Patent Application
20170161803
Technical Field
The invention relates to the monitoring and control of household appliance. More particularly, the invention relates to a smart-grid having PLC networked sensors.
Description of the Background Art
Communication using power line has been limited, until recently, to a few local area networks (LANs) within homes or offices or, at best, within apartment complexes. Power line communication has also been used in a limited number of applications where other types of communication methods do not provide sufficient security and remote connectivity, such as for power line control applications.
Basic devices for connecting to the power line for communication and power supply have been designed and are used to provide service within LANs. But, due to the availability of more efficient competing technologies, the infrastructure for power line communication (PLC) has never been developed enough to make it a mainstream technology. This can be attributed to various reasons, including the higher cost of available devices, the lack of suitable devices for communication using the PLC technology, etc. The result has been that PLC has not found a path for growth in the standard voice and data communication field catered to by technologies such as xDSL, cell phones, and satellite communications.
Because the capability for in-home connectivity is part of the PLC network, with special monitoring sensors it is possible to monitor and control appliances connected to these sensors. An embodiment of the invention provides an application that uses PLC technology to provide a full service capability to the consumer and utilities, thus enabling the process of monitoring, billing for usage, verification of billed usage, and payment for the utilities in the home.
Accordingly, an embodiment of the invention provides an integrated service facility to homes via in-home power line networking, where such networking provides communication and media streaming, remote power monitoring and control, and utility and infrastructure monitoring. Such monitoring and control is accomplished by use of sensor devices that connect appliances to the power line network, and the provide the capability to communicate to a local server configured with required software and having appropriate storage capability. The server is also configured to facilitate billing and payment for power and other utility usage.
A smart-grid residential service (SRS) uses connected sensors for integrated service monitoring and control of home appliances via the Internet and an in-home PLC network. Such sensors collect power usage information and include an intelligent master device and any of a communication enabled switch, a ZigBee® enabled switch, and a power control switch, each of which operate over a power line communication (PLC) network. The master collects, compiles, and communicates collected data to the network. The SRS provides infrastructure, i.e. communication, IP-TV, climatic control, etc. monitoring and control, power monitoring and control of connection enabled home appliances, other utility usage monitoring, and security monitoring and control. The SRS also provides billing and collection information for the monitored utilities to utility companies.
The Power Control Switch Device (SW)
The SW 100 allows an appliance in the home or office to be connected to the power supply through a power plug on the device. The device provides for the monitoring of power consumption with capability for remote control of the power supply to the connected appliance via the Internet and the PLC network.
The Data Communication (Ethernet) Enabled Switch Device (ETH)
The ETH 200 allows an appliance in the home or office to be connected to the power supply through the ETH 200 and provides for the monitoring of power consumption with capability for remote control of the connected appliance. The ETH 200 also provides the capability for broadband PLC-based data communication, where the data and communication devices are connected to the power distribution line through a communication port, typically an Ethernet port on the ETH 200. Multiple ETH 200 units can be used to establish a PLC based local area network (LAN) for communication.
In
The broadband communication module 209 is also enabled with a unique address so that communication to it and from it can be identified. Because the broadband communication elements are bidirectional, the broadband communication module can send and receive full duplex broadband communication between itself and any communication device connected to the RJ45 connector 215 via the MCU 207. Similarly, the communication module 209 can send out information streams comprising the power usage and status of the plug to the AC power distribution lines 101, and receive command and control information streams from the AC power distribution lines 101. The received data and command and control information streams are decoded, the address is checked to see if it correct, and the streams are decrypted, if needed, based on the address. The communication module 209 then converts the received data stream into an analog format and sends it through the MII interface of the MCU for transfer through the PHY to the RJ45 module 215, and thence to the connected customer device. Similarly, the communication module sends the command and control information to the MCU 207 for interpretation. The MCU 207 then generates instructions to the power meter and relay module 104 that are used by the power meter and relay module 104 to control the power flow to the power plug 103, and thence to the appliance connected to the power plug 103.
The use of multiple ETH 200 devices within a home or office enables PLC local area network connectivity within the home or office. Here, the disclosed use of broadband communication within the PLC LAN, using the ETH devices, enables streaming media delivery capability and IPTV delivery capability for connected display devices, connected to appropriate communication units within the PLC LAN.
