Apparatus and method for door control

Patent metadata

Field	Value
Publication number	US-11512518-B2
Application number	US-202016741900-A
Country	US
Kind code	B2
Filing date	Jan 14, 2020
Priority date	Jan 14, 2020
Publication date	Nov 29, 2022
Grant date	Nov 29, 2022

Abstract

In example implementations, a method is provided. The method includes determining, by a processor, that a vehicle is approaching a door of a building based on a velocity vector of the vehicle, calculating, by the processor, a time of arrival of the vehicle at the door based on the velocity vector of the vehicle and a distance of the vehicle from the door, and controlling, by the processor, the door to begin opening at a time based on the time of arrival and an amount of time for the door to open such that the door is opened when the vehicle arrives at the door.

First claim

The invention claimed is:

1. A method, comprising:
determining, by a processor, that a vehicle is approaching a door of a building based on a velocity vector of the vehicle, wherein the velocity vector is calculated based on data received from a plurality of sensors located in a fixed location within the building, wherein processor is activated to perform the determining when the vehicle is determined to be within a virtual lane associated with the door;
calculating, by the processor, a time of arrival of the vehicle at the door based on the velocity vector of the vehicle and a distance of the vehicle from the door; and
controlling, by the processor, the door to begin opening at a time based on the time of arrival and an amount of time for the door to open such that the door is opened when the vehicle arrives at the door.

2. The method of claim 1 , wherein the virtual lane is associated with a predefined route.

3. The method of claim 1 , further comprising:
determining, by the processor, that vehicle information associated with the vehicle is authorized to exit through the door before controlling the door to begin opening.

4. The method of claim 3 , wherein the vehicle information is received from a radio frequency (RF) tag reader that reads an RF tag located on the vehicle.

5. The method of claim 1 , wherein the velocity vector comprises a velocity and a direction of the vehicle.

6. The method of claim 1 , wherein the data comprises time of flight measurements using ultra-wide band (UWB) protocol by the plurality of sensors.

7. The method of claim 1 , wherein the velocity vector is calculated based on image data received from the plurality of sensors.

8. A system, comprising:
a door located in a building;
a motor to control operation of the door;
a controller communicatively coupled to the motor to control operation of the motor to open and close the door; and
a plurality of sensors located in a fixed location within the building and communicatively coupled to the controller to collect movement data of a vehicle, wherein the controller is to begin calculating a velocity vector of the vehicle when the vehicle is determined to be within a virtual lane associated with the door, wherein the velocity vector of the vehicle is calculated based on the movement data and the controller is to cause the motor to begin opening the door at a time based on a time of arrival of the vehicle at the door that is calculated from the velocity vector and a distance of the vehicle from the door, and based on an amount of time for the door to open such that the door is opened when the vehicle arrives at the door.

9. The system of claim 8 , further comprising:
a radio frequency (RF) tag reader to read an RF tag located on the vehicle.

10. The system of claim 9 , wherein the RF tag contains vehicle information to determine whether the vehicle is authorized to exit through the door.

11. The system of claim 8 , wherein the plurality of sensors comprises laser sensors that capture the movement information based on time of flight data.

12. The system of claim 8 , wherein the plurality of sensors uses an ultra-wideband (UWB) communications protocol to receive information from a tag on the vehicle to calculate the distance of the vehicle from the door.

13. The system of claim 8 , wherein the plurality of sensors comprises an image capturing device to capture image data of the vehicle, wherein the movement information is calculated based on analysis of the image data.

14. A non-transitory computer readable storage medium encoded with instructions executable by a processor, the non-transitory computer-readable storage medium comprising:
instructions to determine that a vehicle is in a virtual lane associated with a door of a building;
instructions to activate a controller to calculate a velocity vector of the vehicle, wherein the velocity vector is calculated based on data received from a plurality of sensors located in a fixed location within the building;
instructions to determine that the vehicle is approaching the door;
instructions to calculate a time of arrival of the vehicle at the door based on the velocity vector of the vehicle and a distance of the vehicle from the door; and
instructions to control the door to begin opening at a time based on the time of arrival and an amount of time for the door to open such that the door is opened when the vehicle arrives at the door.

15. The non-transitory computer readable storage medium of claim 14 , further comprising:
instructions to receive vehicle information associated with the vehicle from an RF tag reader.

16. The non-transitory computer readable storage medium of claim 15 , further comprising:
instructions to determine that the vehicle is authorized to exit through the door based on the vehicle information.

17. The non-transitory computer readable storage medium of claim 14 , wherein the velocity vector is calculated by a plurality of sensors from time of flight measurements using ultra-wide band (UWB) protocol.

18. The non-transitory computer readable storage medium of claim 14 , wherein the velocity vector is calculated from image data received from a plurality of sensors.

Assignees

• Cornellcookson Llc

Inventors

• Wu Zhizhuo
• Carroll Ryan

Classifications

• G07C9/20

  involving the use of a pass · CPC title

• E06B2009/6818

  using sensors · CPC title

• E05Y2900/11

  for industrial buildings · CPC title

• E05Y2900/132

  Doors · CPC title

• E05F2015/765

  using optical sensors · CPC title