Abstract: A monitoring system that is configured to monitor a property is disclosed. The monitoring system includes a microphone that is configured to detect sound within an area near a door of the property and generate audio data that represents the sound. The monitoring system includes a monitor control unit configured to obtain the audio data generated by the microphone; evaluate one or more characteristics of the audio data; based on evaluating the one or more characteristics of the audio data, determine that the audio data corresponds to a knock event at the door; and in response to determining that the audio data corresponds to a knock event at the door, perform a monitoring system action. The one or more characteristics of the audio data include one or more of a duration, a peak frequency, an amplitude, or a period.

Abstract: Methods, systems, and apparatus, including computer programs encoded on computer-storage media, for security camera drone communication coupling to control and computing station. In some implementations, a first drone and a second drone are configured to monitor a property. A base station is configured to communicate with the first drone and the second drone. The first drone is configured to determine the first drone is unable to communicate with the base station and able to communicate with the second drone. Based on determining the first drone is unable to communicate with the base station and able to communicate with the second drone, the first drone is configured to determine the first drone is able to communicate with the second drone, transmit, to the second drone, a data packet and instructions to transmit the data packet to the base station.

Abstract: Methods, systems, and apparatus, including computer programs encoded on storage devices, for monitoring, security, and surveillance of a property. In one aspect, a system includes a virtual reality headset, a plurality of cameras, a plurality of sensors that includes a first sensor, a control unit, wherein the control unit includes a network interface, a processor, a storage device that includes instructions to perform operations that comprise receiving data from the first sensor that is indicative of an alarm event, determining a location of the first sensor, identifying a set of one or more cameras from the plurality of cameras that are associated with the first sensor, selecting a particular camera from the identified set of one or more cameras; and transmitting one or more instructions to the particular camera that command the particular camera to stream a live video feed to a user interface of the virtual reality headset.

Abstract: A system and method provide for the immediate transmission of a potential alarm to a remote alarm signal escrow site and from the escrow site to a host station in the event where a control panel or an alarm signaling device is tampered with or destroyed by a disablement tactic, e.g., a “crash and smash intrusion.” A system and method may also send an alarm signal during such an attack by using predictive analysis of real-time events.

Abstract: Methods, systems, and apparatus, including computer programs encoded on a storage device, for generating a three-dimensional map of a property. The method includes storing at least a portion of an initial map modification data structure, receiving an instruction that instructs the robotic device to initiate property mapping, obtaining image data describing a portion of the property that is mounted to the robotic device, analyzing the obtained image data to determine whether the image data depicts a marker, in response to a determination that the obtained image data depicts a marker, determining the pose of the camera that is mounted to the robotic device, updating the initial map modification data structure using the pose of the camera that is mounted to the robotic device, obtaining an initial three-dimensional map of the property; and modifying the initial three-dimensional map of the property based on the updated map modification data structure.

Abstract: Systems and techniques are described for supervising and monitoring the delivery of a package to a property. In some implementations, shipment data indicating a package to be delivered at the property and identification information for a first person is obtained. A request for a second person to access the property and deliver the package that includes identification information for the second person is received. Identification information for the first person is compared to the identification information for the second person. Access to the property is provided to the second person. Sensor data generated by one or more sensors that are located throughout the property and while providing access to the property is obtained and analyzed. A determination of whether the second person delivered the package to the property is made based on analyzing the sensor data. Data indicating the determination is provided for output.

Abstract: Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for tracking computing enthalpy measurements indicating abnormalities associated with operation of a heating, ventilating, and cooling (HVAC) system. In some implementations, a computer-implemented method includes: obtaining, from one or more sensors associated with the HVAC system, (i) temperature data including a source vent temperature measurement and a return vent temperature of the HVAC system, and (ii) humidity data including a source vent humidity measurement and a return vent humidity measurement of the HVAC system; computing an enthalpy measurement associated with operation of the HVAC system; determining that the computed enthalpy measurement indicates an efficiency issue associated with operation of the HVAC system; and in response to determining that the computed enthalpy measurement indicates the efficiency issue associated with operation of the HVAC system, taking action related to the HVAC system.

