Acoustic sensor for monitoring toilet operating conditions

Abstract

A toilet monitoring system and device for detecting toilet operating conditions through acoustic analysis are provided herein. The system includes a sensor unit configured to be mounted on a toilet bowl and a control unit coupled to the sensor unit. The control unit captures and analyzes sounds from toilet operation to identify operating conditions by comparing captured sounds to reference sound patterns. When operating conditions are detected, the control unit generates alert signals. The sensor unit enables monitoring through external mounting, while the control unit's sound analysis capabilities allow differentiation between various conditions like clogs and leaks. The system can be installed without permanent toilet modification and provides condition detection through acoustic pattern recognition.

Description

ACOUSTIC SENSOR FOR MONITORING TOILET OPERATING CONDITIONSCROSS-REFERENCE TO RELATED APPLICATIONS

[0001] This application is related to and claims priority benefit of U. S Provisional Application No. 63 / 736,682, entitled “ACOUSTIC SENSOR FOR MONITORING TOILET OPERATING CONDITIONS” filed December 20, 2024, the contents of which are hereby incorporated by reference in their entirety into the present disclosure.FIELD OF THE DISCLOSURE

[0002] Embodiments of the present disclosure relate generally to monitoring systems and, more particularly, to systems and devices for detecting toilet operating conditions through acoustic analysis.BACKGROUND OF THE DISCLOSURE

[0003] In building maintenance and facility management, toilets represent a significant source of water waste and potential damage when malfunctions occur. Toilet clogs and leaks, if undetected, can lead to water damage, increased utility costs, and disruption of building operations. Traditional systems of detecting toilet issues typically rely on visual inspection or user reporting, which may result in delayed response times and increased damage from undetected problems.

[0004] Furthermore, existing monitoring systems may not effectively distinguish between different types of toilet conditions. For example, a system may detect that something is wrong but cannot differentiate between a clog condition and a leak condition. This limitation can lead to inefficient maintenance responses, as maintenance personnel may not know what tools or parts are needed until they inspect the toilet.

[0005] Another challenge with current systems is the mounting location of sensors. Many systems require sensors to be permanently attached to specific locations on or inside the toilet, often using adhesives or requiring modification of the toilet structure.1PH4385WO01This can make installation difficult and may limit the system's ability to be moved or reused on different toilets.

[0006] Consequently, there is a need for an improved toilet monitoring system that can be easily installed without permanent modification to the toilet, accurately detect and distinguish between different operating conditions, and provide reliable alerts while minimizing false positives. Accordingly, various embodiments detailed herein provide improved devices and methods for monitoring toilet operating conditions through acoustic analysis.BRIEF SUMMARY OF THE DISCLOSURE

[0007] Embodiments of the present disclosure provide for various devices and methods that cure many of the above noted difficulties and challenges associated with monitoring toilet operating conditions. In this regard, various embodiments of the present disclosure provide systems for detecting toilet conditions through acoustic analysis in a way that allows for easy installation, accurate condition identification, and reliable alerts without requiring permanent modification to the toilet structure.

[0008] As noted herein, detecting toilet operating conditions such as clogs and leaks presents significant challenges in building maintenance and facility management.Traditional monitoring solutions often require permanent modifications to toilet structures or complex installation procedures. These systems may also struggle to accurately distinguish between different operating conditions, leading to either delayed responses or unnecessary maintenance checks. Conventional detection methods, such as visual inspections or basic sensors, often lack the sophistication to identify specific conditions and may generate false alerts. Moreover, existing systems may require specific mounting locations or permanent attachments that limit their flexibility and reusability.

[0009] The systems and devices disclosed herein include a monitoring system with an acoustic sensor, such as a microphone sensor, that can be mounted on the exterior of a toilet bowl to detect operating conditions through sound analysis. The monitoring system processes captured sounds to identify specific toilet conditions based on characteristic2PH4385WO01sound patterns. Example embodiments of the monitoring system may accommodate various toilet configurations and mounting locations, offering a flexible and adaptable solution for different applications. The sound analysis feature enables quick and accurate detection of conditions without requiring direct contact with water flow or internal toilet components. Moreover, the system can distinguish between different operating conditions by analyzing specific sound signatures, allowing for appropriate response actions to be taken. The compressive mounting configuration enables secure attachment while allowing for easy installation and removal when needed.

[0010] In an example embodiment a toilet monitoring system is provided. The toilet monitoring system comprises a sensor unit configured to be mounted on a toilet bowl and a control unit. The control unit comprises a processor operatively coupled to the sensor unit and a memory storing sound parameter data, wherein the control unit is configured to receive sound data from the sensor unit, analyze the sound data to identify toilet operating conditions, and generate an alert based on identified toilet operating conditions.

[0011] In some embodiments, the toilet monitoring system further comprises a communication module operatively coupled to the control unit, wherein the alerts are transmitted through the communication module to indicate identified toilet operating conditions.

[0012] In some embodiments, the toilet operating conditions comprise normal flush operation, clog condition indicated by altered water flow sounds, leak condition indicated by water flow sounds between flush operations, and tank fill operation.

[0013] In some embodiments the control unit is configured to perform an initialization process comprising recording sound data during multiple flush operations, determining normal sound patterns for flush operations, and storing the normal sound patterns in memory.

[0014] In some embodiments, the normal sound patterns comprise flush initiation sounds, water flow sounds during bowl evacuation, refill sounds, and cycle completion sounds.3PH4385WO01

[0015] In some embodiments, analyzing the sound data comprises comparing detected sounds to stored normal sound patterns, identifying deviations from normal sound patterns, and determining whether deviations indicate a toilet operating condition.

