CROSS-REFERENCE TO RELATED APPLICATIONSThis application is a continuation of U.S. patent application Ser. No. 13/476,258, filed May 21, 2012, which claims the benefit of U.S. Provisional Application Appln. No. 61/488,045, filed May 19, 2011, the contents of both incorporated herein by reference.
FIELD OF THE INVENTIONThe invention relates to a system and method for delivering oxygen and/or clean air or other fluids and more particularly to a hands and eyes-free, voice-activated system and method which minimizes or eliminates the interruption of the user's then, on-going activities.
BACKGROUND OF THE INVENTIONThere are tens of thousands of skiers and snowboarders who go from near sea level to high elevation in the Rockies and Sierras to ski for a relatively short time. Therefore they must ski (snowboard) without having had the opportunity to acclimatize to the high elevation, which takes at least several days. This is also true in the case of mountain climbers, trekking devotees, mountain bicyclists and other high altitude enthusiasts.
Nowadays, if such a user wanted to obtain supplemental oxygen under these circumstances, he would typically have to stop his or her activity, access a hand-held canister of oxygen (which often would require the user to discontinue his activity, release his hands from his ski poles (or walking stick, bicycle, etc.)), and possibly take off his gloves in order to obtain the needed oxygen. This process by its very nature is often self-defeating, since the user needs the oxygen while he is expending energy and would prefer to continue his activity without frequent interruptions to “catch his breath”.
Also, the 70 or so million Americans (“baby boomers”) fast approaching retirement age, as a group, are known for their desire to maintain maximum functionality and mobility regardless of age. However, as individuals age, their maximum heart rate on average slows down on a linear basis—the maximum rate/minute on average is 220 minus the individual's age. Maximum heart rate is a good proxy for an individual's oxygen carrying capacity. As they continue to age, many of this cohort will need oxygen supplementation, optimally on a convenient hands-free and eyes-free basis in order to maintain their preferred activity level.
Also, many already are mobility compromised (e.g., those in so-called power chairs and scooters, those that are bedridden, blind, quadriplegic, or otherwise disabled). For them, to control and monitor the delivery of oxygen without having to divert their hands and eyes from controlling their mobility device would be ideal.
Furthermore, many in this group are already experiencing problems with arthritis. For those whose hands are arthritic, controlling the regulation of their medication delivery system by hand is a problem that this invention will solve.
Also, there are those on daily oxygen or other therapy regimens; and those who periodically work in dangerous atmospheric conditions (e.g., firemen). To enable them to control and monitor the status of their device on a hands-free and eyes free basis without having to interrupt their activities would be invaluable.
Various patents address systems that are designed to permit the wearer to breathe oxygen or purified air or administer other substances or medications. Consider the following:
Sanders, U.S. Pat. No. 5,582,164, discloses a portable gas delivery system that includes a gas storage assembly that is connected to a nose piece using flexible tubing. The gas storage assembly includes a strap that enables it to be readily carried by the person using this system.
AmRhein, U.S. Pat. No. 4,996,983, discusses a portable oxygen delivery system in which gas storage containers are incorporated into the temples on eyeglasses. Air delivery tubes extend around the wearer's ears to a nose plug that is placed in the wearer's nose.
Peppler, U.S. Pat. No. 5,193,534; and Timmons et al., U.S. Pat. No. 4,559,941, also describe incorporating an oxygen delivery system into eyeglasses. The oxygen is delivered from a storage container to the temples on the eyeglasses. The oxygen is then routed to a nosepiece through the eyeglasses.
Ducros, U.S. Pat. No. 5,400,934 describes a rucksack, or backpack, making it possible to drink, or inhale oxygen, while walking.
Izuchukwu, et al., U.S. Pat. No. 6,526,968, discusses an air delivery system that is incorporated into a utility belt that is worn by the user. The utility belt includes a pack for storing the compressed gas and a port for connecting to a mask using flexible tubing.
