SU1297085A1 - Multichannel function generator - Google Patents

Abstract

) The invention relates to automation and computing. The purpose of the invention is to improve the speed. Multichannel function generator contains n function generators 1-1 ,, .., 1-n (where B is the number of channels), and n buffer register-. ditch 2-1, ..., 2-p, bus 3 data entry, bus 4 synchronization, elements OR 5-1, ..., 5-p, one-shot 6-1, ..., 6-p, groups transmit keys 7-1, ..., 7-p and receive key groups 8-1, ..., 8-p. During operation, synchronous groups of channels are selected with keys 7 and 8, and the same information is recorded in by setting one additional bit in the buffer register 2 of one of the channels and the operation of the one-vibrator 6. As a result, the data is simultaneously written in all registers of the synchronous group, which reduces the number of exchanges on the bus and increases trodeystvie. 2 Il. c (L. U et et et g. fpuf /

Description

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The invention relates to automation and computing and can be used, in particular, in multichannel load control systems of mechanical structures by means of an electro-hydraulic drive.

The aim of the invention is to increase speed.

Fig, 1 shows a block diagram of a multi-channel functional generator; in fig. 2 is a sync bus diagram.

The multichannel functional generator (figs, 1 and 2) contains n gerators of functions 1–1, 1–2, ..., 1 – n; n buffer registers 2-1, 2-2,.,. 2-p; bus 3 data entry, bus 4 synchronization, the elements of OR 5-1,.,., 5-p, one-shot 6-1 ,, .., 6-p; groups of transfer keys 7-1 ,,,., 7-ri and rpyniaa of reception keys 8-1 ,,,, 8-p.

The principle of operation of the device is based on the fact that in each channel of the generative function sections of the functions are combined in succession following groups (program blocks). At the same time, the distribution of the lengths of the division of functions within each program block is generally determined individually and depends on the properties of the function reproduced in a given channel. Such formation of program blocks allows you to select those areas where playback of matching functions for a number of channels takes place. The selection of such program blocks occurs according to the information that is written to one of the bits of the buffer register 2,

The device works as follows.

At the initial moment of time, in registers 2-1 ,,,., 2-p, codes are established that characterize the parameters of the first sections of the reproduced functions. Upon the Start command (the chain of bringing the nodes back to the initial state and starting the device are not shown), the generators 1-1,..., 1-n begin to work out their first software function generation blocks.

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If for these program blocks on different channels: 1x, functions differing from each other are reproduced, then logical zeros are set in the additional bits of registers 2-1 ,, .., 2-n. In this case, the generation of functions in the channels occurs independently. The data in registers 2-1, ..., 2-n is updated in accordance with the exchange request signals that occur on the pulse outputs b, ..., b of the function generators. Data output to bus 3 is performed sequentially (data is prepared, for example, using a microcomputer), while the gates a. ,, .. (3 | of the corresponding channels receive pulses, through which data

entered into one of the registers 2-1, ..., 2-p.

If upon completion of the current program block, the program block is supposed to be worked out with the formation of functions that are the same for a number of channels, then the following actions are performed.

Since the completion of the current program block occurs simultaneously over the entire group of channels, the request signals for the exchange of these channels are simultaneously set to one. At the same time, the exchange will capture the most priority (function by number) channel for the formation of functions. In accordance with its request for exchange, a buffer re: a gistr of the given channel, for example, register 2-1, reads information about the parameters of the reproduced function. In the additional bit of this register, one is recorded - a sign of the synchronous group. The occurrence of the unit triggers the single-vibrator 6-1, the output impulse of the single-oscillator through some closed key of the key group 7-1 goes to the corresponding line of the synchronization bus 4, To this line, using the closed keys of group 8, the channels are connected together with the first channel synchronous channel group. The impulse of the one-shot 6-1 through the closed keys of groups 8 enters the elements OR 5 of the synchronous group of channels. The signals from the outputs of these elements SHS 5 are sent to the control inputs of the registers 2 of the synchronous group of channels. As a result, information is written to the selected registers 2,

identical to the information recorded in the register 2-1 of the master channel of the synchronous group.

Simultaneously, the output signals of the same elements OR 5 arrive at the corresponding outputs C. reset, As a result, requests for a synchronous group of channels are reset. When the device is operated on the basis of the pre-closure of the corresponding keys of groups 7 and 8, several synchronous groups of channels for the formation of functions can be formed. The maximum number of such groups is determined by the number of line 4 bus lines.

Thus, the proposed device allows to increase the speed and dynamic accuracy of joint reproduction of functions across a number of channels by simultaneously recording information in all channels of each synchronous group.

An additional advantage of the proposed multichannel functional generator is the reduction of the memory capacity of generating homogeneous functions over a number of channels. This advantage is achieved due to the fact that the parameters of sections of a function reproduced simultaneously over a number of channels of a synchronous group are written into the cells of the memory block corresponding to the leading channel of this synchronous group of channels.

The considered organization of synchronous groups of channels is suitable for transmitting to these channels not only parametric information about the replicable functions, but also command information of the form Start channels, Stop and

etc.

Claims (1)

Invention Formula A multichannel function generator containing n function generators (where n is the number of channels) and n buffer registers connected by information inputs to the data input bus of the multichannel function generator, and the outputs with information inputs of the corresponding function generators, each of which is connected to a pulse output of the approximation portion ending and an analog output to the exchange request output and the output of the function of the corresponding channel, characterized in that, in order to increase speed, each The analog channel additionally includes a single vibrator, a group of transfer keys, a group of receive keys and an OR element, the first input of which is connected to the gate strobe input, the second input to the outputs of the receive keys, and the output to the reset output of the channel exchange request and the write enable input of the buffer register connected an additional bit output to the one-shot input, the output of which is connected to the inputs of the transfer keys; in this case, the signals of the transfer keys and the input keys of the reception channels of all channels are connected to the corresponding synchronization bus lines . Editor T.-Parfenova Compiled by S. Kazinov Tehred L. Serdyukova Order 784/54 Circulation 673 VNIIPI USSR State Committee for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5 Production and printing company, Uzhgorod, st. Design, ( FIG. Proofreader A. Zimokosov Subscription