CN103513655B - A kind of control device special for automatic drive control system of air cushion ship - Google Patents

Abstract

The present invention relates to a kind of control device special for automatic drive control system of air cushion ship, single-chip microcomputer is connected with system control position calculating unit communication is driven, it is characterised in that：Control panel is provided with membrane keyboard, trace ball and 2 Independent keys, control conversion knobs, film key connects keyboard Acquisition Circuit, keyboard Acquisition Circuit is connected with microcontroller communication, trace ball and 2 Independent keys are welcomed the emperor control system control position and calculate unit, and the signal output part of control conversion knob connects single-chip microcomputer.

Description

A special control device for the automatic driving control system of a hovercraft

technical field

The invention relates to the field of marine engineering, in particular to a special control device for an automatic driving control system of a hovercraft.

Background technique

Hovercraft can be divided into small, medium and large hovercraft according to the load capacity, and can be divided into full cushion lift hovercraft and side wall hovercraft according to the sailing state. The hovercraft is a high-speed water surface vessel. Because the hull leaves the water under the action of the air cushion during navigation, the friction between the hull and the water surface is greatly reduced, so the speed of the hovercraft is much higher than that of ordinary surface vessels. , the speed of many hovercrafts can exceed 50 knots. Due to the effect of the air cushion, in addition to being able to sail on the water, the hovercraft can usually sail at high speed on a relatively smooth ground or beach. Due to these characteristics of the hovercraft, it has high maneuverability, so since the first hovercraft came out in 1959, it has been successfully used in military, commercial and rescue fields after a long period of development.

Since the late 1950s, China has started the application research of air cushion technology and the development of hovercraft. For more than 40 years, in terms of air cushion technology, through principle research, model tests, intermediate tests and trials, we have basically mastered the technology of full pad lift and side wall hovercraft, and entered the stage of development and application of practical models. The development and application of air cushion technology has adapted to the special needs of the military and civilians, and has created conditions for ships to sail in specific environments (such as shallow water rapids, dangerous shoals in the upper reaches of rivers, swampy areas, shallow beaches, coastal estuaries, and ice and snow areas) and amphibious landings.

The hovercraft automatic driving control system plays a very important role in the driving and control of the hovercraft. It is an important generator of control instructions and a necessary part of the hovercraft to complete the task and ensure safe navigation. The hovercraft integrated driving console computer group includes four reinforced computers, which are called radar computer, equipment computer, chart computer and control computer, which are used for radar signal analysis and display, environmental information and equipment information collection, chart management and display. As well as functions such as control instruction generation and control status display, among which the chart computer and the control computer share a display. There are two control modes for the entire driving console, which are manual control mode and automatic control mode.

Contents of the invention

The object of the present invention is to provide a special control device for the automatic control system of the hovercraft, which can realize the convenient and reliable control of the automatic control system of the hovercraft.

Realize the technical scheme of the object of the present invention:

A special control device for the hovercraft automatic driving control system, the single chip microcomputer is connected with the computer group of the driving control system console, and it is characterized in that: the control panel is provided with a membrane keyboard, a trackball and 2 independent buttons, a control right conversion knob, and a membrane button Connect to the keyboard acquisition circuit, the keyboard acquisition circuit is connected to the single-chip microcomputer for communication, the trackball and 2 independent buttons are connected to the console computer group of the driving control system, and the signal output terminal of the control right conversion knob is connected to the single-chip microcomputer.

An alarm circuit is also arranged on the control panel, and the alarm circuit is connected with the single chip microcomputer through communication.

The control panel is also provided with a control right conversion indicator light, and the signal output terminal of the single-chip microcomputer is connected with the control right conversion indicator light and the alarm indicator light and the buzzer in the alarm circuit through the amplifying circuit.

The control panel is also provided with a video switching button, which is connected to the signal input terminal of the video switching circuit.

The control panel is also provided with a reset button, the signal output terminal of the reset button is connected to the reset circuit, and the signal output terminal of the reset circuit is connected to the single chip microcomputer and the keyboard display management chip of the keyboard acquisition circuit.

The single-chip microcomputer adopts 80C196 single-chip microcomputer.

The single-chip microcomputer is connected with the console computer group of the driving control system through the RS-232 communication control circuit, and the RS-232 communication control circuit adopts the MAX232 chip.

The keyboard acquisition circuit adopts the keyboard display management chip 8279.

The control panel is manufactured using light guide PVC film technology, and the control panel is embedded and fixed on the console.

The membrane keyboard is 23 push-type keyboards, and is equipped with 9 LEDs indicating the working status of the system.

