In accordance with one or more embodiments herein, a flame detecting arrangement 100 is provided. The flame detecting arrangement 100 comprises: at least one optical flame detector 110, arranged with its field-of-view covering a predetermined area; at least one movement sensor 120, arranged together with the at least one flame detector 110; and at least one processing device 180 arranged together with the at least one flame detector 110. The at least one processing device 180 is arranged to: receive signals from the movement sensor 120; detect abnormal movement of the flame detector 110 based on these signals; and alert an operator and/or a control system 200 if abnormal movement of the flame detector 110 has been detected. This enables the field-of-view of the flame detector to be corrected to the desired, preferably the original, field-of-view.

In accordance with one or more embodiments herein, a flame detecting arrangement 100 is provided. The flame detecting arrangement 100 comprises: at least one optical flame detector 110, arranged with its field-of-view covering a predetermined area; at least one movement sensor 120, arranged together with the at least one flame detector 110; and at least one processing device 180 arranged together with the at least one flame detector 110. The at least one processing device 180 is arranged to: receive signals from the movement sensor 120; detect abnormal movement of the flame detector 110 based on these signals; and alert an operator and/or a control system 200 if abnormal movement of the flame detector 110 has been detected. This enables the field-of-view of the flame detector to be corrected to the desired, preferably the original, field-of-view.

A method of monitoring an antenna array comprises generating first image data at a first time. The first image data is reproducible as a first image of an antenna array unit. The method further comprises generating second image data at a second time. The second image data is reproducible as a second image of the antenna array unit. The method further comprises comparing the first image data and the second image data. The method further comprises transmitting an alert that is indicative of the presence of at least one with the antenna array unit at the second time. The alert is transmitted in response to the comparison between the first image data and the second image data indicating the presence of the at least one fault with the antenna array unit at the second time.

Various aspects of the disclosure relate to monitoring a physical location to determine and/or predict anomalous activities. One or more machine learning algorithms may be used to analyze inputs from one or more sensors, cameras, audio recording equipment, and/or any other types of sensors to detect anomalous measurements/patterns. Notifications may be sent one or more devices in a network based on the detection.

The present invention relates to an intelligent flame detection apparatus and method using an infrared thermogram, which combine a conventional flame detector with an infrared thermographic camera and an infrared thermogram processing technology, and which enable whether a flame signal received from a flame sensor is an allowed flame or an artificial flame to be accurately detected, thereby improving the accuracy of fire alarms.

A thermographic detector device for a fire alarm control system is described herein. In some examples, one or more embodiments include a thermography camera configured to capture a thermal image within a field of view of the thermographic detector device, a memory and a processor to execute instructions stored in the memory to detect a fault associated with the thermographic detector device, wherein the fault includes at least one of a field of view fault, an operating parameter fault, and an internal fault, generate a fault signal upon detecting the fault, and provide a notification of the fault using the fault signal.

A danger detector, for example a flame detector, includes an alarm housing with an alarm cover. The housing part of the alarm cover is permeable to heat radiation in the central infrared range. A non-contact, optical heat radiation sensor which is sensitive to the incoming heat radiation and optically oriented to the housing part is arranged in the alarm housing. A processing unit for further processing a sensor signal emitted by the heat radiation sensor is mounted downstream of the heat radiation sensor. The processing unit is designed to monitor the signal emitted by the sensor with respect to significant fluctuations or flicker frequencies for open flames and to determine, based on a direct component of the signal emitted by the sensor, a temperature value for the ambient temperature in the surroundings of the danger detector. The heat radiation sensor may be a thermopile or a bolometer.

A danger detector, for example a flame detector, includes an alarm housing with an alarm cover. The housing part of the alarm cover is permeable to heat radiation in the central infrared range. A non-contact, optical heat radiation sensor which is sensitive to the incoming heat radiation and optically oriented to the housing part is arranged in the alarm housing. A processing unit for further processing a sensor signal emitted by the heat radiation sensor is mounted downstream of the heat radiation sensor. The processing unit is designed to monitor the signal emitted by the sensor with respect to significant fluctuations or flicker frequencies for open flames and to determine, based on a direct component of the signal emitted by the sensor, a temperature value for the ambient temperature in the surroundings of the danger detector. The heat radiation sensor may be a thermopile or a bolometer.

An ultraviolet flame detector (100) includes a housing (102) having an opening (103) at a first end (101a) of the housing (102), and a window structure (104) arranged to cover the opening (103) of the housing (102). A photocathode (106) is arranged to a second end (101b) of the housing (102) so that the photocathode (106) is facing inside the housing (102). An anode wire (108) is arranged between the window structure (104) and the photocathode (106). The anode wire (108) is configured to travel transversally across the housing (102). The ultraviolet flame detector (102) is filled with a gas.

The present invention relates to a stopper-type charging device and a driving method thereof, wherein the stopper-type charging device includes an emergency bell unit that is provided on a main body part of a stopper for a vehicle installed on a floor of a parking lot and operates to prevent crime in a surveillance blind spot in the parking lot, a light emitting unit that guides a vehicle parked in the parking lot to be parked in a parking section for charging, and operates as a flash to illuminate a periphery of the vehicle, and a sensor unit that detects a fire by detecting a flame of the vehicle being charged.