Patent Publication Number: US-2022218137-A1

Title: Smart container with interactive, colored lights

Description:
CROSS-REFERENCE TO RELATED APPLICATION(S) 
     This application claims the priority benefit, under 35 U.S.C. § 119(e), of U.S. Application No. 62/840,476, entitled “Smart Water Bottle with Interactive, Colored Lights,” filed on Apr. 30, 2019, the disclosure of which is incorporated herein by reference in its entirety. 
    
    
     BACKGROUND 
     Fitness trackers, such as smartwatches and fitness bracelets, are examples of devices that can monitor a user&#39;s physical activity throughout the day. These devices are developed to help users monitor their physical health and well-being while also allowing users to tailor the devices based on their preferences. Typically, these fitness trackers are connected to the user&#39;s smartphone, tablet, or another device such that the user can monitor his or her progress in an application. 
     While these smart devices can track the wearer&#39;s physical activities to better inform the wearer of his or her activity levels, there are still not many devices that can inform the wearer on other important aspects, for example, nutrition intake or hydration levels. Proper hydration is essential, but some studies show that over 75% of people have poor water consumption habits and fewer than 5% regularly consume enough water. Encouraging proper hydration can improve health and quality of life and promote healthy habits. Additionally, monitoring food intake or pill intake can help a user follow and track his or her nutritional or medical guidelines. Further, well-designed and well-built containers are more sustainable than single use containers. 
     SUMMARY 
     Embodiments of the present technology include a container assembly comprising a container, a load cell, an accelerometer, a processor, a colored light source, and a diffuser. The load cell is operably coupled to the container and measures a weight of contents of the container, which may hold liquid, pills, food, or another consumable substance. The accelerometer is operably coupled to the container and measures acceleration of the container. The processor is operably coupled to the load cell and the accelerometer and prompts the load cell to measure the weight of the contents of the container in response to the acceleration measured by the accelerometer. For instance, the processor may cause the load cell to measure the weight in response to an indication from the accelerometer that the container is upright. 
     The processor also determines a change in the weight of the contents of the container based on the weight of the contents of the container measured by the load cell. The colored light source is operably coupled to the processor and emits colored light. This colored light indicates the change in the weight of the contents of the container and/or prompts a user to consume at least a portion of the contents of the container. In some cases, the colored light source may comprise one or more colored light-emitting diodes (LEDs), which can be configured to emit unique illumination patterns. 
     The diffuser is in optical communication with the colored light source and diffuses the colored light over an area viewed by the user. The diffuser may be detachably or permanently attached to the container. It may contains a pair of concentric layers. 
     The load cell, the accelerometer, the processor, and the colored light source can form an assembly detachably coupled to the container. This assembly may also include a lower plate, an elastic membrane bonded to the lower plate, and a housing comprising an upper plate and a window disposed in front of the colored light source. The load cell can be held within the assembly by compressing the elastic membrane between the puck housing and the lower plate. This assembly may be water-tight or water-resistant. 
     The container assembly may also include a speaker configured to emit unique sound notifications, an actuator configured to emit unique vibration patterns, and/or an antenna operably coupled to the processor and configured to transmit data to, receive user preferences from, and/or receive commands from an external device. And the container assembly may include a radio-frequency identification (RFID) or near-field communication (NFC) tag, disposed in or on the container assembly, to communicate with an external device. 
     Another embodiment includes a method of tracking consumption by a user of a substance held in a container. This method includes measuring an acceleration of the container with an accelerometer coupled to the container and determining that the container is upright based on the acceleration. In response to determining that the container is upright, a weight sensor (e.g., a load cell) performs a measurement of a weight of the substance in the container with a load cell. A processor or other controller determines a change in the weight of the substance in the container based on the measurement of the weight of the substance. And a colored light source emits colored light via a diffuser coupled to a bottom of the container in response to the change in the weight of the substance in the container. This colored light source can be a water resistant or water-tight assembly that is detachably coupled to and can be removed from the container. 
     Yet another embodiment includes a bottle assembly comprising a container that may hold liquid, food, medication, or another consumable. The bottle assembly includes a ring-shaped translucent cap that is detachably coupled to a base of the container and may include a diffusive inner ring concentric with a translucent outer ring. The ring-shaped translucent cap forms a cavity at the base of the container and a cylindrical water-resistant or water-tight assembly detachably fit within the cavity. 
     The cylindrical water-resistant or water-tight assembly includes a load cell, an accelerometer, a processor, and colored lights. In operation, the load cell measures a weight of contents of the container, and the accelerometer measures acceleration of the container. The processor, which is operably coupled to the load cell and the accelerometer, prompts the load cell to measure the weight of the contents of the container in response to the acceleration measured by the accelerometer. The processor also determines a change in the weight of the contents of the container based on the weight of the contents of the container measured by the load cell. 
     The colored lights are operably coupled to the processor and disposed circumferentially about the cylindrical water-resistant or water-tight assembly. They emit colored light through the ring-shaped translucent cap in response to the change in the weight of the contents of the container. In some cases, the ring-shaped translucent cap diffuses the colored light emitted by the plurality of colored lights. 
     The cylindrical water-resistant or water-tight assembly may also include a base plate to support the load cell, a printed circuit board (PCB) to support the processor and the colored lights, and a housing fitting over the printed circuit board. The housing has transparent windows to transmit the colored light from the colored lights. And an elastic membrane compressed between the base plate and the housing creates a water-tight or water-resistant seal around the PCB and the load cell. The cylindrical water-resistant or water-tight assembly may also include a mid-plate held in place over the load cell and against the base plate by the elastic membrane. And it can include an RFID or NFC tag to communicate with an external device. 
