CN201039174Y - Satellite search control circuit for satellite communication search control device - Google Patents
Satellite search control circuit for satellite communication search control device Download PDFInfo
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- CN201039174Y CN201039174Y CNU2007200349291U CN200720034929U CN201039174Y CN 201039174 Y CN201039174 Y CN 201039174Y CN U2007200349291 U CNU2007200349291 U CN U2007200349291U CN 200720034929 U CN200720034929 U CN 200720034929U CN 201039174 Y CN201039174 Y CN 201039174Y
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- gps
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Abstract
The utility model discloses a satellite finding control circuit in a satellite communication satellite finding control device, relating to a satellite communication satellite finding control device, in particular to a satellite finding unit control device with stable work and easy operation. An input terminal of an interface chip (1) in the device is connected with an external industrial control computer (8), and an output terminal of the interface chip (1) is connected with the input terminal of a main chip (2). The output terminal of the main control chip (2) is respectively connected with the input terminals of a GPS signal processing chip (3), a compass signal processing chip (5) and an electric machine control chip (7); and the output terminal of the GPS signal processing chip (3) is connected with an external GPS receiver (10) by a GPS interface chip (4); and the output terminal of the compass signal processing chip (5) is connected with an externally electric compass (11) by a compass interface chip (6); the output terminal of the electric machine control chip (7) is connected with an external satellite antenna servo mechanism (12), and the output terminal of an external operating handle (9) is connected with the main control chip (2).
Description
Technical field
The utility model relates to a kind of satellite communication satellite-searching control device, especially a kind of working stability, handled easily seek the star unit control apparatus, belong to the technical field of satellite communication satellite-searching control device design.
Background technology
At present, in the communication satellite-searching star device, all adopt 4 single-chip microcomputers respectively as the main control unit of seeking the star unit, motor control unit, gps signal collecting unit, electronic compass signal gathering unit.In each single-chip microcomputer, all use a crystal oscillator separately, make that pulse signal might be asynchronous, error or mistake appear in the whole star cell operation of seeking.
Summary of the invention
Technical problem: what the purpose of this utility model provided a kind of satellite communication satellite-searching control device seeks the star control circuit, and whole single chip circuit is adjusted, and 4 single-chip microcomputers are common to use a crystal oscillator, and impulsive synchronization is convenient to communication, and working stability is reliable.
Technical scheme: the seeking in the star control circuit of satellite communication satellite-searching control device of the present utility model, the input termination industrial computer of serial port chip, the input of the output termination main control chip of serial port chip, the output of main control chip connects the input of gps signal process chip, compass signal process chip, motor control chip respectively; The output of gps signal process chip connects the GPS receiver by the GPS serial port chip, the output of compass signal process chip connects electronic compass by the compass serial port chip, the output termination satellite antenna servomechanism of motor control chip, the output termination main control chip of control handle.
The output of serial port chip " P20OUT " connects the input " PxDP30 " of main control chip; " XTAL2, the XTAL1 " of main control chip joins with " XTAL2, XTAL1 " end of gps signal process chip, compass signal process chip, motor control chip respectively; " T1IN " end of " PxDP30 " termination GPS serial port chip of gps signal process chip, " T2IN " end of " PxDP30 " termination GPS serial port chip of compass signal process chip.
Because four MCU need insert a crystal oscillator simultaneously, the MCU of STC12C series meets the requirement of this circuit design, so adopted STC12C5410AD and a job of the common access of STC12C2052AD chip, makes four MCU simultaneously by a crystal oscillator job.
Beneficial effect: the utlity model has following advantage:
Crystal oscillator of 4 common uses of single-chip microcomputer, impulsive synchronization is convenient to communication, and working stability is reliable.
Be provided with two jumper switchs on control board, making does not need chip is taken off, and both can finish downloading, and can finish operate as normal yet.
Increase the status indicator lamp of knowing clearly in addition, be convenient to differentiate the working condition of each element.
Description of drawings
Fig. 1 is a functional block diagram of the present utility model.Wherein have: serial port chip 1, main control chip 2, gps signal process chip 3, GPS serial port chip 4, compass signal process chip 5, compass serial port chip 6, motor control chip 7, industrial computer 8, control handle 9, GPS receiver 10, electronic compass 11, satellite antenna servomechanism 12.
