JP2000339574A - Remote monitoring device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a remote monitoring device of a master station which requests a slave station device placed at an observation spot for the observation data, receives the observation data from the slave device to record them, can reduce the working burden of an operator against the untransmitted observation data (owing to any failure in transmission lines) and also can promote the reduction of labor. SOLUTION: If the observation data are not inputted from a slave station device within a fixed time in an observation data reception processing and an observation data decision device 12 decides the untransmitted observation data, an untransmitted observation data supply processing part 14 is started to calculate the untransmitted observation data supply value from all observation data stored in an observation data storage part 13. Then the relevant data are stored in the part 13 and then printed out.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a remote monitoring apparatus applied to various observation facilities such as dam information processing facilities and agricultural water management facilities.

[0002] The present invention relates to a remote monitoring device on the master station side that requests observation data from a slave station device located at an observing place, receives observation data from the slave station device according to the request, and records the data.

[0003]

2. Description of the Related Art Rainfall monitoring and river water level monitoring are important tasks in dam information processing facilities, agricultural water management facilities, and the like. A remote monitoring system called a telemeter system is applied as a means for realizing these various facilities. This type of system usually includes a remote monitoring device (hereinafter simply referred to as a slave station device) on the slave station side installed at a plurality of observation points in an observation target area, and wirelessly or publicly communicates observation data of each slave station device. Remote monitoring device on the master station side via a predetermined transmission line such as a line or a dedicated communication line (hereinafter simply referred to as master station device)
Each slave station device constantly observes the rainfall at the installation point, the water level of the river, etc., responds to the request from the master station device, and transmits the latest observation data at that time to the above transmission line. Via the master station.

[0004] Here, if any failure occurs in the transmission line, the observation data is not sent from the slave station device to the master station device in response to a request from the master station device, resulting in a missing measurement.

Conventionally, when this missing data occurs, the operator estimates and estimates the observed value based on experience, measured values before and after, etc. to compensate for the missing data, and performs the missing data based on the estimated value. (See FIG. 5).

Therefore, conventionally, every time a missing measurement occurs, the operator must compensate for the missing measurement, so that the operator is burdened with a large work load. Was. Further, the above-mentioned missing measurement compensating work has been a problem in saving labor.

[0007]

As described above, conventionally, every time a missing measurement occurs, the operator must compensate for the missing measurement. There was a disadvantage that much time and effort was required for the refilling operation. Further, the above-mentioned missing measurement compensating work has been a problem in saving labor.

[0008] The present invention has been made in view of the above circumstances,
Reduces the work load of the operator for missing data in the remote monitoring device at the master station that requests observation data from the slave station device located at the observation site and receives and records observation data from the slave station device according to the request. It is an object of the present invention to provide a remote monitoring device capable of promoting labor saving.

[0009]

SUMMARY OF THE INVENTION The present invention relates to a remote monitoring device on the master station side which requests observation data from a slave station device located at an observing place and receives and records the observation data from the slave station device in accordance with the request. In order to reduce the work load of the operator for the missing data, there is a processing means to obtain the interpolated value by the interpolation or the guess using the observed value that can be normally observed for the transient missing data. It is characterized by.

That is, according to the present invention, in a remote monitoring device that receives and records observation data from a slave station device located at an observation site, a means for determining the presence or absence of a missing data is determined by the above means. And processing means for calculating missing correction values based on a plurality of already input observation data and using the corrected values to compensate for missing data.

Further, the present invention provides an observation data receiving means for receiving observation data transmitted from a slave station device, and each time the observation data receiving means receives observation data, a plurality of continuous observation data including the observation data. Update storage means for storing the missing data, observation data determination means for determining the presence / absence of a missing measurement, and missing data compensation when the observation data determination means determines a missing data using the observation data stored in the update storage means. Missing value compensation means for calculating a value.

Further, according to the present invention, in the above-mentioned remote monitoring apparatus, at least the missing correction value obtained by the missing correction means is stored in the updating storage means, or a unique mark is added to the missing correction value. It is characterized by having means for printing out.

Further, according to the present invention, in the above-mentioned remote monitoring apparatus, processing means for calculating by a least square method using a plurality of past observation data stored in a storage means, or a previous and next time storage means stored in the storage means. Processing means for calculating by interpolation using observation data, or processing means for searching for a similar pattern from a set pattern stored in the storage means and estimating missing correction values, or estimating missing correction values from other stored data It is characterized in that the missing measurement compensating means is realized by using processing means based on empirical rules.

As described above, in the remote monitoring device of the master station, which requests observation data from the slave station device located at the observation site, receives and records the observation data from the slave station device in accordance with the request, and temporarily records the data. The work load on the operator for the missing measurement can be reduced by adopting a configuration that has a processing means for acquiring the interpolated value by interpolating or estimating using the observed value that can be normally observed for the missing measurement. It is possible to provide a remote monitoring device having a function of compensating for missing data, which can promote labor saving.