McDonald, et al., U.S. Pat. No. 6,595,207, describes an oxygen diffuser for a lightweight oxygen delivery system for a patient, the oxygen delivery system being of the type comprising a mount for seated engagement on a patient's head or ear, an elongated tubular boom for oxygen delivery secured at one end to the mount and having the diffuser secured to the other end, the diffuser to deliver oxygen passed through the boom to a space in the vicinity of the patient's nose and mouth.
McCombs, et. al., U.S. Pat. No. 6,065,473, describes a non-contact gas dispenser comprising a head set apparatus, a gas source and a conduit for directing the desired gas to a region proximate to the user's nose and mouth. The gas source preferably is a pressure swing adsorption apparatus that allows the user to select one of at least two pre-determined settings of product gas, each setting having a distinct concentration and flow rate different from the other setting(s).
Warren, U.S. Patent Application No. US 2009/0000618, addresses a portable gas delivery system that includes a mouthpiece or nosepiece, a gas delivery pack and a medical cannula tubing assembly. It is adapted for use with a wireless transceiver for use with a cellular telephone or a personal music system and connected headphones.
Radivojevic, U.S. Patent Application No. US 2010/0263664 A1, addresses a portable oxygen delivery device and method for delivering oxygen to a mobile user. The device includes solar cells that harvest energy and instantaneously powers an electrolysis unit on user-demand for purpose of oxygen refreshment. The oxygen gas produced by the electrolysis unit is conveyed by tubing to an area in the vicinity of the user's mouth and nose. The solar cells and the electrolysis unit are integrated in a garment worn by the user. Note that although this device mentions the possibility (see paragraph 0081) of starting and stopping the electrolysis process in accordance with circumstances by the user, it does not imply in any way that a user controlled voice operated mechanism would be involved in this process or in the process of delivering the gas to the user. Note in this regard that the application states in the last two sentences of paragraph 0081 that,
“[i]n particular, the control can control the operation of the portable auction delivery device in accordance with receipt of a messages or a command string from a remote device or service. Such a service maybe located at a hospital, or maybe a server that monitors the data on air quality at the actual location of the mobile phone.”
Horton, U.S. Patent Application No. US 2004/0231667 A1 relates to a medicament dispenser including a medicament container having a dispensing mechanism actuable by an actuator. The dispenser is particularly suitable for use as an inhalation device.
None of those listed, and others, including, Kwok (US 2010/0319689 A1, a sleep disorder related invention), and Osborne(U.S. Pat. No. 7,814,903) and Reynaud(U.S. Pat. No. 6,997,178) (each aircraft oxygen mask related inventions) however, incorporate a mechanism for controlling the delivery of the gas or other substance on a convenient voice activated basis (via a microphone or otherwise) or monitoring the status of the device on a hands-free and eyes-free basis by means of a voice activated response system using a headphone or other voice response mechanism directly to the user's ear.
It is therefore a primary object of this invention to provide an oxygen delivery system which responds to voice commands to begin and end the delivery of oxygen to a user.
It is a further object of the invention to provide such a system where certain properties of the delivery system, such as oxygen remaining, are communicated by detectable sensory signals including sounds representing widely known words.
It is a still further object of the invention to provide a hands-free and eyes-free, voice-activated oxygen delivery device, so as to permit the user to engage in his or her activity without necessarily stopping in order to catch his or her breath.
It is yet another object, to provide such a system which is convenient to carry and operate, hands-free and eyes-free, while in place on the person who is engaged in his or her activity.
SUMMARY OF THE INVENTIONTowards the accomplishment of these and many more objects and advantages, some of which will be readily apparent from the reading of the following, alone and together with the accompanying drawings, there is disclosed a voice responsive fluid delivery, controlling and monitoring system (and method) comprising a storage means having a quantity of fluid stored therein. In an anticipated preferred embodiment, this would be a gas such as air or oxygen. Means for releasing the fluid from the storage means interconnects with means for delivering the released fluid to the mouth and/or nose area of a user of said system.
