Abstract: A control panel for controlling a security system. The control panel may comprise: one or more components; a memory for storing booting instructions, and a processor for executing the stored booting instructions. When carrying out a booting process defined by the booting instructions, the processor may be configured to generate at least one random time-delay value; assign the at least one random time-delay value to at least one booting stage of the booting process; delay the at least one booting stage of the booting process by the at least one time-delay value. Each of the at least one time-delay value may be assigned to one booting stage of the booting process, and each of the at least one booting stage may correspond to booting at least one of the one or more components.

Abstract: A smart doorbell is provided. The doorbell may be connected to a remote device. The doorbell comprises a processor: a call button configured to output a first signal when the call button is actuated by a user; and a temperature sensor positioned with respect to the call button such that when the call button is actuated by a user, the temperature sensor is capable of taking temperature measurements on a part of the user's wrist facing the temperature sensor. In response to the call button being actuated by a user, the processor is configured to receive the first signal from the call button: command the temperature sensor to measure a temperature of a part of the user's wrist: compare the temperature measured by the temperature sensor to a predefined threshold temperature: output a second signal according to the comparison between the temperature measured by the temperature sensor and the predefined threshold; and transmit the first signal and the second signal to at least one remote device via the network.

Abstract: A method for adjusting brightness of an electronic visual display of an electronic device, comprising: identifying a luminance-indicating area in a field of view of an image sensor of the electronic device; capturing at least one first image of the field of view by the image sensor; determining an ambient luminance value for the electronic visual display using the luminance-indicating area of the at least one first image; and adjusting the brightness of the electronic visual display according to the determined ambient luminance value; wherein the step of identifying the luminance-indicating area in the field of view of the image sensor comprises: capturing a plurality of second images of the field of view by the image sensor, each second image being taken at a different time of a day, and analyzing the plurality of second images so as to identify an area of the field of view of the image sensor which has the most stable average luminance level.