     All combinations of the foregoing concepts and additional concepts discussed in greater detail below (provided such concepts are not mutually inconsistent) are contemplated as being part of the inventive subject matter disclosed herein. In particular, all combinations of claimed subject matter appearing at the end of this disclosure are contemplated as being part of the inventive subject matter disclosed herein. Terminology explicitly employed herein that also may appear in any disclosure incorporated by reference should be accorded a meaning most consistent with the particular concepts disclosed herein. 
    
    
     
       BRIEF DESCRIPTIONS OF THE DRAWINGS 
       The skilled artisan will understand that the drawings primarily are for illustrative purposes and are not intended to limit the scope of the inventive subject matter described herein. The drawings are not necessarily to scale; in some instances, various aspects of the inventive subject matter disclosed herein may be shown exaggerated or enlarged in the drawings to facilitate an understanding of different features. In the drawings, like reference characters generally refer to like features (e.g., functionally and/or structurally similar elements). 
         FIG. 1A  shows a smart container with a flash cap and removable light puck. 
         FIG. 1B  shows the smart container of  FIG. 1A  with the light puck inserted and turned on. 
         FIG. 1C  shows a 21 oz smart water bottle with a stainless-steel double-wall vacuum insulated body with a chug lid (right) or straw lid (left). 
         FIG. 1D  shows a 17 oz smart water bottle with a stainless-steel double-wall vacuum insulated body with a chug lid (left) or straw lid (right). 
         FIG. 2A  shows the attachment of the light puck to the flash cap and smart container. 
         FIG. 2B  shows the attachment of the flash cap and retainer ring to the smart container. 
         FIG. 2C  shows a perspective view of the flash cap of the smart container. 
         FIG. 2D  shows a photograph of the flash cap of the smart container. 
         FIG. 3A  shows a cross-section view of the light puck and the illumination from a light-emitting diode (LED) in the light puck. 
         FIG. 3B  is a close-up of  FIG. 3A  showing the illumination from a light-emitting diode (LED) in the light puck. 
         FIG. 3C  shows a perspective view of the light puck and charger. 
         FIG. 3D  shows a top view of the light puck with a charge part cover. 
         FIG. 3E  shows a cross-section view of the light puck. 
         FIG. 3F  shows an exploded view of the light puck. 
         FIG. 3G  shows a top (left) and underside (right) view of the printed circuit board and selected electronic components of the light puck. 
         FIG. 4A  shows the illuminated light puck and flash cap without a diffusion additive. 
         FIG. 4B  shows the illuminated light puck and flash cap with a diffusion additive. 
         FIG. 5A  shows the base plate of the light puck. 
         FIG. 5B  shows the attachment of the load cell and upper plate assembly to the base plate of the light puck. 
         FIG. 5C  shows the attachment of the silicone membrane to the upper plate assembly of the light puck. 
         FIG. 5D  shows the attachment of the load cell and upper plate assembly to the lower plate of the light puck. 
         FIG. 5E  shows the attachment of the puck housing to the upper plate of the light puck. 
         FIG. 5F  shows the assembled light puck. 
         FIG. 6A  shows a smart pill container. 
         FIG. 6B  shows the pill container detached from the light puck of a smart pill container. 
         FIG. 6C  shows a light puck for use in a smart pill container. 
         FIG. 7A  shows a smart food container. 
         FIG. 7B  shows the food container detached from the light puck of a smart food container. 
         FIG. 7C  shows a light puck for use in a smart food container. 
     
    
    
     DETAILED DESCRIPTION 
     The present disclosure describes embodiments of a smart container. The smart container contains multicolored lighting that can be used to convey a variety of messages to a user in an unobtrusive manner. The smart container may also contain a speaker to send audio messages or motor or actuator to send vibrational messages to the user. 
     The smart container may be a water bottle, a tumbler, a pill container, or a food container. The messages conveyed to the user can be simple or sophisticated, customizable or predefined, and can indicate information about contents or status of the smart container. The smart container may be plastic, glass, and/or metal. The container may be a variety of sizes including, but not limited to, 2, 5, 8, 10, 12, 14, 16, 17, 18, 21, 22, 24, 28, 32, 40, 64, or 128 ounces. When the container is a smart water bottle, the messages can indicate the user&#39;s progress toward a hydration goal or the smart water bottle status. When the container is a smart pill container, the messages can prompt the user to take a pill from the container or notify the user that a pill was taken from the container. When the container is a smart food container, the smart container can indicate information to the user regarding the consumption of the contents in the container or if the contents have expired. 
     The smart container may also be equipped with a Bluetooth, Wi-Fi, or cellular antenna, allowing the user to send and receive custom messages to and from other wireless devices. The smart container may also have RFID or NFC capabilities to track the user&#39;s preferences, the smart container&#39;s location, and/or to exchange information between the smart container and other devices. Users may program or control the messages conveyed or received by the smart container through an application on their phone, tablet, or other device wirelessly connected to the smart container(s). Users can also send messages to each other via their smart containers, with the messages or displays optionally customized for each sender and/or recipient. Non-users can also send messages to the smart container, with the messages or displays optionally customized for each sender and/or recipient. 
     The smart container includes a processor that process messages and actuates and manages power consumption by the multicolored lighting. The processor controls battery draw, increasing power efficiency. The processor may also manage the color intensity and/or pulse frequency of light emitted by each colored light, since some colors may appear brighter than others, to provide desired glow sequences. The processor and electronics for the smart container are housed in a small rechargeable and removable puck that mechanically attaches to the smart container. The puck is interchangeable between smart containers and can be removed from the smart container for cleaning or replacement. The puck has an outer silicone membrane, which creates a seal when the puck is properly inserted into and secured to the base of a container. The seal may be water-tight or water-resistant and/or air-tight or air-permeable. 
     The colored lights can be arranged facing radially outward in the puck to produce smooth and uniform illumination from the bottom of the smart container. Light from the colored lights, which may include one or more LEDs, may diffuse through the housing to provide uniform illumination when the puck is assembled and coupled to the smart container. The multi-colored lights allow for a greater variety of messages and glow sequences to be conveyed to the user. For example, the lights may notify the user of the battery level of the smart container or of the status of the contents in the container. 
