SU877598A1

SU877598A1 - Device for remote measuring data compression

Info

Publication number: SU877598A1
Application number: SU802889905A
Authority: SU
Inventors: Юрий Владимирович Соболев; Петр Федорович Поляков; Владимир Георгиевич Иванов
Original assignee: Харьковский Институт Инженеров Железнодорожного Транспорта Им.С.М.Кирова
Priority date: 1980-02-27
Filing date: 1980-02-27
Publication date: 1981-10-30

Description

(54) УСТРОЙСТВО ДЛЯ СЖАТИЯ ДАННЫХ ТЕЛЕИЗМЕРЕНИЙ(54) DEVICE FOR COMPRESSION OF DATA OF TELEVISIES

1 one

Изобретение относ тс к телеизмерени м и может быть использовано дл обработки телеметрических сообщений.The invention relates to telemetry and can be used for processing telemetry messages.

Известны устройства дл сжати данных с адаптацией по числу обобщенных координат, содержащие запоминающий блок, формирователь значащих координат , формирователь показател расхождени , решающее устройство,селектор существенных координат,формирователь адресной части сообщени и сумматор 1 . Devices for compressing data with adaptation by the number of generalized coordinates are known, comprising a storage unit, a shaper of meaningful coordinates, a shaper of a discrepancy indicator, a resolver, a selector of essential coordinates, a shaper of the address part of the message, and an adder 1.

Недостатком известных устройств вл етс невысокий коэффициент сжати данных за счет выбора посто нны;;: по длительности интервалов аппроксйма- ции. A disadvantage of the known devices is the low data compression ratio due to the choice of a constant ;;:: for the duration of the approximation intervals.

Наиболее близким по технической сущности к предлагаемому вл етс устройство, содержащее анализатор, вход которого соединен со входом устройства, а выходы подключены ко входам соответствующих ключей и первым входам соответствующих дискриминаторов , вторые и третьи входы которых соединены с соответствующими выходами генератора пилообразных напр жений, тактовый вход которого объединен с тактовым входом анализатора и подключен к синхронизирующемуThe closest in technical essence to the present invention is a device comprising an analyzer, the input of which is connected to the input of the device, and the outputs are connected to the inputs of the corresponding keys and the first inputs of the corresponding discriminators, the second and third inputs of which are connected to the corresponding outputs of the sawtooth generator, clock input which is combined with the clock input of the analyzer and connected to the synchronizing

входу устройства, выходы дискриминаторов через дифференцирующие элементы соединены с единичными входами триг геров , входы которых подключены к управл ющим входам соответствующих ключей, выходы которых соединены со входами кодирующего блока и формировател ми модул числа, входы которых подключены ко входам сумматора, through the differentiating elements, the inputs of the discriminator outputs are connected to single inputs of triggers whose inputs are connected to the control inputs of the corresponding keys, the outputs of which are connected to the inputs of the coding block and the number formers of the module, whose inputs are connected to the inputs of the adder,

1Q выход которого соединен с первым входом блока сравнени , второй вход которого подключен к задающему входу устройства, -выход блока сравнени соединен с единичным входом триггера, The 1Q output of which is connected to the first input of the comparison unit, the second input of which is connected to the master input of the device; the output of the comparison unit is connected to the single trigger input,

15 выход которого подключен ко входу дифференцирующего элемента, выход которого соединен с нулевыми входами триггеров и управл ющим входом кодирующего блока, нулевой вход триггера подключен к синхронизирующему входу 15 the output of which is connected to the input of the differentiating element, the output of which is connected to the zero inputs of the trigger and the control input of the coding block, the zero input of the trigger is connected to the clock input

20 устройства Г211 .20 G211 device.

