed and helps manage expectations during busy or high-demand periods without requiring manual updates.

[0039] For example, when the customer approaches the table body 101, the holographic menu activates and displays various food categories such as starters, main course, and desserts. The customer waves their hand to browse and pauses over “Grilled Paneer Tikka” under the starters section. The holographic projection unit 104 highlights the dish and displays options like spice level and portion size. After confirming the selection, the order is instantly sent to the kitchen for preparation.

[0040] A user interface is installed in a computing unit linked with a microcontroller inbuilt in the dining table to wirelessly connect dining table with computing unit by means of a communication module. The user interface enables the user to provide input to transmit order details to the kitchen inventory and notify serving staff for timely delivery of dishes or ingredients. The communication module includes, but not limited to Wi-Fi (Wireless Fidelity) module, Bluetooth module, GSM (Global System for Mobile Communication) module.

[0041] The Wi-Fi module contains transmitters and receivers that use radio frequency signals to transmit data wirelessly to the microcontroller. The wireless module typically includes components such as antennas, amplifiers, and processors to facilitate communication and further connected to networks such as Wi-Fi, Bluetooth, or cellular networks, allowing dining tables to exchange information over short or long distances for communication of wireless commands to facilitate operations of the dining table.

[0042] For example, when the customer places an order for “Butter Chicken” and “Garlic Naan” using the interactive menu, the communication interface within the microcontroller instantly transmits the order details to the kitchen inventory to check ingredient availability. Simultaneously, it sends a notification to the serving staff, ensuring they are prepared for timely delivery once the food is ready, streamlining the entire ordering and serving process efficiently.

[0043] A hollow housing structure 105 installed at the center of the table body 101. This structure 105 is vertically aligned and securely fixed to the table body 101 frame, allowing to accommodate internal components without interfering with the dining surface. The outer walls of the housing are rigid and heat-resistant, while the inner section is designed to support grilling or storage functions. The position ensures symmetrical access from all sides of the table body 101, enabling equal use by multiple users.

[0044] The lower section functions as a coal storage chamber 106, equipped with a bucket conveyor 107 that automatically transports coal to the grilling section 120 located in the upper portion of the housing whenever required. The microcontroller actuates the bucket conveyor 107 upon receiving a grilling request. The bucket conveyor 107 operates through a motor-driven chain loop fitted with evenly spaced buckets, designed to transport coal vertically from the lower storage chamber 106 to the upper grilling section 120. The motor rotates the drive sprocket, causing the chain and buckets to move upward along a guided path. As the buckets pass through the coal storage area, they collect coal and carry it upward. At the top, the conveyor 107 tips the buckets over a discharge point, where gravity assists in depositing the coal into the grilling section 120.

[0045] A plurality of vertical sliders 108 positioned along the sides of the housing, configured to support a barbecue grill structure 119 that is raised above the table body 101 surface. The vertical sliders 108 function using a lead screw driven by a motorized actuator mounted along the sides of the central housing. When the microcontroller sends a signal, the motor rotates the lead screw, which is threaded through a nut fixed to the sliders 108 holding the barbecue grill. As the screw turns, the nut moves vertically along the threads, raising or lowering the grill structure 119 accordingly. The guide rails 110 ensure smooth, straight movement, preventing lateral shift.

[0046] A rectangular hollow grill base 109 designed to hold charcoal, incorporating built-in guiding rails 110 that support a movable rake for uniform distribution of charcoal. The grill base 109 serves as a container for holding burning charcoal that is integrated along the inner sides of the base 109 are a pair of guiding rails 110 that run parallel to each other. These rails 110 support a manually or motor-driven rake that moves back and forth across the charcoal bed. As the rake travels along the rails 110, evenly spreads the charcoal within the grill base 109, ensuring consistent heat distribution across the grilling surface for efficient cooking

[0047] In a preferred embodiment of the present invention, the pair of guiding rails 110 supporting a motorized rake. The motorized rake operates within the rectangular hollow grill base 109 to ensure even charcoal distribution. The rake is connected to a motor-driven belt controlled by the microcontroller. When activated, the motor rotates the belt or gear, causing the rake to move laterally across the grill base 109. This back-and-forth motion spreads the charcoal evenly, maintaining a consistent heat zone for efficient grilling.

