RU1800447C - Device for checking parameters - Google Patents

Abstract

The invention allows monitoring a wide range of parameters of electronic circuits, including monitoring constant voltage and detecting short-term failures by introducing into the system a control unit, a driver of control signals into a synchronization unit, and a driver into a control unit. The system comprises a control computer, an operator console, an input / output unit, a mode control unit, controlling the system operation modes, an address register block, an input information register block that generates digital information for the control object, key management signals of the first, second and third switches , control signals of blocks of stimulating, reference signals, block of meters, block of register of output code, block of stimulating signals generating analog and pulse signals to the object of control l, a block of output information registers intended for storing digital information coming from the control object and the meter block, a synchronization block that provides synchronization of the operation of the entire system, a meter block designed to measure the input and output signals of the control object, a block of reference signals generating signals for providing self-monitoring of the system, the first switch designed to carry out self-monitoring of the system during the execution of the main program of monitoring the object, the second mmutator for switching input-output control object and switching its inputs to its outputs with the self-control system, the third switch adapted for switching digital serial code and tracking signals with the control object to the register output information control unit for controlling the analog inputs and outputs a control object. 2 ill. SO C so about about XI

Description

The invention relates to automation and computer engineering, in particular to control systems for digital-to-analog, analog-to-digital, digital and analog components of electronic equipment.

The purpose of the invention is to expand the functionality by ensuring compatibility of the control with the operating modes of the host computer.

Figure 1 shows a block diagram of a device for monitoring parameters.

The parameter monitoring device comprises a pulse generator 1, a PROHIBIT 2 element, an address counter 3, executed on

microchips, for example, 133 series, the first and second memory blocks 4, built using microchips, for example, type 541 RU2, address decoder 5, from the first to third group of elements And 6, consisting of open-collector circuits, for example 133 LA8 , the first and second digital-to-analog converters 7, for example, type 594 PA1, a switch 8 using microcircuits, for example, type 543 КНЗ, a voltage source 9 using microcircuits of a series 142, the first and second comparators 10, made on microcircuits of type 521 SAZ, OR element, 1 1 and the first and second trig EASURES 12. The control object 13 is not part of a device is shown for explaining the principle of its operation.

The parameter control device operates as follows.

The analog inputs and outputs of the monitoring object are fed to the analog inputs of the parameter monitoring device, in which, in accordance with the previously recorded program from the CMM, the monitoring is compared with the permissible values. If any voltage deviates from the tolerance, the parameter control device generates an Interrupt signal to the UVM.

The parameter control device operates in two modes: in the mode of recording information from the computer and in the mode of voltage control.

In the mode of recording information from the UVM, the information on the number of the monitored voltage is recorded in the counter 3 to the counter 3, information on the minimum permissible and maximum permissible voltage is recorded in the first and second memory blocks 4 at the address set on the meter and through the second group elements AND reads recorded information for self-monitoring.

On the start command, which arrives at one of the control inputs, the second flip-flop 12 is charged and the parameter monitoring device is switched to the monitoring mode. The monitored voltages are fed through the analog inputs and are connected through the switch 8 to two comparators 10, which compare the connected voltage with the permissible values. The permissible voltage values are set by two digital-to-analog converters 7 in accordance with the information received from the memory units. The reference voltage for converter 7 is set by source 9.

The address for the memory blocks 4 and for the switch 8 is simultaneously set by the counter $ through the decoder 5, which is started in the control mode from the pulse generator 1 through the element BAN 2 and stops when the Break command is received from the first trigger, which is started via the OR 11 circuit from the signals comparators. The voltage is monitored until the Reset command for the first and second triggers is received from the ATM.

The parameter control device, for example, can operate in an automated system for controlling the parameters of electronic circuits with UVM, shown in Fig.2.

In FIG. 2 shows a block diagram of an automated system for monitoring the parameters of electronic circuits.

The automated parameter control system comprises a universal computer 14, information and control inputs and outputs associated with an input / output unit 15, an input information register unit 16, an address register unit 17, a first switch 18, a mode control unit 19, a synchronization unit 20, a block 21 of the output information registers, a parameter control device 22, a stimulating signal block 23 and a meter block 24 connected through the second switch 25 to the control object 13. The system also includes a reference signal setting unit 26 connected to an input information register unit 16 and a second switch 25, a third switch 27 connected by information inputs to the monitoring object 13, and an operator panel 28 connected to the mode control unit. Moreover, the outputs of the address register block 17 are connected to the first switch 18 and the inputs of the synchronization block 20, the outputs of the synchronization block 20 are connected to the block 16 of the input information registers, the block 23 of stimulating signals, the block 21 of the output information registers, the block 24 of the meters, the parameter monitoring device 22. The outputs of the input information register unit 16 are connected to the stimulating signal unit 23 to the first switch 18, the second switch 25, the reference signal setting unit 26, the third switch 27, the output information register unit 21, and the meter unit 24.

As the control computer 14, any serial microcomputer, for example, Electronics NTs-OZD, or a machine built on microprocessor manufactured by the domestic industry, can be used

LSI kits; (for example, series K580, K589).

Claims (1)

Using the invention, in relation to the known solution, it will be possible to expand the functionality by ensuring compatibility of the control with the operating modes of the host computer. SUMMARY OF THE INVENTION A parameter monitoring device comprising two comparators, a reference voltage source, the output of which is connected to the analog input of the first digital-to-analog converter, a first group of AND elements, a first trigger, the output of which is connected to the first enable input of the BAN element, a pulse generator and switch. characterized in that, in order to expand the functionality by ensuring compatibility of the control with the operating modes of the host computer, an address counter is additionally introduced into it ca, address decoder, two memory blocks, the second digital-to-analog converter, the second and third groups of AND elements, and the OR element, while the synchronizing inputs of the address counter, the first and second memory blocks, a single input of the first trigger, zero inputs of the first and second triggers, the first inputs of the elements And, respectively, the first, second and third groups are connected to the corresponding control inputs of the device, the group of digital inputs and outputs of the device is connected to the installation input of the address counter, with information inputs and the first and second memory blocks and with the outputs of the AND elements of the first, second and third groups, the output of the address counter is connected to the input of the address decoder, with the address inputs of the first and second memory blocks and bitwise with the second inputs of the AND elements of the first group, the output of the first the memory block is connected sub-bit to the second inputs of the AND elements of the second group and through the first digital-to-analog converter with the first input of the first comparator, the output of the second memory block is connected to the second inputs of the AND elements of the third group and through there is a digital-to-analog converter with the first input of the second comparator, the second inputs of the comparators are connected through the switch to a group of analog information inputs of the device, the group of outputs of the decoder is connected to the group of control inputs of the switch, the outputs of the comparators through the OR element are connected to a single input of the second trigger, the output of which is output interruption of the device is connected to the inhibit input of the element FORBID, the second enable input of which is connected to the output of the pulse generator, and the output d - with a counting input of the address counter. % g / /5 P Utzg. 2. k / . AT  %  about P FIG. i V)