[0016] In some embodiments, identifying toiler operating conditions comprises detecting deviations in evacuation sound patterns indicating clog conditions, persistent water movement sounds indicating leak conditions, incomplete flush cycle patterns, and abnormal tank refill operations

[0017] In some embodiments, detecting clog conditions comprises identifying increased amplitude in sound during evacuation, detecting extended evacuation duration, recognizing interrupted evacuation patterns, and verifying bowl clearance sounds.

[0018] In some embodiments, wherein detecting leak conditions comprises monitoring for water movement during inactive periods, analyzing sound persistence patterns, identifying cyclical water sounds, and detecting unauthorized tank refill operations.

[0019] In some embodiments, the sensor unit comprises at least one acoustic sensing element.

[0020] In some embodiments, the sensor unit is configured to detect sounds of toilet operation, capture amplitude variations, and provide continuous monitoring.

[0021] In some embodiments, the toilet monitoring system can further comprise multiple sensor units configured to capture sounds from different bowl locations, provide sound distribution data, and detection accuracy,

[0022] In some embodiments, the toilet monitoring system can further comprise a valve control module operatively coupled to the control unit, wherein the control unit is configured to send signals to the valve control module based on identified operating conditions.

[0023] In some embodiments, the valve control module is configured to modify flush water volume, adjust flush duration, initiate additional flush cycles, and stop water flow in response to detected conditions.4PH4385WO01

[0024] In some embodiments, the control unit is configured to determine appropriate response actions based on identified conditions, and generate corresponding control signals.

[0025] In some embodiments, generating the alert comprises determining alert priority levels, selecting alert types based on condition severity, initiating appropriate alert, and logging condition details.

[0026] In some embodiments, the alert types comprise visual indicators, audible alerts, wireless notifications, maintenance staff alerts, and application notifications.

[0027] In some embodiments, the toilet monitoring system further comprises wireless communication configured to transmit alert signals, receive configuration updates, communicate with a user application, and interface with building management systems.

[0028] In some embodiments, the sensor unit mounting location comprises a position for sound detection,

[0029] In some embodiments, the toilet monitoring system further comprises a power supply module configured to provide power to the sensor unit and control unit.

[0030] In some embodiments, the power supply module comprises a primary power source, a backup power source, and power monitoring capability.

[0031] In some embodiments, the toilet monitoring system further comprises integration capabilities with building management systems, maintenance scheduling systems, water management systems, and facility monitoring systems.

[0032] In some embodiments, the control unit implements condition prediction algorithms, preventive maintenance scheduling, and usage pattern analysis.

[0033] In some embodiments, the control unit maintains operational history logs, condition occurrence patterns, maintenance records, and system performance metrics.

[0034] In some embodiments, the toilet monitoring system further comprises a user interface configured to display system status, provide condition alerts, enable configuration adjustments, and access operational data.5PH4385WO01

[0035] In some embodiments, the control unit provides diagnostic information; troubleshooting guidance, maintenance recommendations, and condition resolution steps.

[0036] In some embodiments the control unit is configured to learn from operational patterns, adapt parameter thresholds, improve detection accuracy, and reduce false alerts.

[0037] In some embodiments, the toilet monitoring system further comprises a second sensor unit configured to detect vibrations from toilet operation. The control unit is further configured to receive vibration data from the second sensor unit, analyze combined sound and vibration data, and identify toilet operating conditions based on the combined analysis.

[0038] In some embodiments, the second sensor unit is configured to be mounted at a different location on the toilet bowl, a position complementary to the first sensor unit, and a location providing different detection coverage.

[0039] In some embodiments, analyzing combined sound and vibration data comprises comparing timing of detected events, and validating condition across sensors.

[0040] In some embodiments the communication module of the toilet monitoring system comprises connectivity with a mobile device application.

[0041] In some embodiments, the mobile device application is configured to display toilet operating conditions, receive alerts from the communication module, enable system configuration, and store operational history.

[0042] In another example embodiment a toilet assembly is provided where the toilet assembly comprises the toilet monitoring system.BRIEF DESCRIPTION OF THE DRAWINGS

[0043] Having thus described embodiments of the present disclosure in general terms, reference will now be made to the accompanying drawings, which are not necessarily drawn to scale, and wherein:6PH4385WO01

[0044] FIG. 1A illustrates a side view of a toilet system and the toilet system components including sensor placement, in accordance with some embodiments discussed herein;

[0045] FIG. 1B illustrates a side view of the toilet system of FIG. 1A illustrating detection of a leak condition through water level changes and sound analysis, in accordance with some embodiments discussed herein;

[0046] FIG. 1C illustrates a side view of the toilet system of FIG. 1A illustrating detection of a clog condition through water level changes and sound analysis, in accordance with some embodiments discussed herein;

[0047] FIG. 2 is a flowchart illustrating system operation states and transitions between states for detecting toilet conditions, in accordance with some embodiments discussed herein; and

[0048] FIG. 3 is a schematic illustration of a mobile application user interface showing toilet system status, in accordance with some embodiments discussed herein.DETAILED DESCRIPTION

[0049] Exemplary embodiments of the present disclosure will be described more fully hereinafter with reference to the accompanying drawings, in which some, but not all embodiments of the present disclosure are shown. Indeed, the present disclosure may be embodied in many different forms and should not be construed as limited to the exemplary embodiments set forth herein; rather, these embodiments are provided so that this disclosure will satisfy applicable legal requirements. Like reference numerals refer to like elements throughout.

[0050] FIG. 1A illustrates a toilet 100 comprising several components configured to enable acoustic monitoring of toilet operating conditions. Toilet 100 includes a tank 102 mounted above a bowl 104. Bowl 104 contains a water line 101 indicating the normal water level maintained during standard operation. A lid 103 is positioned on top of the tank 102, providing access to internal tank components while protecting them during normal operation.7PH4385WO01

[0051] Toilet 100 also includes a trap way 106 that forms a curved channel through which water and waste flow during flush operations. Trap way 106 maintains water line 101 through its curved configuration, which creates a water seal preventing sewer gases from entering bowl 104.