The invention also includes means for monitoring at least a first property or characteristic of the stored fluid such as quantity remaining.
A first interconnect means is disposed between a voice responsive means and the means for releasing the fluid.
A second interconnect means is disposed between the voice responsive means and the means for monitoring the stored fluid.
The invention includes a third interconnect means disposed between the voice responsive means and the mouth area of an operator of the system whereby the transmission of voice commands from the operator to the voice responsive means is facilitated.
The voice responsive means device is adapted to respond to a first set of voice commands to produce a corresponding first set of electrical signals. This first set of electrical signals is supplied via the first interconnect means to the means for releasing the fluid. The latter is adapted to respond to respective ones of the first set of electrical signals in a corresponding respective way whereby the flow of fluid through the means for delivery is controlled.
The voice responsive means is further adapted to respond to a second set of voice commands to produce a corresponding second set of electrical signals. The second set of electrical signals is supplied via the second interconnect means to the means for monitoring the stored fluid. The monitoring means for monitoring the status of at least a first property or characteristic of the stored fluid is adapted to respond to respective ones of the second set of electrical signals in a corresponding respective way by generating a respective electrical signal of a third set of electrical signals evidencing the status of at least the first property sought to be monitored. The respective electrical signal of this third set of electrical signals that is prompted is communicated to the voice responsive means, which is still further adapted to generate, in the preferred embodiment, a respective sound for the respective one of the third set of electrical signals it receives.
A fourth interconnect means is disposed, in the preferred embodiment, between the ear area of the operator and the voice responsive means whereby the respective sound is transmitted to the ear area.
Preferably, the voice responsive means forms a part of a mobile phone such as today's Smartphone (for example, iPhone, android, blackberry, etc.).
Preferably, the voice responsive means is adapted to be programmed with a software application. This directs the voice responsive means to produce respective ones of the first set of electrical signals responsive to corresponding ones of the first set of voice commands. The software application directs the voice responsive means to produce respective ones of the second set of electrical signals responsive to corresponding ones of the second set of voice commands. The same or a second software application directs the voice responsive means to produce a respective sound, in the preferred embodiment, corresponding to a respective one of the third set of electrical signals.
Wireless technology such as Bluetooth can be employed to implement the first, second, third and fourth interconnect means. However hard-wired technology can also be employed, alone or with the wireless technology, with more elaborate care taken to avoid entanglement in the various wires running about the body.
In the monitoring mode of the preferred embodiment, the voice responsive means produces a “respective sound” corresponding to the “respective one of the third set of electrical signals”, to evidence the status of the property of the fluid sought to be monitored, for example, the volume of fluid remaining. Within the broader scope of the invention, as set forth in claim1, a “further respective signal” is generated and transmitted to “an area in near proximity to a sensory organ”. The latter could be the user's eyes where the “further respective signal” presents itself as a visual display (perhaps on a watch-like device on the wrist); or as a vibration, again felt at the wrist, perhaps. The vibration could be pulsed a number of times or otherwise adapted so as to meaningfully relate the status of the characteristic sampled.
BRIEF DESCRIPTION OF THE DRAWINGSA fuller understanding of the invention and its scope will be had from a reading of the following description especially when it is considered together with the accompanying drawings where:
FIG. 1 is a schematic depiction of one embodiment of the invention.
FIG. 2 is a perspective view of the embodiment ofFIG. 1 in place on a user.
FIG. 3 is a detailed block diagram depicting the elements of one embodiment of the present invention.
FIG. 4 depicts in table form a simple three bit logic scheme employed in the present invention.
FIG. 5 is a logic drawing of an even-parity generator-checker circuit.
FIG. 6 is a schematic view of a portion of the monitoring function of the present invention.
FIG. 7 is an alternate embodiment of the invention.
FIG. 8 is a perspective view of one embodiment of a facial mask which can be used to implement a part of the invention.
FIG. 9 is a perspective view of the facial mask ofFIG. 8 which has been adapted to include a shutter member, whose open/close position can be controlled by an electrical signal.