Fig. 2 is an electrical schematic diagram of the present utility model.
Embodiment
The star control circuit of seeking of satellite communication satellite-searching control device of the present utility model comprises serial port chip 1, main control chip 2, gps signal process chip 3, GPS serial port chip 4, compass signal process chip 5, compass serial port chip 6, motor control chip 7; Wherein, the industrial computer 8 of the input termination outside of serial port chip 1, the input of the output termination main control chip 2 of serial port chip 1, the output of main control chip 2 connects the input of gps signal process chip 3, compass signal process chip 5, motor control chip 7 respectively; The output of gps signal process chip 3 connects outside GPS receiver 10 by GPS serial port chip 4, the output of compass signal process chip 5 connects outside electronic compass 11 by compass serial port chip 6, the satellite antenna servomechanism 12 of the output termination outside of motor control chip 7, the output termination main control chip 2 of outside control handle 9.
1. process chip
Having adopted little process chip of 4 compatibilities 8051 in native system altogether, is respectively 2 STC12C5410AD and STC12C2052AD, the existing following characteristics of these chips:
Compatible 8051 instruction-level;
At a high speed, adopted advanced RISC reduced instruction structure set, many instructions have realized single clock cycle;
Operating voltage range is at 3.4V-5.5V, low power dissipation design;
Operating frequency 0-35MHz can select external crystal or inner RC oscillator for use;
Has E in the sheet
2The PROM function;
Has full duplex asynchronous serial port (UART);
But system's online programming does not need special use to weave into device, makes things convenient for system upgrade.
Wherein, the STC12C5410AD characteristics are as follows:
Has Flash program storage in the 10K sheet;
Have 512 byte ram in slice data storages;
Have 28 pins;
Has E in the 2K sheet
2PROM;
Have 8 10 accuracy A/D transducers.
The STC12C2052AD characteristics are as follows:
Has Flash program storage in the 2K sheet;
Have 256 byte ram in slice data storages;
Have 20 pins;
Has E in the lK sheet
2PROM;
Have 88 accuracy A/D transducers.
These four little process chip functions are as follows:
1.STC12C5410AD: the master control chip.
2.STC12C5410AD: motor control chip.
3.STC12C2052AD:GPS signal processing chip.
4.STC12C2052AD: handle the electronic compass signal.
2. serial control core
Serial control core MAXIM232CPE has 2 groups of ports, can be connected conversion position standard serial communication with the UART interface.
In native system, adopt 2 MAXIM232CPE chips, can connect 4 serial line interfaces altogether.Wherein a slice is connected with motor control chip with main control chip, and another sheet is connected with the electronic compass signal processing chip with the gps signal process chip.
When system's installation and maintenance, 4 serial line interfaces can download to four control chips respectively.
When system's operate as normal, 2 serial line interfaces in the operating period, one is used for receiving the GPS framing signal, communicates by letter with industrial control host for one.
3. circuit working pattern
This be logical in, four little process chip are all moved different control programs, work alone, and also use independently peripheral circuit separately, do not disturb mutually.
Four little process chip send data and order mutually by predefined data/address bus.Main control chip is by sending the work of order and other chip of Data Control.
4. data/address bus
In this bus, employing be 3 address bus and 4 data/address bus, that is to say that can there be 7 addresses in system, a bus clock cycle can 4 bit data.In the native system design, message transmission rate can reach 1Mb/ second.
In the system, two-way definition is adopted in the address bit definition, promptly will define transmit leg and recipient in the address.
5. joystick interface
8 holding wires that have of joystick are connected with the port of main control chip, wherein control mains switch for 1, and 1 is signal ground, and other 6 is the keyboard signal line, and keyboard adopts the switch matrix of 3X3.
6. motor-driven interface
In native system, defined the signaling interface of controlling two machine operation altogether, be respectively horizontal motor, pitching motor.In the native system, can not carry out the multiple electric motors control of working simultaneously, at any one time, a machine operation can only be arranged at most.
7. limit switch interface
In native system, defined 4 limit switches altogether, be divided into 2 groups, be respectively horizontal limit switch, pitching limit switch.Each limit switch limits the motion of a direction.
