SU744700A1 - Device for remote indication with frequency division of signals - Google Patents

Description

The invention relates to automation and remote control and can be used for remote monitoring of states of dispersed objects. A telemetric device is known. With frequency division of channels, containing amplitude sensors of measured parameters, frequency multipliers, separation filters, actuators, and an additional frequency channel with adjustable elements l. The closest in technical essence to the present invention is devices with frequency-division signals, containing at controlled points a generator, an encoder, filters, a transmitter connected via a communication line to a receiving point containing a receiver connected through filters to the decoder, whose outputs are connected to inputs of actuators connected to indicators 2J. A disadvantage of the known devices is the large required frequency band occupied by the system, with a large number of control objects connected to it. The purpose of the invention is to increase the information content of the device by reducing the frequency band occupied by the device. The purpose of the device for TV signaling with frequency division of signals, containing on each of the monitored points an encoder, the first and second generators, a group of generators and a transmitter connected via a communication line to a receiving point consisting of the first group of filters whose outputs are connected to the corresponding the first inputs of the decoder, the second group of filters and the executive unit, entered & n at each of the controlled switchboard points, differentiation unit, pulse shaper and inverter, the first inputs to The switch and the inputs of the differential (}) transfer module connected to the signal inputs of the device; the output of the differential block is connected to the input of the pulse former, the outputs of which are connected to,. ..-....- --3 ---- ------ 7447b by the corresponding second inputs of the switch, the output of which is connected to the input. the encoder, the first output of the encoder is connected via an inverter to the input of the first generator and directly to the input (the second generator, the second outputs of the encoder are connected to the inputs of the respective generators, the outputs of the tori generator are connected to the corresponding inputs of the transmitter, at the receiving point - differentiation unit, kpkmn,. г- f I group of keys and inverter, filter outputs; „A ditch of the second group of connectors is connected to the corresponding inputs of the differential unit and the first inputs of the corresponding keys of the group of keys, output The differentiation unit is connected to the second input of the decoder, the first input of the first key and the second inputs of the group, the keys of the keys, the output of the decoder is connected to the first input of the second key, the output of the filter is connected through the second inputs of the corresponding first and the second keys, the outputs of the keys are connected to the corresponding inputs, 25 dami of the execution unit ,,. The drawing shows a block diagram. -3, „The device contains a group of controlled items 1 connected through pine, .. - 30 2 connections to the receiving office clause 3. ... „. Each of the two control points 1. . - .. contains a switch 4, a block 5 to the differential,, tt-tsirovaniye shaper b pulses,; encoder 7 generators 8 and 9, a group of generators 1O, transmitter 11 and inverter 12, V - - l Through its signal inputs, 13 is connected with controlled objects. . , Signal inputs 13 are connected to per - - - J,. F 40. The outputs of the switch 4 and the differentiation unit 5, the output of which are connected to the formagator 6. The outputs of the pulse shaper 6 are connected to the second control inputs of the switch 4, the output. A-t of which is connected to the input of the encoder 7., "Лл ,, ,,, The first outputs 14 of the encoder 7 are connected to the inputs of the corresponding generators,. , a group of generators 10, the second output 15. is connected to the generator's input 9 and through the inverter 12 to the input of the generator 8. Bú. . - l of the generators 8-1O moves through the receiver, -., J о 11 are connected to the communication line 2. --- ,, rf, ite5;, - “, .-. -: The unit 3 contains the decoder 16, the block 17 is differentiated, the impeller block, 18. the inverter 19. the key group ao, the keys 21 22, the filter 23, the first filter group 24 and the second rpyit filter 25. -,. „,. (:) - 4 filter hoses 23-2g3 gudlucny | gi to „„ „„ 2 "Connections, outputs 25 connectors are connected to differentiation block 17 and keys 20 to inputs 26 of executive unit 18. Differential output 17 is connected to control inputs /% ol about "the city of the decoder 16 and ktochi 20 and 21. Output T" l. Filters 24 are connected to a decoded switch, 16, which is connected via 22 to input 27 of block 18. The output, via filter 23, is connected to the control switch fj - y of the input of key 22 and through inverter 19 and ";% 1 to input 28 of the unit 18. For each of the controlled points J, the generators included in its composition, when applying to their control signals, form a sinusoidal signal, with ' f, the sequence number of this controlled item. Generators 10k are built at frequencies I,, where tt-by, the generator number of the 1O generator as controlled by item 1, and the set of v / t frequencies are the same for all controls, is nn “I.” 9 is tuned to the frequency Go, the same for all monitored points 1 j, ,, on r, Filters 25 of receiving point 3, „f, are rented to frequencies IM. The number of these,. „,„ „, Filters in the composition of the receiving point 3 l" l / hm "n" t determines the maximum possible number of controlled points 1, which can simultaneously be connected to the line 2 - - communication. . „,, г Filters 24 are tuned to frequencies I-, The number of these filters in the composition of the pr“ F emny item 3 is equal to the number of generators / - “i d y. Filter 23 is set to frequency.,. Consider the operation of the device when, fj - provided that the signals from the controlled, “about objects through the inputs of the 13 controlled,“ g. Points 1 to the device do not arrive. switch 4, block differential differential, driver 6 pulses and: 2, 1, ° encoder 7. At the output of the inverter 12 there is an enable signal. The generators 9 and 1O are inhibited,:, according to the state, the generator 8 performs J. the generation of the sinusoidal signal J. transmitter 11 enters link 2. CRC “sinusoids are received in 2 connections” Signals from generators 8 of all connected to it connectors), Mixture of points 1, Mixture of EMC, sigkapov enter the input of receiving point 3 and further to the inputs of filters 23-25. When this occurs, signals appear at the outputs of all the filters 25 and there are no signals at the outputs of the filters 24 and 23. The signals from the outputs of the filters 25 are fed to the inputs of the keys 20 and the differentiation unit 17. The latter generates a signal at its output only at the moments of disappearance of signals at its inputs, and, therefore, in the presence of signals at the outputs of all filters 25, there is no signal at the output of differentiation unit 17. For this reason, there are no signals at the output of the decoder 16 and the keys 20-22 are in the locked state, with the result that no signals are received in the execution unit 18. When any of the monitored objects changes, the corresponding input 13 to the corresponding controlled puists 1 receives a signal in the form of a voltage drop, which is fed to the corresponding input of the switch 4, and also causes the appearance of pulses at the output