JPS63127115A - Apparatus for controlling measured data - Google Patents

Abstract

PURPOSE:To eliminate incorrect reading, posting and calculation on an inexpensive system and to provide the function equal to that of an on-line data logger, by automatically processing the correction of collected data required due to meter reading time difference by a hand-held terminal and a personal computer. CONSTITUTION:A hand-held terminal 6 is used as a tool collecting data and has the functions of an operation key 4 for keying data and display device 5 of previous and current meter reading data and other functions. Then, the terminal 6 is connected to a personal computer 1 to automatically transmit data. Hereupon, on the basis of the ratio of the time difference from other meter reading time to meter reading time interval based on the meter reading time of standard meter reading, other meter reading data is automatically corrected to data equal to the reference data of the meter reading. By this method, simultaneous collection data equal to on-line data is obtained and the accurate calculation of a basic unit or the calculation of section allocation becomes possible.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a management device for measurement data such as various physical quantities and electric power consumption in factories and schools.

(Prior Art) Conventionally, as a method for energy management, firstly, there is a method in which all data is read manually, recorded, and then calculated manually.In this case, reading errors and transcription errors occur.

There were problems with calculation errors and labor was required. As shown in FIG. 2, there is a system in which the receiving section is automated using an online data logger, while data at secondary substations and other areas are manually collected and aggregated. In this case as well, the problem of manual labor remains. Thirdly,
There is a method to automatically import all data into an online data logger, but it is extremely expensive due to the cost of sensors, converters, and construction costs. Additionally, in the case of an existing facility, modification of the existing facility will be required. A handheld terminal was used for this type of system. Examples of the data processing system include a portable slip issuing machine disclosed in Japanese Patent Application Laid-open No. 56-68888 and a common axis examination recording device disclosed in Japanese Patent Application Laid-open No. 57-42810.

[Problem that the invention seeks to solve]

Traditional energy management involves installing sensors and converters.

Data loggers using online computers are too expensive, requiring construction costs, and in the case of existing factories, modification of the existing facilities, so data loggers are often managed manually, and the following improvements are required.

That is, it aims to eliminate reading errors, transcription errors, and calculation errors that are problems when manually collecting and aggregating data, and to reduce transcription and calculation time. In addition, since errors in cumulative data due to differences in collection times are a major problem in unit calculations and departmental allocation, by automatically correcting data to data collected at the same time, data aggregation equivalent to that of an online data logger is possible. There is a particular thing.

An object of the present invention is to provide a measurement data management device that can be easily applied to existing equipment using a handy terminal.

[Means for solving problems]

In order to solve the above problems, the present invention provides a key for inputting measurement data, a storage unit for storing input measurement data, a data communication interface for outputting the stored data to the outside, and a display for displaying input measurement data. In the measurement data management device, the measurement data management device includes: a handy terminal having a controller; and a data processing device having a data communication interface connectable to a data communication interface of the handy terminal and performing aggregation calculation processing on the measurement data. The handy terminal is capable of storing each measurement data by adding a measurement time of the measurement data, and the data processing device corrects all measurement data to data equivalent to a value measured at the same time. It is something.

[Effect]

According to the present invention, a handy terminal is used as a tool for collecting data. The handy terminal has keys for keying in data and the previous measurement (hereinafter referred to as
It's called meter reading. ) data and current meter reading data, etc., a data rationality check function, 2 special management functions, a storage function, and a communication function with a personal computer (as a data processing device). Connect a handy terminal to a personal computer and automatically transmit data. At this time, meter reading data and meter reading time are transmitted at the same time.

Calculates the time difference between the meter reading time of other meter reading data based on the meter reading time of the standard meter reading data (for example, meter reading data of received electricity amount) among a large number of meter reading data, and then calculates the ratio of the time difference to the meter reading interval time. Based on this, other meter reading data is automatically corrected to data equivalent to the meter reading at the time the standard data was read.

This makes it possible to obtain data collected at the same time that is equivalent to online data, making it possible to accurately calculate basic units and aggregate departmental allocations.

Additionally, the handy terminal's data rationality check function prevents reading errors, and the personal computer's automatic transmission prevents transcription errors.

Based on the meter reading time and meter reading data, the personal computer automatically corrects total meter errors due to differences in reading times, and also automatically calculates basic unit calculations, department allocation, etc., so there are no calculation errors and accurate totals are achieved. becomes possible.

Functions equivalent to conventional online data loggers can be achieved with an inexpensive system.

〔Example〕

Next, embodiments of the present invention will be described in detail based on the drawings.

FIG. 1 is a system configuration diagram including a handy terminal and a personal computer according to the present invention.

In Figure 1, 1 is a personal computer that performs data calculations and controls connected input/output devices, 2 is a typewriter that is connected to the personal computer and prints monthly reports, and 3 is a typewriter built into the personal computer. It is equipped with a diskette set on a floppy disk to store programs and data, an operation key 6 for inputting the pointer value of a meter mounted on field equipment, a switchboard, etc., and a character display 5 for displaying input data, etc. ,
It is a handy terminal with data storage and personal computer data communication functions.

