Abstract:
A room monitoring device designed and intended to detect a bowel movement (BM) of a person occupying the room, such as a baby or infant or an adult with special needs or in a care facility. The device tests the air for particular substances such as, but not limited to, methane and hydrogen sulfide. The test is performed multiple times per minute to reduce the chances of a false-positive detection. Once the device detects a positive BM, it alerts a user via Wi-Fi message, SMS text message, visual alerts (e.g., flashing lights), and/or audio alerts. This device may be paired with existing monitoring devices, such as a baby monitor with a remote camera.

Description:
CROSS-REFERENCE TO RELATED APPLICATION 
       [0001]    This application claims priority in U.S. Provisional Patent Application No. 61/931,880, filed Jan. 27, 2014, which is incorporated herein by reference. 
     
    
     BACKGROUND OF THE INVENTION 
       [0002]    1. Field of the Invention 
         [0003]    The present invention relates generally to a gas monitoring apparatus, and more specifically to an apparatus for monitoring humans, such as babies and infants, for bowel movements while they sleep using gas detecting elements. 
         [0004]    2. Description of the Related Art 
         [0005]    Often children wake crying during the night. This is often caused by a bowel movement (BM) happening during the night, and diaper rash or other discomforts can wake the child. It is impossible for a parent to know whether the child needs to have their diaper changed without physically checking the diaper for a BM. This can be detrimental when the child is crying for no reason, but the parent is forced to wake and check the child anyway. 
         [0006]    Older adults in care or special needs patients would similarly benefit from a passive monitoring device to alert healthcare workers when the patient has suffered a BM. The worker would be alerted and could aid the patient to prevent bed sores etc. 
         [0007]    What is needed is a method of actively monitoring a sleeping child and indicating if a bowel movement has occurred through the use of sensors which prevents unnecessary checking of diapers. 
         [0008]    Heretofore there has not been available a system or method for detecting bowel movements with the advantages and features of the present invention. 
       SUMMARY OF THE INVENTION 
       [0009]    The present invention generally provides a sensor apparatus for detecting gasses associated with bowel movements, such as, but not limited to, methane or hydrogen sulfide. In a preferred embodiment, the detector will take multiple samples over a desired time period to avoid false positives. The sensor apparatus is capable of alerting parents or others when a bowel movement is detected via sounds, lights, wireless message to a mobile device, or other means. This allows the sensor apparatus to be paired with other existing products (e.g., baby monitoring systems) without requiring additional equipment. 
     
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         [0010]    The drawings constitute a part of this specification and include exemplary embodiments of the present invention illustrating various objects and features thereof 
           [0011]      FIG. 1  is a diagrammatic representation of a preferred embodiment of the present invention and elements with which it can communicate through. 
           [0012]      FIG. 2  is a diagram showing a simple relationship between various components of an embodiment of the present invention. 
           [0013]      FIG. 3  is a diagrammatic representation of a sample status screen of a graphical user interface associated with the present invention. 
           [0014]      FIG. 4  is an alternative representation thereof 
           [0015]      FIG. 5  is a diagrammatic representation of a floorplan having an embodiment of the present invention installed throughout. 
           [0016]      FIG. 6  is a flowchart diagramming the steps taken in practicing and embodiment of the present invention. 
       
    
    
     DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS 
     I. Introduction and Environment 
       [0017]    As required, detailed aspects of the present invention are disclosed herein, however, it is to be understood that the disclosed aspects are merely exemplary of the invention, which may be embodied in various forms. Therefore, specific structural and functional details disclosed herein are not to be interpreted as limiting, but merely as a basis for the claims and as a representative basis for teaching one skilled in the art how to variously employ the present invention in virtually any appropriately detailed structure. 
         [0018]    Certain terminology will be used in the following description for convenience in reference only and will not be limiting. For example, up, down, front, back, right and left refer to the invention as orientated in the view being referred to. The words, “inwardly” and “outwardly” refer to directions toward and away from, respectively, the geometric center of the aspect being described and designated parts thereof. Forwardly and rearwardly are generally in reference to the direction of travel, if appropriate. 
         [0019]    Additional examples include a mobile smart device including a display device for viewing a typical web browser or user interface will be commonly referred to throughout the following description. The type of device, computer, display, or user interface may vary when practicing an embodiment of the present invention. Said terminology will include the words specifically mentioned, derivatives thereof and words of similar meaning. 
         [0020]    Gasses associated with bowel movements which would trigger the present invention include, but are not limited to: Indole (C8H7N), 3-methylindole (C9H9N), hydrogen Sulfide (H2S), Amines, Ethanoic Acid (C2H4O2), Butyric Acid (C4H8O2), and methane (CH4). These compounds are included amongst a number of outputs from human solid waste. For the purposes of the present application, any or all of these outputs should be considered to be used or to be detected for by the sensor system embodying the present invention. 
         [0021]    Two types of gaseous sensor systems exist in the market place: (1) electrochemical sensors; and (2) metal oxide semiconductor (MOS) sensors. Either sensor type could be used in an embodiment of the present invention; however an MOS sensor is utilized in the preferred embodiment. The preferred sensor, MiCS-5524, is capable of measuring and detecting volatile organic compounds in a relative manner, such as by detecting changes in the environment, which provides an output of resistance change. The sensor can measure virtually any reducing and/or aromatic gas: such as ammonia, carbon monoxide, hydrogen sulfide etc., as well as any compound mentioned above. The MOS sensors are combusted by the presence of reducing gases at the sensor surface, and the release of electrons from these gases causes resistance across the sensor plate to drop. 
         [0022]    Odors from human waste relate to foods eaten, not age. The emissions are essentially the same between infants and adults, but the present application focuses our technology on the most common denominator: hydrogen sulfide, but other gasses must also be tested for. As is well known, infants less than  6  months that are breast feeding do not emit much if any odor. Detecting latent odorless gasses would be highly beneficial to the purpose of the present invention. 
       II. Preferred Embodiment Bowel Movement (BM) Sensor System  2   
       [0023]    Referring to the figures in more detail,  FIG. 1  shows a diagrammatic representation of a preferred BM sensor system  2 , including a BM sensor/detector  4  for detecting a BM based upon gasses in the room, a mobile device  6  for receiving alerts from the BM sensor, and a wireless network  8  over which the mobile device  6  and the detector/sensor  4  communicate. 
         [0024]    The detector  4  can also be used in conjunction with standard monitoring devices  10 , such as a baby monitor with audio and/or video surveillance. Similarly, the detector  4  may access the wireless network  8  directly, or it may interact with a network relay  40  device for communicating between the network  8  and the detector  4 . Alternatively, the relay  40  may only allow direct communication between the mobile device  6  and the detector  4 , wherein other network access is limited or cut off 
         [0025]    As shown, the detector  4  includes sensors for detecting gas within the room, such as a methane sensor  12 , a hydrogen sulfide sensor  14 , or other sensors capable of detecting gasses which are emitted as part of solid or liquid human waste for detection with the BM detector  4 . A microprocessor  16  receives data from the sensors  12 ,  14  and determines whether or not an alert should be sounded based upon preset or predetermined thresholds. The microprocessor can facilitate an alert by creating a noise amplified through a speaker  18 , by flashing one or more lights  20  located on the detector  4 , or by sending a wireless alert to the mobile device  6  using a Wi-Fi antenna  22  or other means of communication with the mobile device  6 . 
         [0026]    To increase the range of notifications, the audio or visual alerts created by the detector  4  through the use of the speaker  18  or the lights  20 , respectively, a monitoring device  10  can be used. This monitoring device may or may not include a graphical user interface  34 , a separate speaker or alarm  36  for the audio alert, and a remote camera  38  for the visual alert. This monitoring device  10  could be a standalone baby monitoring system to alert a parent if the baby is crying or not sleeping. 
         [0027]    The mobile device  6 , such as a standard smartphone device, includes a separate microprocessor  24 , a speaker  26 , an antenna  28 , a graphical user interface (GUI)  30 , and messaging software  32 . The GUI may be a touchscreen interface, and may allow the user to directly make changes to the settings of the detector  4  using wireless access through software. The messaging software may include typical SMS messages sent using a service associated with the detector  4 , or a completely separate software application or APP downloaded from a wireless network for use specifically with the detector  4 . 
