Detecting an event from signals in a listening area

• US 10,409,843 B1
• Filed: 05/28/2019
• Issued: 09/10/2019
• Est. Priority Date: 04/27/2018
• Status: Expired due to Fees

• Current Assignee: Banjo, Inc.
• Original Assignee: Banjo, Inc.
• Inventors: Mehta, Rish, Patton, Damien, Gratton, Christian, Leung, K W Justin, Gowda, Varun
• Primary Examiner(s): Pham, Thierry L
• Application Number:
  US16/423,551
• Time in Patent Office: 105 Days
• Field of Search: 704 9
• CPC Class Codes: G06F 16/29 Geographical information databases
• CPC Class Codes: G06F 16/3329 Natural language query formulation or dialogue systems
• CPC Class Codes: G06F 16/381 using identifiers, e.g. barcodes, RFIDs for URLs G06F16/9554
• CPC Class Codes: G06F 16/5846 using extracted text
• CPC Class Codes: G06F 16/9537 Spatial or temporal dependent retrieval, e.g. spatiotemporal queries
• CPC Class Codes: G06Q 10/06 Resources, workflows, human or project management; Enterprise or organisation planning; Enterprise or organisation modelling
• CPC Class Codes: H04L 67/12 specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks
• CPC Class Codes: H04L 67/52 specially adapted for the location of the user terminal
• CPC Class Codes: H04L 67/568 Storing data temporarily at an intermediate stage, e.g. caching
• CPC Class Codes: H04W 4/021 Services related to particular areas, e.g. point of interest [POI] services, venue services or geofences
• CPC Class Codes: H04W 4/90 Services for handling of emergency or hazardous situations, e.g. earthquake and tsunami warning systems [ETWS]
• CPC Class Codes: H04W 76/50 for emergency connections

Abstract

The present invention extends to methods, systems, and computer program products for detecting an event. A listening area is monitored based on detecting a potential event from a normalized signal, based on characteristics of a normalized signal, or based on a signal pattern anomaly. A geo cell database is queried with search terms derived from one or more normalized signals. A geo cell subset is returned from the geo cell database. The listening area is formed from the geo cells included in the geo cell subset and monitored for additional signals. An event is detected and/or validated (or rejected) based on the additional normalized signal.

Claims

1. A method comprising:

receiving a raw signal including source data from a signal source;

applying a transdimensionality transform to the raw signal lowering the dimensionality of the source data and re-encoding the raw signal into a Time, Location, Context (TLC) normalized signal of lower dimensionality, wherein context of the Time, Location, Context (TLC) normalized signal indicates an event type;

determining that characteristics of the Time, Location, Context (TLC) normalized signal satisfy first detection model thresholds;

detecting a potential event and identifying the Time, Location, Context (TLC) normalized signal as a trigger signal;

applying natural language processing (NLP) to text associated with the trigger signal deriving search terms;

querying a geo cell database with the search terms;

receiving a geo cell that corresponds to the search terms;

monitoring a geo cell listening area formed from the geo cell for signals related to the trigger signal;

detecting another Time, Location, Context (TLC) normalized signal in the geo cell listening area as a related signal based at least in part on characteristics of the other Time, Location, Context (TLC) normalized signal satisfying the second detection model thresholds, the other Time, Location, Context (TLC) normalized signal including other normalized data of the lower dimensionality;

obtaining a distance between dimensions of the trigger signal and corresponding dimensions of the related signal; and

validating the potential event as an actual event of the event type based on characteristics of the trigger signal, characteristics of the related signal, and the obtained distance.

2. The method of claim 1, wherein obtaining a distance between dimensions of the trigger signal and corresponding dimensions of the related signal comprise comparing the dimensions of the trigger signal to the corresponding dimensions of the related signal.

3. The method of claim 1, wherein validating the potential event as an actual event comprises validating the potential event as an actual event based on one or more of:

a time dimension, a location dimension, or a context dimension included in the other Time, Location, Context (TLC) normalized signal.