[0052] A control unit 108 is mounted on the exterior surface of bowl 104, positioned to process data from system components. Control unit 108 may comprise a processor and memory storage for analyzing sound data and managing system operations. Control unit 108 may be housed in a water-resistant enclosure to protect electronic components from moisture exposure.

[0053] A sensor unit 110 is mounted on the exterior surface of bowl 104, positioned above water line 101. Sensor unit 110 is configured to detect acoustic signals generated during toilet operation. In some embodiments, sensor unit 110 comprises at least one acoustic sensing element capable of capturing sounds, such as a microphone sensor, within frequency characteristic of toilet operations. Sensor unit 110 may be mounted using various attachment methods that maintain consistent acoustic coupling with the bowl surface while allowing for removal if needed. In some embodiments, sensor unit 110 may be configured with various mounting orientations on bowl 104 surface for sound detection. Sensor unit 110 may be positioned at different heights above the water line 101 or at different angles relative to bowl 104 surface. This flexibility in mounting location enables for adaptation to different bowl configurations while maintaining acoustic monitoring.

[0054] Sensor unit 110 may be mounted in various positions throughout the toilet assembly to enable detection of different operating conditions. While mounting on the exterior bowl surface provides one detection approach, alternative mounting locations enable other monitoring capabilities through strategic sensor placement. Sensor unit 110 can be mounted on interior surfaces of bowl 104, both above and below water line 101. Interior bowl mounting provides direct exposure to water movement sounds while maintaining protection through a waterproof sensor housing. Mounting above water line 101 on interior surfaces enables detection of water flow patterns during flush operations, while mounting below water line 101 enables capture of underwater acoustic signatures.8PH4385WO01

[0055] Trap way 106 presents multiple mounting options for sensor unit 110. Sensor unit 110 may mount on exterior trap way surfaces to detect water flow through acoustic coupling with the trap way. In some embodiments, trap way 106 may be a plastic trap way, where sensor unit 110 may incorporate threaded fittings enabling secure mounting through the trap way wall, and enabling direct contact with water flow while maintaining sealed connections. This provides detection of flow patterns within trap way 106.

[0056] Tank 102 can accommodate several mounting positions for sensor unit 110. Sensor unit 110 may mount on exterior tank surfaces to detect fill operations and water movement. Interior tank mounting positions, both above and below water line, enable direct monitoring of fill valve and flush valve operations. In some embodiments, sensor unit 110 may be dropped within tank 102 providing detection of tank water levels and valve operations. Sensor unit 110 may also mount on tank components including the fill valve assembly, flush valve body, or refill line. Mounting on the fill valve assembly enables detection of fill operation patterns and potential valve malfunctions. Flush valve body mounting provides direct monitoring of flush initiation and completion. Refill line mounting provides detection of water flow patterns during tank filling operations.

[0057] Multiple sensor units may be implemented across different mounting locations to provide monitoring coverage. For example, combining bowl -mounted and tankmounted sensors enables correlation of detected patterns between different toilet regions.

[0058] In some embodiments, sensor unit 110 may incorporate vibration sensing elements in addition to, or instead, of acoustic sensing elements. These vibration sensing elements detect sound data propagating through toilet components, providing additional data about operating conditions.

[0059] In some embodiments with vibration sensing capability, sensor unit 110 mounted on bowl 104 exterior can detect sound data generated by water movement. When mounted below water line 101, vibration sensors detect patterns of water flow against bowl surfaces. Mounting above water line 101 enables detection of vibrations from both water flow and tank operations transmitted through bowl material.9PH4385WO01

[0060] In some embodiments, vibration sensors mounted on trap way 106 exterior surfaces detect sound data characteristics of different flow conditions. The curved geometry of trap way 106 transmits vibration patterns during normal flow, restricted flow, and clog conditions.

[0061] In some embodiments sensor unit 110 with vibration sensing elements can be positioned on tank 102 surfaces or components. Tank wall mounting enables detection of sound data from valve operations and water movement during fill cycles. Mounting directly on fill valves or flush valves can detect operational patterns through mechanical coupling with valve mechanisms. Mounted on refill lines detect water flow vibrations and potential flow restrictions.

[0062] In some embodiments, vibration sensor mounted within tank 102 or on tank components may detect operating conditions of internal tank movements. For example, a vibration sensor positioned on or near a flush valve assembly may detect sound data indicating incomplete flapper closure. When the flapper fails to fully seal, water leaking past the flapper creates vibration / sound patterns detectable by sensor unit 110. These patterns differ from the vibrations generated during normal flush valve operation. When the fill valve fails to fully close or experiences other malfunctions, it can produce altered vibration patterns. Sensor unit 110 may detect these deviations indicating a running or malfunctioning fill valve condition.

[0063] In some embodiments, vibration sensor element can be dropped within tank 102, vibration sensing elements may be incorporated in waterproof housings. These sensors can detect water turbulence patterns and sound data transmitted through the water. Multiple vibration sensors may be implemented across different mounting locations. This enables the combination of data from multiple vibration sensors to enable the system's ability to locate and characterize operating conditions.

[0064] Each mounting location may provide specific advantages for different types of condition detection. Bowl-mounted sensors can help with detecting leaks and clogs, tankmounted sensors can help with detection of fill valve and flush valve conditions, while10PH4385WO01trap way-mounted sensors can provide flow pattern analysis. The selection of mounting locations may be tailored to specific monitoring requirements and toilet configurations.

[0065] A connection 109 provides a communication path between sensor unit 110 and control unit 108. Connection 109 may be implemented as a wired connection using water-resistant cabling and connectors suitable for bathroom environments. In some embodiments, connection 109 may utilize wireless communication protocols between the sensor unit 110 and control unit 108.

