| 摘要 |
The invention relates to devices of home automation, in particular to fire and intruder alarms, and may also be used for dustiness monitoring, detecting torches in methane burning, oil-containing products, etc. Further, said device may be used for control of parameter violation, as a displacement pickup, as a pyrometer, a spectrum absorption sensor. The technical inventive task is aimed at widening functional abilities, namely, burning detection of torches, dustiness, displacement, temperature measurement, spectrum absorption monitoring for conditions of heavy outer illumination-disturbance that is at open air operation. For solving the assigned task there proposed a multi-functional device of environmental monitoring comprising a light emitter and a light detector with operating wavelength λ=0,95-1,05 mkm, a power block with Γ-shaped filter, an amplifier of receiving signal, characterized in that a digital to analog converter and a current control stabilizer are provided with following connections: the light detector output via the receiving signal amplifier proceeds to a microcontroller signal input, the first analog output of which via a generator of the output signal of the first bus bar is connected to the positive output of the power block and via Γ-shaped RC filter with the light emitter anode, and by the second bus bar to the negative output of the power block, the second digital microcontroller output via the digital to analog converter is connected to the light detector cathode via the current control stabilizer, wherein a LED of the same type is used for both the light emitter and the light detector. |
