Claims:CLAIMS
I/We Claim:
1. A system (100) for management of hotel operations, wherein the system (100) comprising:
a motion sensor (102) to sense an amount of infrared light radiating from users while entering a hotel;
a gas sensor (104) to measure a concentration of gas in a surrounding atmosphere; and
a control unit (120) connected to the motion sensor (102) and the gas sensor (104), wherein the control unit (120) is configured to:
receive the sensed amount of infrared light and measured concentration of gas from the motion sensor (102) and the gas sensor (104) respectively;
compare the sensed amount of infrared light and the measured concentration of gas with a pre-defined amount of infrared light and a pre-defined concentration of gas respectively;
actuate a Negative-Positive-Negative (n-p-n) transistor (112) to energize a relay (108) to turn on in-built lights (126a-126n), when the sensed amount of infrared light is not equal to the pre-defined amount of infrared light; and
enable a sound unit (114) to generate an alert of a pre-set sound to indicate about a gas leakage, when the measured concentration of gas exceeds the pre-defined concentration of gas.
2. The system (100) as claimed in claim 1, wherein the users are selected from customers, hotel managers, kitchen staff, waiters, or a combination thereof.
3. The system (100) as claimed in claim 1, wherein the motion sensor (102) is a Passive Infrared (PIR) sensor.
4. The system (100) as claimed in claim 1, further comprising a light sensor (106) to sense an intensity of light of a surrounding area.
5. The system (100) as claimed in claim 4, further comprising a table display unit (118) to display a pre-defined message based on the sensed intensity of light.
6. The system (100) as claimed in claim 1, further comprising a keypad (116) placed on each of food tables at the hotel, to enable the users to provide an input of food items to be ordered.
7. The system (100) as claimed in claim 1, further comprising a power supply (122) to convert an electric current to voltage and current values to be supplied to the control unit (120).
8. A computer-implemented method of managing hotel operations, wherein the method comprising steps of:
receiving a sensed amount of infrared light and a measured concentration of gas from a motion sensor (102) and a gas sensor (104) respectively;
comparing the sensed amount of infrared light and the measured concentration of gas with a pre-defined amount of infrared light and a pre-defined concentration of gas respectively;
actuating a Negative-Positive-Negative (n-p-n) transistor (112) to energize a relay (108) to turn on in-built lights (126a-126n), when the sensed amount of infrared light is not equal to the pre-defined amount of infrared light; and
enabling a sound unit (114) to generate an alert of a pre-set sound to indicate about a gas leakage, when the measured concentration of gas exceeds the pre-defined concentration of gas.
9. The method as claimed in claim 8, further comprising a step of receiving a sensed intensity of light of a surrounding area from a light sensor (106).
10. The method as claimed in claim 9, further comprising a step of displaying a pre-defined message based on the sensed intensity of light.
Date: 30 March 2021
Place: Noida
Dr. Keerti Gupta
Agent for the Applicant
(IN/PA-1529)
, Description:FORM 2

THE PATENT ACT 1970
(39 of 1970)
&

THE PATENTS RULES, 2003

COMPLETE SPECIFICATION
(See Section 10, and rule 13)

SYSTEM AND METHOD FOR MANAGEMENT OF HOTEL OPERATIONS

APPLICANT(S)
NAME: RAJENDRA CH PRASAD
NATIONALITY: INDIAN
ADDRESS: S R ENGINEERING COLLEGE, ANANTHASAGAR (V), HASANPARTHY (M), WARANGAL, TELANGANA 506371

The following specification particularly describes the invention and the manner in which it is to be performed

BACKGROUND
Field of Invention
[001] Embodiments of the present invention generally relate to hotel management systems and particularly to a system and a method for management of hotel operations.
Description of Related Art
[002] Recently, a quality of life is keep improving, and travelling has become an essential entertainment. For striving to be in possession of a travelling market, all proprietors of hotels are struggling with each other to develop themselves in a business and the travelling market has been in a turmoil. Therefore, the proprietors of the hotels have to select an appropriate and a convenient managing system, which is capable of solving issues such as, a food ordering, a gas leakage, and so forth without complicating the managing system. In general, a wasting of an electricity is one of a major issue in the hotels that can make a drastic effect on an energy infrastructure. Further, a spreading of the gas leakage is another major issue in the hotels which needs to be stopped, otherwise a delay in such process may lead to an explosion.
