Device for generating a control signal with a reset mode and a protective time interval

Abstract

This utility model relates to automation and computing. The technical result is the generation of a control signal based on rules defined by a logical function, with the ability to use a protective time interval and inhibit the output of the control signal through inhibiting and inhibiting input control signals. For this purpose, a control signal generation device with a reset mode and a protective time interval is proposed, containing N triggers of input signals of dangerous situations 11-1n, M signal generation blocks in accordance with given rules 21-2M, the first, second and third OR element 7, 8, 15, the first and second timers 9, 14, the first and second triggers 10, 11, the first, second and third AND elements 12, 13, 16, each signal generation block 21-2M contains a position register for setting the i-th (i=1, M) rule, consisting of triggers 31-3N, a group of N AND elements 41-4N, a group of N OR elements 51-5N, an AND element 6. 1 fig.

Description

[0001] This utility model relates to automation and computing technology and can be used to generate a control signal based on data received from information systems according to established rules in automatic systems using a reset mode and a protective time interval. The rules for generating the control signal in automatic systems are defined by a logical function of the form F(A) = A1A2 + A2A3 + A2A4 + A5A6A7 + A5A6A. This function depends on Boolean logical variables Ai (i = 1, 2, …, n), each of which corresponds to a single input information signal.

[0002] A device for generating a control signal is known [RU Patent for PM No. 166968], containing first, second and third sensors for monitoring dangerous situations, built using independent technologies for determining dangerous situations, first, second, third, fourth and fifth OR elements, a timer, first, second, third and fourth triggers, first, second, third and fourth AND elements.

[0003] The disadvantage of this device is its limited scope of application, since the control signal is generated only using the majority rule (when two out of three signals are received, a control signal is generated).

[0004] A device for generating a control signal is known [Patent of the Russian Federation for PM No. 171908], comprising a first 1, second 2 and third 3 sensors for monitoring dangerous situations, built using independent technologies for determining dangerous situations, a first and second timer 4, 5, a first, second and third triggers 6-8, a first, second, third, fourth, fifth, sixth and seventh AND elements 9-15, and a first and second OR elements 16, 17. The disadvantage of this device is its limited scope of application, since the generation of a control signal is carried out only using the majority rule (when two out of three signals are received, a control signal is generated).

[0005] A device for generating a control signal is known [RU Patent for PM No. 182956], containing N triggers for input signals of dangerous situations, M blocks for generating a signal in accordance with specified rules (where M is the number of rules for generating a signal), an OR element, each block for generating a signal contains a positional register for setting the i-th (i=1,M) rule, consisting of triggers, a group of N AND elements, a group of TV OR elements, an AND element.

[0006] However, this device has a fairly high probability of false alarms, since the generation of the control signal is carried out during the observation interval without resetting the received signals after the specified period of action of the input signal and without using the protective time interval.

[0007] The closest in technical implementation to the claimed solution is a device for generating a control signal using a reset mode [Patent of the Russian Federation for PM No. 190478], containing N triggers for input signals of dangerous situations, M signal generation blocks in accordance with specified rules (where M is the number of signal generation rules), the first OR element, each signal generation block contains a positional register for setting the i-th (i=1,M) rule consisting of N triggers, a group of N AND elements, a group of N OR elements, an AND element, an OR element.

[0008] The disadvantage of this device is that when generating a control signal, braking (protective time interval) and prohibiting the generation (output) of control signals are not used, which limits the scope of application of this device.

[0009] The purpose of creating the utility model is to expand the functional capabilities in generating a control signal based on the rules specified by the logical function by using, if necessary, a protective time interval and a prohibition on issuing a control signal through the use of inhibiting and prohibiting input control signals.

[0010] The essence of the utility model is that the proposed device generates a control signal about the occurrence of a hazardous situation in accordance with specified generation rules upon receipt of input signals during a specified input signal monitoring period. Furthermore, by using inhibiting and inhibiting input control signals, it is possible, if necessary, to delay (for the duration of the protective time interval) and prohibit the issuance of the control signal.

