Devices, methods, and systems for a self-testing hazard sensing device are described herein. One device includes a sensor, a wire dipped in a material, a controller configured to provide a current to the wire to heat the material and generate aerosol and/or carbon monoxide, and an airflow generator configured to provide the aerosol and/or carbon monoxide to the sensor. The controller configured to determine whether the self-testing hazard sensing device is functioning properly using the aerosol and/or carbon monoxide provided to the sensor.

Devices, methods, and systems for a self-testing hazard sensing device are described herein. One device includes a sensor, a wire dipped in a material, a controller configured to provide a current to the wire to heat the material and generate aerosol and/or carbon monoxide, and an airflow generator configured to provide the aerosol and/or carbon monoxide to the sensor. The controller configured to determine whether the self-testing hazard sensing device is functioning properly using the aerosol and/or carbon monoxide provided to the sensor.

An apparatus to locally monitor, and report to a remote monitoring system, specific physical conditions of equipment that provide early indication of failure conditions, including but not limited to: temperature, level of fluids, pressure, temperature, the presence of gases or airborne particulate, and signs leaks.

The invention relates to a method for early detection of a forest fire using an end device having a sensor unit, the sensor unit performing signal detection in a first signal detection mode and in a second signal detection mode, and to a forest fire early detection system for performing the method.

The invention relates to a method for early detection of a forest fire using an end device having a sensor unit, the sensor unit performing signal detection in a first signal detection mode and in a second signal detection mode, and to a forest fire early detection system for performing the method.

A fire detector for monitoring an environment and a method of operating a fire detector including a smoke sensor and a volatile organic compound, VOC, sensor are described. A fire detector 10 for monitoring an environment 20 includes a smoke sensor 12 and a volatile organic compound, VOC, sensor 14, the fire detector 10 is configured to adjust a smoke sensitivity of the fire detector 10 based on a VOC concentration detected by the VOC sensor 14. The smoke sensitivity is decreased when increased VOC concentrations are detected.

A fire detector for monitoring an environment and a method of operating a fire detector including a smoke sensor and a volatile organic compound, VOC, sensor are described. A fire detector 10 for monitoring an environment 20 includes a smoke sensor 12 and a volatile organic compound, VOC, sensor 14, the fire detector 10 is configured to adjust a smoke sensitivity of the fire detector 10 based on a VOC concentration detected by the VOC sensor 14. The smoke sensitivity is decreased when increased VOC concentrations are detected.

An apparatus, including a database which stores a travel itinerary or schedule of an individual; a processor; a global positioning system device; and a transmitter. The processor monitors a movement of the individual, compares information obtained by the global positioning system device with information contained in the travel itinerary or schedule, detects a deviation from an expected position, location, or travel route, and generates a message containing information regarding a date and time of the deviation and position or location information of the apparatus. The transmitter or apparatus transmits the message or information contained in the message to a drone. An operation of the drone is activated, the drone travels to the position or location of the apparatus, records video information of the apparatus or individual or of an area in a vicinity of the apparatus or individual, and transmits the video information to the user device or the computer.

An apparatus, including a database which stores a travel itinerary or schedule of an individual; a processor; a global positioning system device; and a transmitter. The processor monitors a movement of the individual, compares information obtained by the global positioning system device with information contained in the travel itinerary or schedule, detects a deviation from an expected position, location, or travel route, and generates a message containing information regarding a date and time of the deviation and position or location information of the apparatus. The transmitter or apparatus transmits the message or information contained in the message to a drone. An operation of the drone is activated, the drone travels to the position or location of the apparatus, records video information of the apparatus or individual or of an area in a vicinity of the apparatus or individual, and transmits the video information to the user device or the computer.

A fire alarm apparatus with non-fire alarm prevention function according to an embodiment of the inventive concept includes a plurality of sensing units having different address information and configured to generate a fire detection signal when each sensing unit detects at least one of smoke, temperature, humidity, and gas to determine a fire situation, a repeater configured to perform wireless communication with each of the plurality of sensing units, a receiver configured to perform wireless communication with the repeater, and a first server configured to perform wireless communication with the receiver and determine the fire situation based on the fire detection signal, wherein the first server includes a big data reception unit configured to receive big data from an external second server, and a non-fire alarm determination unit configured to determine validity of the fire detection signal based on the big data and values detected by each of the plurality of sensing units based on different criteria for each situation.