Patent Publication Number: US-2017358952-A1

Title: Method and Process for a Smart Door System

Description:
FIELD OF THE INVENTION 
     The present invention relates the wireless power distribution and wireless communication. 
     BACKGROUND 
     Adding Smart functions to entry doors use ad-hock methods, leveraging aftermarket systems such as electronic locks, cameras, and mics. These systems all require power and communication. Power is provided using umbilical cabling between the door and the door frame or batteries contained within the device or a combination of both. Communication is typically wireless, leveraging existing home Wi-Fi networking and or near field communications, such as, Bluetooth with a smartphone or other electronic key. Batteries used in such application are of the disposable type, not rechargeable. 
     SUMMARY OF THE INVENTION 
     In accordance with one aspect of the invention, there is provided a wireless connection between the Door and the Door Frame as a means of transmitting power leveraging coils that transmit power from the Door Frame coil (Power Transfer Unit) to the Door Coil (Power Receive Unit). 
     In accordance with another aspect of the invention, there is provided a means to mount the Power Transfer Unit to the Door frame such that the transmitting surface of the Power Transfer Unit is within proximity of the Power Receive Unit when the Door is in the closed position. 
     In accordance with another aspect of the invention, there is provided a means to integrate the Power Transfer Unit Resonator into the sleeve of the door locking mechanism, and the Power Receive Unit Resonator into the bolt of the door locking mechanism. 
     In accordance with another aspect of the invention, there is provided a means to integrate the Power Transfer Unit Resonator into the door strike plate of the door locking mechanism, and the Power Receive Unit Resonator into the door frame plate of the door locking 
     In accordance with another aspect of the invention, there is provided a means to mount the Power Receive Unit to the Door such that the receiving surface of the Power Receive Unit is within proximity of the Power Transfer Unit when the Door is in the closed position so power can be transmitted and received between the Power Transfer Unit and the Power Receive Unit. 
     In accordance with another aspect of the invention, an external power source is connected to the Power Transfer unit so the power can be transformed for the purpose of transmitting power to the Power receive unit and for the electronic control needed to perform such transformation. 
     In accordance with another aspect of the invention, an external rechargeable or non-rechargeable battery or other means employed to store power is connected to the Power Receive Unit as a means to supply power to electronic functions located in the Door and maintaining the charging of said battery. When the distance between Power Transfer Unit and the Power Receive Unit is less than or equal to the maximum spacing specification for power transfer, power is transferred between the Power Transfer Unit and the Power Receive Unit, powering and/or storing power to the rechargeable or non-rechargeable battery for use by the attached electronic device. When the proximity between the Power Transfer Unit and the Power Receive Unit exceeds the maximum distance specification for power transfer the attached electronic device is powered by the rechargeable battery or non-rechargeable battery. 
     In accordance with another aspect of the invention, the Power Receive Unit is the only means to supply power to electronic functions located in the Door. When the distance between Power Transfer Unit and the Power Receive Unit is less than or equal to the maximum spacing specification for power transfer, power is transferred between the Power Transfer Unit and the Power Receive Unit, powering the attached electronic device. When the proximity between the Power Transfer Unit and the Power Receive Unit exceeds the maximum distance specification for power transfer the attached electronic device is not powered. 
     In accordance with another aspect of the invention, in-band communication via PTU/PRU coils and/or out of band communication via Bluetooth when exercising the specification can be utilized to communicate, for example, battery charging requirements, charging statistics, and other related statistics and metrics. 
     In accordance with another aspect of the invention, a standard door bell circuit is modified to provide continuous power within close proximity to the Power Transfer Unit. The circuit modification requires removal of the existing Door Bell, bridging the removed wire together so all devices on this new circuit are directly connected with the existing Door Bell transformer or a higher power replacement transformer driving this circuit. The existing Door Bel Switch also needs to be replaced with a Door Bell Transmitter switch device. The replacement Door Bell is controlled by a radio receiver which is paired to the new Door Bell Transmitter switch. This arrangement restores the door bell function while providing continuous power to the Power Transfer Unit by extending the low voltage wiring from the Door Bell switch transmitter that has local proximity to the Power Transfer Unit located in the door frame. 
    