4. The method of claim 1, further comprising deriving the text from audio content included in the trigger signal.

5. The method of claim 4, wherein deriving the text comprises applying audio processing to the audio content.

6. The method of claim 1, further comprising deriving the text from image content included in the trigger signal.

7. The method of claim 6, wherein deriving the text comprises applying image processing to the image content.

8. The method of claim 1, further comprising deriving the text by applying natural language processing (NLP) to content of the trigger signal.

9. The method of claim 1, further comprising determining the size of the geo cell listening area based on a location distance threshold associated with the event type.

10. The method of claim 1, further comprising:

expanding the geo cell listening area into an expanded geo cell listening area in response to monitoring the related signal;

detecting a further Time, Location, Context (TLC) normalized signal in the expanded geo cell listening area; and

wherein validating the potential event as an actual event further comprises validating the potential event as the actual event based on characteristics of the further Time, Location, Context (TLC) normalized signal.

11. A system comprising:

a processor;

system memory coupled to the processor and storing instructions configured to cause the processor to;

receive a raw signal including source data from a signal source;

apply a transdimensionality transform to the raw signal lowering the dimensionality of the source data and re-encoding the raw signal into a Time, Location, Context (TLC) normalized signal of lower dimensionality, wherein context of the Time, Location, Context (TLC) normalized signal indicates an event type;

determine that characteristics of the Time, Location, Context (TLC) normalized signal satisfy first detection model thresholds;

detect a potential event and identifying the Time, Location, Context (TLC) normalized signal as a trigger signal;

apply natural language processing (NLP) to text associated with the trigger signal deriving search terms;

query a geo cell database with the search terms;

receive a geo cell that corresponds to the search terms;

monitor a geo cell listening area formed from the geo cell for signals related to the trigger signal;

detect another Time, Location, Context (TLC) normalized signal in the geo cell listening area as a related signal based at least in part on characteristics of the other Time, Location, Context (TLC) normalized signal satisfying the second detection model thresholds, the other Time, Location, Context (TLC) normalized signal including other normalized data of the lower dimensionality;

obtain a distance between dimensions of the trigger signal and corresponding dimensions of the related signal; and

validate the potential event as an actual event of the event type based on characteristics of the trigger signal, characteristics of the related signal, and the obtained distance.

12. The system of claim 11, wherein instructions configured to obtain a distance between dimensions of the trigger signal and corresponding dimensions of the related signal comprise instructions configured to compare the dimensions of the trigger signal to the corresponding dimensions of the related signal.

13. The system of claim 11, wherein instructions configured to validate the potential event as an actual event comprise instructions configured to validate the potential event as an actual event based on one or more of:

a time dimension, a location dimension, or a context dimension included in the other Time, Location, Context (TLC) normalized signal.

14. The system of claim 11, further comprising instructions configured to derive the text from audio content included in the trigger signal.

15. The system of claim 14, wherein instructions configured to derive the text comprise instructions configured to apply audio processing to the audio content.

16. The system of claim 11, further comprising instructions configured to derive the text from image content included in the trigger signal.

17. The system of claim 16, wherein instructions configured to derive the text comprise instructions configured to apply image processing to the image content.

18. The system of claim 11, further comprising instructions configured to derive the text by applying natural language processing (NLP) to content of the trigger signal.

19. The system of claim 11, further comprising instructions configured to determining the size of the geo cell listening area based on a location distance threshold associated with the event type.

20. The system of claim 11, further comprising instructions configured to:

expand the geo cell listening area into an expanded geo cell listening area in response to monitoring the related signal;

detect a further Time, Location, Context (TLC) normalized signal in the expanded geo cell listening area; and

wherein instructions configured to validate the potential event as an actual event comprise instructions configured to validate the potential event as the actual event based on characteristics of the further Time, Location, Context (TLC) normalized signal.