RU92276U1 - DEVICE FOR AUTOMATED TRANSMISSION OF SIGNALS OF THE MORSE CODE - Google Patents

Abstract

A device for the automated transmission of Morse code signals containing an information processing unit, the first output of which is connected to the audio signaling unit, and the second output is to the information input of the telegraph signal generator, and the information processing unit is configured to generate clock signals for controlling the audio signaling unit and issuing information signals for generating a Morse code, characterized in that an interface signal converter and a switching unit are introduced into it, and the first input-output of the interface signal converter is the input-output of the device for connecting to a personal computer, and the second input-output of the interface signal converter is connected to the first input-output of the information processing unit, the group of outputs of which is connected by a bus to the group of inputs of the control of the switching unit, the group of outputs of which is connected by a bus to the group of inputs of the control of the information processing unit; the information output of the telegraph signal generator is connected to the information input of the switching unit, the first and second power conclusions of which are connected to the corresponding power terminals of the telegraph signal generator, and the first and second inputs and outputs of the switching unit are the inputs and outputs of the device for connecting the positive and negative wires of the manipulation line, respectively ; wherein the interface signal converter is capable of converting logic level signals to CMOS level signals, as well as converting CMOS level signals to logic level signals; additional

Description

The proposed utility model relates to the field of computer technology and can be used in radio and wire communications for the automated transmission of Morse code elements.

A device for the automatic transmission of Morse code is described in German patent No. 95250085, published in 1997, which uses 101 keyboard keys, a stable voltage source, a clock circuit, a memory conversion circuit, a hexadecimal code converter, a scan circuit when generating Morse code signals hexadecimal code, asynchronous internal memory, control circuit and Morse code synthesizer from hexadecimal code. The device greatly facilitates the typing of the transmitted radiogram, but it has several disadvantages:

- low transfer rate;

- lack of ability to edit the transmitted information;

- the dependence of the transfer rate on the speed of the keyboard;

- lack of auditory control of the transmitted information.

The closest in technical essence to the proposed device is a Morse code sensor R-020 (gI2.175.002) [1], manufactured by the domestic industry, adopted as a prototype.

The functional diagram of the device of the prototype is presented in figure 1, where the following notation is introduced:

6 - input unit;

2 - information processing unit;

3 - sound alarm unit;

4 - shaper telegraph signal.

The prototype device contains a series-connected input unit (keyboard) 6, the input of which is the input of the device, and a signal processing unit 2, the first output of which is connected to the input of the sound alarm device 3, and the second to the input of the telegraph signal generator 4, the outputs of which are connected to lines of manipulation.

Figure 2 shows the composition of the information processing unit 2 of the prototype device, where the following notation is introduced:

201 - multiplexer;

202 - shaper starting processes;

203 - address block;

204 - command unit;

205 - random access memory (RAM);

206 - clock generator;

207 - code generator;

208 - block coordination and control.

The information processing unit 2 contains a multiplexer 201, the first output of which is connected to the first input of RAM 205, and the second to the first input of the driver of the starting processes 202, the output of which is connected to the inputs of the address 203 and command 204 blocks. The output of the address block 203 is connected to the second input of RAM 205 and the second, address input of the multiplexer 201; the first output of the command unit 204 is connected to the third input of RAM 205, and the second to the third input of the code generator 207; the output of the clock generator 206 is connected to the second input of the code generator 207; the output of RAM 205 is connected to the first input of the shaper 207, the first output of which is connected to the second input of the shaper 202, and the second to the input of the matching and control unit 208, the first output of which is connected to the input of the audible alarm unit 3, and the second to the input telegraph signal generator 4.

The prototype device operates as follows.

When you press the iconic buttons of the keyboard at the output of input block 6, a parallel code of the input character appears, which is fed to the first signal input of multiplexer 201. At the second output of multiplexer 201, a signal appears that puts the recording process in the shaper of starting processes 202 at the start. starting processes 202 a signal appears, which leads to the installation state of the record address 203 and command 204 blocks. The address unit 203 sequentially sets the codes of the write addresses at the address input of RAM 205 in the amount of elements of the input character code, and the command unit 204 generates a set of write commands for entering into the RAM drive 2.5 for each code element. In this case, the parallel code is converted during recording by the signals of the address block 203, which are fed to the second input of the multiplexer 201. In parallel and synchronously with the operation of the address block 203 and RAM 205, the serial character code is transmitted element-wise from the multiplexer to the information input of the RAM 205. When a new one is pressed of the next character, the recording process is repeated.

