RU2514786C1 - Analogue selector - Google Patents

Abstract

FIELD: information technology.

SUBSTANCE: device includes two sorters (11, 12), two MAX elements (21, 22) and two MIN elements (31, 32), wherein each sorter includes a comparator (4), an XOR element (5) and two switches (61, 62).

EFFECT: reproducing dual operations of selecting a minimum and a maximum, or dual operations of selecting a supraminimum or submaximum of four input analogue signals.

1 dwg

Description

The invention relates to automation and analog computing and can be used to build functional units of analog computers, means of automatic regulation and control, analog processors, etc.

Known analog selectors (see, for example, ed. St. USSR 1322325, class G06G 7/25, 1987), which reproduce the dual operations of selecting the minimum and maximum of the two input analog signals.

The reason that impedes the achievement of the technical result indicated below when using known analog selectors includes limited functionality, due to the fact that processing of four analog signals is not allowed.

The closest device of the same purpose to the claimed invention according to the totality of features is the analog selector adopted as a prototype (Fig. 2 in the description of the invention to the auth. Of the USSR 1718237, class G06G 7/12, 1992), which contains a sorter and reproduces dual operations of separation of the minimum and maximum of the two input analog signals.

The reason that impedes the achievement of the technical result indicated below when using the prototype is limited functionality due to the fact that processing of four analog signals is not allowed.

The technical result of the invention is the expansion of functionality by ensuring the reproduction of dual operations of selecting the minimum and maximum or dual operations of selecting supraminimum and submaximal from four input analog signals.

переключатель, подсоединенный нормально замкнутым, нормально разомкнутым и коммутационным контактами соответственно к i-му, (3-i)-му входам и i-му выходу сортировщика, особенность заключается в том, что в него дополнительно введены аналогичный упомянутому сортировщик, два элемента МАХ, два элемента MIN и в каждый сортировщик дополнительно введен элемент ИСКЛЮЧАЮЩЕЕ ИЛИ, первый, второй входы и выход которого соединены соответственно с выходом компаратора, входом управления сортировщика и управляющим входом переключателей, причем первый и второй выходы j-го $$(j=\overline{\mathrm{1,2})}$$

сортировщика соединены соответственно с j-ми входами первых элементов МАХ и MIN, подключенных выходами соответственно к объединенным первым и объединенным вторым входам вторых элементов MAX, MIN, выходы которых являются соответственно первым, вторым выходами аналогового селектора, подсоединенного настроечным и ((j-1)×2+i)-ым информационным входами соответственно к входу управления и i-му входу j-го сортировщика.The specified technical result in the implementation of the invention is achieved by the fact that in the analog selector containing the sorter, which contains a comparator connected by non-inverting and inverting inputs, respectively, to the first and second inputs of the sorter, and the 1st $$(i=\overline{\mathrm{1,2})}$$

a switch connected by a normally closed, normally open and switching contacts, respectively, to the i-th, (3-i) -th inputs and i-th output of the sorter, the peculiarity is that it additionally includes the same sorter, two MAX elements, there are two MIN elements and an EXCLUSIVE OR element is added to each sorter, the first, second inputs and the output of which are connected respectively to the output of the comparator, the control input of the sorter and the control input of the switches, the first and w ora j-th outputs $$(j=\overline{\mathrm{1,2})}$$

sorters are connected respectively with the j-th inputs of the first elements MAX and MIN, connected by the outputs respectively to the combined first and combined second inputs of the second elements MAX, MIN, the outputs of which are respectively the first, second outputs of the analog selector connected to the tuning and ((j-1) × 2 + i) -th information inputs, respectively, to the control input and i-th input of the j-th sorter.

The drawing shows a diagram of the proposed analog selector.

соединены соответственно с i-ым, (3-i)-ым входами и i-ым выходом сортировщика. Первый и второй выходы сортировщика 1_j $$(j=\overline{\mathrm{1,2})}$$

соединены соответственно с j-ми входами элементов 2₁ и 3₁, подключенных выходами соответственно к объединенным первым и объединенным вторым входам элементов 2₂, 3₂, выходы которых являются соответственно первым, вторым выходами аналогового селектора, подсоединенного настроечным и ((j-1)× 2+i)-ым информационным входами соответственно к входу управления и i-му входу сортировщика 1_j.The analog selector contains sorters 1 ₁ , 1 ₂ , elements MAX 2 _1, 2 ₂ and elements MIN 3 ₁ , 3 ₂ . Each sorter contains a comparator 4 connected by non-inverting, inverting inputs and output respectively to the first, second inputs of the sorter and the first input of the EXCLUSIVE OR 5 element, the second input and output of which are connected respectively to the control input of the sorter and the control input of switches 6 ₁ , 6 ₂ , and normally closed, normally open and switching contacts of switch 6 _i $$(i=\overline{\mathrm{1,2})}$$

connected respectively with the i-th, (3-i) -th inputs and the i-th output of the sorter. The first and second outputs of the sorter 1 _j $$(j=\overline{\mathrm{1,2})}$$

connected respectively with the j-th inputs of the elements 2 ₁ and 3 ₁ , connected by the outputs respectively to the combined first and combined second inputs of the elements 2 ₂ , 3 ₂ , the outputs of which are respectively the first, second outputs of the analog selector connected to the tuning and ((j-1 ) × 2 + i) -th information inputs, respectively, to the control input and the i-th input of the sorter 1 _j .