Однако это устройство осуществл ет адаптацию только по числу коэффици25 ентов ортогонального разложени (Уолша, Хаара) и не позвол ет адаптироватьс по интервалу аппроксимации , что снижает коэффициент сжати данных, подлежащих передаче или об30 работке. . ,,However, this device adapts only according to the number of coefficients of orthogonal decomposition (Walsh, Haar) and does not allow to adapt to the approximation interval, which reduces the compression ratio of the data to be transmitted or processed. . ,,

Цель изобретени - повьошение информативности устройства за счет увеличени коэффициента сжати с использованием принципа двухпараметрической адаптации.The purpose of the invention is to improve the information content of the device by increasing the compression ratio using the principle of two-parameter adaptation.

Поставленна цель достигаетс тем, что в устройство дл сжати дан ,ных телеизмерений, содержащее анализтор функций Хаара, выходы которого соединены с информационными входами соответствующих ключей первой группы и первыми входами соответствующих дискриминаторов, вторые и третьи входы которых соответственно объединенн и соединены с соответствующими выходами генератора пилообразных напр жений , выходы дискриминаторов через соответствующие первые дифференцирующие элементы соединены с единичными входами соответствующих первых триггеров, выходы которых соединены с управл кн1 ими входами соответствующих ключей первой группы, выходы ключей первой группы соединены со входами соответствующих формирователей модул числа, выходы которых подключены ко входам сумматора,выход которого соединен с первым .входом блока сравнени , второй вход которог подключен к первому входу устройства выход блока сравнени соединен с единичным входом второго триггера, выхо которого через второй дифференцирующий элемент соединен с нулевыми входами первых триггеров и кодирующи блок, введены блок пам ти, блок управлени , управл емые чейки пам ти, ключи второй группы,преобразователь, блок делени и блок ансшиза, включающий ключи, чейки пам ти, дискриминаторы , группу элементов И, элемент И, триггеры, дифференцирующие элементы, элемент ИЛИ, счетчик, инверторы и генератор пилообразного напр жени , выходы ключей блрка анализа соединены с первыми входами соответствующих чеек пам ти, блока анализа, выходы которых соединены с первыми входами соответствующих дискриминаторов блока анализа,вторые входы которых соединены с выходом генератора пилообразного напр жени , выходы дискриминаторов соединены с первыми входами группы элементов И, вторые входы которых объединены и соединены с выходом инверто , ра, выходы элементов И соединены с соответствующими единичными входами триггеров., выходы которых соединены со входами группы инверторов и входами дифференцирующих элементов, вы .ходы которых соединены со входами элемента ИЛИ, выход которого соеди;нен с первым входом счетчика,выходы счетчика через последовательно сое:диненные элемент И и инвертор соеди нены со вторыми входами гр1уппы эле .ментов И, выходы ключей первой груп1пы соединены с первыми входами соответствующих управл емых чеек пам ти и первыми входами ключей второй группы , управл ющие входы которых соединены , с выходом второго дифференцирующего элемента и с вторыми входами всех управл емых чеек пам ти, выходы ключей второй группы соединены ср входами преобразовател , выход которого соединен с первым входом блока делени , выход которого соединен с первыми входами ключей блока анализа, первый выход блока управлени соединен со вторым входом блока делени , второй выход блока управлени подключен ко входу генератора пилообразного напр жени ,и нулевому входу второго триггера, третий выход блока управлени соединен со входом генератора пилообразного напр жени блока анализа, четвертые выходы блока управлени соединены с соответствующими вторыми входами ключей блока анализа и с третьими входами соответствующих управл емых чеек пам ти, п тый выход блока уп.