[0066] Sensor unit 110 may comprise internal signal processing before transmission to control unit 108. This processing may include filtering of environmental noise, amplification of relevant frequencies, and conversion of the acoustic sounds. Sensor unit 110 may also include memory to temporarily store sound data during processing.

[0067] Control unit 108 receives processed sound data from sensor unit 110 through connection 109. Control unit 108 analyzes this data using stored parameters that define normal toilet operation patterns. These parameters may include expected sound signatures for various phases of toilet operation including flush initiation, bowl evacuation through trap way 106, and tank refill sequences.

[0068] During normal operation, water in bowl 104 maintains a consistent level at water line 101. This water level is sustained by the curved configuration of trap way 106, which creates a water seal preventing sewer gas escape while allowing waste and water passage during flush cycles. Water line 101 serves as a reference point for detecting variations that may indicate abnormal operating conditions. Tank 102 contains water used during flush operations and typically includes fill valves and flush valves controlling water flow. These mechanical components generate characteristic sounds during operation that sensor unit 110 can detect and analyze. The positioning of sensor unit 110 enables detection of sounds from both tank 102 operations and bowl 104 water movement.

[0069] Lid 103 provides access to internal tank components while also serving to contain reduce operational noise. In some embodiments, lid 103 may be equipped with11PH4385WO01additional sensors or monitoring devices that communicate with control unit 108 through wireless or wired connections.

[0070] Control unit 108 may implement various algorithms to analyze received sound data and identify toilet operating conditions. These algorithms may include pattern matching against stored reference sounds, analysis of sound characteristics, and machine learning techniques that adapt to specific toilet installation acoustics over time. During an initialization process, control unit 108 may capture sound data from multiple complete flush cycles to establish baseline operational parameters. These parameters include normal sound patterns for flush initiation, water flow through trap way 106, and tank 102 refill operations. The initialization process enables accurate condition detection by accounting for the specific acoustic characteristics of each toilet installation.

[0071] Control unit 108 maintains continuous monitoring of sounds detected by sensor unit 110 during normal operation. This monitoring allows for real-time detection of abnormal conditions through comparison with stored baseline parameters. Control unit 108 may be able to detect subtle variations in sound patterns that may indicate developing issues before they become severe.

[0072] In some embodiments, control unit 108 may be configured to generate different types of alerts based on detected operating conditions. These alerts may include visual or audible indicators mounted on or near toilet 100, as well as remote notifications transmitted through wireless communication channels.

[0073] Sensor unit 110 monitors sounds continuously during toilet 100 operation to detect multiple types of conditions. For example, for leak detection, sensor unit 110 analyzes sounds during periods between flush cycles when toilet 100 should be quiet. Detection of persistent water movement sounds during these periods may indicate a leak condition.

[0074] For clog detection, sensor unit 110 monitors sound patterns during flush cycles. Normal flush operations produce characteristic sound signatures as water flows from tank 102 through bowl 104 and trap way 106. Deviations from these normal12PH4385WO01patterns, such as extended evacuation times or interrupted flow sounds, may indicate a clog condition.

[0075] Control unit 108 may also utilize wireless communication capabilities to transmit data to external systems and devices. This wireless connectivity enables integration with building management systems, maintenance scheduling systems, and mobile device applications. The wireless communication may be implemented using various protocols suitable for reliable data transmission in building environments.

[0076] In some embodiments, multiple sensor units may also be deployed on toilet 100 to enhance detection capabilities. For example, a second sensor unit may be mounted at a different location on bowl 104 to provide additional sound detection coverage. In some embodiments, the second sensor unit may include vibration sensors, temperature sensors, or other sensing devices that complement acoustic detection. Control unit 108 may process data from multiple sensor types to enhance condition detection reliability. The multiple sensor configuration allows for analysis of detected sounds and improved accuracy in condition identification.

[0077] In some embodiments, control unit 108 may process data from multiple sensor units using different algorithms. These algorithms may combine and correlate data from different sensors to validate detected conditions and reduce false alerts.

[0078] A mobile device application may also be configured to communicate with control unit 108 through wireless connections. The application provides a user interface displaying toilet 100 status, current operating conditions, and alert history. Users may also configure system parameters and access maintenance information through the application interface.

[0079] Control unit 108 maintains operational history including records of detected conditions, maintenance activities, and system performance metrics. This historical data enables tracking of patterns in toilet 100 operation and may be used for predictive maintenance scheduling. The data may also be analyzed to help with system performance and detection accuracy.13PH4385WO01

[0080] In some embodiments, toilet 100 may include a valve control module integrated with existing flush valve mechanisms. The valve control module receives signals from control unit 108 and can modify flush operations in response to detected conditions. This may include adjusting water volume, initiating additional flush cycles, or stopping water flow when issues are detected.

[0081] Control unit 108 may include power management features to enable system operation. A power supply module within the control unit 108 may include both primary and backup power sources. The primary power source may utilize building power through appropriate connections, while backup batteries enable continued monitoring during power interruptions. A power module may be incorporated within control unit 108 to provide electrical power to system components. The power module may utilize various power sources including direct wall power, battery power, or a combination providing primary and backup power capabilities. In some embodiments, the power module may include monitoring circuitry to track power consumption and battery status. In some embodiments, sensor unit 110 may also incorporate environmental protection features suitable for bathroom environments. The housing of sensor unit 110 may provide water resistance while maintaining acoustic sensitivity.

[0082] Installation of toilet 100 components follows procedures that enable acoustic monitoring performance such as placing sensor unit 110 above waterline 101. Sensor unit 110 mounting location may also be selected based on bowl 104 geometry and local acoustic conditions. Control unit 108 positioning provides convenient access for maintenance while protecting connections and power supplies.

