发明名称 |
Rooftop package unit diagnostician |
摘要 |
A diagnostic system for an HVAC system includes a number of sensors used to measure the operation of the HVAC system. Sensor readings are measured by timing the delay between when a strobe signal is sent to a sensor and when an interrupt signal from the sensor is received. A device driver used to measure the sensor readings stores the sensor readings in pseudo-character device files, which are universally accessible by different subsystems of the diagnostic system. Based on the readings from these sensors, this diagnostic system is able to determine the operational status of the HVAC system and if an economizer in the HVAC system is operating properly.
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申请公布号 |
US6778945(B2) |
申请公布日期 |
2004.08.17 |
申请号 |
US20010020849 |
申请日期 |
2001.12.12 |
申请人 |
BATTELLE MEMORIAL INSTITUTE |
发明人 |
CHASSIN DAVID P.;PRATT ROBERT G.;REID LARRY DEAN |
分类号 |
F24F11/00;G05B23/02;(IPC1-7):G06F11/00 |
主分类号 |
F24F11/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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