JP4129167B2 - Equipment abnormality reporting device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention monitors and records the operating status of water supply and distribution water supply, distribution, drainage equipment, industrial production equipment, sales data collection equipment, etc., and displays and records equipment malfunctions and abnormal conditions, as well as alarm signals. The present invention relates to a notification device that detects and detects a remote location.
[0002]
[Prior art]
Conventionally, only abnormalities that can be directly detected by a sensor such as a thermal relay, a water level gauge, or a fritted switch can be detected.
[0003]
[Problems to be solved by the invention]
An object of the present invention is to provide an equipment abnormality reporting device capable of detecting an abnormality of equipment that is difficult to detect directly with a sensor or the like and reporting the abnormality to a report destination.
[0004]
[Means for Solving the Problems]
The present invention includes an input unit that inputs an operation signal of a monitored facility having a plurality of pumps, a communication unit that reports an abnormality of the monitored facility to a report destination, a program for calculating calculated operation data using the operation signal, and the program An equipment abnormality reporting device having a CPU and a memory for executing a program has an abnormality judgment function for judging whether the calculated operation data is abnormal. The calculated operation data is calculated using an operation signal of the monitored equipment. a data operating time and operating frequency is, when the monitoring one operating time of the target equipment is longer than the set value, the difference between the operating time of said monitored one pump and other pumps of the equipment set When the value is equal to or greater than the value, an abnormality is reported in the case of a combination, and when one operation time of the monitored equipment is shorter than a set value, one pump and another pump of the monitored equipment When the number of operations is the same and the difference in operation time is longer than the set value, or the difference in operation time between one pump of the monitored equipment and the other pump every hour or every day is shorter than the set value, An equipment abnormality reporting device characterized in that an abnormality is reported in any case when the operation signals of the other pump and the other pump are simultaneously ON .
[0006]
In the present invention, the abnormality determination function is a facility abnormality notification that determines whether or not there is an abnormality by comparing the calculated operation data calculated using the operation signals of the pumps of the monitoring target facilities having a plurality of pumps. Device.
[0007]
Furthermore, the present invention is a facility abnormality notification device that determines that the abnormality determination function is abnormal when the operation of the pump of the monitoring target facility violates the operation conditions stored in the memory.
[0009]
DETAILED DESCRIPTION OF THE INVENTION
An embodiment of the present invention will be described.
An embodiment of the equipment abnormality notification device of the present invention will be described with reference to FIGS. FIG. 1 is an explanatory diagram of an example of facility monitoring using the facility abnormality notification device of the embodiment. FIG. 2 is a chart for explaining an example of a typical driving daily report at the normal time. FIG. 3 is a chart for explaining an example of a daily operation report when a blockage occurs in the drainage path. FIG. 4 is a chart for explaining an example of a daily operation report when an abnormality occurs in the check valve. FIG. 5 is a chart for explaining an example of the daily driving report when the jumping operation is performed. FIG. 6 is a chart for explaining an example of a daily operation report when one manhole pump is not operating at all. FIG. 7 is a chart for explaining an example of an operation daily report when two manhole pumps are operating simultaneously.
[0010]
Examples will be described. As shown in FIG. 1, the equipment abnormality reporting device 1 of this embodiment is housed in, for example, a manhole control panel 2 and connected to a manhole pump 31 of a manhole 3 that is a monitoring target equipment. Is connected to the report destination 5 via. The manhole 3 includes a manhole pump 31, a float switch 32, a check valve 33, a pressure feeding pipe 34, an introduction pipe 35, an iron lid 36, and the like.
[0011]
The equipment abnormality reporting device 1 of the embodiment is composed of, for example, a personal computer, and inputs an operation signal for the monitored equipment, a communication section for reporting the abnormality of the monitored equipment to the report destination, and calculated operation data using the operation signal. A calculation program, a CPU for executing the program, and a memory are provided, and an abnormality determination function for determining whether the calculated operation data is abnormal is provided. The abnormality determination function can determine that there is an abnormality by comparing the calculated operation data with the set value data relating to the operation stored in the memory. The abnormality determination function can determine whether there is an abnormality by comparing the calculated operation data calculated using the operation signals of the pumps of the monitoring target equipment having a plurality of pumps. Then, the abnormality determination function can determine that an abnormality occurs when the operation of the pump of the monitoring target equipment violates the operation condition stored in the memory. The calculated operation data is data on the operation time or the number of operations calculated using the operation signal of the monitoring target equipment.
