A patient monitor can diagnose whether its speaker is blocked, malfunctioning, or at a volume that is too low. For example, the monitor can include a processor that can diagnose the speaker by recording a microphone input signal. The processor can compare the microphone input signal to an expected alarm signal that should be output by the speaker. If the two do not match or reasonably correspond to one another, then the processor may increase the volume of the alarm to determine whether doing so can overcome an obstruction, noise, or potential malfunction. The microphone can again detect the speaker output, and the processor can again make another comparison or analysis of the input with the speaker output. If the speaker output as detected via the microphone is still insufficiently loud, then the patient monitor may output an indication that the speaker has a problem.

A patient monitor can diagnose whether its speaker is blocked, malfunctioning, or at a volume that is too low. For example, the monitor can include a processor that can diagnose the speaker by recording a microphone input signal. The processor can compare the microphone input signal to an expected alarm signal that should be output by the speaker. If the two do not match or reasonably correspond to one another, then the processor may increase the volume of the alarm to determine whether doing so can overcome an obstruction, noise, or potential malfunction. The microphone can again detect the speaker output, and the processor can again make another comparison or analysis of the input with the speaker output. If the speaker output as detected via the microphone is still insufficiently loud, then the patient monitor may output an indication that the speaker has a problem.

An emergency lighting system provides testing and reporting functionality in a rapidly repeatable fashion for environments with numerous emergency lighting units. In one or more embodiments, the emergency lighting system comprises a plurality of emergency lighting units capable of conducting one or more tests and reporting their operating condition as test results. One or more terminals receive and aggregate the test results and present the same to a user. Emergency lighting units having an undesirable operating condition can then be readily identified and addressed.

An audio riser active electrical supervision system includes a high-voltage audio alert system connected to a riser circuit. The high-voltage audio alert system disconnects a high-voltage analog signal from the riser circuit when the audio riser active electrical supervision system operates in a standby mode, and connects the high-voltage analog signal to the riser circuit when the audio riser active electrical supervision system operates in an active alert mode. A plurality of isolator modules operate in a closed state that connects a circuit node to the riser circuit and an open state that disconnects the respective circuit node from the riser circuit. A riser supervision circuit is connected to at least one isolator module to detect a circuit fault on the riser circuit when the audio riser active electrical supervision system operates in the standby mode and the active alert mode.

An audio riser active electrical supervision system includes a high-voltage audio alert system connected to a riser circuit. The high-voltage audio alert system disconnects a high-voltage analog signal from the riser circuit when the audio riser active electrical supervision system operates in a standby mode, and connects the high-voltage analog signal to the riser circuit when the audio riser active electrical supervision system operates in an active alert mode. A plurality of isolator modules operate in a closed state that connects a circuit node to the riser circuit and an open state that disconnects the respective circuit node from the riser circuit. A riser supervision circuit is connected to at least one isolator module to detect a circuit fault on the riser circuit when the audio riser active electrical supervision system operates in the standby mode and the active alert mode.

The disclosure relates to an alarm system comprising a plurality of detectors, each configured to detect an event in an environment and to emit an event detection signal, and a plurality of alarm signal emitters, each configured to emit at least one alarm signal in case of the detection of an event, the detectors and the emitters being linked to one another, wherein each of the emitters is configured to emit a plurality of distinct alarm signals. In case of the detection of an event by a first detector, a first identifier is assigned to at least one first emitter, the closest to the first detector out of the plurality of emitters, and an alarm generation instruction is transmitted to the first emitter with the first identifier, to activate the first emitter with a first alarm signal which is a function of the first identifier.

The disclosure relates to an alarm system comprising a plurality of detectors, each configured to detect an event in an environment and to emit an event detection signal, and a plurality of alarm signal emitters, each configured to emit at least one alarm signal in case of the detection of an event, the detectors and the emitters being linked to one another, wherein each of the emitters is configured to emit a plurality of distinct alarm signals. In case of the detection of an event by a first detector, a first identifier is assigned to at least one first emitter, the closest to the first detector out of the plurality of emitters, and an alarm generation instruction is transmitted to the first emitter with the first identifier, to activate the first emitter with a first alarm signal which is a function of the first identifier.

The present invention relates to a device for generating sound messages, comprising: a generation chain configured to generate a first and a second sound signal carrying a useful audio signal and a test audio signal; a conversion chain configured to transform the first and second sound signals into first and second analog signals; and a verification chain configured to extract the test audio signal from a combination of the analog signals to verify the integrity of the useful audio signal.
The first sound signal corresponds to the sum of the test audio signal and the useful audio signal, and the second sound signal corresponds to the sum of the test audio signal and an opposite signal corresponding to the opposite of the useful audio signal.

Example implementations include a method, apparatus, and computer-readable medium comprising measuring a capacitance value between two measurement points in a capacitive sensing sensor of a door/window displacement detector, wherein the capacitance value between the two measurement points changes based on a proximity of the two measurement points to a door/window; and determining an open/close status of the door/window based on the capacitance value.

Example implementations include a method, apparatus, and computer-readable medium comprising capturing visual or audio data using at least one camera or microphone in a control panel; performing, by a processor of the control panel, at least one of a voice recognition or a facial recognition, based on the visual or audio data captured by the at least one camera or microphone in the control panel; recognizing an individual according to at least one of the voice recognition or the facial recognition; and presenting, on a display of the control panel, a graphical user interface that includes features associated with the individual.