FIG. 10 is a partial, elevation view of the facial mask ofFIG. 9 which depicts lateral movement of a shutter piece that can open or close-off air flow through the shutter member.
DESCRIPTION OF THE PREFERRED EMBODIMENTReferring now toFIG. 1, the elements of a voice responsive fluid delivery andmonitoring system10 are depicted in schematic form. In the basic variant, ideal for stressful and/or high altitude activities such as trekking, skiing, cycling, etc., there are several essential elements. Thesystem10 includes a storage means12. This typically would be a supply of oxygen and includes any of the following:
- (a) an easily replaceable canister or canisters which would be carried by the user in a camelback style backpack, shoulder harness or holster (32 inFIG. 2);
- (b) a standard oxygen tank or cylinder which would be carried by the user on a camelback style backpack, shoulder harness or holster;
- (c) a portable oxygen concentrator (see, e.g., Radivojevic, Patent application #US 20100263664 A1 identified above) which would be carried by the user on a camelback style backpack, shoulder harness or holster, or
- (d) a similar gas source.
Means14, including a valve assembly and associated electronics, is employed to release the fluid from the storage means12.Flexible tubing16, delivers the released oxygen from the storage means12 to the mouth and/or nose area of a user of thesystem10. The distal end of the tubing terminates in anasal interface member18 of known construction proximately disposed to the user's nose.
Means for monitoring20 at least a first property, such as quantity remaining of the fluid (oxygen) stored in the storage means12, is interposed in series in the path oftubing16 between thevalve assembly14 and thenasal interface member18.
Voice responsive means including a voice controlleddevice22 provides the central control point for the system. In the preferred embodiment, the voice controlleddevice22 is a Smartphone such as an iPhone or Android type. Thevoice control device22 is programmed with an App that accepts simple voice commands to produce a uniquely corresponding first set of electrical signals. Alternately a voice recognition circuit can be placed on the electronic board52 (seeFIG. 3 and discussion below).
A first interconnect means or communication link24 is disposed between the voice controlleddevice22 and themeans14 for releasing the fluid from the storage canister(s).
A second interconnect means or communication link26 is disposed between the voice control device and the means for monitoring20 at least a first property of the stored fluid. Still further, a third interconnect means orcommunication link28 is disposed between the voice controlleddevice22 and the mouth area of the user of said system whereby the transmission of voice commands from the user to the voice controlleddevice22 is accomplished. A fourth interconnect means orcommunication link30 is disposed between the voice controlleddevice22 and a sensory organ, or signal detection member of the user's body, here shown as the ear.
The voice controlleddevice22 is adapted through the use of appropriate voice recognition software, installed in the form of an App, to generate a first set of electrical signals based on a particular command word or words. For purposes of this invention, these include: START, POWER ON, AIR LOW, AIR MEDIUM, AIR MAX, STOP, and POWER OFF. To minimize battery power drain, the POWER ON and POWER OFF commands enable the circuitry powering the electromechanical device associated with the fluid releasing function described below. Besides this additional power requirement, the electronics are continually powered by the dc power source but the quiescent circuit current demand is sufficiently low as to not cause a concern about an excessive power drain. For the circuitry and electro-mechanical device employed, the system power requirements call for a 22 V DC supply with a current capacity of up to 1 Amp. The system would be powered by a rechargeable battery, replaceable battery and/or a solar battery.
After the voice recognition software is installed, the user pre-records these commands and those associated with the monitoring function, onto the voice recognition device via instructions provided with the App. A suitable software application for the iPhone Smartphone is available from Nuance Communications, Inc., located at 1 Wayside Road, Burlington, Mass. 01803.
The first set of electrical signals is communicated to the means for releasing the fluid14 via wireless or hard-wire electrical connections. The voice controlleddevice22 includes circuitry similar to the Bluetooth® headset which allows for transmission of digital data as well as vocal sounds, except, typically, its range is far greater than necessary in this application, since it routinely interfaces in a Wi-Fi environment.
