SU1234865A2 - Device for reception of supervisory control and indication commands - Google Patents

Abstract

The invention relates to the field of automation of production processes and can be applied in telemechanics devices with time separation of signals that perform the functions of telecontrol and remote signaling and is an improvement of the known device according to the author's certificate No. 674077. In this device, an additional address setting device is introduced, which inputs can be set to the position specifying the address of the controlled item. In this case, the drive and the decryptor will not participate in the reception of the address code. 1 il. u oo 4 00 O5 ate

Description

The invention relates to the field of automation of production processes and can be applied in telemechanics devices with a time division of signals.

The purpose of the invention is to simplify the device by reducing the storage capacity.

The drawing shows a diagram of the device.

The device comprises a motion pulse generator 1, a gating pulse shaper 2, a valve 3, a first group of elements AND 4, a drive 5, information input 6 of the device, a decoder 7, a second group of elements AND 8, a third group of elements AND 9, an element OR 10, inequality element 11, element 12, code characteristic analyzer 13, synchronizing the distributor output 14, address gateway 15, whose inputs are connected to the outputs 16 of the distributor 3 intended for receiving the address code elements, and the outputs through the OR 10 element with the input element NECUMNITY 11, defining the inputs 17 of the device.

The device works as follows.

The generator 1 generates a sequence of pulses, which are fed to the input of the distributor 3 and the input of the driver 2 gating pulses. The shaper 2 gating pulses during each pulse received at its input produces two time-shifted short pulses.

Thus, the gating pulse shaper 2 generates two sequences of phase shifted pulses, with the pulses slightly ahead of the second output pulses at the first output.

When the input to the distributor 3 is received, the pulses of the generator 1 cause its switching in such a way that pulses appear on its outputs successively in time. In elements 4 and 4, the output signals of the distributor 3 are built to receive the information code elements (except the address code elements) by signals from the first output of the driver 2 gating pulses. Thus, at the outputs of the first group of elements I 4, the first gating pulses appear alternately in time, which arrive at the inputs of the storage cells of accumulator 5 (the number of cells of accumulator 5 is equal to the number of code elements of its information part, without address elements). The common input of the drive 5 through the information input of the device 6 receives a series of pulses of the received code. Depending on the presence in this series of the signal “O or” 1 during the signal arriving at the individual input in each cell of accumulator 5, it is turned on or off. The correctness of the performance of its function with each cell of accumulator 5 is checked with the help of the second

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Groups of elements AND 8, element OR 10, element UNEQUALITY 11, and element AND 12. In the first group of elements AND 8, the state signals of the corresponding cells of 1 accumulator 5 are generated during signals of the same output of distributor 3. Through element OR 10 these signals are collected one input of the element is UNIQUENESS 1 1, the other input receives a series of pulses of the received code.

The UNEQUALITY element 11 determines whether the state of each cell of accumulator 5 corresponds to the value of a signal in a series of pulses of a received code. The signal at the output of the element UNEQUALITY 11 appears in the event of a mismatch. Since the switching on of the cells of accumulator 5 occurs during the pulses of the first output of the gating pulse shaper 2, the analysis of the state of these cells makes sense only after the first gating pulse. In view of this, the signal from the output of the UNEQUALITY element 11 is gated by a pulse from the second output of the driver 2 gating pulses with the help of the element I 12 and from its output goes to one of the inputs of the analyzer 13 of the code feature. Similarly, determination of the correspondence of the states of the accumulator cells to 5 values of signals of a series of pulses of a received code in a second transmission occurs using the second group of elements AND 9, whose outputs also through the element OR 10 arrive at the input of the element UNEQUALABILITY 11. Finding a series of pulses of the received address presence code performs the same scheme NECESSARY 11, to the input of which through the element OR 10 with the help of the sensor 15 addresses certain outputs 16 of the distributor 3 are connected, intended to receive this ementov address code.

Suppose that the address code is 0110, i.e., the second and third of the outputs of the distributor 3, intended for receiving the address code elements, are connected to the output of the address setting device 15. In this case, the device for receiving commands TU and TC perceives only that series of information pulses of the received code, in which the address part is represented by code 0110. In any other combination of "O and" 1, in the address part, the UNEQUALITY element AND reveals a mismatch of the received Address code expected 0110.

The two other inputs of the analyzer 13 of the code feature receives a series of pulses from the information input 6 of the device and from the last output 14 of the distributor.

In the code feature analyzer 13, the code is analyzed according to its code features in each transmission, as well as the analysis of the common-mode operation of the distributor 3 of the receiving and transmitting devices.

During normal operation of the device and in the series of pulses of the received code, the elements of the expected address at the output of the analyzer 13 of the code pulse at the time of arrival of the signal from the last output 14 of the distributor 3 appear a signal allowing the decoder 7 to decrypt the code recorded in the drive 5 during the first transmission. If any violation is detected when analyzing a code feature, or when analyzing the efficiency of the cells of accumulator 5, or analyzing the correspondence of a series of pulses in the first and second transmissions, or if the received address code does not match the expected (specified) programmable address block, or if the asynchronous operation is detected distributors permission to decrypt is not according to VITS.

Claims (1)

Invention Formula A device for receiving commands of remote control and remote signaling by aut. St. No. 674077, characterized in that, in order to simplify the device, an address sensor is inserted on the keys, the first inputs of which are connected to the address outputs of the distributor, the second inputs of the keys are the master inputs of the device, the outputs of the keys are connected to the second inputs of the element OR.