FIG. 2 shows an example of the display on the character display 5 of the handy terminal 6 shown in FIG. There is a screen for checking or correcting the current time before collecting data.The display contents display the year, month, day, hour, and minute, and each numerical value can be checked and corrected. The display format when entering the guideline value of a meter installed on field equipment or a switchboard is as follows:
The calm of the meter being read, the name of the meter, the measurement type that determines whether the measured value is analog or pulse, the unit symbol that indicates the unit of the measured value, and the meter reading data from the current and previous meter readings.

It consists of a meter pattern that shows the number of digits in the meter reading data, the number of rides in the meter reading data, the usage amount calculated from the difference between the previous guideline and the current guideline, and an abnormality display that shows an abnormality in the usage amount.

The personal computer 1 has the following functions, which will be described below regarding the functions of the component devices.

■ Communication with the handy terminal The meter reading data collected by the handy terminal 6 is received to the personal computer 1 along with the meter reading time. Also, the instrument master data created on the personal computer 1 side is transmitted. Transmission/reception is started by connecting the R82 g 2C communication cable, which is a general-purpose interface, to the connector and pressing the transmission/reception ready key.

■ Master data is edited to manage various meter reading data. There are three types of master data: ■ Instrument master ■ Shop-specific master ■ Instrument type master.

Instrument master registers master data related to instruments,
Make corrections.

Editing items 1) Shop specific page (1-99) 2) Instrument & (1-99999) 3) Instrument name (Kanji) 4) Instrument name (Katakana) 5) Measurement type (1, Integrated value 'W' 2. Analog Value “A’”
) 6) Instrument type (1 to 99) 7) Unit symbol (alphanumeric kana) 8) Instrument pattern (1 to 6. Indication of number of digits of data) 9) Multiplier (4 digits) 10) Usage amount (guideline) upper limit Value 11) Usage amount (guideline) Lower limit value 12) Usage status (in use, discontinued) The shop-specific master registers and modifies the shop name corresponding to the shop-specific island.

(Example: 1st substation, compressor) Edit item 1) By shop & (1 to 99) 2) Shop name (kanji) The instrument type master registers and corrects the instrument name corresponding to the instrument type sea.

(e.g. wattmeter, ammeter, flow meter, etc.) Edit item 1) Instrument type & (1 to 99) 2) Instrument type name (kanji) ■ It has a slave function as a processing and display function.

■ Instrument information inquiry Display the current instrument information registered on the CR7 screen by keying in the instrument surface. Display items are the same as master data editing items.

■ Meter reading data correction a11f! If you want to modify the meter reading data, do so on the meter reading data modification screen. Corrections are necessary especially when new or rescheduling.

Modifications can also be made to guideline values and usage amounts. The instrument you want to modify can be called up by keying in the instrument surface.

Display items 1) Shop name (kanji) 2) Instrument face 3) Instrument name (kanji) 4) Measurement type (1: integrated value, 2: analog value) 5) Unit symbol 6) Instrument pattern (number of digits) 7 ) Boarding 8) Meter reading date 9) Guideline before revision 10) Guideline after revision 11) Usage amount before revision] 2) Usage amount after revision ■ Processing of corrections to statistical data Based on the data sent from the handy terminal, Correct the values into values that can be used for basic unit calculations and trend graphs.

Figure 3 shows meter reading times To, Tz, Tz...'
rb and meter reading data Wo, Wz, Wx...W
An example of n is shown.

Figure 4 shows the flow for automatically correcting meter reading data.

The previous meter reading time is To, the current meter reading time of the received power is T, the meter reading data is Wo, and the meter reading time of each load is T2.
．． Ts,...Tll and meter reading data W 11
W21...Wn. This indicates that the meter reading time varies depending on the order in which the meters are circulated. Therefore, the meter reading data for each load W L t W 2 t...
Convert W, l to data at Ts, hours. That is, each meter reading data is automatically converted into data at the same time.

Conversion formula Similarly, find W2A...WIIA.

Next, the received electric energy Wo, and each load electric energy W I A HW
xA...The difference in the total value of WrlA is corrected.

(If the received power amount and the total amount of each load power do not match,
This is an unavoidable problem as it is caused by power loss in the electrical circuit and instrument error. ) WA+WzA-1--+WnA=Wt.

W　o　−W　L　=ΔW is calculated and used as statistical data.

■Data corrected for various calculation statistical data and electricity rates,
Performs arithmetic processing such as departmental transfers and basic unit calculations based on production volume, etc.

■ Back up and save the following data on a floppy diskette and enter it into the personal computer as necessary.

■Meter master ■Shop-specific master ■Meter type master ■Meter reading data ■Various statistical processing data■ Meter reading data list and daily report 2 as printout function
Create monthly reports, etc.

