SU1247916A1 - Supervisory control and indication system - Google Patents

Abstract

The invention relates to the field of telemechanics and can be used to service dispersed objects. The purpose of the invention is to increase the information content. The pulse distributor forms temporary positions for transmitting the signals of the selection of controlled points (CP) and the sources of information on them, control commands and receiving information from the controlled points. At the first counter, a signal is generated corresponding to the number of polled information sources in the control unit. This code is compared with the code for the number of sources in a given CP stored in a memory block. If the codes are equal, the second counter receives a signal that sets the first counter to zero and the second to the next state. Control commands and address signals with the help of the driver in the serial code go to the communication line. Reception of information from controlled points is performed at the corresponding time positions in the decryption unit. 4 il. (Ljo nu (x

Description

The invention relates to telemechanics and can be used to service dispersed objects.

The purpose of the invention is to increase the information content.

Figure 1 shows the functional diagram of the device; figure 2 is a functional diagram of the driver signals the choice of controlled items; FIG. 3 is a functional block diagram of the formation of an address; Fig. 4 is a functional block diagram of the decryption and reproduction unit.

The device comprises a pulse generator 1, a pulse distributor 2, a driver of 3 signals for selection of monitored items, a block 4 for decrypting and reproducing information, a driver 5 for 15 pulses, a transmitter 6 and a receiver 7 connected to line 8 of communication, the first and second counters 9 and 10, memory block II and comparison block 12.

The shaper 3 of the selected point selection and control commands contains an address generation block 13, controls us, whose inputs 14 enter the first inputs of the driver 3, information inputs 15 are the third inputs of the generator 3, is not connected to the input 16 the output of the decoder 17, the inputs of which are the second inputs of the imaging unit 3, the interrogation signal generating unit 18 and the OR element 19. The block 13 contains the multiplexer 20, the AND 21 element and the OR 22 element.

The decryption unit contains an information message converter 23, the information input of which is the second input of the block 4, the recording unit 24 and the decoder 25 whose inputs are

The total time of one clock cycle for outputting information from memory block 11 is determined by the duration of the signal produced by shaper 5 and the total response time of counter 10, information output from block 11 memory cell and comparison of signals (codes) by block 12 is significantly but less the period of the pulse at the output of the generator 1. Therefore, when stored in all the memory cells of the block 12, 10 except for one, zeroes (only one controlled point is polled) in the pause between the pulses at the output of the generator 1, the content in sech memory cells of block 11.

The device works as follows.

The signals from the output of the pulse generator 1 are fed to the input of the distributor 2 pulses, which distributes them in time, forming time positions for transmitting signals for selecting controlled points and sources of information on them, control commands and for receiving information from controlled points. The signals from the third output of the distributor 2 are fed to the first input of the counter 9, at the outputs of which signals are generated in a binary code corresponding to the number of polled information sources at the controlled point. This code is compared with the code generated by the signals at the output of memory block 11, by comparison block 12. In case of equality (full identity) of the codes on the first and second inputs of the comparison unit 12, a comparison signal is generated at its output, when it appears, the shaper 5 generates a signal that sets the counter 9 to the initial (zero) state, and the counter 10 to the next

20

thirty

third entrances. The output of the decoder 25 35 is a state that can be connected to the enable input of the registration unit 24. The control inputs of the registration unit 24 are the first inputs of block 4, the first of which is combined with the control input of the converter 23. The outputs of the converter 23 are connected to the first a group of information inputs of a registration unit 24, the second group of information inputs of which 26 are the fourth inputs of a block 4.

