CN202679350U - Onboard ultrashort wave radio station simulation training device - Google Patents

Abstract

The utility model discloses an onboard ultrashort wave radio station simulation training device comprising a voltage transition regulating module, a core control module, a data storage module, an LED display module, a keyboard input module, and a wired communication module. The voltage transition regulating module and the core control module are in a unidirectional connection. The output end of the voltage transition regulating is connected with the power port of the core control module. The data port of the data storage module and the port of the core module are in a bidirectional connection. The LED display module and the core control module are in the unidirectional connection. The port of the core control module can be used to output the information to the LED display module. The keyboard input module and the core control module are in the unidirectional connection, and the keyboard input module can be used to output the information to the core control module. The port of the wired communication module and the port of the core control module are in the bidirectional connection. The onboard ultrashort wave radio station simulation training device can be used to simulate the whole operation and the display functions of the radio station realistically, and the actual operation process and the conversion function of the device provided in the utility model are consistent to that of the real radio station.

Description

An airborne ultrashort wave radio simulation training device

technical field

The utility model relates to a simulation training device, in particular to a device for simulation training of an airborne ultrashort wave radio station.

Background technique

With the continuous acceleration and innovation of military information training conditions, the traditional training mode is developing in the direction of base, simulation and network. For communication equipment, especially new digital equipment, due to the large amount of equipment in the army and the large number of users, radio operation training and maintenance have become one of the focuses of the army and colleges.

At present, the ultrashort wave radio stations equipped and used in the military have complex circuits and high costs. During the teaching and training process, if the actual equipment is used, it will affect the surrounding electromagnetic environment, especially the use of ground-to-air ultrashort wave radio stations will directly affect the communication of aircraft on the route and navigation, causing safety hazards to flight. Not only that, wrong operation may also cause damage to communication equipment, etc. Therefore, it is difficult to get a large number of ultrashort wave radio stations in teaching practice. Insufficient experimental equipment has become the main restrictive factor restricting the improvement of training effect.

Utility model content

Aiming at the complex circuit and high price of the physical radio station, if it is used for training, the training cost will be greatly increased. The technical problem solved by the utility model is to provide an airborne ultrashort wave radio station simulation training device, which uses an 8-bit single-chip microcomputer as the core control The chip, by controlling the driver chip of the display module, realizes the functions of displaying, storing, calling and error message of the actual radio station's frequency and working status, and at the same time sends information through the serial port. The radio simulation device can realistically simulate all the operation and display functions of the radio station. The device is mainly used in the operation training of radio communication and teaching demonstration in colleges and universities. The simulation device increases the training time of operators and improves the training level of operators. It provides a good training environment for operators to use the radio correctly and skillfully.

The technical scheme that the utility model solves described technical problem is:

An airborne ultrashort wave radio station simulation training device, including a voltage conversion and conditioning module, a core control module, a data storage module, an LED display module, a keyboard input module and a wired communication module; wherein, the voltage conversion and conditioning module is unidirectionally connected to the core control module , the output terminal of the voltage conversion conditioning module is connected to the power port of the core control module; the data port of the data storage module is connected bidirectionally with the port of the core module; the LED display module is connected unidirectionally with the core control module, and the port output of the core control module information to the LED display module; the keyboard input module is unidirectionally connected to the core control module, and the keyboard input module outputs information to the core control module; the port of the wired communication module is bidirectionally connected to the port of the core control module.

The voltage conversion and conditioning module uses a 220 to 5V AC-DC power supply module, the input terminal of this module is connected to 220 AC power, and the output terminal is connected to the power port of other modules.