[0012]
The equipment abnormality reporting device 1 monitors the operation signal of the manhole pump 31 input to the input contact, and measures the operation time and the number of operations of the manhole pump 31 using the operation signal. Abnormalities can be detected by comparing the measured operating time and the number of times of operation with preset values and the operating time and the number of times of operation of a plurality of pumps. When an abnormal operation time or number of operations is detected, an alarm is sent to a remote alarm destination via a telephone line using a modem.
[0013]
A typical manhole pump facility includes an introduction pipe 35 into which sewage flows, two manhole pumps (31) for draining sewage, a check valve 33 for preventing backflow of drained sewage, and water for feeding sewage to a treatment plant. A pressure feed pipe 34, a water level meter (not shown) for measuring the level of sewage accumulated in the manhole, a float switch 32 for detecting the operating water level of the manhole pump 31, an abnormally high water level, and the like are included.
[0014]
An example of a typical daily operation report of a manhole pump at normal time is shown in FIG. A typical operation pattern of a manhole pump at normal time is as follows.
(1) Sewage accumulates to the operating water level over several hours.
(2) Operate one of the two manhole pumps for about 2 to 3 minutes to drain the sewage.
(3) Two manhole pumps are operated alternately.
Therefore, the operation time of the manhole pump is about 2 to 3 minutes, and once it is operated once, it is normal that there is an interval of 1 hour or more until the next operation. In addition, since the manhole pumps are operated alternately, the operation time and the number of operations of the two manhole pumps are almost the same.
[0015]
FIG. 3 shows an example of a daily operation report when a blockage due to dirt or the like occurs in a part of the drainage path. When the drainage path is blocked, drainage by the manhole pump is hindered, so that the operation time of the manhole pump becomes longer than usual. When completely closed, drainage cannot be performed at all, and the manhole pump may be in a continuous operation state. In this case, an abnormality is detected by any of the following or a combination thereof.
(1) One manhole pump operation time is over the set value (2) One hour manhole pump operation time is over the set value (3) One day manhole pump operation time is over the set value [0016]
FIG. 4 shows an example of the daily operation report when an abnormality occurs in the check valve and the sewage flows backward. When an abnormality occurs in the check valve, the drained sewage flows back and returns after stopping the pump, so that drainage and backflow are repeated, increasing the number of operations. In addition, even when the backflow is small, sewage is collected earlier than normal, and the interval until the next manhole pump operation is shortened, so that the number of operations is also increased. In addition, when drainage by the No. 2 manhole pump is performed in a state where the check valve for the No. 1 manhole pump is abnormal, the drained sewage also flows back from the check valve for the No. 1 manhole pump. The driving time per operation becomes longer. Since the manhole pump operates alternately, normal operation time and abnormal operation time appear alternately. In such a case, an abnormality is detected by any of the following or a combination thereof.
(1) One manhole pump operation time is over the set value (2) One hour manhole pump operation time is over the set value (3) Daily manhole pump operation time is over the set value (4) No. 1 /No.2 manhole pump operating time difference is more than the set value [0017]
FIG. 5 shows an example of the daily operation report when an abnormality occurs in the No. 1 manhole pump and the No. 2 manhole pump is jumping. In this case, two manhole pumps that should be operated alternately always operate continuously, and the operation time of the No. 1 manhole pump is extremely short. In such a case, an abnormality is detected by any of the following or a combination thereof.
(1) The operation time for one manhole pump operation is shorter than the set value.
(2) The number of operation of No. 1 / No. 2 manhole pump every hour is the same.
(3) The operating time difference between No. 1 and No. 2 manhole pumps exceeds the set value. [0018]
FIG. 6 shows an example of an operation daily report when an abnormality occurs in the No. 1 manhole pump and the No. 1 manhole pump is not operated at all. In this case, the operation time and the number of operations of the No. 1 manhole pump are 0, and only the No. 2 manhole pump is operating. In such a case, an abnormality is detected by any of the following or a combination thereof.