[0083] Control unit 108 may incorporate diagnostic capabilities for system health monitoring. Control unit 108 may perform periodic self-tests of sensor unit 110 operation, communication links, and other system components. These diagnostics help maintain operation and enable early detection of any system issues requiring maintenance. Maintenance procedures for the toilet system 100 may include periodic verification of sensor unit 110 mounting and operation, inspection of connections 109, and validation of control unit 108 functions. Control unit 108 may generate maintenance reminders based on operating time or detection of performance variations indicating 14PH4385WO01service needs. Control unit 108 may implement various security measures to protect system data and communications. These measures may include encryption of wireless transmissions, secure storage of operational data, and access controls for system configuration changes. The security features prevent unauthorized access while allowing maintenance and monitoring activities. Toilet 100 may also adapt to variations in ambient conditions that may affect acoustic monitoring. Control unit 108 may adjust detection parameters based on background noise levels and other environmental factors. This adaptation maintains condition detection across different installation environments and operating conditions.

[0084] Toilet 100 configuration described above enables detection of various operating conditions through acoustic monitoring. This monitoring capability allows identification of specific conditions such as leaks, which are described in detail with reference to FIG. 1B.

[0085] FIG. 1B illustrates toilet 100 during detection of a leak condition. Toilet 100 maintains the same basic components as described in FIG. 1A, including tank 102, bowl 104, lid 103, and trap way 106. The water line 111 in FIG. IB shows a decreased level compared to the normal water line 101 shown in FIG. 1A, providing a visual indication of water loss through leakage.

[0086] Sensor unit 110 mounted on the exterior of bowl 104 detects sounds 115 generated by water movement during the leak condition. These sounds 115 differ from normal operation sounds in both duration and pattern. During normal operation, water movement sounds occur primarily during flush cycles and subsequent tank filling. In a leak condition, sensor unit 110 may detect persistent water movement sounds during periods when the toilet system 100 should be inactive.

[0087] Connection 109 between sensor unit 110 and control unit 108 carries the detected sound data for analysis. Control unit 108 processes this data to identify the characteristic patterns of leak-related sounds. These patterns may include continuous or intermittent water movement sounds occurring outside normal flush cycles.15PH4385WO01

[0088] Decreasing water line 111 represents a measurable effect of the leak condition. As water escapes through the leak path, the water level in bowl 104 gradually decreases below the normal operating level. Sensor unit 110 detects sounds associated with this water movement, providing early indication of leak conditions before significant water loss occurs. Control unit 108 analyzes the detected sound patterns to distinguish leak conditions from normal water flow sounds. Normal operation produces distinct sound signatures during flush cycles, characterized by defined start and end points. Leak-related sounds 115, in contrast, persist beyond normal operational timeframes and may exhibit different frequency characteristics.

[0089] Sound data collected by sensor unit 110 undergoes multiple processing stages within control unit 108. Initial processing may filter environmental noise and isolates water movement sounds. The processed data then undergoes pattern analysis to identify sustained water flow sounds characteristic of leaks. This analysis looks at the acoustic signatures of detected sounds. Control unit 108 validates potential leak conditions through extended monitoring periods. This validation process reduces false alerts by confirming the persistence of leak indicators. The system may monitor both the detected sounds 115 and the water line 111 position to establish the presence of a leak condition.

[0090] During leak detection, sensor unit 110 may adjust its monitoring parameters to focus on leak-specific sound patterns. These adjustments include modifications to sampling rates and frequency filtering to help with detection of low-amplitude water movement sounds. Sensor unit 110 may maintain this enhanced monitoring state until the leak condition resolves or maintenance occurs.

[0091] Water line 111 position may serve as a secondary indicator of leak conditions. Control unit 108 may correlate changes in water level with detected sound patterns 115 to confirm leak presence. This correlation may help distinguish actual leaks from other sources of water movement sounds in the bathroom environment. Leak detection capabilities extend to various flow rates, from slow seepage to more substantial leaks. Sensor unit 110 maintains sensitivity across this range through adaptive control and specialized signal processing. This broad detection range enables identification of leaks before they develop into severe conditions.16PH4385WO01

[0092] Historical data collected during previous leak events provides reference patterns for leak detection. Control unit 108 may compare current sound patterns with these historical references to identify similar conditions. This comparison considers variations in leak characteristics that may occur in different toilet system installations. Control unit 108 uses this historical data to refine detection parameters and improve accuracy. This ongoing process adapts to changes in toilet system operation and environmental conditions.

[0093] Toilet 100 may also implement different monitoring profiles based on time of day and usage patterns. During periods of expected inactivity, such as nighttime hours, the detection thresholds may adjust to improve sensitivity to leak-related sounds. These adjustments may account for reduced background noise during quiet periods. When leak conditions persist, control unit 108 may initiate various response actions. These responses range from alert generation to activation of water management systems. The specific response depends on leak severity and duration, as determined through continuous monitoring of sound patterns 115 and water level changes.

[0094] Furthermore, multiple leak types produce different acoustic signatures detectable by sensor unit 110. These signatures may indicate leaks in different toilet system components, such as tank seals, bowl connections, or supply lines. Control unit 108 analyzes these signatures to assist in identifying leak sources. Toilet system 100 accumulates data about detected leak conditions including duration, severity, and frequency of occurrence. This information assists maintenance personnel in diagnosing underlying causes and implementing appropriate repairs. The collected data also supports predictive maintenance by identifying patterns that may indicate developing issues.

[0095] Integration with building water management systems allows coordinated responses to detected leaks. Control unit 108 may communicate leak detection data to central monitoring systems through wireless connections. This integration enables building-wide water maintenance strategies. Toilet system 100 may provide detailed reporting of leak events including patterns, severity indicators, and system responses. These reports support maintenance planning and verification of repair effectiveness. The17PH4385WO01reporting system maintains records of leak occurrences and resolutions for long-term analysis.