The ZigBee® Enabled Switch Device (Z-SW)
The Z-SW 300 has a power plug 103 that is connected to the AC power distribution lines 101 through a power meter and relay 104. The relay in the power meter and relay module 104 provides the capability to switch on or switch off the supply to the power plug 103 remotely. It also allows for controlling the power supplied to the plug when a power control module is included in the power meter and relay module 104. The power meter in the power meter and relay module 104 monitors the power usage by the appliances connected to the power plug. The power meter and relay module 104 is connected via bi-directional communication links 106 to a microcontroller (MCU) 107. The MCU 107 accepts the information on the power usage from the power meter and relay module 104 and compiles this information prior to transfer to the broadband communication module 109. The power meter in the power meter and relay module 104 continuously monitors the flow of power to the power plug 103 and feeds the information to the MCU 107 through the communication links 106. The power usage information is compiled by the MCU 107 and sent to a broadband communication module 109 via communication links 108 connected to a UART enabled port on the communication module 109, thus enabling the compiled data to be transmitted out.
The operational commands for the ZigBee® unit 310 of the Z-SW 300 are received over the power line at the broadband communication module 109 as a data stream. These commands are demodulated, decrypted, and provided to the MCU 107 over the communication links 109 via the UART enabled port. The MCU 107 converts the data into instructions and passes them on to the ZigBee® unit 310 via the bidirectional port 311 over the link 312. The ZigBee® unit 310 sends out commands to the ZigBee® technology enabled appliance connected to the Z-SW 300, based on received instructions, to execute operational commands of reading meters, changing temperature settings, etc. The response after the command has been executed is sent back to the built-in ZigBee® unit 310 by the ZigBee® technology enabled appliance, which then transfers it to information and passes it on to the MCU 107 via the bidirectional link 312 through the port 311. The MCU collects the information and forwards it with the address to be responded to by the broadband communication module 109 via communication links 108 connected to the UART enabled port on the communication module 109.
In the example of
The Master Device (MST)
The MST 400 provides the computing power and storage capability necessary to collect and compile power consumption information provided to it. The MST enables the collected data to be transmitted to a wide area network for group compilation. The connected SW 100, ETH 200, and Z-SW 300 devices within the home or office monitor the power usage of devices and appliances connected to their respective power plugs. This information is sent over the local power distribution lines in the home or office to the MST 400 for compilation of data on usage. With the capability and computing power available and with appropriate software, the MST 400 can exert local and emergency control of the appliances connected to the SW 100, ETH 200, and Z-SW 300 devices. The MST 400 also acts as a gateway connecting to the broadband communication modem to enable a communication pathway to the internet cloud/wide area network (WAN) cloud.
The gateway provided by the MST 400 is also used to send out the collected and processed information on the power usage and utility usage, as well as the status of the power monitoring and relay units within the PLC, for enabling control of the power plug 103. Any remote control commands are received from the Web via the gateway provided by the MST 400 for transfer to connected SW 100, ETH 200, and Z-SW 300 units for control of the power flow to connected appliances. In the MST 400, the modulation, frequency band, and data rates are the same as those used for the information and command transfer within the PLC network. The SOC 407 is enabled to enforce all communication related security protocols associated within the PLC network.
All data and power monitoring and control information is sent to the SOC 407 by the connected SW 100, Z-SW 300, and ETH 200 within the home or office via the power distribution lines 101 through the coupler filter module 111 and the communication module 409. The communication module 409 of the MST 400 is used to demodulate the incoming streams and decrypt them prior to transferring them to the MCU that forms part of the SOC 407. The SOC 407 receives the information and processes it, by compiling and consolidating it, for outward transmission to the Web.
The SOC 407 also has a memory 417 associated with it, typically connected to a memory port on the SOC 407. The memory 417 enables the SOC 407 to store the received power monitoring and control information prior to processing and compiling the information. The memory 417 is also used to store the compiled information to transmit it out through the gateway optimally when the bandwidth usage for data communication is low. The memory 417 also stores the transaction history with a timestamp for the data communication and power usage information transmitted out, and for incoming remote commands sent to the connected SW 100 and ETH 400 within the home or office. The memory 417 provides for tracking of performance and remote debugging capability with pinging and path tracking capability for the MST 400, as well as the connected SW 100 and ETH 200.