равлени соединен с управл ющим входом блока пам ти, информационный вход которого подключен ко второму входу устройства, шестой выход бло-f ка управлени соединён с четвертыми входами соответствующих управл емых чеек пам ти, с нулевыми входами блока делени и преобразовател и вторыми входами чеек пам ти,, нулевыми входами триггеров и вторым входом счетчика блока анализа, седьмой выход блока управлени подключен к первому входу кодирующего блока, входы блока управлени соединены с соответствующими выходами группы инверторов блока анализа, и п тыми входами соответствующих управл емых чеек пам ти, выходы которых подключены к соответствующим входам кодирующего блока, выход„которого соединен с выходом устройства.The goal is achieved by the fact that the device for compressing data, telemetry, contains an analyzer of Haar functions, the outputs of which are connected to the information inputs of the corresponding keys of the first group and the first inputs of the corresponding discriminators, the second and third inputs of which are respectively connected and connected to the corresponding outputs of the sawtooth generator voltage, the outputs of the discriminators through the corresponding first differentiating elements are connected to the single inputs of the corresponding first riggers whose outputs are connected to the control kn1 by the inputs of the corresponding keys of the first group, the outputs of the keys of the first group are connected to the inputs of the corresponding number formers, the outputs of which are connected to the inputs of the adder, the output of which is connected to the first input of the comparison unit, the second input which is connected to the first to the input of the device, the output of the comparison unit is connected to the single input of the second trigger, the output of which through the second differentiating element is connected to the zero inputs of the first triggers and encodes the block , a memory block, a control block, controllable memory cells, keys of the second group, a converter, a division block, and an unshis unit, including keys, memory cells, discriminators, group of elements AND, element AND, triggers, differentiating elements, element OR, are entered , counter, inverters and sawtooth generator, the outputs of the keys of the analysis block are connected to the first inputs of the corresponding memory cells, the analysis unit, the outputs of which are connected to the first inputs of the corresponding discriminators of the analysis unit, the second inputs of which are connected The outputs of the sawtooth voltage generator, the discriminator outputs are connected to the first inputs of a group of elements I, the second inputs of which are combined and connected to the output of the inverter, the outputs of the elements And are connected to the corresponding single trigger inputs. The outputs of which are connected to the inputs of a group of inverters and inputs of differentiating elements, the inputs of which are connected to the inputs of the OR element, the output of which is connected, is not connected to the first input of the counter, the outputs of the counter through successively soy: the input element AND and the inverter soy They are connected to the first inputs of the corresponding controlled memory cells and the first inputs of the keys of the second group, the control inputs of which are connected, to the output of the second differentiating element and the second inputs of all controlled the memory cells, the outputs of the keys of the second group are connected by the cp inputs of the converter, the output of which is connected to the first input of the division unit, the output of which is connected to the first inputs of the keys of the analysis unit, the first output of the control unit with the second output of the control unit is connected to the input of the sawtooth generator, and the zero input of the second trigger, the third output of the control unit is connected to the input of the sawtooth voltage generator of the analysis unit, the fourth outputs of the control unit are connected to the corresponding second inputs of the keys of the control unit analysis and with the third inputs of the corresponding controlled memory cells, the fifth output of the control unit is connected to the control input of the memory unit, whose information input is connected to the second input of the device, the sixth output of the control unit is connected to the fourth inputs of the corresponding controlled memory cells, with zero inputs of the divider and converter and the second inputs of the memory cells, zero inputs of the trigger and the second input of the counter of the analysis unit, the seventh output the control unit is connected to the first input of the coding unit, the inputs of the control unit are connected to the corresponding outputs of the inverter unit of the analysis unit, and the fifth inputs of the corresponding controlled memory cells, the outputs of which are connected to the corresponding inputs of the coding block, the output of which is connected to the output of the device.