[0011] The stated objective is achieved in that a control signal generation device with a reset mode and a protective time interval, containing N triggers of input signals of dangerous situations, M signal generation blocks in accordance with specified rules (where M is the number of signal generation rules), first and second OR elements, a timer, each signal generation block contains a position register for setting the i-th (i=1,M) rule consisting of N triggers, a group of N AND elements, a group of N OR elements, an AND element, an OR element, wherein the information inputs of the device are connected to the corresponding inputs of the second OR element and to the inputs of the setting to a single state of the group of corresponding triggers, the output of the second OR element is connected to the start (restart) input of the timer, the output of which is connected to the inputs of the setting to a zero state of the triggers of input signals of dangerous situations,the single outputs of which are connected to the first inputs of the AND element group of all signal generation units, in each signal generation unit the single outputs of the trigger group are connected to the second inputs of the corresponding AND elements of the group, and the outputs are connected to the first inputs of the OR element group, to the second inputs of which the zero outputs of the triggers of the group are connected, the outputs of the OR element group are connected to the corresponding inputs of the AND element, the output of which is the output of the signal generation unit, the output of each signal generation unit is connected to the corresponding input of the OR element, the output of which is the output of the device, characterized in that, in order to expand the functional capabilities, a second timer, first and second triggers, a third OR element, first, second and third AND elements are introduced into the device, wherein the output of the first OR element is connected to the first input of the first and second AND element, to the second inputs of which the single and zero output of the first trigger is connected, respectively,the output of the first AND element is connected to the input of the second timer, the output of which is connected to the input of the third OR element, the second input of which is connected to the output of the second AND element, and the output is connected to the first input of the third AND element, to the second input of which the zero output of the second trigger is connected, the control inputs for setting and canceling the protective time interval are connected respectively to the one and zero inputs of the first trigger, the control inputs for setting and canceling the prohibition on issuing a control signal are connected respectively to the one and zero inputs of the second trigger, the output of the third AND element is the output of the device.

[0012] Fig. 1 shows the structural diagram of the device.

[0013] The device contains N triggers of input signals of dangerous situations 11-1 N , M signal generation blocks in accordance with the specified rules 21-2 M(where M is the number of signal generation rules), the first, second and third OR elements 7, 8, 15, the first and second timers 9, 14, the first and second triggers 10, 11, the first, second and third AND elements 12, 13, 16, each signal generation block 21-2 M contains a positional register for setting the i-th (i=1,M) rule, consisting of triggers 31-3 n , a group of N elements I 41-4 N , a group of N elements OR 51-5 N , element AND 6. The figure shows the inputs of information signals 171-17 N , control inhibiting inputs 181, 182, control inhibiting inputs 191, 192, and control signal output 20.

[0014] Information signal inputs 171-17 N connected to the single inputs of the corresponding triggers 11-1 n , the single outputs of which are connected to the first inputs of the corresponding AND elements 41-4 N all signal generation blocks 21-2 M , to the second inputs of the AND elements 41-4 Neach signal generation block is connected to single outputs of triggers 313 N , the zero outputs of which are connected to the second inputs of the group of OR elements 51-5 M , the first inputs of which are connected to the outputs of the corresponding AND elements 41-4 N , outputs of the group of elements OR 51-5 N , are connected to the corresponding input of the AND element 6 of the signal generation block, the output of the AND element 6 of each signal generation block is connected to the corresponding input of the OR element 7, each information input 171-17 N connected to the corresponding input of the second OR element 8, the output of which is connected to the start input of the first timer 9, the output of which is connected to the reset inputs of triggers 11-1 n, the output of the first OR element 7 is connected to the first input of the first and second AND elements 12, 13, to the second inputs of which the one and zero output of the first trigger 10 is connected, respectively, the output of the first AND element 12 is connected to the input of the second timer 14, the output of which is connected to the input of the third OR element 15, the second input of which is connected to the output of the second AND element 13, and the output is connected to the first input of the third AND element 16, to the second input of which the zero output of the second trigger 11 is connected, the control inputs for setting 181 and canceling 182 the protective time interval are connected, respectively, to the one and zero inputs of the first trigger 10, the control inputs for setting 191 and canceling 192 the prohibition on issuing a control signal are connected, respectively, to the one and zero inputs of the second trigger 11, the output of the third AND element 16 is the output 20 of the device. The device operates as follows.

[0015] Let the rules for generating the control signal be specified by the logical function F(A)=A1A2+A2A3+A2A4+A5A6A7+A5A6A8.

[0016] For the case under consideration, eight information signals are used, i.e. N=8 and five signal generation rules: M=5.

[0017] The device output signal must be generated when input data signals are received during the reset interval:

[0018] 1) either from the first and second information systems;

[0019] 2) either from the second and third information systems;

[0020] 3) either from the second and fourth information systems;

[0021] 4) or from the fifth, sixth and seventh information systems;

[0022] 5) or from the fifth, sixth and eighth information systems.