[003] Conventionally, a training on a fire safety and evacuation procedures was provided to kitchen staff for avoiding gas explosions. However, since the kitchen staff keeps changing, therefore it is extremely hard for a hotel management to train all their old and new staff members on the fire safety. Furthermore, many a times in the hotels, a customer needs to wait for a waiter to give an order for a food. This creates a problem when there is a rush in the hotels, especially on weekends. Moreover, now a days, the customer fails to get an enough confidence to order the food due to a coronavirus fear. Conventionally, mobile applications were developed for ordering the food. However, such solution involves a poor authentication and an authorization when a customer rate gets increased.
[004] There is thus a need for an advanced and more-effective system and method for management of hotel operations that can administer the drawbacks faced by conventional systems and methods.
SUMMARY
[005] Embodiments in accordance with the present invention provide a system for management of hotel operations. The system comprising: a motion sensor to sense an amount of infrared light radiating from users while entering a hotel. The system further comprising: a gas sensor to measure a concentration of gas in a surrounding atmosphere. The system further comprising: a control unit connected to the motion sensor and the gas sensor. The control unit is configured to: receive the sensed amount of infrared light and the measured concentration of gas from the motion sensor and the gas sensor respectively; compare the sensed amount of the infrared light and the measured concentration of gas with a pre-defined amount of infrared light and a pre-defined concentration of gas respectively; actuate a Negative-Positive-Negative (n-p-n) transistor to energize a relay to turn on in-built lights, when the sensed amount of infrared light is not equal to the pre-defined amount of infrared light; and enable a sound unit to generate an alert of a pre-set sound to indicate about a gas leakage, when the measured concentration of gas exceeds the pre-defined concentration of gas.
[006] Embodiments of the proposed invention may provide a computer-implemented method of managing hotel operations, wherein the method comprising steps of: receiving a sensed amount of infrared light and a measured concentration of gas from a motion sensor and a gas sensor respectively; comparing the sensed amount of infrared light and the measured concentration of gas with a pre-defined amount of infrared light and a pre-defined concentration of gas respectively; actuating a Negative-Positive-Negative (n-p-n) transistor to energize a relay to turn on in-built lights, when the sensed amount of infrared light is not equal to the pre-defined amount of infrared light; and enabling a sound unit to generate an alert of a pre-set sound to indicate about a gas leakage, when the measured concentration of gas exceeds the pre-defined concentration of gas.
[007] Embodiments of the present invention may provide a number of advantages depending on its particular configuration. First, embodiments of the present application provide a cost-effective system for management of hotel operations that enables users to place their order more efficiently by using a keypad in such tough Coronavirus times.
[008] Next, embodiments of the present invention provide a system for management of hotel operations that continuously monitors a concentration of gas in a surrounding atmosphere and generates an alert in case of a gas leakage.
[009] Next, embodiments of the present invention provide a system for management of hotel operations that reduces an operational cost and a consumption of energy by installing a motion sensor such as, a Passive Infrared Sensor.
[0010] Next, embodiments of the present invention provide a system for management of hotel operations that eliminates a manpower by making the system automatic.
[0011] These and other advantages will be apparent from the present application of the embodiments described herein.
[0012] The preceding is a simplified summary to provide an understanding of some embodiments of the present invention. This summary is neither an extensive nor exhaustive overview of the present invention and its various embodiments. The summary presents selected concepts of the embodiments of the present invention in a simplified form as an introduction to the more detailed description presented below. As will be appreciated, other embodiments of the present invention are possible utilizing, alone or in combination, one or more of the features set forth above or described in detail below.
BRIEF DESCRIPTION OF THE DRAWINGS
[0013] The above and still further features and advantages of embodiments of the present invention will become apparent upon consideration of the following detailed description of embodiments thereof, especially when taken in conjunction with the accompanying drawings, and wherein:
[0014] FIG. 1A illustrates a block diagram of a system for management of hotel operations, according to an embodiment of the present invention;
[0015] FIG. 1B illustrates a schematic representation of the system for management of the hotel operations, according to an embodiment of the present invention;
[0016] FIG. 2 illustrates components of a control unit, according to an embodiment of the present invention; and
[0017] FIG. 3 depicts a flowchart of a method of managing hotel operations, according to an embodiment of the present invention.
