Why Are People's Decisions Sometimes Worse with Computer Support?

In many applications of computerised decision support, a recognised source of undesired outcomes is operators' apparent over-reliance on automation. For instance, an operator may fail to react to a potentially dangerous situation because a computer fails to generate an alarm. However, the very use of terms like "over-reliance" betrays possible misunderstandings of these phenomena and their causes, which may lead to ineffective corrective action (e.g. training or procedures that do not counteract all the causes of the apparently "over-reliant" behaviour). We review relevant literature in the area of "automation bias" and describe the diverse mechanisms that may be involved in human errors when using computer support. We discuss these mechanisms, with reference to errors of omission when using "alerting systems", with the help of examples of novel counterintuitive findings we obtained from a case study in a health care application, as well as other examples from the literature

Intelligent LED Light

Cílem bakalářské práce je navrhnout a realizovat prototyp inteligentního LED osvětlení s možností míchání barev studené bílé, teplé bílé, červené, zelené a modré barvy. Vytvořit komunikaci, ovládácí jednotky včetně W(LAN) jednotky, která bude umožňovat komunikaci mimo tuto uzavřenou sběrnici. V práci je prvně popsáno světlo a jeho historie. Návrh samotného zařízení se skládá z 3D modelu prototypu LED osvětlení zabudovaného ve stropě a následného výběru konkrétních použitých obvodů. Při návrhu bylo dbáno na nedostatky dnešních chytrých elektroinstalací. V závěru práce je popsána problematika ruční osazení desek plošných spojů a výsledky měření navržených LED budičů.The aim of the bachelor thesis is to design and implement a prototype of intelligent LED lighting with the possibility of mixing cold white, warm white, red, green and blue colours. To create communication, control units including a W(LAN) unit that will allow communication outside this closed bus. This thesis is the first to describe light and its history. The design of the device itself consists of a 3D model of a prototype LED light embedded in the ceiling, followed by the selection of the specific circuits used. In the design, the shortcomings of today’s smart wiring systems were taken into account. The thesis concludes with a description of the hand-fitting of the circuit boards and the measurement results of the designed LED exciters.