Patent Publication Number: US-10785052-B2

Title: Remote control with muscle sensor and alerting sensor

Description:
CROSS-REFERENCE TO RELATED APPLICATIONS 
     This patent application is a divisional of U.S. patent application Ser. No. 15/286,528 filed Oct. 5, 2016, entitled “REMOTE CONTROL WITH MUSCLE SENSOR AND ALERTING SENSOR,” the complete disclosure of which is expressly incorporated herein by reference in its entirety for all purposes. 
    
    
     BACKGROUND 
     The present invention relates to the electrical, electronic and computer arts, and, more particularly, to remotely controlling home appliances and the like. 
     It has become commonplace to control home appliances remotely, i.e. without directly touching any controls provided on the appliances. Devices for doing this are known as remote controls. Remote controls can include handheld light transmitters (infrared or visible), which interact with photodiodes installed on home appliances. For example, a remote control can control multiple appliances, selecting which appliance to control by pointing the remote at the appliance. Remote controls also can include passive sensors such as motion trackers. Generally, the handheld transmitters are operated by small finger motions (fine motor operations) whereas the motion trackers interact with large limb motions (gross motor operations). One exemplary optical motion tracker recognizes large hand motions. Another exemplary remote control technology adapts a mobile device with inbuilt inertial sensors to permit gestural remote control of an appliance. Voice recognition controllers also are known. Facial recognition also has been proposed for remote control of appliances; for example, image recognition on a face or any part of the face (e.g., eye tracking) can be associated with remote control operations of a powered wheelchair, computer mouse, or multimedia system. 
     SUMMARY 
     Principles of the invention provide techniques for remote control with muscle sensors and an alerting sensor, which activates an appliance to be remotely controlled. In this context, “appliance” may include well-known home appliances such as a refrigerator, a stove, a microwave oven, a faucet, a television, a personal computer, and the like. “Appliance” also may include mobile appliances such as an automobile or a powered wheelchair. 
     In one aspect, an exemplary method includes detecting a directional signal at an alerting sensor package; activating an appliance to accept a control signal in response to the directional signal; accepting the control signal at the appliance from a muscle sensor package; and adjusting operation of the appliance in response to the control signal. 
     In another aspect, an exemplary system includes an alerting sensor package that is connected in communication with an appliance for detecting a directional signal and for activating the appliance in response to the directional signal to accept a control signal. The exemplary system further includes the appliance, which is operative when activated to accept the control signal from a muscle sensor package and to adjust its operation in response to the control signal. 
     According to another aspect, a computer program product includes a computer readable storage medium that embodies computer executable instructions, which when executed by a computer cause the computer to facilitate the method of detecting a directional signal; activating an appliance to accept a control signal in response to the directional signal; and adjusting operation of the appliance in response to the control signal. 
     As used herein, “facilitating” an action includes performing the action, making the action easier, helping to carry the action out, or causing the action to be performed. Thus, by way of example and not limitation, instructions executing on one processor might facilitate an action carried out by instructions executing on a remote processor, by sending appropriate data or commands to cause or aid the action to be performed. For the avoidance of doubt, where an actor facilitates an action by other than performing the action, the action is nevertheless performed by some entity or combination of entities. 
     One or more embodiments of the invention or elements thereof can be implemented in the form of a computer program product including a computer readable storage medium with computer usable program code for performing the method steps indicated. Furthermore, one or more embodiments of the invention or elements thereof can be implemented in the form of a system (or apparatus) including a memory, and at least one processor that is coupled to the memory and operative to perform exemplary method steps. Yet further, in another aspect, one or more embodiments of the invention or elements thereof can be implemented in the form of means for carrying out one or more of the method steps described herein; the means can include (i) hardware module(s), (ii) software module(s) stored in a computer readable storage medium (or multiple such media) and implemented on a hardware processor, or (iii) a combination of (i) and (ii); any of (i)-(iii) implement the specific techniques set forth herein. 
     Techniques of the present invention can provide substantial beneficial technical effects. For example, one or more embodiments may provide one or more of the following advantages: 
     Remote control of home appliances using minimal physical movement (small gesture language). 
     Intuitive selection of a device to be remotely controlled. 
     Remote control of devices other than home appliances (e.g., self-driving automobiles) using small gesture language. 
     These and other features and advantages of the present invention will become apparent from the following detailed description of illustrative embodiments thereof, which is to be read in connection with the accompanying drawings. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         FIG. 1  depicts a cloud computing node according to an embodiment of the present invention; 
         FIG. 2  depicts a cloud computing environment according to an embodiment of the present invention; 
         FIG. 3  depicts abstraction model layers according to an embodiment of the present invention; 
         FIG. 4  shows a remote control system according to an embodiment of the invention; 
         FIG. 5  depicts one embodiment of an alerting sensor package useful in implementing the invention; 
         FIG. 6  shows another embodiment of an alerting sensor package of the invention; 
         FIG. 7  shows one embodiment of a muscle sensor package useful in implementing the invention; 
         FIG. 8  shows a flowchart of a method of operation of the remote control system according to  FIG. 4 ; and 
         FIG. 9  depicts a flowchart of another method of operation of the remote control system according to  FIG. 4 . 