The core control module is an 8-bit single-chip microcomputer, and the power supply pin of the single-chip microcomputer in this module is connected to the 5V output terminal of the voltage conversion conditioning module; Resistance-capacitance reset circuit; the P1.0-P1.7 pins of the single-chip microcomputer are respectively connected to the four rotary encoder pins of the keyboard input module; the P2.0-P2.4 pins of the single-chip microcomputer are respectively connected to the keyboard input module On the pins of the monotone button, switch button, squelch button, AM button, and launch button; the P2.5 pin of the single-chip microcomputer is connected to the VCC terminal of the relay of the wired communication module; the P3.2-P3 of the single-chip microcomputer .4 pins are respectively connected to CLK, LOAD, DIN of the driver chip in the LED display module; P3.5-P3.7 pins of the microcontroller are respectively connected to WP, SCK, SDA of the EEPROM chip of the data storage module.

The data storage module is a serial EEPROM chip, and three address lines of the chip are all connected to the 5V output terminal of the voltage conversion and conditioning module, and three control pins are connected to the pins of the single-chip microcomputer as described in the core control module.

The LED display module includes 14 LED indicators, 6 seven-segment digital tubes and a driver chip; the power supply pin of the driver chip is connected to the 5V output terminal of the voltage conversion conditioning module; the pin dig0 and the pin dig1 are respectively connected to The common cathode of the LED indicator light; the pins dig2-dig7 are respectively connected to the bit selection segment of the digital tube; the SEGA-SEGDP of the driver chip are respectively connected to the segment selection end of the digital tube and the positive poles of 14 LEDs; the LOAD, CLK, The DIN pin is connected to the pin of the microcontroller as described in the core control module.

The keyboard input module includes 4 rotary encoders and 5 keys, and the pin connection of each device is as described in the core control module.

The wired communication module includes a two-stage amplifying circuit and a relay. The amplifying circuit is composed of triodes, resistors, and capacitors in cascaded connection; The ground signal line of the earpiece, the normally open end of the relay is connected to the ground signal line of the microphone.

Compared with the prior art, the beneficial effect of the utility model is: the utility model can realistically simulate all the operation and display functions of the radio station, not only the appearance and structure of buttons and display are similar to the actual radio station, but also the actual operation process and call And other functions are also consistent with the real radio station. It overcomes the disadvantages of the high price of physical radio stations in training, reduces the damage of physical radio stations, increases the number of radio stations, and has realistic simulation effects, thereby increasing the training time of operators and improving the training level of operators. The correct and proficient use of the radio by the operator provides a good training environment.

Description of drawings

Fig. 1 is the design block diagram of a kind of embodiment of airborne ultrashort wave radio station simulation training device of the present invention;

Fig. 2 is the man-machine interface schematic diagram of an embodiment of the utility model airborne ultrashort wave radio simulation training device;

Fig. 3 is the wired communication module circuit diagram of an embodiment of the airborne ultrashort wave radio station simulation training device of the present invention;

Fig. 4 is the conversation establishment process flowchart of a kind of embodiment of airborne ultrashort wave station simulation training device of the present invention;

Fig. 5 is a program flow chart of an embodiment of the airborne ultrashort wave station simulation training device of the present invention.

Detailed ways

The utility model is further described below in conjunction with the embodiments and accompanying drawings, and the specific embodiments are only used to describe the utility model in detail, and do not constitute a limitation to the claims of the application.

The airborne ultrashort wave radio station simulation training device designed by the utility model (hereinafter referred to as the training device, see Figure 1-5) includes a hardware part and a software part, the design block diagram of the hardware part is shown in Figure 1, and the voltage conversion conditioning module and the core control module are carried out. One-way connection, the output terminal of the voltage conversion conditioning module is connected to the power port of the core control module; the data port of the data storage module is connected to the port of the core module in two directions; the LED display module is connected to the core control module in one direction, and the core control module The port of the keyboard outputs information to the LED display module; the keyboard input module is connected to the core control module in one direction, and the keyboard input module outputs information to the core control module; the port of the wired communication module is connected in two directions to the port of the core control module.

The voltage conversion and conditioning module of the machine training device of the utility model adopts a 220 to 5V AC-DC power supply module. The input terminal of the module is connected to 220 AC power, and the output terminal is connected to the power port of the core control module. This module realizes the conversion of 220V AC into 5V DC to provide power for other modules, ensuring stable power supply voltage, small temperature rise, high efficiency, and long-life operation.