    
     
       BRIEF DESCRIPTION OF THE FIGURES 
       Other aspects and advantages of the invention will become apparent upon reading the following detailed description and upon reference to the drawings in which: 
         FIG. 1 . Is a functional block diagram illustrating the components that comprise the Power Transfer Unit, the Power Receive Unit and method for wireless transmission power between the Power Transfer Unit and the Power Receive Unit 
         FIG. 2 . Is a more detailed functional block diagram illustrating the Power Transfer Unit coupled to an Bluetooth communication port, the Power Receive Unit, with a optional rechargeable battery supply system, supporting a keyless entry device using an integrated Bluetooth communication, a MCU with out of band wireless, connecting the Bluetooth port  261  to Bluetooth Port  232 . 
         FIG. 3 . Is a block diagram of sample implementation of an entry Door with placement of the Power Transfer Unit, Power receive Unit with an optional rechargeable battery, entry camera and an alternate keyless entry device. 
         FIG. 4 . A block diagram of the integration of the Power Transfer Unit Resonator into the sleeve of the door locking mechanism, and the Power Receive Unit Resonator into the bolt of the door locking mechanism. 
         FIG. 5 . A block diagram of the integration of the Power Transfer Unit Resonator into the door strike plate of the door locking mechanism, and the Power Receive Unit Resonator into the door frame plate of the door locking 
         FIG. 6A . A block diagram of existing typical electrical door bell installations that includes a step down transformer, door bell ringer, and switch. 
         FIG. 6B . A block diagram of existing typical electrical door bell installations that includes a step down transformer, door bell ringer, and switch with modification showing reconfiguration to power the Power Transfer Unit in a door jam. 
     
    
    