     
    
    
     DETAILED DESCRIPTION 
     The subject matter of the instant application will be described with reference to illustrative embodiments. Numerous modifications can be made to these embodiments and the results will still come within the scope of the invention. No limitations with respect to the specific embodiments described herein are intended or should be inferred. 
     Although a particular embodiment of the invention is described in detail herein with reference to kitchen appliances, it is to be understood that the invention is equally applicable to other devices capable of electronic user control, e.g., automobiles, home entertainment systems, power wheelchairs, and the like. 
     It is understood in advance that although this disclosure includes a detailed description on cloud computing, implementation of the teachings recited herein are not limited to a cloud computing environment. Rather, embodiments of the present invention are capable of being implemented in conjunction with any other type of computing environment now known or later developed. 
     Cloud computing is a model of service delivery for enabling convenient, on-demand network access to a shared pool of configurable computing resources (e.g. networks, network bandwidth, servers, processing, memory, storage, applications, virtual machines, and services) that can be rapidly provisioned and released with minimal management effort or interaction with a provider of the service. This cloud model may include at least five characteristics, at least three service models, and at least four deployment models. 
     Characteristics are as follows: 
     On-demand self-service: a cloud consumer can unilaterally provision computing capabilities, such as server time and network storage, as needed automatically without requiring human interaction with the service&#39;s provider. 
     Broad network access: capabilities are available over a network and accessed through standard mechanisms that promote use by heterogeneous thin or thick client platforms (e.g., mobile phones, laptops, and PDAs). 
     Resource pooling: the provider&#39;s computing resources are pooled to serve multiple consumers using a multi-tenant model, with different physical and virtual resources dynamically assigned and reassigned according to demand. There is a sense of location independence in that the consumer generally has no control or knowledge over the exact location of the provided resources but may be able to specify location at a higher level of abstraction (e.g., country, state, or datacenter). 
     Rapid elasticity: capabilities can be rapidly and elastically provisioned, in some cases automatically, to quickly scale out and rapidly released to quickly scale in. To the consumer, the capabilities available for provisioning often appear to be unlimited and can be purchased in any quantity at any time. 
     Measured service: cloud systems automatically control and optimize resource use by leveraging a metering capability at some level of abstraction appropriate to the type of service (e.g., storage, processing, bandwidth, and active user accounts). Resource usage can be monitored, controlled, and reported providing transparency for both the provider and consumer of the utilized service. 
     Service Models are as follows: 
     Software as a Service (SaaS): the capability provided to the consumer is to use the provider&#39;s applications running on a cloud infrastructure. The applications are accessible from various client devices through a thin client interface such as a web browser (e.g., web-based email). The consumer does not manage or control the underlying cloud infrastructure including network, servers, operating systems, storage, or even individual application capabilities, with the possible exception of limited user-specific application configuration settings. 
     Platform as a Service (PaaS): the capability provided to the consumer is to deploy onto the cloud infrastructure consumer-created or acquired applications created using programming languages and tools supported by the provider. The consumer does not manage or control the underlying cloud infrastructure including networks, servers, operating systems, or storage, but has control over the deployed applications and possibly application hosting environment configurations. 
     Infrastructure as a Service (IaaS): the capability provided to the consumer is to provision processing, storage, networks, and other fundamental computing resources where the consumer is able to deploy and run arbitrary software, which can include operating systems and applications. The consumer does not manage or control the underlying cloud infrastructure but has control over operating systems, storage, deployed applications, and possibly limited control of select networking components (e.g., host firewalls). 
     Deployment Models are as follows: 
     Private cloud: the cloud infrastructure is operated solely for an organization. It may be managed by the organization or a third party and may exist on-premises or off-premises. 
     Community cloud: the cloud infrastructure is shared by several organizations and supports a specific community that has shared concerns (e.g., mission, security requirements, policy, and compliance considerations). It may be managed by the organizations or a third party and may exist on-premises or off-premises. 
     Public cloud: the cloud infrastructure is made available to the general public or a large industry group and is owned by an organization selling cloud services. 
     Hybrid cloud: the cloud infrastructure is a composition of two or more clouds (private, community, or public) that remain unique entities but are bound together by standardized or proprietary technology that enables data and application portability (e.g., cloud bursting for load balancing between clouds). 
     A cloud computing environment is service oriented with a focus on statelessness, low coupling, modularity, and semantic interoperability. At the heart of cloud computing is an infrastructure comprising a network of interconnected nodes. 
     Referring now to  FIG. 1 , a schematic of an example of a cloud computing node is shown. Cloud computing node  10  is only one example of a suitable cloud computing node and is not intended to suggest any limitation as to the scope of use or functionality of embodiments of the invention described herein. Regardless, cloud computing node  10  is capable of being implemented and/or performing any of the functionality set forth hereinabove. 
     In cloud computing node  10  there is a computer system/server  12 , which is operational with numerous other general purpose or special purpose computing system environments or configurations. Examples of well-known computing systems, environments, and/or configurations that may be suitable for use with computer system/server  12  include, but are not limited to, personal computer systems, server computer systems, thin clients, thick clients, handheld or laptop devices, multiprocessor systems, microprocessor-based systems, set top boxes, programmable consumer electronics, network PCs, minicomputer systems, mainframe computer systems, and distributed cloud computing environments that include any of the above systems or devices, and the like. 
     Computer system/server  12  may be described in the general context of computer system executable instructions, such as program modules, being executed by a computer system. Generally, program modules may include routines, programs, objects, components, logic, data structures, and so on that perform particular tasks or implement particular abstract data types. Computer system/server  12  may be practiced in distributed cloud computing environments where tasks are performed by remote processing devices that are linked through a communications network. In a distributed cloud computing environment, program modules may be located in both local and remote computer system storage media including memory storage devices. 
     As shown in  FIG. 1 , computer system/server  12  in cloud computing node  10  is shown in the form of a general-purpose computing device. The components of computer system/server  12  may include, but are not limited to, one or more processors or processing units  16 , a system memory  28 , and a bus  18  that couples various system components including system memory  28  to processor  16 . 
     Bus  18  represents one or more of any of several types of bus structures, including a memory bus or memory controller, a peripheral bus, an accelerated graphics port, and a processor or local bus using any of a variety of bus architectures. By way of example, and not limitation, such architectures include Industry Standard Architecture (ISA) bus, Micro Channel Architecture (MCA) bus, Enhanced ISA (EISA) bus, Video Electronics Standards Association (VESA) local bus, and Peripheral Component Interconnect (PCI) bus. 
     Computer system/server  12  typically includes a variety of computer system readable media. Such media may be any available media that is accessible by computer system/server  12 , and it includes both volatile and non-volatile media, removable and non-removable media. 
     System memory  28  can include computer system readable media in the form of volatile memory, such as random access memory (RAM)  30  and/or cache memory  32 . Computer system/server  12  may further include other removable/non-removable, volatile/non-volatile computer system storage media. By way of example only, storage system  34  can be provided for reading from and writing to a non-removable, non-volatile magnetic media (not shown and typically called a “hard drive”). Although not shown, a magnetic disk drive for reading from and writing to a removable, non-volatile magnetic disk (e.g., a “floppy disk”), and an optical disk drive for reading from or writing to a removable, non-volatile optical disk such as a CD-ROM, DVD-ROM or other optical media can be provided. In such instances, each can be connected to bus  18  by one or more data media interfaces. As will be further depicted and described below, memory  28  may include at least one program product having a set (e.g., at least one) of program modules that are configured to carry out the functions of embodiments of the invention. 
     Program/utility  40 , having a set (at least one) of program modules  42 , may be stored in memory  28  by way of example, and not limitation, as well as an operating system, one or more application programs, other program modules, and program data. Each of the operating system, one or more application programs, other program modules, and program data or some combination thereof, may include an implementation of a networking environment. Program modules  42  generally carry out the functions and/or methodologies of embodiments of the invention as described herein. 
     Computer system/server  12  may also communicate with one or more external devices  14  such as a keyboard, a pointing device, a display  24 , etc.; one or more devices that enable a user to interact with computer system/server  12 ; and/or any devices (e.g., network card, modem, etc.) that enable computer system/server  12  to communicate with one or more other computing devices. Such communication can occur via Input/Output (I/O) interfaces  22 . Still yet, computer system/server  12  can communicate with one or more networks such as a local area network (LAN), a general wide area network (WAN), and/or a public network (e.g., the Internet) via network adapter  20 . As depicted, network adapter  20  communicates with the other components of computer system/server  12  via bus  18 . It should be understood that although not shown, other hardware and/or software components could be used in conjunction with computer system/server  12 . Examples, include, but are not limited to: microcode, device drivers, redundant processing units, and external disk drive arrays, RAID systems, tape drives, and data archival storage systems, etc. 