40

if it was in a state of maximum before that. The signals from the output of the counter 10, corresponding to the number of the item being monitored, are fed to the inputs of the memory block 11, and information is output from the corresponding memory cell (in binary code), which determines the number of information sources on this monitored item. The signals from the outputs of the distributor 2 pulses and counters 9 and 10

In each memory cell of the unit 1, a number 45 is received at the inputs of the imaging unit 3 signatures corresponding to the number of information sources at the monitored point (recording inputs of the memory unit 11 in the drawing are not shown), the address (number) of which corresponds to the address of this memory unit cell 11. Record and storage in the memory cell corresponds to the absence of a controlled item. The address (number) of the monitored item being monitored and the corresponding cell address of the block 11 are specified by the state of the second counter 10, and

Selection of controlled items. Since each cycle of operation of the distributor of 2 pulses corresponds to one specific position of the counter 9, then in one cycle of operation distribute. 2 pulses 50 selection of one information source (control object) is possible at the selected control point. If counter 9 is in the initial (zero m) state, then a control point selection signal is additionally generated in accordance with the address (number) of the information source at 55, then counter 10. Select signals of the monitored control point and information of the state of the counter 9. Maximums (control objects) they are received

the total time of one clock cycle for outputting information from memory block 11, determined by the duration of the signal produced by shaper 5, and the total response time of counter 10, the output of information from the memory cell of block 11 and comparison of signals (codes) by block 12 is significantly less pulses at the output of generator 1. Therefore, when stored in all the memory cells of block 12, except for one, zeros (only one controlled point is polled), in the pause between the pulses at the output of generator 1, the content is timed out memory cell block 11.

The device works as follows.

The signals from the output of the pulse generator 1 are fed to the input of the distributor 2 pulses, which distributes them in time, forming time positions for transmitting signals for selecting controlled points and sources of information on them, control commands and for receiving information from controlled points. The signals from the third output of the distributor 2 are fed to the first input of the counter 9, at the outputs of which signals are generated in a binary code corresponding to the number of polled information sources at the controlled point. This code is compared with the code generated by the signals at the output of memory block 11, by comparison block 12. In case of equality (full identity) of the codes on the first and second inputs of the comparison unit 12, a comparison signal is generated at its output, when it appears, the shaper 5 generates a signal that sets the counter 9 to the initial (zero) state and the counter 10 to

a condition that may be the beginning

if it was in a state of maximum before that. The signals from the output of the counter 10, corresponding to the number of the item being monitored, are fed to the inputs of the memory block 11, and information is output from the corresponding memory cell (in binary code), which determines the number of information sources on this monitored item. The signals from the outputs of the distributor 2 pulses and counters 9 and 10

Selection of controlled items. Since each cycle of operation of the distributor of 2 pulses corresponds to one specific position of counter 9, then in one cycle of operation distribute. 2 pulses it is possible to select one source of information (control object) at the selected control point. If counter 9 is in the initial (zero m) state, then a control point selection signal is additionally generated in accordance with the state of counter 10. The selection signals of the control points and sources of the output information of the transmitter 3 to the input of the transmitter 6. The transmitter 6 transmits these signals to communication channel 8. Information from monitored points is received by receiver 7, from the output of which information signals are sent to information input of decoding unit 4 and information reproduction. Reception of information from controlled points and its registration is carried out at the corresponding time positions of the distributor 2 pulses. The signals at its outputs, connected to the control inputs of block 4, give permission to receive information and register it. The signals from the outputs of counters 9 and 10 are used in block 4 to distribute the received information among the output elements of the respective controlled items and to identify it during registration.

The shaper 3 signals selection of the controlled point and control commands works as follows.

If there are code signals at the inputs of the decoder 17 that correspond to the initial (zero) state of counter 9, a signal is generated at its output, which is fed to the enable input 16 of block 13 and allows the alternate transmission of control point selection signals generated in accordance with the code signals the inputs 15 of the block 13 with the appearance of the corresponding control signals at the inputs 14. The signals of the choice of the controlled point from the output of the block 13 through the element OR 19 are fed to the input of the transmitter 6.

Selection signals of a controlled point are formed in the address generation unit 13 as follows.

