SU734751A1

SU734751A1 - Device for reading-out graphic information

Info

Publication number: SU734751A1
Application number: SU772530539A
Authority: SU
Inventors: Евгений Леонидович Ковалев; Сергей Георгиевич Пойденко; Иван Иванович Коноводченко; Валерий Семенович Гузеев
Original assignee: Предприятие П/Я А-1772
Priority date: 1977-10-04
Filing date: 1977-10-04
Publication date: 1980-05-15

Description

Изобретение относится к области автоматики и вычислительной техники, в частности к устройствам для считывания графической информации, и может быть использовано для считывания двухградадион— ных· знаков иди геометрических фигур. ⁵ The invention relates to the field of automation and computer engineering, in particular to devices for reading graphic information, and can be used to read two-grad · signs or go geometric shapes. ⁵

Известно устройство для считывания графической информации, содержащее телевизионный датчик, выход которого через блок памяти соединен с блоком логичес- . кого анализа временных интервалов; блок ^,0управления, подключенный к блоку памяти и к блоку логического анализа временных интервалов, элементы И, ИЛИ £1^.A device for reading graphic information containing a television sensor, the output of which is connected through a memory block to a logic block. someone analyzing time intervals; block ^{, 0} control, connected to the memory block and to the block of the logical analysis of time intervals, the elements AND, OR £ 1 ^.

Недостаток этого устройства состоит , в его конструктивной сложности.The disadvantage of this device is its structural complexity.

Известно также устройство* содержащее блок памяти, вход которого соединен с телевизионным датчиком, а один выход подключен к первому логическому блоку, вто»^ рой логический блок и элемент ИЛИ “|2j.It is also known a device * containing a memory block, the input of which is connected to a television sensor, and one output is connected to the first logical block, the second is a ^ logical block and an OR element | 2j.

Последнее из перечисленных устройств наиболее близко к описываемому техническому решению. Его недостаток заключает2 ся в недостаточно высоком быстродействии устройства.The last of the listed devices is closest to the described technical solution. Its disadvantage lies in the insufficiently high speed of the device.

Цель изобретения состоит в повышении быстродействия устройства.The purpose of the invention is to improve the performance of the device.

Поставленная цель достигается тем, что в предлагаем ом устройстве другой выход блока памяти соединен со вторым логическим блоком, подключенным к одному из входов элемента ИЛИ, другой вход которого соединен с первым логическим блоком, а выход — подключен к выходу блока, а также тем, что блок намята содержит последовательно соединенные элементы задержки, вход первого из которых подключен ко входу и выходу блока, а выходы элементов задержки соединены с выходом блока, логические блоки содержат первый селектор импульсов, входы которого соединены со входом блока, а выходы подключены ко второму селектору импульсов, соединенному со входом блока, и к первому элементу ИЛИ, соединенному со вторым селектором импульсов, третий селектор импульсов, подключенный к выходу второго эпемеятаThis goal is achieved by the fact that in the proposed device, the other output of the memory unit is connected to a second logical unit connected to one of the inputs of the OR element, the other input of which is connected to the first logical unit, and the output is connected to the output of the unit, and also by the fact that the jammed block contains series-connected delay elements, the input of the first of which is connected to the input and output of the block, and the outputs of the delay elements are connected to the output of the block, logical blocks contain the first pulse selector, the inputs of which are connected are connected to the input of the unit, and the outputs are connected to the second pulse selector connected to the input of the unit, and to the first OR element connected to the second pulse selector, the third pulse selector connected to the output of the second epheme

ИЛИ, ко входу блока и ко второму селектору импульсов, и третий элемент ИЛИ, входы которого соединены с селекторами импульсов, а выход - с выходом блока, а селекторы импульсов содержат инверторы, ₅соединенные с первыми и вторым элементами И.OR, to the input of the block and to the second pulse selector, and the third OR element, whose inputs are connected to the pulse selectors, and the output to the output of the block, and the pulse selectors contain inverters ₅ connected to the first and second elements I.

