JPS5872297A - Load surveyor - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] The present invention is a method for measuring and recording the amount of electricity, gas, water, etc. used at regular intervals, calculating the measured data with a computer, and analyzing the usage status. It is related to the load survey device number.

An example of a conventional device will be described with reference to the power load survey device number shown in FIG.

The load survey system described below is for investigating the actual load status of each customer.

As shown in Figure 1, a power load measuring device 2 is installed for each power meter 1, and the amount of power used in 15-minute units is measured over a month, and the data is stored in the IC memory in the power load measuring device. Remember. Then, once a month, a meter reader records the measurement data stored in the IC memory of the electric power load meter on the cassette tape 4 using data recorder No. 3 ζ along with the device number of the electric power load meter and collects the data. do. Then, the measurement data collected by the cassette tape 4 is calculated by the computer 5 to investigate changes in the amount of electricity used by each customer.

analyse.

In the above-mentioned device, conventionally, when the data recorder 3 collects the measurement data of the load measuring device, the meter reader writes the equipment number of the load measuring device, the collection date and time in a collection table, etc., and collects the measured data. When calculating the number ζ using a calculator, input the device number and collection date/time entered in the collection table etc. into the calculator, search for the collection data of the corresponding device in the cassette tape using the device number, and check the input collection date and time. The method used was to back-calculate the measurement date and time of each piece of collected data from the time.

In addition, each time a meter reader collects measurement data from a load measuring device, the meter reader writes the device number and collection date and time of the load measuring device in a collection form, etc., and when calculating the collected data, enters the device number and time in the calculator. In order to eliminate the drawback of inputting the collection date and time, it is possible to have a clock inside the load measuring instrument and store the measured time and the measurement data in the IC memory inside the load measuring instrument. In this method, it is necessary to have a dial clock inside the load measuring device, and a date/time adjustment switch and a date/time display section are required, making the load measuring device complicated.

Here, the present invention provides a built-in clock in the data recorder, and when collecting measured data from a load measuring device with a cassette tape number ζ, records the collection date and time on the cassette tape together with the measured data. , the measurement date and time of each measurement data is calculated backwards using a computer based on the collection date and time.This method eliminates the need to manually calculate the equipment number and collection date and time when collecting measurement data, which was previously done.
It is an object of the present invention to provide a road survey device that can omit the work of entering time.

FIG. 2 is a block diagram showing the basic configuration of a load measuring device and a data recorder in one embodiment of the present invention.

A detector 101 detects the amount of electricity, gas, water, etc. used. The load measuring device 2 includes a measurement counter 203 that counts signals from the detector 101, an IC memory 204 that stores the measurement data, and an output circuit 205 that transmits the data in the IC memory 204 to a data recorder.
A control circuit 202 that controls the above circuits and an IC memory 2
Clock 2 that determines the time to store measurement data in 04
It is composed of 06, yu, and power supply circuit 207.

The data recorder 3 includes an input circuit 308 that receives data from the load measuring device 2, a cassette tape operation circuit 309 that records the input data and the date and time of a clock 310 on a cassette tape 4, and outputs the date and time. Clock circuit and operations and corrections for displaying and correcting the date and time of the clock
It is composed of a display circuit 312, a control circuit 311 that controls the operation of the above circuits, and a power supply circuit 313.

As shown in Figure 2, the load measuring device 2 measures electricity and gas.

A detection unit 10 that outputs a pulse proportional to the amount of water used, etc.
The pulse signal from 1 is counted by the measurement counter 203. The control circuit 202 inputs the contents of the measurement counter 203 to the IC at fixed time intervals based on a signal from the clock section 206.
The information is sequentially stored in the memory 204.

In addition, at the time of collection, the measurement data of the IC memory 204 is sequentially output to the output circuit 205 by a signal from the data recorder 3.
The data is transmitted to the data recorder 3 through

The data recorder 3 sends the measurement data transmitted from the load measuring device 2 to the cassette tape operating circuit 309 through the input circuit 308. Cassette tape operation circuit 309
sequentially records the received measurement data onto the fourth cassette tape. When all the measurement data of the load measuring device 2 has been recorded on the cassette tape 4, the control circuit 311 records the current date and time, that is, the data collection time, on the data recorder 3.
is read from the clock circuit 310, and recorded on the cassette tape 4ζζ together with the measurement data.

