Abstract:
The sound wave and temperature sensor of the present disclosure can be used for detecting whether a fire accident occurs within a specific area without risking altering or damaging existing sensors, and can be a part of an intelligent home security system. One aspect is to provide an integrated sound wave and temperature sensor that can efficiently work together with the existing sensors. An example apparatus can include a sound sensor, a temperature sensor, a communication circuit, and a microcontroller. The microcontroller can be configured to, responsive to the sound sensor detecting an audible alarm emitted from an environmental detector, determine whether an ambient temperature exceeds a threshold value. Further, the microcontroller can, responsive to both the sound sensor detecting the audible alarm and the ambient temperature exceeding a threshold value, cause the communication circuit to transmit an alert to a recipient.
Abstract:
Methods, systems, and apparatus, for an infrared detector are provided. In one aspect, an infrared detector is provided that includes a pyroelectric sensor; a controller for receiving a trigger signal outputted by the pyroelectric sensor; a thermopile sensor, wherein the controller starts the thermopile sensor after receiving the trigger signal output by the pyroelectric sensor; and an alarm, wherein the controller controls the alarm to generate an alarm signal in response to a determination that a difference between a current temperature and a background temperature detected by the thermopile sensor is larger than a threshold value and a determination that the areas of the thermopile sensor activated correspond to a human being.
Abstract:
Methods, systems, and apparatus, for an infrared detector are provided. In one aspect, an infrared detector is provided that includes a pyroelectric sensor; a controller for receiving a trigger signal outputted by the pyroelectric sensor; a thermopile sensor, wherein the controller starts the thermopile sensor after receiving the trigger signal output by the pyroelectric sensor; and an alarm, wherein the controller controls the alarm to generate an alarm signal in response to a determination that a difference between a current temperature and a background temperature detected by the thermopile sensor is larger than a threshold value and a determination that the areas of the thermopile sensor activated correspond to a human being.
Abstract:
Methods, systems, and apparatus, for an infrared detector are provided. In one aspect, an infrared detector is provided that includes a pyroelectric sensor; a controller for receiving a trigger signal outputted by the pyroelectric sensor; a thermopile sensor, wherein the controller starts the thermopile sensor after receiving the trigger signal output by the pyroelectric sensor; and an alarm, wherein when the thermopile sensor determines that a difference between a current temperature and a background temperature is larger than a threshold value, the controller controls the alarm to generate an alarm signal.