[0018] The headings used herein are for organizational purposes only and are not meant to be used to limit the scope of the description or the claims. As used throughout this application, the word "may" is used in a permissive sense (i.e., meaning having the potential to), rather than the mandatory sense (i.e., meaning must). Similarly, the words “include”, “including”, and “includes” mean including but not limited to. To facilitate understanding, like reference numerals have been used, where possible, to designate like elements common to the figures. Optional portions of the figures may be illustrated using dashed or dotted lines, unless the context of usage indicates otherwise.
DETAILED DESCRIPTION
[0019] The following description includes the preferred best mode of one embodiment of the present invention. It will be clear from this description of the invention that the invention is not limited to these illustrated embodiments but that the invention also includes a variety of modifications and embodiments thereto. Therefore, the present description should be seen as illustrative and not limiting. While the invention is susceptible to various modifications and alternative constructions, it should be understood, that there is no intention to limit the invention to the specific form disclosed, but, on the contrary, the invention is to cover all modifications, alternative constructions, and equivalents falling within the spirit and scope of the invention as defined in the claims.
[0020] In any embodiment described herein, the open-ended terms "comprising," "comprises,” and the like (which are synonymous with "including," "having” and "characterized by") may be replaced by the respective partially closed phrases "consisting essentially of," consists essentially of," and the like or the respective closed phrases "consisting of," "consists of, the like.
[0021] As used herein, the singular forms “a”, “an”, and “the” designate both the singular and the plural, unless expressly stated to designate the singular only.
[0022] FIG. 1A illustrates a block diagram of a system 100 for management of hotel operations, according to an embodiment of the present invention. The system 100 may be configured to facilitate a management of the hotel operations in a well-organized way, thereby improves an economy of a hotel. The hotel operations may be, but not limited to, a food ordering, a gas leakage detection, an energy consumption, and so forth. Embodiments of the present invention are intended to include or otherwise cover any type of the hotel operations that needs to be managed for ensuring a safety and a security of the hotel. According to embodiments of the present invention, the system 100 may comprise a motion sensor 102, a gas sensor 104, a light sensor 106, a relay 108, a diode 110, a Negative-Positive-Negative (n-p-n) transistor 112, a sound unit 114, a keypad 116, a table display unit 118, a control unit 120, a power supply 122 and a memory 124.
[0023] The motion sensor 102 may be installed near to an entrance of the hotel, to sense an amount of infrared light that may be radiating from users while entering the hotel, in an embodiment of the present invention. The users may be, but not limited to, customers, hotel managers, waiters, kitchen staff, and so forth. Embodiments of the present invention are intended to include or otherwise cover any type of the users. The motion sensor 102 may be connected to the control unit 120 to transmit the sensed amount of infrared light to the control unit 120. The motion sensor 102 may be, but not limited to, an ultrasonic sensor, a microwave sensor, and so forth. In a preferred embodiment of the present invention, the motion sensor 102 may be a Passive Infrared (PIR) sensor. Embodiments of the present invention are intended to include or otherwise cover any type of the motion sensor 102 including known, related art, and/or later developed technologies.
[0024] The gas sensor 104 may be installed at a kitchen floor in the hotel, in an embodiment of the present invention. In another embodiment of the present invention, the gas sensor 104 may be installed at a roof of a kitchen in the hotel. The gas sensor 104 may be installed to measure a concentration of gas in a surrounding atmosphere. The gas sensor 104 may be connected to the control unit 120 to transmit the measured concentration of gas to the control unit 120. The gas sensor 104 may be, but not limited to, a combustible gas sensor, an electrochemical gas sensor, and so forth. Embodiments of the present invention are intended to include or otherwise cover any type of the gas sensor 104 including known, related art, and/or later developed technologies.
[0025] The light sensor 106 may be installed near to windows and/or doors of the hotel, to sense an intensity of light of a surrounding area. The light sensor 106 may be connected to the control unit 120 to transmit the sensed intensity of light to the control unit 120. The light sensor 106 may be, but not limited to, a photodiode, a phototransistor, and so forth. In a preferred embodiment of the present invention, the light sensor 106 may be a Light Dependent Resistor (LDR). Embodiments of the present invention are intended to include or otherwise cover any type of the light sensor 106 including known, related art, and/or later developed technologies.
