PIN verification

1. A monitoring system comprising one or more computers and one or more storage devices on which are stored instructions that are operable, when executed by the one or more computers, to cause the one or more computers to perform operations comprising:

receive biometric data of a visitor to a property captured by sensors configured to monitor the property;

determine, from the biometric data, a biometric identifier for the visitor to the property;

determine a confidence score that reflects a likelihood that the visitor is authorized based on the biometric identifier;

maintain a threshold confidence score for the monitoring system;

adjust the threshold confidence score using sensor data indicating a current status of a plurality of statuses related to the monitoring system from one or more sensors configured to capture the sensor data of the monitoring system of the property or a time at which the visitor is attempting to visit the property, wherein a type of adjustment of the threshold confidence score depends in part on the current status of the plurality of statuses or the time at which the visitor is attempting to visit the property and the type of adjustment of the threshold confidence score would be different given a different status from the plurality of statuses or a different time at which the visitor is attempting to visit the property;

compare the confidence score that reflects the likelihood that the visitor is authorized to the adjusted threshold confidence score;

using a result of the comparison of the confidence score that reflects the likelihood that the visitor is authorized to the adjusted threshold confidence score, determine that the confidence score satisfies the adjusted threshold confidence score; and

based on the determination that the likelihood that the confidence score satisfies the adjusted threshold confidence score, allow the visitor to access the property.

2. The monitoring system of claim 1 , wherein adjusting the threshold confidence score using the sensor data indicating the current status of the plurality of statuses related to the monitoring system or the time at which the visitor is attempting to visit the property comprises:

determining, using the sensor data, a status of the plurality of statuses related to the monitoring system; and

adjusting the threshold confidence score based on the status related to the monitoring system.

3. The monitoring system of claim 2 ,

wherein determining the status of the plurality of statuses related to the monitoring system comprises determining, using the sensor data, that the status of the monitoring system is armed stay; and

wherein adjusting the threshold confidence score using the sensor data indicating the current status related to the monitoring system comprises decreasing the threshold confidence score based on the determination that the monitoring system is armed stay.

4. The monitoring system of claim 2 ,

wherein determining the status of the plurality of statuses related to the monitoring system comprises determining, using the sensor data, that the status of the monitoring system is armed away; and

wherein adjusting the threshold confidence score using the sensor data indicating the current status related to the monitoring system comprises increasing the threshold confidence score based on the determination that the monitoring system is armed away.

5. The monitoring system of claim 2 ,

wherein determining the status of the plurality of statuses related to the monitoring system comprises detecting, using the sensor data, motion at the property and identifying a match between an image of the visitor and one or more stored images; and

wherein adjusting the threshold confidence score using the sensor data indicating the current status related to the monitoring system comprises decreasing the threshold confidence score based on the detected motion and the identified match between the image of the visitor and the one or more stored images.

6. The monitoring system of claim 2 ,

wherein determining the status of the plurality of statuses related to the monitoring system comprises determining that the visitor is accompanied by an animal; and

wherein adjusting the threshold confidence score using sensor data indicating the current status related to the monitoring system comprises decreasing the threshold confidence score based on the determination that the visitor is accompanied by the animal.

7. The monitoring system of claim 2 ,

wherein determining, using the sensor data, the status of the plurality of statuses related to the monitoring system comprises determining location data associated with one or more residents of the property; and

wherein adjusting the threshold confidence score using sensor data indicating the current status related to the monitoring system comprises adjusting the threshold confidence score using the location data associated with the one or more residents of the property.

8. The monitoring system of claim 2 ,

wherein determining, using the sensor data, the status of the plurality of statuses related to the monitoring system comprises determining, using the sensor data, that a number of persons accompanying the visitor exceeds a visitor allowance number; and

wherein adjusting the threshold confidence score using the sensor data indicating the current status related to the monitoring system comprises increasing the threshold confidence score based on the determination that the number of persons accompanying the visitor exceeds the visitor allowance number.

9. The monitoring system of claim 1 , wherein adjusting the threshold confidence score using sensor data indicating the current status of the plurality of statuses related to the monitoring system or the time at which the visitor is attempting to visit the property comprises:

determining a time at which the visitor is attempting to visit the property; and

adjusting the threshold confidence score based on the time at which the visitor is attempting to visit the property.

10. The monitoring system of claim 9 ,

wherein determining the time at which the visitor is attempting to visit the property comprises determining a current time; and

wherein adjusting the threshold confidence score using sensor data indicating the time at which the visitor is attempting to visit the property comprises decreasing the threshold confidence score based on a determination that the current time corresponds to a time at which the visitor is expected to visit the property.