The process of reading the recorded information is as follows. In the absence of code information in the shaper 207, a read start signal is generated at its first output, which is fed to the first input of the start shaper 207 and puts the RAM reading process 205 into the start state. The address block sets the address codes in the same order and sequence in which the previously entered characters were recorded, and the command unit 204 generates a set of read commands for outputting a serial character code from the RAM drive to the information input of the code generator 207. and the second input of the code pulses received from the clock generator 206, which generates clock pulses and produces a total synchronization and control reading process and the formation of Morse code. Changing the pulse repetition period of the clock 206 changes the speed of the sensor manipulation. Shaper of starting processes 202 determines the start of recording or reading and provides temporary independence of the formation of the Morse code and input characters into the sensor via the keyboard. From the second output of the code shaper 207, the Morse code is fed to the input of the matching and control unit 208, which provides the pairing of the output of the code shaper 207 with the telegraph signal generator 4 and the sound signaling unit 3. The matching and control unit 208 also controls the tone and volume level of the auditory control signals and turning on the built-in speaker. The audible alarm unit 3 provides the operator with self-control for the formation of Morse code characters in accordance with the text of the radiogram.

The prototype device has several disadvantages:

- limiting the speed of information input;

- lack of ability to control and save the transmitted information;

- small size of the buffer storage device (16 characters);

- overwriting of information in case of exceeding the speed of inputting characters over the speed of transmission of characters in the line of manipulation;

- the need to change the connection diagram when changing the operating mode.

The proposed utility model solves the problem of creating a device for the automated transmission of Morse code characters using a computer.

The technical result achieved in this case is the absence of restrictions on the speed of information input, the ability to control and save the transmitted information, the ability to transfer information files, the absence of the need to change the circuit when changing the operating mode.

To solve the problem in a known device containing an information processing unit, the first output of which is connected to the audio signaling unit, and the second output is connected to the information input of the telegraph signal generator, and the information processing unit is capable of generating clock signals for controlling the audio signaling unit and issuing information signals for the formation of the Morse code, according to the utility model, an interface signal converter and a switching unit are introduced, the first input being The output of the interface signal converter is the input-output of the device for connecting to a personal computer, and the second input-output of the interface signal converter is connected to the first input-output of the information processing unit, the group of outputs of which is connected via bus to the group of control inputs of the switching unit, the group of outputs of which a bus is connected to a group of control inputs of the information processing unit; the information output of the telegraph signal generator is connected to the information input of the switching unit, the first and second power conclusions of which are connected to the corresponding power terminals of the telegraph signal generator, and the first and second inputs and outputs of the switching unit are the inputs and outputs of the device for connecting the positive and negative wires of the manipulation line, respectively ; at the same time, the interface signal converter is capable of converting logic level signals to CMOS level signals, as well as converting CMOS level signals to logic level signals; in addition, the information processing unit is configured to generate control signals of the operating modes of the device, as well as the ability to control the current operating mode of the device.

Figure 3 presents the functional diagram of the proposed utility model, where indicated:

1 - interface signal converter;

2 - information processing unit;

3 - block sound alarm;

4 - shaper telegraph signal;

5 - switching unit.

The proposed utility model includes a signal converter of interface 1, connected in series by bidirectional connections, the first input-output of which is an input-output of a device for exchanging information with a personal computer, and an information processing unit 2, the first output of which is connected to the audio signaling unit 3, and the second output is connected with the information input of the telegraph signal generator 4, the information output of which is connected to the information input of the switching unit 5; the group of outputs of the information processing unit 2 is connected via a bus to the group of control inputs of the switching unit 5, the group of outputs of which is connected by a bus to the group of control inputs of the information processing unit 2; the first and second power leads of the switching unit 5 are connected to the corresponding and power leads of the telegraph signal generator 4 (in Fig. 3, the corresponding circuits are “+ E feed.”, “-E feed.”), and the first and second inputs and outputs of the switching unit 5 are the inputs and outputs of the device for connecting the positive and negative wires of the manipulation line, respectively (in figure 3, the corresponding circuit "+ Manipulation Line" and "-Manipulation Line").

The proposed device operates as follows.

At the input of block 1, the codograms are received from the control personal computer via the RS-232C interface and are converted into CMOS level signals, which are then sent from block 1 to the information processing unit 2. According to the information contained in the codogram, block 2 determines the operating modes of the device and generates the corresponding control signals for switching unit 5. In accordance with the received control signal, switching unit 5 connects the corresponding supply voltage to the telegraph signal generator 4.

Also, in block 2, from the CMOS level signals, control clock signals are generated for the audible alarm unit 3. Block 3, upon receipt of a control clock sequence, gives an audible signal with a given frequency filling, which provides the operator with self-control to form Morse code characters in accordance with radiogram text.