A further feature of the training device of the present utility model is that the core control module adopts an 8-bit single-chip microcomputer (AT89C51 processor) (see accompanying drawing 2). The power supply pin of the single-chip microcomputer in this module is connected to the 5V output terminal of the voltage conversion conditioning module; the crystal oscillator pin of the single-chip microcomputer is externally connected with a crystal oscillator circuit with a frequency of 11.0592MHZ, and the reset pin of the single-chip microcomputer is externally connected with a resistance-capacitance reset circuit; the P1.0- The P1.7 pins are respectively connected to the four rotary encoder pins; the P2.0-P2.4 pins of the microcontroller are respectively connected to the monophonic button, the conversion button, the squelch button, the amplitude modulation button, and the transmission button On the pin of the button; the P2.5 pin of the single-chip microcomputer is connected to the VCC terminal of the relay; the P3.2-P3.4 pins of the single-chip microcomputer are respectively connected to the CLK, LOAD, DIN of the driver chip (MAX7219) in the LED display module; The P3.5-P3.7 pins of the microcontroller are respectively connected to the WP, SCK, and SDA of the EEPROM chip (AT24C02). Among them, the single-chip microcomputer is used to realize the core control of the whole design, the P1.0P1.7 pin is used to detect the input of the encoder; the P2.5 pin realizes the switch control of the relay; the P3.2-P3.4 pin is used for Control the display of the driver chip (MAX7219) in the display module; P3.5-P3.7 pins realize the reading and writing of the EEPROM chip (AT24C02).

A further feature of the utility model training device is that the data storage module adopts a serial EEPROM chip (AT24C02) (see accompanying drawing 2), and the three address lines of the chip are all connected to the 5V output terminal of the voltage conversion conditioning module, and the three control leads The pins are connected to the pins of the microcontroller as described in the core control module. After starting up, the single-chip microcomputer configures the parameters of the radio station by reading the data stored in the EEPROM chip, and displays the corresponding data through the digital tube. Before shutting down, the single-chip microcomputer writes the corresponding radio station parameters into the EEPROM chip for storage. Use for the second boot.

A further feature of the training device of the present invention is that the LED display module includes 14 LED indicator lights, 6 seven-segment digital tubes and a driver chip (MAX7219) (see accompanying drawing 2). The power supply pin of the driver chip is connected to the 5V output terminal of the voltage conversion and conditioning module, the pin dig0 and the pin dig1 are respectively connected to the common cathode of the LED indicator light, and the pins dig2-dig7 are respectively connected to the bit selection section of the digital tube; the driver chip The SEGA-SEGDP of the digital tube are respectively connected to the segment selection end of the digital tube and the positive poles of the 14 LEDs; the LOAD, CLK, and DIN pins of the driver chip are connected to the pins of the single-chip microcomputer as described in the core control module. Among them, 14 LED indicator lights respectively represent the indication functions of the radio station, such as "regular, lifesaving, voice, data transmission, secret speech, orientation, FM, AM, squelch, dual reception, channel, frequency band, details, transmission"; 6 digits and 7 The segment digital tube is used to realize the channel and frequency display of the analog radio station and other operating information; the driver chip (MAX7219) is an integrated serial input/output common-cathode display driver, including an on-chip B-type BCD encoder, multiple Road scanning circuit, segment word driver, and an 8*8 static RAM to store each data. Only one external register is used to set the segment current of each LED. By using the driver chip, the IO port resources of the single-chip microcomputer are saved, and the workload of the single-chip microcomputer itself is reduced.

A further feature of the training device of the present invention is that the keyboard input module includes 4 rotary encoders and 5 buttons (see Figure 2), and the pin connections of each device are as described in the core control module. This module is used to realize function control. Through the query of the pins of the single-chip microcomputer, it is judged whether there is a button pressed, and the corresponding button function is realized when the button is pressed.