The work of the proposed analog selector is as follows. At its first, ..., fourth information and tuning inputs, the analog signals (voltages) x ₁ , ..., x ₄ and the control signal f∈ {0, l}, respectively, are to be processed. If there is a log at the control input of the sorter. “0” (log. “1”) and the signal at its first input is less than or greater than the signal at its second input, then the normally closed contact of each of its switches is respectively closed (open) or open (closed), and the normally open contact is respectively open ( closed) or closed (open). Therefore, if f = 0 (f = 1), then at the first and second outputs of each sorter, the minimum (maximum) and maximum (minimum) of the signals applied to its first, second inputs are allocated. Thus, at the first, second outputs of the proposed analog selector, we have

$$Z_{\mathrm{one}}=\{\begin{array}{l}{x}_{\mathrm{one}}v{x}_{2}v{x}_{3}v{x}_{\mathrm{four}}v{x}_{\mathrm{one}}{x}_2{x}_3{x}_{\mathrm{four}}=x_{\mathrm{one}}v{x}_{2}v{x}_{3}v{x}_{\mathrm{four}}=\max (x_{\mathrm{one}},x_2,x_3,x_{\mathrm{four}})\text{at f}=\text{one}\\ x_{\mathrm{one}}{x}_{2}v{x}_3{x}_{\mathrm{four}}v(x_{\mathrm{one}}v{x}_2)(x_{3}v{x}_{\mathrm{four}})=\text{,}\\ =x_{\mathrm{one}}{x}_{2}v{x}_{\mathrm{one}}{x}_{3}v{x}_{\mathrm{one}}{x}_{\mathrm{four}}v{x}_2{x}_{3}v{x}_2{x}_{\mathrm{four}}v{x}_3{x}_{\mathrm{four}}=sub\max (x_{\mathrm{one}},x_2,x_3,x_{\mathrm{four}})\text{at f}=\text{0}\end{array}$$

$$Z_2=\{\begin{array}{l}(x_{\mathrm{one}}v{x}_{2}v{x}_{3}v{x}_{\mathrm{four}})x_{\mathrm{one}}{x}_2{x}_3{x}_{\mathrm{four}}=x_{\mathrm{one}}{x}_2{x}_3{x}_{\mathrm{four}}=\min (x_{\mathrm{one}},x_2,x_3,x_{\mathrm{four}})\text{at f}=\text{one}\\ (x_{\mathrm{one}}{x}_{2}v{x}_3{x}_{\mathrm{four}})(x_{\mathrm{one}}v{x}_2)(x_{3}v{x}_{\mathrm{four}})=\text{,}\\ =x_{\mathrm{one}}{x}_2{x}_{3}v{x}_{\mathrm{one}}{x}_2{x}_3{x}_{\mathrm{four}}v{x}_{\mathrm{one}}{x}_3{x}_{\mathrm{four}}v{x}_2{x}_{\mathrm{four}}=\sup ra\min (x_{\mathrm{one}},x_2,x_3,x_{\mathrm{four}})\text{at f}=\text{0}\end{array}$$

where the symbols ·, v denote the operations min, max. That is, for f = 1 or f = 0, the dual operations min (x ₁ , x ₂ , x ₃ , x ₄ ) and max (x ₁ , x ₂ , x ₃ , x ₄ ) or the dual operations supramin (x ₁ , x ₂ , x ₃ , x ₄ ) and submax (x ₁ , x ₂ , x ₃ , x ₄ ).

The above information allows us to conclude that the proposed analog selector has wider functionality compared to the prototype, since it provides the reproduction of dual operations of selecting the minimum and maximum or dual operations of selecting the supraminimum and submaximal from four input analog signals.

Claims (1)

An analog selector designed to isolate the minimum and maximum or supraminimum and submaximum of the four input analog signals, containing a sorter that contains a comparator connected by non-inverting and inverting inputs respectively to the first and second inputs of the sorter, and the i-th

a switch connected by normally closed, normally open and switching contacts, respectively, to the i-th, (3-i) -th inputs and i-th output of the sorter, characterized in that it additionally includes a sorter similar to the aforementioned, two MAX elements, two elements MIN and an EXCLUSIVE OR element is additionally introduced into each sorter, the first, second inputs and the output of which are connected respectively to the output of the comparator, the control input of the sorter, and the control input of the switches, the first and second outputs j- go

sorters are connected respectively with the j-th inputs of the first elements MAX and MIN, connected by the outputs respectively to the combined first and combined second inputs of the second elements MAX, MIN, the outputs of which are respectively the first, second outputs of the analog selector connected to the tuning and ((j-1) × 2 + i) -th information inputs, respectively, to the control input and i-th input of the j-th sorter.