The means for releasing the fluid14 comprise related electronic circuitry; an electro-mechanical device to convert a respective electrical signal to predetermined mechanism movement, typically a specified aperture in thevalve assembly14; and a valve-stem engaging mechanical member responsive to the electro-mechanical device to enable the turning of the valve to a predetermined position based on the respective vocal command (AIR LOW, AIR MEDIUM or AIR MAX) from the user so as to release the fluid (oxygen) in the prescribed amount.
The user when he desires to check on the status, for example, the amount of the stored fluid remaining, utilizes a second set of voice commands to accomplish that. These include, for example, START, VOLUME, STOP. These voice commands are received by the voice controlleddevice22 via the headset, and produce a corresponding second set of electrical signals. The signals are also supplied via the second interconnect means26 to, in this case, the means for monitoring the characteristics of the stored fluid. One of the voice commands (VOLUME) would associate with one of the characteristics of the stored fluid that the user desires to check. This might be, for example, the quantity remaining of the fluid. Alternately, during the time the fluid (oxygen) is being delivered at the level requested, the user can vocalize the voice command necessary to initiate the status check, that is, VOLUME.
In response to that particular voice command, again for example purposes, the quantity of the remaining fluid, a corresponding third set of electrical signals for the determined status of that characteristic is generated by the means for monitoring20. The corresponding electrical signals are communicated back to the voice controlleddevice22 via the second interconnect means26 which again might be a hard-wired or a wireless connection suitable for the transmission of digital electrical signals representative of the characteristic that is being checked.
The voice controlleddevice22 containing a further software program or a modification of the first voice recognition software, then generates a respective sensory signal, corresponding to the received, respective third set of electrical signals and transmits that signal to the sensory member via a fourth interconnect means30 disposed between the sensory member, again such as the user's ear, and the voice controlleddevice22. This would be the standard Bluetooth® connection. To convert the data represented by the third set of electrical signals to a signal from which a sound can be generated, the voice controlleddevice22, is programmed with software such as available from “Nextup Technologies, LLC” in Clemmons, N.C. Converting text to an audio representative signal on a Smartphone with Windows operating system is available from “Sayvoice Software Inc.”, also known as “Sayvoice Company”. Information as to this can be found at the “sayvoice.com” web site.
The received sensory signal is readily interpreted by the user as indicative of the status condition of the fluid property the user sought to monitor.
The voice controlleddevice22 includes a voice user interface which enables it, when suitably pre-programmed, to convert the sounds it receives into respective electrical data. Voice controlled devices such as a Smartphone, have such voice recognition circuitry internal thereto since the messages received must be converted to a data format for transmission via a Wi-Fi network. It may be preferable however to utilize a relatively simple and straight forward voice recognition circuit for the purposes of the present invention only. This would be accessed through a corresponding App to be installed on the Smartphone, when it is desired to use a Smartphone as part of the overall system. The earlier mentioned App (available from Nuance Communications, Inc.) for the iPhone type Smartphone can be used or adapted for this purpose.
Of course, if it is preferred to avoid modifying the Smartphone, the necessary circuitry similar, but again, simplified because of its limited function, can be employed on theseparate electronics board52. The circuitry again would be fashioned much like the circuitry in the Smartphone but due to its limited usage, presumably, it is much smaller in scale, capable of providing a communication link to and from the Smartphone; or, directly to a wireless or hard-wired headset, and able to receive data from the headset and the means for releasing and the means for monitoring portions of the present system. The design of such a speech to text system is set out in a paper located at the “Altera.com” web site.
Proceeding with the preferred embodiment that utilizes the Smartphone, the Smartphone would generate the respective first or second set of electrical signals and would transmit them to theelectronic circuit board52 typically positioned in close proximity to the fluid containing devices.