At a certain operation cycle of the distributor 2 pulses, the first of the control inputs 14 of the block 13 receives a pulse signal that passes through the AND 21 element and the OR 22 element to the output of the block 13 and is a synchronizing signal in the address word transmitted sequentially through the link 8 on all controlled items (not shown). On subsequent cycles of operation of the distributor 2, signals are alternately sent to the control inputs of the multiplexer 20, which performs the corresponding alternate connection of information inputs 15 to the input of the OR element 22 and transmitting signals from them, i.e., converting the parallel binary code corresponding to the number of the controlled item, into the sequential, constituting, together with the synchronization signal, the address word. If there is no code at the inputs of the decoder 17 corresponding to the initial (zero) state of counter 9, the output of the decoder 17 produces a zero signal, which is fed to the input 16 of block 13 and

0

prohibits the formation of signals for selecting a controlled point in block 13 and transmitting them to the input of the OR 19 element. This prevents the clock pulse from passing through the AND 21 element to the 5th second input of the OR 22 element and signals from the informational inputs 15 through the multiplexer 20 to the first input of the OR 22 element when control signals appear at the inputs 14 of the address generation unit 13.

Q At the next cycles of operation of the distributor 2, the block 18 generates a signal for polling the information sensor, which is a pulse signal of a certain duration. When a signal appears at the first control input at the output of block 18

5, a single signal is generated, which ends when a signal appears at the second control input of unit 18. The interrogation signal from the output of unit 18 is fed through the OR element 19 to the input of transmitter 6. The unit 4 for decoding and outputting information 4 operates as follows. During the operation of the distributor 2, during which the polling signal starts to form at the output of the imaging unit 3 or at the preceding one, to the control

5, the input of the information message converter 23 and the first control input of the registration unit 24 is supplied with a pulse signal, by which the converter 23 is prepared to receive information from the output of the receiver 7 to the second

0 input of block 4, and block 24 of registration, if there is a permission signal at the entry of permission, enters and registers information arriving at the second group of information inputs 26 and corresponding to the number of the controlled item. Signal

5 resolution is generated by the decoder 25 in the presence of signals at its inputs of a code corresponding to the initial (zero) state of counter 9. In the absence of a permission signal at the output of the decoder 25, input and registration of information received on the second group of information inputs 26 of block 24 through the fourth inputs of block 4 from counter 10, is not produced. When information is subsequently received at the information input of the converter 23 in a pulse-pulse (frequency-pulse or code-pulse) form, it is sequentially entered into the converter of information messages 23, which converts it into a standard digital form, stores and outputs to its findings as signals of a parallel binary or binary-decimal code until the next signal appears at its control input. At the last cycles of the work of the distributor 2, the information entering the block 24 through the first group of its information inputs is entered and the second and subsequent-1 control inputs of the registration block 24 are entered into

0

five

0

five

The corresponding signals are received through the first inputs of block 4 from the second outputs of distributor 2. Information can be recorded by a tape drive with a digital printing device or a perforator, which can be part of a registration unit 24 (not shown).

Claims (1)

Invention Formula A device for telecontrol and tele-alarm, containing a pulse generator, the output of which is connected to the input of the pulse distributor, the first outputs of which are connected to the first inputs of the selector signal of controlled points, the output of which through the transmitter is connected to the communication line, the second outputs of the pulse distributor are connected with the first inputs of the decryption and playback unit, to the second input of which the output of the receiver is connected. Fig. 1 with an input connected to a communication line, a pulse shaper, characterized in that, in order to increase the information content, the first and second counters, a memory unit and a comparison unit are inserted into it, the third output of the pulse distributor is connected to the first input of the first counter, and outputs which are connected to the second inputs of the generator of signals of the choice of controlled points, the third inputs of the block for decrypting and reproducing information and to the first inputs of the comparison unit, the output of which is connected to the second through the pulse shaper the input of the first counter and the input of the second counter, the outputs of which are connected to the third inputs of the generator of signals for the selection of monitored items, with the fourth inputs of the block for decrypting and reproducing information and with the inputs of the memory block whose outputs are connected to the second inputs of the comparison unit. FIG. 2 . J Editor N. Gorvat Order 4129/51 VNIIPI USSR State Committee for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab. 4/5 Branch PPP "Patent, Uzhgorod, st. Project, 4 FIG. Compiled by M. Artamonov Tehred I. VeresKorrektor L. Pilipenko Circulation 515 Subscription