     Inventive smart containers have a number of advantages compared to existing smart water bottles. For instance, because the electronics of the smart container are housed in a water-tight puck, the user can clean the smart container without damaging the electronics. Additionally, because the puck is interchangeable between smart containers, the user can use one puck with a variety of containers based on user preference for container. The puck is rechargeable and can also be disassembled, allowing for the internal components to be re-used, repaired, or replaced, reducing waste. 
     Another advantage of inventive smart containers is the ability of the puck to take accurate measurements of either a liquid or solid substance in the container. For instance, the puck can be used to measure the weight of a liquid in a smart water bottle or the weight of pills in a smart pill container. In addition, the processor in the puck can record measurements with enough frequency to determine periods of inactivity of the smart container. By sensing periods of inactivity, the smart container may provide a warning to the user indicating the contents in the container are expired or should be replaced. The smart container may also record a user&#39;s progress and can be paired with another fitness tracker or fitness monitoring system for comprehensive nutritional and/or medical monitoring. 
     Another advantage of the inventive smart container is the message sender or receiver&#39;s ability to program the messages conveyed by the smart water bottle through the use of multi-colored lights, audio, or vibrations. For example, the multi-colored lights can be used to indicate that the user should drink from the smart water bottle. Alternatively, the multi-colored lights could indicate what pill the user should take (e.g., blue light for a blue pill or red light for a red pill). The smart container may also be equipped with a Bluetooth, Wi-Fi or cellular antenna allowing the user to send and receive custom messages from the user&#39;s phone, for example. The smart container can also convey messages from non-users, for example a health care professional prompting the user to take a pill from the smart container. 
     Smart Liquid Container 
       FIGS. 1A and 1B  show a bottle assembly  100  that functions as a smart bottle to measure the weight of a liquid in a container  102  and to prompt to a user to drink a liquid from the container  102 . The bottle assembly  100  contains a removable lid  101 , a ring-shaped or annular flash cap  103  that is attached to the container  102 , and a removable light puck  104  as shown in  FIGS. 1A and 1B . The container  102  forms a cavity that can hold a liquid, such as water. The cavity may also be insulated to keep the liquid hot or cold. The container  102  and lid  101  can be made of plastic, glass, and/or metal. The plastic, glass, or metal may also be textured, patterned, colored, opaque, transparent, or translucent. The container  102  may come in multiple sizes, including, but not limited to, 12, 14, 16, 18, 22, 24, 28, 32, 40, 64, or 128 ounces. 
       FIGS. 1C and 1D  show different sizes of a smart bottle  100 .  FIG. 1C  shows a 21 oz container  105  and  FIG. 1D  shows a 17 oz container  106 . The containers  105  and  106  are stainless-steel double-wall vacuum insulated.  FIGS. 1C and 1D  also show different removable lids  101  of a smart bottle  100 . The removable lid  101  may screw or snap to the container  102  to prevent the liquid from leaking out of the container  102 . For example, the removable lid  101  may include, but is not limited to, a chug lid  107 , a straw lid  108 , or a flip-top lid. The removable lid  101  may also have an attached carabiner or strap as shown in  FIGS. 1C and 1D . 
       FIGS. 2A and 2B  show the attachment of the light puck  104  and flash cap  103  to the container  102 .  FIG. 2A  shows a cross section of the flash cap  103  and the attachment of the light puck  104  to the flash cap  103  and container  102 .  FIG. 2B  shows the attachment of the flash cap  103  and retainer ring  200  to the container  102 . The retainer ring  200  is molded out of a glass-filled polypropylene as shown in  FIG. 2B  (left). The retainer ring is permanently affixed to the underside container  102  via a press-fit and/or snap as shown in  FIG. 2B  (middle). The retainer ring  200  and flash cap  103  are each independently attached to the container  102  as shown in  FIG. 2B  (right). The flash cap  103  may be attached to the container  102  permanently via a one-time snap fit as shown in  FIG. 2B  (right). Alternatively, the flash cap  103  may screw or thread into the container and/or the retainer ring  200 . The flash cap  103  may also be removably screwed onto or otherwise removably affixed to the container  102 . 
       FIGS. 2C and 2D  show different views of the flash cap  103 , which is annular or ring-shaped. The flash cap  103  includes two polycarbonate rings, an inner ring  201  and an outer ring  202  as shown in  FIGS. 2C and 2D . The inner ring  201  may be more translucent or transparent than the outer ring  202 . The inner ring  201  is cloudy or frosted in appearance; for example, it may be etched or frosted or may contain an additive, e.g., an arrogate glass bead additive, to increase diffusion and uniformity of light dispersion. The outer ring  202  is translucent and may be tinted, e.g., grey. The outer ring  202  is over-molded over the inner ring  201  resulting in a permanent bond. The flash cap  103  acts as a diffuser to diffuse the light, producing smooth and uniform light illumination for the user. 
       FIGS. 3A-3G  show the features of the light puck  104  in greater detail. The light puck  104  is a removable, rechargeable, water-resistant or water-tight sub-assembly. The light puck  104  may also be air-tight or air-permeable. The light puck  104  is shaped like a hockey puck—that is, it is shaped like a cylindrical disk—but other light pucks may have other shapes. Its dimensions are selected so that it fits snugly into a cavity formed within the flash cap  103  at the base of the container  102  when the flash cap  103  is coupled to the container  102 . 
     The removable light puck  104  allows for more accurate measurements and decreases the risk of water damage to the light puck electronics.  FIG. 3A  shows a cross section of the light puck  104 . The light puck  104  may mechanically thread, screw, or snap to the underside of container  102  and/or the flash cap  103  via the retainer ring  200  as shown in  FIG. 3A . As shown in  FIGS. 3A and 3B , light from a colored visual indicator, such as one or more light emitting diodes (LEDs)  301 , passes through the clear pass-through plastic window  302  of the light puck  104  and is cast evenly against the back of the flash cap  103 .  FIG. 3B  is a close-up of  FIG. 3A , illustrating the cone of light  303  from the LEDs  301  passing through the clear pass-through plastic window  302 . The clear pass-through plastic window  302  is the wall of the light puck  104  and is positioned in front of the LEDs  301 . 
