SU627503A1

SU627503A1 - Information compressing device

Info

Publication number: SU627503A1
Application number: SU762380979A
Authority: SU
Inventors: Владимир Константинович Шмидт; Константин Константинович Рябцев
Original assignee: Ленинградский Ордена Ленина Электротехнический Институт Имени В.И.Ульянова(Ленина)
Priority date: 1976-07-01
Filing date: 1976-07-01
Publication date: 1978-10-05

Description

Изобретение относитс к автоматике и вычислительной технике и может быть использовано в многоканальных системах обработки информации и передачи ее в ЦВМ.The invention relates to automation and computing and can be used in multichannel information processing systems and transmitting it to digital computers.

Известны устройств ввода информации в ЦВМ 1, содержащие аналоговые датчики , выходы которых подключены к СИР-. иальным входам коммутатора каналов и коммутатора адресов, экстрапол тор, аналого-иис эовой преобразователь, соединенный с блоками пам ти.Known input devices information in digital computers 1, containing analog sensors, the outputs of which are connected to SIR-. to the normal inputs of the channel switch and the address switch, an extrapolator, an analogue converter, connected to the memory blocks.

Эти устройства имеют большую динамическую погрешность.These devices have a large dynamic error.

Наиболее близким техническим решением к предложенному вл етс устройствоThe closest technical solution to the proposed device is

2, содержащее аналогогаые датчики, выходы которых подключены к сигнальным входам коммутатора каналов и коммутатора адресов: выход коммутатора каналов через аналого-пифровсЛ преобразователь соединен с входом блока буферной пам ти и первым вхопом блока оперативной пам ти, второй -вход которого соединен с управл ющим выходом коммутатора ад ресов , а третий вход - с управл ющим входом коммутатора каналов; выход блока оперативной пам ти соединен со входом цифроаналогового преобразовател ..2, containing analogous sensors whose outputs are connected to the signal inputs of a channel switch and an address switch: the output of a channel switch is connected via an analog-pyravl converter to the input of a buffer memory unit and the first input of the main memory unit, the second input of which is connected to the control output the address switch, and the third input — with the control input of the channel switch; the output of the memory unit is connected to the input of the digital-to-analog converter ..

Это устройство имеет невысокое бысггродействие из-за просто аналого-цифрового преобразовател во врем преобразовани сигналов aнaлoгoвь x датчиков.This device has a low speed due to a simple analog-to-digital converter during the conversion of signals from analog sensors.

Цель изобретени - повышение быстродействи устройства.The purpose of the invention is to increase the speed of the device.

Эта цель достигаетс тем, что в устройство введены экстра пол тор и блок выделени за вки, выход которого соединен с управл ющим входом коммутатора каналов. Выходы коммутатора адресов и цифроаналогового преобразовател соеаинены с соответствующими входами экстрапол тора , выход которого соединен с первым входом блока выделени за вки, к другим входам которого соответственно подключены выход аналого.-цифрового преобразовател и второй вход блока оперативной пам ти.This goal is achieved by the fact that an extra floor and an application block are inserted into the device, the output of which is connected to the control input of the channel switch. The outputs of the address switch and the D / A converter are connected to the corresponding inputs of the extrapolator, the output of which is connected to the first input of the allocation unit, to the other inputs of which the output of the analog-digital converter and the second input of the operational memory unit are respectively connected.

Claims

The drawing shows the functional 1a diagram of the proposed device. 36 The outputs of analog sensors 1 are connected to the signal inputs of switches 2, 3 channels and addresses, respectively. The switch 2 output of the channel is connected via an analog-to-digital converter 4 to the input of the buffer memory block 5 and to the first input of the main memory block, the second input of which is connected to the control output of the 3 address switch and the third input to the control input switch 2 channels. The output of the main memory unit 6 is connected to the input of a digital-to-analog converter 4. L 7, the output of which is connected to one of the inputs of the extrapolator 8, to the other input of which the output of the switch 3 of addresses is connected. The extraction of the extrapopulator 3 is connected to the first input of the extraction unit 9, to the other inputs of which, respectively, are connected, an analog-digital converter 4 and a second input of the -6 RAM. The output of the allocation unit 9 is connected to the control input of the 2-channel switch. The device works as follows. The switch 3 addresses in series connects the analog sensor 1 sensors to the sstrapopor S and generates address codes corresponding to the switched signals. These codes go to the address register of the RAM block 6 and into the block 9 of the application. At these addresses, the codes of the last significant samples are selected from the RAM block, whose analog equivalents, converted into digital-analogue F. Converter 7, are fed to another input of the extrapolator 8. The results of the comparison between the current and the predicted comparison with the setting are received at block 9 for vki. Applications are generated there for: converting these signals if the differences of the signals received in extrapolator 8 exceed the value of the predetermined setpoint. Based on the applications available for block Ii 9, the application generates the address of the signal having the highest priority among the signals requiring conversion. At this address, the 2-channel switch connects the output of the corresponding gear 1 to the input of the analog-digital converter 4. When the conversion ends, the converter 4 generates a signal that the selection block 9 of the application generates the address of the new signal that needs conversion, and the conversion result is written to the operational memory. block 6 at the address of this signal and into the buffer memory of blot 5, 1 serving f for smoothing the output data stream, which may be uneven if the analog-to-digital converter l 4 is idle. For signals from analog sensors 2, a priority system can be introduced, which changes according to the rate of change of signals, which allows, in the proposed device, to process signals with increased speed beyond the limits of the settings. and having the highest priority. Claims An apparatus for compressing information, comprising analog sensors, the outputs of which are connected to the signal inputs of a circuit breaker and an address switch; the output of the channel switch is connected via an analog-digital converter to, the input of the buffer memory block and the first input of the RAM block, the second input of which is connected to the control-. the output of the address switch, and the third input with the control input of the channel switch; the output of the memory unit is connected to the input of qi ({analogue converter, distinguished by the fact that, in order to increase the speed of the device, an extrapolator and an allocation unit for the output of the switchboard of the channel switch, the address switch outputs and a digital-to-analog converter, connected to the corresponding input extrapol 1 ora, the output of which is connected to the first input of the selection unit, applications, to the other inputs of which, respectively, the output of the analog-to-digital converter is connected verters and the second input of the operational memory block of information sources, the received note in the examination:. 1.Frenke A..V, Telemetering, 1975: 232-234...

2. USSR Author's Certificate No. 25 965 9, cl. G 08 C 15/00, 15.02,68.