SU680018A1 - Remote control device - Google Patents

Description

one

The invention relates to the field of telemechanics and is intended to collect information from dispersed objects.

A telemechanical device with a time division of communication channels is known, consisting of a control room and controlled points interrogating cyclically relevant controlled points.

The cycle of operation of such devices is divided into temporary positions reserved for interviewing one controlled item. The temporary position for the interrogation of one controlled point, in turn, is divided into two parts, one for the transfer of the number of the controlled check point, and the other for receiving information transmitted from the controlled point. After switching on the device, the control room generates the number of the first controlled point and sends it to the communication channel. The number is accepted by all controlled points. If the received number coincides with the number set for this controlled point, then the controlled item gives response information received by the dispatch center. At the moment when the response information is received, the next monitored item number is generated and polled. After the last monitored item is polled, the number of the first controlled item is generated and the polling cycle is repeated ij.

A common disadvantage of the known device is the lack of control over the operability of controlled items.

Of the known devices, the closest in technical essence to the proposed is a telecontrol device, comprising, at the control room, a generator, an output; the first output of the first distributor is connected to the corresponding inputs of the decryption and reproducing unit, the last output of the first distributor is connected to the first input of the first OR element, the output of which is connected to the input of the second distributor, the outputs of which are connected to the corresponding inputs of the number generator controlled points and teams, the output of which is through pe36. The transmitter is connected to the communication channel and to the receiver input, the output of which is connected to the selector input, the first output of which is connected to the second input of the first distributor and to the second input of the first OR element, and the second output - to the first input of the decryption and playback unit, corresponding to the inputs which is connected to the outputs of the second distributor, and the signaling unit - p. A disadvantage of the known device is the low speed, due to the considerable duration of the cycle of a complete survey of all objects, including those that do not contain new information. The aim of the invention is to improve the speed of the device. The goal is achieved by introducing AND elements, delay elements, AND-OR element, register and RS-triggers, the outputs of the second distributor connected to the first inputs of the first and second elements AND, the outputs of the first AND element to the S inputs RS- Triggers whose outputs are connected to the first inputs of the third element AND the outputs of the third element AND are connected to the inputs of the alarm unit and to the first inputs of the AND-OR element whose output is connected to the third input of the first OR element, the outputs of the second distributor to the corresponding second inputs of the second element And, the output of which is connected to the R inputs of RS flip-flops, the output of the decryption and playback unit is connected to the second inputs of the third element And through the first delay element to the second inputs of the first element And, the output of the first element OR through the second delay element is connected to the second inputs of the AND-OR element. A schematic of the device is shown in FIG. 1 and 2. The dispatch center (Fig. 1) contains: the generator 1, the first distributor 2, the first element OR 3, the shaper 4 numbers of controlled points and commands, the second distributor 5, the second delay element b, the transmitter 7, the receiver 8, the selector 9, the first element And 10, RS trig hera llj, ... 11,. the first delay element 12, the block 13 decryption and reproduction of information, the third element And 14, register 15, block 16 alarm, element AND-OR 17, the second element And 18, communication channel 19. The controlled item (figure 2) contains: receiver 20, a selector 21, a control unit 22, an information source 23, an information availability determination unit 24, a response information generator 25 and a transmitter 26. The device operates as follows. The pulses from the output of the generator 1 are fed to the input of the distributor 2 and form temporary positions for transmitting numbers of controlled points and control commands and for receiving information from controlled points. After testing one cycle by the distributor 2, the signal from its last output through the logic element OR 3, the distributor 5 is transferred to the next position. The signals from the outputs of the distributors 2 and 5 are sent to the shaper 4 numbers of controlled points and commands, which forms the corresponding code and with the transmitter 7 sends the code to the communication channel 19. The transmitted code is received at all controlled points by the receivers 20, selected and output to control units 22, but the response information is transmitted only by the controlled point to which the code is addressed. At the called controlled item, the control unit 22 outputs signals to the information source 23 and to the response information generator 25, the latter generating the response information code or generating a signal of the absence of information. From the output of the response information generator 25, the code is fed to the input of the transmitter 26, and the output of its output is sent to the communication channel 19. From the communication link -19, the code goes to the receiver 8 of the control room of the device. From the output of receiver 8, the code is fed to the input of a two-selector selector 9 g from the output. No information is sent to the reset output of the distributor 2 and through logic element 3 to the input of the distributor 5, from the second output of the selector 9, the code or the signal of the absence of information arrives to reproduction of information 13, which decrypts the received information and gives it to the consumer. In addition, block 13 outputs, if an information code or a signal for missing information is received, the Answer signal is on the second output. This sya drive through the second element I 18, whose number corresponds to the number of the called controlled item, passes to the R input of the corresponding RS flip-flop 11 ... 11, and sets it to the zero state or confirms its zero state. In the event of failure of the monitored point (due to power failure, transmitter malfunction, etc.), communication channel 19 will not be received, the information code will be received, or signals will be received that are not perceived by the decryption and reproducing unit 13 , then when receiving information

at the control station, block 13 will generate a no Answer signal; I enter the input element I 14, through which it will not pass if in the previous survey cycle this controlled item responded. In addition, the Response signal does not come to the input of the delay element 12, from the output of which, through the delay time, the signal goes to the second inputs of the first element I, the signal from the corresponding output of which goes to the S-input RS-Tpwirepa, one of. ..11, the number of which coincides with the number of the polled controlled item and sets. the last in a single state. If the next interrogation of this monitored item again does not answer, then the signal from the output of the Answer does not pass through the corresponding input of the third element AND 14 to the corresponding input of the register 15 and sets the trigger to one state, the signal will be sent to the alarm unit 16, which will notify which controlled item is out of order. In subsequent cycles of operation, when recording in the distributor 5 a number of a failed control point, the output signal of the logic element 3 is delayed by the delay element 6 for the response time of the distributor 5 and is fed to the corresponding input of the AND-OR element 17, the signal from which passes to the input of the element OR 3 and transfers the distributor 5 to the next position, i.e. This control point is skipped during polling.

If the control point did not answer only once (due to an error in the number code or for other reasons), then in the next polling cycle, the corresponding trigger 11 ... 11 (-1 is reset to the zero state and fixation of failure and exclusion from the polling cycle of the controlled item does not occur.

Trigger 12 is required to prevent triggering of register 15 triggers from a single signal. There is no answer (which can occur if the signal duration exceeds 2 or more times the trigger time ll ... llj). The reset of the triggers of the register 15 to the zero state is carried out after the elimination of the malfunction at the controlled point by applying a signal to the input R of the register 15.

Introduction to the control room of the two delay elements, the three elements AND, the RS-flip-flops, the register, the element AND-OR and the alarm unit favorably distinguishes the proposed 8001В6

. It is similar to the prototype, because it allows to quickly detect, within two cycles of the survey, WG, W of the controlled points and automatically exclude them from the survey cycle.

Claims (2)

1. The author’s sredetelstvo USSR №364011, cl. G 08 C 17/00, 05.08.70. 2. USSR author's certificate №478346, cl. G 08 C 19/28, 01.30.74 .. 5 (prototype).