| Aiming at the status of low degree of automation, poor real-time of scraper conveyordecelerator monitoring system, a new method of scraper conveyor decelerator onlinemonitoring is proposed, and developed a monitoring system, realized the online monitoring ofhigh and low speed of scraper conveyor decelerator shaft temperature, oil temperature and oillevel of both the big and small oil tanks.Hardware part of monitoring system is consisted of signal acquisition module,single-chip microcomputer control module, data transmission and upper desk module. Theultrasonic sensor is used to collect the oil level signal of both the big and small oil tanksthrough non-contacting way. Infrared temperature sensor is used to collect the tempera ture ofbig and small oil tanks, high and low speed shaft through non-contact signal acquisitionmethod. Main control chip are consisted of ATmega8and its peripheral circuit to realize thecontrol of all signal acquisition modules. The serial part communication between lowercomputer and upper computer of data transmission module is realized by RS232.Software part of monitoring system is developed by ICCAVR compiler, which isdesigned specifically for AVR microcontroller. Data acquisition and data processing programare designed according to the communication protocol.Upper computer monitoring interfacewas designed by VC++software, realized the function of the real time data display,temperature alarm,data storage and historical data inquiry, etc.The topic applied the non-contact signal acquisition method to online monitoring systemof scraper conveyor decelerator, effectively improved the flexibility and automation ofmonitoring system. The experimental results show that the monitoring system has goodreal-time performance, accuracy and reliability, etc. |
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