The MST 400 provides a power plug 103 of its own that is connected to the power distribution lines 101 through a power meter and relay 104 for connecting any needed appliance with the necessary power monitoring and control capability. This monitored information is sent to the MCU, which is implemented as an SOC 407, to be combined with the information received over the PLC LAN over the power distribution lines 101 through the coupler filter module 111 and the communication module 409. This collected information forms part of the power monitoring information input to the MST 400. The power monitoring information is stored in the memory and compiled and processed for transmission to the monitoring sources in the WAN through the modem connected to the SOC 407 port with the RJ45 connector 415. The transfer of the compiled information is typically done as in store and forward manner with storage in the memory 417 to enable best use of the available bandwidth of the gateway, as discussed earlier.
Remote control commands received via the gateway are received through duplex port with the RJ45 connector 415 from the connected modem. These control commands are interpreted by the SOC 407 of the MST 400 and sent to the respective SW 100, ETH 200, or Z-SW 300 to which it is addressed over the broadband PLC network through communication module 409 and coupler filter module 111 for necessary action at the addressed receiving units.
Usage of the Sensors Over the PLC Network
As described above, the individual sensor devices SW 100, ETH 200, Z-SW 300, and MST 400 are used in the appropriate locations to connect and control appliances on the PLC network. The SW devices 100 are used to monitor and control the power that is supplied to connected appliances. The Z-SW 300 devices enable the power monitoring and control of the connected appliances, as with the SW 100 and, in addition, provide remote operational control of a connected ZigBee® technology enabled intelligent appliances. Also, the Z-SW 300 on the PLC network 600 uses ZigBee® technology to connect to intelligent utility meters for gas, water, etc. for monitoring of the utility usage. The ETH 200 is used to provide power monitoring and control capability, as well as communication and streaming media capability for connected communication and TV units within the home. The MST 400 is used to collect the power usage information from the various sensor units connected over the PLC circuit and to store and consolidate the usage information. The MST 400 acts as a gateway to the internet wide area network (WAN) to send and receive data and control information. The received data and communication packets are forwarded to the ETH 200 devices to enable communication and streaming media capabilities of the PLC network.
The detailed operation of the sensor units and the in-home PLC network are described in the patent application Ser. No. 13/197,623, filed Aug. 3, 2011 which, in turn, claims priority to U.S. patent application Ser. No. 13/153,194, filed Jun. 3, 2011 which, in turn, claims priority to U.S. patent application Ser. No. 13/032,454, filed Feb. 22, 2011, each of which claim inventions made by the same inventors and assigned to the same assignee, and each of which are all incorporated herein in its entirety by this reference thereto.
As shown in
The SRS System
In
The SRS system 500 also provides the consumer with the capability to monitor and compare current utility usage with past usage data for utilities to optimize and reduce the usage at individual connected appliances. It also provides the consumer with the capability to monitor and control, via remote as well as local control, the individual connected appliances through the WAN and PLC network to reduce usage and eliminate waste. Thus, a significant aspect of the invention is its contribution to ‘green’ technology.
Even though the use of the SRS server is shown herein as being connected to one home 510, those skilled in the art will appreciate that the invention is not so limited. The SRS server 520 typically has enough computing power and storage capability to handle a number of connected homes in a local area that form a home group.
Once the information is collected and stored, the SRS server 520 provides the utility usage information to appropriate connected utility center offices 540 of utility companies to check and generate billing for individual homes, such as home 510 in the home group. Typical connected utility companies can include a power and gas utility 541, water supply utility 542, security company 543, TV company 544, and phone and Internet company 545. The bills are sent back to the SRS server 520 by the individual utilities 540, where it can be checked by the consumer against the utility usage using the PLC network 600 and WAN 530 connectivity to the SRS server 520. Once agreement has been reached, the consumer initiates payment to the utility company through the capabilities of the SRS server 520 of the SRS system 500.
Each connected sensor device in the home collects the power usage information and the utility usage information from the connected appliances and meters. For example, the Z-SW 300-3 monitors the water usage using the ZigBee® connection to the ZigBee® enabled water meter 609 (S1001).
The connected sensor devices comprising at least any one of an SW 100, ETH 200, Z-SW 300 send the collected information to the in-home MST 400-1 over the power line of the in-home PLC network 600 for consolidation. In this example, the water usage information from the meter 603 sent by the Z-SW 300-3 is also included with the information sent over the PLC network 600 (S1002).
The MST 400-1 receives the information sent over the PLC network 600 by the individual sensors and stores and consolidates the information where needed, for example the power usage for the home is consolidated (S1003).
