JPS61289404A - Information supervisory and control equipment - Google Patents

Abstract

PURPOSE:To increase/decrease the measuring and supervising items of various information simply in accordance with the size of equipment and to attain the processing of an input signal even if the input signal is changed by constituting the titled equipment of an one-board microcomputer. CONSTITUTION:The equipment is constituted of the 8-bit one-board microcomputer 1 obtained by connecting a data bus 3 to a central processor unit (CPU) 2 through storage parts RAM 4 and ROM 5, an information input part 7 for inputting respective measuring values applied from plural sensors through a multiplexer(MPX) 6 to the data bus 3 is connected and respective data inputted from the input part 7 are periodically stored in the RAM 4 in each data as an integrated value or an average value within a unit time. Since the one-board microcomputer is used and the using state information of electric power is inputted to the information input part 7, measurement in each unit time and electric energy and a power factor in a day can be recorded and the using state of electric power can be supervised.

Description

[Detailed Description of the Invention] [Technical Field of the Invention] This invention mainly relates to various information required for production in factories, such as the amount of electricity used or power factor, consumption of water, gas, raw materials, etc. The present invention relates to an information monitoring and control device used to measure quantities, monitor and record their status.

[Technical background of the invention and its problems]

Taking conventional information monitoring and control equipment as an example of power monitoring and control equipment for power receiving equipment, it is based on a data logger, and although it has advanced capabilities, it is extremely expensive. , the output of measured values changes during use due to the addition or improvement of power equipment, but it is not possible to easily make changes to the originally delivered equipment. It was inflexible and lacked versatility, and there was a problem that it could not be adapted to factory equipment as technology developed.

[Purpose of the invention]

This invention was developed to address the above-mentioned problems, and it is possible to easily measure various information and increase/decrease monitoring items according to the scale of the equipment, and also to be able to deal with changes in input signals. This is the purpose.

[Summary of the invention]

The present invention includes an information input section that cumulatively inputs a plurality of measured information values to a data bus of a one-board microcontroller every unit time and sequentially stores them in a storage section, and a setting that allows predetermined information values to be set and self-maintained. A value input section, an abnormality alarm section that compares and calculates each information value stored in the storage section with a set value, and issues an alarm if a signal exceeds the set value; It is characterized in that it is connected to a recording section that prints out calculated data of the total value or average value within a predetermined period of time.

[Embodiments of the invention]

As shown in FIG. 1, the structure of this device is shown in FIG.
It consists of an 8-bit one-board microcontroller 1 with 4 and (ROM) 5 connected, and a multiplexer connected to the data bus 3.
(MPX) (Owns 16 channels) An information input section 7 is provided for inputting each measured value given by a plurality of sensors via the Each piece of data is periodically stored in the storage unit (RAM) 4 as an integrated amount or an average value. Further, there is also a set value input section 10 in which the maximum allowable value for each data can be set and input using a digiswitch 9 via an interface Cl10) 8, and a timer for inputting the month, day, and time by changing them with a mode changeover switch 11. 12 is provided, and the set value is periodically retrieved and compared with the data stored in the storage section 4, and a signal is issued when the stored data exceeds the set value. Also, data bus 3
A display 1 that numerically displays each data from the information input section 7 through a separate interface (Ilo) 13.
4, an alarm indicator 15 that lights up a lamp in response to a signal emitted by comparing the set value and data, and an abnormality notification unit 17 that includes a relay 16 that sounds a buzzer; and a storage unit (RAM) that receives a command from the timer 12. It is connected to a recording section 18 which outputs the data in 4 as an integrated amount or an average value during a predetermined time and prints out each data.

Note that, when printed out by the recording unit 18, special notes such as red or underline can be printed on the item that generated the alarm signal. Further, a mode changeover switch 19 for switching the system displayed on the display 14 is inputted via the interface 8.

The circuit shown in FIG. 2 shows the structure of a sensor that detects the amount of electric power and power factor in the power receiving equipment.

A current transformer (
CT), inputs the circuit voltage load current from the voltage transformer (PT) to the power converter (W) and power factor converter (PF) and converts it into a measured current (4 to 20 mA) or voltage (1 to 5 V) value. The information is then input to the information input section 7.

In addition, it is not limited to electricity-related matters, for example, water used in production factories,
Information such as consumption of gas or raw materials, production volume, machine operating rate, product yield rate, etc. can be converted into current or voltage values and input.

As described above, by using a one-board microcomputer and inputting the power usage status information into the information input section 7, hourly meter readings, daily power consumption and power factor can be recorded, and the power usage can also be recorded. The status is monitored and a notification is given in the event of an abnormality.

〔Effect of the invention〕

According to the information monitoring and control device according to the present invention, since it is constituted by a one-board microcomputer, it can be provided at low cost, and the information to be input can be freely adjusted. , it is possible to have a range of current values, and depending on the expansion or improvement of factory equipment,
The resulting information is processed and monitored reliably. In addition, necessary measurements of information can be obtained according to instructions, which saves labor in information processing.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing the configuration of an information monitoring and control device according to the present invention, and FIG. 2 is an electric circuit diagram showing a sensor that outputs power information. 1...One-board microcomputer, 2...Central processing unit,
3... Data bus, 4, 5... Storage section, 6... Multiplexer 17... Information input section, 9... Digiswitch, 10... Setting value input section, 12... Timer, 17... Abnormality reporting section, 18... Recording section

Claims (1)

[Claims] An information input section that cumulatively inputs a plurality of measured information values to the data bus of the one-board microcontroller for each unit time and sequentially stores them in a storage section, and a set value input section that is set with predetermined information values and self-maintained. , an abnormality alarm section that compares and calculates each information value stored in the storage section with a set value and issues an alarm when a signal exceeding the set value; An information monitoring and control device characterized in that it is connected to a recording section that prints out calculated data of a total value or an average value within a predetermined period of time.