A further feature of the training device of the present invention is that the device simulates the wireless communication function of the radio station through wired voice communication (see the accompanying drawing 3 for the module circuit diagram), and the voice signal first filters out high-order harmonics through a capacitor to eliminate high-frequency self-excited oscillation , and then the signal is sent to the earpiece through the amplification of two triodes. In the wired communication module, the grounding terminals of the handset and the microphone are controlled by a relay, the normally closed end of the relay is connected to the grounding signal line of the handset through a sliding rheostat, and the normally open end of the relay is connected to the grounding signal line of the microphone. half-duplex communication between them. The communication protocol between the two parties is as follows (see Figure 4 for the flow chart of the call establishment process): under normal circumstances, the relay control terminal of the single-chip microcomputer outputs a low level, and at this time the handset function of the wired communication module is always on, and the microphone function is off. , after the analog device is powered on, the single-chip microcomputer continuously scans the launch button for voice communication. If the launch button of one party is found to be pressed, it first sends a shielding signal to the other party's radio station. After receiving the shielding signal, the other party's radio station shields itself button function, and wait to receive the frequency information of the transmitter; then the transmitter will send the frequency and the end signal to the other station through the signal line at the moment, and the other station will receive the received frequency after receiving the end signal from the transmitter. Compare with its own frequency, if the frequencies of both parties are equal, then feed back an equal signal to the transmitter, and the transmitter will set the relay pin controlled by the single-chip microcomputer to high level after receiving this signal (the switch jumps from A to B , from C to D), at this time, the transmitter turns on the microphone function, and the voice information is transmitted to the receiver through the signal line (Signa1 line), while the receiver’s earpiece is turned on, and the received voice information is amplified by the second stage The rear drives the speaker, thereby realizing the voice communication between the two. If the frequencies of the two parties are not equal, the receiving party will feed back an unequal signal. After receiving the signal, the transmitting party will keep the original state of the earpiece unchanged, and at the same time send its own frequency to the receiving party at a certain time interval. Only then can re-match with this frequency after adjusting the frequency. When the button of the transmitter is released, the transmitter will send a disconnection signal, and at the same time set the level of the relay pin to zero (the switch jumps from B to A, and from D to C), and the receiver receives the disconnection signal After that, the self-shielding state will be released, and the launch button can be pressed. Through the above communication protocol, half-duplex communication is realized between the two parties.

The software program description of the utility model training device is as follows (referring to accompanying drawing 5):

1. Initialization: Define and initialize variables and memory.

2. Turn off interrupt: turn off the interrupt response of CPU.

3. Detect whether the factory settings are restored during the boot process, if yes, perform data initialization and recovery, otherwise enter the next state.

4. Whether to preset: Determine whether the preset button is pressed during the boot process. If it is pressed, the variable state is set to 1, and the program jumps to the preset part for execution. If the preset button is not pressed, the variable state is set to 0, the program enters normal mode execution.

5. Read the channel information before the last shutdown from the memory: If it enters the normal mode after the startup, the CPU will read the information before the last shutdown, including channel information, indicator light information, frequency information, etc.

6. Initialize MAX7219: Initialize the MAX7219 chip through the read memory information, and display the channel and frequency of the digital tube.

7. Initialize the LED indicators: initialize the indicator lights through the read memory information, and control the display of each signal light.

8. Open interrupt: open the interrupt of the CPU, prepare to receive the key response and send the serial port information.

9. Whether there is a button pressed: judge whether there is a button pressed, if there is a button pressed, it will jump to the corresponding button response program, if there is no button pressed, it will wait here for the program.

10. Key response: key response for response through key query.

11. End of response: The key response is over, and the program jumps to the key query state to wait.

The using method of the utility model training device is as follows:

1) Turn on the power to read and display information;

2) Adjust signal lights and frequency channel information;

3) The transmitter presses the transmit button to make a voice call request;

4) The receiver matches the frequency information. If the frequency is the same, the call is allowed, otherwise the frequency needs to be readjusted for matching;

5) The transmitter releases the launch button, and the voice call ends.

Through the above process, a complete radio communication process is completed.