На фиг. 1 представлена блок-схема устройства; на фиг. 2 и 3 - конструктивное выполнение блока памяти и логических Ю блоков соотвественно.In FIG. 1 shows a block diagram of a device; in FIG. 2 and 3 - constructive execution of the memory block and logical U blocks, respectively.

Устройство включает телевизионный датчик 1, блок памяти 2, первый 3 и второй 4 логические блоки, элемент ИЛИ 5,-элементы задержки 6-11, селекторы ¹⁵импульсов 12, содержащие элементы И 13, инверторы 14, элементы И 15, и элементы ИДИ 16—18.The device includes a television sensor 1, a memory unit 2, the first 3 and second 4 logical blocks, an OR element 5, delay elements 6-11, pulse pickers ¹⁵ , containing AND elements 13, inverters 14, AND elements 15, and IDI elements 16 -18.

Устройство работает следующим образом. ²⁰ The device operates as follows. ²⁰

На выходах блока 2 формируются сигналы, соответствующие заданному числу смежных элементов изображения, а именно на выходах элементов задержки- 6-11 семь сигналов, соответствующих смежным ²⁵ элементам строк, а на отводах элементов задержки — соответствующие семи смежным . элементам строки. В плоскости изображения блок 2 образует сканирующую крестообразную апертуру, размеры которой опре- ³⁰деляют максимальную ширину знаков, считываемых предлагаемым устройством при условии произвольной ориентации знака в поле зрения телевизионного датчика 1, Сигналы с каждой из групп выходов бло- ³⁵ка 2 поступают на входы соответствующих логических блоков 3 или 4 анализа смежных элементов изображения, предназначенных для определения такой комбинации ^сиг^0 налов на его входе, которой соответствовало бы симметричное положение Горизонтального (вертикального) сечения фигуры относительно соответствующей образующей крестообразной апертуры. Последовательное соединение двухвходовых элементов И 13 селекторов импульсов 12, образующих две цени, позволяет прослеживать связь элементов, составляющих сечение фигуры относительно центрального элемента образующей крестообразной апертуры, т.е. ^S0если хотя бы один из сигналов, поданных на входы последовательно соединенных элементов И 13, равен нулю, то на выходах всех последующих элементов И сигналы 55 также будут равны нулю. Четырехвходовые элементы И 15 . и трехвходовый элемент И 15 соединены с выходами пар двухахо— Довых элементов И 13 так, что появление логической *1 на выходе одного из них возможно лишь при одновременном выполнении следующих условий:At the outputs of block 2, signals corresponding to a given number of adjacent picture elements are generated, namely, at the outputs of the delay elements, there are 6-11 seven signals corresponding to adjacent ²⁵ line elements, and at the taps of the delay elements corresponding to seven adjacent ones. line items. The plane unit 2 forms an image scanning cross-shaped aperture whose dimensions determine the maximum width of fissile ³⁰ characters readable proposed device provided arbitrary orientation mark in a field of view of television transmitter 1, signals from each of the ³⁵ output groups Bloch ka 2 to the inputs of the respective logic blocks 3 or 4 adjacent picture element analysis for determining a combination of ^sig = 0 to catch at its input, which would correspond to a symmetrical position Horizontal (vertical) section of the figure relative to the corresponding generatrix of the cross-shaped aperture. The serial connection of two-input elements And 13 pulse selectors 12, forming two values, allows you to trace the relationship of the elements that make up the cross section of the figure relative to the central element of the generatrix of the cross-shaped aperture, i.e. ^S0, if at least one of the signals supplied to the inputs of series-connected elements And 13 is equal to zero, then at the outputs of all subsequent elements And signals 55 will also be zero. Four-input elements And 15. and the three-input element And 15 are connected to the outputs of the pairs of two-way - Do elements And 13 so that the appearance of a logical * 1 at the output of one of them is possible only if the following conditions are met simultaneously:

