Automated emergency detection and response

• US 8,063,764 B1
• Filed: 05/22/2009
• Issued: 11/22/2011
• Est. Priority Date: 05/27/2008
• Status: Expired due to Fees

• Current Assignee: University Health Network
• Original Assignee: Toronto Rehabilitation Institute
• Inventors: Giesbrecht, David, Mihailidis, Alex, Taati, Babak, Young, Vicky, Hoey, Jesse, Lee, Tracy, Boger, Jennifer, Hamill, Melinda, Lobos, John Paul
• Primary Examiner(s): CROSLAND, DONNIE L
• Application Number:
  US12/471,213
• Time in Patent Office: 914 Days
• Field of Search: 340/517, 340/506, 340/531, 340/539.11, 340/539.12, 340/539.17, 340/539.18, 340/540
• US Class Current: 340/517
• CPC Class Codes: G06V 20/52 Surveillance or monitoring of activities, e.g. for recognising suspicious objects recognising microscopic objects G06V20/69
• CPC Class Codes: G08B 21/043 detecting an emergency event, e.g. a fall
• CPC Class Codes: G08B 21/0492 Sensor dual technology, i.e. two or more technologies collaborate to extract unsafe condition, e.g. video tracking and RFID tracking

Abstract

A system for detecting and responding to emergency events includes a plurality of local emergency detection and response units positioned in a local area. Each unit includes one or more local sensing agents and a local detection manager. Each local sensing agent is operable to detect emergency events by a change in a given emergency factor in the local area and to convey data representative of the change in the emergency factor to a detection manager which is operable to receive the data and to assign a value to the emergency factor according to the data. A central location controller unit and/or the local emergency detection and response unit are operable for classifying the assigned value of the emergency function to form an assigned value classification and for initiating the local emergency event response agent to implement a response protocol according to the assigned value classification.

Claims

1. A system for detecting and responding to emergency events occurring in a predetermined local area, comprising a plurality of local emergency detection and response units to be positioned in the local area, each local emergency detection and response unit including one or more local sensing agents and a local detection manager, the local detection manager including a local processor, each local sensing agent being operable to detect a change in a given emergency factor in the local area and to convey data representative of the change in the emergency factor, the detection manager being operable to receive the data and to assign a value to the emergency factor according to the data, and a local interface agent for issuing, on a data path, one or more event status signals including the assigned value for the emergency factor, a central location controller unit including a central processor and a central interface agent in communication with the local interface agent on the data path to receive the event status messages therefrom, each local emergency detection and response unit including a local emergency event response agent for responding to at least one person in or near the local area, the central location controller unit and/or the local emergency detection and response unit being operable for classifying the assigned value of the emergency function to form an assigned value classification and initiating the local emergency event response agent to implement a response protocol according to the assigned value classification, the response protocol including dispatching a message to the person and recording a response therefrom, the central processor including a ranking agent for ranking status signals being received from more than one local emergency detection and response unit in the same local area.

2. A system as defined in claim 1, the ranking agent being operable to rank each of the emergency detection and response units according to one or more ranking criteria, the central processor being operable to select one of the emergency detection and response units according to the ranking as an active local emergency detection and response unit to initiate the emergency event response protocol.

3. A system as defined in claim 2, the central processor being operable to receive status signals over regular, or periodic time intervals and to change the selection of the active emergency detection and response unit according to changes in the status signals.

4. A system as defined in claim 2, the at least one emergency factor being selected from a plurality of video variables and/or thresholds, a plurality of audio variables and/or thresholds, and a plurality of environmental variables and/or thresholds.

5. A system as defined in claim 4, the environmental variables and/or thresholds, including smoke concentration, carbon monoxide concentration, oxygen concentration, and/or environmental pollutant concentration.

6. A system as defined in claim 2, the ranking agent being operable to access and compare a plurality of emergency factors received from the plurality of reporting local emergency detection and response units.

7. A system as defined in claim 6, the emergency factor including a video image, the variable including size of object being tracked.

8. A system as defined in claim 6, the emergency factor including an audio signal, the variable including amplitude and type of the audio signal.

9. A system as defined in claim 6, the ranking agent assigning, as active, the active local emergency detection and response unit possessing the highest ranking for a given emergency factor.

10. A system as defined in claim 1, the local processor or the central processor including a voice processing agent for issuing voice signals to the person or receiving and interpreting voice signals from the person.