The unmentioned part of the utility model is applicable to the prior art.

The training device of the utility model is applied in the training of the army, realizes the long-distance fixed-frequency communication between two or more points, and overcomes the disadvantage of high price of physical radio stations in training. It increases the training time of the operators, improves the training level of the operators, and provides a good training environment for the operators to use the radio correctly and proficiently.

Claims (7)

1. airborne ultra-short wave broadcasting station analog training device is characterized by and comprises voltage transitions conditioning module, kernel control module, data memory module, LED display module, keyboard input module and wire communication module; Wherein, the voltage transitions conditioning module is carried out unidirectional the connection with kernel control module, and the output of voltage transitions conditioning module is received the kernel control module power port; The FPDP of data memory module is carried out two-way being connected with the port of nucleus module; The LED display module carries out unidirectional the connection with kernel control module, and the port output information of kernel control module is to the LED display module; The keyboard input module carries out unidirectional the connection with kernel control module, and keyboard input module output information is to kernel control module; The wire communication module port carries out two-way the connection with the kernel control module port.

2. airborne ultra-short wave broadcasting station analog training device as claimed in claim 1 is characterized by the AC-DC power module that described voltage transitions conditioning module employing 220 turns 5V, input termination 220 alternating currents of this module, the power port of other modules of output termination.

3. airborne ultra-short wave broadcasting station analog training device as claimed in claim 1, it is characterized by described kernel control module is 8 single-chip microcomputers, the power pins of single-chip microcomputer is received the 5V output of voltage transitions conditioning module in this module; The external frequency of crystal oscillator pin of single-chip microcomputer is the crystal oscillating circuit of 11.0592MHZ, the external rc reset circuit of the reset pin of single-chip microcomputer; The P1.0-P1.7 pin of single-chip microcomputer is received respectively on the pin of 4 rotary encoders of keyboard input module; The P2.0-P2.4 pin of single-chip microcomputer is received respectively on the pin of single-tone keying, conversion keys, noise elimination button, amplitude modulation button, five buttons of emission button of keyboard input module; The P2.5 pin of single-chip microcomputer is received the VCC end of the relay of wire communication module; The P3.2-P3.4 pin of single-chip microcomputer is received respectively the CLK that drives chip in the LED display module, LOAD, DIN; The P3.5-P3.7 pin of single-chip microcomputer is received respectively the WP of the eeprom chip of data memory module, SCK, SDA.

4. airborne ultra-short wave broadcasting station analog training device as claimed in claim 1, it is characterized by described data memory module is the serial EEPROM chip, three address wires of this chip are all received the 5V output of voltage transitions conditioning module, control described in pin such as the kernel control module for three and receive on the pin of single-chip microcomputer.

5. airborne ultra-short wave broadcasting station analog training device as claimed in claim 1 is characterized by described LED display module and comprises 14 LED light, 6 seven segment digital tubes and drive chip; The power pins that drives chip is received the 5V output of voltage transitions conditioning module; Pin dig0 and pin dig1 receive respectively the common cathode of LED light; Pin dig2-dig7 receives respectively the position selections of charactron; The SEGA-SEGDP that drives chip receives respectively the Duan Xuanduan of charactron and the positive pole of 14 LED; Receive on the pin of single-chip microcomputer described in LOAD, CLK, DIN pin such as the kernel control module of driving chip.

6. airborne ultra-short wave broadcasting station analog training device as claimed in claim 1 is characterized by described keyboard input module and comprises 4 rotary encoders and 5 buttons, and the pin of each device connects described in kernel control module.

7. airborne ultra-short wave broadcasting station analog training device as claimed in claim 1 is characterized by described wire communication module and comprises two-stage amplifying circuit and relay, and amplifying circuit is become with resistance, capacitor stage joint group by triode; The earth terminal of receiver and microphone is controlled by relay in the wire communication module, and the normal-closed end of relay connects the ground signalling line of receiver by slide rheostat, and the Chang Kaiduan of relay connects the ground signalling line of microphone.

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