To give a more specific example, the cycle of recording measurement data in the IC memory 204 within the load measuring device 2 at a fixed time is set to 15 minutes, and the load measurement starts from 9:00 (9 o'clock). If so, the IC memo IJ 204 in the load measuring device 2
The measurement data and measurement time are as shown in Figure 3. When the measured data is collected by the data recorder 3, the data recorder 3 collects the data (DATAO to DATA) in the IC memory 204 in the load measuring device 2.
8) on the cassette tape 4 as shown in Figure 4, and finally (after DATA8) k collection time 11.
: 12 is read out from the clock circuit 310 built into the data recorder 3 and recorded. Collection time is 11:1
In case of 2, the newest data (DATA8) is 11:O
This means that the OJ is stored in the IC memory 204. Thereafter, the time is calculated backward every 15 minutes, and the measurement time of each measurement data can be determined by the calculator 5.

Thus, according to the present invention, when the data recorder 3 collects measurement data from the load measuring device 2 onto the cassette tape 4, the clock circuit 3 built in the data recorder 3
By recording the collection date and time of measurement data from 10 in the cassette data along with the measurement data, it is no longer necessary for the meter reader to record the equipment number, collection date and time on the collection table etc. at the time of data collection. Furthermore, when the computer 5 calculates the measured data collected from the 4# cassette tapes, it is no longer necessary to input the equipment number and collection date/time entered in the collection table or the like into the calculator 5.

Furthermore, in the present invention, the load measuring device 2 only needs to have a clock section 206 that operates at a constant cycle for storing the number ζ measurement data in the IC memory at constant time intervals.
In particular, the clock that ticks the date and time, the time adjustment switch that accompanies the number ζ, and the date and time display section are no longer necessary, and the load measuring device 2 can be made smaller. This is particularly effective when there is a space restriction on the installation location of the load measuring device 2, such as when measuring electric power loads in general households.

In a typical load survey device, one data recorder 3 collects measurement data from a large number of load measuring devices 2, so each load measuring device 2 is equipped with a clock circuit 310.
The total cost will be lower if it is provided on the data recorder 3 side than if it is provided with the accompanying time adjustment switch and date/time display circuit section.

[Brief explanation of drawings]

Fig. 1 is an explanatory diagram of a conventional load survey device, Fig. 2 is a block diagram showing the configuration of an embodiment of the present invention, Fig. 3 is a memory map of a load measuring device, and Fig. 4 is a cassette tape according to the present invention. This is the data layout diagram above. DESCRIPTION OF SYMBOLS 1... Electric energy meter, 2... Load measuring device, 3... Data recorder, 4... Cassette tape, 5... Calculator, 1o1... Detector, 202... Control circuit, 2o3
...Measurement counter, 204...IC memory, 205
...Output circuit, 2o6...Clock, 207...
Power supply circuit, 308... Input circuit, 3o9... Cassette tape operation circuit, 310... Clock circuit, 311...
- Control circuit, 312... Operation/display circuit, 313...
・Power circuit.

Claims (1)

[Claims] 1. Measure the usage amount and collect the measured data at regular intervals.
A load survey device Km includes a load measuring device stored in the IC memory and a data recorder for recording and collecting the measurement data stored in the IC memory on a cassette tape, the data recorder I being equipped with a clock circuit, When recording and collecting measurement data from a measuring instrument onto the cassette tape by the data recorder, the collected date and time are read from the clock circuit and recorded on the cassette tape together with the measurement data, and at the same time, from the measurement data of the cassette tape. A dice calculator that calculates the usage amount;
Based on the date and time recorded on the cassette tape, the date and time of each measurement data recorded at regular intervals is determined.
A road survey device that calculates the time backwards. 2. A measurement counter that inputs and counts usage data from the detector, an IC memory that stores the value of the counter, an output circuit for transmitting the data to the IC memory with a data recorder, the measurement counter, and an IC. A load measuring device comprising a first control circuit that controls a memory, an output circuit, and a clock that determines a time for storing measurement data in the IC memory, and an input circuit that receives data from the load measuring device. A cassette tape operation circuit for recording data on the cassette tape, a clock circuit for recording the date and time on the cassette tape, an operation/display circuit for displaying and correcting the date and time of the hour hand circuit, and the input circuit. Claim I! A cassette tape operation circuit comprising: a data recorder comprising a counter circuit, a second control circuit for controlling the operation of an operation display circuit, and a data recorder.
The road survey device according to item 1.