of differentiation unit 5, which the input of the pulse former 6 pulses, the consecutive appearance at its outputs of single pulses arriving at the corresponding control inputs of the switch 4 starts. As a result, the switch 4 is is consistent alternate connection of the signal inputs to the input 13 of the encoder 7, the outputs of which the signals are generated only when connected thereto signal input 13 of the ringing signal from the monitoring of the object being. In this case, in the first codes 14 of the encoder 7, a combination of signals is generated, forming a parallel code, which displays the number of the signal input 13, through which a signal about a change in the state of the monitored object is received, and at the second output 15 a control signal. As a result, the generator 8 is braked, the generator 9 is energized, and a part of the generators 10 is also excited in accordance with the combination of signals formed at the outputs 14 of facegr 7. Sinusoidal signals generated by 9 and 1O generators and having frequencies fo and. pass through the transmitter 11 to the pin 2 of the communication and then to the inputs of the filters 23-25 of the receiving point 3. At the same time, firstly, the signal at the output of the filter 25 tuned to the frequency f, corresponding to p744700 which follows the controlled point, disappears input 13. Secondly, ST1GN8P occurs at the output of filter 23 tuned to frequency 4o Thirdly, signals appear at the outputs of filters 24 tuned to frequencies corresponding to the excited oscillator 10 of controlled point 1 that received the signal, i.e. . At the outputs of the filters 24, the same combination of signals occurs as at the outputs 14 of the encoder 7 of this controlled point 1. Due to the disappearance of the signal from the signals at the input of the differentiation unit 17, a signal of a limited duration is generated at the output of this unit. the inputs of the keys 20, and secondly, the control VZHD of the decoder 16 and, thirdly, the control input of the key 21. As a result, the keys 2O are unlocked and a combination of signals from the outputs of the filter 25, describing the instantaneous state of the monitored items 1, and the absence of the signal at the output of one of the filters 25 is perceived by this block as an identifier of the fact that the receiving point 3 receives information from the corresponding controlled item 1. At the same time, the output identifying the number of the signal input 13 and, Consequently, the number of the object under control, from which the signal of measuring its condition was received. The signal from the output of the decoder 16; through the key 22, which is opened by the signal from the output of the filter 23, is fed to the input 27 of the unit 18. The key 21 remains in the locked state, since the output of the inverter 19 receives the inhibit signal. Thus, in block 18, information is entered on the number of the controlled item 1, the received signal from the monitored object, and the number of its signal input 13, through which this signal was received, after which this block 18 displays the information received by it. the pulse generated by the pulse shaping pulse 6 and ensuring the connection of the signal path 13, according to which the signal from the controlled object is received, is restored through the switch op 4 to the encoder 7, a similar state of the generators 8-10, therefore, source signals on filter outputs 23–25. In this case, the output signal is not generated by the differentiation block 17 and no information is received in block 1. When the initial state of the monitored object is restored, a signal that corrupts input 13 and has a form opposite to the signal generated when the initial state changes an object that does not generate a signal at the output of block 4 of differentiation and, therefore, transfer 1 of any information to receiving point 3.x. - ..,., -. In the case of simultaneous measurement of the state of several controlled objects connected to one controlled point 1 (which is more likely than the simultaneous change of the state of several controlled objects connected to different controlled points 1), the information is transmitted to the system in a similar way. In this case, the first information on the change of the CONDITIONS of the monitored object, under the PDP) of the control to the signal input 13 with a lower own number, will be transmitted. If the state of several controlled objects connected to different monitored items 1 is changed with a small ruling, is transmitted in a reliable form to the executive unit 18, if this difference exceeds the duration of the pulse generated by the differentiation unit 17, which can be made very small - on the order of units of microseconds D. In addition, the indicated restriction on the difference in the time of changing the controlled objects refers to the worst case when all the objects that change their state at the same time are connected to the same signal line 13 different controlled points 1, and the duration of the pulses formed by the former The pulses of these points almost perfectly match. If any of the monitored points 1 is rejected from line 2, the corresponding frequency itt disappears from the frequencies coming from line 2 link 6 and the corresponding frequency itt disappears, which, as before, leads to the formation of a signal at the output of differentiation unit 17 . However, in view of the absence of signaling at the output of the filter 23, the key 22 remains locked, and the key 21 is unlocked, the signal from the output of which is fed to the input 28 of the execution unit 18, by marking the corresponding indication in it. Thus, the proposed ycTpolt system allows using sufficiently broadband communication lines for transmitting signals from a large number of objects. The invention The device for remote signaling with frequency division of signals, containing on each of the monitored items an encoder, first and second generators, a group of generators and a transmitter connected via a communication line to a receiving point consisting of the first group of filters whose outputs are connected to the corresponding first inputs of the decoder, the second group of filters and an additional block, which is different in that, in order to increase the information capacity of the device, it is entered into each of the controlled points switch, differentiation unit, pulse shaper and inverter, first inputs, switch and differentiation unit inputs are connected to the signal inputs of the device, the output of the differentiation unit is connected to the input of a & l pulses, the outputs of which are connected to the corresponding second inputs of the switch, the output of which is connected to the input encoder, the first output of the encoder is connected through izhertor with the input of the first generator and directly to the input. the second generator, the second outputs of the encoder are connected to the inputs of the respective generators, the outputs of the generators are connected to the corresponding inputs of the transmitter, at the receiving point - the differentiation unit, keys, key group and inverter, the filter outputs of the second filter group are connected to the corresponding inputs of the differentiation unit in the first inputs of the corresponding keys group of keys, the output of the differentiation unit is connected to the second input of the decoder, the first input of the first key and the second inputs of the key group, you the course of the decoder is connected to the first input of the second key, the filter input is connected via an inverter and directly to the second inputs of the first and second keys, respectively, the outputs of the keys connected to

