Intelligent multi-sensor alarm system with sensor fusion and networked alarm forwarding

Abstract

Hazard detectors for detecting smoke and gas concentrations in indoor spaces, consisting of - at least one optical smoke sensor, - at least one gas sensor to detect the CO2 concentration, - at least one radar sensor for detecting people's movements or presence, - min. a control unit, characterized in that the data recorded by the sensors are evaluated jointly or separately and, in the event of a hazardous event, both a local alarm and a wireless alarm message are issued to a networked alarm system.

Description

Technical field

[0001] The invention relates to a hazard detector for the early detection of smoke, gas and hazardous situations in indoor spaces.

[0002] In particular, the invention relates to a networked multi-sensor detector with combined smoke, gas and person detection as well as cloud-based alarm processing and alarm forwarding. State of the art

[0003] Smoke detectors, CO or CO2 detectors and networked alarm systems are known from the state of the art.

[0004] Furthermore, motion sensors and presence detectors, especially those based on infrared or radar, are known.

[0005] However, known systems collect this sensor data separately or without systemic evaluation.

[0006] False alarms caused by cooking fumes, dust, or short-term gas concentrations are common.

[0007] Furthermore, known detectors lack active, directional support for orientation in case of danger, as well as intelligent forwarding of alarms to personal warning devices. Object of the invention

[0008] The object of the invention is to provide a hazard detector that: • enables reliable early detection of smoke and gas incidents, • False alarms reduced through combined sensor technology, • the presence of persons is taken into account, • and forwards hazardous events locally as well as via a networked system. Solution to the task

[0009] The problem is solved by a hazard detector with the features of claim 1. Advantageous embodiments are set out in the dependent claims.

[0010] The hazard detector according to the invention combines at least one optical smoke sensor, one humidity sensor, one gas sensor for detecting the CO2 concentration, and one radar sensor for person detection.

[0011] The collected sensor data is evaluated jointly or separately to distinguish genuine hazardous situations from false alarms. Examples of implementation

[0012] The fire alarm is designed for ceiling mounting and is housed in a casing. It can also be mounted on walls. The casing can be made of metal, plastic, or another material and may include visual indicators.

[0013] The detector includes: • at least one optical smoke detector, • at least one gas sensor to measure the CO2 concentration, • at least one radar sensor to detect people's movements or presence.

[0014] Upon detection of a hazardous event, local warning signals are issued, consisting of: • an audible alarm, and / or • visual warning indicators, and / or • as well as an activated light source to provide visibility and orientation support in case of smoke development.

[0015] In addition, alarm messages are transmitted via a wireless or wired communication interface to a cloud-based platform, from where further networked warning or security devices can be controlled.

Claims

[1] Smoke and gas detectors for detecting indoor smoke and gas concentrations, consisting of - at least one optical smoke sensor, - at least one gas sensor to detect the CO2 concentration, - at least one radar sensor for detecting people's movements or presence, - at least one control unit, characterized by that the data recorded by the sensors are evaluated jointly or separately and that, in the event of a hazardous event, both a local alarm and a wireless alarm message are issued to a networked alarm system. [2] Hazard detector according to claim 1, characterized by that the joint evaluation of sensor data serves to reduce false alarms. [3] Hazard detector according to any of the preceding claims, characterized by , that the radar sensor is designed, for example, as an mmWave radar sensor. [4] Hazard detector according to any of the preceding claims, characterized bythat the local alarm includes acoustic and / or visual warning signals. [5] Hazard detector according to any of the preceding claims, characterized by , that a light source is activated to provide visual or orientation support in the event of smoke development. [6] Hazard detector according to any of the preceding claims, characterized by that optical indicator elements are provided to display operating, maintenance or alarm conditions. [7] Hazard detector according to any of the preceding claims, characterized by that alarm messages are forwarded to external, networked alarm or security devices. [8] Hazard detector according to any of the preceding claims, characterized by that the detector is connected to a cloud-based platform or control center via a wireless or wired communication interface. [9] Hazard detector according to any of the preceding claims, characterized bythat several alarm levels are provided for, depending on the intensity or course of the hazardous event. [10] Hazard detector according to any one of the preceding claims, characterized by that operational and alarm data are logged and can be accessed via an external application.