SU1145322A2 - Multi-channel program-time device - Google Patents

Abstract

MULTI-CHANNEL SOFTWARE DEVICE according to author. St. No. 1057926, about the fact that, in order to expand the field of application of the device by reconfiguring channels of time intervals, a register was entered into it and, by the number of channels, the third IL and demultiplexers connected by control inputs to the outputs of the register, and information inputs to the outputs of the corresponding second OR elements, and the i-th output of each demultiplexer is connected to the input of the th third OR element.

Description

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IND Nd The invention relates to automation and computing technology and can be used in organizing multi-program operation of computers and computing systems, as well as in automated systems for synchronizing and controlling technological processes. According to the main author. St. No. 1057926 a multichannel programmodern device is known that contains a memory block, a program setting block connected by the first output to the decoder input, a control block and the number of channels the first OR elements, the first AND elements connected by the first inputs to the memory block output and with the installation the inputs of the corresponding pulse counters, by the number of channels, the elements NOT, the second elements OR, connected by the inputs to the outputs of the corresponding pulse counters, and the outputs to the input of the control unit and through the corresponding center e NOT elements - with the corresponding inputs of the program setting block and with the first inputs of the corresponding first OR elements connected by the second inputs to the inputs of the decoder, and outputs to the second inputs of the corresponding first AND elements, and the subtracting inputs of the pulse counters are connected to the output of the block control, and the input block memory. TI - with the second output of the program setting block, in which the control unit contains a pulse generator connected to the first input of the second element AND connected to the output of the control unit by the output and the BTopbw input to the output of the third OR element connected to the input of the control unit With 1 the disadvantage of the known device is the limited area of its application, due to the fact that the device has n channels, each of which has M; (, n) time interval programming programs; The overall programming quality is determined by the expression nkm. However, there are no means in the device that allow the use of programs of testing some channels for testing in other channels. If it is necessary to introduce additional programs, it is necessary to carry out reprogramming, which leads to additional hardware costs and, consequently, to a decrease in reliability. The aim of the invention is to expand the field of application of the device by reconfiguring channels of time interval processing. The goal is achieved by the fact that in a multichannel program-modern device, a register is listed and, according to the number of channels, OR elements and multiplexers. inputs connected to the outputs are connected to the outputs per.-icijja, and information inputs to the outputs of the corresponding second OR elements, and the i-th output of each demultiplexer is connected to the input i-ro of the third OR element. In FIG. 1 shows the functional scheme of the device; in fig. 2 Fupg .AI-onal demultiplexer circuit. The multichannel program-time device (Fig. 1) contains a program setting block 1, a memory block 2, a decoder 3, a control block 4 comprising a generator of 5 clock pulses, a third element OR 6 and a second element AND 7, the first elements OR (where - number of channels), first elements AND 9 9j, counters, second OR elements, NOT elements, register 13, demulti1 (sheksory, third elements) OR ,, device control input 16 and device outputs 17, -) 7g. The demultiplexer (Fig. 2) contains, in addition, a decoder 18 and third elements .19 -19n- "ii. The device works as follows: In block 1 of the task I programs I store time interval training programs in the channels and time interval data codes . In the initial state, the memory elements of the device are in the zero state. At the outputs of the elements NOT 12–12 "| there are signals arriving at the input of the cell 1 of the program task. Simultaneously, the signal of logical unity; s from the output of elements NOT 12–12 "| comes through the elements OR 8, -8, nor the inputs of the elements AND, and thereby permits passing (recording); time interval codes to the counter The buffer element for the istpoaanHCH code of the processed variable intervals in the channels from (program setting block 1 to the corresponding counter. In counters 10 iOj, time interval codes are entered by selecting the appropriate counter from the output of the decoder 3. The counters are different from zero if according to There is a potential signal at the outputs of the corresponding elements OR, reflecting the start of time sequence processing. If the time intervals are directly processed (i.e., the first channel processes the program of the first channel, the second channel - the second, etc. ), then the register 13 remains in the left-handed state. In this case, the current signal from the output of the corresponding OR element from the group of OR elements through the corresponding 1 1 1, 1st demultiplexer from the group of demultiplexers and the corresponding OR element from the group of OR elements is fed to the corresponding output of the device. With the beginning of the time interval processing at the output of the element OR 6 of the control unit 4, a signal appears allowing the passage of 5 clock pulses from the generator output through the element 7 of the pulses to the subtractive inputs of the counters. With the arrival of the next clock pulse, the state of the counters changes from. The signals of the processing time intervals ng. The devices will exit until the corresponding DOUBLE-1 counter is set to zero. After the counter is zeroed at the output of the corresponding OR element from the group of ISh elements, the potential signal disappears, the Lanny signal also disappears at the devices output. Loss of a signal characterizes the end of the time interval robbing of the data. A signal of logical unity 1 appears at the output of the corresponding element, NOT of the element group. This signal arrives at the input of the program setting unit 1 and signals the end of the time interval for this channel, and through the corresponding element OR of the element group OR 8, -8р - to the input of the element And from the group of elements AND, permitting the recording of the next code of the time interval for the processing in the given channel. If during the operation of the device it becomes necessary to promptly stop the processing of time intervals in one or several channels, then for this purpose the corresponding code is supplied to the control input 16 of the device. From one of the outputs of the decoder 18 (Fig. 2), a single signal is fed to the control input of the AND 19 element. The output of the element 19 with the output of the demultiplexer is not connected, as a result of which information on the processing of the time interval in this channel is not output to the device. This allows you to quickly stop the processing of time intervals in the corresponding channels, for example, in case of emergency situations on the control object. After zeroing the counters, the signal at the output of control unit 4 is equal to a logical zero, since the signal from the output of the MI 6 element of control unit 4 prohibits the passage of clock pulses through element And 7 from the generator output to 5 clock pulses. This completes the processing of time slot programs in the channels. If it is necessary to issue time adjustment programs for these channels to others, the corresponding setup code is supplied to the control input 16 of the device. This mode of operation is necessary for the following reasons to us. .. Firstly, for the i-ro channel (it is possible to work out the programs of time intervals not only of your channel, but also of programs recorded for other channels. This allows you to expand the scope of the device, since any channel can work all Secondly, if, in addition to the basic codes, a certain number of additional codes are provided for by the development program, then, for example, the memory of one or several channels will fail, the channels may be reconfigured so that the failed channels will ops specific lot of additional