     Referring now to  FIG. 2 , illustrative cloud computing environment  50  is depicted. As shown, cloud computing environment  50  comprises one or more cloud computing nodes  10  with which local computing devices used by cloud consumers, such as, for example, personal digital assistant (PDA) or cellular telephone  54 A, desktop computer  54 B, laptop computer  54 C, and/or automobile computer system  54 N may communicate. Nodes  10  may communicate with one another. They may be grouped (not shown) physically or virtually, in one or more networks, such as Private, Community, Public, or Hybrid clouds as described hereinabove, or a combination thereof. This allows cloud computing environment  50  to offer infrastructure, platforms and/or software as services for which a cloud consumer does not need to maintain resources on a local computing device. It is understood that the types of computing devices  54 A-N shown in  FIG. 2  are intended to be illustrative only and that computing nodes  10  and cloud computing environment  50  can communicate with any type of computerized device over any type of network and/or network addressable connection (e.g., using a web browser). 
     Referring now to  FIG. 3 , a set of functional abstraction layers provided by cloud computing environment  50  ( FIG. 2 ) is shown. It should be understood in advance that the components, layers, and functions shown in  FIG. 3  are intended to be illustrative only and embodiments of the invention are not limited thereto. As depicted, the following layers and corresponding functions are provided: 
     Hardware and software layer  60  includes hardware and software components. Examples of hardware components include mainframes, in one example IBM® zSeries® systems; RISC (Reduced Instruction Set Computer) architecture based servers, in one example IBM pSeries® systems; IBM xSeries® systems; IBM BladeCenter® systems; storage devices; networks and networking components. Examples of software components include network application server software, in one example IBM WebSphere® application server software; and database software, in one example IBM DB2® database software. (IBM, zSeries, pSeries, xSeries, BladeCenter, WebSphere, and DB2 are trademarks of International Business Machines Corporation registered in many jurisdictions worldwide). 
     Virtualization layer  62  provides an abstraction layer from which the following examples of virtual entities may be provided: virtual servers; virtual storage; virtual networks, including virtual private networks; virtual applications and operating systems; and virtual clients. 
     In one example, management layer  64  may provide the functions described below. Resource provisioning provides dynamic procurement of computing resources and other resources that are utilized to perform tasks within the cloud computing environment. Metering and Pricing provide cost tracking as resources are utilized within the cloud computing environment, and billing or invoicing for consumption of these resources. In one example, these resources may comprise application software licenses. Security provides identity verification for cloud consumers and tasks, as well as protection for data and other resources. User portal provides access to the cloud computing environment for consumers and system administrators. Service level management provides cloud computing resource allocation and management such that required service levels are met. Service Level Agreement (SLA) planning and fulfillment provides pre-arrangement for, and procurement of, cloud computing resources for which a future requirement is anticipated in accordance with an SLA. 
     Workloads layer  66  provides examples of functionality for which the cloud computing environment may be utilized. Examples of workloads and functions which may be provided from this layer include: mapping and navigation; software development and lifecycle management; virtual classroom education delivery; data analytics processing; transaction processing; and mobile desktop. 
     Referring now to  FIG. 4 , a remote control system  400  according to embodiments of the invention includes at least one alerting sensor package  401 , as well as a muscle sensor package  402  that is worn by a user of the system. According to some embodiments of the invention, each of the at least one alerting sensor packages  401   a  is assembled into, or connected in communication with, a corresponding appliance  403 . According to other embodiments, a central networked alerting sensor package  401   b  is provided and is connected in communication with all of the appliances  403  within a room or space. In this context, connection “in communication with” a device may include wired, wireless RF, wireless infrared, wireless visible light, sonic, or ultrasonic connectivity. The alerting sensor package  401   a  or  401   b  includes a processor configured with appropriate software modules to render the package responsive to a directional signal in order to activate the appliance  403  to accept remote control by a signal broadcast from the muscle sensor package  402 . 
     Referring to  FIG. 5 , an embodiment of an alerting sensor package  500  may incorporate a camera  501  and face image recognition software module  502  such that the appliance  403  will be activated by the user facing the appliance (e.g., approaching and looking at an oven; facing toward the windshield of an automobile) to provide a frontal face image to the camera  501 . Thus, the directional signal for this embodiment would be the user facing toward the appliance. Such an embodiment further includes a communication module  503  for outputting an alert signal to the appliance faced by the user. It will be understood that the modules of the alerting sensor package  500  may be implemented locally (i.e. within a processor embedded in the appliance  403 ) or remotely (i.e. within a cloud computing system similar to that shown in  FIGS. 1-3 ). Alternatively, as shown in  FIG. 6 , another embodiment of an alerting sensor package  600  may incorporate a microphone  601 , such that the appliance  403  will be activated by the user speaking within a certain distance in front of the appliance. Thus, the directional signal for this embodiment would be the user speaking in front of the appliance. In some embodiments the microphone  601  is a cardioid microphone, which localizes sound along an axis and (for a given sound intensity, such as normal speech) produces an alert signal above a threshold value only when the sound comes from along the axis of the microphone. Such an embodiment further includes a communication module  603  for outputting an alert signal to the appliance the user is speaking to. 