The meter reading data list outputs the following items.

Output items ■) Nα by shop 2) Meter Nα 3) Meter name (kanji) 4) Measurement type 5) Meter type 6) Unit symbol 7) Meter pattern (1 to 6) 8) Multiplying factor 9) Meter reading date, hour, minute (This time) 10) Current guideline 1]) Current usage amount 12) Usage amount (guideline) abnormality flag 13) Usage amount (guideline) estimated flag 14) Previous guideline daily report The contents of the February report include the amount of electricity received, guideline values, etc. In addition to recording trends in load usage and guideline values, departmental transfer fees and basic units are recorded on a daily or weekly basis.

Handy terminal 6 has the following functions. .

■ Key human power functions a) Set the date and time of meter reading using the operation keys.

b) Input the current guideline value or estimated value using the operation keys.

■Display function a) The following items are displayed on the character display.

1) Meter N11 (5-digit number) 2) Meter name (Katakana) 3) Current pointer (numbers) 4) Previous pointer (numbers) 5) Current usage amount (pointer if analog) 6) Measurement type (
Pulse KWe or analog 1A') 7) Unit symbol (WH, V, A, etc.) 8) Meter pattern (number of pointer digits) 9) Multiplier 10) Estimated value (displayed when inputting estimated data) 11) Meter reading year Month Day Hour Minute b) As an abnormal data display function, this time is used for the upper and lower limits of the usage amount (guideline value) sent from the meter master data! (
If the current usage guideline value) exceeds the range, “
"Umbrella" is displayed.

■ Processing functions a) Receives data necessary for meter reading sent from a personal computer, and sends meter read data to the personal computer.

For transmission and reception, an R8232C communication cable, which is a general-purpose interface, can be connected to the connector.

b) Calculate the usage amount of the integrated value and check whether the usage amount is abnormal due to a reading error or the like against the upper and lower limits of the usage amount transmitted from the meter master data.

Note that there are the following two cases for calculating the amount of usage of the integrated value.

1) When the meter does not rotate, the amount used this time = (current pointer - previous pointer) 2) When the meter rotates, the meter needle is endless, so if the meter needle rotates once, the pointer starts from O. . When calculating the usage amount, the following meter rotation process is performed.

Previous guideline: 9987.15 (number of digits on the meter: 4)
(For digits) Current guideline...0005.16 Current usage amount: (10000,00 -9987,15+5,16 = 18.01 In this case, instrument rotation is performed according to the number of digits in the instrument pattern. .

With the configurations and functions of the personal computer 1 and the handy terminal 6 as described above, the problems of conventional handwritten data collection and nine-hand calculations have been solved. In other words, meter reading errors can be prevented by displaying abnormal data on the handy terminal.

Data transcription errors are completely eliminated by transmitting data from the handy terminal to the personal computer. Also, by performing various calculations using the personal computer 1, calculation errors are eliminated.

Furthermore, by correcting the data due to the difference in data collection time, data errors can be minimized and accurate statistical data can be obtained. This allows statistics equivalent to those of a data logger using an online calculator.

Recording processing becomes possible.

〔Effect of the invention〕

According to the present invention, there is no need for sensors, converters, construction costs (in the case of an existing factory, costs for modifying the existing factory), and there is no need for a data logger using an online computer.

The inexpensive system of handheld terminals and personal computers prevents reading and transcription errors.

By eliminating calculation errors and automatically processing corrections to collected data due to differences in meter reading times, it can perform the same function as an online data logger.

If data is required only at the power receiving station at short intervals, and other data is collected at intervals such as once every 7 days or once every July, install a small online data logger only at the power receiving station.
Others collect data using the system of the present invention. Online data can be loaded into this system using a floppy disk, and highly accurate data can be obtained by processing and statistical processing all the data on a personal computer.

[Brief explanation of the drawing]

Fig. 1 is a system configuration diagram of the present invention, Fig. 2 is a display format of a handy terminal, Fig. 3 is a relationship diagram of data meter reading time and meter reading data, and Fig. 4 is a diagram of the meter reading data automatically (
8 is a flowchart for correcting. 1... Personal computer, 2... Typewriter, 3... Floppy diskette for storing programs and data, 4... Handy terminal operation keys, 5... Handy terminal character display, 6 ···handy terminal.

Claims (1)

[Claims] 1. A handy device equipped with a key for inputting measurement data, a storage section for storing the input measurement data, a data communication interface for outputting the stored data to the outside, and a display section for displaying the input measurement data. A measurement data management device comprising: a terminal; and a data processing device that has a data communication interface connectable to a data communication interface of the handy terminal and performs aggregation calculation processing on the measurement data; A measurement data management device characterized in that a measurement time of the measurement data is added and stored together with the data, and the data processing device corrects all measurement data to data equivalent to a value measured at the same time. .