SU809293A1 - Information receiving and transmitting apparatus - Google Patents

Description

1The invention relates to information technology, in particular, to the system and the transfer of information, and can be used in the construction of information management systems, automated process control systems and computing systems. A device for receiving signals containing a clock pulse generator, a shift register connected to a decoder, AND, OR elements, triggers from is known. Closest to the present invention is a device for transmitting and receiving information containing a linear unit connected to a receiver, one output of the linear unit is connected to the first input of the forming unit, the other to the first inputs of the shift register and the code control unit, the output of the shift register are connected to the corresponding inputs of the control unit, the buffer memory block, the outputs of the control block are connected to the corresponding inputs of the channel distributor, shift register, control block of the code of the buffer memory block, linear block, phasing lock, address decoder and receiver control unit; output of the phasing unit is connected to the input of the clock movement unit, the output of which is connected to the corresponding inputs of the phasing unit, the linear unit and the control unit; the outputs of the control unit code and the kangshov distributor breaking up addresses, the output of which is connected to the input of information playback units. 2.3. Known devices have high accuracy, but insufficient speed. The purpose of the invention is to increase the speed of the device for receiving and transmitting information. This goal is achieved by the fact that the device for receiving and transmitting information, containing an input line unit, whose input is connected to a communication line, and the first output - to the first input of the shift register, an address decoder, whose output is connected to the nepBfliM input of the resolution unit issuing and receiving, a clock pulse generator, the output of which is connected to the first input of the control unit, a coding block, an output line block, a parity selection block, a parity block, a sign extraction block, the beginning of an address, a Koe tag extraction block, are entered q address or information block selection feature Readiness element And trigger, the second output of the input line unit is connected to the first input of the parity selection block Parity and the second input of the shift register, the first output of which is connected to the first inputs of the address decoder and the trigger, the second inputs of the output permitting and receiving unit, the parity issuing unit and the control unit, the second output of the shift register is connected to the second input of the address decoder and to the information output device, the third output of the shift register through the tag selection unit The end of the address or information is connected to the third input of the output and reception permission unit and the first input of the first element AND whose output is connected to the third input of the address decoder and the second trigger input outputs of the trigger are connected respectively to the fourth input of the block permitting the output and reception and the first input of the second element I, the second input of which is combined with the third input of the control unit and connected to the output of the address decoder, the output of the allocation unit n iznaka Ready is connected to the fifth input of the output and reception resolution block, the first output of which is connected to the input of the allocation unit of the readiness sign, the first input of the third element And and the fourth input of the control unit whose output is connected to the first input of the coding block, the second input of the coding block with the information input of the device, and the output through the output linear block with a line of communication the first output of the allocation unit, the Parity attribute is connected to the third input of the coding block, the third output is connected to the first input of the fourth And, the second input of the first element And the second input of the third element, whose output is connected to the fourth input of the coding unit and the fifth input of the control unit, the output of the second element And is connected to the input of the clock generator, the receiver is connected to the second input of the fourth element I. In FIG. 1 shows the functional scheme of the proposed device; in fig. 2 - structure of signals. FIG. 1, links 1, input line unit 2, output line unit 3, block 4 of coding, block 5 of feature parity, block 6, block 7 of mark when. sign Start of address, block 8 of feature selection End of address or information, elements 9-12, shift register 13, trigger 14, address decoder 15, control block 16, clock generator 17, issue and reception resolution block 18, information input 19 devices, information output 20 of the device, input 21. Impulse Ready for output, input 22 of the bit setting. The proposed device for receiving and transmitting information is installed at controlled points, each of which has its own address and is connected to a communication line with a control point. The device works as follows. The signal from communication line 1 to the input of block 2 (the waveform of the communication line is shown in Figure 2a). The first output of the block 2 is connected with the information input of the register 13, and the second output is connected with the input of the shift pulses of the register 13. For the 13, each positive impulse in the communication line is encoded logical 1, and each negative is encoded O. Signal Start of address (ON ) from the output of block 7 in each cycle prepares the device for operation, block 8 serves to extract the signals End of Address (CL) and End of Information (CI). In addition, since each bit of information is encoded by two pulses (1 is encoded by a combination of pulses - +, and O - + -), block 5 is necessary to extract the meaning of each bit of the word. The signal from link 1 is sensed by block 2, where it is encoded : negative pulses are transmitted to the first output by code O, and positive ones - by code 1. This information is entered into register 13 by clock pulses from the second output of block 6. After receiving the address, the decoder 15 is triggered if the received address matches the address of the controlled item. With the arrival of the signal KA, taken from the output of block 8, and the following parity strobe at the second output of block 5, the signal from the output of elements 9 is applied, the decisive potential to the third input of the decoder 15, the signal from the output of which turns on block 18. If By this time in block 6 the readiness for transmission was fixed (by the readiness impulse applied to input 21), then a second permitting potential for block 18 was prepared at its output. In this case, block 18 is triggered by issuing at the first output a permitting signal for block 16, cat After this, roYoB to receive pulses of the generator 17. The rear. The front of the parity gate passing through the AND 9 element is set to 1 trigger 14 j, after which the AND 10 element is triggered, including the generator 17.

The pulses, output through block 16, are fed to the input of block 4, which stores information for transmission to the communication line, which is entered into block 4 by input 19, the third input of block 4 receives a signal of parity and the first is sync pulses .

In block 4, information is encoded for block 3, from the output of which a bipolar signal is sent to communication line 1, corresponding to the code of the transmitted number. After transmitting the last digit of the number, the resolving potential is removed from the output of block 16, after which block 4 generates a code for the signal of the CI entering the communication line through the output line block 3. This code is perceived by the input line block 2, passes through the register 13 and forms block 8, the signal of the CI feature, at the first output of block 8, a preparation signal of block 6 is formed. With the arrival of the sign, the CI is reset to O via AND 9, trigger 14, closing AND 10, and the generator 17 stops. The width of the transmitted numbers is entered in block 16 at input 22, and the number itself in block 4 at input 19.