The MST 400-1 transmits the individual and consolidated information to the connected SRS server 520 over the Internet when requested by the SRS server 520 (S1004).
The SRS server 520 receives the information from all the homes associated with the SRS server 520. The received information from each home is linked with the home identity and consumer identity and stored in pre-defined format in the database 523 of the SRS server 520 with full traceability to the originating in-home sensor devices. It also consolidates the utility usage information for individual utility center, such as PG&E 541, water utility 542, home security service 543, TV utility 544, communication utility 545, etc. separately and stores the information in the database 523 (S1005).
The consolidated usage information of each utility, for each home, for specified billing periods, as generated by the SRS server 520 is sent to the specific utility center. For example, the consolidated information from home 510 on water usage over a specified billing period is sent to the water utility center 542 for generating a bill for the period. In the same way, the consolidated usage information for power usage and gas usage from home 510 is sent to PG&E for generating a bill for power and gas for the specified period (S1006).
The utility centers 541 to 545 accept the billing information from the home 510 sent to them by the SRS server 520 over the WAN. The bill for the home 510 for a specific utility usage for the period is generated by the individual utility center and sent back to the SRS server 520 for forwarding to the consumer over the communication pathway over the WAN to the MST 400-1 of the home 510 (S1007).
The SRS server receives the bills for the home 510 from the utility centers 541 to 545, stores a copy of each for reference in the data base 523, and sends the bills to the MST 400-1 of home 510 for checking and payment (S1008).
The MST 400-1 receives the bill for the individual utilities and provides it to the consumer over the communication channels of the PLC network 600 for viewing and action (S1009).
The consumer using the communication capability of the ETH 200, e.g. the ETH 200-2 using the Internet connection, checks the bills received against consolidated utility usage information stored in the memory of the MST 400-1 and also checks the prior usage for similar periods of usage stored in the data base 523 of the SRS server 520 (S1010).
Once the checking and verification is done, the consumer pays the individual bills to each of the utilities using the secure bill payment facility, using any approved means of payment available through the SRS system 500. The SRS system is then able to store all the payments made for future verification in the database 523 of the SRS server 520 for future tracking. The approved mode of payment can include any of credit card payment, bank transfer, etc. (S1011).
A person skilled-in-the-art would readily appreciate that the invention disclosed herein is described with respect to specific exemplary embodiments of the devices and systems currently used. It is also possible to provide other formats for presentation of the collected data and information, which may be more in line with the policy maker's needs. However, these described embodiments should not be considered limitations on the scope of the invention. Specifically, other implementations of the disclosed invention are envisioned and hence the invention should not be considered to be limited, to the specific embodiments discussed herein above. The system may be implemented with processing in dedicated central computing facility, in distributed computing facility in the WAN cloud, or a combination of the two. The units, devices, and systems may be implemented as hardware, software implemented and running over hardware such as computers, distributed or otherwise, as assembly of individual components, and/or as a combination of components and integrated circuits or SOCs. The invention should not be considered as being limited in scope based on specific block level details, but should be considered on the basis of current and future envisioned functionality.
Although the invention is described herein with reference to the preferred embodiment, one skilled in the art will readily appreciate that other applications may be substituted for those set forth herein without departing from the spirit and scope of the present invention. Accordingly, the invention should only be limited by the Claims included below.
This application is a continuation of U.S. patent application Ser. No. 13/249,058, filed Sep. 29, 2011, which is a continuation-in-part of U.S. patent application Ser. No. 13/197,623, filed Aug. 3, 2011, which issued as U.S. Pat. No. 8,644,166, which application is a continuation-in-part of U.S. patent application Ser. No. 13/153,194, filed Jun. 3, 2011, which issued as U.S. Pat. No. 8,364,326, which application is a continuation-in-part of U.S. patent application Ser. No. 13/032,454, filed Feb. 22, 2011, which issued as U.S. Pat. No. 8,755,946, each of which is incorporated herein in its entirety by this reference thereto.
| Number | Date | Country | |
|---|---|---|---|
| Parent | 13249058 | Sep 2011 | US |
| Child | 15360911 | US |
| Number | Date | Country | |
|---|---|---|---|
| Parent | 13197623 | Aug 2011 | US |
| Child | 13249058 | US | |
| Parent | 13153194 | Jun 2011 | US |
| Child | 13197623 | US | |
| Parent | 13032454 | Feb 2011 | US |
| Child | 13153194 | US |