FIG. 3 depicts in block form, the various elements of such a system. These include theheadset40 shown as a so-called Bluetooth® headset which includes amicrophone42, aheadband44 and an ear-piece46. As noted above, astandard headset48 shown in phantom can be hard-wired via connectinglink50 to the Smartphone in a known way. The voice controlleddevice22, again, can transmit data to anelectronic circuit board52 either via a wireless interconnection or once again by way of hard-wire connection54, shown in phantom. If by wireless interconnection, the transmitted data is received atantenna55 oftransceiver56. The transceiver is of known construction and would be similar to that employed in theSmartphone device22. “LS Research LLC” of Cedarburg, Wis., markets their Bluetooth® compatible TiWi transceiver module. Relevant information is available at their website.
The software App that would be employed with the Smartphone, in addition to generating the electrical data corresponding to a particular voice command received from the headset, would include an appropriately timed gating or enabling signal which would allow for wireless transmission of the electrical and data packet corresponding to a particular voice command (using the wireless transceiver of the device22) to awireless transceiver block56 which is positioned on the circuit board52 (but shown separately for clarity); or, via the hardwire connection to the input of the appropriate relay onrelay card58.
Electronic circuit block52 in addition to thetransceiver block56, includes, as noted above, arelay card58, a steppermotor controller circuit60, and an exclusive or (XOR)gate module62.
For purposes of illustration,FIG. 4 sets forth in table form a three bit logic scheme providing three outputs, A, B and C. For purposes of this discussion, the various commands indicated in column64 correspond to equivalent logic expressions as set forth incolumn66. So for example, Power Off is represented by the three bit logic form 000; Power On by thelogic expression 100. This table can be expanded to a 4 bit logic format for additional commands related to the fluid release function if required.
Relay card58 includes a plurality of relays (electro-mechanical or solid state) as required to route received signals to the circuitry on thecontrol board52 as the circumstance dictates; and the means for monitoring20. In the mode being presently discussed, the oxygen delivery mode, an appropriate scenario is as follows. The user, who is out of breath, decides he needs oxygen. By saying POWER ON the Bluetooth® head-set and system will be activated. The user would next say, perhaps, AIR LOW. When the command is recognized and transmitted to thetransceiver56 on thecircuit board52, the corresponding relay on the relay board is enabled vialink61. The received data for that command is then routed to the motorcontroller circuit input70.
Themotor controller circuit60 receives the data signal and processes it and raises its power level to a point sufficient to drive the stepper motor to be discussed hereinafter. A suitable stepper motor controller IC is available from “Texas Instruments Incorporated”. It is marketed under their product identifier, “DRV8811”. Sufficient technical documentation on its power requirements and hook-ups can be found at Texas Instruments' web site.
This stepper motor controller circuit again processes the received signal. It includes two H-Bridge drivers as well as micro-stepping index logic to control a stepper motor's movement. The motorcontroller circuit device60 can be configured to allow for an eighth step, quarter step and half step incremental movements.
The powered-up signal is then processed by theexclusive logic block62. This circuit acts as a parity generator/checker circuit. The purpose of this circuit is to insure the received signal maintains its integrity and corresponds in fact to the voice command now being implemented. The logic diagram for the even-parity checker is shown inFIG. 5. Inputs labeled A, B and C represent the three logic inputs depicted in the table ofFIG. 4. If the P input is connected to logic “0”, the logic circuitry ofFIG. 5 will also allow the circuit to implement the parity generator. Output C represents the parity checker error signal.
When there is an error signal at output C the signal flow to the stepper motor contained within the “mechanical motor and gear box assembly”functional block68 is interrupted. The user sensing the failure of the system in that no oxygen is received, again vocalizes the START command which will result in a reset signal to theXOR circuit62. The AIR LOW command (in this illustration) will again be vocalized. Assuming the error is not enduring, the electrical signal will now reach the windings of the stepper motor portion of the motor andgear box assembly68.