The beneficial effect that the present invention has:

The control panel of the present invention is provided with a membrane keyboard, a trackball, 2 independent buttons, and a control right conversion knob. The membrane button is connected to the keyboard acquisition circuit, and the keyboard acquisition circuit is connected to the single-chip computer through communication. The trackball and 2 independent buttons are connected to the driving control system for control. A computer group, the signal output terminal of the control right conversion knob is connected to a single-chip microcomputer, the present invention has a reasonable structural design and is easy to operate. The control panel of the present invention is also provided with an alarm circuit and a control right conversion indicator light, which are convenient for alarm indication and control right conversion indication. The control panel of the present invention is also provided with a video switching button, which facilitates the switching of the video signal of the console computer group of the driving control system. The control panel of the present invention is also provided with a reset button, which can realize the restart of the console computer group of the driving control system and the reset of the single-chip microcomputer and the keyboard acquisition circuit. The manufacturing of the control panel of the present invention adopts the light-guiding PVC film sticking process, and the control panel is embedded and fixed on the console. The film keyboard is 23 push-type keyboards, and the keys need to be given a certain pressure to be effectively pressed, which can effectively avoid misoperation. The single-chip microcomputer of the present invention adopts 80C196 single-chip microcomputer, and the single-chip microcomputer and the driving control system console computer group are connected through RS-232 communication control circuit communication, and the RS-232 communication control circuit adopts MAX232 chip, and the keyboard acquisition circuit adopts keyboard display management chip 8279, which can ensure the control of hovercraft Convenient and reliable operation of the automatic rack control system.

Description of drawings

Fig. 1 is the appearance schematic diagram of control panel of the present invention;

Fig. 2 is a block diagram of the electrical principle of the present invention.

detailed description

As shown in Figure 2, the control panel 15 is provided with a membrane keyboard 24, a trackball and 2 independent buttons 19, and a control switch knob. 19 is connected to the driving control system console computer group 16, the control right conversion circuit 21 includes a control right conversion knob and a control right conversion indicator light, the signal output terminal of the control right conversion knob is connected to the single-chip microcomputer 1, and the control right conversion circuit 21 is used to realize the manual control of the hovercraft. and switching controls for automatic control. Also be provided with alarm circuit 22 on the control panel 15, alarm circuit 22 is connected with single-chip communication, and alarm circuit 22 comprises alarm indicator light, buzzer, alarm mute button. The signal output end of the single-chip microcomputer is connected to the control right conversion indicator light in the control right conversion circuit 21 and the alarm indicator light and the buzzer in the alarm circuit 22 through the amplifying circuit 18. The control panel 15 is also provided with a video switching button 20 , which is connected to the signal input terminal of the video switching circuit 17 . The single-chip microcomputer 1 is communicatively connected with the driving control system console computer group 16 through the RS-232 communication control circuit 14 .

The single-chip microcomputer adopts 80C196 single-chip microcomputer, and the S-232 communication control circuit adopts MAX232 chip. The AD0~AD15 pins of 80C196 single-chip microcomputer are expanded into 16-bit address bus and 8-bit data bus through two pieces of 74LS373 chip 2 and 74LS245 chip 3; The DB0~DB7 pins of the 8279 chip are connected to the bus to realize data exchange with the 80C196 single-chip microcomputer; the A and B pins of the 74LS139 chip 9 are connected to the highest two bits of the address bus to realize address decoding, thereby realizing the 6264 chip 5 and chip selection of 8279 chip 6;

The keyboard acquisition circuit is composed of 8279 chip 6, 74LS156 chip 10, 7445 chip 11, and 7406 chip 12. The SL0-SL3 pins of 8279 chip 6 realize the column scanning of the matrix LED in the membrane keyboard 24 through the 7445 chip 11, OUTA0 and OUTA1 The pin realizes the row scanning of the matrix LED in the membrane keyboard 24 through the 7406 chip 12, and the scanning pulses of the columns and rows are all passed through the current amplification circuit 13 composed of triodes, and are added to the matrix LED of the membrane keyboard after the current is amplified; 8279 chip The SL0-SL2 pins of 6 realize the row scanning of the matrix keyboard in the membrane keyboard 24 through the 74LS156 chip 10, and the RL0-RL7 of the 8279 chip 6 realize the column scanning of the matrix keyboard of the membrane keyboard 24.

The clock signal sent by the ALE pin of the 80C196 single-chip microcomputer is divided by two 74LS72 chips by 10 to provide the clock signal for the 8279 chip 6; Interrupt operation; use the RD and WR pins of the 80C196 microcontroller to realize the read and write control of 27256 chip 4, 6264 chip 5 and 8279 chip 6.

Power supply and reset button 23 are made up of power switch and reset button, and power switch can control device and the on-off of the power supply of hovercraft automatic driving control system, can make control hovercraft automatic driving control system computer group 16 by reset circuit 7 when reset button is pressed Restart, and control 80C196 microcontroller 1 and 8279 chip 6 to reset at the same time.

As shown in Figure 1, the control panel is manufactured using light guide PVC film technology, and the control panel is embedded and fixed on the console.

The membrane keyboard is in the middle of the control panel. It adopts light-guiding PVC film technology. There are 23 push-type matrix buttons, which can only be pressed when there is a certain pressure, which can effectively avoid misoperation during hovercraft operations. " TEXT" is the corresponding logo, and 9 LEDs are used to indicate the working status of the system; the embedded installation method is fixed on the control panel with screws; the trackball and 2 independent buttons are installed in the lower right corner of the control panel, which is in line with the operating habits of the operator . Alarm indicator light, power switch, reset button, alarm button, video switching button and alarm buzzer are reasonably distributed around the control panel.

