Intelligent door lock system

Patent metadata

Field	Value
Publication number	US-9322194-B2
Application number	US-201414205608-A
Country	US
Kind code	B2
Filing date	Mar 12, 2014
Priority date	Mar 15, 2013
Publication date	Apr 26, 2016
Grant date	Apr 26, 2016

Abstract

An intelligent door lock system is provided with a position sensing device configured to be coupled to a drive shaft of a lock device. The position sensing device senses position of the drive shaft and assists in locking and unlocking a lock of a lock device. An engine is provided with a memory coupled to the positioning sensing device. A circuit is coupled to the engine and an energy source is coupled to the circuit. A device converts energy into mechanical energy and is coupled to the circuit, positioning sensing device and the drive shaft. The device that converts energy is coupled to the energy source to receive energy from the energy source.

First claim

The invention claimed is:

1. An intelligent door lock system at a dwelling with a door, comprising:
a position sensing device coupled to a drive shaft of a lock device, the position sensing device sensing position of the drive shaft and configured to assist in locking and unlocking a lock of a lock device;
an engine with a memory coupled to the positioning sensing device and the drive shaft, wherein the memory stored with states of the door that are used with the position sensing device to determine if the door is locked or unlocked, the engine configured to provide energy to the intelligent door lock system for locking and unlocking of the door;
an energy source configured to provide electrical energy;
a device coupled to the energy source and the engine, the device configured to convert electrical energy received from the energy source into mechanical energy; and
the intelligent door lock system is in communication with a user's mobile device that communicates with the position sensing device,
wherein when the user's mobile device is at an exterior of the dwelling and in a close proximity to the dwelling, the drive shaft is caused to rotate by the engine and the energy source to provide an unlocking of the door when the door is in a locked state.

2. The system of claim 1 , wherein the intelligent door lock system is installed to an existing lock system already mounted at a door.

3. The system of claim 1 , wherein the intelligent door lock system is installed at a door without a pre-existing lock device.

4. The system of claim 1 , further comprising:
a wireless communication device coupled to the circuit.

5. The system of claim 1 , wherein the position sensing device is an accelerometer.

6. The system of claim 5 , wherein the accelerometer determines position of the drive shaft and at least one of, door knocking, picking of the lock, break-in and unauthorized entry, door open and closing motion.

7. The system of claim 5 , wherein the accelerometer does not require additional power than that required for determining the at least one of, door knocking, picking of the lock, break-in and unauthorized entry, door open and closing motion.

8. The system of claim 5 , wherein the accelerometer provides at least one of, a number of times the door is closed or opened, a degree of door physical swing, of the door, and distance of door swing.

9. The system of claim 8 , wherein the accelerometer in operation provides a determination as to whether or not someone successfully swung the door.

10. The system of claim 1 , wherein the positioning sensing device in operation is coupled to the device that converts energy that provides for moving a bolt of the lock device to at least one of a locked or unlocked positioned.

11. The system of claim 1 , wherein the lock can be manually locked and unlocked.

12. The system of claim 1 , wherein the position sensing device is selected from at least one of, an accelerometer, optical encoder, magnetic encoder, mechanical encoder, Hall Effect sensor, potentiometers, contacts with ticks and an optical camera encoders.

13. The system of claim 1 , wherein the lock device can be locked or unlocked wirelessly remotely.

14. The system of claim 1 , wherein the lock device can be locked or unlocked using a mobile device.

15. The system of claim 14 , wherein the mobile device is a third party mobile device.

16. The system of claim 1 , wherein the lock device can be locked or unlocked from a back-end coupled to the intelligent door lock system.

17. The system of claim 1 , wherein the circuit is coupled to at least one of, the processor, the power source, a communication device for a mobile device, the positioning sensing device, a speaker, a temperature sensor, a battery voltage sensor, a current sensor that determines how hard the device that converts energy is working, a protection circuit to protect the device that converts energy from overheating and an LED array.

18. The system of claim 1 , further comprising:
wing latches coupled to a chassis of the intelligent door lock system.

19. The system of claim 18 , wherein the wing latches attach to a mounting plate of the door.

20. The system of claim 1 , further comprising:
an intelligent door lock system back-end in wireless communication with the intelligent door lock system.

21. The system of claim 1 , wherein the position sensing device is positioned on the drive shaft.

22. The system of claim 1 , wherein a sub 1° resolution in position sensing is provided with the intelligent door lock system.

Assignees

• August Home Inc

Inventors

• Cheng Shih Yu Thomas
• Johnson Jason
• Kim Christopher
• Aranda Joseph

Classifications

• G07C2209/62

  Comprising means for indicating the status of the lock · CPC title

• E05B47/026 Primary

  the bolt moving rectilinearly · CPC title

• Y10T292/1021

  Motor · CPC title

• G07C9/00571 Primary

  operated by interacting with a central unit · CPC title

• E05B2047/0072

  Operation · CPC title