[0048] An oiling module 115 is mounted on the structure 105 and is designed to move horizontally across the grill assembly. The oiling module 115 includes multiple spray nozzles 115a that are connected to an internal oil storage box 115b.

[0049] This setup allows the module to evenly distribute cooking oil over food items during the grilling process, ensuring consistent coating and preventing sticking or uneven cooking. When the microcontroller activates the oiling module 115, a pump draws oil from the oil storage and delivers to the nozzles 115a at a controlled pressure. As the module moves laterally across the grill structure 119, the nozzles 115a uniformly spray a fine mist of oil over the food items. The nozzles 115a are arranged at specific intervals to provide even coverage across the entire grilling area. The nozzle body 101 typically includes an internal check valve to prevent backflow and clogging. The spray angle and flow rate are calibrated to ensure optimal oil distribution with minimal waste, enhancing cooking efficiency.

[0050] A plurality of vertically expandable barrier plates 114 are provided with the housing on the grill surface, to partition vegetarian and non-vegetarian cooking areas based on order ratios. These expandable barrier plates 114 mentioned herein works by a motorized drawer arrangement comprising two plates 114 connected via a slider. The slider includes a sliding rail fixed onto the grill frame and a motorized slid able member coupled to the rail. The slid able member is further connected to an opening formed on the grill frame and linked to a motor that enables bi-directional movement. Upon receiving a signal from the microcontroller based on the type and volume of orders placed (e.g., vegetarian vs. non-vegetarian), the motor actuates the slid able member, adjusting the position of the barrier plates 114 to expand or retract the partitioned cooking zones.

[0051] For example, if a group places an order with 70% vegetarian and 30% non-vegetarian dishes, the microcontroller calculates the ratio and sends a signal to the motor. The motor then actuates the slidable member, which adjusts the barrier plates 114 accordingly. As a result, a larger section of the grill is allocated for vegetarian cooking, while a smaller section is reserved for non-vegetarian items, maintaining hygiene and preventing cross-contamination during grilling.

[0052] A motorized cascading slider 111 with mechanical arm 112 sleeves provided on the table body 101 to rotate grill sticks ensuring even cooking. The microcontroller activates the motorized cascading slider 111 by sending an electrical signal to the motor unit. The slider 111 is integrated into the table body 101 and features a motor-driven track along which several mechanical arm 112 sleeves are mounted. These sleeves securely hold the grill sticks and are designed to rotate them as the slider 111 moves. As the motor runs, the sleeves are powered to rotate the grill sticks continuously, allowing food to cook evenly on all sides without manual turning.

[0053] An electronic nose sensor 113 integrated with the table body 101 for detecting food grilling status. The microcontroller activates the electronic nose sensor 113 at predefined intervals during the grilling process to monitor food status. The electronic nose comprises an array of gas sensors that detect volatile organic compounds (VOCs) and aroma molecules released during grilling. These sensors respond to specific chemical profiles associated with different stages of cooking, such as raw, partially cooked, and fully grilled. The sensor data is analyzed to determine the doneness level of the food. The electronic nose sensor 113 detects volatile cooking compounds to precisely determine doneness, triggering LED indicators for customer notification

[0054] The LED (Light Emitting Diode) installed on the body 101 indicating readiness or need for further cooking. The microcontroller actuates the LED array based on input received from the electronic nose sensor 113 regarding food grilling status. The LED array consists of multiple light-emitting diodes arranged in a linear or circular pattern and controlled through a driver circuit. Each LED corresponds to a specific cooking stage such as raw, medium, or done. Upon receiving sensor data, the microcontroller processes the information and activates the appropriate LEDs by sending current through selected channels. The color and pattern of illumination (e.g., red for raw, yellow for medium, green for ready) visually indicate the grilling progress to the user in real time.

[0055] For example, while grilling paneer tikka, the electronic nose sensor 113 detects the release of specific aroma compounds indicating the cooking stage. When the food is partially cooked, the microcontroller triggers the yellow LED on the array. As the aroma compounds match the profile for fully grilled paneer, the green LED lights up, signaling that the dish is ready to serve. This helps users monitor doneness without needing to manually check the food.

