摘要:
Outlier identification is employed to detect abnormally high or low energy use in a building. The utility use is measured periodically throughout each day and the measurements are grouped according to days that have similar average utility consumption levels. The data in each group is statistically analyzed using the Generalized Extreme Studentized Deviate (GESD) method. That method identifies outliers which are data samples that vary significantly from the majority of the data. The degree to which each outlier deviates from the remainder of the data indicates the severity of the abnormal utility consumption denoted by that outlier. The resultant outlier information is readily discernable by the building operators in accessing whether the cause of a particular occurrence of abnormal utility usage requires further investigation.
摘要:
A system is provided for detecting abnormal consumption in one portion of a distributed water infrastructure while normal water usage occurs in another portion of the distributed water infrastructure. The system may comprise at least one processor. The system may receive from at least one sensor associated with the distributed water infrastructure indications of regular water usage. The system may determine, from a plurality of indications received over a time period, a plurality of baseline water usage profiles. The system may receive from the at least one sensor a current water usage profile. The system may compare the current water usage profile with the plurality of baseline water usage profiles. The system may determine an abnormal water consumption based on the comparison between the current water usage profile and the plurality of baseline water usage profiles. The system may generate an abnormal water consumption signal when abnormal water consumption is determined.
摘要:
A method for dispensing fuel has features to prevent theft of fuel and also control maintenance of authorized vehicles. The system includes a portable memory unit which remains with each vehicle. The portable memory unit is removably connected to an on-board computer on the vehicle. The on-board computer senses certain vehicle conditions and changes through transducers carburetor settings. The on-board computer also writes into the portable memory unit a warning if any of the vehicle conditions exceed limits. At the fuel dispensing site, a data processing unit receives the portable memory unit to read from it coded information. A central processing unit is located at a central records site and connected to the remote processing unit for record storage. The remote processing unit reads from the portable memory unit a last mileage at which fuel was dispensed, and compares it to a current mileage entered by the operator into the remote processing unit. A next service mileage is also read by the remote processing unit and compared to the current mileage. If the current mileage exceeds a next service mileage or if warnings are read by the remote processing unit, the operator is notified to immediately take the vehicle to a maintenance facility for maintenance.
摘要:
A system is provided for tracking usage of a plurality of water appliances in a distributed water infrastructure. The system may comprise at least one processor. The system may receive, from a location in the distributed water infrastructure upstream of the plurality of water appliances, historical water usage measurements. The system may determine from the historical water usage measurements at least one unique water usage signature associated with each of the plurality of water appliances. The system may store in memory each at least one unique water usage signature for each of the plurality of appliances. The system may receive, from the location in the distributed water infrastructure upstream of the plurality of water appliances, current water usage measurements. The system may determine from the current water usage measurements at least one current water usage signature. The system may compare the current water usage signature with at least one of the unique water usage signatures stored in memory to determine a match. The system may, based on the signature match, ascertain an identifier of a water appliance in current use.
摘要:
A system is provided for determining from a location upstream of a plurality of water appliances, whether a specific water appliance is malfunctioning. The system may comprise at least one processor. The system may detect, from at least one sensor in a distributed water infrastructure upstream of the plurality of water appliances, a plurality of normal water usage profiles. The system may associate at least one of the plurality of normal water usage profiles with each of the plurality of water appliances. The system may store each of the plurality of normal water usage profiles in a manner associating each of the plurality of normal water usage profiles with an associated water appliance. The system may detect at least one current water usage profile. The system may compare the at least one current water usage profile with at least one of the stored normal water usage profiles to determine a corresponding identity of an associated water usage appliance and to determine if a substantial deviation exists between the stored normal water usage profile for the identified appliance and the at least one current water usage profile. The substantial deviation may be reflective of a potential malfunction in the associated water usage appliance. The system may initiate remedial action if the substantial deviation, reflective of a potential malfunction, is determined.