     The LEDs  301  are mounted about the circumference of the light puck  104  as shown in  FIGS. 3C and 3D . The LEDs  301  allow for a number of light patterns, chasers, back lit light patterns, or color combinations. The color, intensity, pattern, speed, or sequence of illumination from the LEDs  301  can be customized, e.g., through an application on the user&#39;s phone. The LEDs  301  can indicate a change in the weight of the contents in the container  102  or prompt to the user to drink or consume an item from the container  102 . The LEDs  301  may further notify the user of specific situations, such as low battery, data synching, low content level, expired contents, the user&#39;s hydration level, and so on. 
     Compared to a white light or monochromatic light, the multi-colored LEDs  301  allow for a more effective way to communicate different messages, such as bottle state, battery level, and progress state, to the user. For example, the processor controlling the LEDs  301  can be programmed so that yellow indicates low battery, red indicates out of battery, and green indicates fully charged. The LEDs  301  can notify the user if they are behind pace, on track, or ahead of their hydration or consumption goal. For instance, the lights may be red or yellow if the user is behind pace, green if the user is on pace, or blue if the user is ahead of pace. 
     In addition to emitting multiple colors, the LEDs  301  can light up at different pulses or chasers (“chasing” lights of the same or different colors) to further help indicate the container state, battery level, and progress state. The LEDs  301  may also produce a celebration glow to indicate that the user&#39;s hydration or consumption goal has been met using a rainbow of colors. The colored LEDs  301  allow for greater user customization as the user can program unique patterns, such as chasing lights of one color or multi-colors or light colors to match the style and color of the smart container. 
     Additionally, the LEDs  301  may allow for custom reminders from other users with a smart container, possibly through an application on the user&#39;s phone. For example, the LEDs  301  may light up in a specific sequence or arrangement set by a friend, trainer, nutritionist, or healthcare provider who is sending a push reminder. This push reminder could be sent automatically by the friend&#39;s smart water container or smart phone app in response to detecting that the friend has been meeting or exceeding a fluid consumption target. Likewise, the smart container can automatically transmit push reminders that cause other smart containers to light up or make sounds. Users can also push messages to each other via their smartphones, tablets, or other devices wirelessly connected to the smart container(s) through the use of a Bluetooth, Wi-Fi, and/or cellular antenna. 
       FIGS. 3B and 3C  show perspective views of the removable light puck  104 . The light puck  104  contains a rechargeable battery. The light puck  104  may contain a magnetic charging port  304 . The light puck  104  can be charged using a magnetic USB connector  305  as shown in  FIG. 3C . Alternatively, the light puck  104  may include a charge port plug cover  306  as shown in  FIG. 3D . The plug cover  306  may be made from silicone or another water-resistant or water-proof material. The light puck wall or puck top housing  312  may be made from metal or plastic and may have threads for engaging threads on the interior of the container or flash cap. The light puck  104  contains a clear pass-through plastic window  302  which allows the light from the LEDs  301  to be cast onto the back of the flash cap  103 . The bottom of the light puck  104  is made of a silicone membrane or another water-resistant material. 
       FIG. 3E  shows a cross-section of the light puck  104 . The light puck  104  contains an electronics assembly including a processor, one or more LEDs  301  on a printed circuit board (PCB)  320 , a weight sensor or load cell  309 , and an accelerometer. The load cell  309  may be made of aluminum or other metals. The load cell  309  may also be a resistive, inductive, pneumatic, or hydraulic load cell. The processor&#39;s functions include collecting the weight of the contents from the load cell  309 , determining the acceleration and orientation of the bottle assembly  100  from the accelerometer, and actuating the LEDs  301  to notify the user of his or her consumption levels. The processor  310  may also be operably coupled to an antenna or a wireless connection for communicating with an external device, such as a smartphone. 
     In operation, the processor receives and stores the weight of the contents measured by the load cell  309  and the acceleration measured by the accelerometer. The data is stored in an internal or external memory (e.g., memory of a smart phone wirelessly connected to the smart container) and is used to determine the change in the weight of the contents in the container  102  to estimate or determine the user&#39;s consumption over a specified period. The processor notifies the user using the colored LEDs  301  of his or her consumption levels. The processor may also share data via a wireless connection with an external device, such as a smartphone, which can then be used to track the user&#39;s hydration or consumption levels over an extended period of time (e.g., a week or month). The user may also earn trophies, gifts, or points based on the user&#39;s progress in an application on the user&#39;s phone. The points can also be paired with another application or fitness monitoring system (e.g., Rally) to give the user a financial incentive. For example, the user may be able to use the points to receive a health insurance deduction from the user&#39;s employer. The processer has additional visual light reminders to communicate progress, power state, and product state for the user. Alternatively, the progress, power state, and product state can be communicated to the user through audio reminders through the use of speakers or vibration signals through the use of motors or other actuators. 
     The processor is operably coupled to the load cell  309 , the accelerometer, the LEDs  301 , the antenna, and the power source (battery). The processor prompts the load cell  309  to measure the weight of the contents in the container  102  in response to the acceleration measured by the accelerometer to determine a change in the weight of the contents in the container  102 . The accelerometer measures the change in position of the bottle assembly  100  to determine the orientation and angle of the bottle assembly  100  and contents inside the container  102 . The accelerometer and the load cell  309  can be prompted to take a measurement on a regular basis or at certain intervals to determine the orientation of the bottle assembly  100 . 