[0015]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a block diagram showing an embodiment of the present invention in which a parent station having a missing data correction function for requesting observation data from a slave station device installed at an observing place, receiving observation data from the slave station device in accordance with the request, and recording the data. It is a block diagram showing composition of an important section of a station side distant monitoring device.

In FIG. 1, reference numeral 11 denotes an observation data reception processing unit which takes in observation data sent from a slave station device in response to a request to the slave station device.

Reference numeral 12 denotes an observation data determination device for determining whether or not the observation data has been received by the observation data reception processing unit 11. Here, for convenience of explanation, the observation data is determined by the slave station device within a predetermined time in response to a request. When no data is entered,
The processing means for simply determining “missing” will be taken as an example. However, in the actual machine, when observation data is not input from a slave station device within a certain period of time in response to a request, a request is made only once, for example. When the observation data is not input from the slave station device within a certain period of time in response to the re-request (for example, retry only once), processing means such as first determining "missing" is used.

Reference numeral 13 denotes an observation data storage unit that stores a plurality of (N times) continuous observation data including the latest observation data each time the observation data reception processing unit 11 receives the observation data. Each time observation data is received, the observation data of the past five consecutive times including the data is updated and stored.

A missing data correction process 14 calculates a missing value correction value using the observation data stored in the observation data storage unit 13 when the “missing measurement” is determined by the observation data determination device 12. Here, when “missing measurement” is determined by the observation data determination device 12, the past five observation data stored in the observation data storage unit 13 is read out, and the missing data is determined by the least squares method. The compensation value is calculated, and a specific code indicating the missing compensation value is added to the missing compensation value and written to the observation data storage unit 13.

Reference numeral 16 denotes a print control unit for printing and recording observation data. Each time the observation data reception processing unit 11 receives the observation data, the observation data is read from the observation data storage unit 13 and printed out. On this occasion,
With respect to the supplementary data at the time of the missing data, the data is printed out in a specific printing form (for example, with an asterisk mark) in accordance with the specific code added to the supplementary data.

FIG. 2 is a flowchart showing a processing procedure of the remote monitoring apparatus having the missing measurement compensating function in the above embodiment.

FIG. 3 is a block diagram showing an example of a configuration of a monitoring system using the remote monitoring apparatus in the above embodiment. In the figure, reference numeral 100 denotes a remote station which becomes a master station (main station) in the monitoring system. A monitoring station 201 is a remote monitoring station that is a slave station (substation) installed at the observation site. Here, the remote monitoring station 100 serving as the master station is provided with a remote monitoring apparatus 10 having a missing measurement compensation function as shown in FIG. 1 and FIG. 4 described later.

FIG. 4 is a block diagram showing the overall configuration including the existing components of the remote monitoring apparatus 10 shown in FIG. 3, and the main control unit 10a shown in FIG.
The missing measurement compensation function as shown in FIG. In FIG. 4, the observation data transmitted from the slave station in accordance with the observation data request is received by the wireless device 20, demodulated by the modem, and then transmitted to the main control via the transmission control unit and the system bus. The data is received by the unit 10a (observation data reception processing unit 11 shown in FIG. 1), and is printed out by the printer 30 under the print control of the print control unit 16 through the processing procedure shown in FIG. At this time, the missing value compensation data is printed out (printed out), for example, by adding “*” to the first digit of the data value.

FIG. 5 is a diagram showing an example of compensation for missing data when a missing data has occurred. In the embodiment of the present invention, the missing data compensation processing unit 14 uses the missing data compensation processing unit 14 as the observation data storage unit 13.
In this case, the data is obtained by the least squares method using the past five observation data stored in the observation data storage unit 13.

Here, the missing measurement compensating processing operation in the embodiment of the present invention will be described with reference to the above-mentioned figures.

The observation data reception processing section 11 takes in the observation data sent from the slave station device in response to the request to the slave station device (steps S1 and S2 in FIG. 2).

In the observation data receiving process, when observation data is input from the slave station device within a predetermined time in response to the request, the observation data is stored in the observation data storage unit 13 (step S3 in FIG. 2). ), And printed out from the printer 30 shown in FIG. 4 under the control of the print control unit 16 (step S4 in FIG. 2). Here, the observation data storage unit 13
After the observation data for five times are stored, the oldest observation data is discarded every time the observation data is received by the observation data reception processing unit 11, and instead, the five consecutive observation data including the latest observation data received this time are replaced. The observation data of the time is always stored. Thus, the observation data storage unit 13
Each time new observation data is stored, the data content is updated, and a total of five consecutive observation data including the latest observation data is always stored.

