Status in source: mandatory.
Technical details
{
"smi_kind": "OBJECT-TYPE",
"definition": [
"signatureAlgorithm",
"OBJECT-TYPE",
"SYNTAX",
"INTEGER",
"{",
"other",
"(",
"1",
")",
",",
"leastSquares",
"(",
"2",
")",
",",
"absoluteSum",
"(",
"3",
")",
"}",
"ACCESS",
"read-write",
"STATUS",
"mandatory",
"DESCRIPTION",
"\" <Definition> This object defines the algorithm used to determine the best match between the sampled and historical data. A value of other signifies that the algorithm is manufacturer specific. The leastSquares best match is the signature with the least sum of the squared differences. DIF = 1N ( W x (Signature – Sample) )^2 where DIF = difference N = number of detectors W = weighting (signatureWeightingValue) Signature = signatureHistoricalDetectorVolume + signatureHistoricalDetectorOccupancy Sample = sensorSourceNormalizedVol + sensorSourceNormalizedOcc The absoluteSum best match is the signature with the least sum of the differences. DIF = | 1N (W x Signature) – 1N (W x Sample) | where DIF = difference N = number of detectors W = weighting (signatureWeightingValue) Signature = signatureHistoricalDetectorVolume + signatureHistoricalDetectorOccupancy Sample = sensorSourceNormalizedVol + sensorSourceNormalizedOcc Note: A detector indicating a fault condition shall not be taken into consideration. <Object Identifier> 1.3.6.1.4.1.1206.4.2.10.21.3.1.4\"",
"DEFVAL",
"{",
"leastSquares",
"}",
"::=",
"{",
"signatureConfigurationEntry",
"4",
"}"
],
"syntax_tree": [
[
"SimpleSyntax",
"INTEGER",
[
"enumSpec",
[
[
"other",
1
],
[
"leastSquares",
2
],
[
"absoluteSum",
3
]
]
]
],
null,
[
"MaxAccessPart",
"read-write"
],
[
"Status",
"mandatory"
],
[
"DESCRIPTION",
"<Definition> This object defines the algorithm used to determine the best match between the sampled and historical data. A value of other signifies that the algorithm is manufacturer specific. The leastSquares best match is the signature with the least sum of the squared differences. DIF = 1N ( W x (Signature – Sample) )^2 where DIF = difference N = number of detectors W = weighting (signatureWeightingValue) Signature = signatureHistoricalDetectorVolume + signatureHistoricalDetectorOccupancy Sample = sensorSourceNormalizedVol + sensorSourceNormalizedOcc The absoluteSum best match is the signature with the least sum of the differences. DIF = | 1N (W x Signature) – 1N (W x Sample) | where DIF = difference N = number of detectors W = weighting (signatureWeightingValue) Signature = signatureHistoricalDetectorVolume + signatureHistoricalDetectorOccupancy Sample = sensorSourceNormalizedVol + sensorSourceNormalizedOcc Note: A detector indicating a fault condition shall not be taken into consideration. <Object Identifier> 1.3.6.1.4.1.1206.4.2.10.21.3.1.4"
],
null,
null,
null,
[
"DEFVAL",
"leastSquares"
]
]
}