Abstract: A method includes receiving, by a monitoring system that is configured to monitor a property, and from a sensor, sensor data, receiving data indicating an operational state of the HVAC system, determining that the HVAC system is providing air to a smart vent device, determining (i) a particular direction for the smart vent device to direct air flowing from the HVAC system and into the room of the property and (ii) a particular flow rate for the smart vent device to provide air from the HVAC system and into the room of the property, and providing, to the smart vent device, instructions to (i) direct air flowing from the HVAC system and into the room of the property in the particular direction and (ii) adjust the flow rate of air flowing from the HVAC system and into the room of the property according to the particular flow rate.

Abstract: Methods, systems, and apparatus, including computer programs encoded on a storage device, for using a drone to test a sensor. In one aspect, the method includes actions of detecting a message (i) broadcast by the drone and (ii) indicating that the drone is going to administer a test of a sensor, determining, by the monitoring system and based on the message and (i) sensor data generated by the sensor in response to the administration of the test, by the drone, within a predetermined period of time of the message or (ii) a lack of sensor data generated by the sensor in response to the administration of the test, by the drone, within a predetermined period of time of the message, whether the sensor is functioning properly, and in response to a determination that the sensor is not functioning properly, storing data indicating that the sensor is not functioning properly.

Abstract: Methods, systems, and apparatus, including computer programs encoded on a storage device, for securing a network associated with a property in response to the detection of a hacking drone within a vicinity of the property. In one aspect, a method includes obtaining sensor data from one or more sensors located at a property, detecting, based on the obtained sensor data, the presence of a drone, determining, based on the obtained sensor data, that the detected drone is an unauthorized drone, determining, by the monitoring system, that the unauthorized drone (i) is communicating or (ii) attempting to communicate with a network associated with the property, selecting one or more network adjustment policies, and transmitting one or more instructions to (i) one or more monitoring system components or (ii) one or more network components that are configured to adjust network parameters based on the one or more selected network adjustment policies.

Abstract: A method includes receiving, by a monitoring system that is configured to monitor a property and from a visitor to the property, a personally identifying code and a biometric identifier, determining that the personally identifying code corresponds to a stored personally identifying code, receiving, by the monitoring system, location information that corresponds to locations of the visitor during a time period before visiting the property, comparing the biometric identifier to a stored biometric identifier, based on determining that the personally identifying code corresponds to a stored personally identifying code, comparing the biometric identifier to the stored biometric identifier, and the location information, determining a confidence score that reflects a likelihood that the visitor is authorized to access the property, based on the confidence score that reflects the likelihood that the visitor is authorized to access the property, selecting, from among multiple monitoring system actions, a monitoring sy

Abstract: Methods, systems, and apparatus, including computer programs encoded on a storage device, for monitoring a vehicle are disclosed. A vehicle monitoring system for monitoring a vehicle includes one or more processors and one or more computer storage media storing instructions that are operable, when executed by the one or more processors, to cause the one or more processors to perform operations. The operations include: receiving, from a vehicle occupancy monitor and by the vehicle monitoring system, vehicle occupancy data that indicates presence of a vehicle occupant; receiving, by the vehicle monitoring system and from a sensor, sensor data that indicates an attribute of the vehicle; analyzing, by the vehicle monitoring system, the vehicle occupancy data and the sensor data; and based on analyzing the vehicle occupancy data and the sensor data, performing a vehicle monitoring system action.