[0096] Alert notifications for leak conditions include specific information about leak characteristics and recommended responses. These notifications may route through multiple channels including maintenance staff alerts, building management systems, and user applications. The notification content adapts based on alert recipient and leak severity.

[0097] In some embodiments, sensor unit 110 may incorporate multiple acoustic sensing elements oriented at different angles to enhance leak detection sensitivity. The sensing elements may be arranged in an array configuration, allowing directional analysis of detected sounds 115. This arrangement enables location of leak sources through acoustic analysis.

[0098] In some embodiments, control unit 108 may implement machine learning algorithms to improve leak detection accuracy. These algorithms analyze patterns in historical leak data to develop refined detection models. The system adapts these models over time based on confirmed leak events and maintenance feedback.

[0099] In some embodiments, the system may utilize frequency-specific monitoring for leak detection. Different leak types generate sounds 115 with characteristic frequency components. Sensor unit 110 may monitor multiple frequencies simultaneously, enabling detection of various leak conditions.

[0100] In some embodiments, control unit 108 may employ adaptive threshold techniques for leak detection. The detection thresholds adjust based on environmental conditions, time of day, and historical system behavior. This adaptation improves detection across varying operating conditions.

[0101] In some embodiments, the system may implement a staged response to detected leaks. Initial detection triggers enhanced monitoring modes to validate the leak condition. Confirmed leaks then initiate responses based on severity, from alerts to automatic water supply adjustment.18PH4385WO01

[0102] In some embodiments, control unit 108 may implement automated baseline recalibration procedures. These procedures periodically update normal operation parameters to account for gradual changes in toilet system behavior. The recalibration maintains detection accuracy over extended operating periods.

[0103] While leak detection focuses on water loss during inactive periods, sensor unit 110 also monitors for other operating conditions. FIG. 1C illustrates the detection of clog conditions, which present different acoustic and operational characteristics.

[0104] FIG. 1C depicts toilet 100 during a clog condition, maintaining the same structural components described in FIGs. 1A and 1B. Water line 121 shows an increased water level compared to normal water line 101, indicating restricted water flow through trap way 106 due to a clog condition.

[0105] Sensor unit 110 captures sounds 115' generated during attempted flush operations under clog conditions. These sounds 115' may differ from normal flush sounds in amplitude, duration, and pattern. The altered acoustic signatures result from restricted water flow and increased water turbulence caused by the clog. Control unit 108 processes sound data from sensor unit 110 through connection 109 to identify clog-specific patterns. Normal flush operations produce a characteristic sequence of sounds as water moves through bowl 104 and trap way 106. Clog conditions interrupt this sequence, creating detectable variations in the acoustic pattern.

[0106] The increased water line 121 also represents a direct effect of restricted flow through trap way 106. During normal operation, water drains from bowl 104 at a consistent rate. Clog conditions impede this drainage, leading to water accumulation and elevated water levels. Sensor unit 110 detects sounds associated with this altered flow pattern. Control unit 108 analyzes multiple characteristics of detected sounds 115' during flush operations. These characteristics include the amplitude of water movement sounds, duration of flush sounds, and relationships between different phases of the flush cycle. Variations in these characteristics may indicate the presence and severity of clog conditions.19PH4385WO01

[0107] Extended monitoring during flush operations enables sensor unit 110 and control unit 108 to track the progression of water flow. In normal operation, flush cycles complete within expected time intervals. Clog conditions typically extend these intervals as restricted flow impedes normal water movement through trap way 106.

[0108] Sensor unit 110 maintains continuous monitoring during flush cycles to detect sound pattern variations. Initial clog detection may occur when flush sounds deviate from established normal patterns. Continued monitoring tracks the persistence of abnormal sounds, indicating whether the clog condition resolves naturally or requires intervention.

[0109] In some embodiments, sensor unit 110 may incorporate multiple frequency monitoring for clog detection. Different clog types and locations may generate distinct frequency components in the detected sounds 115'. Analysis of these frequency characteristics assists in characterizing the nature and location of clogs.

[0110] In some embodiments, control unit 108 may implement pattern recognition algorithms specifically trained for clog detection. These algorithms analyze the flush sounds to identify characteristics of partial or complete clogs. The analysis considers both immediate sound variations and changes in flush patterns over multiple cycles.[OHl] In some embodiments, control unit 108 may utilize adaptive baseline adjustments for clog detection. Control unit 108 maintains updated references of normal flush sounds, accounting for variations in water pressure and system operation. This adaptation improves accuracy in identifying abnormal conditions.

[0112] In some embodiments, control unit 108 may implement alert thresholds based on clog severity. Minor flow restrictions may trigger monitoring alerts, while severe clogs generate immediate maintenance notifications. The alert level corresponds to the degree of deviation from normal flush patterns.

[0113] In some embodiments, control unit 108 may analyze the characteristics of flush sounds 115'. Normal flush operations produce consistent sound decay patterns as water levels stabilize. Clog conditions alter these decay patterns, providing additional indicators of flow restrictions.20PH4385WO01

[0114] In some embodiments, integration with a valve control module allows automated responses to detected clog conditions. Control unit 108 may modify flush parameters or initiate multiple flush cycles based on the detected severity of the clog. These automated responses attempt to clear minor clogs while preventing overflow conditions.

[0115] Historical data collection for clog events may also enable system performance over time. Control unit 108 builds a database of clog-related sound patterns, supporting improved detection accuracy and predictive maintenance capabilities. This data aids in identifying recurring issues and evaluating maintenance effectiveness.