11. A system as defined in claim 1, one of the sensing functions including a fixed or steerable digital camera.

12. A system as defined in claim 1, one of the sensing functions including a microphone.

13. A system as defined in claim 1, one of the sensing functions including an environmental detector.

14. A system for detecting and responding to emergency events occurring in a predetermined local area, comprising a plurality of local emergency detection and response units positioned in the local area, each local emergency detection and response unit including one or more local sensing agents and a local detection manager, the local detection manager including a local processor, each local sensing agent being operable to detect emergency events by a change in a given emergency factor in the local area and to convey data representative of the change in the emergency factor, the detection manager being operable to receive the data and to assign a value to the emergency factor according to the data, and a local interface agent for issuing, on data path, one or more event status messages including the assigned value for the emergency factor, a central location controller unit including a central processor and a central interface agent in communication with the local interface agent on the data path to receive the event status messages therefrom, each local emergency detection and response unit including a local emergency event response agent for responding to at least one person in or near the predetermined area, the central location controller unit and/or the local emergency detection and response unit being operable for classifying the assigned value of the emergency function to form an assigned value classification and for initiating the local emergency event response agent to implement a response protocol according to the assigned value classification.

15. A system as defined in claim 14, the central processor being operable to receive regular or periodic messages from each emergency detection and response unit after detecting activity in the local area, the central processor recording the activity to track a subject between multiple emergency detection and response units as the subject moves through the local area.

16. A system for detecting and responding to emergency events occurring in a predetermined local area, comprising a plurality of local emergency detection and response units to be positioned in the local area, each local emergency detection and response unit including one or more local sensing agents and a local detection manager, the local detection manager including a local processor, each local sensing agent being operable to detect a change in a given emergency factor in the local area and to convey data representative of the change in the emergency factor, the detection manager being operable to receive the data and to assign a value to the emergency factor according to the data, and a local interface agent for issuing, on a data path, one or more event status signals including the assigned value for the emergency factor, each local emergency detection and response unit including a local emergency event response agent for responding to at least one person in or near the local area, the local emergency detection and response unit being operable for classifying the assigned value of the emergency function to form an assigned value classification and initiating the local emergency event response agent to implement a response protocol according to the assigned value classification, the response protocol including dispatching a message to the person and recording a response therefrom, one or more of the local detection and response units responsive to data received on the data path for ranking status signals received from more than one local emergency detection and response unit in the same local area, one or more of the local emergency detection and response units being operable to select one of the emergency detection and response units according to the ranking as an active local emergency detection and response unit to initiate the emergency event response protocol.

17. A system as defined in claim 16, wherein the local emergency detection and response units are each operable for exchanging the assigned values from one another to form an assigned value group.

18. A system as defined in claim 17, wherein one or more of the local emergency detection and response units are operable to select an active emergency detection and response unit according to a ranking of individual values in the value group.

19. A method for detecting and responding to emergency events occurring in a predetermined local area, comprising:

i. providing a local emergency detection and response unit in the local area,

ii. providing the local emergency detection and response unit with one or more local sensing agents and a local detection manager with a local processor,

iii. configuring the local sensing agents to detect an emergency event by a change in a corresponding emergency factor in the local area, and to generate data representative of the change in the emergency factor, arranging the detection manager to assign a value to the emergency factor according to the first data,

iv. providing a local interface agent for issuing, on a data path, one or more event status signals including the assigned value for the emergency factor,

v. providing a local emergency event response agent for responding to at least one person in or near the local area, and

vi. configuring the local interface agent to receive an initiation signal for initiating the local emergency event response agent to implement a response protocol according to an assigned value.

20. A method for detecting and responding to emergency events occurring in a predetermined local area, comprising:

i. providing a plurality of local emergency detection and response sites in the local area;

ii. providing each local emergency detection and response site with one or more local sensing agents;

iii. configuring the sensing agents to sense a change in a predetermined emergency factor in the local area;

iv. providing a detection manager at each site to receive, from each sensing local sensing agent, data representative of the change in the emergency factor,

v. arranging the detection manager to assign a value to the emergency factor according to the data;

vi. dispatching, over a data path, one or more event status messages including the assigned value for the emergency factor;

vii. providing a central location controller to receive, in a first operative phase, the event status messages over the data path; and

viii. configuring the central location controller, in a second operative phase, to;

1. classify the assigned value of the emergency factor to form an assigned value classification;

2. rank the status messages according to one or more ranking criteria,

3. select one of the emergency detection and response sites according to the ranking as an active local emergency detection and response site to initiate an emergency event response protocol; and

4. instruct the selected active local emergency detection and response site to initiate the emergency event response protocol.

21. A method as defined in claim 20, further comprising configuring the central location controller to:

i. operate in the first operative phase receive the event status messages;

ii. operate in the second operative phase concurrently with the first operative phase to;

1. select a new active local emergency detection and response site according to changes in the assigned values of the emergency factors; and

2. instruct the new active local emergency detection and response site to initiate the emergency event response protocol.