CN104698947A - Tactical air navigation system (TACAN) control and display system - Google Patents
Tactical air navigation system (TACAN) control and display system Download PDFInfo
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- CN104698947A CN104698947A CN201510132673.7A CN201510132673A CN104698947A CN 104698947 A CN104698947 A CN 104698947A CN 201510132673 A CN201510132673 A CN 201510132673A CN 104698947 A CN104698947 A CN 104698947A
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- interface
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
- G05B19/0423—Input/output
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/20—Pc systems
- G05B2219/25—Pc structure of the system
- G05B2219/25338—Microprocessor
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- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
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- Selective Calling Equipment (AREA)
Abstract
The invention discloses a tactical air navigation system (TACAN) control and display system. The system comprises a main control part, a key control part and a display part; the main control part is connected with the key control part through an RS232 interface; the main control part comprises a power circuit, an ARM control chip LPC1788FBD144, a backlight screen control circuit, a Flash storage, a CAN BUS interface, a serial debugging circuit, an I/ O port, an internet interface, an I2C bus interface, a device serial port and a remote control interface; the display part is provided with a military LCD backlight screen. After the system is searched successfully, the production cost is reduced to be 1/3 of the original cost; the function is enriched; the debugging, production and maintenance are easy; the system has the characteristics of being high in interference resistance, short in response time, stable to work, reliable in performance, small in size of hardware circuits, light in weight, and easy to expand the functions.
Description
Technical field
The present invention relates to airmanship, particularly a kind of Tacan controls and display system.This system is applicable to Tacan uphole equipment control system and DME uphole equipment control system.
Background technology
Existing Tacan controls to be generally with the structure of display system: control circuit adopts DSP+FPGA framework, and PCB is six laminates, display screen and button controller employing Single-chip Controlling, two pieces of circuit board costs thousands of yuan altogether; Software is all bare machine code, Function Extension difficulty.In view of existing system design Shortcomings, cause system response time long, cost is high, job insecurity, and performance is unreliable, therefore can not meet the demand of high performance index, also there is the problem that can not realize miniaturization simultaneously.How to address this problem the problem just becoming those skilled in the art and will study and solve.
Summary of the invention
Object of the present invention is exactly for overcoming the deficiencies in the prior art, the problem such as high for existing system cost, volume is large, system response time is long, a kind of Tacan is provided to control the design proposal with display system especially, this circuit system all redesigns, to meet Tacan ground station, DME distance-measuring equipment to the demand of native system high performance index.
The present invention for achieving the above object, the technical scheme taked is: a kind of Tacan controls and display system, it is characterized in that: this system comprises main control part, button control section and display section, described main control part is connected with button control section by RS232 interface; Main control part wherein comprises power circuit, ARM control chip LPC1788FBD144, backlight screen control circuit, flash storage, CAN BUS bus interface, AccessPort circuit, I/O mouth, Ethernet interface, I
2c bus interface, equipment of serial and Remote Control Interface part; Described display section adopts military LCD backlight screen; ARM control chip LPC1788FBD144 respectively with power circuit, backlight screen control circuit, flash storage, CAN BUS bus interface, AccessPort circuit, I/O mouth, Ethernet interface, I
2c bus interface, equipment of serial are connected with Remote Control Interface part, and backlight screen control circuit connects the military LCD backlight screen of display section, and equipment of serial connects other unit by RS232 interface.
The invention has the beneficial effects as follows: after the control of this Tacan is succeeded in developing with display system, production cost is made to be reduced to original 1/3rd, function is more perfect, be easy to debugging, produce and maintenance, and have that antijamming capability is strong, the response time is short, working stability, dependable performance and the feature such as hardware circuit volume is little, lightweight, Function Extension is more prone to.
Accompanying drawing explanation
Fig. 1 is that present system connects block diagram;
Fig. 2 is present system control flow chart.
Embodiment
Below in conjunction with accompanying drawing, the invention will be further described:
As shown in Fig. 1, native system comprises main control part, button control section and display section, and main control part is connected with button control section by RS232 interface; Main control part wherein comprises power circuit, ARM control chip LPC1788FBD144, backlight screen control circuit, flash storage, CAN BUS bus interface, AccessPort circuit, I/O mouth, Ethernet interface, I
2c bus interface, equipment of serial and Remote Control Interface part; Display section adopts military LCD backlight screen; ARM control chip LPC1788FBD144 respectively with power circuit, backlight screen control circuit, flash storage, CAN BUS bus interface, AccessPort circuit, I/O mouth, Ethernet interface, I
2c bus interface, equipment of serial are connected with Remote Control Interface part, and backlight screen control circuit connects the military LCD backlight screen of display section, and equipment of serial connects other unit by RS232 interface.
