SU1173432A1 - Objective condition warning device - Google Patents

Abstract

A SIGNALING DEVICE ABOUT THE OBJECT CONDITION, containing sensors whose outputs are connected to the inputs of the respective amplifiers, a threshold element, a display board, characterized in that, in order to simplify the device, the selector switch of the monitored sensors is entered into it, the OR element, the switch, the comparison element, the task unit signal level and signaling unit, the outputs of amplifiers combined into a unit, through a switch of choice of monitored sensors are connected to the corresponding inputs of the switch and the OR element, the output of which is n with the first inputs of the comparison element and the threshold element, the output of the signal level setting unit is connected to the second input of the threshold element, the output of which is connected to the input of the alarm unit and the first input of the board, the first output of the switch is connected to the second input of the comparison element, the output of which is connected to the second input scoreboard, the switch outputs by the number of monitored sensors i are connected to the corresponding inputs of the scoreboard. (L

Description

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The invention relates to automatic alarm and control systems, namely, object status signaling devices.

The purpose of the invention is to simplify the device.

The drawing shows a block diagram of the proposed device.

The device for signaling the state of an object contains sensors 1, an amplifier unit 2, a switch 3 for selecting monitored sensors, an OR 4 element, a switch 5, a comparison element 6, a signal level setting unit 7, a threshold element 8, board 9, and an alarm unit 10.

The device works as follows.

The sensors 1 are located on the object, the state of which is monitored. When the state of an object is disturbed, for example, when it is deformed, signals are generated in the sensors, which are amplified by an amplifier unit 2 and fed to switch 3 by the selection of monitored sensors. A switch 3 for selecting monitored sensors serves to turn on those sensors that in this case need to be monitored.

Thus, the signals from the selected sensors 1 arrive at the inputs of the element OR 4 and the switch 5. At the output of the element OR 4, the maximum of all signals coming from the sensors 1 is extracted. This maximum signal is compared by threshold element 8 with the alarm level of the alarm unit 10, in advance set by block 7 of the signal level setting. If the level of the incoming signal exceeds a predetermined level, the threshold element 8 is triggered and actuates the synchronization unit 10. For example, an audible alarm alerts the operator that an object’s state is disturbed.

Switch 5 alternately, for example, with a frequency of 10 kHz, sends signals from the sensors to the second input of the comparison element 6, and also alternately sends polling pulses to the corresponding inputs of the board 9, preparing the display indicators for exposure (the number of indicators per 0 board and the order of their connection correspond to the number of sensors 1 and the order of their connection to the reference element 8).

When the output signal of the OR 4 element coincides in magnitude with the signal that comes from the sensors through the switch 5, a control signal is output to the second input of the board 9 at the output of the comparison element b.

If the signal from the output of the element OR 4 carries information about the violation of the state 0 of the object, then the threshold element 8 also triggers, from the output of which the signal goes to the first input of the board. If there are three signals on the inputs of the board 9, the sensor number is displayed, which gives information about the violation of the object state.

By fixing the number of the sensor installed at the location of the object’s disturbance and having the maximum signal level, the operator switches off the channel with the maximum alarm signal through the switch 3, thus preparing the device to receive the maximum of the remaining alarms, etc. All sensors with a signal level higher than the threshold have been detected.

Claims (1)

SIGNALING DEVICE ABOUT THE CONDITION OF THE OBJECT, containing sensors, the outputs of which are connected to the inputs of the respective amplifiers, a threshold element, a panel, characterized in that, in order to simplify the device, it includes a switch for selecting sensors to be monitored, an OR element, a switch, a comparison element, a task unit the signal level and the signaling unit, the outputs of the amplifiers combined in the unit, through the switch for the selection of monitored sensors, are connected to the corresponding inputs of the switch and the OR element, the output of which is connected to the the input inputs of the comparison element and the threshold element, the output of the signal level setting unit is connected to the second input of the threshold element, the output of which is connected to the input of the alarm unit and the first input of the scoreboard, the first output of the switch is connected to the second input of the comparison element, the output of which is connected to the second input of the scoreboard, the outputs of the switch according to the number of monitored sensors are connected to the corresponding inputs of the scoreboard.