[0026] The relay 108 may be an electrical switch that may be electrically connected to in-built lights 126a-126n (hereinafter referred to as the lights 126) (as shown in FIG. 1B) to control operations of the lights based on an output generated by the control unit 120, according to embodiments of the present invention. The relay 108 may be, but not limited to, a coaxial relay, latching relay, a multi-voltage relay, a force-guided contact relay, and so forth. Embodiments of the present invention are intended to include or otherwise cover any type of the relay 108, including known, related art, and/or later developed technologies. In an embodiment of the present invention, the diode 110 may be parallelly connected to the relay 108 to enable a current that may be flowing through a coil of the relay 108 to continue circulating, when the relay 108 is de-energized. The diode 110 may enable the current to continue circulating to avoid a damage of nearby components that may be sensitive to a high voltage. The high voltage may be generated in the coil of the relay 108, when a flow of the current is interrupted. The diode 110 may be, but not limited to, a flywheel diode, a freewheeling diode, and so forth. Embodiments of the present invention are intended to include or otherwise cover any type of the diode 110, including known, related art, and/or later developed technologies. According to an embodiment of the present invention, the n-p-n transistor 112 may be a current controlled circuit that may be used to energize the coil of the relay 108 based on the current received from the control unit 120, in an embodiment of the present invention.
[0027] The sound unit 114 may be installed at various locations in the hotel, to generate an alert based on the output generated by the control unit 120, in an embodiment of the present invention. In a preferred embodiment of the present invention, the sound unit 114 may be a piezo-buzzer. Embodiments of the present invention are intended to include or otherwise cover any type of the sound unit 114 including known, related art, and/or later developed technologies. Further, in an embodiment of the present invention, the sound unit 114 may beep the alert of a pre-set sound based on the output generated by the control unit 120.
[0028] The keypad 116 may be placed on each of a food table at the hotel, to enable the users to provide an input of a list of food items to be ordered based on food options printed on a paper menu. In an exemplary scenario, a numeric key 1 on the keypad 116 may correspond to a food item “Manchurian” and a numeric key 2 on the keypad 116 may correspond to a food item “Veg biryani”. Similarly, a numeric key 9 of the keypad 116 may correspond to a food item “Corn Soup”. The keypad 116 may be, but not limited to, an alphanumeric keypad, a numeric keypad, and so forth. Embodiments of the present invention are intended to include or otherwise cover any type of the keypad 116 including known, related art, and/or later developed technologies. According to embodiments of the present invention, the keypad 116 may be, but not limited to, a touch sensitive display, a button panel, a voice based panel, and so forth. Embodiments of the present invention are intended to include or otherwise cover any type of the keypad 116 including known, related art, and/or later developed technologies.
[0029] The table display unit 118 may be associated with the keypad 116, in an embodiment of the present invention. The table display unit 118 may be provided to display a pre-defined message based on the output generated by the control unit 120. The pre-defined message may be a first pre-defined message such as a “Good Morning” message, in an embodiment of the present invention. In another embodiment of the present invention, the pre-defined message may be a second pre-defined message such as a “Good Evening” message. In an alternative embodiment of the present invention, the table display unit 118 may also be configured to display a name of the list of food items along with their corresponding prices that may be provided by the users through the keypad 116. The table display unit 118 may display a submit button (not shown) that may be pressed by the users to confirm the list of food items ordered by the users and may further be transmitted to a kitchen display unit (not shown) over a communication network (not shown). According to embodiments of the present invention, the communication network may be a data network such as, but not limited to, an Internet, a Local Area Network (LAN), a Wide Area Network (WAN), a Metropolitan Area Network (MAN), and so forth. Embodiments of the present invention are intended to include or otherwise cover any type of the data network, including known, related art, and/or later developed technologies.
[0030] In some embodiments of the present invention, the communication network may be a wireless network, such as, but not limited to, a cellular network and may employ various technologies including an Enhanced Data Rates for Global Evolution (EDGE), a General Packet Radio Service (GPRS), and so forth. Embodiments of the present invention are intended to include or otherwise cover any type of the wireless network, including known, related art, and/or later developed technologies. In an embodiment of the present invention, the table display unit 118 may be, but not limited to, a visual display unit, a Light Emitting Diode (LED) display unit, and alike. Embodiments of the present invention are intended to include or otherwise cover any type of the table display unit 118, including known, related art, and/or later developed technologies.
