SU706824A1 - Multichannel device for programme control of objects - Google Patents

Description

 . one

The invention is intended for centralized program management of a group of technological

objects, and the control objects are not of the same type and can operate asynchronously due to different dynamic characteristics. Objects and controls can be filling stations serving simultaneously several consumers, complex chemical technological objects. etc.

A device is known for the central zoological program control. group of objects containing two

- program blocks, step voltage driver, amplifier, voltage converter, digit number and number of working elements comparison blocks, coincidence circuits, memory blocks, amplifiers and drives of working bodies 1. In this device, the state of control objects is not monitored for compliance with a given parameter. ie. In addition, the dynamic characteristics of control objects are not taken into account.

The closest technical solution to the invention is a multichannel device for. prog2

frame control object containing a registration unit, sequentially connected pulse generator, reversible counter, divider

frequencies, KoivwyTaTop programs and a program storage unit, and each control channel of the corresponding object contains sequentially connected actuators,

0 a pulse shaping unit, a memory block and a 6.LOCK control of the state of the actuators, connected respectively to the outputs of the frequency divider and the program switch 2.

In the program storage block and the memory block, the preset intervals and amplitudes of the output parameter corresponding to the most

about inertial object, without

dynamic state of other objects,. Since in this system control objects have different inertia, a part of the system is significant

5 time is in deceleration mode. This reduces the overall speed of the system. The decrease in speed is influenced by the lack of communication between the pulse generator and the control object, which is necessary to change the speed over time.

dynamic characteristics of the object of control,

In this device, the control unit of the state of the executive mechanisms does not take into account the state of the control objects, there is no protection of the object from emergency situations, which reduces the reliability of the device.

The purpose of the invention is to increase the reliability and speed of the device,. ,

This is achieved by the fact that a multichannel device for programmatically controlling objects, comprising a registration unit, a series-connected pulse generator, a reversible counter, a frequency divider, a program switch and a program storage unit connected by an output to the second input of the reversible counter, and in each control channel - a block control of the state of the actuators, the sensor unit of the state of the object and the successively combined memory block, the pulse shaping unit and the executive meha.ism,: the second the input of which is connected to the output of the control unit of the state of the executive mechanisms connected by the first input to the second input of the pulse shaping unit of the given channel and the second output. frequency divider, and the second input. through the memory block of this channel with the second output of the switch, the pro- R & mm - a protection unit, an object model and a logic unit, the inputs of which are connected to the outputs of the Sensor 6 units in the state of the objects, the first output — the first input of the topai toopa pulses, the second output — c. neisBbiM input of the registration unit, and the third output through the protection unit with: the outputs of the actuators, connected object models, one of the outputs which is connected to the second input of the pulse generator, and the second inputs of the registration unit are connected to the second outputs of the pulse generation units,,. .

The drawing shows a block diagram of the device. . It contains a generator of pulses 1, a revolving power sieve 2, a frequency divider, a program switch 4, a program storage block, jCtaT4HKOB blocks of object states, execution mechanisms 7, pulse shaping blocks 8, blocks of memory 9, blocks of state control of actuators mechanisms., block 11 protection, model 12 objects, logical block 13 and block 14 registration.

Block 14 registration is intended. to collect statistics on the execution of commands in the autonomous and operating modes of the device for the purpose of subsequent research and selection of the most optimal modes of the device, block 11 protection to disconnect the actuators 7 from the object in the event of a pre-emergency situation. Model 12 is designed for. research and verification of the device without a working object, t, e. in the autonomous mode, and block 13 - for comparing the differences between the states of the control objects with the subsequent formation of a command to other blocks, ....

Before starting the device, in block 5, the specified duration of each individual program step is set, and in block 9, the value of the parameter change in the program over the given time (step)

In addition, in generator 1, the mode of normal, accelerated and slow operation of the entire device is established depending on the commands that will be received during the operation.

The operation of the device is possible in 2 modes: in the autocontrol mode and normal mode (functioning.

The operation of the device in the autocontrol mode is carried out as follows. -

From model 12, a command is issued to generator 1. to the accelerated mode, From the generator output, the pulses go to counter 2, then to divider 3 and switch 4. At each stage, in block 5, the specified time of the stage is set. This number is written to the counter 2 after each of its zero state, and then the pulses are subtracted from this number to zero. Such subtraction operations are performed at each stage as many times as the division factor of divider 3,.

Switch-op 4 also switches the specified parameters of blocks 9 in each control channel of the object. Block 9 determines how many pulses and their sign should be transmitted from block 8 to the actuator 7, ....

The state of the mechanisms 7 is transmitted to the model 12 and block 10. Thus, the operation of all units of the device in various speed modes is controlled. Moreover, all possible variants of the execution of commands are fixed in model 12, and in the case of inconsistency between the operation of individual channels, corresponding signals are generated indicating the malfunction of one or another device node.

A quick device check is performed.

Consider the operation of the device in the mode of normal operation. In this mode, the frequency of operation of the geerat. File 1 3 is given in block 13 ,.

The passage of pulses from block 8 to the actuators 7 is carried out in the same way as in the previous mode. The control of the state of the object and the mechanism 7 is carried out by block 10 ,.

The actuators 7 control the objects at the level of those parameters that are specified in block 9 at this stage.

If an object has performed operations at this stage, and other objects have not yet completed their operations, then block 13 issues signals to generator 1 to allow the next operation to be performed on this object in a valid mode. If further work of this object requires. the corresponding states of other objects, control objects, then through a counter 2, a divider 3 and a block 8 receive a signal to the corresponding actuators 7.

In case of emergency situations in the block: 13, control impulses are formed, which determine unacceptable situations of control objects. Through block 11, actuators 7 and objects are commanded for triojolic effects that exclude the destruction of the object, the occurrence of fire, explosion, and other adverse factors.

The effect of introducing the proposed device is an increase in speed due to the introduction of c. it is a logical block. The total program execution time is shorter than with known devices, which is one of the most important indicators. .. The effectiveness of the device is in high reliability that is ensured,. in particular, the introduction of a protection unit protecting the control objects from destruction and other adverse factors. .-.

The object model increases the reliability, effectiveness and efficiency of the device, during its monitoring, adjustment and installation. gives you the opportunity to (check the device for a short

Claims (2)

1. USSR author's certificate No. 224634, class C. 05 V 19/18, 1967. 2. USSR author's certificate according to the application 2402548 / 18-24, class C 05 V 19/18, 1976.