       FIG. 7  depicts the muscle sensor package  402 , which incorporates a plurality of muscle sensors  701 , an associated muscle signal analysis software (muscle sensor module)  702 , and a communications module  703 . The muscle sensors  701  may include electromyography sensors, such as the dEMG sensor and corresponding signal analysis module  702  produced by Delsys® (see, e.g., De Luca, et al., “Decomposition of surface EMG signals from cyclic dynamic contractions,” J Neurophysiol (2015) 113:1941, hereby incorporated by reference in its entirety for all purposes). The muscle sensors  701  also may include electrooptical sensors and corresponding software  702  (see, e.g., Chianura et al. “An electrooptical muscle contraction sensor,” Med Biol Eng Comput (2010) 48:731, hereby incorporated by reference in its entirety for all purposes). The muscle sensors  701  may be positioned and configured to sense “small muscle” contractions, i.e. contractions of the hand, forearm, face, or neck muscles. The muscle sensors  701  also may be configured to sense isometric muscle contractions. The muscle signal analysis module  702 , for interpreting signals produced by the muscle sensors  701 , may incorporate appropriate algorithms (e.g., hidden Markov models or other learning algorithms) as well as one or more databases of gesture control signals as further discussed below, and may be implemented using techniques such as time-domain supporting vector machines. It will be understood that the muscle signal analysis module  702  that is associated with the muscle sensor package  402  may be implemented locally (i.e. by a processor onboard the muscle sensor package) or remotely (i.e. in the cloud computing environment  50 ). 
     Operation of the remote control system  400  will be further discussed with reference to  FIG. 8 , which depicts a flowchart of a method of operation  800  according to embodiments of the present invention. In  FIG. 8 , method steps, data, and/or signals are superimposed upon schematic representations of components or modules that perform or interact with the corresponding steps, data, or signals. 
     According to the method of operation  800 , an alerting sensor package  401   b  receives  801  a directional signal  802 . In response to the directional signal  802 , the alerting sensor package  401   b  activates  803  an appliance  403 , which includes an antenna or photodiode or equivalent “receiver”  404 . Along with the alerting sensor package  401  receiving  801  the directional signal  802 , a muscle sensor package  402  senses a muscle contraction  804  (via a muscle sensor  701 ) to produce  805  a raw muscular signal  806 . For example, sensing the muscle contraction  804  may include filtering noise and extracting the raw muscular signal  806  from an electrical waveform produced by the muscle sensor  701 . 
     The muscle sensor package  402  analyzes  807  the raw muscular signal  806 , and selects  808  a remote control signal  809  from among a plurality of potential remote control signals, based on the analysis of the muscular signal. Although for simplicity we will discuss the muscle sensor module performing certain steps, in fact it is equally possible for these steps to be facilitated by the muscle sensor module for actual performance in the cloud computing environment  50 . For example, the muscle sensor package  402  may analyze  807  the raw muscular signal  806  by implementing the muscle signal analysis  702  to estimate a mathematical distance from the muscular signal  806  to any of a plurality of template signals that are recorded in a signal database  810  (which may be stored onboard the muscle sensor module  402 , or in a cloud computing system). The signal database  810 , generated for example by machine learning algorithms, correlates various potential muscular signals to corresponding desired remote control signals. 
     The muscle sensor module  402  then broadcasts  811  the selected remote control signal  809 . The muscle sensor module  402  may broadcast the remote control signal  809  directionally or non-directionally to one or many appliances by a variety of modalities, including without limitation infrared, visible light, ultrasound, RF emissions, or the like. 
     In case an appliance  403  has been activated by the alerting sensor module  401 , then the appliance  403  accepts and processes  812  the remote control signal  809  and adjusts  814  its operation accordingly. For example, a refrigerator appliance may adjust its internal temperature setting or may open its door. As another example, an automobile appliance may steer to the left or right, may apply brakes, or may select a new destination for travel. On the other hand, in case the appliance  403  has not been activated by the associated alerting package  401 , then it ignores the remote control signal  809 . 
     According to other embodiments, as shown in  FIG. 9 , the invention may also be implemented in a method  900  that has slightly different steps that are facilitated by different components. With reference to  FIG. 9 , like steps and components are numbered alike to those of  FIG. 8  and are only briefly discussed. According to the method  900 , the alerting sensor package  401  receives  801  the directional signal  802  and activates  803  the appliance  403 . The muscle sensor package  402  produces  805  the raw muscular signal  806  from the muscle contraction  804 , and analyzes the raw muscular signal with reference to the gesture signal database  810 , producing a gesture control signal  909 . The muscle sensor package  402  then broadcasts  912  that gesture control signal  909  to all of the appliances within range of the muscle sensor module communications module  703 . The activated appliance  403  (if any) receives and processes  913  the gesture control signal, selects  808  the remote control signal  809  that corresponds to the gesture control signal  909 , and adjusts  814  its operation accordingly. Again, the step of selecting  808  the remote control signal  809  may be accomplished by the appliance  403  or in the cloud computing environment  50 . 