на обоих выходах хотя бы одной пары двухвходовых элементов И 13 сигналы будут равны логическому О (граница сечения фигуры);at both outputs of at least one pair of two-input AND elements 13, the signals will be equal to logical O (the boundary of the section of the figure);

на всех выходах предыдущих пар элементов И 13 сигналы должны быть равны логической 1 (состояние, соответствующее симметричному расположению сечения фигур относительно центра апертуры). При этом допускается наличие не более одной пары элементов И 13, в которой состояния выходов были бы равны единице на первом и нулю на втором (однозначная фиксация сечения относительно центра апертуры при четном количестве элементов в сечении) . Сигналы с выходом элементов И 15, объединяясь через элемент ИЛИ 18, формируют выходной сигнал блоков 3, 4 анализа смежных элементов изображения, однозначно учитывая комбинации входных сигналов, соответствующие симметричному положению вертикального (горизонтального) сечения фигуры относительно центра апертуры (сигнала с выхода блока 2 при любом размере сечения линии знака, меньше пяти элементов). При таком построении логических блоков 3, 4 объединение через элементы ИЛИ 5 их выходных сигналов обеспечивает инвариантность устройства считывания к произвольной ориентации знаков или геометрических фигур.at all outputs of the previous pairs of AND 13 elements, the signals should be equal to logical 1 (the state corresponding to the symmetrical location of the section of the figures relative to the center of the aperture). In this case, the presence of no more than one pair of And 13 elements is allowed, in which the output states would be equal to one on the first and zero on the second (unambiguous fixing of the section relative to the center of the aperture with an even number of elements in the section). The signals with the output of AND elements 15, combining through the OR element 18, form the output signal of blocks 3, 4 of the analysis of adjacent image elements, unambiguously taking into account the combination of input signals corresponding to the symmetrical position of the vertical (horizontal) section of the figure relative to the center of the aperture (signal from the output of block 2 at any size of the sign line section, less than five elements). With this construction of logical blocks 3, 4, the combination of their output signals through the OR elements 5 ensures the readability of the reader to arbitrary orientation of signs or geometric shapes.

Введение новых конструктивных связей и новое-конструктивное выполнение логических. блоков и блока памяти позволило существенно повысить быстродействие устройства.The introduction of new constructive relationships and a new constructive implementation of logical. blocks and memory block has significantly improved the performance of the device.