The button control section of native system comprises power circuit, ARM control chip LPC1114FBD48, AccessPort circuit, expanded keyboard circuit, spare interface, LED and hummer, ARM control chip LPC1114FBD48 is connected with hummer with power circuit, AccessPort circuit, expanded keyboard circuit, spare interface, LED respectively, and expanded keyboard circuit connects keyboard.
The Remote Control Interface part of native system comprises modulator-demodular unit and serial interface switching circuit, and modulator-demodular unit and serial interface switching circuit are connected to ARM control chip LPC1788FBD144 respectively; Simultaneously modulator-demodular unit is connected to Remote client and Long-distance Control and positioning indicator respectively; Serial interface switching circuit is connected to RS422 interface.
As shown in Figure 2, native system control flow is: after system electrification, main control part is initialization phaselocked loop, EMIF, interrupt register and timer etc. first, automatically self-checking function will be carried out, namely handshake is sent to unit, unit serial ports response afterwards, waits for that user selects authority and input password, then shows relay indicating light.Now system is in ready state, by safeguarding " manually " button of control module, " manual/auto " can be carried out select, " manually " is selected when button is pressed, " automatically " is selected when upspringing, working machine can be selected to be A machine or B machine by " A machine ", " B machine " two buttons, ON/OFF transmitter can be selected by " power amplifier " button.The status information of main control software meeting automatic transmitting equipment, to display section, processes the keyboard commands of current window, the Monitoring Data that reception monitoring means is sent and the antenna index that antenna monitors is sent, and automatically can monitor the duty of complete machine.Can the parameter such as manual preset beacon, pattern, radio frequency channel, state, identification, inquiry decay, system delay, echo suppressing time, receiver sensitivity, user management, alarm, thresholding, user cipher, system time under adjustment state.Under non-maintenance state, main control part branch carries out historic state record according to Monitoring Data timing (15s) automatically, when " bypass " closes, whether automatic decision monitoring index exceeds thresholding, exceed, carry out audible and visual alarm, do alarm record simultaneously and carry out working machine blocked operation, system automatic shutdown after working machine switches twice.If enter remote state, main control unit can receive and process guidance command, then local data is sent to remote control part.
Native system adopts NXP LPC1788FBD-144 hardware platform, and PCB is doubling plate.Build embedded TN Kernel real time operating system, real-time performance is improved, and control software design is made up of application program, api interface layer, driving layer, operating system four layers.NXP LPC1788FBD-144 is the microcontroller based on ARM Cortex-M3, and there are the data-carrier store of the flash storage of 512kB, 96kB (the CPU SRAM additional 32kB peripheral hardware SRAM of 64kB), the eeprom memory of 4kB, ethernet mac, a general dma controller in inside; Periphery circuit design comprises a USB device interface, 10 equipment of serial and 1 debug serial port, 2 CAN interfaces, and CAN interface uses Free-CAN agreement, for connecting external unit; 1 100M Ethernet interface, runs uIP protocol stack, and network interface is used for communicating with host computer; The military LCD backlight screen of 8 bit data bus and keyboard interface, keyboard can customize according to the requirement of project; The flash storage of a maximum 8MB, is managed by file system, and this storer can be used for storing data and parameter; Plate carries the input of 16 way switch amounts and the output of 8 way switch amounts, can also I be passed through
2c equipment interface carries out the expansion of I/O mouth.
The main control part function of native system mainly comprises: can completion status self-inspection, the work state information obtaining each working cell from each working cell plate is gone forward side by side row operation and communications process, every monitoring parameter is obtained from monitoring means, and export each power work status information of acquisition from each power supply, carry out record to obtained every monitoring parameter to store and threshold discrimination, corresponding prompting or operation is made when exceeding thresholding, when important indicator project exceeds thresholding, send audible and visual alarm and favourable turn operation.
The button control section of native system adopts the LPC1114 FBD48 microcontroller based on ARM Cortex-M0, it is low-power consumption 32 8-digit microcontroller, maximum operation frequency 50MHz, peripheral assembly comprises: the flash storer of 2KB, the data-carrier store of 8kB, an I2C interface, a RS-485 generic asynchronous serial transceiver, two SPI interfaces with SSP characteristic, four general purpose timers, one 10 ADC and 42 GPIO pin.Key control circuit plate function mainly comprises: and between main control board, adopt serial communication mode, and complete key scanning, realize user operation requirement; By the human-computer interaction interface of close friend, correctly show the work in every parameter and status information etc. of product.
For the demand of product work bad environments, the display screen of native system adopts the military LCD backlight screen of the minimum support of army's grade-40 ° of C, application parallel port interface mode; Adopt OMRON Omron B3F series, the direct insertion 6mm*6mm switch key of four pin, this button water proof and dust proof also has firm structure against damages and Electro Magnetic Compatibility.