The “mechanical motor and gear box assembly”function68 albeit not expressly depicted in the drawings, includes a stepper motor and appropriate gear assembly, as necessary. The latter couples the shaft of the stepper motor to thevalve cap70 of anair regulator valve72 positioned on the top of theoxygen containing canister12. The gearing assembly makes the appropriate adjustments to the movement of the stepper motor shaft to effect rotational movement of the air regulator shaft necessary to accomplish the oxygen valve openings, corresponding to STOP, AIR LOW, AIR MEDIUM and AIR HIGH vocal commands. The corresponding oxygen valve openings are depicted inarea76 ofFIG. 3 as78,80,82, and84 respectively.
The stepper motor converts the digital pulses from the stepper motor controller into mechanical shaft rotation. It is used in both industrial and commercial applications because of its low cost, high reliability and high torque at low speeds. The construction is simple but rugged and these devices operate in almost any environment. A stepper motor adaptable for the present invention is available from “Applied Motion Products”, of Watsonville, Calif.
Thevalve regulator72 together with a light-weight aluminum canister is available from “LIFE CORPORATION” of Milwaukee, Wis. These regulators maintain a precision flow rate from a full capacity cylinder to empty. Fixed flow rates at various liters per minute, such as 8, 16 and 24, corresponding to the AIR LOW, AIR MEDIUM and AIR HIGH positions, are available. The regulator affords a multi-position capability, if alternative, or more flow settings are desirable.
Referring toFIG. 6, a portion of the monitoring means20 is depicted. It includes a programmable gas mass flow meter andtotalizer86. Although not exactly portrayed, the flow meter is positioned in series in thetubing16 via input andoutput ports88 and90. Theflow meter86 is connected via acable92. When the second set of voice commands is initiated, the monitoring function is initiated. As noted above, these commands would include at least START, VOLUME, and STOP. As noted above the voice commands are received by thecontrol device22 via the headset and produce a corresponding second set of electrical signals. The use of the voice command VOLUME here represents the user's inquiry as to the status of the quantity of fluid remaining in thecanister12.
Thecontrol device22 produces a corresponding second set of electrical signals based on the voice commands for the monitoring mode. These signals assuming a wireless connection between a Smartphone andtransceiver56, are received atantenna55 and processed by thetransceiver signal circuit56. The signals are conveyed to the relay board viacircuit path61. They are directed by a relay on theboard58 to anoutput conductor96, and to theprogrammable flow meter86 throughcable92. Theprogrammable flow meter86 is adaptable to allow for the electrical interrogation of many characteristics including the volume remaining of the fluid or oxygen that it is monitoring.
While the programmable flow meter can provide highly accurate readings of the various parameters that it measures, for purposes of this application, theflow meter86 may be programmed to produce electrical signals corresponding to a coarse indication of the characteristic measured—in this case, the volume. So, for example, these relatively coarse indications could be “low”, “medium” and “high”. In the case of reporting on the volume of the canister, one of these coarse signals, for example, “medium”, is generated and supplied through therelay card board58. The relay that is activated for this monitoring mode receives the signal that is unique to the determination of the volume status of “medium” and routes it alongcircuit path98 to the input of the digital to analog converter portion of thetransceiver56 for subsequent processing and transmittal back to the voice controlleddevice22 viaantenna55.
As noted above, the voice controlled device contains a further software program or a modification of the first voice recognition software to generate a respective sensory signal corresponding to the received, respective third set of electrical signals. The voice controlleddevice22 transmits that signal to the sensory member (in the preferred embodiment, the ear) via the fourth interconnect means30. As noted above this would be in a standard Bluetooth® connection.
Theflow meter86 can be similarly programmed to produce a coarse response to a voice command directed to determining how much time remains for a particular canister at a given flow rate of oxygen. Following the format above, if instead of the use of the voice command VOLUME, for example, the command TIME were employed, this would be processed similar to the previous command. Here though, the command TIME could be introduced while the system is providing oxygen to the user. Theprogrammable flow meter86 would be adapted to provide a respective electrical signal coarsely indicating the time remaining which would be processed as above. The sensory signal could reply with the word “THIRTY”, for example. The user would know that this would indicate thirty minutes remaining for the particular flow rate then operating.