[0031] According to embodiments of the present invention, the control unit 120 may be configured to execute computer readable instructions stored in the memory 124 to generate outputs to manage the hotel operations. The control unit 120 may be, but not limited to, a microcontroller, a microprocessor, a development board, a digital signal processor, and alike. In a preferred embodiment of the present invention, the control unit 120 may be an Arduino. Embodiments of the present invention are intended to include or otherwise cover any type of the control unit 120, including known, related art, and/or later developed technologies. In an embodiment of the present invention, the control unit 120 may be connected to the power supply 122 that may be an electrical device to convert an electric current that may be received from a power source to voltage and current values to be supplied to the control unit 120. The power supply 122 may be, but not limited to, a Direct Current (DC) power supply, a regulated power supply, an uninterrupted power supply, and so forth. In a preferred embodiment of the present invention, the power supply 122 may be an Alternate Current (AC) power supply. Embodiments of the present invention are intended to include or otherwise cover any type of the power supply 122, including known, related art, and/or later developed technologies. Further, the working of the components of the control unit 120 will be explained in detail in conjunction with FIG. 2.
[0032] The memory 124 may be connected to the control unit 120 for storage and retrieval of data associated with the hotel operations, according to embodiments of the present invention. Further, the memory 124 may be used to store the computer readable instructions executed by the control unit 120. According to embodiments of the present invention, non-limiting examples of the memory 124 may be a Read Only Memory (ROM), a Random-Access Memory (RAM), an erasable programmable read only memory, an electrically erasable programmable read only memory, a hard drive, a removable media drive for handling memory cards. Embodiments of the present invention are intended to include or otherwise cover any type of the memory 124, including known, related art, and/or later developed technologies.
[0033] FIG. 1B illustrates a schematic representation of the system 100 for the management of the hotel operations, according to an embodiment of the present invention. The system 100 may comprise the motion sensor 102, the gas sensor 104, the light sensor 106, the relay 108, the sound unit 114, the keypad 116, the table display unit 118 and the power supply 122. In an embodiment of the present invention, the motion sensor 102, the gas sensor 104, the light sensor 106, the relay 108, the sound unit 114, the keypad 116, the table display unit 118 and the power supply 122 may be connected to the control unit 120. In an embodiment of the present invention, the motion sensor 102, the gas sensor 104, the light sensor 106 and the power supply 122 may be connected to the control unit 120 for providing inputs to the control unit 120. In an alternative embodiment of the present invention, the relay 108, the sound unit 114, the keypad 116 and the table display unit 118 may be connected to the control unit 120 for receiving the outputs from the control unit 120.
[0034] FIG. 2 illustrates the components of the control unit 120, according to an embodiment of the present invention. The components may be, a data receiving module 200, a comparison module 202, a light control module 204, a sound control module 206, an output module 208 and a transmission module 210.
[0035] The data receiving module 200 may be configured to receive the sensed amount of infrared light and the measured concentration of gas from the motion sensor 102 (as shown in the FIG. 1A) and the gas sensor 104 (as shown in the FIG. 1A) respectively, in an embodiment of the present invention. The data receiving module 200 may also be configured to receive the sensed intensity of light and the list of ordered food items from the light sensor 106 (as shown in the FIG. 1A) and the table display unit 118 (as shown in the FIG. 1A) respectively.
[0036] The data receiving module 200 may be configured to transmit the sensed amount of infrared light, the measured concentration of gas and the sensed intensity of light to the comparison module 202, in an embodiment of the present invention. In an alternative embodiment of the present invention, the data receiving module 200 may be configured to transmit the received list of ordered food items to the transmission module 210.
[0037] In an embodiment of the present invention, the comparison module 202 may be configured to compare the sensed amount of infrared light with a pre-defined amount of infrared light stored in the memory 124 (as shown in the FIG. 1A). In an embodiment of the present invention, the comparison module 202 may be configured to generate a light activation signal, when the sensed amount of infrared light is not equal to the pre-defined amount of infrared light. In such embodiment of the present invention, the comparison module 202 may be configured to transmit the generated light activation signal to the light control module 204. In another embodiment of the present invention, the comparison module 202 may be configured to enable the data receiving module 200 to continue receiving the sensed amount of infrared light from the motion sensor 102.
