JPH0315797B2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention is a load system that measures and records the usage of electricity, gas, water, etc. at regular intervals, calculates the measured data on a computer, and investigates and analyzes their usage status. Regarding survey equipment.

As an example of a conventional device, an electric power load survey device shown in FIG. 1 will be described.

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. to be memorized. Then, once a month, a meter reader records the measurement data stored in the IC memory in the electric power load measuring device on a cassette tape 4 using the data recorder 3 and collects it together with the equipment number of the electric power load measuring device. Do it. Then, the measurement data collected by the cassette tape 4 is calculated by the computer 5 to investigate and analyze changes in the amount of electricity used by each customer.

In the above-mentioned apparatus, conventionally, when collecting measurement data of a load measuring device using the data recorder 3, a meter reader writes the device number of the load measuring device, the collection date and time in a collection table, etc. When calculating measurement data with a computer, input the equipment number and collection date and time that you have written on the collection list, etc. into the calculator, search for the collection data of the corresponding equipment on the cassette tape using the equipment number, and enter it. The measurement date and time of each collection data is determined from the collection date and time.
A method was used to count the time backwards.

In addition, each time a meter reader collects measurement data from a load measuring device, the meter reader enters the device number, collection date, and time of the load measuring device in a collection form, etc., and when calculating the collected data, the meter reader writes the device number and the collection date into the computer when calculating the collected data. In order to eliminate the drawback of inputting the date and time, it is possible to have a clock inside the load measuring device and store the measured time together with the measurement data in the IC memory inside the load measuring device. It becomes necessary to have a clock inside the device, and an accompanying date/time adjustment switch and a date/time display are also required, making the load measuring device complicated.

Here, the present invention has a built-in clock in the data recorder, and when collecting measurement data from a load measuring device onto a cassette tape, records the collection date and time together with the measurement data on the cassette tape, By using a computer to calculate the measurement date and time of each measurement data based on the date and time, the conventional work of manually entering the equipment number and collection date and time when collecting measurement data has been eliminated. The purpose is to provide a road survey device that can eliminate the need for

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 is a detector 101
A measurement counter 203 that counts signals from
and an IC memory 204 that stores the measurement data.
, an output circuit 205 for transmitting data in the IC memory 204 to the data recorder, a control circuit 202 for controlling the above circuits, and an IC memory 204.
It is composed of a clock 206 and a power supply circuit 207, which determine the time at which measurement data is stored in the memory.

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 the cassette tape 4, and a clock that outputs the date and time. circuit, and an operation/display circuit 31 for displaying and correcting the date and time of the clock.
2, and a control circuit 31 that controls the operation of the above circuits.
1 and a power supply circuit 313.

In Fig. 2, the load measuring device 2 includes electric power, gas,
A counter 203 measures a pulse signal from a detection unit 101 that outputs a pulse proportional to the amount of water used, etc.
Count with . The control circuit 202 is the clock section 2
06, the contents of the measurement counter 203 are sequentially stored in the IC memory 204 at regular intervals. Furthermore, at the time of recovery, the measured data in the IC memory 204 is sequentially transmitted to the data recorder 3 through the output circuit 205 in response to a signal from the data recorder 3.

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. The cassette tape operating circuit 309 sequentially records the received measurement data onto the cassette tape 4. Load measuring device 2
When all of the measurement data has been recorded on the cassette tape 4, the control circuit 311 reads the current date and time, that is, the data collection time, from the clock circuit 310 of the data recorder 3, and records it on the cassette tape 4 together with the measurement data.

To give a more specific example, let us assume that the period in which measured data is recorded in the IC memory 204 in the load measuring device 2 at a certain time is 15 minutes, and the period is 9:00 (9 o'clock).
If load measurement is started from , the measurement data and measurement time in the IC memory 204 in the load measuring device 2 will be as shown in FIG. When the data recorder 3 collects the measured data at 11:12, the data recorder 3 sequentially transfers the data (DATA0 to DATA8) from the IC memory 204 in the load measuring device 2 to the cassette tape 4 as shown in FIG. The collection time 11:12 is read out from the clock circuit 310 built into the data recorder 3 and recorded at the end (after DATA8). If the collection time is 11:12, the newest data (DATA8) will be stored in IC memory 20 at 11:00.
4 will be memorized. 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, the date and time of collection of the measurement data is measured from the clock circuit 310 built into the data recorder 3. By recording the cassette data along with the data, it is no longer necessary for the meter reader to write the equipment number and collection date and time on a collection form when collecting data. Furthermore, when the computer 5 calculates the measured data collected on the cassette tape 4, it is no longer necessary to input the equipment number and collection date/time entered in the collection table into the computer 5.

Furthermore, in the present invention, the load measuring device 2 only needs to have a clock unit 206 that operates at a constant cycle for storing measurement data in the IC memory at regular intervals, and in particular, a clock unit 206 that ticks the date and time. Also, the accompanying time adjustment switch and date/time display section are no longer necessary, and the load measuring device 2 can be downsized. 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.

Furthermore, with general road survey equipment, 1
In order to collect measurement data from a large number of load measuring devices 2 using one data recorder 3, each load measuring device 2 is equipped with a clock circuit 310, an accompanying time correction switch, and a date/time display circuit. too,
The total cost will be lower if it is provided on the data recorder 3 side.

[Brief explanation of drawings]

Figure 1 is an explanatory diagram of a conventional road 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 data arrangement diagram on a cassette tape according to the present invention. DESCRIPTION OF SYMBOLS 1... Electric energy meter, 2... Load measuring device, 3... Data recorder, 4... Cassette tape, 5... Computer, 101... Detector, 202... Control circuit,
203...Measurement counter, 204...IC memory,
205...Output circuit, 206...Clock, 20
7...Power supply circuit, 308...Input circuit, 309...
...cassette tape operation circuit, 310 ... clock circuit, 311 ... control circuit, 312 ... operation/display circuit, 313 ... power supply circuit.

Claims (1)

[Claims] 1. A load measuring device that measures usage and stores the measured data in an IC memory at regular intervals;
In a load survey device comprising a data recorder that records and collects measurement data stored in an IC memory on a cassette tape, the data recorder is equipped with a clock circuit, and the data recorder records measurement data on the cassette tape from the load measuring device. When recording and collecting data, the collected date and time are read from the clock circuit and recorded on the cassette tape together with the measurement data, and when calculating the usage amount from the measurement data of the cassette tape, Date recorded on
A road survey device characterized by back-calculating the date and time of each measurement data recorded at regular intervals based on the time. 2. A measurement counter that inputs and counts the usage data from the detector, an IC memory that stores the value of the counting counter, an output circuit for transmitting the data of this IC memory to a data recorder, the measurement counter, and the IC memory. , a load measuring device comprising a first control circuit that controls an output circuit and a clock that determines a time for storing measurement data in the IC memory;
An input circuit that receives data from the load measuring device, a cassette tape operating circuit that records the input data on the cassette tape, a clock circuit that records the date and time on the cassette tape, and a clock circuit that displays and corrects the date and time. an operation/display circuit for the operation and the input circuit, a cassette tape operation circuit,
2. The road survey device according to claim 1, further comprising a clock circuit and a data recorder comprising a second control circuit that controls the operation of an operation display circuit.