SU714461A2 - Multichannel monitoring device - Google Patents

Description

(54) DEVICE FOR MULTICHANNEL CONTROL

I

The invention is intended for use in the field of automatisation and ;. It can perform the functions of multipoint monitoring of parameters according to the amplitude-frequency signals of sensors. According to the basic author. St. No. 426238, a device containing a multi-channel AC switch, the first two inputs of which are connected cooTBeTCTEseHHo to the outputs of the distributor of the first coordinate of the matrix and the distributor of the second coordinate of the matrix, the first input of the distributor of the first coordinate of the matrix, is connected to the output of the clock generator, whose input is connected to one from the outputs of the remote control circuit, the second output of which is connected to the second inputs of the distributors of the first and second coordinates of the matrix, the third inputs of which are connected no their second outputs are connected to the first two inputs of the indicator, the third output, the distributor of the first

2

matrix ordinates are connected to the first input of the distributor of the second coordinate; the analyzer output is connected to the first input of the node of the emergency protection and the input of the deviation output unit, in the information, the output of the last

. connected to the second input of the automatic control circuit of the work, the second input of which is connected to the second input of the emergency protection node, distribution. The third coordinate of the matrix, the first input of which is connected to the third, the output of the second matrix coordinate, the second input with the second input of the second coordinate distributor, the third, With the third input of the second coordinate coordinate and the second output of the automatic control circuit, the second input which is connected to the tert-tm-tm output of the distributor of the third coordinate of the matrix, the second output of the distributor Tj) of the matrix matrix is connected to the third input of the switch, the output

which, as well as the third output of the remote control circuit and the first HbiXoa automatic control circuit Wi fiif, correspond to the number of the analyzer 1.

The disadvantage of the known device is that the connection of the sensors through the UV switch to the analyzer input is performed at a consistently constant speed. The time of the sensor signal analyzer is inversely proportional to the frequency of the signal, yes, of the switch and is set by the frequency of the clock generator, which is chosen to be constant enough to monitor the sensor with the lowest frequency of the sensor signal.

With a large variation in the frequency of the sensor signals, a large excess of time appears, which reduces the speed at which the sensors are switched.

The purpose of the invention is to increase the speed of the device.

This goal is achieved by the fact that in the device for multichannel control according to the author's testimony fs 426236 v.1vodёn1 relay player, element I and shaper impulse fornT6 a, 6diy, whose output ps is connected to the auxiliary input of the clock generator, another output is connected to the fourth socket. analyzer and through the time relay - with the first input of the element OR, to the second iSixOfly of which the additional output of the analyzer is connected, the output of the element OR: connected to the input of the start pulse generator.

The introduction of additional elements of the connection allows, immediately after measuring the signal parameter, to form a path mnpbct itpi ifoSi 6 f, there is no excess time in the period of the cycle7 so; The solver is determined, but it is determined by the parameter Signal.

The drawing shows the structure of the device, which contains the switch 1, the generator of clock pulses 2, distribution, the right device, the second and third coordinates of the matrix, 3, 4, 5, indicator 6, analyzer 7, the unit for issuing deviations of information 8, node alarm 9, automatic control circuit 1O, remote control 11, time relay 12, elemeno. OR 13, start pulse shaper 14.

The device works as follows.

Clock generator 2 sets a variable polling duration

addresses recruited by the distributors of the first, second and third coordinates of the matrix 3, 4, 5, which are connected in series with each other. The distributor code identifies the address of the input sensor connected through switch 1 to the analyzer 7. Indicator 6 displays this address in visual form. Analyzer 7 in the event of the output of any of the parameters generates a signal

to the information output deviating unit 8 and to the alarm node 9. Immediately after measuring the parameter in the analyzer 7, a pulse is generated which passes through the OR 13 element,

starts the start pulse shaper 14, which brings the time relay 12 and the analyzer 7 to the initial state, and also starts the clock 2, which

generates a clock pulse. If the analyzer does not receive a signal for a certain time, this can be either when there is no input signal on the analyzer, or when the input signal tacTOTa is below the operating frequency range, which is determined mainly by time 12, the signal comes from time relay element OR 13 and further on shaper

the start pulse 14, which sets the analyzer 7 and the time relay 12 to the initial state, and also starts the geyator, clock pulses 2. The information output deviation unit b processes the data of the analyzer 7 and outputs a deviation signal to external circuits. The alarm node 9 generates a signal to external circuits in the case of dialing a certain combination of deviation signals. The output pulse from the output of the distributor of the third coordinate of the matrix 5 is fed to the automatic control circuit 10, which, after the arrival of a certain

the numbers of such IC1 pulses automatically monitor the device's performance; to do this, simulation signals are sent to the input of the analyzer 7. After dialing all the signals

autocontrol is stopped and the circuit is switched to the main operation mode. The automatic control circuit 10 at the end of the control resets the distributors of the first, second, and third coordinates of the matrix 3, 4, 5 to the initial state, and during the autocontrol process locks the alarm node.

The remote control circuit 11, when commanded from outside, switches the device to the remote control mode &. In this case, the distributors of the first, second and third coordinates of the matrix 3, 4, 5 are reset, the frequency of the clock generator is set by an external generator, the analyzer is switched to the signal broadcasting mode, and through the information output unit the external circuits receive a signal directly from the monitored sensor.

The introduction of additional elements provides the minimum required time for monitoring the input parameters for a given measurement accuracy and allows to increase the device speed to a greater extent, the wider the range of input parameters.

Claims (1)

1. USSR author's certificate number 426236, cl. q 08 C 19/28, 06.07.71 (prototype).