SU821920A1 - Apparatus for recording information - Google Patents

Description

The invention relates to the registration of information, in particular to means of recording information on a bu; tape, and can be used in devices intended for outputting to digital printing data on changes in the state of monitored sensors, measurement time, etc.

A device for recording information is known that provides registration only when two or more variables are changed by a certain amount.

However, such a device is characterized by the complexity of the circuit and. limited number of registered. channels

It is also known to have a registering device containing a digitizing device, a print control unit, input buses, an analog-digital converter connected to a block of memory registers, the output of which is connected to the information input of the register selector, and the control input of the register selector connected to circuit switching 2.

However, in this device, printing is performed at any change in the input signal, which leads to an excess of printed information.

The purpose of the invention is to reduce the redundancy of the recorded information.

The goal is achieved by the fact that the device is equipped with a channel selector installed between the input buses and the analog-digital converter input, a recording selector connected between the analog-digital converter output and the memory register block input, and a digital comparator, one input of which

5 is connected to the output of the register selector, the second input is connected to the output of the analog-digital converter, and the output is connected to the print control unit, while the control inputs of the channel selector and recording are connected to the output of the channel switching unit, and the information input of the digital printer is connected to output of digital audio converter 5 l.

The drawing shows a diagram of the device.

The device contains input bus 1 connected through a selector.

0 2 channels with an analog-digital-to-digital converter input 3. An analog-to-digital converter output is connected by an information input of a digital printing device 4, One of the comparator 5 inputs, and through a record selector and a valve 7c block, 8 memory registers connected to the second input comparator 5, the output of which is connected to the print control unit 10. The output of the print control unit is connected to the trigger input of the digital printing device 4 and the valve 7. The channel switching unit 11 consists of a pulse generator 12 and a ring counter 13, the output of which is connected to the control inputs of the 2 channel selector, the record selector 6 and the register selector 9, and also with the input of the digital printing device 4 ,,

The device works as follows.

The pulse generator 12 generates pulses on the trigger signal or in the automatic mode, which change the state of the ring counter 13. The ring counter 13 has as many states as the number of channels to be connected. The connection time of the channels is determined by the pulse period of the generator and must be sufficient to pass all transients and provide printouts. The connection is made sequentially, in order of priority. In this case, one of the input buses 1 is connected to the input of the analog-digital converter 3, the output of the analog-digital converter is connected to the information input of the corresponding register of the memory register 8 block,. and the output of this register is sent to one of the inputs of the comparator 5. The analog signal from the selected selector 2 is converted to digital using an analog-digital converter 3 and is simultaneously fed to the second input of the comparator 5 and the information input of the digital printer 4. If the result of the comparison in the comparator the current value of the signal acting on this input bus 1 is not different from that recorded in the corresponding cell of memory register block 8 or differs from it by a specified amount; the output signal is comp The arator is not formed, printing is not performed, and the system waits for the next channel to be connected. If its current value is different from the one stored in the memory cells by a specified amount, a signal is generated at the output of the comparator, according to which the print control unit generates a resolution pulse; print arriving on launch

input digital printer. In this case, a print of the information on the number of the analog-digital output fed to the information inputs of the digital printer is printed. converter characterizing. the current (changed) status of the connected channel and the status of the ring counter 13, characterizing the sequence number of the connected channel .. The same trigger pulse

digital printing device pos-. it goes to valve 7 and opens it, as a result of which the memory cell currently connected using the selector b of the recording is produced

5, the new number will be recorded, further comparison of the current value of the measured value in this channel will be made already with this number.

Similarly, the connection and processing of information on all other channels, the number of which can be any.

The use of the present invention allows to provide output to the printout of changed by a certain amount of data on any number of channels, which simplifies further Processing of the received information.

Claims (2)

1. The UK patent 1301292, cl. Q 4 H, 1972.  . 2. Bodner V. А. and others. Multichannel system of registration of medicobiological indicators. 1 All-Union Scientific and Technical Symposium on the use of radio electronics in surgery. - Annotations and abstracts. Ivanovo, 1975 (prototype). Print resolution