11. A method comprising:

receiving, by a monitoring system configured to monitor a property, biometric data of a visitor to the property captured by sensors configured to monitor the property;

determining, by the monitoring system and from the biometric data, a biometric identifier for the visitor to the property;

determining, by the monitoring system, a confidence score that reflects a likelihood that the visitor is authorized based on the biometric identifier;

maintaining a threshold confidence score for the monitoring system;

adjusting, by the monitoring system, the threshold confidence score using sensor data indicating a current status of a plurality of statuses related to the monitoring system from one or more sensors configured to capture the sensor data of the monitoring system of the property or a time at which the visitor is attempting to visit the property, wherein a type of adjustment of the threshold confidence score depends in part on the current status of the plurality of statuses or the time at which the visitor is attempting to visit the property and the type of adjustment of the threshold confidence score would be different given a different status from the plurality of statuses or a different time at which the visitor is attempting to visit the property;

comparing, by the monitoring system, the confidence score that reflects the likelihood that the visitor is authorized to the adjusted threshold confidence score;

using a result of the comparison of the confidence score that reflects the likelihood that the visitor is authorized to the adjusted threshold confidence score, determining, by the monitoring system, that the confidence score satisfies the adjusted threshold confidence score; and

based on the determination that the likelihood that the confidence score satisfies the adjusted threshold confidence score, allowing, by the monitoring system, the visitor to access the property.

12. The method of claim 11 , wherein adjusting the threshold confidence score using the sensor data indicating the current status of the plurality of statuses related to the monitoring system or the time at which the visitor is attempting to visit the property comprises:

determining, using the sensor data, a status of the plurality of statuses related to the monitoring system; and

adjusting the threshold confidence score based on the status related to the monitoring system.

13. The method of claim 12 ,

wherein determining the status of the plurality of statuses related to the monitoring system comprises determining, using the sensor data, that the status of the monitoring system is armed stay; and

wherein adjusting the threshold confidence score using the sensor data indicating the current status related to the monitoring system comprises decreasing the threshold confidence score based on the determination that the monitoring system is armed stay.

14. The method of claim 12 ,

wherein determining the status of the plurality of statuses related to the monitoring system comprises determining, using the sensor data, that the status of the monitoring system is armed away; and

wherein adjusting the threshold confidence score using the sensor data indicating the current status related to the monitoring system comprises increasing the threshold confidence score based on the determination that the monitoring system is armed away.

15. The method of claim 12 ,

wherein determining the status of the plurality of statuses related to the monitoring system comprises detecting, using the sensor data, motion at the property and identifying a match between an image of the visitor and one or more stored images; and

wherein adjusting the threshold confidence score using the sensor data indicating the current status related to the monitoring system comprises decreasing the threshold confidence score based on the detected motion and the identified match between the image of the visitor and the one or more stored images.

16. The method of claim 12 ,

wherein determining the status of the plurality of statuses related to the monitoring system comprises determining that the visitor is accompanied by an animal; and

wherein adjusting the threshold confidence score using sensor data indicating the current status related to the monitoring system comprises decreasing the threshold confidence score based on the determination that the visitor is accompanied by the animal.

17. The method of claim 12 ,

wherein determining, using the sensor data, the status of the plurality of statuses related to the monitoring system comprises determining location data associated with one or more residents of the property; and

wherein adjusting the threshold confidence score using sensor data indicating the current status related to the monitoring system comprises adjusting the threshold confidence score using the location data associated with the one or more residents of the property.

18. The method of claim 12 ,

wherein determining, using the sensor data, the status of the plurality of statuses related to the monitoring system comprises determining, using the sensor data, that a number of persons accompanying the visitor exceeds a visitor allowance number; and

wherein adjusting the threshold confidence score using the sensor data indicating the current status related to the monitoring system comprises increasing the threshold confidence score based on the determination that the number of persons accompanying the visitor exceeds the visitor allowance number.

19. The method of claim 11 , wherein adjusting the threshold confidence score using sensor data indicating the current status of the plurality of statuses related to the monitoring system or the time at which the visitor is attempting to visit the property comprises:

determining a time at which the visitor is attempting to visit the property; and

adjusting the threshold confidence score based on the time at which the visitor is attempting to visit the property.

20. The method of claim 19 ,

wherein determining the time at which the visitor is attempting to visit the property comprises determining a current time; and

wherein adjusting the threshold confidence score using sensor data indicating the time at which the visitor is attempting to visit the property comprises decreasing the threshold confidence score based on a determination that the current time corresponds to a time at which the visitor is expected to visit the property.