[0023] In the initial state, triggers 11-18 are in the zero state. In the first signal generation block 21, in accordance with the first rule of control signal generation, triggers 31 and 32 are set to the single state, and the remaining triggers of the first signal generation block 21 (triggers 33-38) are set to the zero state. In the second signal generation block 22, in accordance with the second rule of control signal generation, triggers 32 and 33 are set to the single state, and the remaining triggers of the second signal generation block 22 (triggers 31, 34-38) are set to the zero state. In the third block 23 of signal formation, in accordance with the third rule of control signal formation, triggers 32 and 34 are set to the single state, and the remaining triggers of the third block 23 of signal formation (triggers 31, 33, 35-38) are set to the zero state.In the fourth signal generation block 24, in accordance with the fourth rule of control signal generation, triggers 35-37 are set to the single state, and the remaining triggers of the fourth signal generation block 24 (triggers 31-34, 38) are set to the zero state. And, finally, in the fifth signal generation block 25, in accordance with the fifth rule of control signal generation, triggers 35, 36, 38 are set to the single state, and the remaining triggers of the fifth signal generation block 25 (triggers 31-34, 37) are set to the zero state.

[0024] When a signal is received from any of the information systems via the OR element 8, a timer will be started, the duration of which is set based on the period of validity of the information signal. If no other signals are received from the information systems during the reset interval, then the received signal is considered false and is reset upon expiration of the reset interval, i.e. the corresponding trigger 1 will be set to zero by the signal from the output of timer 9. If a signal is received from another information system during the reset interval, then this signal will restart timer 9 via the OR element 8. Moreover, if the combination of received signals does not correspond to the established rules, then the control signal at the output of the device is not generated and upon expiration of the period determined by timer 9, the corresponding triggers 11-1 N will be set to zero.

[0025] Let's consider the operation of the device when generating a control signal upon receipt of information signals from the first and second systems during the reset interval. Since triggers 33-38 in the first signal generation block 21 are set to the zero state, a high potential will flow from the zero outputs of these triggers through OR elements 53-58 to the corresponding inputs of AND element 6. All inputs of AND element 6 except the first and second will be high potential, and when an information signal arrives at device inputs 101, 102, triggers 11 and 12 will be set to the single state. Since only in the first block 2 of signal formation the triggers 31 and 32 are set to the single state, then from the single output of the triggers 11, 12 through the AND elements 41, 42, OR 51 and 52 the high potential will go to the first and second inputs of the AND element 6.Since all inputs of AND element 6 will be at high potential, the high potential from the output of AND element 6 of the first signal generation block 21 will flow through OR element 7 to the inputs of AND elements 12 and 13. Depending on the receipt of the control signal "Set guard time interval" or "Cancel guard time interval" at input 181 or at input 182, trigger 10 will be set to the one or zero state. Accordingly, AND element 12 or AND 13 will be opened, and the signal to the input of OR element 15 from the output of OR element 7 will flow through AND element 12 with a delay of the time determined by the duration of timer 14, or through AND element 13 without delay. Depending on the receipt of the control signal “Set prohibition on issuing a control signal” or “Cancel prohibition on issuing a control signal” at input 191 or at input 192, trigger 11 will be set to a single or zero state.Accordingly, the AND element 16 will be opened or closed and the signal from the output of the OR element 15 will or will not arrive at the output of device 20.

[0026] Let's consider the operation of the device when generating a control signal upon receipt of information signals from the second and third systems during the reset interval. Since triggers 31, 34-38 in the second signal generation block 22 are set to the zero state, a high potential will flow from the zero outputs of these triggers through OR elements 51, 54-58 to the corresponding inputs of AND element 6. All inputs except the second and third AND element 6 will be high potential, and upon receipt of information signals 102 and 103 at the device input in any sequence during the reset interval, triggers 12 and 13 will be set to the single state. Due to the fact that only in the second signal generation block 22 the triggers 32 and 33 are set to the single state, from the single outputs of the triggers 12 and 13 through the AND elements 42 and 43, the OR elements 52 and 53 the high potential will be supplied to the second and third inputs of the AND element 6.Since all inputs of AND element 6 are at high potential, the high potential from the output of AND element 6 of the second signal generation block 22 will be fed through OR element 7 to the inputs of AND elements 12 and 13. Depending on whether the "Set guard time interval" or "Cancel guard time interval" control signal is received at input 181 or at input 182, trigger 10 will be set to the one or zero state. Accordingly, AND element 12 or AND element 13 will be opened, and the signal from the output of OR element 7 will be fed to the input of OR element 15 through AND element 12 with a delay determined by the duration of timer 14, or through AND element 13 without delay. Depending on the receipt of the control signal “Set prohibition on issuing a control signal” or “Cancel prohibition on issuing a control signal” at input 191 or at input 192, trigger 11 will be set to a single or zero state.Accordingly, the AND element 16 will be opened or closed and the signal from the output of the OR element 15 will or will not arrive at the output of device 20.

