Abstract: An access management and reporting system includes a keysafe that is located outside of a building and a communication system that is located within the building. The communication system is configured to perform, over a short-range wireless communication protocol, two-way communication with a communication module of the keysafe. The system also includes a server that is located remote from the building and the keysafe. The server is configured to perform, over a long-range communication protocol, two-way communication with the communication system located within the building, is configured to manage access to the keysafe, and is configured to handle reporting related to access of the keysafe.

Abstract: Methods and systems, including computer programs encoded on a computer storage medium, are disclosed for simultaneous playback of continuous video recordings from multiple recording devices. A system obtains respective video data generated by multiple recording devices. Each video data includes multiple image frames. For each recording device: based on a time value, the system identifies events captured in the video data generated by the recording device. Based on an input variable corresponding to the events, the system: i) identifies an event stream that coincides with occurrence of a particular event captured in the video data; ii) determines a control value for segmenting image frames of the event stream; and iii) based on the control value, generates a video segment in response to isolating image frames of the event stream coinciding with the particular event. A graphical interface is generated that concurrently outputs each video segment for each recording device.

Abstract: Methods, systems, and apparatus, including computer programs encoded on computer-storage media, for receiving a request to deploy an aerial drone to assist an emergency vehicle from a first location to a second location; determining a route to be traversed by the emergency vehicle from the first location to the second location based on the request; and deploying the aerial drone to traverse the route in advance of the emergency vehicle.

Abstract: Methods, systems, and apparatus, including computer programs encoded on a storage device, for triggering an alarm during a sensor jamming attack. In one aspect, a monitoring system sensor unit is disclosed that includes a sensor, a communication unit configured to communicate with a monitoring system using a range of frequencies, and a jamming detection unit. The jamming detection unit may include a processor and a computer storage media storing instructions that, when executed by the processor, cause the processor to perform operations. The operations include detecting a sensor jamming event, selecting a different form of communication other than the range of radio frequencies for the communication unit to communicate with the monitoring system, and providing, to the communication unit, an instruction to communicate with the monitoring system using the form of communication, wherein the communication unit may communicate, to the monitoring system using the form of communication, the sensor data.

Abstract: In some implementations, geolocation polling can include actions of receiving a location update from a user device of a user, determining an earliest time of arrival of the user to a home, determining, based on the earliest time of arrival, a time interval for a next location update, and providing instructions to the user device of the time interval for a next location update.

Abstract: A circuit is described for powering a chime that outputs audio in response to detection of an entity by a video doorbell. The circuit includes a power source for generating a first signal. A first switch is coupled to the power source. The first switch is configured to provide, in response to the first signal, a first direct-current (DC) voltage signal during a first operating mode where the video doorbell receives an input that triggers actuation of the chime in response to detection of the entity. A second switch is coupled to the power source and the first switch. The second switch is configured to provide, in response to the first signal, a second DC voltage signal during a second operating mode where the chime outputs the audio in response to the input that triggers actuation of the chime in response to detection of the entity.

Abstract: Methods, systems, and apparatus, including computer programs encoded on computer-storage media, for visual authentication. In some implementations, a method may include obtaining images of a person at a property; detecting a discontinuity in an appearance of the person in the images of the person at the property; determining that the discontinuity does not correspond to a known occlusion; and providing an indication of a potential spoofing attack.

Abstract: A monitoring system is configured to monitor a property. The monitoring system includes a camera, a sensor, and a monitor control unit. The monitor control unit is configured to receive image data and sensor data. The monitor control unit is configured to determine that the image data includes a representation of a person. The monitor control unit is configured to determine an orientation of a representation of a head of the person. The monitor control unit is configured to determine that the representation of the head of the person likely includes a representation of a face of the person. The monitor control unit is configured to determine that the face of the person is likely concealed. The monitor control unit is configured to determine a malicious intent score that reflects a likelihood that the person has a malicious intent. The monitor control unit is configured to perform an action.

Abstract: Methods, systems, and apparatus, including computer programs encoded on a storage device, for using a drone to test monitoring system sensors. In one aspect, the drone perform operations that include navigating from a first location of a property towards a second location of the property, detecting a sensor that is installed at the property, interrupting, by the drone, navigation through the property from the first location of the property towards the second location of the property to initiate a test of the detected sensor and (ii) determining a sensor test type for the detected sensor, administering a sensor test to the detected sensor, wherein the sensor test is based on the determined sensor test type, evaluating results of the administered test, storing data describing the results of the administered test, and continuing navigation through the property towards the second location of the property or towards another location of the property.

Abstract: Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, are described for implementing an unmanned aerial vehicle or drone with ducted fans. The drone includes a housing having a first surface and multiple ducts that each extend from the first surface to a second surface of the housing. The first surface is substantially flat. A respective fan assembly is installed in each of the ducts. The drone includes an internal cavity at a location intermediate two respective ducts and circuitry positioned in the internal cavity. The circuitry is operable to generate control signals used to operate the respective fan assemblies.

