SU943791A2 - Signalling device - Google Patents

Description

The invention relates to automation and can be used in control systems with position sensors, in ship alarm systems, and in production process control systems.

According to the main author. St. 758216, a signaling device is known, comprising sensors, memory elements, the first inputs of which are combined, the output of one of the memory elements is connected to the input of the AND element, the output of which is connected to one of the inputs of the first OR element, the output of which is connected through an amplifier with a signaling device, the output of the memory element is connected directly and through a single vibrator to the inputs of the second element OR, the output of which is connected to the third input of one memory element and the third input of the first element OR, the sensor is connected to the first input of the element memories whose second inputs are combined and connected to the handshake input of device 1.

The disadvantage of this device for signaling is that it does not select the signal from the sensor according to the duration of exposure, but responds to any instantaneous deviation of the monitored parameter in amplitude, not taking into account possible time intervals of the deviations of the recorded useful signals.

The purpose of the invention is to expand the functional possibilities of the device.

The goal is achieved

10 in that the second and third elements AND, the second and third one-shot, inverters, the third element OR, the output of one memory element are directly connected to the first "4th input of the second element AND, and connected via the second one to the input of the first an inverter whose output is directly connected to the first input

20 of the third OR element and through the third one-shot one connected to the first input of the third AND element, the output of which is connected to the fourth input of one memory element, the power supply bus is connected to the second input of the second element. And the output of which through the second inverter is connected to the second the input of the third element And directly connected

Claims (1)

