MACHINE OR DEVICE MONITORING AND ALERT METHOD AND SYSTEM
First Claim
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1. A machine or device monitoring system, comprising:
- a monitor and alert unit configured to monitor a machine or device and produce an alert notification upon detection of a change of state, the monitor and alert unit comprising;
an operational state sensor, the operational state sensor generates signals based upon the change of state of the machine or device;
a signal conditioner, the signal conditioner receives and modifies signals generated by the operational state sensor; and
a comparator, the comparator compares amplitude of the modified signals with a predetermined amplitude trip point, the comparator generates a signal once the amplitude of the modified signal crosses the predetermined amplitude trip point for a predetermined time period to indicate the change of state of the machine or device being monitored; and
a device or system to produce an alert notification based upon the signal generated by the comparator and generate a signal indicative of the change of the state of the machine or device being monitored.
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Abstract
The present invention relates to methods and systems for monitoring of one or more machines or devices, such as washers and dryers, for a change of state and indicating when the change of state has occurred. In one aspect, the system comprises a monitor and alert unit which generates a signal indicative of the change of the state of the machine or device being monitored and a device or system to produce an alert notification based upon the signal. The monitor and alert unit includes an operational state sensor, a signal conditioner, and a comparator.
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Citations
39 Claims
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1. A machine or device monitoring system, comprising:
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a monitor and alert unit configured to monitor a machine or device and produce an alert notification upon detection of a change of state, the monitor and alert unit comprising; an operational state sensor, the operational state sensor generates signals based upon the change of state of the machine or device; a signal conditioner, the signal conditioner receives and modifies signals generated by the operational state sensor; and a comparator, the comparator compares amplitude of the modified signals with a predetermined amplitude trip point, the comparator generates a signal once the amplitude of the modified signal crosses the predetermined amplitude trip point for a predetermined time period to indicate the change of state of the machine or device being monitored; and a device or system to produce an alert notification based upon the signal generated by the comparator and generate a signal indicative of the change of the state of the machine or device being monitored. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31)
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32. A method of monitoring a change of state of a machine or device, comprising the steps of:
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connecting an operational state sensor to a machine or device, wherein the operational state sensor generates signals based upon change of states of the machine or device; conditioning the signals generated by the operational state sensor to form a moving average amplitude that is greater than an amplitude setting of a predetermined amplitude trip point when the machine or device is in operation; monitoring time periods after the moving average amplitude crosses the amplitude setting of the predetermined amplitude trip point to indicate the change of state of the machine or device being monitored, wherein an alert notification is produced when a change of state is detected and the new state is maintained for a pre-determined time period. - View Dependent Claims (33, 34, 35, 36)
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37. A machine or device monitoring system, comprising:
a monitor and alert unit configured to monitor a machine or device and produce an alert notification upon detection of a change of state, the monitor and alert unit comprising; an operational state sensor, wherein the operational state sensor generates signals based upon the change of state of the machine or device; a signal conditioner, wherein the signal conditioner receives and modifies signals generated by the operational state sensor; a comparator, the comparator compares amplitude of the modified signals with a predetermined amplitude trip point, the comparator generates a signal once the amplitude of the modified signal crosses the predetermined amplitude trip point for a predetermined time period to indicate the change of state of the machine or device being monitored; and an output. - View Dependent Claims (38, 39)
Specification