Abstract: Methods, systems, and apparatus, including computer programs encoded on computer storage media, for fetching and guarding delivered packages using robots. One of the methods includes: determining a characteristic of a package at a first location; determining a risk score for the package at the first location; determining, using the risk score and the characteristic of the package, to perform an action for the package; in response to determining to perform the action for the package, assigning a robot to perform the action; and deploying the robot to perform the action.

Abstract: Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, are described for implementing a smart security fastener. The smart security fastener includes a body configured to be installed at a property; and a head that is supported by the body. The head has circuitry that includes: a micro-processor that generates control signals; and a radio device that is coupled to the micro-processor. The radio device is operable to: i) transmit data to a property monitoring system based on the control signals, where the data indicates an installation status of the smart security fastener; and ii) receive a command from the property monitoring system that indicates authorization to uninstall the smart security fastener. The circuitry also includes a power source that powers each of the micro-processor and the radio device.

Abstract: Methods, systems, and apparatus, including computer programs encoded on computer storage media, for object detection. One of the methods includes determining, using first sensor data, a detection result on whether to trigger an event alerting a presence of an object in a target area by executing one or more models; determining, using second sensor data, a ground truth for the event that indicates whether an object is present in the target area; determining a difference value by comparing the detection result and the ground truth; adjusting at least one parameter of the one or more models in response to determining that the difference value does not satisfy the one or more threshold criteria; and determining a new detection result on whether to trigger a second event by executing the one or more models with adjusted parameters using new first sensor data.

Abstract: Methods, systems, and apparatus, including computer programs encoded on computer storage media, for consolidation of alerts using a similarity criterion. One of the methods includes: receiving, from a sensor at a property for which a first action in a sequence of actions was detected by a second sensor at the property, data that identifies a second action at the property; determining whether the second action satisfies a similarity criterion for an action in the sequence of actions that define an event at the property; and in response to determining that the second action satisfies the similarity criterion for the action in the sequence of actions that define the event at the property, performing an event operation for the event at the property.

Abstract: Methods, systems, and apparatus, including computer programs encoded on computer-storage media, for emphasizing a portion of audio data. In some implementations, a method may include determining that a first person is wearing a hearing aid, determining, from images captured by a camera, that a second person is speaking to the first person, determining an audio stream for an environment in which the first person is located, determining whether more than one sound stream is encoded in the audio stream, based on determining that more than one sound stream is encoded in audio data, identifying a portion of captured sounds that corresponds to the second person speaking to the first person, and providing, to the hearing aid, audio data that increases a volume of the portion of captured sounds relative to other portions of the captured sounds.

Abstract: Systems and techniques are described for using thermal imaging to configure and/or augment temperature regulation operations within a property. In some implementations, a computing device obtains a thermal image of a region of a property. The thermal image identifies at least a surface within the region. A surface temperature of the surface is determined. An ambient temperature for the region is determined based at least on the surface temperature. The one or more temperature controls for the region are adjusted based at least on the ambient temperature.

Abstract: Methods, systems, and apparatus, including computer programs encoded on computer-storage media, for generating rules for a monitoring system. In some implementations, a method includes presenting a virtual model of a monitoring system of a property; obtaining action data from a computer generated avatar in the virtual model; generating a security rule for the monitoring system using the action data from the computer generated avatar in the virtual model; and providing, to the monitoring system, the security rule to cause the monitoring system to generate, using the security rule and sensor data from the property received by the monitoring system, a security alert.

Abstract: Methods, systems, and apparatus, including computer programs encoded on computer-storage media, for generating a placement of a camera. In some implementations, maintaining monitoring information of a property; generating a virtual model of a property; determining an initial placement location for a virtual camera in the virtual model; obtaining image data generated in the virtual model from the virtual camera placed at the initial placement location; analyzing the image data; determining, using the analysis of the image data, whether to identify an updated placement location; and providing the placement location for a physical camera at the property to a device using a result of the determination whether to identify the updated placement location.

Abstract: Methods, systems, and apparatus, including computer programs encoded on computer storage media, for reducing a likelihood that a doorbell might be used. One of the methods includes determining that a visitor arrived at a premises; determining that the visitor used a computing device at a first time; determining that a user device of a person of the premises received a message at a second time; determining that the first time and the second time both satisfy a timing criteria; and in response to determining that the first time and the second time both satisfy the timing criteria, sending, to the user device, a notification that indicates that the visitor arrived at the premises.

Abstract: Methods, systems, and apparatus for video analytics evaluation are disclosed. A method includes: identifying a video to display a result of an evaluation of video analysis; identifying a particular time in the video when a video analysis determination does not match a ground truth determination for the video; displaying an image from the particular time in the video; and displaying an indication that the video analysis determination does not match the ground truth determination for the video. Displaying the image from the particular time in the video can include generating a graphical user interface for presentation on a display of a computing device. The indication that the video analysis determination does not match the ground truth determination for the video can include a user-selectable icon. In response to a user selecting the user-selectable icon, the method can include displaying video analysis results for the particular time in the video.

