摘要:
A computer implemented method, apparatus, and computer usable program code for exchanging process model data between process authoring tools in a process management system. A set of information requirements for exchanging the process model data between process authoring tools using different process model exchange formats within the process management system is identified. A definition of a common process model exchange format is extended to include a set of common objects using the set of information requirements to form a common process model exchange format. The set of common objects are supported between a source process authoring tool and a target process authoring tool in the process authoring tools. An output file is generated using the common process model exchange format. The common process model exchange format is compatible with a process model exchange format used by the target process authoring tool.
摘要:
The present invention is a diagnosis and testing system for a temperature control system which includes a communication bus, a control processor, and a service thermostat. The communication bus is coupled to substantially all of the components of the system. The control processor initiates communication between components by sending a bus address over the bus. The control processor includes an address decoder for recognizing various bus address signals, including a normal thermostat bus address and a service thermostat bus address. The service thermostat has a switch, a processor, and a bus interface unit. The switch selects the operating mode of the service thermostat, e.g. either normal or service modes. The bus interface unit communicates over the bus for the service thermostat processor. The service thermostat processor operates the service thermostat and is adapted to communicate over the bus using a bus address according to the operating mode which is determined by the switch.
摘要:
The present invention involves a two stage furnace and a method of controlling the fans. In the furnace, a high pressure switch indicates whether sufficient air is present to support high combustion. Normally the furnace operates at one of the combustion settings. The circulator fan operates at the high speed setting when the high pressure switch indicates that sufficient air is present for high combustion, and operates at the low speed setting when the high pressure switch indicates that insufficient air is present for high combustion.
摘要:
A thermostat for a variable speed temperature control system. The thermostat has a processor for determining a utilization ratio to drive the temperature control system. The processor also drives a display which graphically exhibits the utilization ratio.
摘要:
The present invention is a furnace control system responsive to a circulator fan motor fault condition. Upon detection of the fault, the control determines a first time period which is required to activate the temperature limit switch of the furnace by continuous operation of the gas burner and a second time period which is required for the plenum to dissipate sufficient heat to deactivate the temperature limit switch. After determining the first and second time periods, the furnace control operates the burners for a fraction of the first time period and then allows the heat exchangers to cool for the second time period until the circulator fan motor fault is corrected or the demand for heat ceases.
摘要:
The present invention involves a two stage furnace and a method of warming its heat exchanger. The furnace includes a gas valve with low and high combustion settings, and inducer and circulator fans with low and high speed settings. When a call for heat is present, the inducer fan and gas valve operate at high. After a heat on delay period, the circulator fan operates at low speed to provide an initial warm stream of air from the furnace.
摘要:
The present invention discloses a method of compensating for a restricted intake in a two stage furnace. The furnace includes low and high pressure switches for determining if sufficient air is present to support low and high combustion. When the furnace operates at high combustion, the state of the high pressure switch is monitored to determine if the high pressure switch has changed state for a predetermined amount of time such as 15 seconds. The inducer fan is switched to low when insufficient air for high combustion has been indicated for such a predetermined time. If the state of the low pressure switch indicates that insufficient air is available for low combustion, then the inducer is turned on high.
摘要:
The present invention discloses a two stage furnace control. The control includes a gas valve, an ignitor, a low pressure switch, a high pressure switch and a control unit for enabling the inducer fan, the circulator fan, the ignitor, and the gas valve. The gas valve is coupled in series with the low pressure switch, the high pressure switch, and the power source whereby the low and high pressure switches directly control supply of electric power to the gas valve.
摘要:
A grain drying and conditioning apparatus having a housing with an outer pervious skin with impervious end walls, air inlet, grain inlet, grain outlet and air exhaust duct structures connected thereto has air pervious walls which are spaced within the structure for confining a column of grain to be dried. A blower and heater mechanism is also connected to the housing for causing heated air to be forced through a first zone of the column of grain in one direction to heat and extract moisture therefrom and simultaneously causing air for cooling the grain to be pulled through a second zone of the grain column in an opposite direction, or, by simple adjustments, to be pushed in the same direction as the flow of the heated air. A plenum chamber is formed between the innermost of the pervious walls, the air duct structure, and a rear bulkhead wall opposite the air duct structure; an adjustable plenum divider mechanism is provided between the innermost of the pervious walls and the air duct structure in the plenum chamber for selectively dividing the plenum chamber into a first and a second section for the purpose of optimizing the heating and cooling of the grain in the first and second zones, or for combining both zones of the plenum chamber for optimum heated air drying in the entire structure.Air recycling structure and specific air control devices for regulating the volume of exhaust air versus recycled air in the exhaust areas of the dryer is provided for blending unsaturated exhaust heated air which was forced through the lower portion of the first zone (drying zone) of the grain column area by pressure with incoming cooling air drawn through the second zone (cooling zone) of the grain column area by suction to save the energy in such heated air.