Claims

(54) DEVICE FOR READING GRAPHIC INFORMATION The invention relates to the field of computer and computer technology, in particular, devices for reading graphic information, and can be used to read two-graded signs of geometric shapes. A device for reading graphic information is known, comprising a television sensor, the output of which is connected via a memory block to a logical analysis block of belt intervals; a control unit connected to the memory unit and to the logical analysis unit of the time of the / gene intervals, elements AND, OR | lj. The disadvantage of this device lies in its structural complexity. It is also known a device containing a memory block, the input of which is connected to a television sensor, and one output is connected to the first logic unit, the second logical unit and the OR jj element. The following of the listed approaches is closest to the described solution. Its disadvantage is that the C does not have a high enough speed of the VII device. The purpose of the invention is to increase the device's speed. The goal is achieved by the fact that in the device another memory unit is connected to the second logic unit connected to one of the inputs of the OR element, the rods are connected to the first logical unit, and the output is connected to the output of the unit, as well as the memory block contains serially connected delays, the first of which is connected to the input and output of the block, and 1 outgoing delay elements are connected to the output of the block; logical blocks contain the first village of & TOR pulses, the inputs of which are connected to the input m block, and connected to the second pulse selector connected to the input of the block, and to the first element OR connected to the second pulse selector, the third pulse selector connected to the code of the second element OR, to the input of the block and to the second pulse set, and the third element OR, whose output is connected to the pulse selectors, and the output to the output of the block, and the pulse selectors contain inverters connected with the first and second elements and I. Fng. 1 is a block diagram of the device; in fig. 2 and 3, constructive execution of the memory block and logical blocks, respectively. The device includes a television sensor 1, a memory block 2, the first 3 and second 4 logic blocks, an Element 1 or 5, delay elements 6–11, pulse selectors 12 containing elements And 13, Shgvertory 14, elements And 15, and elements IDN 16 -18. The device works as follows. At the outputs of block 2, signals are generated that correspond to a specified number of adjacent image elements, and at the outputs of aderlosi 6-11 elements there are seven signals corresponding to adjacent elements of lines, and at delays of delay elements - seven corresponding elements lines. In the image plane, block 2 forms a scanning cruciform aperture, the dimensions of which determine the maximum width of characters read by the proposed device under an arbitrary orientation of the sign in the viewpoint of the television sensor 1. The signals from each of the output groups of block 2 are input to the corresponding logical blocks 3 or 4 analyzes of adjacent image elements intended to determine such a combination of seals on its Decoder, which would correspond to the symmetrical position of the Horizontal (ver ticking) section of the figure with respect to the corresponding forming arcuate aperture. The successive connection of two-input elements And 13 pulse selectors 12, forming two chains, makes it possible to trace the connection of elements that make up the cross section of the figure merging with respect to the central element forming the cruciform aperture, i.e. if at least one of the signals applied to the inputs of series-connected elements And 13 is zero, then the outputs of all subsequent elements AND signals will also be zero. Four-input elements and 15. and the three-input element And 15 are connected to the outputs of pairs of two-axial EttJx elements And 13 so that the appearance of an ogic at the output of one of them is possible only with the simultaneous fulfillment of the following conditions; on both outputs of at least one pair of two-input elements, And 13 sigals will be equal to logical O (the boundary of the section of the figure); on all outputs of the previous pairs of elements And 13 the signals must be equal to the logical one (the state corresponding to the symmetrical arrangement of the section of the figures relative to the center of the aperture). In this case, it is allowed to have no more than an OY pair of elements And 13, in which the states of the outputs would be equal to one at the first and zero at the second (unequivocally fixing the section relative to the center of the aperture with an even number of elements in the section). The signals from the output of elements AND 15, combined through the element OR 18, form the output signal of blocks 3, 4 of the analysis of adjacent image elements, one taking into account the combination of input signals corresponding to the symmetrical position of the vertical (horizontal) section of the figure relative to the center of the aperture (signal from the output of the block 2 at any size of the cross section of the sign line, less than five elements). With such a construction of logical blocks 3, 4, combining the output signals through the OR 5 elements of the output signal ensures the invariance of the reader to an arbitrary orientation of the signs or geometric shapes of the gur. The introduction of new structural links and a new construction of logical blocks and memory blocks has significantly improved the speed of the device. Claim 1. A device for reading graphical data containing a memory block, the input of which is connected to a television sensor, and one output is connected to a logic unit, a second logic unit and an OR element, in order to improve speed device, in it another output of the memory unit is connected to the second logic unit connected to the input unit of the OR element, the other input of which is connected to the first logic unit, and the output is connected to the output unit. 2. The device according to claim 1, characterized in that the memory block contains sequentially connected elements of the rear | ), the first input is connected to the input and output of the block, and the outputs of the delay elements are connected to the output of the block. 3. The device according to clause .1, о, tl and ch e e so that the logic blocks contain the first pulse selector, whose inputs are connected to the input of the block, and the outputs are connected to the second pulse selector connected to the input of the block, and to the first OR element connected to the second pulse selector, the third Pulse selector, connected to the output 73 1 of the second OR element, to the input of the unit and to the pulse selector, and the third OR element, whose inputs are connected to the pulse selectors, and the output - with the output of the block. 4. The device according to claim 3, in which the pulse selectors contain inverters connected to the first and second elements I. Sources of inference, taken into account during the examination 1. French Patent No. 2131U86, cl. Q 06 K 9/00, publ. 1972.

2. US patent number 3873972, cl. 34O-146.3, publ. 1975 (iIpoToiraiJ,

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