SU1005104A2

SU1005104A2 - Graphic data reading device

Info

Publication number: SU1005104A2
Application number: SU813347226A
Authority: SU
Inventors: Владимир Ильич Латышев; Владимир Федорович Тараев
Original assignee: Предприятие П/Я Г-4677
Priority date: 1981-10-19
Filing date: 1981-10-19
Publication date: 1983-03-15

Description

Изобретение относится к вычислительной технике, а точнее, к. кодированию графической информации, может использоваться в комплексах подготов- g ки управляющих программ исполнительных устройств, а также в системах обработки метереологической и другой графической информации.The invention relates to computing, and more specifically, to coding of graphic information, can be used in complexes for preparing control programs for executive devices, as well as in meteorological and other graphic information processing systems.

По основному авт.св. № 703845 из- . вестно устройство для считывания графической информации, содержащее планшет с системой взаимоортогональных шин, подключенных к соответствующим блокам коммутации, входы которых сое- ¹⁵динены с триггером и с генератором синусоидальных колебаний, подключенным 'к делителю частоты, вход которого подключен к генератору частоты, ~л а выход соединен с блоком управления, подключенным к входам триггера, и последовательно соединенные съемник координат, блок коммутации, другой вход которого подключен к триггеру, и блок преобразования фазы колебаний в код, 25 другой, вход которого подключен к генератору частоты £1].By main auto No. 703845 of-. is known an apparatus for reading graphic information, comprising a plate with a system bus A mutually connected to respective switching units whose inputs are soe- dineny ¹⁵ with the trigger and the generator sinusoidal oscillations connected 'to the divider the frequency, the input of which is connected to the frequency generator, and ~ l the output is connected to a control unit connected to the inputs of the trigger, and a coordinate puller, a switching unit, another input of which is connected to the trigger, and the phase conversion unit are oscillated in series minutes in code, 25 the other of which is connected to the generator input frequency £ 1].

• Недостаток этого устройства заключается в его невысокой точности при кодировании управляющих программ, ког да получение информации осуществляется в приращениях координат.• The disadvantage of this device is its low accuracy when coding control programs, when information is obtained in increments of coordinates.

Цель изобретения - повышение точности устройства при формировании приращений координат.The purpose of the invention is to improve the accuracy of the device during the formation of increments of coordinates.

Поставленная цель достигается тем, что в известное устройство введены первый элемент И,· вход которого соединен с одним выходом триггера, первый дешифратор, подключенный к выходам первого элемента Й и делителя частоты, первый формирователь сигналов приращений, соединенный с выходом первого дешифратора, первый селектор, входы которого подключены к первым формирователю сигналов приращений и дешифратору, а выход является выходом устройства, и последовательно соединенные формирователь опорных импульсов, вход которого подключен к съемнику координат, блок фазирования сигналов, другой вход которого подключен к генератору частоты, а выход подключен .другому входу первого элемента И, второй элемент И, другой вход которого подключен к выходу триггера, второй дешифратор, другой- вход которого подключен к делителю частоты, второй формирователь сигналов приращений и второй селектор сигналов, другой вход которого подключен к второму дешифратору, а выход является другим выходом устройства, при этом блок фазирования сигналов содержит третий элемент И, один вход которого является входом блока,'другой подключен к выходу второго триггера, а выход соединен с одним входом третьего триггера, другой вход которого подключен к выходу второго триггера, и четвертый элемент И, входы которого соединены с третьим Ю элементом И и с третьим триггером, а выход является выходом блока и под- ключей к одному входу второго триггера, другой вход которого является другим входом блока. 15This goal is achieved by the fact that the first element And is introduced into the known device, whose input is connected to one trigger output, the first decoder connected to the outputs of the first element Y and the frequency divider, the first increment signal generator connected to the output of the first decoder, the first selector, the inputs of which are connected to the first shaper of the increment signals and the decoder, and the output is the output of the device, and serially connected shaper of the reference pulses, the input of which is connected to the puller coordinates, a phasing block of signals, the other input of which is connected to the frequency generator, and the output is connected. to the other input of the first element And, the second element And, the other input of which is connected to the output of the trigger, the second decoder, the other is the input of which is connected to the frequency divider, the second driver increment signals and a second signal selector, the other input of which is connected to the second decoder, and the output is another output of the device, while the signal phasing unit contains a third AND element, one input of which is input unit block, 'the other is connected to the output of the second trigger, and the output is connected to one input of the third trigger, the other input of which is connected to the output of the second trigger, and the fourth element And, the inputs of which are connected to the third U element And and the third trigger, and the output is the output of the block and sub-keys to one input of the second trigger, the other input of which is the other input of the block. fifteen