     The accelerometer may be used to determine the bottle assembly&#39;s orientation, e.g., if the bottle assembly  100  is vertical. When the bottle assembly  100  is vertical and stable for a predetermined period (e.g., at least two seconds), the processor prompts the load cell  309  to take a measurement of the weight of the contents inside the container  102 . When the bottle assembly  100  has been vertical for an extended period the load cell  309  may still take a measurement on a regular basis. The interval may be 1 second, 2 seconds, 5 seconds, 1 minute, 2 minutes, 5 minutes, 15 minutes, 30 minutes, 1 hour, 2 hours, 5 hours and so on. The interval may change based on the time of day, the user&#39;s schedule, and/or user preference through programming on an application on the user&#39;s phone. 
     Alternatively, the polling rate of measurements can be adjusted to save battery power. The accelerometer takes measurements with frequently enough that it can register repeated measurements of the same amount represent inactivity (i.e., the orientation of the bottle assembly  100  has not changed). The accelerometer may also provide a warning to the user that the contents of the smart container may be expired or that the contents should be changed after a period of inactivity. Temperature in the range of 0° Celsius to 100° Celsius is also measured and stored by the processor. This allows for a more accurate weight measurement by the load cell  309 . Internal temperature information can also be used to offset effects of load-cell in accuracy from contracting or expanding air within a sealed light puck  104 . 
     If the bottle assembly  100  is not vertical, the load cell  309  does not take a measurement because the load cell  309  may not be able to obtain an accurate measurement of the weight of the contents in the container  102 . For example, if the container  102  is at an angle for a long period of time (e.g., while on a bike), the load cell  309  will not take any measurements. However, once the container  102  is placed on a flat surface, the load cell  309  measures the weight of the contents in the container  102 . Alternatively, if the container is within a specified range of angles, the weight of the contents may be measured. Beyond a specified range, the weight of the contents may not be taken, or if it is taken, the contents weight may be adjusted to compensate for the orientation of the bottle assembly  100 . 
     The load cell  309  can calibrated beforehand (e.g., at the factory) or by the user setting the bottle assemble  100  on a flat surface when the container  102  is empty. The user then places the bottle assembly  100  on a flat surface when the container  102  is full. These two values are stored in an internal or external memory and are used to create a correction curve of the load cell readings. The temperature of the contents in the container  102  can also be used to calibrate the load cell  309 . The light puck  104  may also be calibrated by the user using an application on the user&#39;s device by establishing unloaded and fully loaded states of the container  102 . The application may provide a warning to the user through light, vibration, or sound prompting the user to calibrate the smart container. 
     A self-correcting process implemented by the smart container&#39;s processor is further used to account for load cell drift over time or damage. With usage, the minimum and maximum load cell values may change. The processor recognizes any reasonable (e.g., not characteristic of mechanical or electrical failure, such as zero or 10 times the average value) load cell value larger than the maximum or less than the minimum. When this occurs, the minimum/maximum value is set to the new larger/smaller value. The processor also records high acceleration values measured by the load cell. If these high acceleration values are transient, they may indicate a drop or impact to the bottle assembly  100 . Additionally, the processor records very high temperature and/or very cold temperatures as these may damage the load cell  309  and may prompt the user to re-calibrate the load cell  309 . 
     A short history of accelerometer values is stored in an internal or external memory (e.g., the memory of a smartphone that communicates with the smart container). Several load cell readings are taken for each measurement to allow the weight to stabilize and account for any content movement. A short history of load cell values is also stored in an internal or external memory. The user&#39;s sip measurement is calculated as the starting load cell value minus the ending load cell value. These measurements are time stamped and can be stored in the memory. Each sip is time stamped down to the second of when the bottle  100  recognized the sip. For each sip, the time the sip was taken, the minimum load cell reading, the maximum load cell reading, the starting load cell reading value, the final load cell reading value, temperature, and load cell sensor input voltage can be stored in the memory. 
       FIG. 3F  shows an exploded view of the components of the light puck  104 . The light puck  104  includes a magnetic charging port including two ferromagnetic lugs  314  and plated pogo pins  315 , the top housing  312 , a clear pass-through plastic window  302 , a protective insulation layer, e.g., fishpaper,  316 , a rechargeable lithium battery  311 , a foam pad adhesive  317 , the PCB  320  with a processor  310  and multiple light sources, such as LEDs  301 , a load cell  309 , an upper plate  318 , and a base plate  319 . The protective insulation layer  316  prevents the processor  310  and other electrical components from contacting the battery  311 . The light puck  104  may also include screws or over-molded metal inserts or be ultrasonically welded to connect the components. The clear pass-through plastic window  302  is over-molded to the puck housing  312  to form a permanent bond. The light puck  104  may also have a RFID or NFC tag  313 . The RFID or NFC tag  313  may be attached to or embedded in the side or bottom of the base plate  319  as shown in  FIG. 3E . 
       FIG. 3G  shows a top (left) and underside (right) view of the processor  310 , which is implemented here as one or more discrete electronic components, including, e.g., a microcontroller or microcontroller chip, memory, power management, Wi-Fi or Bluetooth Low Energy antenna and circuitry, etc., mounted on the PCB  320  or other suitable substrate. The LEDs  301  are circumferentially mounted on the underside of the PCB  320 . The processor  310  may control at least  10  circumferentially mounted color LEDs  301 .If desired, the RFID or NFC tag  313  can be mounted on the PCB  320  for easier coupling to the processor  310 . 
     The light puck  104  may also contain a speaker or other noise-producing device to further prompt the user to drink a liquid or consume an item from the container  102 . This speaker could be programmed by the user for auditory reminders, via a user-created recording or a preset recording selected by the user. It can be used to indicate the progress of the user towards their hydration or consumption goal and to send reminders to the user to drink water or consume contents from the container  102 . It can also be used to indicate battery level or bottle status indicators with voice-recorded indicators, such as “Your battery is low” or “You met your goal” or “10 more oz to go.” A user can also send and/or receive custom auditory reminders via the smart container speaker. A user can also receive recorded audio that can be sent to the smart container from a non-user. For example, a user can receive an audio message from a health care professional prompting the user to take a pill from the smart container. 