На фиг. 1 представлена блок-схема предлагаемого устройства; на фиг.2 графическое по снение его работы.FIG. 1 shows a block diagram of the proposed device; Fig.2 graphical explanation of his work.

. Устройство содержит анализатор 1 функций Хаара, дискриминаторы 2, ключи 3 первой группы, генератор 4 пилообразного напр жени , первые дифференцирующие элементы .5, первые триггеры б, кодирующий блок 7, формирователи 8 модул числа, сумматор 9, блок 10 сравнени , второй триггер. The device contains the analyzer 1 Haar functions, discriminators 2, keys 3 of the first group, generator 4 sawtooth voltage, the first differentiating elements .5, the first triggers b, the coding block 7, the shapers 8 number modules, the adder 9, block 10 comparison, the second trigger

11,второй дифференцирующий элемент11, the second differentiating element

Claims

12, controlled memory cells 13, keys 14 of the second group, converter 15 significant coordinates to voltage, dividing unit 16, analysis block 17 containing memory cells 18, discriminators 19, elements AND 20, triggers 21, differentiating elements 22, a group of inverters 23, a counter 24, an I.25 element, an inverter 26, a saw-tooth generator 27, an element. OR 28 and keys 29, And the device also contains a memory block 30 and a control block 31. The proposed device is as follows. Counts random process on. all interval .. the time of observation ns "5l. (Fig. 2) enter memory block 30. The operating cycles of the device are set by the control unit 31. The information on the information from block 30 is read into analyzer 1 according to the Haar functions. The control unit 31 sets the time base of the analyzer 1 corresponding to the approximation intervals t, ttj, --- t (Fig. 2). As soon as the approximation error on the i-OM interval reaches the allowable value, the first inputs of the controlled 1 memory cells 13 and the inputs of the keys 14 of the second group have significant coordinates of the orthogonal decomposition of the random process. Significant coordinates are recorded in the corresponding-controlled memory cells 13, since their third (control) inputs are supplied with an enable signal from control unit 31, corresponding to the i-th approximation interval. From the outputs of the keys 14 of the second group, significant coordinates are fed to the inputs of the converter 15 significant coordinates to voltage. The voltage from the output of the converter 15 is supplied to the first input of the division unit 16, to the second input, from which the voltage corresponding to the length of the i-th interval flows from the control unit 31. The division block 16 produces the division of the i-th in, terval approximation on the number of significant coordinates. From the output of dividing unit 16, the voltage corresponding to the result of dividing is applied to the first inputs of the keys 29 of block 17 to analyze and select the optimal representation interval. The second control inputs of the keys 29 from the control block 31 are supplied with permitting signals corresponding to the analysis of the random process pa 1,2, ..., the Ω interval. After the analysis of the i-th interval, the memory division cells 18 recorded if, corresponding to the E | efficiency of the orthogonal representation of the signal at 1,2, ..., th approximation sites. Dependence of the number of significant coordinates on the length of a non-linear interval of approximation Let, for example, t 10riC 8, t 15 and C 10, t 20 and C 15 We define the most effective interval of the orthogonal representation 4f F-I-i; if to 1.25, Kzf 1.5, K | f 1.33. From the analysis it is clear that the most: effective from the point of view of compression of information is the second interval of approximation. The voltage from the output of memory cells 18 is applied to the first inputs of the discriminators 19, the second inputs of which are supplied with a linearly varying voltage from the oscillator 27. The discriminators 19 work alternately, starting from that, the input of which is the lowest. The voltage from the output of the discriminators 19 goes to the first inputs of the corresponding elements AND 20, the second inputs of which are applied, allowing the potential from the output of the inverter 26. The elements and 20 trigger and set the triggers 21 to one state, the outputs of which through differentiating chains 22 and the element OR 28 is fed to the counting input of the counter 24. Counter 24 captures the number. incoming pulses and upon receipt of (i-1) pulses, element 2 is triggered and an inverted signal from the output of this element closes elements 20. The trigger 21, corresponding to the memory cell 18 with the highest kd state, is at zero. The inverted signal from the trigger output by inverters 23 arrives at the corresponding points of the inputs of the controlled memory cells 13. The information appears at the outputs of those memory cells 13 - to the fifth inputs of which the resolving unit potential is fed from the corresponding inverter 23 of the analysis block 17 and the selection of the optimal interval. The signals from the outputs of the inverters 23 are fed to the control unit 31, signaling a selected optimal interval. Information on the outputs of the controllable memory cells 13 corresponding to the significant decomposition coefficients and from the control unit 31 is supplied to the outputs of the coding unit 7 of the block 7. information corresponding to the optimal presentation interval. The signal control unit 31 from the fifth output initializes the controllable memory cells 13, the converter 15, the division unit 16 