     A method such as method  900  provides for allocation of tasks according to user-focused tasks (correlating a muscle sensor waveform to a muscle movement) or according to appliance-focused tasks (correlating a muscle movement to a control signal). Thus, for a given user, a particular waveform will reliably correlate to a particular muscle movement, presuming the muscle sensor module is properly fitted. For a given appliance, a particular muscle movement may be programmed to correlate to a particular control signal. According to method  900 , the muscle sensor package  402  facilitates the user-focused tasks while the appliance  403  facilitates the appliance-focused tasks. 
     Advantageously, embodiments of the invention provide for remote control of multiple appliances using a single (universal) remote control, with facile selection of a single appliance to be remotely controlled. Embodiments of the invention also provide for remote control of a selected appliance by fine motor motions, i.e. using a small gesture language that can be implemented even by users with limited range of motion (e.g., elderly, muscular dystrophy). Moreover, embodiments of the invention may incorporate signal analysis and filtering of noise in muscle contraction measurements, so as to provide for small gesture language control of an appliance even by a user with disordered muscle control (e.g., Parkinsonian disease, cerebral palsy). 
     Given the discussion thus far, and with reference to the preceding description of the drawing Figures, it will be appreciated that, in general terms, an exemplary computer-implemented method, according to an aspect of the invention, includes detecting  801  a directional signal  802  at an alerting sensor package  401 ; activating  803  an appliance  403  to accept a control signal ( 809  or  909 ) in response to the directional signal; accepting the control signal at the appliance from a muscle sensor package  402 ; and adjusting  814  operation of the appliance in response to the control signal. In certain embodiments, the control signal may be a gesture control signal  909  that is selected by the muscle sensor package from a gesture signal database  810  based on sensing small muscle contractions. For example, the small muscle contractions may correspond to one of the following actions: forming a fist, twisting a hand, lifting or extending a finger; swallowing, coughing, or turning one&#39;s head; blinking, smiling, or opening one&#39;s mouth. The small muscle contractions may be isometric muscle contractions. Sensing the small muscle contractions may comprise filtering noise and extracting a signal from an electrical waveform produced by a muscle sensor. After receiving the gesture control signal at the appliance, the appliance may facilitate selection  808  of a remote control signal  809  based on the gesture control signal. In other embodiments, the control signal accepted by the appliance is a remote control signal that is selected from a control signal database  811  (for example, by the muscle sensor package  402 ) based on sensing small muscle contractions. In certain embodiments, the alerting sensor package  401  detects the directional signal as a frontal face image. In other embodiments, the alerting sensor package detects the directional signal as a voice along a predetermined axis. 
     Certain embodiments of the inventive method include providing a system of distinct software modules, each of the distinct software modules being embodied on a computer-readable storage medium. The distinct software modules include an alerting sensor module and a control module, which each execute on at least one hardware processor. The alerting sensor module facilitates detecting the directional signal and activating the appliance. The control module facilitates activating the appliance, accepting the control signal, and adjusting operation in response to the control signal. 
     An exemplary system  400 , according to embodiments of the invention, includes an alerting sensor package  401  that is connected in communication with an appliance  403  for detecting  801  a directional signal  802  and for activating  803  the appliance in response to the directional signal to accept a control signal  809  or  909 . The exemplary system further includes the appliance  403 , which is operative when activated to accept the control signal from a muscle sensor package  402  and to adjust its operation in response to the control signal. Certain embodiments of the exemplary system also include the muscle sensor package  402 . The muscle sensor package may include an electromyography sensor or an electrooptical muscle contraction sensor. The alerting sensor package may include a camera and may facilitate facial image recognition software, and may activate the appliance in response to detecting a user facing the appliance. On the other hand, the alerting sensor package may comprise a cardioid microphone, and may activate the appliance in response to detecting a user speaking in front of the appliance. 
     According to another aspect of the invention, a computer program product includes a computer readable storage medium that embodies computer executable instructions, which when executed by a computer cause the computer to facilitate the method of detecting  801  a directional signal  802 ; activating  803  an appliance to accept a control signal  809  or  909  in response to the directional signal; and adjusting operation  814  of the appliance in response to the control signal. The method may further include accepting a gesture control signal  909  at the appliance; selecting a remote control signal  809  based on the control signal; and adjusting operation of the appliance according to the remote control signal. 
     As will be appreciated by one skilled in the art, aspects of the present invention may be embodied as a system, method or computer program product. Accordingly, aspects of the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment (including firmware, resident software, micro-code, etc.) or an embodiment combining software and hardware aspects that may all generally be referred to herein as a “circuit,” “module” or “system.” Furthermore, aspects of the present invention may take the form of a computer program product embodied in one or more computer readable medium(s) having computer readable program code embodied thereon. 