[0116] FIG. 2 illustrates a flowchart depicting the operational states and transitions of toilet monitoring system. The operations described may be executed by components of the toilet monitoring system, such as control unit 108 and sensor unit 110 described in previous figures.

[0117] At operation 205, system performs initialization procedures. During initialization, control unit 108 establishes baseline parameters for normal toilet operation. This involves recording and analyzing sound data from multiple complete flush cycles. Control unit 108 processes this data to establish reference patterns for various operational phases including flush initiation, bowl evacuation, and tank refill sequences.

[0118] At operation 210, system enters a sound monitoring state. Sensor unit 110 continuously captures acoustic data from toilet operation. This data undergoes initial processing including conversion and signal conditioning before transmission to the control unit 108. The monitoring state represents the system's standard operating mode between specific detection events.

[0119] At operation 215, system conducts sound analysis. Control unit 108 processes the received sound data using established signal processing techniques. This analysis includes filtering of environmental noise, extraction of relevant frequency components, and comparison with stored reference patterns. The analysis stage prepares sound data for condition detection.21PH4385WO01

[0120] At operation 220, system enters an analysis decision point. Control unit 108 evaluates processed sound data against multiple criteria to determine appropriate operational paths. This evaluation considers deviations from normal sound patterns, characteristics of detected sounds, and correlation with known condition signatures.

[0121] At operation 225, when analysis indicates normal operation, the system continues monitoring. Control unit 108 maintains active sound monitoring while updating operational statistics. This state allows for continuous data collection while maintaining readiness for condition detection.

[0122] At operation 230, system enters clog detection analysis. During this operation, control unit 108 processes sound data specifically for patterns indicating flow restrictions. The analysis examines the amplitude and duration of flush sounds, comparing them with normal flush patterns stored in memory. The clog detection algorithms evaluate multiple characteristics of the sound data, including frequency distribution and temporal evolution of the flush sounds.

[0123] At operation 235, system performs clog condition validation. Control unit 108 applies verification procedures to confirm detected clog conditions. This validation includes analysis of multiple flush cycles, measurement of sound persistence, and correlation of detected patterns with known clog signatures. The validation process reduces false detections by requiring consistent indication of clog conditions across multiple criteria.

[0124] At operation 240, system executes leak detection analysis. The control unit 108 processes sound data for patterns associated with water leakage. This analysis focuses on detecting water movement sounds during periods when the toilet may be inactive. The leak detection algorithms evaluate the persistence and characteristics of water sounds between and during normal flush operations.

[0125] At operation 245, system conducts leak condition validation. Control unit 108 implements verification procedures specific to leak detection. This includes monitoring the duration of detected water sounds, analyzing their frequency characteristics, and22PH4385WO01correlating sound patterns with normal background noise levels. The validation enables detected leaks represent actual water loss rather than environmental sounds.

[0126] At operation 250, system generates alerts based on validated conditions.Control unit 108 formulates appropriate alert messages containing condition information, severity levels, and recommended actions. The alert generation process includes selection of notification methods, preparation of alert content, and initiation of communication procedures.

[0127] The system maintains return paths from each detection state to the monitoring state. After condition processing and alert generation, control unit 108 resumes normal monitoring operations while retaining detection data for historical analysis. These return paths enable continuous system operation while maintaining detection capabilities.

[0128] The transition between states occurs based on specific trigger conditions. Control unit 108 manages these transitions through predetermined criteria including sound pattern matching and validation thresholds.

[0129] During all operations, system maintains data logging functions. Control unit 108 records operational data including state transitions, detected conditions, and system responses. This logged data supports historical analysis and system performance while providing documentation of detected events.

[0130] The flow of operations incorporates parallel processing capabilities. Control unit 108 may simultaneously monitor for multiple condition types while maintaining normal operational monitoring. The system may implement adaptive timing for various operations. The duration of analysis and validation procedures adjusts based on detected conditions and signal characteristics. This adaptation helps with system response while maintaining detection accuracy.

[0131] FIG. 3 illustrates a mobile application interface 300 displayed on a mobile device 302. The mobile device 302 comprises a display screen showing toilet monitoring system interface. Mobile device 302 may be any portable computing device capable of running the monitoring application, such as a smartphone or tablet.23PH4385WO01

[0132] The interface displayed on mobile device 302 organizes monitoring information into sections. At the top of the interface, a status section 310 presents the current system state. For example, status section 310 may display " Toilet Operating Normally" during standard operation as an example illustration of text appearing, with text formatting for the mobile device 302 screen dimensions.

[0133] Below the status section, a current condition section 320 provides detailed operational information. This section shows the timestamp of the last system check, for example, a display can be shown such as " Last Check: 10:30 AM" along with the current detection status " No Issues Detected." Current condition section 320 updates automatically as the system performs ongoing monitoring.

[0134] The lower portion of the interface contains an alert history section 330, displaying a chronological record of system events. This section lists previous alerts, for example, this can be shown as: " Previous Alert: Clog Detected" with the timestamp " Yesterday 3:45 PM - Resolved" and " Previous Alert: Leak Detected" marked "2 Days Ago: 8:15 AM - Resolved." The alert history maintains scrollable access to past system events.

[0135] Mobile device 302 presents these interface sections through a touch-responsive display. Users interact with the interface through standard mobile device gestures, accessing different information views and interface functions. The interface adapts to mobile device 302 screen orientation and size while maintaining consistent information organization.

[0136] Mobile device 302 receives information updates through wireless communication with control unit 108 of toilet 100. These updates refresh the display sections automatically to show current information presentation. The wireless connection enables real-time system monitoring through the mobile device 302.