На фиг.1 представлена блок-схема устройства; на фиг.2 - пример конкретного конструктивного выполнения блока фазирования сигналов; на фиг.З „ и 4 - конструктивное выполнение формирователя сигналов приращений и селектора сигналов соответственно.Figure 1 presents a block diagram of a device; figure 2 is an example of a specific structural embodiment of the phasing block of signals; in Fig.3Z and 4 - constructive implementation of the shaper signals of increments and signal selector, respectively.

Устройство включает генератор частоты 1, делитель частоты 2, генератор», синусоидальных колебаний '3, блоки ком-^-* мутации 4-7, блок управления 8, первый триггер 9, планшет 10 с горизонтальными 11 и вертикальными 12 координатными шинами, съемник координат 13, блок коммутации 14, блок 15 пре- 30 образования фазы колебаний в код, формирователь 16 опорных импульсов, блок 17 фазирования сигналов, первый 18 и второй 19 элементы И, первый 20 и второй 21 дешифраторы, первый 22 и 35» второй 23 формирователи сигналов приращений, первый 24 и второй 25 селекторы сигналов. При этом.блок 17 содержит второй триггер 26, третий триггер 27, третий 28 и четвертый 29 40 элементы И, формирователи 22 (23) содержат четвертый триггер 30 и пятый элемент 31 И, а селекторы 24 (25) содержат пятый триггер 32 и шестой 33 и седьмой 34 элементы И. 45The device includes a frequency generator 1, frequency divider 2, generator ", sinusoidal oscillations' 3, comm - ^ - * mutation blocks 4-7, control unit 8, first trigger 9, tablet 10 with horizontal 11 and vertical 12 coordinate buses, coordinate remover 13, switching unit 14, block 15 for converting the oscillation phase into a code, a reference pulse shaper 16, a signal phasing block 17, the first 18 and second 19 I elements, the first 20 and second 21 decoders, the first 22 and 35 ”second 23 shapers increment signals, first 24 and second 25 signal selectors. In this case, block 17 contains a second trigger 26, a third trigger 27, a third 28 and a fourth 29 40 I elements, formers 22 (23) contain a fourth trigger 30 and a fifth I element 31, and selectors 24 (25) contain a fifth trigger 32 and a sixth 33 and seventh 34 elements I. 45

Устройство работает следующим образом.The device operates as follows.

При установке триггера 9 в единичное состояние синусоидальные напряжения генератора 3 через блоки 4-7 поступают на вертикальные шины 12 планшета 10 и съемник координат 13 преобразует электрическое поле, образованное вертикальными шинами 12, в фазомодулированный сигнал, пропорциональный координате X, а при установ- ³³ке триггера 9 в нулевое состояние синусоидальные напряжения генератора через блоки 4-.7 поступают на горизонтальные шины 11 планшета 10 и съемник координат 13 преобразует электричес-· 60 кое поле, образованное горизонтальными шинами 11, в фазомодулированный сигнал, -пропорциональный координате У .When the trigger 9 is set to a single state, the sinusoidal voltages of the generator 3 are supplied through the blocks 4–7 to the vertical buses 12 of the tablet 10 and the coordinate pick-up 13 converts the electric field formed by the vertical buses 12 into a phase-modulated signal proportional to the X coordinate, and when set to ³³ ke trigger 9 to the zero state the sinusoidal voltage of the generator through blocks 4-.7 are fed to the horizontal buses 11 of the tablet 10 and the coordinate pick-up 13 converts an electric field formed by horizontal buses 11, phase-modulated signal -proportsionalny y coordinate.

