Abstract: Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for finding lost objects. In some implementations, a request for a location of an item is obtained. Current video data from one or more cameras is obtained. It is determined that the item is not shown in the current video data. Sensor data corresponding to historical video data is obtained. Events that likely occurred with the item and corresponding likelihoods for each of the events are determined. A likely location for the item is determined based on the likelihoods determined for the events. An indication of the likely location of the item is provided.

Abstract: A monitoring system includes a doorbell unit that includes a camera and a display and that is configured to receive a request to access the property. The monitoring system includes a monitor control unit that is configured to determine an authentication protocol for determining whether to grant the visitor access to the property. The monitor control unit generates a first image and transmits authentication data to a computing device. The monitor control unit provides the first image and instructions to output the first image on the display of the doorbell unit. The monitor control unit receives a second image captured by the camera of the doorbell unit. The monitor control unit determines whether the second image includes a representation of data that is based on processing the first image in combination with the authentication data. The monitor control unit grants or denies the visitor access to the property.

Abstract: Systems and techniques for solar energy management are described. A described system includes circuitry to determine a solar power generation value based on a power output of a solar power generator configured to supply electricity to a plurality of devices associated with a property; circuitry to determine a power consumption value of the plurality of devices; and a controller configured to determine a power status based on the solar power generation value and the power consumption value. The controller can be configured to selectively enable additional power consumption among the plurality of devices to an extent of the solar power generation value based on the power status indicating a power surplus state. The controller can be configured to selectively reduce power consumption among the plurality of devices based on the power status indicating a power deficit state.

Abstract: Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for identifying, at a monitoring system, a location of a device panel, the device panel being configured to communicate with a position module of the monitoring system; obtaining, by the position module, location information for a plurality of anchor devices, each anchor device of the plurality of anchor devices being located within a predefined area of a property; determining, by the position module, a respective location of each anchor device within the predefined area based on analysis of the location information for the plurality of anchor devices; and determining, by the position module, a location for a sensor in the predefined area based on the respective location of at least one anchor device.

Abstract: Methods, systems, and apparatus, including computer programs encoded on a non-transitory computer storage medium, for receiving user-defined routes, each user-defined route including a tripwire of multiple tripwires and a direction, where each user-defined route includes an action of multiple actions executed by a sub-system of a home monitoring system, detecting a first signal at a first tripwire including a first direction, determining a set of user-defined routes including the first tripwire and the first direction, detecting a second signal at a second tripwire including a second direction, determining a particular user-defined route of the set of user-defined routes including the first tripwire and the first direction and the second tripwire and the second direction, determining an action executed by a sub-system of the home monitoring system for the particular user-defined route traversed by a user, and triggering execution of the action based on the second signal at the second tripwire.

Abstract: Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for group identification and monitoring. The methods, systems, and apparatus include actions of determining, using one or more first frames of a video sequence, that two people each of whom is depicted in at least one of the first frames satisfy a grouping criteria that indicates that the two people should be grouped for video analysis, determining, using one or more second frames of the video sequence at least some of which were captured after the one or more first frames and which depict at least one of the two people, that the two people satisfy a degrouping criteria that indicates that the two people should not be grouped for video analysis, determining that a physical distance between the two people violates a distance criteria, and providing an alert that the distance criteria is violated.

Abstract: Method and apparatus for operating home appliances, the method includes identifying a home appliance in a field view of a camera of an augmented reality (AR) device; generating, based on the home appliance that was identified, a control interface to overlay on a screen of the AR device or to present within an augmented view of a user that carries the AR device; detecting a selection by the user of control options on the control interface; and triggering the home appliance to perform an operation based on the selection.

Abstract: Methods, systems, and apparatus, including computer programs encoded on computer storage mediums, for a smartlock device that can be integrated in a door at a property. The smartlock device includes a locking mechanism configured to lock the door and to unlock the door. The device includes a radio device and a sensor that determines a first temperature of the smartlock device and a second temperature of a room that is accessible via the door. The radio device is operable to: i) receive parameter signals from the sensor indicating each of the first and second temperatures; ii) transmit data that includes the first and second temperatures to a monitoring system; and iii) receive a command to cause the locking mechanism to unlock the door based on information from the monitoring system. The information includes a determined routing of occupants at the property and is presented on a display of the device.

Abstract: Techniques are described for handling duress input. For example, techniques are described for handling duress input provided to a mobile application that controls a monitoring system located at a fixed property.

Abstract: Techniques are described for provisioning Wi-Fi network connectivity for a wireless device without requiring a user to provide network credentials to allow the wireless device to establish a network connection. In some implementations, a method is performed by a computing device to provision a wireless network connection. A MAC address associated with a property is obtained. A temporary network credential for the wireless device is determined based on the MAC Address of the wireless device. The temporary network credential permits the wireless device to connect to a temporary network. The temporary network credential for the wireless device is available over the temporary network. A determination that the wireless device has connected to the temporary network using the temporary network credential for the wireless device is made. An instruction is transmitted to the wireless device over the temporary network in response to the determination.