(1) Difference in operating time of No. 1 / No. 2 manhole pump exceeds set value (2) Difference in operating frequency of No. 1 / No. 2 manhole pump exceeds set value (3) No. 2 manhole pump operates more than once No. 1 manhole pump has been run 0 times
FIG. 7 shows an example of a daily operation report when an abnormality occurs in the alternate operation control device and two manhole pumps are operating simultaneously. In this case, since the two manhole pumps always move simultaneously, the number of operations and the operation time per hour are the same. In such a case, an abnormality is detected by any of the following or a combination thereof.
(1) The operation time for one manhole pump operation is shorter than the set value.
(2) The difference in operating time of No. 1/2 manhole pump every hour is less than the set value.
(3) The difference in operating time of the No. 1 / No. 2 manhole pump every day is less than the set value.
(4) The operation signals of No. 1 and No. 2 manhole pumps are ON at the same time.
[0020]
In addition to the above, an abnormality in the manhole pump equipment often appears as an obstruction of drainage, and as a result, an abnormality can be detected from an abnormality in the operation time and the number of operations of the manhole pump.
[0021]
The equipment abnormality notification device described in the above embodiment can be configured as follows.
(1) As an input unit, a reporting device that can input the operation time and the number of operations from an external counter or PLC by analog input or BCD input.
(2) As an input unit, a notification device that obtains an operation signal, an operation time, and the number of operations from an external counter or PLC by communication.
(3) A reporting device that reports using a communication unit such as a built-in or external Ethernet (registered trademark), wireless communication device, mobile phone communication device, cable TV communication device, or the like.
[0022]
【The invention's effect】
ADVANTAGE OF THE INVENTION According to this invention, the abnormality report apparatus of the equipment which can detect abnormality of the installation difficult to detect directly with a sensor etc. and can report abnormality to a report destination can be obtained.
[Brief description of the drawings]
FIG. 1 is an explanatory diagram of an example of facility monitoring using the facility abnormality notification device of an embodiment.
FIG. 2 is a chart for explaining an example of a typical driving daily report at normal time.
FIG. 3 is a chart for explaining an example of a daily operation report when a blockage occurs in the drainage channel.
FIG. 4 is a chart for explaining an example of a daily operation report when an abnormality occurs in the check valve.
FIG. 5 is a chart for explaining an example of a daily driving report when the jumping operation is performed.
FIG. 6 is a chart for explaining an example of a daily operation report when one manhole pump is not operating at all.
FIG. 7 is a chart for explaining an example of an operation daily report when two manhole pumps are operating simultaneously.
[Explanation of symbols]
1 Equipment abnormality reporting device 2 Manhole control panel 3 Manhole 31 Manhole pump 32 Float switch 33 Check valve 34 Pressure feed pipe 35 Introduction pipe 36 Iron lid 4 Telephone line network 5

Claims (4)

An input unit for inputting an operation signal of a monitoring target facility having a plurality of pumps, a communication unit for reporting an abnormality of the monitoring target facility to a report destination, a program for calculating calculated operation data using the operation signal, and executing the program In equipment abnormality reporting device with CPU and memory,
It has an abnormality determination function for determining whether the calculated operation data is abnormal, the calculated operation data is data of the operation time and the operation frequency calculated using the operation signal of the monitoring target equipment,
When the one operation time monitored equipment is longer than the set value, the time difference between the operating time of the one pump and the other pump monitored equipment is equal to or higher than a set value, an abnormality in the case of a combination of Report,
When one operation time of the monitored facility is shorter than a set value,
When the number of operations of one pump of the monitoring target equipment and the other pump match, and the difference in operation time is longer than the set value,
Or
When the difference between the operation time of one pump and the other pump every hour or day is shorter than the set value and the operation signal of the one pump and the other pump is simultaneously ON In such a case, an equipment abnormality reporting device characterized by reporting an abnormality. In the equipment abnormality reporting device according to claim 1,
The abnormality determination function is a facility abnormality notification device that determines the abnormality by comparing the calculated operation data with set value data relating to the operation stored in the memory . In the equipment abnormality reporting device according to claim 1 ,
The abnormality determination function is characterized by comparing the calculated operation data calculated using the operation signals of the pumps of the monitoring target equipment having a plurality of pumps with each other to determine whether the abnormality is present. . In the equipment abnormality reporting device according to claim 1 ,
The abnormality determination function is a facility abnormality notification device that determines that an abnormality occurs when the operation of the pump of the monitoring target facility violates the operation condition stored in the memory .

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