     One or more embodiments of the invention, or elements thereof, can be implemented in the form of an apparatus including a memory and at least one processor that is coupled to the memory and operative to perform exemplary method steps. 
     One or more embodiments can make use of software running on a general purpose computer or workstation. With reference to  FIG. 1 , such an implementation might employ, for example, a processor  16 , a memory  28 , and an input/output interface  22  to a display  24  and external device(s)  14  such as a keyboard, a pointing device, or the like. The term “processor” as used herein is intended to include any processing device, such as, for example, one that includes a CPU (central processing unit) and/or other forms of processing circuitry. Further, the term “processor” may refer to more than one individual processor. The term “memory” is intended to include memory associated with a processor or CPU, such as, for example, RAM (random access memory)  30 , ROM (read only memory), a fixed memory device (for example, hard drive  34 ), a removable memory device (for example, diskette), a flash memory and the like. In addition, the phrase “input/output interface” as used herein, is intended to contemplate an interface to, for example, one or more mechanisms for inputting data to the processing unit (for example, mouse), and one or more mechanisms for providing results associated with the processing unit (for example, printer). The processor  16 , memory  28 , and input/output interface  22  can be interconnected, for example, via bus  18  as part of a data processing unit  12 . Suitable interconnections, for example via bus  18 , can also be provided to a network interface  20 , such as a network card, which can be provided to interface with a computer network, and to a media interface, such as a diskette or CD-ROM drive, which can be provided to interface with suitable media. 
     Accordingly, computer software including instructions or code for performing the methodologies of the invention, as described herein, may be stored in one or more of the associated memory devices (for example, ROM, fixed or removable memory) and, when ready to be utilized, loaded in part or in whole (for example, into RAM) and implemented by a CPU. Such software could include, but is not limited to, firmware, resident software, microcode, and the like. 
     A data processing system suitable for storing and/or executing program code will include at least one processor  16  coupled directly or indirectly to memory elements  28  through a system bus  18 . The memory elements can include local memory employed during actual implementation of the program code, bulk storage, and cache memories  32  which provide temporary storage of at least some program code in order to reduce the number of times code must be retrieved from bulk storage during implementation. 
     Input/output or I/O devices (including but not limited to keyboards, displays, pointing devices, and the like) can be coupled to the system either directly or through intervening I/O controllers. 
     Network adapters  20  may also be coupled to the system to enable the data processing system to become coupled to other data processing systems or remote printers or storage devices through intervening private or public networks. Modems, cable modem and Ethernet cards are just a few of the currently available types of network adapters. 
     As used herein, including the claims, a “server” includes a physical data processing system (for example, system  12  as shown in  FIG. 1 ) running a server program. It will be understood that such a physical server may or may not include a display and keyboard. 
     One or more embodiments can be at least partially implemented in the context of a cloud or virtual machine environment, although this is exemplary and non-limiting. Reference is made back to  FIGS. 1-3  and accompanying text. Consider, e.g., a database app in layer  66 . 
     It should be noted that any of the methods described herein can include an additional step of providing a system comprising distinct software modules embodied on a computer readable storage medium; the modules can include, for example, any or all of the appropriate elements depicted in the block diagrams and/or described herein; by way of example and not limitation, any one, some or all of the modules/blocks and or sub-modules/sub-blocks described. 
     One example of user interface that could be employed in some cases is hypertext markup language (HTML) code served out by a server or the like, to a browser of a computing device of a user. The HTML is parsed by the browser on the user&#39;s computing device to create a graphical user interface (GUI). 
     It should be noted that any of the methods described herein can include an additional step of providing a system comprising distinct software modules embodied on a computer readable storage medium; the modules can include, for example, any or all of the elements depicted in the block diagrams and/or described herein; by way of example and not limitation, an alerting sensor module and a muscle sensor module. 
     For example, the alerting sensor module may facilitate a step of activating an appliance to accept remote control, in response to a signal produced by an alerting sensor; the muscle sensor module may facilitate a step of remotely controlling an appliance, in response to a signal produced by a muscle sensor. The method steps can then be carried out using distinct software modules and/or sub-modules of the system, executing on one or more hardware processors such as 16. Further, a computer program product can include a computer-readable storage medium with code adapted to be implemented to carry out one or more method steps described herein, including the provision of the system with the distinct software modules. In any case, it should be understood that the components illustrated herein may be implemented in various forms of hardware, software, or combinations thereof; for example, application specific integrated circuit(s) (ASICS), functional circuitry, one or more appropriately programmed general purpose digital computers with associated memory, and the like. Given the teachings of the invention provided herein, one of ordinary skill in the related art will be able to contemplate other implementations of the components of the invention. 
     Exemplary System and Article of Manufacture Details 
     The present invention may be a system, a method, and/or a computer program product. The computer program product may include a computer readable storage medium (or media) having computer readable program instructions thereon for causing a processor to carry out aspects of the present invention. 