8. motor speed is regulated
In native system, be provided with 2 motor speed regulator potentiometers, be used for regulating normal antenna movement rotating speed respectively and seek star scanning rotating speed, in the system testing process, find to there is no need to distinguish two rotating speeds, therefore, control program has only used antenna movement speed control potentiometer.
The principle of using potentiometer to regulate motor speed is: motor control chip calculates the frequency of Electric Machine Control pulse by surveying the terminal voltage of rotating speed CONTROLLED POTENTIAL device, thereby adjusts the maximum speed of motor.
The terminal voltage of rotating speed CONTROLLED POTENTIAL device is low more, and motor speed is high more.
9. serial line interface
System has 4 serial line interfaces, and each little process chip provides by serial ports control chip MAXIM232CPE by P3.0, P3.1 port.
10. forced interruption signal
For making the main control chip work of forced interruption motor control chip at any time, system definition 2 forced signals lead-in wires, directly connect 2 ports of main control chip and motor control chip.
Because this forced interruption holding wire has taken P3.0, the P3.1 port of motor control chip connection serial port chip, therefore, is provided with 2 jumper switchs on control board, when operate as normal, this port is connected with main control chip, when downloading, is connected with serial port chip.
The output of serial port chip 1 " P20OUT " connects the input " PxDP30 " of main control chip 2; " XTAL2, the XTAL1 " of main control chip 2 joins with " XTAL2, XTAL1 " end of gps signal process chip 3, compass signal process chip 5, motor control chip 7 respectively; " T1IN " end of " PxDP30 " termination GPS serial port chip 4 of gps signal process chip 3, " T2IN " end of " PxDP30 " termination GPS serial port chip 4 of compass signal process chip 5.GPS serial port chip 4 and compass serial port chip 6 shared integrated circuits " STC12C2052AD ".
Claims (2)
- A satellite communication satellite-searching control device seek the star control circuit, it is characterized in that this device comprises serial port chip (1), main control chip (2), gps signal process chip (3), GPS serial port chip (4), compass signal process chip (5), compass serial port chip (6), motor control chip (7); Wherein, the industrial computer (8) of the input termination outside of serial port chip (1), the input of the output termination main control chip (2) of serial port chip (1), the output of main control chip (2) connect the input of gps signal process chip (3), compass signal process chip (5), motor control chip (7) respectively; The output of gps signal process chip (3) connects outside GPS receiver (10) by GPS serial port chip (4), the output of compass signal process chip (5) connects outside electronic compass (11) by compass serial port chip (6), the satellite antenna servomechanism (12) of the output termination outside of motor control chip (7), the output termination main control chip (2) of outside control handle (9).
- 2. satellite communication satellite-searching control device according to claim 1 seek the star control circuit, it is characterized in that the output " P20OUT " of serial port chip (1) connects the input " PxDP30 " of main control chip (2); " XTAL2, the XTAL1 " of main control chip (2) joins with " XTAL2, XTAL1 " end of gps signal process chip (3), compass signal process chip (5), motor control chip (7) respectively; " T1IN " end of " PxDP30 " termination GPS serial port chip (4) of gps signal process chip (3), " T2IN " end of " PxDP30 " termination GPS serial port chip (4) of compass signal process chip (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200349291U CN201039174Y (en) | 2007-02-27 | 2007-02-27 | Satellite search control circuit for satellite communication search control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200349291U CN201039174Y (en) | 2007-02-27 | 2007-02-27 | Satellite search control circuit for satellite communication search control device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201039174Y true CN201039174Y (en) | 2008-03-19 |
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ID=39211702
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200349291U Expired - Fee Related CN201039174Y (en) | 2007-02-27 | 2007-02-27 | Satellite search control circuit for satellite communication search control device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201039174Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101650570B (en) * | 2009-09-10 | 2012-05-23 | 成都六九一四科技有限公司 | Intelligent console alignment system |
| WO2013177889A1 (en) * | 2012-05-30 | 2013-12-05 | Yin Jisheng | Novel satellite finder |
-
2007
- 2007-02-27 CN CNU2007200349291U patent/CN201039174Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101650570B (en) * | 2009-09-10 | 2012-05-23 | 成都六九一四科技有限公司 | Intelligent console alignment system |
| WO2013177889A1 (en) * | 2012-05-30 | 2013-12-05 | Yin Jisheng | Novel satellite finder |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080319 Termination date: 20160227 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |