Patent Application
20120166233
This invention relates generally to communication systems and, more particularly, to communications systems that interface with public utility metering devices (including, e.g., electricity, natural gas and water meters) to provide enhanced utility consumption and cost information to consumers.
Public utility services are well known in which an organization (“utility company”) maintains an infrastructure for a public service and, using that infrastructure, delivers a corresponding service to the public such as, for example, electricity, natural gas or water service. At the end user premises, metering devices measure the user's utility consumption, and the utility company periodically bills the customer according to the consumption information obtained from the meter.
Historically, and in many existing systems (a.k.a., “legacy” systems), the utility company performs manual reading of the meters (e.g., by a human meter reader walking around neighborhoods to read consumer meters, or driving by with a truck and remotely querying consumer meters by a radio connection). Typically, in such systems, consumer meters are checked on a relatively infrequent basis (e.g., monthly or bi-monthly) and the customer is charged a flat rate based on the total utility consumption during the relevant period. More recently, at least in the case of electrical utilities, there is a trend toward next-generation “smart meters” that enable the electric company to monitor consumer consumption data in nearly real-time. An electrical distribution system equipped with smart meters is often referred to as a “smart grid.” One of the advantages of the smart grid is that it enables the electric company to implement time-dependent pricing policies, for example, to charge higher rates during hours of peak energy demand and lower rates at different times of day when there is lower energy demand.
The supply-and-demand coupling operates most efficiently when both the utility provider, e.g., the electric company, and the utility demander, i.e., the end user consumer, are both made aware of consumption and cost data, yet consumers are often not aware, or at least not sufficiently aware of the details of their utility consumption and/or their utility bill. For example in the case of electrical service, consumers may not know what appliances consume what portions of the total bill, how their own energy usage compares to that of other consumers in similar homes and geographic areas, or how to potentially change their overall electrical consumption behavior without making major compromises to comfort and convenience. Accordingly, there is a need to enhance consumer awareness of utility consumption and cost information so that consumers can proactively manage their utility consumption and to more optimally consume utility resources in their homes and businesses. Advantageously, enhanced utility consumption and cost data will be made available to consumers having either legacy meters or next-generation smart meters.
This need is addressed and an advance is made in the art by a user platform (in one example, embodied in a modern telephone set, termed a “Smart Grid Phone” (SGP)) as the means for conveying substantially real-time utility consumption and cost information to the consumer. The SGP in one embodiment has always-on internal CPU processing, connectivity with the Internet, touch-screen display, and voice input/output capabilities, may be advantageously located in a convenient place within the home, and thereby provides an ideal interface for end-users.
The foregoing and other advantages of the invention will become apparent upon reading the following detailed description and upon reference to the drawings in which:
There is growing awareness of the importance of making utility consumption and cost data available to consumers. For example, in the case of electrical energy usage, hobbyist measurement devices have been available on the market that use A/C current transducers coupled to the power wires incoming to homes. These devices have two components—one component typically resides in the utility room and has two current transducers (one per A/C phase) with a low-power radio transmitter that relays its sensor measurement data via RF, and a second component which is a receiver/display located somewhere in the interior of the home. By viewing the receiver/display component, a consumer can see total current electrical consumption in real-time along with some comparison data such as morning, afternoon and evening summaries.
On such prior art system is depicted in
Another exemplary prior art system is depicted in
The system of
Therefore, the SGP provides a conveniently-located, readily-accessible, and easy-to-use interface for the end-user as relates to the smart-grid and energy consumption, as well as serving as the user's IP-based telephone set.
Referring to
As shown, the SGP 400 maintains Internet connectivity at step 5 to an online energy monitoring service 116 (for example and without limitation, Google Power Meter). The SGP delivers real-time utility consumption information to the energy monitoring service at step 5 and in one embodiment, receives near real-time display content and updates corresponding to the utility consumption information at Step 6. The display content and display updates received from the energy monitoring service define externally-produced content.
Further, the SGP maintains internet connectivity to a VoIP telephone service provider 404 and the SGP thereby acts as the user's IP-based telephone set. In addition to providing standard PSTN dial-in/dial-out functionality for the home and optionally acting as a browser client to the web, the SGP can internally process and communicate its real-time power consumption measurements to one or more online energy services, using its programmable application functionality.
Referring to
As shown, the real-time consumption data is simultaneously relayed to the SGP 400 in Step 4 via the Zigbee or similar secured RF link. The SGP's RF receiver could be a USB-based receiver dongle attached to one of its USB ports, but might also be directly built-in to the SGP. In this preferred embodiment, the SGP has access to the end-user's raw electrical energy consumption data. Alternatively or additionally to receiving consumption data via an RF link to the Smart Meter, the SGP may access consumption data via an online connection to the utility's database and infrastructure, depicted as Utility Service 502 in
Similarly to
According to principles of the present invention, the SGP 400, having special software/firmware, always-on internal CPU processing, connectivity with the Internet, touch-screen display, and voice input/output capabilities, and ability to process and communicate real-time power consumption measurements to one or more online energy services, may be implemented to enhance consumer awareness of utility consumption and cost data in a variety of unique and creative ways. For example and without limitation, it is contemplated that the SGP 400 may be implemented as follows:
1. Using the SGP with the Google Power Meter Service
In one embodiment, the SGP can authenticate as a client with the Google Power Meter service, and upload the real-time electrical power measurements, relayed to it via the RF link (
Using a dedicated appliance such as the SGP that automatically updates its one or more views, contrasts with the prior-art PC-based browser access to Google Power Meter, whereby the end-user must manually login using the iGoogle portal and must also then manually and continually refresh by mouse-clicking or double-clicking in order to see up-to-date energy consumption results. The appliance-based SGP acts a true and automatic meter, in contrast to existing PC-based browser displays which require manual operations for refreshing results.
It is contemplated that the SGP may interface with exposed APIs (application programming interfaces) of the Google Power Meter service. In one example, the APIs can be used by the SGP to authenticate and to upload real-time measurement data, relayed to the SGP from utility room via an RF link (
In contrast to the prior-art browser-based display of Google Power Meter, the SGP in one embodiment may connect to the Google Power Meter service to access and download data, so as to compute and present various kinds of customized displays and summaries. Such displays might cycle through different varied presentations of the consumer's energy consumption data. For example and without limitation, first a zoomed-in curve showing usage over the past one hour may be displayed for five seconds, next a zoomed-out curve showing usage over the past 48 hours may be displayed for six seconds, next a bar-graph showing usage over the past week may be displayed for three seconds, next a screen summarizing cumulative total consumption and cost may be displayed for seven seconds, and so on. In the preferred embodiment, the end-user would be able to select and configure the detailed content and data organization relating to how such screens are presented and cycled.
In another example, the SGP may be used to simultaneously access and upload data to other online services. For example, Pachube is yet another online service to which energy data can be uploaded and made available to applications via its APIs. The SGP might cycle through various displays using the upload/download APIs from Pachube and/or other multiple online services, so as to present the user with various perspectives on his/her energy consumption. The SGP might also use its own internal processing, in addition to or instead of online services, to process and present various views of electrical consumption data. There are many possibilities and combinations.
In yet another example, the SGP might also annotate significant energy events on its one or more cycling displays of data, so that end-users become more aware of the details of the consumption. For example, the SGP might implement various algorithms that perform signal processing on the total two-phase measured current versus time waveforms, so as to identify and correlate characteristic step changes and other features of major constituent components of energy consumption. Although there has been algorithm work done in the past relating to Non-Intrusive Load Monitoring (NILM) which seeks to identify which electrical devices are contributing to the total electrical load, it is believed this algorithm work may not be directly applicable here, due to the low sampling rates of typical A/C current transducers on the market. Performing this constituent-component processing within an edge device itself, such as within the SGP telephone set, rather than centrally at the utility company, is believed to be novel. Furthermore, the outputs of existing or new NILM algorithms used as a means of annotating and labeling real-time energy curves has not been previously proposed.
Referring to
In a smart-grid electrical distribution system, the price of electricity per KWh set by the utility company can be a time-dependent function. For example, the utility might adjust the rate based on its own costs which fluctuate in real-time, and/or based on the specific end-user's current or historical consumption, and/or based on total consumption for a population of users, etc. With smart meters, the utility company is able to measure the time-dependent consumption and also has the ability to bill in a time-dependent way. For example, the utility company might bill differently for the 6-7 PM dinner hour time period when many kitchen cooking appliances are being used, than for 9-10 PM time period.
Presumably, end-users would also like to be fully informed of the time-dependent costs they are being assessed. For example, knowing that electricity costs more at one time later today, and less at some other time later today or tomorrow, might impact user behavior. It is contemplated that with the prevalence of smart metering, utility companies will publish their real-time time-dependent costing-data, thereby allowing their customers to remain more fully informed about their purchasing costs.
In yet another example, the SGP might access the real-time costing data from the utility company, provided by the utility company as on online service, to annotate its displays. One example of this is depicted in
Past and future cost data along with consumption usage data might form the basis for tips and recommendations offered by the SGP, optionally operating in conjunction with an online service. For example, the SGP might recommend (either via a text message on its display, or via voice output) recommendations about cost savings, such as if you use your electric dryer from 9-10 PM instead of from 6-7 PM, you will likely save $27 over the next 12 months. There are many possibilities and variations that exploit the SGP's usage, processing, and output of real-time costing data provided by the utility company.
The SGP's touch-screen display might also be used in conjunction with energy curves for improving the overall end-user interaction. In one example, the end-user gesture might be pinching together two fingers while touching the SGP display to show a longer history of consumption, or un-pinching two fingers while touching the display to show a more granular presentation.
In another example, the end-user might also momentarily touch various regions on the SGP's touch-screen to first compute, and then display, energy cost. For example, touching the display somewhere near the 6 PM point might show the total price for some fixed temporal region, such as from 6-7 PM, or from 5:30 PM to 6:30 PM. Or, perhaps the user might touch with two fingers, and then pinch or un-pinch so as to designate the temporal region and the corresponding price. For example, when two fingers are touched to the SGP's touch-screen, then slowly un-pinched near the 6 PM point, the region and calculated cost might change from 5:45-6:15/$2.10 to 5:30-6:30/$2.40, etc. The user might also double-touch the SGP screen so as to switch displays, switch services, etc. There are many possibilities and variations for this optional end-user interaction with the SGP's touch-screen interface.
In addition to the improved touch-screen user interface capabilities, the SGP's built-in audio input/output capabilities could also be used. For example, the SGP might emit a chirp, beep, ring or other alarm sound, thereby alerting the end-user to a significant event such as an unusually high or low daily consumption of electrical energy. Or, the alert sound might be triggered by a message from the electric utility company, advising its consumers to conserve energy on a particularly hot day. In this case, when the end-user acknowledges the message alert, he/she might either view the message as a text display on the SGP's screen, or alternately hear the message as audio content played-out from the SGP's built-in speaker.
The SGP's audio output capabilities might be used in other ways. For example, the SGP might present via audio output various statistics and summaries regarding usage, such as “Your daily summary was approximately fifty one kilowatt hours, which costs six dollars and seven cents. This is five percent below your normal usage, but ten percent above similar homes in your area”. Or, an example audio output from the SGP might be “Here is today's energy-saving tip: lowering the temperature of your hot water heater by five degrees would save you approximately thirteen dollars per month”. Audio announcements might be delivered automatically, such as in the case of an alarm or alert, or only after the end-user opted-in by touching the screen. The SGP might use its internal text-to-speech processing or voice synthesis techniques to compose such messages, or alternately might interoperate with an online service to create the audio announcements.
The SGP's audio input capabilities may also be used in various ways. For example, the user-end might speak to the SGP, thereby commanding it to change its various display options, or causing it to speak back various summaries of energy consumption, etc.
The telephonic capabilities built-in to the SGP might be used in various ways relating to electrical energy consumption and its cost. For example, the end-user might simply touch a click-to-call link, or a push-to-talk link, on the SGP's energy display, and would then be immediately connected to a human agent at the electric utility company, who could then verbally discuss specifics of electrical energy usage, provide tips and insights for better conservation, answer the end-user's questions, etc. Preferably, this simple touch action would also cause a screen-pop on the utility company agent's PC, or on some other type of agent user interface, displaying various views and data summaries of this particular end-user's electrical energy consumption.
