A method of automatically requesting assistance for a patient includes wearing a wireless device with one or more accelerometers on the patient to detect patient motion; determining a fall based on detected motions; and automatically requesting assistance for the patient if needed.
대표청구항▼
1. A method of automatically requesting assistance for a patient, comprising: wearing a wireless device with one or more accelerometers and a magnetometer or other sensors on the patient to detect patient motion, body rotation or height;using outputs of an accelerometer and one or more additional se
1. A method of automatically requesting assistance for a patient, comprising: wearing a wireless device with one or more accelerometers and a magnetometer or other sensors on the patient to detect patient motion, body rotation or height;using outputs of an accelerometer and one or more additional sensors, wherein the accelerometer and sensor are a single pendant, watch, or box to detect a fall, by analyzing changes in height and accelerations associated with changes in height and immediately thereafter determining if the patient is on a floor for a predetermined period;transmitting a request for help over a telephone; andconfirming the fall when a person or a call center contacts the patient to verify the patient status and thereafter automatically requesting assistance for the patient. 2. The method of claim 1, comprising detecting if the patient has fallen based on a plurality of accelerometer signals and indicating the fall if the accelerometer signals indicate that the patient is unable to get up. 3. The method of claim 1, comprising estimating an indoor location of the wireless device based on detection of local wireless signals. 4. The method of claim 1, comprising distinguishing between falls and other types of normal body movement. 5. The method of claim 1, comprising notifying an emergency service for assistance automatically without a user pressing a button to call for help. 6. The method of claim 1, comprising reading outputs of one or more accelerometers in the wireless device to detect the fall and calling for assistance using the wireless device and a telephone at the patient's home. 7. The method of claim 1, comprising detecting a fall, sending an alert to a call center which contacts the patient to confirm if a responder can assist and sending local emergency services if needed. 8. The method of claim 1, comprising confirming the fall using one or more vital sign sensors. 9. The method of claim 1, comprising capturing movement activities and comparing the movement activities to one or more fall patterns and determining if a fall has occurred. 10. The method of claim 1, comprising distinguishing normal activities of life from the fall. 11. The method of claim 1, comprising determining location by looking up a wireless local area network position database. 12. The method of claim 1, wherein the wireless device sends accelerometer patterns to a remote processor to detect falls to conserve battery power. 13. The method of claim 1, wherein patient motions form a sequence of elemental motions, comprising: identifying each elemental motion of a sequence of elemental motions of the accelerometer; andidentifying the activity of the patient, comprising matching the sequence of identified elemental motions with a library of stored sequences of elemental motions, wherein each stored sequence of elemental motions corresponds with an activity. 14. The method of claim 1, comprising identifying each elemental motion by: generating an acceleration signature based on sensed acceleration of the device;matching the acceleration signature with at least one of a plurality of stored acceleration signatures, wherein each stored acceleration signatures corresponds with a type of motion;identifying the type of motion of the device based on the matching of the acceleration signature with the stored acceleration signature. 15. The method of claim 9, further comprising refining identification of the activity, analyzing timing of the identified activity, analyzing at least one identified location of the identified activity, analyzing a rate of change of a location of the patient, or analyzing patterns of a plurality of identified activities. 16. The method of claim 1, further comprising communicating with a call center through two way voice communication and determining at least one of: identifying patient location using a plurality of user-locating technologies including global positioning system (GPS), wireless signal triangulation positioning, and a wireless local area network position database. 17. The method of claim 1, wherein the wireless device is worn on a neck or belt inside or outside the home, further comprising pushing a button to initiate a call for help to a call center or, if a fall is detected, the automatically placing a call to the call center without the patient pushing the button. 18. The method of claim 1, further comprising: determining position based on wireless signal triangulation; andrequesting assistance with the position with either an in-home unit or a mobile telephone if the sensor signals indicate that the patient is unable to independently recover from the fall. 19. The method of claim 1, further comprising determining a predetermined time between the fall and when the patient gets up before having a call center call to confirm if assistance is needed. 20. The method of claim 19, further comprising determining a severity of the fall based on the predetermined time or based on one or more accelerometers' output magnitudes. 21. The method of claim 1, further comprising determining the fall based on acceleration pattern characteristics of a fall. 22. A method to provide personal emergency response for a patient, comprising: wearing a wireless device with at least one or more accelerometers and a magnetometer or other sensors on the patient to detect patient motion, wherein the accelerometer and sensor are a single pendant, watch, or box;using outputs of the accelerometer and magnetometer or other sensor for analyzing rotations or changes in height and accelerations and determining if the patient is on a floor for a predetermined period;determining a fall based on detected motions;waiting for a predetermined period to detect if the patient can recover from the fall and automatically requesting assistance using a telephone if the patient is unable to recover from the fall; andrequesting assistance from a person or a call center for the patient if the patient pushes a button requesting assistance; andconfirming the fall when the person or call center contacts the patient. 23. The method of claim 22, comprising capturing location information. 24. The method of claim 22, further comprising capturing location information from one or more wireless base station location data. 25. The method of claim 22, further comprising capturing location information using a positioning system and wireless base station location data.
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