     DETAILED DESCRIPTION OF THE INVENTION 
     In the following detailed description numerous specifics are set forth in order to provide a thorough understanding of the present invention. However, the present invention may be used without understanding many of these specific details. 
     Referring to drawings,  FIG. 1  illustrates the basic components of a wireless power transfer system comprised of two components. One component the Power Transfer Unit  101  receives its power thru cable  107  into power supply  104  that supplies power for the rest of the functional blocks within the Power Transfer Unit. Operational management from a micro-processor  105  controls state of the power amp  102  which generates high frequency energy into the TX Resonator  106 . Communication needed for various feedback information is accommodated by the Communication block  103  using in-band thru the TX Resonator or out of band using Bluetooth. 
     The other component is the Power Receive Unit  110  which get its power from the RX Resonator  112  from the radiated energy form TX Resonator  106  via electromagnetic coupling  108 . The power from the RX Resonator is managed by the Power Regulator  111  and sent to the DC to DC converter  113  which provides power for the Micro-Processor  115  that manages the Power Receive Units Communication function  114  in order to provide the feedback path to the Power Transfer Unit  101  for the purpose of increasing or decreasing power emanating from TX Resonator  106 . The output power of the PRU is via connector  116 . 
       FIG. 2  illustrates in more detail the functional blocks that make up the Power Transfer Unit previously described in  FIG. 101  with the additional capability of a hard ware communication function, Bluetooth, combined into the Micro-Processor block  226 . This illustration shows the Keyless Entry function connected to the Power Receive Unit  201 &#39;s Micro-Processor  208  for the purpose of sending and receiving information vis wireless channel  217  which then connects to the hardware Bluetooth  232  thru the Power Transfer Unit  221 &#39;s Micro-compressor  226 . 
     Furthermore,  FIG. 2  illustrates an optional rechargeable Battery  203  which supplies power to the Keyless entry device  207  via an optional Battery Charger  202  coupled to DC to DC converter  231 . 
     Furthermore,  FIG. 2  illustrates a optional rechargeable Battery  203  is recharged from energy received by the Rx Resonator  204  coupled to Rectifier  205  which is coupled to DC to DC converter  206  which supplies power to an optional Battery Charger  202 . 
       FIG. 3  illustrates a sample implementation if an Entry Door  302  hung in Door Frame  301  using hinges  303 . This sample representation of an entry camera is shown as  307  is connected to Door  302  and receives its power from Power Receive Unit  305 A and the associated optional rechargeable Battery  305 B both of which is placed within a hollowed out cavity of Door  302 . The power to charge the optional rechargeable Battery and also power the Power Receiving Unit  305 A is supported by the Power Transfer Unit  304  shown here in a cavity in the Frame such that when the door is in the closed position the TX Resonator of the Power Transfer Unit  304  is in close proximity of the RX Resonator of the Power Receive Unit  305 A. 
       FIG. 3  also illustrates a Keyless entry power and communication method where the Keyless Entry mechanism is combined with the Power Receive Unit  306 A that receives operating power from Power Transfer Unit  310  that can be combined with the Keyless Lock striker. An optional rechargeable Battery  306 B may be used to power the Keyless entry module  306 A when the door is open. In each case the Power Transfer Unit  310  is supplied power from the outside using AC current  309 . In the case where no battery is used, the keyless entry module  306 A loses power and becomes un-operational when the door  302  is open, when the door  302  is closed the keyless entry module  306 A powers up and resumes its normal operational state. 
       FIG. 4  illustrates the PTU resonator  406  integration into the door lock strike plate  402  sleeve  405 . The PRU resonator  407  is integrated into the door lock  401  lock bolt  404 . The lock bolt  404  is inserted into the door lock sleeve  405  via the function of the keyless or keyed entry  406  control. When this event occurs the PTU Resonator  406  provides power to the PRU Resonator  407 . PTU Resonator connector  409  provides the electrical connection to the PTU Resonator  406 . PRU Resonator connector  408  provides the electrical connection to the PTU Resonator  407 . In the case where both the Door Lock  401  and Door Lock strike plate  402  have the required physical area, the complete PTU  101  and the complete PRU  110  can be integrated respectively in the associated Door Lock  401  and Door Lock strike plate  402 . PTU Resonator connector  409  and PRU Resonator connector  408  can then be used for the electrical connection  107  and  116  respectively. 
       FIG. 5  illustrates the PTU resonator  506  integration into the Door Lock Strike plate  502 . The PRU resonator  507  is integrated into the Door Lock  501 . When the door is closed, Door Lock  501  mates with Door Lock Strike Plate  502 . When this event occurs the PTU Resonator  506  provides power to the and PRU Resonator  507 . PTU Resonator connector  509  provides the electrical connection to the PTU Resonator  506 . PRU Resonator connector  508  provides the electrical connection to the PTU Resonator  507 . In the case where both the Door Lock  501  and Door Lock strike plate  502  have the required physical area, the complete PTU  101  and the complete PRU  110  can be integrated respectively in the associated Door Lock  501  and Door Lock strike plate  502 . PTU Resonator connector  509  and PRU Resonator connector  508  can then be used for the electrical connection  107  and  116  respectively 
       FIG. 6A  illustrates a typical door bell wiring scheme used in most existing houses. AC transformer  602  is powered by house current  601 . Low voltage wiring  603  is routed to an electrical junction box  604  centrally located in the house. A second low voltage wire  606  is routed from the electrical box  604  to a location next to a door. A door bell push button  607  is attached to the end of low voltage wire  606 . A door bell  605  is attached connect to the wiring shown in electrical box  604 . The Electrical current flows through the Door Bell when the Door Bell Push Button is closed, completing the circuit causing the door bell to ring. 
     Because of the physical proximity between the Door Bell Switch and the Door, it is desirable to use this existing wiring  603  and  606 . The circuit modification is shown in  FIG. 6B  electrical box  604 A. The addition of low voltage wires  610  are routed from the existing Door Bell switch to the location of the PTU resonator located in the door jam of an existing door extending the ability of the existing transformer  602  to power the PTU resonator. Circuit modification in Electrical box  604 A enables continuous current from transformer  602  to be available to PTU. Door Bell function is restored by using the existing wiring, which now provides continuous current to any device attached across this circuit. 
     To restore the Door Bell function, as shown in  FIG. 6B , an electronic door bell  608  is powered by the existing wiring. Electronic Door Bell  608 , which contains wireless receiver, receives a wireless activation signal from Electronic Door Bell Push Button which contains a wireless transmitter  609  which is powered by the reconfigured wire  606 .