SU562810A1 - Code Signal Splitter - Google Patents

Description

The invention relates to automation and pulverizing technology and can be used, for example, in telemetry processing devices: and pest control, which is harmful to sequential codeM, which is generated from you at various devices installed on a moving object, and in other cases.

Distributors are known that are used in various automation and remote control systems for temporal and space-pulse separation of pulses ;; signals, containing in each channel trigger and logical elements I.

And the closest technical solution to the invented; I is a code signal distributor containing a logic element AND, a pulse driver, a trigger, a threshold device, a shift register, controllable output keys and a delay element, the device input being connected to the first element input And, the output of which through the pulse driver is connected to a single trigger input, the outputs of the shift register are connected to the control inputs of the corresponding output key switches, the output of the last digit of the shift register through the elec The delay element is connected to the zero input of the trigger and set-up - :: 1st input of the shift register.

arriving sequentially at intervals specified by the control generator of the onboard system, an error arises from inevitable phase shifts between the control generator of the onboard system generator and the distributor. which can compassionate; with a large number of codewords noskol'ko senior: x or low bits of the code word, i.e., even lead to a complete loss of information. To reduce the loss of information, it is very necessary to carefully manufacture and adjust the known devices using special schemes for automatic frequency control, which ensures high frequency stability of the controlled oscillator, which is part of the distribution system. However, these measures impair the manufacturability of the device as a whole.

The aim of the invention is to improve the operating characteristics of the device, resulting in increased distribution accuracy; Code message messages and improving the processability of the code eig distributor: - .alov.

This is achieved by the fact that the device contains a low-pass filter, the second threshold: the device and the input key. The input of devices is connected through a series-connected filter of frequency and frequency and a second threshold device is connected to the second input of the AND element, as well as through an input key - to the ICM of the controlled output keys and to:; the course of the first threshold device. The trigger output is connected to a key control input.

FIG. i is a diagram of a distributor of coding signals, FIG. 2 - its time diagrams.

The code signal distributor contains a filter / low pass, a second threshold device 2, a logical element I 3, a pulse driver 4, a trigger 5, input klk / h 6, a first threshold device 7, a shift register 8, n controllable output keys 9 and a delay element W.

Device Units for the distribution of 1 input of 11 signals containing a receiver;:;:;;; 1; 1; R. with a duration of TRS and n code words with a duration of TC of tpc each, appearing from the output of an onboard analog-to-digital converter after the I1M transformations of the output signals of each of the ka;: alov objects, successively ;; o rocket; one by one. connection. Between the Repere sending the message of R. .. and the first code spruce, as well as between the next; The code words have a pause length of m. In turn, each code word consists of the rendered signal of the code Rk, as well as pulses corresponding to the discharge of the coded number and pauses between the multiplier | And, and the pulse located at the appropriate place after the impulse RC and zero is the absence of such an impulse. The amplitude of the HIM pulse Yak exceeds the amplitudes of the discharge pulses, and the duration of this pulse is equal to the duration of the latter.

The filter / low pass, the second threshold device 2, the LOT element 3, the pulse former 4 are designed to provide a reference signal for the message. The low-pass filter filters the code word impulses, passes only the repeating signal of message P. The parameters of this filter are chosen so that during the operation of the code word pulse the output voltage of the filter does not have time to change significantly and, on the contrary, when the pulse gets blunt El to the threshold value and „2 in time. In this case, in the case of the arrival of code word pulses, the output voltage of the filter / low frequencies decreases during the pause between these pulses. The threshold for triggering and / 12 threshold device 2 is selected above the maximum voltage value at the output of the low-pass filter during the arrival of the code word pulses, and below the amplitude of the message reference signal. The release threshold of the second threshold device 2 Un-2 is slightly below the threshold Ui-2, which is necessary to realize the overlap of the impulse length / 2 of the trailing edge of the reference signal of the message.

Psrsg with;.: Abat:, zai ;; U ,. riepBoro of threshold device 7 is higher than the amplitude of "single code word pulses and lower than the amplitude of the IMN pulse I ,. Delay element 10

after the signal L-g- arrives at its input, the front of this signal is delayed by the time t, the period; the world of the impulse, kot; 13 | Leads the reset of all triggers of the device to the zero position, and thereby translates

device in integer to initial state.