The SGP might also dial-out to one or more end-user telephone numbers, such as for example when an alarm or alert condition occurred. For example, if the end-user was remote, or on vacation, and a high, or low, or otherwise abnormal electrical energy usage event occurred, the SGP might telephone call the end-user and inform him/her of this alert condition. The end-user might also be able to dial-in to the SGP to hear various electrical energy statistics and summaries, for example by entering a PIN code, entering DTMF digits or via speech recognition. There are many possibilities and variations.
The SGP might also act as a data server for delivering information related to the energy measurement data it collects and processes from its current sensors. For example, the SGP might serve up web pages suitable for display on the end-user's mobile phone or smartphone. Or, the SGP might send text messages, email summaries, twitter messages and the like, using formats, syntax and conditions that are customizable by the end-user via the SGP's touch screen interface, via voice input commands, or via remote access to the SGP. For example, the SGP might send customized daily or weekly email summaries to the end-user's iPhone or Android, or perhaps only when some unusual activity occurred, etc. There are many possibilities and variations.
Alternatively or additionally to monitoring and displaying the end-user's electricity consumption results, the SGP might also be used to monitor water and gas consumption. In the typical system architecture, a Zigbee-enabled gas meter, and/or Zigbee-enabled water meter, might first relay its data to the smart electric meter, which in turn would backhaul the total set of data back to various electric, water and gas companies. With this system, the water or gas company might also assess time-dependent charges, so as to impact user demand.
In one embodiment, the smart meter would also relay data to the SGP's external or internal Zigbee receiver, so the SGP would have access to the raw data. In another embodiment, the SGP would only access the data via its online internet connections.
Many of the above features and benefits of the SGP described above are applicable to water and gas scenarios. For example, the end-user might see cycling displays of electrical, water and gas usage, might receive tips and specific advice relating to usage and efficiency, might be easily connected to speak a human agent at each utility company, might receive alarms and alerts, etc. For those devices that are controllable, the SGP might also provide touch-screen or voice control. For example, the end-user might be able to lower the internal temperature of a gas-fired hot water heater. There are many other possibilities, variations and extensions of the SGP operating in a multi-utility scenario.
For example, the described embodiments herein refer to a preferred “Smart Grid Phone” (SGP) embodying a modern telephone set as a preferred user platform for enhancing consumer awareness of utility consumption and cost data. However, it will be appreciated that the user platform may be implemented in any number of alternative modalities including, without limitation, laptop computer, desktop computer, personal computer (PC), television or mobile computing device, personal digital assistant (PDA), tablet PC or mobile phone, nominally including a web browser for accessing Internet contents and services. It should be apparent that various exemplary embodiments of the user platform may be implemented in hardware and/or firmware. Furthermore, various exemplary embodiments may be implemented as instructions stored on a machine-readable storage medium, which may be read and executed by at least one processor to perform the operations of the user platform. A machine-readable storage medium may include any mechanism for storing information in a form readable by a machine including, without limitation, read-only-memory (ROM), random-access memory (RAM), magnetic disk storage media, optical storage media, flash-memory devices and similar storage media. The embodiments are also intended to cover computers or programmed to perform the steps of methods described herein.
Further, the described embodiments herein refer to the Google Power Meter service as a preferred online energy monitoring service for receiving display content such as historical electrical energy consumption data. However, it will be appreciated that alternative external services may exist or may be developed in the future for producing historical energy consumption data or other externally-produced content, and the described embodiments may utilize such services alternatively or additionally to the Google Power Meter Service.
The term “externally-produced content,” as used herein, shall refer to data content or updates that are produced externally from the SGP platform. For example and without limitation, the SGP platform 400 may receive externally-produced content from a content provider such as the Google Power Meter energy monitoring service; or from a utility service 502. The externally-produced content may comprise, without limitation, numeric data, graphs, text or any other communication modality suitable for communicating utility consumption and/or cost data.
The term “supplemental content,” as used herein, shall refer to content that is displayed, produced or communicated by the SGP as an enhancement or alternative to externally-produced content; and which is derived in one embodiment by the SGP processing externally-produced content and/or utility consumption information. For example and without limitation, annotated energy events such as shown in