After the operator of the hovercraft presses the power switch in the power and reset button 23, the integrated driving console is powered on, and the computer in the integrated driving console computer group 16 is started. The program is read in the storage space of the control device, the PCB circuit board of the control device starts to work, the power indicator light on the control panel 15 is on, and after the computer in the computer group 15 of the integrated driving console is started, effective operation can be carried out; After the 8279 chip 6 collects a key on the membrane keyboard 24 and presses it, it sends it to the 80C196 single-chip microcomputer 1 through the terminal, and lights up the LED on the membrane keyboard 24 according to the instruction sent by the 80C196 single-chip microcomputer 1; The button or switch command is realized by timing detection, which obtains the corresponding command according to different key values, and sends the command and the state of the control device to the integrated driving control circuit 14 through the RS_232 communication control circuit 14 according to the requirements of the specified communication protocol. The hovercraft control computer in the computer group 16; the state of the alarm circuit 22 is controlled by the hovercraft control computer in the integrated driving console computer group 16. After the 80C196 single-chip microcomputer 1 receives the alarm information, it lights up the corresponding alarm indicator light and simultaneously controls the The buzzer sounds, and when the operator presses the mute button, the buzzer stops sounding. If the alarm is not cancelled, the alarm indicator light continues to flash. When there is a new alarm message, 80C196 MCU 1 controls the corresponding alarm indicator light to flash. The buzzer beeps again, and when all the alarms are cancelled, the buzzer stops beeping (if the sound is not silenced at this time), and the alarm indicator light stops flashing; when the operator presses and pops up the video switching button, the video switching The circuit 17 realizes the video switching function; after pressing the reset button in the power supply and the reset button 23, the computer restart in the control device reset and the integrated driving console computer group 16 can be realized; The power switch in the reset button 23 is turned back to the closed state, so that the integrated driving console can be powered off, and the power indicator light on the control panel 15 goes out.

Claims (6)

1. A special control device for the automatic control system of a hovercraft, in which the 80C196 single-chip microcomputer communicates with the computer group of the automatic control system. The control right switching indicator light, the thin film button are connected to the keyboard acquisition circuit, the keyboard acquisition circuit is connected with the 80C196 single-chip microcomputer for communication, and the trackball and 2 independent buttons are connected to the computer group of the automatic driving control system; the control right conversion circuit (21) includes the control right conversion knob and The control right conversion indicator light, the signal output terminal of the control right conversion knob is connected to the 80C196 single-chip microcomputer (1), and the control right conversion circuit (21) is used to realize the switching control of manual and automatic control of the hovercraft; The alarm indicator light and the buzzer in the conversion indicator light and the alarm circuit; the control panel (15) is also provided with a video switching button (20), and the video switching button is connected to the signal input terminal of the video switching circuit (17); the reset circuit (7) restart the computer group (16) of the control hovercraft automatic driving control system, and control the 80C196 single-chip microcomputer (1) and the 8279 chip (6) to reset; the AD0～AD15 pins of the 80C196 single-chip microcomputer are expanded by two 74LS373 chips and a piece of 74LS245 chip It becomes a 16-bit address bus and an 8-bit data bus. 27256 chips (4) and 6264 chips (5) are connected to the bus to realize the expansion of the storage space of the 80C196 single-chip microcomputer; the keys or switch commands collected by the 80C196 single-chip microcomputer through the general I/O port are Realized by timing detection, it obtains corresponding instructions according to different key values, and sends the instructions and the state of the control device to the automatic driving control system computer group ( The hovercraft control computer in 16); the 8279 chip realizes the data exchange with the 80C196 single-chip microcomputer, and the SL0～SL2 pins of the 8279 chip (6) realize the row scanning of the matrix keyboard in the membrane keyboard (24) through the 74LS156 chip (10); RL0-RL7 of the chip (6) realize column scanning of the matrix keyboard in the membrane keyboard (24). 2. The special control device for the hovercraft automatic driving control system according to claim 1, characterized in that: the control panel is also provided with an alarm circuit, and the alarm circuit is connected to the single-chip microcomputer by communication. 3. The special control device for the hovercraft automatic driving control system according to claim 1, characterized in that: the control panel is also provided with a reset button, the reset button signal output terminal is connected to the reset circuit, and the signal output terminal of the reset circuit is connected to the 80C196 single-chip microcomputer ( 1) and the keyboard display management 8279 chip (6) of the keyboard acquisition circuit. 4. The special control device for the hovercraft automatic driving control system according to claim 1, characterized in that: the single-chip microcomputer and the automatic driving control system computer group are connected through the RS-232 communication control circuit, and the RS-232 communication control circuit adopts the MAX232 chip. 5. The special control device for the hovercraft automatic driving control system according to claim 1, characterized in that: the control panel is manufactured using light guide PVC film technology, and the control panel is embedded and fixed on the console. 6. The special control device for the hovercraft automatic driving control system according to claim 1, characterized in that: the membrane keyboard is 23 push-type keyboards, and is equipped with 9 LEDs indicating the working status of the system.