If in block 6 the readiness for transmission is not fixed, then the permissive potential does not occur at the first output of block 18 for block 16, and the latter generates a signal at the output, according to which block 4 generates a CI code. This code forms in the communication a signal KI, resetting the trigger 14, after which the generator 17 stops (Fig. 2, b).

The zero output of the trigger 14 is connected to the corresponding input of the unit 18 to prevent the preparation of the unit 6 at the first output of the unit 18 when the Ready signal appears at the output of the unit 6 between the signals of the spacecraft and the spacecraft. In this period of time, trigger 14 is in state 1 and the first output of block 18 is blocked.

To receive information from the line. communication unit 15 is configured to the appropriate address, and permission to receive is generated at the second output of block 18, opening element 12 for passing to its output the clock pulses accompanying the serial code of the received number removed from the output.

The addressing time in the proposed device is not constant and depends on the probability of the readiness of subscribers (controlled points) asked from the control point in the priority sequence. If this sequence is calculated a priori, based on the actual information content of subscribers, which is kept constant, or if there is a possibility of external synchronization of subscribers, then the average length of this sequence is close to one address. Therefore, the proposed device has a significantly higher speed in comparison with the known devices, in which in order to establish the priority subscriber, a survey and readiness analysis of all subscribers is performed.

 the invention

Device for receiving and transmitting

information containing the input line unit, the input of which is connected to the communication line, and the first output - to the first input of the shift register, the address decoder, the output of which is connected

with the first input of the output and reception resolution unit, a clock pulse generator, the output of which is connected to the first input of the control unit, characterized in that

to increase speed

devices, a coding block, an output line block, a feature extraction block Parity, a feature selection block are entered Start of a gap, a feature selection block End of an address or information, a block of a readiness Readiness, AND elements and a trigger, the second output of the input line block is connected to the first input block of feature

The parity and the second input of the shift register, the first output of which is connected to the first inputs of the decoder and address a and the trigger, the second inputs of the output resolution and reception block, the characteristic output block Parity and the control unit, through the selection of the feature Start address, the second output of the shift register is connected to the second input address decoder and with information

the input of the device, the third output of the register-shift through the characteristic selection block. The end of the address or information is connected to the third input of the output and reception resolution block and the first

the input of the first element And, the output of which is connected to the third input of the decoder General and the second input of the trigger, the outputs of the trigger are connected respectively to the fourth input

the output and reception block 4 and the first input of the second element I, the second input of which is combined with the third input of the control unit and connected to the output of the general decoder, the output of the indication block

roTOBjibcTb is connected to the fifth input of the issuing and receiving permission unit, the first output of which is connected to the input of the allocation unit of the Ready sign, the first input of the third

element and the fourth input block

control, the output of which is connected to the first input of the coding unit, the second coding input is connected to the information input of the device, and the output is connected via the output line unit to the communication line, the first output of the feature selection block 5 is Parity connected to the third input of the coding unit, the second output is the first input of the fourth element And and the second input of the first element And, and BTopftiM the input of the third element And, the output of which is connected to the fourth input of the coding unit and the fifth input of the control unit, the output of the second element And is connected to On the input of the clock pulse generator, the output of the output permitting and receiving unit is connected to the second input of the fourth element I.

Sources of information taken into account in the examination

1. Authors certificate of the USSR 559261, cl. G 08 C 19/28, 1976.

2.Tutevich V.N. Telemechanics, M., Energie, 1973, p. 359, fig. 16-8 (prototype).

put.i. CNIO INFORMATION

Claims (1)

Claim A device for receiving and transmitting information containing an input linear block, the input of which is connected to the communication line, and the first output is with the first input of the shift register, an address decoder, the output of which is connected to the first input of the permit and receive permission block, is a clock pulse generator, the output of which connected to the first input of the control unit, characterized in that, in order to improve the performance of the device, a coding unit, an output linear unit, a feature allocation unit Parity, a feature extraction unit are entered into it a, block for selecting a sign The end of an address or information, block for selecting a sign Ready, elements And and a trigger, the second output of the input line block is connected to the first input of the block for selecting the sign Parity and the second input of the shift register, the first output of which is through the block for selecting the sign the first inputs of the address decoder and the trigger, the second inputs of the issuing and receiving permission block, the sign parity block and the control unit, the second shift register output is connected to the second address decoder input and with the information input of the device, the third shift register output through the feature extraction unit The end of the address or information is connected to the third input of the issuing and receiving permission unit and the first input of the first AND element, the output of which is connected to the third input of the address decoder and the second trigger input, the trigger outputs are connected respectively, with the fourth input of the issuing and receiving permission block and the first input of the second AND element, the second input of which is combined with the third input of the control unit and connected to the output of the address decoder , the output of the input unit of the sign of the sign of Ready is connected to the fifth input of the block for authorizing the issuance and reception, the first output of which is connected to the input of the block for selecting the sign of Ready, the first input of the third AND element and the fourth input of the control unit, the output of which is connected to the first input of the coding block, the second block input the encoding is connected to the information input of the device, and the output is through the output line block with a communication line, the first output of the feature selection block Parity is connected to the third input of the encoding block, the second output od - with the first input of the fourth element And and the second input of the first element And, and the second input of the third element And, the output of which is connected to the fourth input of the coding unit and the fifth input of the control unit, the output of the second element And is connected to the input of the clock generator, the output of the resolution block issuing and receiving connected to the second input of the fourth element I.