     The light puck  104  may also have a motor or other actuator to further prompt the user through the use of vibrations. This motor could be programmed by the user for reminders via a user-created preset vibration notification. It can be used to indicate the progress of the user towards their hydration or consumption goal and to send reminders to the user to drink water or consume contents from the container  102 . It can also be used to indicate battery level or bottle status indicators with various vibration patters, such as rapid vibrations, a single vibration, or pulsing vibrations. 
     The light puck  104  may also have Bluetooth, Wi-Fi, or cellular capabilities in the form of an antenna and suitable transmit and receive circuitry. The user can connect the smart container to a smartphone, tablet, or other device through a Bluetooth, Wi-Fi, and/or cellular antenna. The cellular connection may be through a cellular hub or a cellular data plan. The wireless connection allows the user to program custom audio, visual or vibration reminders the user&#39;s smart container(s) through an application on the user&#39;s device. The wireless connection allows the processor to transmit recorded measurement data to an external storage system, receive updated user preferences, or receive commands from an application on the user&#39;s phone or a non-user. Users can also push messages to each other via their smartphones, tablets, or other devices wirelessly 4/25/connected to the smart container(s). 
     The light puck  104  may also have RFID or NFC capabilities to track a user&#39;s preferences (e.g., beverage flavors when used with a beverage-dispensing machine), the contents being placed in the container (e.g., liquid, food, or pills), or specific information about the type and size of container that the light puck  104  is being inserted into. For example, the light puck  104  may have an RFID or NFC tag that recognizes a corresponding RFID or NFC tag on a beverage refill station to communicate user preferences or the contents in the smart container  102  for the sensor to automatically refill the container  102  with the user&#39;s preferred contents. 
     The RFID or NFC tag may also be used to communicate the status of the bottle and/or transmit data to an external device to track the user&#39;s hydration or consumption levels (e.g., when the smart container does not have Wi-Fi, cellular, or Bluetooth capabilities). For example, the user may tap a cell phone to the RFID or NFC tag once to indicate that the contents of the smart container have been consumed or twice to indicate that container has been refilled. The RFID or NFC tag may be located inside the puck (e.g., on the PCB  320  or on the base plate  319  of the light puck  104 ), on the smart container  102  (e.g., on a sleeve attached to the smart container), or on the lid  101  of the smart container  102 . The RFID or NFC tag may be attached to the surface of the light puck  104  or it may be molded into the plastic itself 
     The light puck  104  may also have a serial number to associate the light puck  104  with a particular user. The serial number may be stored in an application on the user&#39;s device and allows the user&#39;s data to be transferred between light pucks, for example, if the light puck  104  is replaced. The light puck  104  may also be disassembled to allow parts to be repaired, replaced, or re-used. 
     The light puck  104  is interchangeable between the smart container devices and is completely independent of the dispensing mechanism of the container  102 . The light puck  104  may also come in multiple sizes to accommodate different smart container devices to ensure that the LED  301  spacing and intensity are uniform between devices. For example, a 32 oz smart container may use a different size light puck from a 12 oz smart container. The light puck  104  is compatible with any material (i.e., plastic, glass, or metal) based on user preference for the smart container. In one embodiment, the user may set the type and size of smart container through programming on an application on the user&#39;s phone. The user may set preferences (e.g., notifications) for each smart container in an application on the user&#39;s phone. 
     In another embodiment, the light puck  104  may be able to sense the type and size of the smart container and then the user confirms the pairing is correct in an application on the user&#39;s phone. For example, the light puck  104  may have an RFID or NFC tag that recognizes a corresponding RFID or NFC tag on the bottom of the container  102  which communicates information about the size and type of the smart container to the light puck  104 . The light puck  104  can automatically determine the size and weight of the bottle allowing for simpler calibration. Alternatively, the light puck  104  may be able to sense the weight of the container and/or orientation of the sensor and choose the type and size of the smart container from a matrix of known combinations. There may also be a physical feature between the sensor and container that allows the light puck  104  to detect and identify the type and size of the smart container. 
       FIGS. 4A and 4B  show two different views of the illuminated light puck  104  inside the flash cap  103 —a view of the flash cap  103  without a diffuser additive ( FIG. 4A ) and a view of the flash cap  103  with a diffuser additive ( FIG. 4B ). In each view, the LEDs  301  are positioned circumferentially and emit light radially, facing outwards as shown in  FIGS. 3C and 3D . In the left view, the light from the LEDs  301  is not uniformly distributed and the individual LEDs are visible  301  to the user. In the right view, the flash cap  103  and diffuser uniformly distribute the light from the LEDs  301 , producing smooth and uniform light illumination for the user. 
       FIGS. 5A-5F  show the assembly of the light puck  104 . The base plate  319  contains a glass-filled nylon (GFPA) substrate lower plate  307  and a silicone membrane  308 . The silicone membrane  308  is permanently over-molded with a bond to the hard plastic lower plate  319  as shown in  FIG. 5A . The bond may be water-tight or water-resistant and/or air-tight or air-permeable. The silicone membrane  308  can be elastically stretched open to accommodate for the load cell  309  and upper plate  318  assembly. The load cell  309  and upper plate  318  are held together using a machine screw. The load cell  309  and upper plate  318  assembly are connected to the base plate  319  using molded brass inserts  500  as shown in  FIG. 5B . The silicone membrane  308  is looped over and into an upper plate perimeter channel  502  as shown in  FIG. 5C . The load cell  309  and upper plate  318  assembly is mechanically fastened at  501  to the lower plate as shown in  FIG. 5D . The lower plate  307  supports the load cell  309  and upper plate  318  assembly via the cantilevered load cell  309 . The load cell  309  is constrained to the lower plate  319 . The contents of the container  102  are supported by the upper plate  318  and are suspended over the base plate  319  via the load cell  309 , allowing weight measurements of the contents in the smart container to be taken. The upper plate  318  is constrained concentrically with the silicone membrane  308  and to the upper surface of the load cell  309 . 
