SU1053121A1 - Device for monitoring operation of equipment - Google Patents

Abstract

A DEVICE TO CONTROL EQUIPMENT OPERATION, containing a synchronization block, an information output control block, the output of which is connected to the perforator input, an information input block and a display unit, and a peripheral points counter, the output of which is connected to the first input of the switchboard, sensors whose outputs are connected to the inputs of the switch, grouped J characterized by the fact that, in order to increase its reliability and simplification, they are entered into it at the central point; those counter, switch and shaper of a sequence of opposite-polarity pulses, at the peripheral points, the pulse polarity selector, at the central point The first output of the synchronization unit is connected to the input of the counter, the output of which is connected to the first input of the switch and to the input of the display unit, the output of the unit input information is connected to the input of the synchronization unit, the second one: the output of which is connected to the input of the shaper of a sequence of different polarity impulses, the first one, the output of which is connected to the second inputs information output control unit, to the first input of which the second output is connected to the form (L of the sequence of different-polarity pulses, at the peripheral point the outputs of the polarity selector iptuls are connected to the input of the counter and to the second input of the switch, the output of the CR tor is connected to the first input of the polarity selector pulses, the outputs of the switch of the center point are connected to the second inputs of the polarity selectors of the peripheral units. ate do

Description

The invention relates to specialized information devices and can be used in time monitoring systems for production equipment having long continuous operation cycles and remote from each other over considerable distances, for example, pumping Compressor and veins of Oil equipment of oil refineries. A device for monitoring production equipment is known, comprising equipment status sensors and a polling unit, a linear unit, a registration control unit, a data processing unit, a synchronization unit, a dispatcher's console, random access memory, and a punch unit. Yes. The equipment conditioners are connected via a polling unit to the line unit, the line unit is connected to the registration control unit and the synchronization unit, the data processing unit is connected to the operational memory with the device and the registration control unit connected to the tape puncher and the dispatcher console ij. A disadvantage of this device is the presence of a wide-ranging communication lines between the equipment and control devices located at the central point, due to the connection of each sensor installed on the monitored equipment with the polling unit with a separate wire. Multiple wiring reduces the device's reliability and reliability of the device. information. In addition, the processes of information processing and its collection and registration in this device are performed simultaneously, so that when the data processing unit or random access memory leaves the page, all accumulated information is lost. The closest to the proposed technical entity is a device for monitoring equipment that contains peripheral points, each of which includes a switch connected to equipment status sensors, and two counters, the first of which controls the switch, and a central point including a linear unit, data processing unitJ console with information input unit and display unit, synchronization unit, impulse distributor, memory unit and information output control unit, the output of which is connected to the perforator and p On the other hand, the outputs of the synchronization unit are connected to the input of the memory unit, the input of the information output control unit, one input of the data processing unit and one input of the pulse distributor, the output of the linear unit and the output of the memory unit are connected to other inputs of the data processing unit, another input of which is connected with one output of the pulse distributor, the input of the linear unit is connected to the outputs of the commutator of all peripheral points, the first inputs of the first. the counters of all peripheral points are connected to the output of the data processing unit, and their second inputs are connected via keys controlled by the second counters to the other output of the pulse distributor, the third output of which is connected to the inputs of the second counters of all peripheral points in this device due to the introduction of separate peripheral points combining sensors installed on the equipment of one facility or one production facility installation (workshop), the number of communication lines is reduced. However, the known device is not sufficiently high reliability. This is due to the fact that the connection of peripheral points with the central; built on the main principle, i.e. All peripheral points are interconnected by communication lines, and when one of the main lines is connected, information cannot be obtained from any of the peripheral points. The drawback of the device is also the presence of separate communication lines for transmitting the address to the peripheral stations and for receiving information about the state of the equipment from the peripheral points. The aim of the invention is to increase the economy of control by reducing the number of communication lines between the central point and peripheral points, increasing the reliability of the device. The goal is achieved by the fact that the device for controlling equipment operation, containing at the central point a synchronization unit, information output control unit, the output of which is connected to the perforator input, information input unit and display unit, at the peripheral points a counter, the output of which is connected to the first the input of the switch, the sensors whose outputs are connected to the switch inputs combined into a group, are entered at the central point a counter, a switch and a driver of a sequence of different polarity pulses , at the peripheral points the pulse polarity selector, at the central point, the first output of the synchronization unit is connected to the counter input, the output of which is connected to the first input of the switch and to the input of the display unit, the output of the information input unit is connected to the input of the synchronization unit, the second output of which is connected to the input of the generator of a series of razopolnyh pulses, the first output of which is connected to the second inputs of the switch and control unit output information, to the first input of which is connected. the second output of pho world sequencer of different-polarity pulses, at the peripheral point the outputs of the pulse polarity are connected to the counter input and with the second input of the TOEja switch whose output is connected to the first input of the pulse polarity selector, the outputs of the central point switch are connected to the second inputs of the polarity selector of the peripheral unit . The drawing shows a functional diagram of the device for monitoring equipment operation. .