[0056] A rotary serving tray 117 is positioned on the table body 101 surface for smooth rotational access to shared dishes. This enhances convenience during group dining by enabling all guests to reach food items without needing to stretch or pass dishes around. The microcontroller actuates the rotary serving tray 117 by sending a control signal to a low-speed motor mounted beneath the tray 117. The tray 117 is attached by a ball-bearing base for smooth, stable movement The motor is powered through the microcontroller that regulates voltage and current for smooth operation. As the motor turns the shaft, the tray 117 spins evenly, allowing users to access shared dishes without manual turning, thus maintaining balance and convenience during dining.

[0057] In an embodiment of the present invention, the user access through a touch interactive display panel is arranged on the table body 101 for allowing the user to control the movement of the tray. The touch interactive display panel as mentioned herein is typically an LCD (Liquid Crystal Display) screen that presents output in a visible form. The screen is equipped with touch-sensitive technology, allowing the user to interact directly with the display using their fingers. A touch controller IC (Integrated Circuit) is responsible for processing the analog signals generated when the user inputs details regarding controlling the movement of the tray. A touch controller is typically connected to the microcontroller through various interfaces which may include but are not limited to SPI (Serial Peripheral Interface) or I2C (Inter-Integrated Circuit).

[0058] An extendable insulating sheet panel 116 is integrated into the table body 101, configured to automatically slide into place to seal the housing cavity after grilling completion, absorbing and retaining heat for reheating food on its surface. The extendable insulating sheet panel 116 mentioned herein works by the motorized drawer arrangement that works in similar manner that is discussed above allowing to be used for reheating or keeping food warm on its upper surface without additional energy input.

[0059] The microcontroller is additionally connected to a mesh network that links multiple tables within the dining area, allowing them to exchange real-time data. This network facilitates the sharing of information such as the most frequently ordered dishes and currently popular menu items across all connected tables. Using this shared data, along with individual customer preferences, the microcontroller generates personalized dish recommendations for each user. This offers relevant suggestions based on collective customer behavior, improving order efficiency and customer satisfaction while also helping the restaurant identify trending dishes and manage kitchen operations more effectively.

[0060] A real-time customer feedback monitoring module is embedded within the table body 101 and uses directional microphones to listen for predefined keywords that reflect customer sentiment. The directional microphone mentioned herein capture sound specifically from the user’s seating area while minimizing background noise from surrounding tables. The microphone uses a focused pickup pattern to isolate voices and enhance speech clarity.

[0061] The microphone converts acoustic signals into electrical signals, which are then transmitted to the digital signal processor (DSP). The DSP, connected to the microcontroller, analyzes the frequency and amplitude of the signals to detect predefined keywords. When negative keywords are detected, the microcontroller triggers the activation of the camera 103 to capture and analyze facial expressions for further confirmation. Based on this analysis, alerts containing actionable suggestions are automatically sent to the restaurant management to enable timely response and service improvement.

[0062] The present invention works best in the following manner, where the table body 101 as disclosed in the invention features planar upper surface configured to support dining items and four vertical support legs 118 positioned near each corner to ensure balanced weight distribution. The L-shaped link 102 mounted on the side of the table body 101 houses the camera 103 integrated with the PIR sensor for detecting the presence of the approaching customer and recognizing returning customers. The link 102 also supports the holographic projection unit 104, which displays the touch-sensitive interactive menu allowing the customer to browse and place orders. The communication interface embedded within the inbuilt microcontroller transmits the order details to the kitchen inventory and notifies the serving staff for timely delivery of dishes or ingredients. The hollow housing structure 105 installed at the center of the table body 101 consists of the lower section serving as the coal storage chamber 106 and includes the bucket conveyor 107 for automatic coal transport toward the grilling section 120 on the upper portion. The vertical sliders 108 provided on the sides of the housing support the grill structure 119 and allow elevation above the table body 101 surface. The rectangular hollow grill base 109 holds the charcoal and is fitted with guiding rails 110 for the movable rake ensuring even charcoal distribution. The motorized cascading slider 111 with mechanical arm 112 sleeves rotates grill sticks for uniform cooking. The electronic nose sensor 113 detects grilling status, and the LED array signals readiness. Additional features include the rotary serving tray 117, directional microphones for sentiment detection, extendable insulating sheet, oiling module 115, and mesh-networked microcontrollers for data-driven recommendations and feedback monitoring.