programs. This enhances the reliability of the device and, as a result, expands its area when |

Thirdly, by setting a code, settings can be made to quickly stop the processing of programs: in a particular channel, for example, in emergency situations at control objects. This also leads to an increase in the reliability of the system and, consequently, to an expansion in the field of application of the device.

The tuning code from the register 13 output goes to the control inputs of the demultiplexer unit (see Fig.2), on the decoder 18 of each demultiplexer, the tuner code is converted from positional to unitary, i.e. for each code, the decoder for the corresponding channel is required output channel (an example of channel reconfiguration is presented in the table). For example, if the code is zero, the reconfiguration of the channels does not occur, in this case, the programs Bj) eMeHHHx of the first intervals;

to the first channel, the programs of the second channel - to the second, and so on.

For a binary setup code of the form 00011 (decimal code 3), the program of the first channel is assigned to the second channel, the program of the second one to the first channel, and the third program to the third one .;

Thus, the use of a full set of time slot programs for certain channels allows for expanding the functionality of the device, and therefore; and field of use.

The invention allows operational shutdowns of program processing in separate.

and in the device as a whole, for example, in the case of emergency situations at the control facilities, which expands the scope of the proposed device.

. In addition, in case of memory failures, in which n) programs of time interval processing in separate channels are stored, by appropriate reconfiguration, work in these channels can be continued at the expense of programs of other channels.

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Claims (1)

MULTI-CHANNEL SOFTWARE DEVICE by ed. St. No. 1057926, characterized in that, in order to expand the scope of the device by reconfiguring the channels for working out time intervals, a register is entered into it and, according to the number of channels, the third OR elements and demultiplexers connected by control inputs to the outputs of the register *, and information inputs to the outputs of the corresponding second OR elements, the i-th output of each demultiplexer connected to the input of the i-th third OR element. 1 1145322