At the first moment after switching on the device., When a signal is applied to its input, which1 does not start with a reference message, the Iass message (cf. Fig. 2), at the output of the filter 7

a low-frequency signal appears, the magnitude of which is much lower than the trigger threshold and,; - 2 of device 2, as a result of which the latter does not work. In view of this, at the outputs of the ejection P 3 and, therefore,

the driver 4 has no signal, so that the trigger 5 nro remains in the zero state and the input key 6 of the mouth of the actuator is in the open position. Thus, the input signal will not arrive at the input

first threshold device 7 and informational inputs of output keys 9.

When the same signal arrives, the pachinaunsgo with the rendered message P, P ,. for howling T9 from the beginning of the impulse P ,, output is tight

the filter / low pass rises to the trigger threshold level 6,, 2 of the second low-voltage device 2, as a result of which, the power is triggered and its output pulse, which exists until the voltage at the low pass filter output falls below the release threshold t / ia To the second input of the element I 3. Pr.-and this is to its first input the reference signal P. - As a result, the time edge of the L2 reference signal P overlaps the trailing edge of the pulse Oz at the output of the element 3 and corresponds to the trailing edge of the rendering signal R. This rear fro The NT is then forwarded by block 4 and fed to a single VMO. D trigger 5, not retiring it into a single state. As a result, the input key 6 is closed, thus preparing the device as a whole for the channel-by-channel distribution of the code words of the message. Key 6 will be locked on

the residence time of the trigger 5 in a single state. The code words that follow the Renaissance and MpulsoM Messages are sent to the information inputs of the output keys of the 9 channel pairs. And the input of the threshold device 7. Taking into account what was said about the values of the threshold i7 and impulses of the code word, the threshold device 7 only works from the input. on it the reference pulse P to the code word, and its output im.pulse is the first one. g repistra shift 8 in one state. As a result, the key 9 of the first channel is closed, and at the first exit of the device, according to the hardware of the first CODO. OF YOUR word. With the arrival of the I1pulc Pc, the second unit is from the first bit of the shift register to the second, in view of which the second codeword impulses are sent to the device, etc. In order to prepare the device as a whole for the distribution of the new message, the output sitn The th bit of the shift register 8 is fed to the delay element 10, which in this case delays the leading edge of the pulse Us-n by the time t to. The UL impulse generated at the output of the delay element resets all triggers of the device to the zero state.

For this device, the instability of the duration of 1: the code words of the input. In general: H1II and the pauses between them are not affected by the accuracy of the operation of the device as a whole. This is due to the fact that after locating the control signal a message is received with the help of a low-pass filter 1, the second threshold device 2, the logic element I 3, and the pulse driver 4, i.e. after the device is ready to work, the reference signals P that set the cycle of the shift register 5, sequentially recognized in time using the threshold device 7. After recognition, each output key of the distributor will be open for a period of time between adjacent reference signals RK and all bits of the code word, those following the corresponding reference signal P are completely fed to the corresponding output of the device. In this connection, there is no need to use in this device a controlled pulse generator, whose operation must be rigidly synchronized with the operation of the onboard generator, and their voltages are in phase, as well as auxiliary units for such a generator, therefore, the manufacture and commissioning of the device is greatly simplified. whole Thus, the use of a filter / low pass, a second threshold device 2 and an input key 6 and the corresponding connections between them and other elements of the device significantly improves the accuracy of the distribution of code messages and improves the manufacturability of this device.

Claims (1)

Invention Formula Distributor code signals containing a logical element And, pulse shaper, trigger, the first threshold device, shift register, controlled output keys and delay element, the device input is connected to the first input of the element I, the output of which is connected to a single trigger input through the pulse driver, the outputs of the shift register are connected to the control inputs of the corresponding output keys, the output of the last bit the shift register through the delay element is connected to the zero input of the trigger and the installation input of the shift register, the output of the first threshold device is connected to the input of the first digit of the shift register, characterized in that, in order to improve performance, it contains a low-pass filter, a second threshold device and an input key, a device input through a series-connected low-pass filter and a second threshold device connected to the second input of the AND element, as well as input key — with the information inputs of the controlled output keys and with the input of the first threshold device; the trigger output is connected to the control input of the input key. .one / i No. A-j: / 1-zNgs-  d.