[0027] Similarly, the device operates when generating a control signal in accordance with rules 3, 4, 5.

[0028] The technical result of the proposed technical solution is that the use of braking and prohibiting control signals when generating a control signal in automatic systems according to the rules specified by a logical function of the form F(A)=A1A2+A2A3+A2A4+A5A6A7+A5A6A8 makes it possible to significantly expand the scope of use of the proposed device.

[0029] Thus, the stated goal - expansion of functional capabilities in the formation of a control signal based on the rules specified by the logical function - has been achieved.

Claims

A control signal generator with a reset mode and a protective time interval, containing N triggers (11-1 N ) input signals of dangerous situations, intended for recording, storing and issuing signals received from information systems, M signal generation blocks (21-2 М ) in accordance with the specified rules (where M is the number of signal generation rules), each of which ensures the generation of a dangerous situation signal in accordance with the rules established in the initial data, the first OR element (7), which ensures the combination of the final signal generated in any of the blocks (21-2 М), the second OR element (8), which ensures that upon receipt of any input signal the first timer is started, the first timer (9), the duration of which is determined based on the input signal validity period specified in the initial data and which is intended to reset the received signal in the event of no other input signals being received during the reset interval, each signal generation block (21-2 М ) contains a positional register for setting the i-th (i=1,M) rule, consisting of N triggers (31-3 N ), designed to record and store the rules for generating signals about the occurrence of a dangerous situation, a group of N elements I (41-4 N ), a group of N elements OR (51-5 N ), the AND element (6), and the information inputs of the device are connected to the corresponding inputs of the second OR element (8) and to the inputs of the group of corresponding triggers (11-1) for setting them to a single state. N) signals of dangerous situations, the output of the second OR element (8) is connected to the start input of the first timer (9), the output of which is connected to the inputs of the zero state setting of the triggers of the input signals of dangerous situations (11-1 N ), the single outputs of which are connected to the first inputs of the corresponding AND elements (41-4 N ) all signal generation blocks (21-2 M ), in each signal generation block, single outputs of the trigger group (31-3 N ) are connected to the second inputs of the corresponding AND elements (41-4 N ), the outputs of which are connected to the first inputs of the group of OR elements (51-5 N ), to the second inputs of which the zero outputs of the triggers are connected (31-3 N ), outputs of the group of OR elements (51-5 N ) are connected to the corresponding inputs of the AND element (6), the output of which is the output of the signal generation block (21-2 M ), the output of each signal generation block (21-2 M) is connected to the corresponding input of the first OR element (7), characterized in that a second timer (14) is introduced into the device, which provides a delay for the time of the duration of the protective time interval specified in the initial data, a trigger (10), which, depending on the state, sets or cancels the protective time interval, a second trigger (11), which, depending on the state, allows or prohibits the output of the generated control signal, a third OR element (15), the first, second AND elements controlled by the first trigger (10), a third AND elements (16), controlled by the second trigger (AND), wherein the output of the first OR element (7) is connected to the first input of the first and second AND elements (12, 13), to the second inputs of which the one and zero output of the first trigger (10) are connected respectively, the output of the first AND element (12) is connected to the input of the second timer (14), the output of which is connected to the input of the third OR element (15),the second input of which is connected to the output of the second AND element (13), and the output is connected to the first input of the third AND element (16), to the second input of which the zero output of the second trigger (11) is connected, the control inputs for setting and canceling the protective time interval (181, 182) are connected respectively to the one and zero inputs of the first trigger (10), the control inputs for setting and canceling the prohibition on issuing a control signal (191, 192) are connected respectively to the one and zero inputs of the second trigger (11), the output of the third AND element (16) is the output of the device.,

Images