Smart Rescue Device(ARD)
SMART RESCUE (ARD):
Smart Rescue is basedon Intelligent Micro Controller with Integrated Circuits and Power MOSFETS / IGBTS.
Operation:
The Smart Rescue comprises of three-phase low voltage low frequency to the motor and single phase for brake and door drive, with switch mode power supply for batteries to boost and float charging .when power fails ARD will detect and will start The lift In Slow speed checking all safeties with load sensing to the nearest landing and door will open.
Technical Specification:
| Technology | Micro Controller Based System |
| Battery Power Supply | 12X4=48V DC |
| Type of Battery | Sealed Maintenance Free (SMF) |
| Inverter Frequency | 5 Hz |
| Inverter Output Voltage | 32V AC, 3 phase |
| Cooling System | Natural Air Cooling |
TECHNOLOGY INTRODUCED
- AFTER POWER FAIL THE ELEVATOR WILL GO TO THE NEARSET LANDING AND PASSANGER WILL BE RESCUED
- MAIN PROCESSER CONSIST OF 8 BIT NANO WATT TECHNOLOGY MICROCONTROLLER (PIC SERIES) WITH HIGH SPEED OPERATION HAS INBUILT 3 PHASE GENERATION ALONG WITH PHASE SHIFT,DADBAND TIME FOR SWITCHING DEVICE AND ACCURATE ADC CALIBRATION FOR LOAD SENSING WHICH IS BEING PROGRAMMED IN A SINGLE CHIP AND DOES NOT REQUIRE ANY ADDITIONAL PERIFERAL DEVICE
- BRAKE KNOWN AS TORQUE CONTROL MEANS UNLESS THERE IS SOME CURRENT FLOWING FROM THE MOTOR THEN ONLY BRAKE WILL ENERGISE AS A SAFETY PRECAUTION
- AC CONTACTORS ARE USED VIA SINGLE PHASE GENERATOR THROUGH STEP UP MODE
- NORMAL POWER ACTIVE MODE ARD IS COMPLETLY OFF SO ENERGY IS SAVED FROM BATTERIES WHICH IMPROVES RELIABILTY
- FOR BATTERY SMPS CHARGER IS USED, WHICH KEEPS BATTERY ACTIVE.ITFLOAT AND BOOST CHARGES WHICH INCREASE BATTERY LIFE