SU1282185A1 - Adaptive transmitter of telemetric information - Google Patents

Abstract

The invention relates to the field of telemechanics and can be used in the equipment for the exchange of command signal information of automated control systems. The purpose of the invention is to increase the information content and speed of the device. The purpose of the invention is achieved by the fact that the device operating in two transmission modes introduces another mode of data transmission about objects depending on the number of changes within the group of objects. If there are few changes within the group, you transmit information about the group of objects): as the number of changes in the group and the addresses of changes in the group. If there are a lot of changes within the group, when rescanning, the contents of the group are transferred to the register. 2 Il. (L

Description

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The invention relates to telemechanics and can be used in the equipment for the exchange of command and signal information of automated control systems.

The purpose of the invention is to increase the information content and speed of the device.

FIG. 1 shows a functional diagram of the device; in fig. 2 - structure of the transmitted messages.

The device contains a distributor 1, switch 2, key 3, memory block 4, key 5, comparison block 6, key 7, counter 8, key 9, address register 10, key 11, trigger 12, adder 13, setpoint sensor 14, key 15, counter 16, output 17, register 1.8 of the service part of the code, adder 19, setpoint sensor 20, key 21, trigger 22, key 23, code word register 24, command driver 25, output 26.

The device works as follows.

Initial state: all registers 10, 18 and 24, counters 8 and 16, triggers 12 and 22 are in the state O. Signals from the first output of the distributor 1 control the operation of the switch, which connects successively all the groups data sources at its output. This data is sent to comparison unit 6 and compared to the contents of memory block 4 A non-comparison signal is fed to counter 8, from which output the number of changes in the group through key 11 is sent to the address register 10 and to the input of the adder 13. If the changes in the group a lot, then the transfer signal from the high bit of the adder 13 trigger 12 is set to state 1, so that the key 5 and the contents of the group (when re-polled) are opened from switch 2 through key 5 are sent to register 24 of the code word. If there are few changes, then at the first survey of the group in the register of 10 addresses the number of changes in the group is recorded, and at the second survey - the addresses of changes in the group that through key 9 fall into the register 24 code words.

After interviewing the first

the group of objects is polled second and so on. In the first cycle of the survey of all groups of block 6

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through key 15, bits are filled, each of which corresponds to a specific group number, register 18 of the service part of the code. The bit corresponding to the group having changes is set to state 1. Signals about groups that have changes are output from key 15 to counter 16. If there are many groups having changes, then at the end of the first poll cycle of all groups, trigger 22 is transmitted. from the high bit of the adder 19 is set to state 1 and opens the key 21, thereby the addresses of the groups having changes, in the positional code from register 18 fall into the register 24. In the second cycle of polling the groups, the groups that have the changes are polled, since contents of service register 18 second code part controls the operation of the switch.

If the groups that have few changes, then in the second cycle of polling the groups of their addresses from the distributor 1 through the key 23 get into the register 24 of the code word. The message structure for this case is shown in FIG. 2a and for the preceding one — in FIG. 26

After the second group polling cycle, everything is repeated anew, however, state O of counter 16 indicates that the communication channel is released from transmission by this device.

The contents of the register 24 of the code word goes to the driver, 25 commands and further to the communication channel. In the period of information transfer, the imaging unit 25 synchronizes the operation of the device.

The use of the proposed device at low intensities of changes in the state of the monitored objects allows to increase the information content of messages and the utilization rate of the communication channel in comparison with the known device.

Claims (1)

Invention Formula An adaptive telemetry information transmitter containing a distributor, the first output of which is connected to the first input of the first key and the control inputs of the memory unit and the switch, the output of which is connected to the first input of the second key5 whose output is connected to the first input of the code word register. the output of which is connected to the input of the command driver, the first output of which is connected to the second input of the second key, the first input of the distributor, the first input of the third key, the output of which is connected to the information input of the memory block, the output of which is connected to the first input of the comparison block The output of which is connected to the input of the first counter and to the first input of the fourth key, the output of which is connected to the register input of the service part of the code, the output of which is connected to the first input of the fifth key and to the second input of the distributor, The second output of which is connected to the second input of the fourth key, the first setpoint sensor, the output of which is connected to the first input of the first adder, the output of which is connected to the input of the first trigger, the first and second outputs of which are connected to the second inputs of the first and fifth keys respectively whose outputs are connected respectively to the second and third in the moves of the codeword register, the second output of the command generator is connected to the third inputs of the first and fifth keys, the second counter, the information inputs of the switch are input device, the third output of the instruction is a first output device and differing u and in that, for the purpose An increase and speed NIN informativnossi devices, the second setpoint sensor, the second adder, the second trigger, the address register, the sixth, seventh and eighth keys, the first output of the distributor are connected to the first input of the sixth key, whose output is connected to the first address register input, which connected to the first input of the seventh key, the output of which is connected to the first input of the code word register; the output of the first counter is connected to the first input of the second adder and to the first input of the eighth to whose output — the output is connected to the BToiJoMy input of the address register; the stroke of the second setpoint sensor is connected to the second input of the second adder, the output of which is connected to the input of the second trigger, the first and second outputs of which are connected respectively to the second input of the seventh key and to the third input of the second key, the first output of the command generator is connected to the third input of the seventh key, the second the distributor output is connected to the second input of the eighth key, the output of the comparison unit is connected to the second input of the sixth key, the output of the fourth key is connected to the input of the second counter, the output of which is connected Deutero th input of the first adder and into- | l is the second output of the device, the switch output is connected to a third switch orymi inputs and comparison unit I Neny. Phage .. Prism i transferLagger regkima Symptom at Adpse gr. H pofM Adpec g. Address “ll .1 i. iptfaaiAASpeett-lsp tin opM  twf "p" a.Mu ... r. "., ..... -. .r, .1. , c | .- II II I. f -, 11 I IIf ffpusftaff .2 Vaf, fe «J .. ./ "ШГвЛ / jf№i-, V g f: fff (fMa) JX. SM .f ffKfftlpo ff / ffOffaj. j  || | -GTG-Lt-P- | -G -, - gT1 | -: - G1g tgT1.1 | L1DG., - | .i..g. yjijij-i I 1 .., r. -Jlg --rr-r; 1-Sh-P rr.i rj D.tsShsh ... a | -mr ttL Fik-1 Editor N. Vobkova Compiled by M. Artamonov Tekhred L. Olejns Proofreader M. Samborska Order 7272/50 Circulation 542 VNIIPI USSR State Committee for inventions and discoveries 113035, Moscow, F - 35, Raushsk nab., 4/3 Podpgrsnoe