Abstract: Methods, systems, and apparatus, including computer programs encoded on computer-storage media, for managing alerts based on predicted user activity. In some implementations, a request is received to send an alert to a target device of a target user. A status of the target user is determined. One or more properties of the alert are determined. Using at least the status of the target user and the one or more properties of the alert, the alert is presented on the target device according to a determined delay from a first time period during which the alert would normally be presented to a second, later time period.

Abstract: Methods, systems, and apparatus, including computer programs encoded on computer storage media, for automated package management. One of the methods includes for an image that depicts a package at a property and a person retrieving the package, determining, using data from the image or from a device for the person, whether the person is authorized to retrieve the package; and in response to determining that the person is authorized to retrieve the package, determining to skip performing an automated action that would have been performed if the person was not authorized to retrieve the package.

Abstract: Methods, systems, and apparatus, including computer programs encoded on computer storage media, for performing assistive actions using predictive human behavior. One of the methods includes obtaining a the first image of a person within a first threshold distance of a property; predicting, using the first image of the person, a task flow including a sequence of activities to be performed by the person; obtaining a second image of the person within a second threshold distance of the property; determining, using the second image, that activities performed by the person do not match the task flow; and in response to determining that the activities performed by the person do not match the predicted task flow, performing one or more actions at the property.

Abstract: Methods, systems, and apparatus, including computer programs encoded on computer storage media, for selectively obfuscating audio. One of the methods includes detecting, by a security system for a premises, that a person who was within a threshold area for the premises was likely uttering a sound; determining, using data from one or more sensors, a likelihood that the person was communicating with the security system at the premises; determining whether the likelihood satisfies a threshold likelihood and that the person's voice should not be obfuscated; and in response to determining whether the likelihood satisfies the threshold likelihood and that the person's voice should not be obfuscated, selectively obfuscating the person's voice or maintaining, in memory, an audio signal i) that encodes the person's voice and ii) was captured by a microphone that was physically located at the premises.

Abstract: Methods, systems, and apparatus for remote camera-assisted robot guidance are disclosed. A method includes obtaining images of objects approaching a door of a property; identifying candidate paths to the door based on the images of the objects approaching the door of the property; determining movement capabilities of the objects; storing the candidate paths to the door labeled by the movement capabilities of the objects that took the paths; determining capability information for a robot at the property that indicates movement capabilities of the robot; selecting, from the candidate paths, a path for the robot to take to the door based on the movement capabilities of the robot and the labels of the candidate paths; and providing guidance information to the robot that guides the robot to the door along the selected path.

Abstract: Methods, systems, and apparatus, including computer programs encoded on computer storage media, for monitoring extended reality spaces. One of the methods includes selecting, from a physical space at a property, a first available portion of the physical space for representing an extended reality environment; causing presentation of a first portion of the extended reality environment at the first available portion of the physical space; predicting, using sensor data generated from one or more sensors at the property, that the first available portion of the physical space will likely be interfered with; in response to predicting that the first available portion of the physical space will likely be interfered with, selecting, from the plurality of available portions of the physical space, a second available portion for representing the environment; and causing presentation of a second portion of the extended reality environment at the second available portion of the physical space.

Abstract: Methods, systems, and apparatus, including computer programs encoded on computer storage media, for monitoring extended reality spaces. One of the methods includes maintaining, for an extended reality environment generated by a first device operated by a person, data defining a three-dimensional space at a property; accessing sensor data generated by one or more sensors physically located at the property; predicting, using the sensor data, that an object will likely interfere with the three-dimensional space at the property; and in response to predicting that the object will likely interfere with the three-dimensional space at the property, providing a notification to a second device.

Abstract: Methods, systems, and apparatus, including computer programs encoded on computer storage media, for monitoring extended reality spaces. One of the methods includes determining, for a first extended reality environment generated by a first device, first data defining a first three-dimensional space at a property for the first environment; determining, for a second extended reality environment generated by a second device, second data defining a second three-dimensional space at the property for the second environment; determining whether the first space at least partially overlaps with the second space; in response to determining that the first space at least partially overlaps with the second space, determining that the first space has a higher priority than the second space; in response to determining that the first space has the higher priority than the second space, providing, to the second device, a command to adjust an experience for the second extended reality environment.

Abstract: Methods, systems, and apparatus, including computer programs encoded on computer storage media, for predictive video conference actions. One of the methods includes accessing, for a video conference in progress in an area of a property, data indicating activity at the property; predicting, using the data indicating activity at the property, that a video conference interruption is likely to occur; and in response to determining that a video conference interruption is likely to occur, performing one or more actions to reduce a likelihood that the video conference interruption will be presented during the video conference.

Abstract: Methods, systems, and apparatus, including computer programs encoded on computer storage media, for performing actions based on predicted precipitation accumulation. One of the methods includes receiving, from a camera, image data that depicts at least a portion of a property; determining, using the image data, a predicted current amount of precipitation that has accumulated at the property; receiving additional data that identifies characteristics of the property; determining one or more actions to remove at least some of the precipitation from the property using the predicted current amount of precipitation that has accumulated at the property, and the characteristics of the property; and performing the one or more actions to remove at least some of the precipitation from the property.