摘要:
An electronic sensing and allocation system is provided for a distributed water infrastructure containing a plurality of differing appliances. The system may comprise at least one processor. The system may receive, from at least one sensor upstream of the plurality of differing appliances, a plurality of signals indicative of water usage within the distributed water infrastructure. The system may extract, from the plurality of signals, first information identifying a volume of water usage of at least a first appliance. The system may attribute a first volume of water to a first category. The system may extract, from the plurality of signals, second information identifying a volume of water usage of at least a second appliance. The system may attribute a second volume of water to a second category, wherein a first rate schedule is applicable to the first category, and a second rate schedule, other than the first rate schedule, is applicable to the second category. The system may output a first indication of the first volume of water together with an indicator attributing the first volume of water to the first rate schedule, and output a second indication of the second volume of water together with an indicator attributing the second volume of water to the second rate schedule. The system may enable billing of the first and second volumes of water to a consumer at differing rates based on differing uses.
摘要:
A system is provided for determining operational states of specific categories of water appliances using a plurality of geographically distributed water sensors. The system may comprise at least one central processor. The system may receive water appliance usage data from the plurality of geographically distributed water sensors, where each water sensor is located upstream of a plurality of water appliances in an associated distributed water infrastructure, and where each water sensor is configured to collect data from an infrastructure inlet flow reflective of operation of at least one specific category of water appliance downstream of the water sensor. The system may compare the water appliance usage data from the plurality of geographically distributed water sensors to determine trends in operation of the at least one specific category of water appliance across a population. The system may output information about the trends in operation.
摘要:
An abnormal consumption detection system is provided with remote valve control for a distributed water infrastructure. The system may comprise an electronically controllable valve, a remote communication transmitter, a remote communication receiver, at least one sensor for measuring water flow information associated with the distributed water infrastructure, and at least one processor. The system may determine from the water flow information obtained from the at least one sensor a potential abnormal consumption associated with the distributed water infrastructure. The system may automatically close a valve, without human intervention, when the potential abnormal consumption is determined. The system may transmit, via the remote communication transmitter to a remote administrator, alert information about the potential abnormal consumption to enable an administrator to decide based on the transmitted information whether to reopen the valve. The system may receive from the administrator via the remote communication receiver a control signal to reopen the valve, despite the information about the potential abnormal consumption, and reopen the valve.
摘要:
A system is provided for detecting abnormal consumption in a distributed water infrastructure. The system may receive from at least one sensor associated with the distributed water infrastructure signals indicative of water usage in the distributed water infrastructure, and aggregate groups of signals to construct a plurality of time-based water event profiles, each water event profile containing a distribution of water usage indicators over time. The system may store a subset of the plurality of water event profiles in memory as normal water event profiles, and receive, from the at least one sensor, signals indicative of current water usage in the distributed water infrastructure. The system may construct, from the signals indicative of current water usage, at least one current water event profile, and compare the at least one current water event profile with normal water event profiles stored in the memory. The system may initiate remedial action if the at least one current water event profile does not substantially correspond to normal water event profiles stored in the memory.
摘要:
A system is provided for differentiating between overlapping water events in a distributed water infrastructure including a plurality of water appliances. The system may comprise at least one processor. The system may repeatedly measure at least one overall water usage indicator of the distributed water infrastructure, the at least one water usage indicator including at least one of an overall flow rate and an overall flow volume in the distributed water infrastructure. The system may detect, in the repeated measurements, a first sustained increase. The system may store in memory a first indicator of the first sustained increase. The system may attribute in memory the first sustained increase to a first water event in the distributed water infrastructure. The system may, during the first sustained increase, detect in the overall measurements a second sustained increase. The system may store in memory a second indicator of the second sustained increase. The system may attribute, in memory, the second sustained increase to a second water event in the distributed water infrastructure. The system may detect, following initiation of the first sustained increase and the second sustained increase, in the repeated measurements a decrease in the overall water usage indicator. The system may attribute to the decrease a third indicator. The system may compare the third indicator with at least one of the first indicator and the second indicator stored in memory to determine a substantial match and determine a cessation of at least one of the first water event and the second water event. The system may initiate an action based on the cessation determination.