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: A method includes, receiving a biometric identifier from a visitor to the property, determining an arrival time of the visitor based on receiving the biometric identifier, comparing the arrival time of the visitor to an expected arrival time of an expected visitor, based on comparing the arrival time of the visitor to an expected arrival time, transmitting the biometric identifier and data identifying the expected visitor, receiving, by the monitoring system and from the external server, (i) data indicating that the biometric identifier corresponds to the expected visitor and (ii) data indicating that an electronic device of the expected visitor is located at the property, and based on (i) the data indicating that the biometric identifier corresponds to the expected visitor and (ii) the data indicating that the electronic device of the expected visitor is located at the property, granting, by the monitoring system, the visitor access to the property.

Abstract: A security monitoring system may implement a method for surveilling an outdoor area using a drone. The method involves receiving an input to initiate a pre-surveillance operation. The input indicates a type of pre-surveillance operation to be performed in the outdoor area. The drone may be configured according to the input and may then perform the pre-surveillance operation to obtain data indicative of environmental features in the outdoor area. A flight trajectory path for the drone is generated based on the data indicative of the environmental features in the outdoor area. The flight trajectory path includes a path for the drone to move within the outdoor area. The drone then performs a detailed surveillance of the outdoor area according to the flight trajectory path. A graphical representation of the outdoor area is generated based on data obtained from performing the surveillance of the outdoor area.

Abstract: Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for automating bulk location-based actions in response to disaster events. A system obtains data defining zones related to different geographic locations and configures a set of preferences for each zone. One of the preferences is a command for responding to an event. The system detects a disaster event and determines that a location affected by the event is related to a zone defined at the system. The system obtains sensor data generated by a sensor in the zone that is connected to a monitoring system for the zone. The system generates an alert based on the sensor data and the command and provides the alert to a client device of an entity that manages properties in the zone. The alert provides an assessment of how the disaster event affects items at properties in the zone.

Abstract: Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for advanced monitoring of an HVAC system. In some implementations, a voltage measurement across at least two interface terminals of a thermostat that controls an HVAC system of a property is obtained. The voltage measurements are analyzed. A likely power cycling activity of a component of the HVAC system is determined based on analyzing the voltage measurements. Whether the HVAC system is operating properly is determined based on the likely power cycling activity of the component of the HVAC system. Data indicating whether the HVAC system is operating properly is generated and outputted based on determining whether the HVAC system is operating properly.

Abstract: A security monitoring system may implement a building space mapping process using a drone. The process involves generating a floor plan of the building space by performing pre-mapping and detailed mapping protocols, and allowing the user to specify particular areas of interest that may restrict or enhance the drone's ability to move through the building space. The drone may generate and travel along a trajectory path based on the floor plan and information collected during the mapping protocols.

Abstract: Methods, systems, and apparatus, including computer programs encoded on computer-storage media, for lighting adaptive navigation. In some implementations, map data associated with a property is received. Sensor data is obtained. Based on the map data and the sensor data, a lighting scenario is determined. Based on the lighting scenario, a modification to at least one of the lighting scenario, to a planned navigation path for the robotic device, to settings for a sensor of the robotic device, to a position for a sensor of the robotic device, or to a position of the robotic device is determined. An action is performed by based on the one or more modifications.

Abstract: Techniques, devices, and systems are described for determining and adjusting a perspective angle of a drone sensor such as a camera. A described drone system can include an aerial drone; a ground station; an actuator to adjust the drone camera's field of view; and a controller. The controller can be configured to receive an event associated with one or more spatial coordinates or zones, determine the camera's current perspective angle, determine a target perspective angle based on the event such that the target perspective angle will cause the camera to capture imagery from the one or more spatial coordinates or zones, and cause the actuator to adjust the camera from the current perspective angle to the target perspective angle.

Abstract: Methods, systems, and apparatus, including computer programs encoded on a storage device, for using a drone to pre-surveil a portion of a property. In one aspect, a system may include a monitoring unit. The monitoring unit may include a network interface, a processor, and a storage device that includes instructions to cause the processor to perform operations. The operations may include obtaining data that is indicative of one or more acts of an occupant of the property, applying the obtained data that is indicative of one or more acts of the occupant of the property to a pre-surveillance rule, determining that the pre-surveillance rule is satisfied, determining a drone navigation path that is associated with the pre-surveillance rule, transmitting, to a drone, an instruction to perform pre-surveillance of the portion of the one or more properties using the drone navigation path.

Abstract: Methods and systems for monitoring multiple sensors over a distributed sensor network to enhance various monitoring operations. In some implementations, an identification of a sensor located in a property and a token that enables the mobile device to obtain data from the sensor are each received by a mobile device from a server. The mobile device is then determined to be within a communication range with the server that is indicated by the identification from the server. In response, data is obtained from the sensor by the mobile device using the token received from the server.