     The computer readable storage medium can be a tangible device that can retain and store instructions for use by an instruction execution device. The computer readable storage medium may be, for example, but is not limited to, an electronic storage device, a magnetic storage device, an optical storage device, an electromagnetic storage device, a semiconductor storage device, or any suitable combination of the foregoing. A non-exhaustive list of more specific examples of the computer readable storage medium includes the following: a portable computer diskette, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or Flash memory), a static random access memory (SRAM), a portable compact disc read-only memory (CD-ROM), a digital versatile disk (DVD), a memory stick, a floppy disk, a mechanically encoded device such as punch-cards or raised structures in a groove having instructions recorded thereon, and any suitable combination of the foregoing. A computer readable storage medium, as used herein, is not to be construed as being transitory signals per se, such as radio waves or other freely propagating electromagnetic waves, electromagnetic waves propagating through a waveguide or other transmission media (e.g., light pulses passing through a fiber-optic cable), or electrical signals transmitted through a wire. 
     Computer readable program instructions described herein can be downloaded to respective computing/processing devices from a computer readable storage medium or to an external computer or external storage device via a network, for example, the Internet, a local area network, a wide area network and/or a wireless network. The network may comprise copper transmission cables, optical transmission fibers, wireless transmission, routers, firewalls, switches, gateway computers and/or edge servers. A network adapter card or network interface in each computing/processing device receives computer readable program instructions from the network and forwards the computer readable program instructions for storage in a computer readable storage medium within the respective computing/processing device. 
     Computer readable program instructions for carrying out operations of the present invention may be assembler instructions, instruction-set-architecture (ISA) instructions, machine instructions, machine dependent instructions, microcode, firmware instructions, state-setting data, or either source code or object code written in any combination of one or more programming languages, including an object oriented programming language such as Smalltalk, C++ or the like, and conventional procedural programming languages, such as the “C” programming language or similar programming languages. The computer readable program instructions may execute entirely on the user&#39;s computer, partly on the user&#39;s computer, as a stand-alone software package, partly on the user&#39;s computer and partly on a remote computer or entirely on the remote computer or server. In the latter scenario, the remote computer may be connected to the user&#39;s computer through any type of network, including a local area network (LAN) or a wide area network (WAN), or the connection may be made to an external computer (for example, through the Internet using an Internet Service Provider). In some embodiments, electronic circuitry including, for example, programmable logic circuitry, field-programmable gate arrays (FPGA), or programmable logic arrays (PLA) may execute the computer readable program instructions by utilizing state information of the computer readable program instructions to personalize the electronic circuitry, in order to perform aspects of the present invention. 
     Aspects of the present invention are described herein with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. It will be understood that each block of the flowchart illustrations and/or block diagrams, and combinations of blocks in the flowchart illustrations and/or block diagrams, can be implemented by computer readable program instructions. 
     These computer readable program instructions may be provided to a processor of a general purpose computer, special purpose computer, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions/acts specified in the flowchart and/or block diagram block or blocks. These computer readable program instructions may also be stored in a computer readable storage medium that can direct a computer, a programmable data processing apparatus, and/or other devices to function in a particular manner, such that the computer readable storage medium having instructions stored therein comprises an article of manufacture including instructions which implement aspects of the function/act specified in the flowchart and/or block diagram block or blocks. 
     The computer readable program instructions may also be loaded onto a computer, other programmable data processing apparatus, or other device to cause a series of operational steps to be performed on the computer, other programmable apparatus or other device to produce a computer implemented process, such that the instructions which execute on the computer, other programmable apparatus, or other device implement the functions/acts specified in the flowchart and/or block diagram block or blocks. 
     The flowchart and block diagrams in the Figures illustrate the architecture, functionality, and operation of possible implementations of systems, methods, and computer program products according to various embodiments of the present invention. In this regard, each block in the flowchart or block diagrams may represent a module, segment, or portion of instructions, which comprises one or more executable instructions for implementing the specified logical function(s). In some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. It will also be noted that each block of the block diagrams and/or flowchart illustration, and combinations of blocks in the block diagrams and/or flowchart illustration, can be implemented by special purpose hardware-based systems that perform the specified functions or acts or carry out combinations of special purpose hardware and computer instructions. 
     The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the singular forms “a”, “an” and “the” are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms “comprises” and/or “comprising,” when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. 
     The corresponding structures, materials, acts, and equivalents of all means or step plus function elements in the claims below are intended to include any structure, material, or act for performing the function in combination with other claimed elements as specifically claimed. The description of the present invention has been presented for purposes of illustration and description, but is not intended to be exhaustive or limited to the invention in the form disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the invention. The embodiment was chosen and described in order to best explain the principles of the invention and the practical application, and to enable others of ordinary skill in the art to understand the invention for various embodiments with various modifications as are suited to the particular use contemplated.