Monitoring movement of an entity in an environment
First Claim
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1. A method of monitoring movement of an entity in an environment having at least one point of access, the method comprising:
- using a monitoring unit having a processor in communication with at least one sensor disposed to detect activity associated in a predetermined environment to;
identify an event indicating opening of a point of access to said environment;
determine if the environment was occupied by more than one entity prior to the event; and
send a notification to a terminal dependent upon if the environment was occupied by more than one entity prior to the event, wherein determining if the environment was occupied by more than one entity prior to the event includes;
calculating a probability that the environment is occupied by more than one entity; and
comparing the probability with a predetermined threshold probability.
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Abstract
Whether a person suffering dementia has left their flat unaccompanied can be determined by identifying an event indicating opening of the front door of the flat, determining whether the flat was occupied by more than one person prior to the door opening, determining whether there is inactivity in the flat following the door opening and sending a notification to a communications terminal of a caretaker if the flat was occupied by only one person and if there is inactivity in the flat.
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Citations
23 Claims
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1. A method of monitoring movement of an entity in an environment having at least one point of access, the method comprising:
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using a monitoring unit having a processor in communication with at least one sensor disposed to detect activity associated in a predetermined environment to;
identify an event indicating opening of a point of access to said environment;
determine if the environment was occupied by more than one entity prior to the event; andsend a notification to a terminal dependent upon if the environment was occupied by more than one entity prior to the event, wherein determining if the environment was occupied by more than one entity prior to the event includes; calculating a probability that the environment is occupied by more than one entity; and
comparing the probability with a predetermined threshold probability. - View Dependent Claims (2, 3, 8, 9, 10, 11, 12, 13, 14, 22)
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4. A method of monitoring movement of an entity in an environment having at least one point of access, the method comprising:
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using a monitoring unit having a processor in communication with at least one sensor disposed to detect activity associated in a predetermined environment to;
identify an event indicating opening of a point of access to said environment;
determine if the environment was occupied by more than one entity prior to the event; and
send a notification to a terminal dependent upon if the environment was occupied by more than one entity prior to the event,wherein determining if the environment was occupied by more than one entity prior to the event includes;
providing a frequency of a first type of event occurring in the environment prior to the event;
providing a first set of parameters for describing a frequency distribution of the first type of event occurring in the environment associated with movement of only one entity in the environment;
providing a second set of parameters for describing a frequency distribution of the first type of event occurring in the environment associated with movement of more than one entity in the environment;
calculating a probability, P(EISO), of the first type of event occurring with said frequency given only one entity in the environment;
calculating a probability, P(EIMO), of the first type of event occurring with said frequency given more than one entity in the environment;
providing a probability, P(MO), of there being more than entity in the environment; and
calculating a probability, P(MOIE), of there being more than one entity in the environment given the first type of event occurring using;- View Dependent Claims (5, 6, 7)
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7. A method according to claim 6, wherein the second type of event is:
- detection of movement from one area to another, non-adjoining area in the environment;
detection of movement in the environment;
or detection of movement from one area to another.
- detection of movement from one area to another, non-adjoining area in the environment;
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15. A system for monitoring movement of an entity in an environment having at least one point of access, the system comprising:
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means for identifying an event indicating opening of a point of access; means for determining if the environment was occupied by more than one entity prior to the event;
means for sending a notification to a terminal dependent upon if the environment was occupied by more than one entity prior to the event;means for calculating a probability that the environment is occupied by more than one entity; and
means for comparing the probability with a predetermined threshold probability.- View Dependent Claims (16, 17, 18, 23)
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19. A system for monitoring movement of an entity in an environment having at least one point of access, the system comprising a server which includes:
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an interface for receiving notification of an event indicating opening of a point of access; and a processor configured to determine if the environment was occupied by more than one entity prior to the event and to send a notification to a terminal dependent upon if the environment was occupied by more than one entity prior to the event, wherein the processor is further configured to provide a probability that the environment is occupied by more than one entity and to compare the probability with a predetermined threshold probability. - View Dependent Claims (20, 21)
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Specification