Monitoring system
First Claim
Patent Images
1. A monitoring system monitoring a response time counted from when information is sent until when a response to the information is received, comprising:
- a calculating unit calculating, with T(t−
1) as a response time value measured in the last monitoring, with T(t−
2) as a response time value measured in the last but one monitoring, with a as a weight value equal to or larger than 0 and equal to or smaller than 1, and with dt as a given limit value, the weighted average response time added with the limit value (T(t−
1)×
a+T(t−
2)×
(1−
a)+dt) to obtain a maximum response time value that can be judged as normal, and the weighted average response time subtracted with the limited value (T(t−
1)×
a+T(t−
2)×
(1−
a)−
dt) to obtain a minimum response time value that can be judged as normal;
a measuring unit measuring the response time; and
a judging unit judging whether or not the response time measured by the measuring unit satisfies
1) equal to or larger than the minimum response time value calculated by the calculating unit, the weighted average response time subtracted with the limited value (T(t−
1)×
a+T(t−
2)×
(1×
a)−
dt, and
2) equal to or smaller than the maximum response time value calculated by the calculating unit, the weighted average response time added with the limit value (T(t−
1)×
a+T(t−
2)×
(1−
a)+dt), both.
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Abstract
A monitoring system of the present invention achieves highly reliable switching control by having a monitored response time creating/calculating unit calculate a maximum value and a minimum value between which a response time is judged as normal from a response time of the last measurement and from a response time of the last but one measurement, and by having a monitored response time comparing unit set a range in which a response time is judged as normal in a manner that agrees with past response times.
17 Citations
12 Claims
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1. A monitoring system monitoring a response time counted from when information is sent until when a response to the information is received, comprising:
-
a calculating unit calculating, with T(t−
1) as a response time value measured in the last monitoring, with T(t−
2) as a response time value measured in the last but one monitoring, with a as a weight value equal to or larger than 0 and equal to or smaller than 1, and with dt as a given limit value, the weighted average response time added with the limit value (T(t−
1)×
a+T(t−
2)×
(1−
a)+dt) to obtain a maximum response time value that can be judged as normal, and the weighted average response time subtracted with the limited value (T(t−
1)×
a+T(t−
2)×
(1−
a)−
dt) to obtain a minimum response time value that can be judged as normal;
a measuring unit measuring the response time; and
a judging unit judging whether or not the response time measured by the measuring unit satisfies
1) equal to or larger than the minimum response time value calculated by the calculating unit, the weighted average response time subtracted with the limited value (T(t−
1)×
a+T(t−
2)×
(1×
a)−
dt, and
2) equal to or smaller than the maximum response time value calculated by the calculating unit, the weighted average response time added with the limit value (T(t−
1)×
a+T(t−
2)×
(1−
a)+dt), both. - View Dependent Claims (2, 3, 4)
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5. A recording medium storing a monitoring program for causing a computer to function as the following unit, the computer serving to monitor a response time counted from when information is sent until when a response to the information is received, the unit comprising:
-
a calculating unit calculating, with T(t−
1) as a response time value measured in the last monitoring, with T(t−
2) as a response time value measured in the last but one monitoring, with a as a weight value equal to or larger than 0 and equal to or smaller than 1, and with dt as a given value, the weighted average response time added with the limit value (T(t−
1)×
a+T(t−
2)×
(1−
a)+dt) to obtain a maximum response time value that can be judged as normal, and the weighted average response time subtracted with the limited value (T(t−
1)×
a+T(t−
2)×
(1−
a)−
dt) to obtain a minimum response time value that can be judged as normal;
a measuring unit measuring the response time; and
a judging unit judging whether or not the response time measured by the measuring unit satisfies
1) equal to or larger than the minimum response time value calculated by the calculating unit, the weighted average response time subtracted with the limited value (T(t−
1)×
a+T(t−
2)×
(1×
a)−
dt, and
2) equal to or smaller than the maximum response time value calculated by the calculating unit, the weighted average response time added with the limit value (T(t−
1)×
a+T(t−
2)×
(1−
a)+dt), both. - View Dependent Claims (6, 7, 8)
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9. A monitoring method for monitoring a response time counted from when information is sent until when a response to the information is received, comprising:
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calculating, with T(t−
1) as a response time value measured in the last monitoring, with T(t−
2) as a response time value measured in the last but one monitoring, with a as a weight value equal to or larger than 0 and equal to or smaller than 1, and with dt as a given value, the weighted average response time added with the limit value (T(t−
1)×
a+T(t−
2)×
(1−
a)+dt) to obtain a maximum response time value that can be judged as normal, and the weighted average response time subtracted with the limited value (T(t−
1)×
a+T(t−
2)×
(1−
a)−
dt)to obtain a minimum response time value that can be judged as normal;
measuring the response time; and
judging whether or not the response time measured by the measuring unit satisfies
1) equal to or larger than the minimum response time value calculated by the calculating step, the weighted average response time subtracted with the limited value (T(t−
1)×
a+T(t−
2)×
(1−
a)−
dt), and
2) equal to or smaller than the maximum response time value calculated in the calculating step, the weighted average response time added with the limit value (T(t−
1)×
a+T(t−
2)×
(1−
a)+dt), both. - View Dependent Claims (10, 11, 12)
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Specification