SU463100A1 - Device for setting the program - Google Patents

Description

This invention relates to automatic control and is intended for use in automatic control systems with a programmable variable parameter setting.

Devices for setting a program are known, comprising program set blocks, a pulse shaper connected to a controlled frequency divider, the output of which is connected to a reversible counter and an output block.

However, the known devices are inaccurate in operation.

The proposed device differs from the known ones in that each block of the program set contains a speed reference circuit, a level reference circuit and a switching circuit, the output of the speed reference circuit is connected to a controlled frequency divider, the output of the level reference circuit is connected to a reversible counter, one output of the switching circuit is connected with speed and level setting circuits, another - with a switching circuit of a subsequent block of the program set, and the switching circuit outputs are connected respectively to the output of the level reference circuit and the output of the switching circuit of the previous block of the program set. This improves the accuracy of the device.

The first output of the switching circuit of the last block of the program set is connected to the first input of the switching circuit of the first block of the program set.

The drawing shows a functional diagram of the proposed device.

The device contains pulse generator 1, controlled frequency divider 2, output unit 3, reversible counter 4, speed setting circuit 5, level setting circuit 6, switching circuits 7 and program set blocks 8.

The device works as follows.

The operation of the device in one section is determined by the state of the switching circuit of the program set block, which permits setting the speed and setting the level set in one section. At this time, the switching circuits of the remaining blocks of the program set are in the prohibited state. The operating state of the switching circuit in the first region is set manually. The reference frequency pulses from pulse generator 1 are fed to a controlled frequency divider 2, which produces pulses of a given frequency in accordance with the value set by the speed setting circuit 5. These pulses are received in parallel to the output unit 3 and the reversible counter 4. The number of pulses, counted by the counter, is continuously compared with the number vpcojiH, set by the level setting circuit 6, and if they are equal, the coincidence circuit, combined with the level setting circuit 6, outputs a switching signal circuit 7, which, in turn, includes a set block of the program of the next section.

Subject invention

Claims (2)

1. A device for setting a program. We have a program set block, a pulse shaper connected to a controlled frequency divider, the output of which is connected to a reversible counter and an output block, characterized in that, in order to improve the accuracy of the device, each program set block contains the speed reference circuit, the level reference circuit and the switching circuit, the output of the speed reference circuit is connected to a controlled frequency divider, the output of the rearrangement circuit is connected to a reversible counter, one output of the switching circuit is connected to the speed reference and level circuits, the other the program set block, and the inputs of the switching circuit are connected respectively with the output of the level setting circuit and the output switching circuit of the previous block recruitment program. 2. The device according to claim 1, characterized by The fact that the first output of the switching circuit of the last block of the program set is connected to the first input of the switching circuit of the first block of the program set. I