and, in the analysis unit 17, the memory cell 18, the triggers 21 and the counter 24. For reliable operation of the device, To the response time of the keys 14 of the second group was longer than the response time of the keys 3 of the first group. In the controlled memory cell 13, information is recorded in the presence of signals at the second and third control inputs. From the fifth output of the information control block 31, corresponding to the t mark of the optimum interval, is fed to the control input. Memory memory 30 b. Starting from the tr mark, the read information is fed to the input of the analyzer 1, and the operation cycle of the device starts over. Compared to the known, the proposed device allows to adapt both by the number of significant coordinates and by the approximation interval of A1C, which makes it possible to maximally reduce the amount of information transmitted — and significantly increase the efficiency of data processing in digital systems. measurement, which contains the analyzer of the Haar functions, the outputs of which are connected to the information inputs of the corresponding keys of the first group and the first inputs of the corresponding discriminator c, the second and third inputs of which are respectively combined and connected to the corresponding generator outputs of the saw-tooth voltage, discriminator outputs via the respective first differentiating elements connected to the single inputs of the corresponding first triggers, whose outputs are connected to the control inputs of the corresponding keys of the first group, outputs of the keys of the first the groups are connected to the inputs of the corresponding number formers of the module, the outputs of which are connected to the inputs of the adder, the output of which is connected n comparing the first input unit, second input of which is connected to a first input of ma. va, the output of the comparator unit is connected to a single input of the second flip-flop, the output of which is connected to the zero inputs of the first flip-flops and the coding block through the second differentiating element, in order to increase the information content of the device, in addition, a memory block, a control unit, controllable - memory cells, keys of the second group, converter, dividing unit and analysis unit, including memory clock keys, discriminators, AND group of elements, AND element, triggers, differentiating elements, OR element, counter, inverto The sawtooth generator and generator, the outputs of the keys of the analysis block are connected to the first inputs of the corresponding memory checks of the analysis block whose outputs are connected to the first inputs. the corresponding discriminators of the analysis unit, the second inputs of which are connected to the output of the saw-voltage generator, outputs; b; the sparking devices are connected to the nepBEiMH inputs of the group of elements And, the second inputs of which are combined and connected to the output of the inverter, the outputs of elements And are connected to the corresponding single trigger inputs, outputs of which are. connected to the inputs of a group of inverters and the inputs of differentiated elements whose outputs are connected to the inputs of the OR element, whose output is connected to the first input of the counter, the outputs of the counter through the series-connected elements And the inverter connected to the second inputs of the group with the first inputs of the respective controlled memory cells and the first inputs of the keys of the second group, the control inputs of which are connected to the output of the second differentiating element, and with the second moves of all controlled memory cells, the outputs of the keys of the second group are connected to the inputs of the converter, the output of which is connected to the first input of the dividing unit, the output of which is connected to the first inputs of the keys of the analysis unit, the first output of the control unit is connected to the second input of the dividing unit, the second turn of the unit control is connected to the input of the sawtooth generator and zero input of the second trigger, the third output of the control unit is connected to the input of the sawtooth voltage generator of the analysis unit, the fourth outputs of the block the control units are connected to the corresponding second inputs of the keys of the unit a, and to the third inputs of the corresponding controllable memory cells, the fifth output of the control unit is connected to the control input of the memory unit, whose information input is connected to. the second input of the device, the sixth output of the control unit is connected to the fourth inputs of the corresponding controlled memory cells, with zero inputs of the dividing unit and the converter and the second inputs of the memory cells, zero inputs of the triggers and the second input of the analysis unit counter, the seventh output of the control unit is connected to the first the input of the coding unit, the inputs of the control unit are connected to the corresponding outputs of the inverter group of the analysis unit and the fifth inputs of the corresponding controlled memory cells, the outputs of which are connected to to the corresponding inputs of the coding block, output, which is braked with the output of the device. sources of information taken into account in the examination 1. A. Mansvtsev A.P. Fundamentals of the theory of radio telemetry, M., Energie, 1973,. P. 450-457.

2. USSR author's certificate number 645163, cl. G 06 F 7/04, 1977 (prototype).