       FIG. 5E  shows the attachment of the puck housing  503  to the upper plate  318 . The puck housing  503  includes the top opaque housing  312  and the clear pass-through plastic window  302 . The clear pass-through plastic window  302  is over-molded to the top opaque housing  312 . The puck housing  503  is assembled to the upper plate  318  via a thread-forming screw. A channel at the base of the clear pass-through plastic window  302  acts to compress to silicone membrane  308  edge against the upper plate  318 , thus sealing the system from the top. The puck housing  503  fastens to the upper plate  318 , compressing and locking the silicone membrane  308  within the assembly. This ensures an air and watertight seal. Three additional silicone O-rings (not shown) are used to ensure no air passage through the screw hole bosses in the puck housing  503 . An adhesive, e.g., an epoxy or a silicone, seals off air passages where the pogo pins  315  pass through the puck housing  503 .  FIG. 5F  shows the assembled light puck  104 . The seal is formed by compressing the silicone membrane  308  between the puck housing  503  and the upper plate  318  as shown in  FIG. 5F . The seal may be water-tight or water-resistant and/or air-tight or air-permeable. The light puck  104  is a discrete assembly that can be removed from the container  102 , for cleaning, charging a battery, or replacement. The user can wash the light puck  104  by hand or possibly in a dishwasher. 
     When the light puck  104  is constructed in a water-tight manner, the expansion or contraction of air within the light puck  104  as a result of an ambient temperature or pressure change may cause the light puck  104  to expand or contract minutely, resulting in a positive or negative pressure change inside the light puck  104 . This internal pressure change may cause false load-cell readings as the load-cell is deflected from this expansion or contraction of the light puck  104 . When the light puck  104  is water-tight, an air-permeable, water-resistant PTFE membrane is used in the construction of the puck housing  503  to allow air to enter and exit the puck. This prevents the light puck&#39;s internal pressure from changing as the light puck  104  expands or contracts due to ambient temperature or pressure changes, resulting in more accurate weight sensing by preventing or reducing deflection of the load cell due to internal pressure changes. The membrane can be made from PTFE or any other hydrophobic breathable substrate. The membrane can be attached to an external or internal light puck wall by pressure sensitive adhesive, over-molding, ultrasonic welding, press-fit, or sandwiching between mating parts. 
     Alternatively, an electronic barometer on the printed circuit board  320  may be used to resolve load-cell inaccuracies from internal pressure as a result of temperature in a water-tight light puck  104 . Static pressure within the puck as measured by the barometer based on known ambient temperatures can be correlated and adjusted for algorithmically within the in a water-tight light puck  104  electronics. 
     Other versions of the bottle assembly can be configured to hold and dispense pills, food, or other substances. For instance, the bottle assembly can be configured as a smart pill container for medical adherence or compliance or a smart vitamin or food container. Instead of weighing a liquid, the load cell weighs pills, vitamins, food, or other contents of the container. As with the smart water bottle, the smart pill/food container can light up, emit sound, or vibrate to prompt the user to take a pill or eat the food. 
     Smart Pill Container 
       FIGS. 6A-6C  show a pill container  602  and lid  601  coupled to a light puck  104  to form a smart pill container  600  ( FIG. 6A ), a pill container  602  and lid  601  detached from the light puck  104  ( FIG. 6B ), and the light puck  104  by itself ( FIG. 6C ). The pill container  602  may be a pill bottle or pill cartridge. The pill container  602  may contain pill holding compartments. The pill container  602  may come in a variety of sizes to accommodate different size and quantity of pills. For example, the pill container  602  may be a refillable cartridge that can be filled by the user or by a pharmacy. The pill container  602  may be pre-filled or manually filled. For example, the pharmacy may deliver the pre-filled pill container  602  to the user&#39;s home. The smart pill container  600  could also be set to the time at which the dose should be taken. For example, the smart pill container  600  may glow green whenever the user is supposed to take a pill (e.g., twice a day) and glow red if the user tries to take an extra pill or take a pill at the wrong time. The smart pill container  600  may hold many different colored pills, with the glows matched to the colors of the pills (e.g., blue for a blue pill, yellow for a yellow pill, and so on). Alternatively, the smart pill container  600  may have different light signals to indicate what pill to take (e.g., blinking, pulsing, or chasing). The lights, speaker, and vibration can serve as reminders to take a pill. A user can also receive recorded audio that can be sent to the smart pill container  600  from a non-user (e.g., a nurse, doctor, or relative) prompting the user to take a pill. The smart pill container may also notify a nurse, doctor, or caregiver of missed doses. The smart pill container  600  may also blink or chase if the user forgets to take a pill. It can record each instance when the user takes or doesn&#39;t take a pill for medical adherence/compliance. It may also track side effects of the medication through an application in the user&#39;s phone. These configurations for the medicine and frequency of dosage can be configured in an application in the user&#39;s phone. This information could be relayed back to the prescribing physician via a HIPAA-compliant cloud application so the doctor can monitor the user&#39;s adherence and send messages to the user promoting adherence and/or modifying prescription instructions. 
     The light puck  104  may be totally encapsulated inside the smart pill container  600  so that the smart pill container  600  can be cleaned between users if necessary. The light puck  104  and pill container  602  may also have RFID of NFC capabilities to communicate specific information about the contents of the pill container  602  or to communicate a schedule of medication doses to the user when the light puck  104  is inserted into pill container  602 . Alternatively, the contents of the pill container  602  may be communicated to the user through an application on their phone. 
