| 摘要 |
FIELD: information technology. ^ SUBSTANCE: apparatus has n reference object image converters, a channel selector, a memory and code comparison unit, a delay unit, two AND elements, an image code generating unit, a control unit, an output unit, an arithmetic unit, a loop length measuring unit, a loop selection unit, a memory unit, a code analysis unit, an adder unit, a register, a comparator unit, three switches, a decoder, a bidirectional counter, a digital inverter and a clock pulse generator. ^ EFFECT: broader functionalities of the apparatus owing to continuous monitoring of the degree of smokiness of the environment and conducting periodic automatic diagnosis in order to detect changes in the parameters occurring during operation and defects of the detecting elements of the apparatus which are in contact with the environment. ^ 4 dwg |