In addition, block 2 generates informational symbols of a logical level with a given transmission rate supplied to the telegraph signal shaper 4. From the received symbols, block 4 generates an informational parcel in the form of a Morse code, matched in electrical parameters to the manipulation line, which is fed through switching block 5 to Manipulation lines for radio broadcasts.

At the same time, block 5 provides information about the selected operating mode to the information processing unit 2.

The switching unit 5, which allows you to set the operating mode of the device, can be performed, for example, based on the relay RPS46 [3]. Functional diagram of the switching unit 5 is presented in figure 5, where it is indicated:

K1.1, K2.1, K3.1 and K4.1 are the first contact groups of the first, second, third and fourth relays;

K1.2, K2.2, K3.2 and K4.2 are the second contact groups of the first, second, third and fourth relays.

The voltage "+27 V" is supplied from block 5 to the first power output of block 4 through the first group of contacts of the first relay K1.1. Voltage “minus 27 V” (indicated by “-27 V” in FIG. 5) is supplied from block 5 to the second power output of block 4 through the first group of contacts of the fourth relay K4.1. The first output of block 5 through the first group of contacts of the second relay K2.1 is connected to the information output of block 4. The second output of block 5 through the first group of contacts of the third relay K3.1 is connected to the common wire "⊥".

Block 2 can be implemented in the form of a reprogrammable controller, the functioning algorithm of which is presented in Fig.4. The controller starts with block 2.2, where the value of the Byte Receive End Flag (RXC) from block 2.1, which functions as a universal asynchronous transceiver (UART), is analyzed.

If the value of the RXC flag is not equal to 1, then on the no line the controller re-executes block 2.2, and if RXC = 1, then on the yes line the controller proceeds to block 2.4. In block 2.4, the rec variable is assigned the UDR value of the UART register, as a result of which the RXC reception end flag is reset to zero by hardware, and then block 2.6 is executed. In block 2.6, the value of the reclev reception level is analyzed, if reclev is not equal to 0, then go to block 2.12 along the no line, and if reclev = 0, then yes goes to block 2.8. In block 2.8, the variable rec is compared with the hexadecimal value OxFF, which is a sign of the beginning of the codogram. If there is a mismatch, the controller will return to block 2.2 along the “no” line, and if the received byte matches the sign of the beginning of the codogram, then the level of reception reclev is set to 1, and the controller proceeds to block 2.2.

In block 2.12, the value of the reception level of reclev is analyzed, if reclev is not equal to 1, then the controller goes to block 2.16 along the no line, and if reclev = 1, then the controller goes along the yes line to block 2.14. In block 2.14, the reception level of the reclev is assigned the value 2, the byte counter recoun is assigned the value of the received byte increased by 1, the received byte is written to the first array element of the received RX codogram, the pointer to the next array element for writing i is assigned the value 2, and the controller proceeds to execution block 2.2.

In block 2.16, the value of the reclev reception level is analyzed, if reclev is not equal to 2, then the controller on the no line goes to block 2.2, and if reclev = 2, then the controller on the yes line goes to block 2.18. In block 2.18, the received byte is written to the array element RX [i], the pointer i is incremented by 1, and the controller proceeds to block 2.19.

From block 2.18, the value of i is loaded into block 2.19, where the condition recoun = i is checked. If this condition is not met, then from block 2.19, the no line goes to block 2.2, and if it is met, then the assignment i = 0, reclev = 0, recoun = 0, and the controller proceeds to block 2.3.

In block 2.3, the condition RX [l] = 0x01 is checked. If the condition is not fulfilled, then from block 2.3 the line “no” proceeds to block 2.11, and if it is satisfied, then the line “yes” the controller proceeds to the processing of the control codogram stored in the RX array. In block 2.5, the transmission rate of the Morse code is stored in variable V. Then, in block 2.7, the controller generates commands to close (open) the corresponding relays of switching unit 5, depending on the operating mode code received in the codogram, and monitors the second group of contacts K1.2 -K4.2 relay block 5. In block 2.9, the controller issues a receipt for the settings to block 2.1 for subsequent transmission to block 1 and proceeds to block 2.2.

In block 2.11, the condition RX [1] = 0x02 is checked. If the condition is not met, then from block 2.11, the no line proceeds to block 2.2, and if it is satisfied, then the controller proceeds along the yes line to process the information codogram stored in the RX array. In block 2.13, the controller provides the characters received in the codogram, in the form of a Morse code, with speed V to the shaper of telegraph signal 4. In block 2.15, during the formation of dots (dashes), the controller generates a sound frequency clock signal to the sound alarm block 3. At the end of transmission , in block 2.17, the controller issues a receipt on the settings to block 2.1 for subsequent transmission to block 1, and proceeds to block 2.2.

