A technique for detecting the occurrence of an event, and for estimating other event-related information, by analyzing the barometric pressure in the vicinity of one or more wireless terminals. The disclosed detection technique is based on the recognition that the barometric sensor on various wireless terminals, such as smartphones, is capable of measuring very subtle changes in the atmospheric pressure. The disclosed detection technique is also based on the additional recognition of how some of the changes in the atmospheric pressure, as measured by a wireless terminal, correlate to various events that occur within a building or other defined area. For example, the disclosed technique can detect an entry door opening or closing by analyzing a resultant pressure wave having a particular transient that is perceptible by one or more wireless terminals in the area and analyzed by a detection engine.

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.

A system includes an imaging part that captures an image, a sound collection part that collects sounds, a display part that displays image data captured by the imaging part, a directive direction calculation part that calculates a directive direction which directs toward a sound position corresponding to a designated position of the image data from the sound collection part when any position of the displayed image data is designated, and a control part that forms a directivity in the sounds in the calculated directive direction. The control part controls output of the sounds collected by the sound collection part or output of the sounds which are collected by the sound collection part and of which the directivity is formed, or suspends collection of sounds in the sound collection part, when it is determined that the sound position is included in a preset protection region.

It is provided a sensor device comprising: a vibration detector configured to be provided in contact with a windowpane of a window; a sensor controller; and a cable between the vibration detector and the sensor controller; wherein the vibration detector comprises a piezoelectric sensor that is configured to wake up the sensor controller when a vibration is detected by the piezoelectric sensor.

Systems, methods, devices, non-transitory computer-readable mediums, and apparatuses are presented for detecting and positioning sound in a home automation system. Indications of sounds and timestamps may be received from various home automation devices. Using the received indications, a sound magnitude for the sound and whether the sound originated inside or outside of the structure can be determined. The sound magnitude may be compared to an inside sound threshold level if the sound was determined to originate inside the structure or compared to an outside sound threshold level if the sound was determined to originate outside the structure. Sound information corresponding to the sound may be logged if the sound was determined to originate inside and the sound magnitude exceeds the inside sound threshold level or the sound was determined to originate outside and the sound magnitude exceeds the outside sound threshold level.

An abnormal status monitoring system includes a monitored side and a monitoring side. The monitored side includes a first status sensing unit for generating status information of the monitored side and a signal transmission unit for transmitting a wireless signal which includes the status information of the monitored side. The monitoring side includes a second status sensing unit for generating status information of the monitoring side, a signal receiving unit for receiving the wireless signal, and a control unit. When the received signal strength index of the wireless signal is higher than a first threshold value, the control unit compares the status information of the monitored side and the status information of the monitoring side. When a difference between the status information of the monitored side and the status information of the monitoring side is larger than a second threshold value, the control unit generates an alarm.

Example implementations include a method, apparatus, and computer-readable medium comprising monitoring, by a control panel, an ambient noise via one or more microphones in the control panel. The implementations further include determining, by the control panel, whether the ambient noise includes an acoustic signature associated with a security event. In some implementations, the security event may comprise a glass break event. In some implementations, the acoustic signature may comprise a first sound followed by subsequent sounds. The first sound may comprise a thump sound, and the subsequent sounds may comprise crashing sounds.

An audio surveillance system includes a plurality of nodes and each node includes a microphone, a speaker, and a control unit. The microphone is configured to detect sound and the speaker is configured to provide sound. The control unit is configured to receive a plurality of inputs from the plurality of nodes and the plurality of inputs are based on a detected sound; determine a location of the source of the detected sound based on the plurality of inputs; classify the detected sound according to predefined alert conditions and based on the location of the source of the detected sound; provide an alert to a monitoring device regarding the detected sound based on the classification of the detected sound; and control at least one node from the plurality of nodes to provide an audio response to the detected sound.

The present invention provides a non-contact monitoring system, including: a radar detection module, an infrared sensing module, a micro control unit and a communication module. The radar detection module transmits a radar detection signal via the radar antenna to an area, receives a radar reflection signal from the area, and transmits the radar reflection signal to the micro control unit. The infrared sensing module detects a heat source of an organism in the area, and transmits an infrared sensing signal to the micro control unit. The micro control unit receives and processes the radar reflection signal transmitted by the radar detection module and the infrared sensing signal transmitted by the infrared sensing module, and transmits an alarm signal to the communication module. The communication module receives the alarm signal transmitted by the micro control unit, and transmits the alarm signal to a remote monitoring end via the antenna.

A glass breakage detection method, constituted of: receiving a plurality of audio samples; estimating low frequency power values of the received plurality of audio samples; estimating wide band power values of the received plurality of audio samples; responsive to the estimated wide band power values, determining an amplification value; responsive to the estimated low frequency power being greater than a predetermined threshold, amplifying a function of the received plurality of audio samples by the determined amplification value; comparing the amplified function with a predetermined function of sound of breaking glass; and outputting an indication of the comparison.