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A sequence of events recorder (SER) [1] is an intelligent standalone microprocessor based system, which monitors external inputs and records the time and sequence of the changes. [2] [3] They usually have an external time source such as a GPS or radio clock. When wired inputs change state, the time and state of each change is recorded.
Doorbell at the entrance of Chetham's Library, Manchester, England Sound of a two-tone mechanical doorbell. A doorbell is a signaling device typically placed near a door to a building's entrance. When a visitor presses a button, the bell rings inside the building, alerting the occupant to the presence of the visitor. Although the first ...
A second-generation model, Ring Doorbell 2, was released in 2017, with updated hardware and a 1080p camera with improved low-light performance, that does not rely solely on Wi-Fi, unlike the original model. [44] The Ring Doorbell Pro interoperates with Amazon Alexa to play prerecorded greetings to visitors and allow visitors to leave a message ...
Detection causes an internal event that may be output to external equipment and/or be used to trigger changes in other internal features. Routing of input video to video monitors based on user inputs or automatically on alarms or events. Input, time and date stamping. Alarm and event logging on appropriate video inputs. Alarm and event search.
Amazon Alexa, or, Alexa, [2] is a virtual assistant technology largely based on a Polish speech synthesizer named Ivona, bought by Amazon in 2013. [3] [4] It was first used in the Amazon Echo smart speaker and the Amazon Echo Dot, Echo Studio and Amazon Tap speakers developed by Amazon Lab126.
An event data recorder (EDR), more specifically motor vehicle event data recorder (MVEDR), similar to an accident data recorder, (ADR) sometimes referred to informally as an automotive black box (by analogy with the common nickname for flight recorders), is a device installed in some automobiles to record information related to traffic collisions.