[0038] In an embodiment of the present invention, the comparison module 202 may be configured to compare the measured concentration of gas with a pre-defined concentration of gas stored in the memory 124. In an embodiment of the present invention, the comparison module 202 may be configured to generate a sound activation signal, when the measured concentration of gas exceeds the pre-defined concentration of gas. In such embodiment of the present invention, the comparison module 202 may be configured to transmit the generated sound activation signal to the sound control module 206. In another embodiment of the present invention, the comparison module 202 may be configured to enable the data receiving module 200 to continue receiving the measured concentration of gas from the gas sensor 104.
[0039] Further, the comparison module 202 may also be configured to compare the sensed intensity of light with a pre-set intensity of light stored in the memory 124. In an embodiment of the present invention, the comparison module 202 may be configured to generate a first message display signal, when the sensed intensity of light is greater than the pre-set intensity of light. In another embodiment of the present invention, the comparison module 202 may be configured to generate a second message display signal, when the sensed intensity of light is less than the pre-set intensity of light. The comparison module 202 may be configured to transmit the generated first message signal and the second message signal to the output module 208.
[0040] The light control module 204 may be configured to actuate the n-p-n transistor 112 (as shown in the FIG. 1A) to energize the relay 108 (as shown in the FIG. 1A) to supply an electrical power to the lights 126 (as shown in the FIG. 1B) to turn on the lights 126 based on the received light activation signal, in an embodiment of the present invention. The sound control module 206 may be configured to enable the sound unit 114 (as shown in the FIG. 1A) to generate the alert of the pre-set sound based on the received sound activation signal. The sound control module 206 may be configured to enable the sound unit 114 to generate the alert to indicate about a gas leakage.
[0041] Further, the output module 208 may be configured to enable the table display unit 118 (as shown in the FIG. 1A) to display the first pre-defined message based on the received first message signal, in an embodiment of the present invention. In another embodiment of the present invention, the output module 208 may be configured to enable the table display unit 118 to display the second pre-defined message based on the received second message signal.
[0042] In an embodiment of the present invention, the transmission module 210 may be configured to transmit the received list of ordered food items to the kitchen display unit over the communication network.
[0043] FIG. 3 depicts a flowchart of a method 300 of managing the hotel operations, according to an embodiment of the present invention.
[0044] At step 302, the system 100 may receive the sensed amount of infrared light from the motion sensor 102.
[0045] At step 304, the system 100 may receive the measured concentration of gas from the gas sensor 104.
[0046] At step 306, the system 100 may compare the sensed amount of infrared light and the measured concentration of gas with the pre-defined amount of infrared light and the pre-defined concentration of gas respectively.
[0047] At step 308, if the sensed amount of infrared light is not equal to the pre-defined amount of infrared light, then the method 300 may proceed to a step 312. Otherwise, the method 300 may return to the step 302.
[0048] At step 310, if the measured concentration of gas exceeds the pre-defined concentration of gas, then the method 300 may proceed to a step 314. Otherwise, the method 300 may return to the step 304.
[0049] At the step 312, the system 100 may actuate the n-p-n transistor 112 to energize the relay 108 to turn on the lights 126.
[0050] At the step 314, the system 100 may enable the sound unit 114 to generate the alert of the pre-set sound to indicate about the gas leakage.
[0051] Embodiments of the invention are described above with reference to block diagrams and schematic illustrations of methods and systems according to embodiments of the invention. It will be understood that each block of the diagrams and combinations of blocks in the diagrams can be implemented by computer program instructions. These computer program instructions may be loaded onto one or more general purpose computers, special purpose computers, or other programmable data processing apparatus to produce machines, such that the instructions which execute on the computers or other programmable data processing apparatus create means for implementing the functions specified in the block or blocks. Such computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means that implement the function specified in the block or blocks.
[0052] While the invention has been described in connection with what is presently considered to be the most practical and various embodiments, it is to be understood that the invention is not to be limited to the disclosed embodiments, but on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims.
[0053] This written description uses examples to disclose the invention, including the best mode, and also to enable any person skilled in the art to practice the invention, including making and using any devices or systems and performing any incorporated methods. The patentable scope the invention is defined in the claims, and may include other examples that occur to those skilled in the art. Such other examples are intended to be within the scope of the claims if they have structural elements that do not differ from the literal language of the claims, or if they include equivalent structural elements within substantial differences from the literal languages of the claims.