[0137] In some embodiments, the mobile application on mobile device 302 may provide customizable alert notifications. Users may select notification methods including visual alerts, audible signals, or device vibration. The notification settings allow configuration of alert priorities and delivery methods based on condition types.24PH4385WO01

[0138] In some embodiments, the interface displayed on mobile device 302 may incorporate graphical data representations. These representations may include water level trends, detection frequency charts, or system performance metrics. The graphical elements utilize mobile device 302 display capabilities to present system data in visual formats.

[0139] In some embodiments, mobile device 302 may support multiple linked toilet monitoring systems. The interface enables switching between different monitored locations while maintaining separate status tracking and alert histories. Users may group monitored systems by building, floor, or other organizational structures.

[0140] In some embodiments, the interface on mobile device 302 may provide maintenance scheduling functions. Users may schedule maintenance activities, track completion status, and maintain service records through the mobile application. The scheduling functions integrate with mobile device 302 calendar capabilities.

[0141] In some embodiments, the interface may provide export functions for system data. Users may generate reports from mobile device 302, sharing monitoring data through standard mobile device communication methods. These functions support documentation requirements and communication with maintenance personnel.Conclusion

[0142] Many modifications and other embodiments of the disclosures set forth herein will come to mind to one skilled in the art to which these present disclosures pertain having the benefit of the teachings presented in the foregoing descriptions and the associated drawings. Therefore, it is to be understood that the embodiments of the present disclosure are not to be limited to the specific embodiments disclosed and that modifications and other embodiments are intended to be included within the scope of the present disclosure. Moreover, although the foregoing descriptions and the associated drawings describe example embodiments in the context of certain example combinations of elements and / or functions, it should be appreciated that different combinations of elements and / or functions may be provided by alternative embodiments without departing from the scope of the present disclosure. In this regard, for example, different combinations of elements and / or25PH4385WO01functions than those explicitly described above are also contemplated within the scope of the present disclosure. Although specific terms are employed herein, they are used in a generic and descriptive sense only and not for purposes of limitation.26PH4385WO01

Claims

CLAIMS1. A toilet monitoring system comprising:a sensor unit configured to be mounted to a toilet;a control unit comprising:a processor operatively coupled to the sensor unit; anda memory storing sound parameter data;wherein the control unit is configured to:receive sound data from the sensor unit;analyze the sound data to identify a toilet operating condition; and generate an alert based on identified toilet operating conditions.

2. The toilet monitoring system of claim 1, further comprising:a communication module operatively coupled to the control unit;wherein the alerts are transmitted through the communication module to indicate identified toilet operating conditions.

3. The toilet monitoring system of claim 1, wherein the toilet operating conditions comprise:a normal flush operation;a clog condition indicated by altered water flow sounds;a leak condition indicated by water flow sounds between flush operations; and tank fill operation.

4. The toilet monitoring system of claim 1, wherein the control unit is configured to perform an initialization process comprising:recording a sound data during multiple flush operations;determining a normal sound patterns for flush operations; andstoring the normal sound patterns in memory.

5. The toilet monitoring system of claim 4, wherein the normal sound patterns comprise:flush initiation sounds;water flow sounds during bowl evacuation;tank refill sounds; andcycle completion sounds.

6. The toilet monitoring system of claim 1, wherein analyzing the sound data comprises:comparing detected sounds to the normal sound patterns;identifying deviations from the normal sound patterns; anddetermining whether deviations indicate the toilet operating condition.

7. The toilet monitoring system of claim 1, wherein identifying toilet operating conditions comprises detecting:27PH4385WO01changes in evacuation sound patterns indicating the clog conditions; persistent water movement sounds indicating the leak conditions;incomplete flush cycle patterns; andabnormal tank refill operations.

8. The toilet monitoring system of claim 7, wherein detecting the clog conditions comprises:identifying increased amplitude in sound during evacuation;detecting extended evacuation duration;recognizing interrupted evacuation patterns; andverifying bowl clearance sounds.

9. The toilet monitoring system of claim 7, wherein detecting the leak conditions comprises:monitoring for water movement during inactive periods;analyzing sound persistence patterns;identifying cyclical water sounds; anddetecting unauthorized tank refill operations.

10. The toilet monitoring system of claim 1, wherein the sensor unit comprises at least one acoustic sensing element.

11. The toilet monitoring system of claim 1, further comprising multiple sensor units configured to:capture sounds from different locations on the toilet;provide sound distribution data; andimprove detection accuracy.

12. The toilet monitoring system of claim 1, further comprising:a valve control module operatively coupled to the control unit,wherein the control unit is configured to send signals to the valve control module based on identified operating conditions13. The toilet monitoring system of claim 12, wherein the valve control module is configured to:modify flush water volume;adjust flush duration;initiate additional flush cycles; andstop water flow in response to detected conditions.

14. The toilet monitoring system of claim 1, wherein generating the alert comprises: determining alert priority levels;selecting alert types based on condition severity;28PH4385WO01initiating appropriate alert; andlogging condition details.

15. The toilet monitoring system of claim 14, wherein the alert types comprise:visual indicators,audible alerts;wireless notifications;maintenance staff alerts; anduser application notifications.

16. The toilet monitoring system of claim 1, further comprising:a wireless communication configured to:transmit alert signals;receive configuration updates;communicate with a user application; andinterface with building management systems.

17. The toilet monitoring system of claim 1, wherein the sensor unit mounting location comprises a position for sound detection.

18. The toilet monitoring system of claim 1, further comprising:a second sensor unit configured to detect vibrations from toilet operation; and wherein the control unit is further configured to:receive vibration data from the second sensor unit;analyze a combination of sound and vibration data; andidentify toilet operating conditions based on the combined analysis 19. The toilet monitoring system of claim 18, w’herein analyzing the combination of sound and vibration data comprises:comparing timing of detected events; andconfirming condition across sensors.

20. The toilet monitoring system of claim 2, wherein the communication module comprises connectivity with a mobile device application.29PH4385WO01

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