         [0028]      FIG. 2  shows a relationship between the mobile device  6  and the detector  4 . The detector shown here includes controls  50  for accessing the settings of the detector directly. These settings can also be controlled wirelessly using the mobile device  6 . A typical GUI  30  display screen on the mobile device includes such features as: ambient status  42  of the room being monitored; alert statuses  44  associated with various chemical compounds typically associated with a BM; information “buttons”  46  for accessing information about each substance or air quality value being detected for; and a settings pulldown button  48  for choosing different views or altering software settings of the mobile device  6  or of the detector  4 . 
         [0029]    The detector  4  may include controls  50  which allow direct access to the software or hardware settings of the detector. A speaker  18  located somewhere on the body of the detector delivers audio alerts, while a display or light  20  delivers visual alerts. Here, the GUI is also shown to include settings information that may be accessible via the mobile device  6 . The GUI could simply flash when an alert is detected, may display the settings of the detector, or may otherwise give visual alerts to the user. 
         [0030]      FIGS. 3 and 4  are examples of GUI display screens  52  that may be accessible via the mobile device  6  or the display portion of the detector  4 .  FIG. 3 , for example, shows the information status of H2S (Hydrogen Sulfide) being detected in the room by the detector  4 . This display screen may be accessed by selecting the information button  46  associated with H2S on a home screen as shown in  FIG. 2 . 
         [0031]    The status  54  of the selected element or room factor (e.g., temperature, gas presence, humidity) is displayed prominently, along with a checkmark or other indicator that everything is normal, or another indicator if the levels of the selected room factor or element are outside the set parameters. The parameters may be set using a scrolling bar  58  for determining when the alarm will be triggered by that room factor, if at all. A description of the element or room factor being reviewed is shown at  56 .  FIG. 4  shows a similar display, using air temperature as an example. Here, the sliding bar  58  includes an upper range and a lower range, allowing the user to customize that particular room factor even further. 
         [0032]      FIG. 5  shows a floorplan  60  for a building, such as a home, hospital, or healthcare facility. Three rooms  62 . 1 ,  62 . 2 ,  62 . 3  are displayed, and three detectors  4 . 1 ,  4 . 2 , and  4 . 3  are placed in the rooms respectively. A central relay  40  relays all data received from the detectors  4 . 1 ,  4 . 2 ,  4 . 3  to a stationary or mobile computing device, or multiple devices, to alert staff of a BM or other room irregularity. This setup is particularly useful in an adult care facility. 
         [0033]      FIG. 6  is a flowchart demonstrating some steps taken while practicing a preferred embodiment of the present invention. The process starts at  102 . A sensor is placed in a location at  104 , preferably in a child or patient&#39;s room where a BM may occur while that person is sleeping. A check is performed at  106  whether an existing room monitoring device, such as a baby monitor, exists. 
         [0034]    If an existing room monitoring device exists at  106 , there is a determination at  108  if there is also a remote video camera associated with the existing room monitoring device. If yes, then the visual notification feature of the sensor is activate at  110 . Either way, an audio notification is activated at  112 . 
         [0035]    Regardless of whether an existing monitor exists or not at  106 , the sensor device is synched with one or more mobile computing devices at  114 . This allows alert messages or other communication to be sent from the sensor/detector device and the mobile device(s). The user may also set desired settings  116  of the detector using the mobile computing device or the detector itself. These settings are the preferences for how sensitive the detector will be, and will be the basis for the ambient room atmosphere. 
         [0036]    After this is all setup, the sensor actively monitors the ambient atmosphere of the room at  118 . A check is constantly performed at  120  to determine whether the ambient room factors are within normal levels. If yes, then the cycle continues. 
         [0037]    Once an abnormality is determined at  120 , alert notifications must be sent out by the sensor device. If there is an existing monitoring device at  122  and a remote camera is present at  124 , then the sensor will flash, light up, or otherwise activate a visual display that can be seen via a remote monitoring device connected to the remote camera at  126 . At the same time, audio alerts, such as beeps or buzzing noise, will be produced by the sensor device at  128 . This also will be sent through the monitoring device and played on a speaker associated with the existing monitoring device. 
         [0038]    At the same time, or if there is no exiting monitor in place, a wireless notification is sent to the mobile device(s) associated with the sensor/detector at  130 . These notifications may be sent via SMS messaging, or software specifically associated with the sensor/detector device, or through other means (e.g., automated telephone call). Once all alerts are sent, the process ends at  132 . The process may automatically revert to a detection of ambient atmosphere at  118  once the issues associated with the alert have been addressed, or the system may require manual reset. 
         [0039]    It is to be understood that while certain embodiments and/or aspects of the invention have been shown and described, the invention is not limited thereto and encompasses various other embodiments and aspects.