The telegraph signal generator 4 can be performed, for example, on the basis of two optoelectronic transformers, the outputs of which are combined, using a diode optocoupler. One transformer produces the positive amplitude of the telegraph signal, and the other transformer produces the negative amplitude of the telegraph signal.

In unipolar mode from unit 2, the corresponding control signals are supplied to switching unit 5. As a result of the operation of the first group of contacts of the first relay K1.1, the voltage “+27 V” of the external source (see figure 5) is connected to the first power output (circuit “+ E pit.)) Of one transformer (not shown in the drawing) of unit 4. As a result of the operation of the first group of contacts of the second K2.1 and third K3.1 relay, the positive wire ("+") of the manipulation line is connected to the output of this transformer, and the negative ( "-") of the line of manipulation - to the chain "common" (in figure 3. is indicated by "⊥"). As a result of the operation of the first group of contacts of the fourth relay K4.1, the voltage "minus 27 V" of the external source is disconnected from the second power output of unit 4.

In bipolar mode from unit 2, the corresponding control signals are supplied to switching unit 5. As a result of the operation of the first group of contacts of the first relay K 1.1, the voltage “+27 V” of the external source is connected to the first power output of unit 4 (where it is supplied to the power output of one transformer) . As a result of the operation of the first group of contacts of the fourth relay K4.1, the voltage “minus 27 V” of the external source is connected to the second power output of unit 4 (circuit “-E power.” Where it goes to the power output of another transformer). As a result of the operation of the first group of contacts of the second K2.1 and third K3.1 relay, the "positive" wire of the manipulation line is connected to the information output of block 4, and the "negative" wire of the manipulation line is connected to the common wire.

In addition, in unipolar mode can be supplied to the shaper of the telegraph signal 4 through the manipulation line. Under the influence of control signals from block 2, the first group of contacts of the second K2.1 and third K3.1 relays is triggered, as a result of which the “positive” wire of the manipulation line is connected to the first power output of block 4, the “negative” wire of the manipulation line is connected to the information output unit 4. At the same time, the voltage of the external source is disconnected as a result of the opening of the first groups of relay contacts K1.1 and K4.1.

Ensuring that there is no restriction on the speed of inputting information, the ability to control and save the transmitted information, the ability to transfer information files, the absence of the need to change the circuit when changing the operating mode has become possible using the device: a microcontroller, a signal converter of the RS-232C interface to CMOS level signals and vice versa as well as a switching unit, consisting of electronic switches.

The device is implemented on the basis of industrial electronic components. The signal converter interface 1 can be implemented, for example, on a Maxim chip MAX235EPG. The information processing unit 2 can be implemented, for example, on an Atmel microcontroller ATMega128. The implementation of the telegraph signal shaper 4 according to the optoelectronic transformer circuit using a diode optocoupler is described in [2]. As a sound alarm unit 3 can be used, for example, a piezoceramic call ZP-5 [4].

Information sources:

1. Morse code sensor P-020. Technical description and instruction manual. gI2.175.002.

2. Ivanov V.I. and other semiconductor optoelectronic devices. M .: Energoatomizdat, 1988.

3. Iglovsky I.G., Vladimirov G.V. Reference for low current electrical relays. - L .: Energoatomizdat. Leningra. Department, 1990.

4. The call piezoceramic ZP-5 12.M0.082.037 TU.

Claims (1)

A device for the automated transmission of Morse code signals containing an information processing unit, the first output of which is connected to the audio signaling unit, and the second output is to the information input of the telegraph signal generator, and the information processing unit is configured to generate clock signals for controlling the audio signaling unit and issuing information signals for generating a Morse code, characterized in that an interface signal converter and a switching unit are introduced into it, and the first input-output of the interface signal converter is the input-output of the device for connecting to a personal computer, and the second input-output of the interface signal converter is connected to the first input-output of the information processing unit, the group of outputs of which is connected by a bus to the group of inputs of the control of the switching unit, the group of outputs of which is connected by a bus to the group of inputs of the control of the information processing unit; the information output of the telegraph signal generator is connected to the information input of the switching unit, the first and second power conclusions of which are connected to the corresponding power terminals of the telegraph signal generator, and the first and second inputs and outputs of the switching unit are the inputs and outputs of the device for connecting the positive and negative wires of the manipulation line, respectively ; wherein the interface signal converter is capable of converting logic level signals to CMOS level signals, as well as converting CMOS level signals to logic level signals; in addition, the information processing unit is configured to generate control signals of the operating modes of the device, as well as the ability to control the current operating mode of the device.