Триггер 9 попеременно устанавливается то в единичное состояние, то в 65 нулевое, и на выходе съемника 13 формируется фазопеременное напряжение, модулированное либо координатой X, либо координатой У. Это напряжение поступает на вход формирователя 16, который в моменты перехода входного синусоидального напряжения через нулевое значение формирует короткий импульс. Блок 17 осуществляет фазирование этих импульсов с импульсами генератора частоты 1.The trigger 9 is alternately set to a single state, then to 65 zero, and a phase-voltage voltage is generated at the output of the puller 13, modulated either by the X coordinate or the Y coordinate. This voltage is supplied to the input of the shaper 16, which at the moments of the input sinusoidal voltage transitions through the zero value forms a short impulse. Block 17 performs phasing of these pulses with pulses of the frequency generator 1.

При установке триггера 9 в единичное состояние выходные импульсы блока 17, фаза которых пропорциональна координате X, через элемент И 18 поступают на вход первого дешифратора 20, а при установке триггера 9 в нулевое состояние выходные импульсы блока 17, фаза которых пропорциональна коорцинате У, через элемент И 19 поступают на вход второго дешифратора 21. В момент поступления импульса на вход дешифратора 20 (21) младшие разряды делителя 2 находятся в одном из четырех состояний: 00, 01, 10, 11. Каждому из этих состояний соответствует определенная эона перемещения- съемника 13. Эти зоны обозначим также: 00, 01, '10, 11.When the trigger 9 is set to a single state, the output pulses of block 17, whose phase is proportional to the coordinate X, go through the And 18 element to the input of the first decoder 20, and when the trigger 9 is set to zero, the output pulses of block 17, whose phase is proportional to the coordinate U, through the element And 19 go to the input of the second decoder 21. At the time of the pulse to the input of the decoder 20 (21), the least significant bits of the divider 2 are in one of four states: 00, 01, 10, 11. Each of these states corresponds to a certain aeon puller compartment 13. We will also designate these zones: 00, 01, '10, 11.

При'перемещении съемника координат 13 по рабочему полю планшета 10 вдоль координатной оси он поочередно проходит зоны 00,.01, 10, 11.,.. или 00, 11, 10, 01, ... в соответствии с направлением перемещения. В каждой из этих зон входной импульс дешифратора 20 (21) возбуждает соответствующую выходную шину, и при перемещении съемника координат 13 вдоль координатной оси в зависимости о.т направления перемещения имеет место последовательное возбуждение выходных шин 35, 36, 37, 38, ... или 35, 38,.37, 36, ... дешифратора 20 (21).When moving the coordinate remover 13 along the working field of the tablet 10 along the coordinate axis, it alternately passes zones 00, .01, 10, 11., .. or 00, 11, 10, 01, ... in accordance with the direction of movement. In each of these zones, the input pulse of the decoder 20 (21) excites the corresponding output bus, and when the coordinate remover 13 moves along the coordinate axis, depending on the direction of movement, the serial output buses 35, 36, 37, 38, ... or 35, 38, .37, 36, ... of the decoder 20 (21).

Сигналы выходных шин 35 и 37 дешифратора 20 (21) поступают на входы формирователя сигналов приращений 22 (23), а сигналы выходных шин 36 и 38 дешифратора 20 (21) поступают на входы селектора 24 (25). При возбуждении выходной шины 35 дешифратора 20 (21) формирователь 22 (23) на своем выходе вырабатывает один импульс, в том случае, если возбуждению шины 35 дешифратора 20 (21) предшествовало возбуждение шины 37 дешифратора 20 (21). При возбуждений выходной шины 37 дешифратора 20 (21) формирователь 22 (23) устанавливается в исходное состояние.The output bus signals 35 and 37 of the decoder 20 (21) are fed to the inputs of the incremental signal generator 22 (23), and the output bus signals 36 and 38 of the decoder 20 (21) are fed to the inputs of the selector 24 (25). When the output bus 35 of the decoder 20 (21) is excited, the driver 22 (23) generates one pulse at its output, if the excitation of the bus 35 of the decoder 20 (21) was preceded by the excitation of the bus 37 of the decoder 20 (21). When excitations of the output bus 37 of the decoder 20 (21), the shaper 22 (23) is set to its original state.

Выходной импульс формирователя 22 (23) через селектор 24 (25) проходит на первый его выход, если этому предшествовало возбуждение шины 36 дешифратора 20 (21), Или на второй его Выход, если этому предшествовало возбуждение шины 38 дешифратора (21), т.е. в зависимости от направления перемещения съемника координаты 13 по координатной оси X (У).The output pulse of the driver 22 (23) through the selector 24 (25) passes to its first output, if this was preceded by the excitation of the bus 36 of the decoder 20 (21), or to its second Output, if this was preceded by the excitation of the bus 38 of the decoder (21), i.e. e. depending on the direction of movement of the puller coordinates 13 along the coordinate axis X (Y).

