SU647635A1

SU647635A1 - Time digital indication divice

Info

Publication number: SU647635A1
Application number: SU772504133A
Authority: SU
Inventors: Игорь Петрович Чеченин; Игорь Хацкелевич Маликин; Григорий Израильевич Симановский
Original assignee: Специализированное Проектно-Монтажное Управление
Priority date: 1977-07-06
Filing date: 1977-07-06
Publication date: 1979-02-15

Description

1one

Изобретение относитс к устройствам дл передачи и отображени сигналов времени .The invention relates to devices for transmitting and displaying time signals.

Известно устройство дл отображени времени, содержащее генератор импульсов, пересчетную схему, преобразователь кода, приемный регистр н блок индикации 1.A device for displaying time is known, comprising a pulse generator, a scaling circuit, a code converter, a receiving register and an indication unit 1.

Недостатком устройств вл етс заменное мерцание индикаторов.The drawback of the devices is the replaceable indicator blinking.

Известно устройство, содержащее генератор импульсов, пересчетную схему, коммутатор , передающий регистр, преобразователь двухпозиционного кода в трехпознцнонный, блок выделени тактовых импульсов, приемный регистр и блок индикации 2|.A device is known comprising a pulse generator, a scaling circuit, a switch, a transmitting register, a two-position code to three-way code converter, a clock extraction unit, a receiving register, and a display unit 2 |.

В известном устройстве приемный регистр хранит неполную информацию о текущем времени.In the known device, the receiving register stores incomplete information about the current time.

Цель изобретени - расширение функциональных возможностей и повышение надежности работы устройства.The purpose of the invention is to expand the functionality and increase the reliability of the device.

Указанна цель достигаетс тем, что предлагаемое устройство дополнительно содержит блок программного управлени и блок графического преобразовани , входы которого соединены с выходами коммутатора, выходы - с входами передающего регистра.This goal is achieved by the fact that the proposed device further comprises a software control unit and a graphic conversion unit, the inputs of which are connected to the outputs of the switch, the outputs to the inputs of the transmitting register.

а входы блока программного управлени соединены с выходами приемного регистра и выходом блока выделени тактовых импульсов .and the inputs of the program control unit are connected to the outputs of the receiving register and the output of the clock extraction unit.

На чертеже показана блок-схема устройства цифровой индикации времени.The drawing shows a block diagram of a digital time display device.

Устройство содержит генератор импульсов 1, пересчетную схему 2, коммутационный счетчик 3, коммутатор 4, блок 5 графического преобразовани , передающий регистр 6, формирователь 7 сдвигающих импульсов, формирователь 8 знакопеременного кода, блок 9 выделени тактовых импульсов, приемный регистр 10, блок индикации 11 н блок 12 программного управлени .The device contains a pulse generator 1, a scaling circuit 2, a switching counter 3, a switch 4, a graphic conversion unit 5, transmitting a register 6, a shifting pulse shaper 7, an alternating code shaper 8, a clock extracting block 9, a receiving register 10, a display unit 11 n software control block 12.

Устройство работает следующим образом.The device works as follows.

Claims

The pulses from the output of the pulse generator 1 are fed to the input of the counting circuit 2, in which the time is counted in the binary-decimal system. The switching counter 3 outputs the permitting potentials to the switch 4, with the help of this switch one of the decades of the counting circuit 2 is connected in series to the input of the graphic conversion block 5. From the output of the graphic conversion unit 5, the code of the corresponding decade is written to the transmitting register via parallel buses 6. Shifting pulse generator 7 generates shift pulses for transmitting register 6 after firing the last 4 code of the 4th decade (digit) time. From the transmitting register into a sequence of pulses is fed to the shaper 8 of an alternating code, which converts the potentials of the logical lesson into signals of the type "Meander. The converted signal is fed to the input of the clock extraction unit 9, it allocates clock pulses and the information sequence supplied to the input of the receiving register 10. The information filling the receiving register 10 is stored in it and changes upon the next arrival of the time code from the primary clock after 1 s. The complete time information on the receiving register 10 controls the display unit 11 and in parallel arrives at the program control unit 12, which generates control signals according to a predetermined time program. A blocking potential enters the Olok 12 of the aerogram control from the clock extraction unit 9 in order to eliminate the false triggering of the unit 12 at the moment information is entered into it. Due to the organization of the static display mode, the receiving register stores full time information. The invention The device is a digital display of time, containing a pulse generator, scaling circuit, switching counter, switch, transmitting register, driver of shifting pulses, driver of alternating code, clock extracting unit, receiving register, display unit, characterized in that, with the functionality wipe function and increase the reliability of the device, a software control block and a graphic conversion block are entered into it, the inputs of which are connected to the outputs switch outputs - with a transmitting register inputs, and inputs the program control unit connected to the receiving register output and clock extracting unit. Sources of information taken into account in the examination 1. For France of France No. 2227571, cl. G 04 C 13/00, 1966.

2. USSR author's certificate number 481872, cl. G 04 C 13/00, 1973.