A flow meter that is programmable as suggested above is available from the “Omega Engineering Company”, in Stanford, Conn. A particular model number would be selected from their FMA-4100/4300 series. Technical information about the flow meter is available at Omega's web site.
Referring toFIG. 7, a different embodiment employing the principles of the invention is depicted in simplified form. Here thecanister12 containing the fluid, such as the gas oxygen, is connected to amodule100. This module in effect includes essentially all the elements ofFIG. 3 except for the voice controlled device or Smartphone,22. So, thecircuit board52 including atransceiver module56 are elements of themodule100. The electro-mechanical and mechanical elements of the system ofFIG. 3 are also represented by themodule100. The electronic circuit board would include thevoice recognition circuit53. Suitable programming such as identified by that available from “Nuance Communications Inc.” would be employed. Any speech to text requirement, particularly if the monitoring function is utilized, again can be found at the “Altera.com” web site at the address indicated above.
Shown in phantom inFIG. 7 is the means for monitoringfunction102. This includes theflow meter86 and a speech to text system again as outlined at the “Altera.com” web site at the specific address noted.
Referring toFIG. 8, the system incorporates atranslucent mask88 covering the nose and mouth region of the face, thereby providing protection from the elements and greater comfort. Such a mask incorporates a shutter type mechanism99 (seeFIGS. 9 and 10) that would be positioned in an orifice in front of the user's mouth. When oxygen is demanded, the user would vocalize the particular voice command required. An appropriate electrical signal would be generated by circuitry noted above, in response to the voice command START. The shutter99 would be activated to a closed position. This would close the orifice when the required oxygen is delivered to the mask, so as to optimize the oxygen delivery. After a set period of time, or upon a further voice command, the shutter99 would reopen. This would allow the user to breathe normally and converse when the oxygen delivery system is not being actively used.
Note that when the Smartphone's oxygen delivery VUI interface is not being actively used, the user would have full use of the Smartphone's other application (e.g., telephone, music system, etc.).
It is important to reiterate that the invention(s) described above does not in any way relate to the nature of the drug or chemical to be administered or the mechanism of such administration. This patent application only relates to the voice-activated control of the delivery, and the voice-activated monitoring of the status of any such device (whether on a wired basis or via a VUI and Bluetooth® enabled Smartphone). More importantly, the mechanisms described are intended to broadly apply to the hands-free and eyes-free voice activated control and monitoring of any device under any circumstances where such voice-activation would be beneficial, convenient and productive. Therefore, the particular discussion contained above relating to the voice activated delivery of oxygen is intended to be only illustrative of the general manner in which any device can be controlled and monitored via VUI voice activation using an appropriately equipped and programmed Smartphone.
When viewed from this perspective, the potential applications of this invention to increase the efficiency of almost any device or process by substituting voice-activated control and monitoring of such device or process without requiring the intervention of the user's hands and eyes, appears to be very broad indeed.
However, to the applicant's knowledge, certainly, no Smartphone or other VUI applications have yet been utilized for the actual control and monitoring of a device in the manner discussed herein.
While the disclosure above seems to imply that the user is one and the same as the person that benefits from the release of the fluid or oxygen, it is to be understood that the user can produce the results intended by the system for the benefit of another person, for example, a patient in a bed who is otherwise unable to speak or else provide for his or herself.
Also, although from the preferred embodiment it is apparent that a gas such as oxygen is provided to a person, other fluids, for example, those that might be carrying medicine, can be brought to a body part of the person receiving same such as through an intravenous needle disposed in a limb of the person benefited all as directed by another party, “the user”.
The reader recognizes that the description set forth above is directed to applicant's preferred embodiment. The language employed must be viewed, not in a limiting way, but in a more encompassing manner. The only limitation on the breadth of the invention must be as defined by the scope of the claims that follow.