The device for controlling the operation of the equipment contains peripherals; points Ij located in the immediate vicinity of the monitored / equipment, and central point 2, connected to the peripheral points, 1 through the communication lines 3, and the code number of the communication lines 3 is equal to the number of the peripheral points 1. Each peripheral point 1 contains a switch 4, to which 7 sensors 5, mounted on the monitored equipment, counter 6 and the pulse polarity selector 7, are connected.

The central point 2 contains a synchronization unit 8, a shaper 9 of a sequence of different-polarity pulses, an information output control unit 10, a perforator 11, a count, a chick 12, a switch 13 and a remote control unit 14 with an information input unit 15 and a correction unit 16.

The device works as follows;

Information about the operation of production equipment is collected. by means of an iterative cyclical polling by the switch, 13 peripheral points 1, and within each peripheral point 1 - by sequential polling by the switch 4 sensors 5.

The synchronization unit 8 generates at the output, connected to the input of the counter 12, a sequence of signals, the number of which is equal to the number of peripheral points 1 / for the initial installation of the counter 12 and its subsequent filling. These signals determine the frequency of cycles to the equipment and the time to access each peripheral item 1. The contents of counter 12 correspond to the number of the peripheral item 1 connected by the switch 13. This number is

the peripheral point 1 is indicated by the display unit 16.

From another output of the synchronization unit 8, the signals defining the sampling frequency of the sensors 5 at each peripheral point 1 are sent to the shaper 9, which generates command signals, each of which consists of a control pulse and a poll pulse differing, for example, by a polarity. The control pulse passes through the switch 13 and the communication line 3 of the selected by the counter 12 peripheral points 1 to the selector 7 of this peripheral point. The selector 7 skips this pulse to

5, counter 6, changing its contents by one, as a result of which switch 4 connects to another output of the selector 7 sensor 5 of the equipment condition, the number of which corresponds to the contents of counter 6. Following the control pulse, the interrogation pulse also enters another switch .13 and line 3 connection. . selector 7 which directs

5: through its other output to the switch 4. Depending on the state of the equipment, sensor 5 of which is selected by the counter b, the interrogation pulse or closed on the common wire, iz.

The change is its level, which corresponds, for example, to the working condition of the equipment, or remains unchanged, which corresponds to the non-working condition of the equipment. As sensors 5 can be used

5 standby contacts of equipment switches.

At the same time, a polling pulse arrives at one of the inputs of the information output control unit 10, which, in a variety with a polling pulse level, generates an equipment status code and outputs it to the perforator 11 synchronously with a strobe signal arriving at the other input of unit 10 from another output shaper 9.

The next command signal changes the content of the counter 6 by one, and the switch 4 connects to the selector 7 the next sensor 5, which is recorded in the central point 2 in a similar way.

When all sensors 5 in one peripheral point 1 are polled,

5, the counter 6 is zeroed out, and the synchronization unit 8 supplies the next pulse to the counter 12, as a result of which the next peripheral point 1 is connected to the switch 13, polling

0 sensors which is produced similarly.

After the end of the polling of all the peripheral points 1, which corresponds to one polling cycle, the device returns to its original state, ..

five

The frequency of polling cycles is determined by the information input unit 15 on the console 14 and may vary depending on the required accuracy of the equipment operation and on the frequency of switching the equipment off. Due to the fact that the device operates cyclically, the state code of each process is on a punched tape, within each polling cycle fixed by location. The resulting punched hole is processed on a computer. The operation time of each piece of equipment is determined by multiplying the number of polls in the survey, over. which equipment is in the on state for the time between polling cycles.

  Thus, technical, HiiQitKeecTBa devices consist in the ability of the number of communication lines between the central point registering the equipment condition and each peripheral point, which is caused by the introduction of a sequence of different polarity pulses into the central point and the pulse polarity selector into each peripheral point, and also in maintaining the operability of the device in the event of a communication failure between the central point and one or several peripheral points, due to the presence in the central oh point of the counter number of the peripheral point and switch.

The technical and economic advantages of the invention are to increase the reliability of the device, which is a consequence of maintaining its operability in the event of a communication failure between the central point and one or several peripheral points, as well as reducing the costs on the communication lines as a result of decreasing their number. quality of communication lines can be. used on the objects of telephone pairs.

Claims (1)

DEVICE FOR MONITORING EQUIPMENT OPERATION, containing at the central point a synchronization unit, an information output control unit, the output of which is connected to the input. a punch house, an information input unit and an indication unit, at peripheral points a counter whose output is connected to the first input of the switch, sensors whose outputs are connected to the inputs of the switch, united in a group, characterized in that, in order to increase its reliability and simplification, a counter, a switch and a shaper of a sequence of bipolar pulses are introduced at a central point, at a peripheral point, a pulse polarity selector, at a central point, the first output of the synchronization unit is connected to the input a meter, the output of which is connected to the first input of the switch and to the input of the display unit, the output of the information input unit is connected to the input of the synchronization unit, the second output of which is connected to the input of the generator of a sequence of bipolar pulses, the first output of which is connected to the second inputs of the switch and the control unit information output, to the first input of which the second output of the generator of a sequence of bipolar pulses is connected, at the peripheral point the outputs of the pulse polarity selector are connected input of the counter and a second input switch, whose output is connected to the first input of the selector pulse polarity, the central point switch outputs are connected to second inputs of selectors polarity impulrov peripheral blocks.