30 with the second input of the third element IL1 whose output is connected to the third input of the first element I. In addition, one memory element contains the OR element, the first input of which is connected to the first input of one memory element, the output of the OR element is connected to the first "input of the element And, the output of which is connected to the second input of the OR element and to the output of one memory element, the second input of which through the first inverter is connected to the second input of the AND element, the third input of the sad memory element is connected via the second .inverter to the third input coagulant and the third inverter, the input kotorog connected to fourth input of one memory element, the output of the third inverter is connected to the fourth element .The inputs I. Figure 1 shows a diagram of the device for signalieatsii; 2, timing diagrams for devices. The signaling device contains elements 1 and 2 of memory, elements 3-5 AND, elements 6-8 OR, inverters 9 and 10, one-shot 11-13, amplifier 14, signal lamp 15, sensors 16. Memory element 1 consists of element 17 OR, inverters 18-20, element 21 I. Memory element 2 consists of element 22 OR and one-shot 23. Time diagrams are given for four variants of device A operation - the signal duration from the sensor is 1 less than the time interval of the useful signal; B - the duration of the signal from the sensor instantly exceeds the time interval of the useful signal; B - the duration of the time interval of the useful signal tends to zero; Г The duration of the signal from the sensor is much longer than the time interval of the useful signal. The time diagrams show the signals: a - at the output of the sensor; b - at the output of the first element 1; in - at the output of the one-shot 1 g - at the output of the element 4 I; d - at the output of the one-shot 10; e - from the power supply bus; W - from the output of one vibrator 13; and - from the output of the element 5 And; k - from the exit of the eleven 8 OR l - from the flashing light bus; m - from the output of the amplifier 14; n - acknowledgment; p - from the output of the one-shot 17; The device for signaling works as follows. In the initial state at the output of the sensor 16, the signal O is, respectively, at the first input of the memory element 1 and the second input of the element 2. Since the signal is not acknowledged, there is a signal O at the second input of the memory element 1 and the first input of the memory 2 element. At the outputs of the memory elements 1 and 2 there is also an O signal. during element 4 AND and element b OR signal O. Signal lamp 15 is off. At the output of element 4 I, at the second input of element 5 I and, therefore, at the fourth input of element 1 of memory signal O. At the first input of element 5 AND, the second input of element 8 OR and at the third input of element 3 AND signal. At the second input of elements 6 and 8 OR, and at the third input of memory 1, the signal is O. In variants A, B and D, the specified time interval of the useful signal is determined by the sum of the pulse durations produced by the second and third 12 m single-oscillators 13. In addition, in these embodiments, the first input of element 4 I is connected to the low potential power supply bus, t. e. at the first input of the element 4 And all the time comes the signal O. From here on the primary input of the element 5 And all the time there is a Signal. When the monitored parameter is rejected from the norm, the sensor 1 outputs a signal (figure 2 a - A, B, D). Memory element 8 is switched and a signal appears at its output (Fig. 26 - A, B, D). Under the action of a positive differential from O to H, the one-shot 12 produces a single pulse (Fig. 42c - A, B, D). Thus, the first input of element 8 OR comes. Signal O (fig.2g - A, B, D), since the first input of element 4 And the signal O (fig.2e - A, B, D) from the source bus nutrition with low potential. To the second input element 8 OR and to the input of the one-shot 13 comes an inverted signal from the one-shot 12 (figd - A, B, D). Under the action of a positive differential from O to the one-shot 13 produces a short unit impulse, which is fed to the second input of the element 5 I (Fig. 2g - A, B, D). Since a signal arrives at the first input of element 5 I, a short unit impulse arrives at the fourth input of memory element 1 (Figs. 2i - A, B, D). If the signal coming from the sensor is less than the time interval of the useful signal (option A), - Ie. less than the sum of the durations of the pulses produced by the single vibrators 12 and 13, the memory element 2 enters the state O under the action of a single pulse on its fourth input earlier than the effect of the single vibrators 12, 13, 9 and 14, i.e. the third input of element 3 And during the whole time of action of the pulses of single vibrators 12 and 13, a signal arrives (fg.2k - A, B, D). the longest by the duration of a single signal coming from the output of memory element 1 to the second input of element 3 And, the first input of which receives a pulsating signal from the light of the bus light (fig.2l-- A, B, D). At the output of element 3 and the signal O. The signal lamp 15 is not lit. The device has returned to its original state. If the signal arriving from the sensor exceeds the time interval (option C, D), then the single signal coming from the output of the memory element 1 (Fig.26 - B, D) is greater than the sum of the durations of the pulses of one-shot 12 and 13. Therefore, after their termination at the second and third inputs of element 3, the signal. At the output of element 3 AND, element 6 OR, a signal appears with the frequency of the signal on the flashing light bus. The LED lamp 15 is blinking (figure 2m - B, D). The operator acknowledges the signal of the occurrence of a malfunction, while a pulse signal is received at the second input of the memory element 1 and the first input of the memory element 2 (Fig.2n A, B, D). This signal switches memory element 2. At its output, the third input signal of memory 1 is transmitted through element 7 of the IL, a signal is received, and the memory element switches, and an O signal appears at its output. At the output of element 3 AND the signal O. At the first input of element 6 OR signal O, At the output of the second - signal of the element b OR signal, and the lamp 15 lights with a constant light (Fig. 2m - D) until the parameter being monitored again returns to normal. At the same time, from the sensor 16 to the inputs of the elements 1 and 2 of the memory comes and then with a frequency and a signal with the duration of the bounce of the contact of the sensor 16 - the signal i (Fig. 2 The memory element 2 switches, and an O signal appears at its output. In view of this signal, one vibrator 11 generates a pulse signal 2 with a duration longer than the sensor contact time (Fig. 2p-D). The output of the second element 7 OR signal i remains for the time of the single vibrator pulse 11. Signal 1 with the frequency and duration of contact bounce sensor 16 is fed to the input of the element 1 p mi, but The memory element 1 is not switched, since the third input of the sensor 21, connected to the inverter 19, the signal O, i.e., the output of element 21 And the signal O After the end of the one-shot impulse 11 on both inputs of element 6 OR signal O. Signal lamp 15 goes out, if the monitored parameter returns to normal before the fault has been acknowledged (variant B), then the output of memory 1 remains the signal and the warning light 15 is flashing light (figm-B). From the handshake device, a pulse signal (Fig. 2n-B) is fed to the second input of the memory element 1 and the first input of the memory element 2. At the output of memory element 2, the signal O remains, since the first input is fed to the signal O. The memory element 1 is switched to the output of the acknowledgment signal and at its output. The signal is O. At the output of element 3 And the input signal b OR also signal O. The signal lamp 15 goes out (Fig. 2m - B). For operation of the device in option B, the first input of element 4 -I is connected to the high-potential power supply bus, i.e. At the first input of the element 4 AND (8) a constant signal H (Fig. 2e - B). When the monitored parameter deviates from the norm, the sensor 16 generates a signal (Fig. 2a - B). The memory element 1 switches, and a signal appears at its output (Fig. 26-B), which is fed to the second input of elements 3 and 4 AND and to the input of the single-oscillator 12. Under the effect of a positive differential from to H, the single vibrator 12 produces a single pulse (figv - B), which, inverted (fig.2d - B), is fed to the input of the one-shot 13 and to the second input of the element 8 OR, the first input of which receives a constant signal i (fig.2g - B), since the first input element 4 And comes a constant single signal. (Fig. Ze - B). Under the action of the difference from O to the one-shot 13, a short unit impulse is produced (fig.2zh - B), which does not arrive at the fourth input of memory element 1 (2) (fig.2p - B), since at the first input of the third element 5 AND a constant signal comes O- At the fourth input of memory element 1, the signal is O, at the fourth input of element 21 and a signal, the memory element 1 does not. switches. From the output of element 8 OR to the third input of the first element 3 And a constant signal comes. At the output of the first element 6 OR signal, with the frequency of the signal on the tire mnagakogo light (fig.2l - c). The lamp 15 is lit with a flashing light (figm - In). The operator acknowledges the signal for faults, i.e. produces, on the second internal memory unit of the memory element 1 and the first input of the memory element 2, a pulsed single signal (Fig. 2B). The monitored parameter entered normal before the alarm signal was acknowledged when confirming the signal lamp 15 racHei If the controllers did not return to normal before the time of acknowledgment, then when acknowledging the signal LS1mpa 15 from the 1st light mode of the luminescence switches to a constant luminescence mode. , and the lamp 15 goes out only when the monitored parameter returns to normal. Claims 1. Device for signaling by author. St. No. 758216, which is distinguished by the fact that, in order to expand the functionality of the device, the second and third elements AND, the second and third single-vibrators, inverters, the third OR element, the output of one memory element directly to the first input of the second element And through the second one-shot connect the source nutrition / 1 to bus , G // with the input of the first inverter, the output of which is directly connected to the first input of the third element And, the output of which is connected to the fourth input of one memory element, the power supply bus is connected to the second input of the second element And | the output of which is connected via the second inverter to the second input of the third element I and directly connected to the second input of the third element OR, the output of which is connected to the third input of the first element I. 2, The device in claim 1, characterized in that one memory element contains the element OR, the first input of which is connected to the first input of one memory element, the output of the OR element is connected to the first input of the AND element, the output of which is connected to the second input of the OR element and to the output of one memory element, the second input of which through The first inverter is connected to the second input of the element I, the third input of one memory element through the second inverter is connected to the third input of the element I, the third inverter whose input is connected to the fourth input of one memory element, the output of the third inverter is connected to the fourth input of element I. Sources information taken into account during the examination 1. USSR author's certificate 758216, cl. G 08 B 23/00, 1975.