Cooling system prefailure detection system and method
AssigneeOneEvent Technologies, Inc.
InventorsBrett Bodenburg, Kurt Joseph Wedig, Daniel Ralph Parent
Life of this patent
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Abstract
A system for and method of monitoring cooling system parameters where the system identifies characteristic behaviors of the cooling system and establishes limits that identify when a parameter or parameters indicate that the cooling system is experiencing a failure or is predicted to experience a failure in the future. The system includes a processor, memory and instruction that when executed by the processor, perform steps to detect actual failures or predict future failures of the cooling system being monitored.
Claims19
A system for monitoring a cooling system comprising:
- a processor;
- a memory;
- a sensor associated with the cooling system;
- and
- an alert transmission device;
- the memory comprising instructions that when executed by the processor, cause the processor to:
- receive a plurality of data points from the sensor over a first period of time;
- determine a plurality of peak cycles where data points are above a predetermined threshold;
- determine a peak value measured during each of the plurality of peak cycles;
- calculate an empirical cumulative distribution function for the calculated peak cycles;
- generate an alert indicating a potential failure of the cooling system when the cumulative probability of a peak cycle time exceeds a predetermined period of time;
- and
- transmit the alert using the alert transmission device.
A method of monitoring a cooling system comprising:
- receiving a plurality of data points from a sensor over a period of time;
- determine a plurality of peak cycles where data points are above a predetermined threshold;
- determine a peak value measured during each of the plurality of peak cycles;
- calculate an empirical cumulative distribution function for the calculated peak cycles;
- sort the peak cycle in ascending time order and establish a maximum threshold as a percentage of the cumulative probability of peak cycle times;
- generating an alert indicating a potential failure of the cooling system when the cumulative probability of a peak cycle time exceeds a predetermined period of time;
- and
- transmitting the alert to an alert reporting system.
A system for monitoring a cooling system comprising:
- a processor;
- a memory;
- a temperatures sensor associated with the cooling system;
- a door position sensor;
- and
- an alert transmission device;
- the memory comprising instructions that when executed by the processor, cause the processor to:
- receive a first plurality of data points from the sensor over a first period of time;
- determine a normal duration of peak temperature cycles found in the first plurality of data points from the sensor;
- receive a second plurality of data points from the sensor over a second period of time;
- identify at least one peak temperature cycle in the second plurality of data points,
- compare the least one peak temperature cycle in the second plurality of data points with the determined normal duration of the peak temperature cycles to identify a divergence from the normal duration of the peak temperature cycles;
- determine if a defrost cycle occurred during the second plurality of data points;
- if no defrost cycle occurred during the second plurality of data points, generate an alert indicating a potential failure of the cooling system;
- and
- transmit the alert using the alert transmission device.
Dependencies are inferred from the claim text.