[0063] Although the field of the invention has been described herein with limited reference to specific embodiments, this description is not meant to be construed in a limiting sense. Various modifications of the disclosed embodiments, as well as alternate embodiments of the invention, will become apparent to persons skilled in the art upon reference to the description of the invention. , Claims:1) A multi-functional dining table, comprising:

i) a table body 101, having a surface configured to accommodate dining;
ii) an L-shaped link 102 mounted on a side of the table body 101, the link 102 housing a camera 103 integrated with a PIR (Passive Infrared) sensor for detecting the presence of an approaching customer and recognizing returning customers;
iii) a holographic projection unit 104 installed with the link 102 to display a touch-sensitive interactive menu for customers to browse and place orders;
iv) a communication interface within an inbuilt microcontroller, configured to transmit order details to the kitchen inventory and notify serving staff for timely delivery of dishes or ingredients;
v) a hollow housing structure 105 installed at the center of the table body 101, the lower section serving as a coal storage chamber 106 incorporating a bucket conveyor 107 for automatic coal transport towards a grilling section 120 provided with an upper portion of the housing as needed;
vi) a plurality of vertical sliders 108 provided with housing sides, supporting a barbecue grill structure 119, elevatable above the table surface;
vii) a rectangular hollow grill base 109 holding charcoal, with integrated guiding rails 110 supporting a movable rake for even charcoal distribution;
viii) a motorized cascading slider 111 with mechanical arm 112 sleeves provided on the table body 101 to rotate grill sticks ensuring even cooking; and
ix) an electronic nose sensor 113 integrated with the table body 101 for detecting food grilling status, with an LED (Light Emitting Diode) array indicating readiness or need for further cooking.

2) The dining table as claimed in claim 1, wherein the microcontroller is further connected to a mesh network of tables to share real-time data including most ordered dishes and popular items, and to suggest recommended dishes based on shared data and customer preferences.

3) The dining table as claimed in claim 1, wherein the projection module displays an estimated wait time dynamically updated based on order queue and kitchen load, providing real-time feedback to the customer.

4) The dining table as claimed in claim 1, wherein a plurality of vertically expandable barrier plates 114 are provided with the housing on the grill surface, dynamically controlled by the microcontroller to partition vegetarian and non-vegetarian cooking areas based on order ratios.

5) The dining table as claimed in claim 1, wherein an oiling module 115 is installed on the structure 105, configured to move laterally across the grill structure 119, comprising multiple nozzles 115a connected to an internal oil storage box 115b to evenly spray cooking oil over food items during grilling.

The dining table as claimed in claim 1, wherein an extendable insulating sheet panel 116 is integrated into the table body 101, configured to automatically slide into place to seal the housing cavity after grilling completion, absorbing and retaining heat for reheating food on its surface.

6) The dining table as claimed in claim 1, wherein the camera 103 deactivates immediately after facial recognition to preserve customer privacy.

7) The dining table as claimed in claim 1, wherein a rotary serving tray 117 is positioned on the table body 101 surface for smooth rotational access to shared dishes.

8) The dining table as claimed in claim 1, wherein a real-time customer feedback monitoring module utilizing directional microphones is integrated with the table body 101 to detect predefined keywords indicating customer sentiment, triggering the camera 103 activation to analyze facial expressions upon detection of negative keywords, and sending alerts with actionable suggestions to restaurant management.

9) The dining table as claimed in claim 1, wherein the electronic nose sensor 113 detects volatile cooking compounds to precisely determine doneness, triggering LED indicators for customer notification.

10) The dining table as claimed in claim 1, wherein the table body 101 features a planar upper surface configured to support dining items, at least four vertical support legs 118, each positioned proximate to a respective corner of the table body 101, and the legs 118 are spaced apart to provide balanced weight distribution.