In the above observation data receiving process,
In response to the request, when observation data is not input from the slave station device within a certain time and “missing measurement” is determined by the observation data determination device 12 (N in step S2 in FIG. 2), the missing data compensation processing unit 14 is started, a missing correction value is calculated using all the observation data stored in the observation data storage unit 13, the data is stored in the observation data storage unit 13, and printed out (step S5 in FIG. 2). , S3, S4).

Here, when the "missing measurement" is determined by the observation data determination device 12, the missing data compensation processing unit 14 reads out the past five observation data stored in the observation data storage unit 13, and The missing value is calculated by the least-squares method, and a specific code indicating the missing value is added to the missing value and written to the observation data storage unit 13.

The observation data stored in the observation data storage unit 13
The observation data (missing correction value) to which the specific code is added is printed out from the printer 30 shown in FIG. At this time, in the print output result of the printer 30, for example, an asterisk mark according to the specific code is added to the missing measurement compensation value to clearly indicate that the data is the missing measurement compensation value.

As described above, according to the embodiment of the present invention, when a missing data occurs in the observation data collection, the function of automatically compensating for the missing data is provided. An artificial operation can be remarkably reduced.

In the above-described embodiment, when the observation data determination unit 12 determines “missing measurement”, the missing data correction processing unit 14 stores the past data stored in the observation data storage unit 13. The five observation data are read out, and the missing data are calculated by the least squares method. However, the present invention is not limited to this. For example, a processing means for performing the interpolation by using the plurality of observation data stored in the storage means. Or a plurality of other times such as processing means for searching for a similar pattern from the set pattern stored in the storage means and estimating the missing correction value, or processing means based on an empirical rule for estimating the missing correction value from other stored data. A means for calculating the missing value correction value by data, calculation, etc. may be used.The point is that missing data is automatically calculated using past observation data, past and next observation data, or past observation data and sample data. Make up for It may be any configuration capable of realizing the processing functions.

In the above-described embodiment, when a missing measurement occurs, the missing measurement compensation value is stored in the observation data storage unit 13 and printed out in a specific printing form. When a measurement occurs, the missing correction value is stored in the observation data storage unit 1.
For example, a configuration in which the data is not stored in the storage unit 3 and is transmitted or stored in another storage unit, or a configuration in which only the printout is performed without storing the missing correction value may be employed.

As described above, in the remote monitoring device on the master station side, which requests observation data from the slave station device located at the observation site, and receives and records the observation data from the slave station device in accordance with the request, the temporary monitoring device is temporarily disabled. The work load on the operator for the missing measurement can be reduced by adopting a configuration that has a processing means for acquiring the interpolated value by interpolating or estimating using the observed value that can be normally observed for the missing measurement. , Can promote labor saving.

[0036]

As described above in detail, according to the present invention, the master station side which requests observation data from the slave station device located at the observation site, receives the observation data from the slave station device in accordance with the request, and records it. The remote monitoring device is configured to have a processing means for acquiring an interpolated value by interpolating or estimating using an observation value that can be normally observed for a transient missing measurement. Can reduce the work load on the operator, and can promote labor saving.

[Brief description of the drawings]

FIG. 1 is a block diagram showing the configuration of a remote monitoring device according to an embodiment of the present invention.

FIG. 2 is a flowchart showing a procedure of a missing measurement compensation process in the embodiment.

FIG. 3 is a block diagram showing a configuration of a monitoring system to which the remote monitoring device having a missing data correction processing function according to the embodiment is applied.

FIG. 4 is a block diagram showing a configuration of the remote monitoring apparatus shown in FIG. 3;

FIG. 5 is a diagram showing an example of missing data and compensation for missing data.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 ... Remote monitoring apparatus 11 ... Observation data reception processing part 12 ... Observation data judgment apparatus 13 ... Observation data storage part 14 ... Missing data compensation processing part 16 ... Print control part

Claims (4)

[Claims] In a remote monitoring device that receives and records observation data from a slave station device installed at an observation site, a means for determining the presence / absence of missing data; A distant monitoring device comprising: processing means for calculating a missing measurement compensation value based on a plurality of already input observation data and compensating for the missing measurement using the compensation value. 2. Observation data receiving means for receiving observation data sent from a slave station device, and each time observation data is received by said observation data receiving means,
Update storage means for storing a plurality of continuous observation data including the observation data; observation data determination means for determining the presence / absence of missing data; and updating storage when the observation data determination means determines a missing data. A remote monitoring device comprising: a missing data correction means for calculating a missing data correction value using the observation data stored in the means. 3. The system according to claim 2, further comprising means for storing at least the missing correction value acquired by the missing data correcting means in the update storage means, or printing out the missing data by attaching a unique mark to the missing data. Remote monitoring equipment. 4. The remote monitoring apparatus according to claim 2, wherein the missing measurement compensation means acquires the missing measurement compensation value by estimation or interpolation processing using the already input observation data.