Native system with the addition of the function of Remote Control Interface, and system remote control interface is for completing the data communication units be connected with maintenance with telemonitoring in Tacan tactical air navigation system.Major function comprises: set up communication link in master control and between Long-distance Control and positioning indicator; Communication link is set up between master control and Remote client.System remote control interface section comprises serial interface switching circuit and one piece of modulator-demodular unit, the TTL signal of master control borad can be converted into RS422 signal and fsk signal, for meeting the demand of long-distance remote control equipment.
Native system the key technical indexes:
(1) maximum functional clock: 120MHz;
(2) maximum memory space: 2MB;
(3) I/O capability: 11 road serial ports and 24 road I/O receive and dispatch simultaneously;
(4) operating temperature range :-40 DEG C ~+85 DEG C;
(5) interface type: USB, JTAG, UART, I2C, CAN interface, Ethernet interface etc.
Claims (4)
1. Tacan controls and a display system, and it is characterized in that: this system comprises main control part, button control section and display section, described main control part is connected with button control section by RS232 interface; Main control part wherein comprises power circuit, ARM control chip LPC1788FBD144, backlight screen control circuit, flash storage, CAN BUS bus interface, AccessPort circuit, I/O mouth, Ethernet interface, I
2c bus interface, equipment of serial and Remote Control Interface part; Described display section adopts military LCD backlight screen; ARM control chip LPC1788FBD144 respectively with power circuit, backlight screen control circuit, flash storage, CAN BUS bus interface, AccessPort circuit, I/O mouth, Ethernet interface, I
2c bus interface, equipment of serial are connected with Remote Control Interface part, and backlight screen control circuit connects the military LCD backlight screen of display section, and equipment of serial connects other unit by RS232 interface.
2. a kind of Tacan according to claim 1 controls and display system, it is characterized in that: described button control section comprises power circuit, ARM control chip LPC1114FBD48, AccessPort circuit, expanded keyboard circuit, spare interface, LED and hummer, ARM control chip LPC1114FBD48 is connected with hummer with power circuit, AccessPort circuit, expanded keyboard circuit, spare interface, LED respectively, and expanded keyboard circuit connects keyboard.
3. a kind of Tacan according to claim 1 controls and display system, it is characterized in that: described Remote Control Interface part comprises modulator-demodular unit and serial interface switching circuit, modulator-demodular unit and serial interface switching circuit are connected to ARM control chip LPC1788FBD144 respectively; Simultaneously modulator-demodular unit is connected to Remote client and Long-distance Control and positioning indicator respectively; Serial interface switching circuit is connected to RS422 interface.
4. a kind of Tacan according to claim 1 controls and display system, it is characterized in that: institute
The control flow stating system is: after system electrification, and main control part, first after initialization, carries out self-inspection state automatically, namely handshake is sent to unit, unit serial ports response afterwards, waits for that user selects authority and input password, then shows relay indicating light; If now system is in ready state, the status information of main control part automatic transmitting equipment is to display section, the keyboard commands of process current window, the Monitoring Data that reception monitoring means is sent and the antenna index that antenna monitors is sent, and automatically monitor the duty of complete machine; Manual preset beacon, pattern, radio frequency channel, state, identification, inquiry decay, system delay, echo suppressing time, receiver sensitivity, user management, alarm, thresholding, user cipher and system time parameter under adjustment state; Under non-maintenance state, main control part carries out historic state record according to Monitoring Data timing automatically, when " bypass " closes, whether automatic decision monitoring index exceeds thresholding, exceed, carry out audible and visual alarm, do alarm record simultaneously and carry out working machine blocked operation, system automatic shutdown after working machine switches twice; If enter remote state, main control part branch receives and processes guidance command, then local data is sent to Remote Control Interface part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510132673.7A CN104698947A (en) | 2015-03-25 | 2015-03-25 | Tactical air navigation system (TACAN) control and display system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510132673.7A CN104698947A (en) | 2015-03-25 | 2015-03-25 | Tactical air navigation system (TACAN) control and display system |
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| CN104698947A true CN104698947A (en) | 2015-06-10 |
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| CN201510132673.7A Pending CN104698947A (en) | 2015-03-25 | 2015-03-25 | Tactical air navigation system (TACAN) control and display system |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106406185A (en) * | 2016-11-23 | 2017-02-15 | 天津七六四通信导航技术有限公司 | Main control circuit of microwave landing equipment and control method thereof |
| CN106647495A (en) * | 2016-12-23 | 2017-05-10 | 天津七六四通信导航技术有限公司 | Ultra-high-frequency range finder control system and realization method thereof |
| CN106886018A (en) * | 2015-12-15 | 2017-06-23 | 西安富成防务科技有限公司 | A kind of TACAN monitoring devices |
| CN110109405A (en) * | 2018-12-10 | 2019-08-09 | 天津七六四通信导航技术有限公司 | A kind of control system and implementation method of Tacan navigation equipment |
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| Publication number | Priority date | Publication date | Assignee | Title |
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