Orientation method, device, and system
First Claim
1. An orientation method comprising:
- determining a reference direction for orientation;
when a first device rotates around an obstruction, receiving a wireless signal sent by a second device, and obtaining a link quality parameter value according to the received wireless signal;
determining a position having greatest shadow fading of the first device according to the obtained link quality parameter value, and using a pointing direction of the position having the greatest shadow fading of the first device as a first pointing direction;
determining a direction in which the second device is located by measuring (a) an included angle θ
1 between the reference direction and the first pointing direction and (b) an included angle θ
2 between the reference direction and a second pointing direction, wherein the second pointing direction is a pointing direction of the first device;
using a clockwise rotation direction as a forward direction, obtaining an included angle θ
between the first and second pointing directions after subtracting the included angle θ
2 from the included angle θ
1; and
using the second pointing direction as an initial location, determining θ
plus 180°
as the direction in which the second device is located.
1 Assignment
0 Petitions
Accused Products
Abstract
A method includes: determining a reference direction for orientation; when a first device rotates around an obstruction, receiving a wireless signal sent by a second device, and obtaining a link quality parameter value according to the received wireless signal; determining a position having greatest shadow fading of the first device according to the obtained link quality parameter value, and using a pointing direction of the position having greatest shadow fading of the first device as a first pointing direction; and determining, according to an included angle θ1 between the reference direction and the first pointing direction and an included angle θ2 between the reference direction and a second pointing direction, a direction in which the second device is located, where the second pointing direction is a pointing direction of the first device.
-
Citations
20 Claims
-
1. An orientation method comprising:
-
determining a reference direction for orientation; when a first device rotates around an obstruction, receiving a wireless signal sent by a second device, and obtaining a link quality parameter value according to the received wireless signal; determining a position having greatest shadow fading of the first device according to the obtained link quality parameter value, and using a pointing direction of the position having the greatest shadow fading of the first device as a first pointing direction; determining a direction in which the second device is located by measuring (a) an included angle θ
1 between the reference direction and the first pointing direction and (b) an included angle θ
2 between the reference direction and a second pointing direction, wherein the second pointing direction is a pointing direction of the first device;using a clockwise rotation direction as a forward direction, obtaining an included angle θ
between the first and second pointing directions after subtracting the included angle θ
2 from the included angle θ
1; andusing the second pointing direction as an initial location, determining θ
plus 180°
as the direction in which the second device is located. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
-
-
10. A first device comprising an input apparatus, an output apparatus, a memory, a processor, and a bus, wherein the input apparatus, the output apparatus, the memory, and the processor are connected to the bus, wherein
the input apparatus is configured to receive input data or an input instruction that is input from outside into the first device; -
the output apparatus is configured to output data of the first device; and the memory is configured to store a program, and the processor is configured to invoke the program to execute the following operations; determining a reference direction for orientation; when the first device rotates around an obstruction, receiving a wireless signal sent by a second device, and obtaining a link quality parameter value; determining a position having greatest shadow fading of the first device according to the link quality parameter value, and using a pointing direction of the position having the greatest shadow fading of the first device as a first pointing direction; determining a direction in which the second device is located by measuring (a) an included angle θ
1 between the reference direction and the first pointing direction and (b) an included angle θ
2 between the reference direction and a second pointing direction, wherein the second pointing direction is a pointing direction of the first device;using a clockwise rotation direction as a forward direction, obtaining an included angle θ
between the first and second pointing directions after subtracting the included angle θ
2 from the included angle θ
1; andusing the second pointing direction as an initial location, determining θ
plus 180°
as the direction in which the second device is located. - View Dependent Claims (11, 12, 13, 14)
-
-
15. A non-transitory computer readable medium comprising computer readable instructions that, when executed by a computer processor, cause the computer processor to implement the following operations:
-
determining a reference direction for orientation; when a first device rotates around an obstruction, receiving a wireless signal sent by a second device, and obtaining a link quality parameter value according to the received wireless signal; determining a position having greatest shadow fading of the first device according to the obtained link quality parameter value, and using a pointing direction of the position having greatest shadow fading of the first device as a first pointing direction; determining a direction in which the second device is located by measuring (a) an included angle θ
1 between the reference direction and the first pointing direction and (b) an included angle θ
2 between the reference direction and a second pointing direction, wherein the second pointing direction is a pointing direction of the first device;using a clockwise rotation direction as a forward direction, obtaining an included angle θ
between the first and second pointing directions after subtracting the included angle θ
2 from the included angle θ
1; andusing the second pointing direction as an initial location, determining θ
plus 180°
as the direction in which the second device is located. - View Dependent Claims (16, 17, 18, 19, 20)
-
Specification