Abstract: A monitoring system that is configured to monitor a property is disclosed. The monitoring system includes a sensor that is configured to generate sensor data that indicates an attribute of the property; a floor sensor that is configured to generate floor sensor data that indicates an amount of pressure applied to a portion of a floor of the property; and a monitor control unit. The monitor control unit is configured to receive, from the sensor, the sensor data; receive, from the floor sensor, the floor sensor data; analyze the sensor data and the floor sensor data; and based on analyzing the sensor data and the floor sensor data, perform a monitoring system action.

Abstract: A method for granting guest access to a control device includes detecting, by a monitoring control unit, a new connection of a guest device to a network, transmitting, by the monitoring control unit and to an authorized device, a request to grant access to the guest device to control a monitoring system, in response to the request, receiving, by the monitoring control unit, approval to grant access to the guest device to control the monitoring system, and in response to the approval, transmitting, by the monitoring control unit and to the guest device, (i) data that allows the guest device to access a web service and (ii) a temporary authentication token.

Abstract: Techniques are described for energy scoring of a monitored property and users of the monitored property. A system provides users with information related to the efficiency of the monitored property and aggregates data over multiple monitored properties. The system computes and outputs a score for a monitored property that reflects efficiency of the property and/or the users of the property. The system may track how that score changes through time, and how it relates to neighboring properties. The score may be expressed as both a number and a percentile.

Abstract: Systems and techniques are described for tracking guard tours. In some implementations, the techniques include the actions of receiving data indicating an initiation of a guard tour at the property and by a user, where the guard tour defines a path that includes one or more checkpoints with which the user is instructed to interact. The actions further include analyzing the sensor data. The actions further include determining a location of the user conducting the guard tour at the property. The actions further include based on the location of the user and the path of the guard tour, determining that the user is not following the path of the guard tour. The actions further include based on determining that the user is not following the path of the guard tour, providing, for output, data indicating that the user is not following the path of the guard tour.

Abstract: A smart bar lock that includes a pole with a length that corresponds to a length of an area that a sliding portion of a sliding door slides along, a motorized hinge coupled to an end of the pole, where the motorized hinge is configured to rotate to the pole by the end of the pole, and a processor. The processor is configured to perform operations of determining to lock the sliding door, moving the pole from a vertical position into a horizontal position with the motorized hinge, determining to unlock the sliding door while leaving the sliding door closed, and moving the pole into the vertical position with the motorized hinge.

Abstract: A monitoring system that is configured to monitor a property is disclosed. In one aspect, the monitoring system includes one or more sensors that are located throughout the property and that are configured to generate sensor data. The monitoring system further includes a drone that is configured to move throughout the property and generate additional sensor data. The monitoring system further includes a drone dock that is configured to receive the drone, wherein the drone is configured to continue generating the additional sensor data while the drone dock is receiving the drone. The monitoring system further includes a monitor control unit that is configured to receive the sensor data and the additional sensor data, analyze the sensor data and the additional sensor data, determine a status of the property, and provide, for output, data indicating the status of the property.

Abstract: Techniques are described for enabling a drone device to use a dynamic multi-dimensional spatial representation of an indoor property environment to improve autonomous navigation. In some implementations, an instruction to perform an action at a particular location of a property is received by a drone device. A spatial representation of the property that identifies a dynamic object is obtained by the drone device. The status of the dynamic object impacts an ability of the drone device to navigate near the dynamic object. Sensor data collected by one or more sensors of a monitoring system of the property and that indicates a present status of the dynamic object is obtained by the drone device. A path to the particular location is determined by the drone device. The path to the particular location is finally navigated by the drone device.

Abstract: Methods, systems, and apparatus, including computer programs, for a monitoring system that is configured to hail a car from a ride-sharing service. The method comprises determining, based on sensor data from one or more sensors at the property, that a person located at the property is preparing to leave the property, based on historical sensor data, an estimated time that the person will depart the property, determining, based on the estimated time that the person will depart the property, whether a suitable vehicle from a ride-sharing service will be within a predetermined vicinity of the property within a predetermined amount of time of the estimated time that the person will depart the property, receiving data indicating that the person is leaving the property and based on receiving the data indicating that the person is leaving the property, notifying the person that the suitable vehicle is available pick the person up.

Abstract: A power connection for a smart lock device including a strike plate that is mounted to a door frame, the strike plate having one or more spring contacts in a recessed portion of the strike plate, a back portion of the strike plate that is connected to a power source, wherein the one or more spring contacts in the recessed portion of the strike plate are connected to the power source via an electrical wiring, and a smart lock device that is mounted to a door, the smart lock device including a deadbolt that is configured to extend from a side portion of the door, where the one or more spring contacts in the recessed portion of the strike plate are configured to align with one or more conductive segments of the deadbolt.

Abstract: Methods, systems, and apparatus, including computer programs encoded on a storage device, for enabling drone activity in a property monitored by a property monitoring system without triggering a false alarm. In one aspect, the method includes actions of obtaining a location of the drone, identifying a first sensor installed at the property that is within a predetermined distance of the drone, detecting first sensor data generated by the first sensor that is within a predetermined distance of the drone, wherein the first sensor data includes data that is indicative of an event, determining whether a second sensor that is mounted to the drone is generating second sensor data that corroborates the event indicated by the first sensor data, and disregarding, by the property monitoring system, the first sensor data in determining whether to trigger an alarm.