9744700

the corresponding inputs of the fuse box. Sources of information, Energie, 1973. with. 259. FIG. 12-15

taken into account during the examination 5. (prototype).

QO09

i. Author svipetepstvo USSR №148447, cl. A 08 C 13/02, 28.02.61. 2. Tutevich V.N. Telemechanika. M.,

Claims (2)

Claim 15 Device for remote signaling with cha. frequency separation of signals, which contains the encoder, first and second generators, a group of generators and a transmitter connected via a communication line to a receiving station consisting of the first group of filters, the outputs of which are connected to the corresponding first inputs of the decoder, the second group of filters and 25 additional unit, which is related to the fact that, in order to increase the information content of the device, a switch, a differentiation unit, and a shaper are introduced at each of the controlled points the bus and the inverter, the first inputs, the switch and the inputs of the differentiation unit are connected to the signal inputs of the device, the output of the differentiation unit is connected to the input of the pulse generator, the outputs of which are connected to the corresponding second inputs of the switch, the output of which is connected to the input of the encoder, the first output of the encoder is connected through an inverter with the input of the first 40 generator and directly with the input. of the second generator, the second outputs of the encoder are connected to the inputs of the corresponding generators, the outputs of the generators are connected to the corresponding inputs of the sensor, at the receiving point there is a differentiation unit, keys, a key group and an inverter, the filter outputs of the second filter group are connected to the corresponding inputs of the differentiation unit and the first 50 inputs corresponding keys of the key group, the output of the differentiation unit is connected to the second input of the decoder, the first input of the first key and the second Inputs of the keys of the key group, you the encoder de55 is connected to the first input of the second key, the filter output is connected through the inverter and directly to the second inputs of the first and second keys, respectively, the outputs of the keys are connected to 9 744 700 10 corresponding inputs исполн. USSR copyright certificate of the bloc. No. 148447, class C 08 C 13/02, 28.02.61. 2. Tutevich VN Telemechanics. M.,