Method and apparatus for determining location of device using multiple antenna switching
A technology for determining devices and antennas, applied to services based on location information, suitable for antennas and antennas on movable objects, and can solve problems such as vehicle misoperation, difficulty in measuring RSSI values, and large errors in distance measurement
Active Publication Date: 2021-05-25
LG INNOTEK CO LTD
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Problems solved by technology
However, this scheme can be implemented simply and used in many applications, but in the case of complex indoor environments with many obstacles, the distance measurement may contain large errors
[0008]
The RSSI value measured in an outdoor environment with guaranteed line of sight (LoS) is not much different from the ideal RSSI value, but there is the following problem: In an indoor environment (such as inside a building or an underground parking lot), due to various error reasons, such as Obstacles, walls, pillars, movement of people and other radio signals make it difficult to accurately measure RSSI values
[0009]
When the reliability of the measured RSSI value is reduced and the position of the device in the vehicle is incorrectly determined, the vehicle may malfunction
[0010]
For example, when the driver carrying the device does not actually enter the vehicle, the vehicle may erroneously receive an RSSI value from the device and may be controlled to start
Method used
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[0053] Reference will now be made in detail to embodiments of the present disclosure, examples of which are illustrated in the accompanying drawings. The suffixes "module" and "unit" used to describe elements herein are used for convenience of description, and thus may be used interchangeably, and do not have any distinguishable meaning or function.
[0054] In the description of example embodiments, it will be understood that when an element is referred to as being “on” or “under” another element, it can be directly on the other element or intervening elements may be present. Also, when an element is referred to as being 'on' or 'under' another element, this may include meaning based on an upward or downward direction of one element.
[0055] figure 1 is a diagram for explaining various conventional methods of entering a vehicle and controlling its start.
[0056] refer to figure 1 Reference numeral 101, in the most conventional method of entering a vehicle and controlli...
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The present invention relates to a method and an apparatus for determining a location of a device using multiple antenna switching. The method for determining the location of the device using multiple antenna switching according to one embodiment of the present invention may comprise: a first determination step of determining whether a device enters a target proximity zone or a target zone on the basis of a received signal strength indicator (RSSI) value received through a second antenna having a first coverage; a step of connecting a third antenna through antenna switching if it is determined that the device has entered the target proximity zone or the target zone in the first determining step; a second determination step of determining whether the device enters the target zone on the basis of a RSSI value received through the third antenna having a second coverage; and a step of confirming that the device has entered the target zone if it is determined that the device has entered the target zone in the second determination step.
Description
technical field [0001] Embodiments relate to methods of location determination, and more particularly to methods and apparatus for determining the location of an apparatus based on reception in a vehicle smart fob (keyfob) system including multiple antennas with different coverage areas. Signal Strength Indication (RSSI) data to actively perform multi-antenna switching, switching between multiple antennas to more accurately determine the location of devices in close proximity to the vehicle. Background technique [0002] Recently, with the rapid development of information and communication technology, a society based on ubiquitous information and communication technology has been formed. [0003] In order to connect information and communication devices at any place and any time, it is necessary to install sensors in all social facilities, each sensor containing a computer chip with a communication function. [0004] In particular, recently, various location determination t...
Claims
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IPC IPC(8): B60R25/24B60R25/10B60R25/01H04W4/02H04W4/021H04W4/80H04B17/318H04W88/02H01Q1/32
CPCH04B17/318B60R2325/205B60R25/245B60R2325/101B60R25/10B60R25/01H04W4/025H04W4/021H04W4/80H04W88/02H01Q1/325
Inventor 刘昌勋
Owner LG INNOTEK CO LTD