An apparatus for event detection is provided. The apparatus comprises an error signal determiner for determining an error signal portion depending on a pressure signal. The error signal determiner determines a predicted signal portion depending on a first signal portion of the pressure signal. The error signal determiner also determines the error signal portion depending on the predicted signal portion and depending on a second signal portion of the pressure signal, wherein the second signal portion of the pressure signal succeeds the first signal portion of the pressure signal in time. The apparatus also comprises a classifier for determining, depending on the error signal portion, whether an event of a group of one or more events has occurred or whether no event of the group has occurred.

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.

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.

A security system and apparatus for a home or business is provided. The security system has a sensor connected to a liquid dispenser. The sensor is triggered upon the breaking of glass or a door of a building. The liquid dispenser, when activated, dispenses a non-toxic liquid marker. The liquid dispenser sprays a mist of the liquid on the intruder so that the intruder may be easily identified.

A security system and apparatus for a home or business is provided. The security system has a sensor connected to a liquid dispenser. The sensor is triggered upon the breaking of glass or a door of a building. The liquid dispenser, when activated, dispenses a non-toxic liquid marker. The liquid dispenser sprays a mist of the liquid on the intruder so that the intruder may be easily identified.

A security system and apparatus for a home or business is provided. The security system has a sensor connected to a liquid dispenser. The sensor is triggered upon the breaking of glass or a door of a building. The liquid dispenser, when activated, dispenses a non-toxic liquid marker. The liquid dispenser sprays a mist of the liquid on the intruder so that the intruder may be easily identified.

A security system and apparatus for a home or business is provided. The security system has a sensor connected to a liquid dispenser. The sensor is triggered upon the breaking of glass or a door of a building. The liquid dispenser, when activated, dispenses a non-toxic liquid marker. The liquid dispenser sprays a mist of the liquid on the intruder so that the intruder may be easily identified.

A security mechanism for a store in which the exit door is selectively locked when an alarm, such as the sound of breaking glass is sensed. The locked door, once locked in response to a security alarm, is opened by the presence of an emergency vehicle proximate to the store, thereby allowing police to enter the store.

A security mechanism for a store in which the exit door is selectively locked when an alarm, such as the sound of breaking glass is sensed. The locked door, once locked in response to a security alarm, is opened by the presence of an emergency vehicle proximate to the store, thereby allowing police to enter the store.

A glass break detection testing system including a speaker communicatively coupled to a remote device, the remote device being configured to transmit a recorded sound file to the speaker thereby causing the speaker to emit the transmitted sound file.