Таким образом, при перемещении съемника координат 13 вдоль координатной оси X (У) на первом или втором 5 выходе (в зависимости от направления перемещения) селектора 24 (25) вырабатывается один импульс на каждый дискрет перемещения, т.е. селекторы 24 и 25 вырабатывают унитарные коды прира- 10 щения координат съемника 13 при его перемещении по рабочему полю планшета 10.Thus, when moving the coordinate remover 13 along the X (Y) axis at the first or second 5 output (depending on the direction of movement) of the selector 24 (25), one pulse is generated for each movement discrete, i.e. selectors 24 and 25 generate unitary codes for incrementing the coordinates of the puller 13 as it moves along the working field of the tablet 10.

Введение новых узлов и блоков позволяет существенно повысить точность 15 устройства.The introduction of new nodes and blocks can significantly improve the accuracy of 15 devices.

Claims

The invention relates to computing techniques, and more specifically, to coding graphic information, can be used in the complex with the preparation of control programs for actuating devices, as well as in processing systems for meteorological and other graphic information. According to the main auth. 703845, a device for reading graphic information is known, comprising a tablet with a system of mutually orthogonal buses connected to respective switching units, whose inputs are connected to a trigger and to a sinusoidal oscillator connected to a frequency divider whose input is connected to a frequency generator, and the output is connected to a control unit connected to the trigger inputs, and serially connected coordinate remover, switching unit, the other input of which is connected to the trigger, and the phase converting unit count -oscillations in the code, the other input of which is connected to the frequency generator GR A disadvantage of this device lies in its low accuracy in kodts1rovanii steering programs and to receive information is performed in increments of the coordinates. The purpose of the invention is to improve the accuracy of the device during the formation of coordinate increments. The goal is achieved by introducing into the known device the first element I, whose input is connected to one trigger output, the first decoder connected to the outputs of the first element AND and the frequency divider, the first incremental signal generator connected to the output of the first decoder, the first selector, inputs which is connected to the first increment signal generator and the decoder, and the output is the output of the device, and the sequencer connected reference driver, the input of which is connected to the removable the coordinates, the phasing unit of signals, another input of which is connected to the frequency generator, and the output is connected to another input of the first element And, the second element And, another input of which is connected to the output of the trigger, the second decoder, the other whose input is connected to the frequency divider, the second the increment signal generator and the second signal selector, another input of which is connected to the second decoder, and the output is another output of the device, while in the phase of the phasing of signals contains the third element And, one input of which is the block stroke, the other is connected to the output of the second trigger, and the output is connected to one input of the third trigger, the other input of which is connected to the output of the second trigger, and the fourth element And the inputs of which are connected to the third element AND and the third trigger, and the output is the output of the block and is connected to one input of the second trigger, the other input of which is another input of the bLock. Figure 1 presents the block diagram of the device; FIG. 2 shows an example of a specific embodiment of a phasing unit; FIGS. 3 and 4 show the constructive execution of the incremental signal generator and the signal selector, respectively. The device includes a frequency generator 1, a frequency divider 2, a generator of sinusoidal oscillations 3, a switching block 4–7, a control unit 8, a first trigger 9, a tablet 10 with horizontal 11 and vertical 12 coordinate buses, a coordinate remover 13, a switching unit 14, a block 15 converting the phase of oscillations into a code, shaper 16 reference pulses, block 17 of signal phasing, first 18 and second 19 elements And, first 20 and second 21 decoders, first 22 and second 23 increment signal generators, first 24 and second 25 signal selectors. In this case, block 17 contains the second trigger 26, the third trigger ger. 27, third 28 and fourth 29 elements And, formers 22 (23) contain fourth trigger 30 and fifth element 31 And, and selectors 24 (25) contain fifth trigger 32 and sixth 33 and seventh 34 elements I. The device works as follows . When trigger 9 is set to a single state, the sinusoidal voltages of the generator 3, through blocks 4-7, enter the vertical tires 12 of the plate 10 and the coordinate remover 13 converts the electric field formed by the vertical tires 12 into a phase-modulated