     Smart Food Container 
       FIGS. 7A-7C  show a food container  702  and lid  701  coupled to a light puck  104  to form a smart food container  700  ( FIG. 7A ), a food container  702  and lid  701  detached from the light puck  104  ( FIG. 7B ), and the light puck  104  by itself ( FIG. 7C ). The food container  702  may be refillable that can be filled by the user or by a nutritionist. The food container  702  may be pre-filled or manually filled. For example, a nutritionist or meal-kit company could deliver a pre-filled food container  702  to the user&#39;s home. The smart food container  700  can be used to weigh the contents of the food to track the amount eaten. The lights, speaker, and vibration can serve as reminders to eat or indicate the state of the food (e.g., if the food has expired or if it is still fresh). Green could mean the food is still fresh, red could mean the food has expired. All of this information can be visible to the user and relayed back to a phone wirelessly coupled to the smart food container  700  through an application on the user&#39;s phone. It could also be relayed to a health coach or trainer to monitor a client&#39;s food intake and help with nutrition guidelines. The light puck  104  and food container  602  may also have RFID of NFC capabilities to communicate specific information about the contents of the food container  702  or to communicate a nutrition schedule to the user when the light puck  104  is inserted into food container  702 . Alternatively, the contents of the food container  702  may be communicated to the user through an application on their phone. 
     Conclusion 
     While various inventive embodiments have been described and illustrated herein, those of ordinary skill in the art will readily envision a variety of other means and/or structures for performing the function and/or obtaining the results and/or one or more of the advantages described herein, and each of such variations and/or modifications is deemed to be within the scope of the inventive embodiments described herein. More generally, those skilled in the art will readily appreciate that all parameters, dimensions, materials, and configurations described herein are meant to be exemplary and that the actual parameters, dimensions, materials, and/or configurations will depend upon the specific application or applications for which the inventive teachings is/are used. Those skilled in the art will recognize or be able to ascertain, using no more than routine experimentation, many equivalents to the specific inventive embodiments described herein. It is, therefore, to be understood that the foregoing embodiments are presented by way of example only and that, within the scope of the appended claims and equivalents thereto, inventive embodiments may be practiced otherwise than as specifically described and claimed. Inventive embodiments of the present disclosure are directed to each individual feature, system, article, material, kit, and/or method described herein. In addition, any combination of two or more such features, systems, articles, materials, kits, and/or methods, if such features, systems, articles, materials, kits, and/or methods are not mutually inconsistent, is included within the inventive scope of the present disclosure. 
     Also, various inventive concepts may be embodied as one or more methods, of which an example has been provided. The acts performed as part of the method may be ordered in any suitable way. Accordingly, embodiments may be constructed in which acts are performed in an order different than illustrated, which may include performing some acts simultaneously, even though shown as sequential acts in illustrative embodiments. 
     All definitions, as defined and used herein, should be understood to control over dictionary definitions, definitions in documents incorporated by reference, and/or ordinary meanings of the defined terms. 
     The indefinite articles “a” and “an,” as used herein in the specification and in the claims, unless clearly indicated to the contrary, should be understood to mean “at least one.” 
     The phrase “and/or,” as used herein in the specification and in the claims, should be understood to mean “either or both” of the elements so conjoined, i.e., elements that are conjunctively present in some cases and disjunctively present in other cases. Multiple elements listed with “and/or” should be construed in the same fashion, i.e., “one or more” of the elements so conjoined. Other elements may optionally be present other than the elements specifically identified by the “and/or” clause, whether related or unrelated to those elements specifically identified. Thus, as a non-limiting example, a reference to “A and/or B”, when used in conjunction with open-ended language such as “comprising” can refer, in one embodiment, to A only (optionally including elements other than B); in another embodiment, to B only (optionally including elements other than A); in yet another embodiment, to both A and B (optionally including other elements); etc. 
     As used herein in the specification and in the claims, “or” should be understood to have the same meaning as “and/or” as defined above. For example, when separating items in a list, “or” or “and/or” shall be interpreted as being inclusive, i.e., the inclusion of at least one, but also including more than one, of a number or list of elements, and, optionally, additional unlisted items. Only terms clearly indicated to the contrary, such as “only one of” or “exactly one of,” or, when used in the claims, “consisting of,” will refer to the inclusion of exactly one element of a number or list of elements. In general, the term “or” as used herein shall only be interpreted as indicating exclusive alternatives (i.e. “one or the other but not both”) when preceded by terms of exclusivity, such as “either,” “one of,” “only one of,” or “exactly one of.” “Consisting essentially of,” when used in the claims, shall have its ordinary meaning as used in the field of patent law. 
     As used herein in the specification and in the claims, the phrase “at least one,” in reference to a list of one or more elements, should be understood to mean at least one element selected from any one or more of the elements in the list of elements, but not necessarily including at least one of each and every element specifically listed within the list of elements and not excluding any combinations of elements in the list of elements. This definition also allows that elements may optionally be present other than the elements specifically identified within the list of elements to which the phrase “at least one” refers, whether related or unrelated to those elements specifically identified. Thus, as a non-limiting example, “at least one of A and B” (or, equivalently, “at least one of A or B,” or, equivalently “at least one of A and/or B”) can refer, in one embodiment, to at least one, optionally including more than one, A, with no B present (and optionally including elements other than B); in another embodiment, to at least one, optionally including more than one, B, with no A present (and optionally including elements other than A); in yet another embodiment, to at least one, optionally including more than one, A, and at least one, optionally including more than one, B (and optionally including other elements); etc. 
     In the claims, as well as in the specification above, all transitional phrases such as “comprising,” “including,” “carrying,” “having,” “containing,” “involving,” “holding,” “composed of,” and the like are to be understood to be open-ended, i.e., to mean including but not limited to. Only the transitional phrases “consisting of” and “consisting essentially of” shall be closed or semi-closed transitional phrases, respectively, as set forth in the United States Patent Office Manual of Patent Examining Procedures, Section 2111.03.