Abstract: Techniques are described for replacing a keypad of an existing security system within a property with a communication-enabled keypad device with dual functioning capabilities as a communicator device and a keypad device. In some implementations, data is received from a security panel of a property. A keypad bus protocol of the security panel is determined based on the data received from the security panel. Sensor data is received from one or more sensors located within the property. A monitoring system command that is not specified within a keypad bus of the security panel is determined based on based on the obtained sensor data. The monitoring system command is converted to a panel command using the keypad bus protocol. The panel command is transmitted on the keypad bus of the security panel.

Abstract: Methods and systems for granting access to a building are disclosed. The system includes a telephone entry system associated with the building, a processor in communication with the telephone entry system, a non-transitory computer readable medium. The non-transitory computer-readable medium includes one or more programming instructions that when executed by the processor, cause the processor to receive a request including an access code for access to the building code, determine whether the access code is valid, and transmit to the telephone entry system associated with the building a sequence of dual-tone multi-frequency (DTMF) tones to cause the telephone entry system to grant access to the building in response to determining that the access code is valid.

Abstract: Methods, systems, and apparatus, including computer programs encoded on a storage device, are disclosed. A system includes one or more processors and one or more computer storage media storing instructions that are operable, when executed by the one or more processors, to cause the one or more processors to perform operations comprising: obtaining, by the system, video of a scene captured by a camera; determining a likelihood that the camera will be tampered with based on the video of the scene; determining that the likelihood that the camera will be tampered with satisfies criteria; and transmitting data generated from the video.

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 reflects an attribute of a property. The monitoring system further includes a drone that generates image data, location data, and orientation data. The monitoring system further includes a monitor control unit. The monitor control unit is configured to receive the sensor data, the location data, and the orientation data. The monitor control unit is configured to determine that an event has occurred at the property and a location of the event within the property. The monitor control unit is configured to generate a graphical overlay based on the event, the location data, and the orientation data. The monitor control unit is configured to generate a graphical interface. The monitor control unit is configured to output the graphical interface.

Abstract: Techniques are described for presenting events detected by a monitoring system. A system receives a selection of a particular time period, identifies security events detected by a monitoring system during the selected time period, and classifies a subset of the identified security events as abnormal events. The system further generates a density of the identified security events over the selected time period, generates a density of the subset of the identified security events classified as abnormal events, and identifies monitoring system data associated with the selected time period. The system additionally generates a graphical representation of the density of the identified security events, the density of the subset of the identified security events classified as abnormal events, and the identified monitoring system data, and provides the graphical representation for display.

Abstract: A monitoring system that is configured to monitor a property includes a connected scale device that is configured to receive a package, determine a weight of the package, and after determining the weight of the package, arm the connected scale device, and a monitoring control unit that is configured to receive, from the connected scale device, data indicating that the connected scale device received the package and the connected scale device is armed, and based on receiving the data indicating that the connected scale device received the package and the connected scale device is armed, communicate, to a user device of a resident of the property, a notification indicating that the connected scale device received the package.

Abstract: In some implementations, a system is capable of managing keys for encrypting media streams over UDP communications between a media source and an associated server. A key is initially generated for encrypting a media stream captured by a media source device associated with a monitoring system of a property. A first instruction is provided to the media source device and over a secure communication channel. The first instruction causes the media source device to encrypt the media stream using the key when received by the media source device. A second instruction is generated for decrypting the encrypted media stream. The second instruction is provided to a computing device associated with the property. The second instruction causes the computing device to decrypt the encrypted media stream when received by the computing device.

Abstract: A method includes receiving, by an armed monitoring system of a property and from a user, a disarm code, comparing the received disarm code to a stored disarm code, determining that the received disarm code matches the stored disarm code, determining a property access pattern that corresponds to the stored disarm code, that identifies a first door group of one or more doors inside the property that should be locked, and that identifies a second door group of one or more doors inside the property that should be unlocked, providing, to the first door group, a first instruction to lock, providing, to the second door group, a second instruction to unlock, and based on providing, to the first door group, the first instruction to lock and providing, to the second door group, the second instruction to unlock, disarming the monitoring system.