Method, apparatus, and terminal for obtaining route
AssigneeHuawei Technologies Co., Ltd.
InventorGuoliang Li
Life of this patent
Estimating the term…
Abstract
A method, apparatus, and terminal for obtaining a route are provided, including techniques and related apparatus for: obtaining, by a terminal, a first moment at which a signal in the terminal disappears and first location information of the terminal at the first moment, and performing dead reckoning starting from the first moment; obtaining, by the terminal, a second moment at which a user sends a distress signal and second location information of the terminal at the second moment, and ending the dead reckoning, to obtain a first dead reckoning curve; and determining, by the terminal, a track of a traveled route based on the first moment, the second moment, the second location information, the first dead reckoning curve, and each moment between the first moment and the second moment.
Claims20
A method for obtaining a route, comprising:
- detecting, by an electronic device, a signal strength;
- obtaining, by the electronic device, a third moment when the signal strength is greater than or equal to a first threshold and less than a second threshold at least M consecutive times;
- recording, by the electronic device, a sensor parameter without performing dead reckoning;
- continuously detecting, by an electronic device, the signal strength;
- obtaining, by the electronic device, a first moment and a first location of the electronic device at the first moment when the signal strength is less than the first threshold at least N consecutive times;
- performing, by the electronic device, dead reckoning starting from the first moment;
- obtaining, by the electronic device, a second moment at which the electronic device receiving a distress signal and a second location of the electronic device at the second moment;
- obtaining, by the electronic device, a first dead reckoning curve from the first moment to the second moment;
- determining, by the electronic device, a first track of a traveled route based on the first moment, the second moment, the second location information, and the first dead reckoning curve;
- and
- navigating, by the electronic device, from the second location to the first location based on the first track of a traveled route.
An electronic device, comprising:
- at least one processor;
- and
- a memory coupled to the at least one processor and configured to store programming instructions that, when executed by the at least one processor, cause the electronic device to:
- detect a signal strength;
- obtain a third moment when the signal strength is greater than or equal to a first threshold and less than a second threshold at least M consecutive times;
- record a sensor parameter without performing dead reckoning;
- continuously detect the signal strength;
- obtain a first moment and a first location of the electronic device at the first moment when the signal strength is less than the first threshold at least N consecutive times;
- perform dead reckoning starting from the first moment;
- obtain a second moment at which the electronic device receiving a distress signal and a second location of the electronic device at the second moment;
- obtain a first dead reckoning curve from the first moment to the second moment;
- determine a first track of a traveled route based on the first moment, the second moment, the second location information, and the first dead reckoning curve;
- and
- navigate from the second location to the first location based on the first track of a traveled route.
A non-transitory computer readable medium configured to store instructions that, when executed by an apparatus, cause the apparatus to:
- detect a signal strength;
- obtain a third moment when the signal strength is greater than or equal to a first threshold and less than a second threshold at least M consecutive times;
- record a sensor parameter without performing dead reckoning;
- continuously detect the signal strength;
- obtain a first moment and a first location of an electronic device at the first moment when the signal strength is less than the first threshold at least N consecutive times;
- perform dead reckoning starting from the first moment;
- obtain a second moment at which the electronic device receiving a distress signal and a second location of the electronic device at the second moment;
- obtain a first dead reckoning curve from the first moment to the second moment;
- determine a first track of a traveled route based on the first moment, the second moment, the second location information, the first dead reckoning curve;
- and
- navigate from the second location to the first location based on the first track of a traveled route.
Dependencies are inferred from the claim text.