signal proportional to the X coordinate,. setting the trigger 9 to the zero state, the sinusoidal voltages of the generator through the blocks 4-.7 enter the horizontal tires 11 of the plate 10 and the coordinate remover 13 converts the electric field formed by the horizontal tires 11 into the phase modulated signal, proportional to the Y coordinate. Trigger 9 is alternately set to one state, then to zero, and at the output of puller 13, a phase alternating voltage modulated by either the X coordinate or the Y coordinate is formed. This voltage is applied to the voltage of the former 16, which at the moments of transition of the input sinusoidal voltage through zero value forms a short one. pulse. Block 17 phases these pulses with pulses of a frequency generator 1. When trigger 9 is set to one, the output pulses of block 17, the phase of which is proportional to the x coordinate; element 18 enters the input of the first decoder 20, and when trigger 9 is set to the zero state, the output pulses of block 17, whose phase is proportional to the Y coordinate, comes through input 19 of the second decoder 21. At the time the pulse arrives at the decoder 20 (21) the younger bits of the divider 2 are in one of four states: 00, 01, 10, 11. Each of these states corresponds to a certain zone of movement - the puller 13. These zones are also denoted by: 00, 01, 10, 11 When moving the puller coordinates 13 on the working field tablet and 10 along the coordinate axis, it alternately passes zones 00 ,. 01, 10, 11 .... or 00, 11, 10, 01. ... in accordance with the direction of travel. In each of these zones, the input pulse of the decoder 20 (21) excites the corresponding output bus, and when the coordinate remover 13 moves along the coordinate axis, depending on the direction of movement, the output tires 35, 36, 37, 38, or 35, 38, .37, 36, ... decoder 20 (21). The signals of the output tires 35 and 37 of the decoder 20 (21) arrive at the inputs of the shaper signal increments 22 (23), and the signals of the output tires 36 and 38 of the decoder 20 (21) arrive at the inputs of the selector 24 (25). When the output bus 35 of the decoder 20 (21) is excited, the driver 22 (23) at its output generates a single pulse, if the tire 35 of the decoder 20 (21) was preceded by driving the tires: 37 of the decoder 20 (21). When the output bus 37 of the decoder 20 (21) is energized, the driver 22 (23) is reset. The output pulse of the driver 22 (23) through the selector 24 (25) passes to its first output, if it was preceded by excitation of the tire 36 of the decoder 20 (21), or to its second bypass, if it was preceded by the excitation of the tire 38 of the decoder 20 (21), t . depending on the direction of movement of the puller, coordinate 13 on the coordinate axis X (Y). Thus, when the coordinate remover 13 is moved along the coordinate axis X (Y) at the first or second output (depending on the direction of movement) of the selector 24 (25), one pulse is generated for each discrete movement, i.e. the selectors 24 and 25 produce unitary codes for the increment of the coordinates of the puller 13 as it moves along the working field of the tablet 10. The introduction of new nodes and blocks can significantly improve the accuracy of the device. Claims 1. Device for reading graphic information according to author. 703845 characterized in that, in order to improve the accuracy of the device, it contains the first AND whose input is connected to one trigger output, the first decoder — connected to the outputs of the first And element and the frequency divider, the first increment generator, connected to the output of the first decoder, the first selector, whose inputs are connected to the first increment signal generator and the decoder, and the output is the output of the device, and the serially connected reference driver, which input is connected to the removable ky coordinate unit phasing of signals, another input of which is connected to the frequency generator, and an output connected to another input of the first AND gate, a second AND gate, the other input of which is connected to the output triggera-, the second decoder, the other input thereof; connected to a frequency divider, an increment shaper and a second signal selector, the other input of which is connected to the second decoder, and the output is another output of the device.

2. The device according to claim 1, that is, that the signal phasing block contains the third element I, one input of which is the input of the block, the other connected to the output of the second trigger, and the output connected to one input the third trigger, the other input of which is connected to the output of the second trigger, and the fourth element AND, whose inputs are connected to the third And element and to the third trigger, and the output is the output of the block and connected to one input of the second trigger, the other input of which is different block input. Sources of information taken into account in the examination 1. USSR author's certificate D 703845, cl. G 06 K 11/06, 1977 (prototype).

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