CN203038122U - Rotary table servo control system - Google Patents
Rotary table servo control system Download PDFInfo
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- CN203038122U CN203038122U CN 201220741472 CN201220741472U CN203038122U CN 203038122 U CN203038122 U CN 203038122U CN 201220741472 CN201220741472 CN 201220741472 CN 201220741472 U CN201220741472 U CN 201220741472U CN 203038122 U CN203038122 U CN 203038122U
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- microcontroller
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- serial communication
- rotary table
- communication interface
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Abstract
The utility model discloses a rotary table servo control system and belongs to the rotary table servo field. The system comprises a terminal display module, a button input module, a serial communication interface module and a microcontroller. The serial communication interface module comprises an RS232 module used to connect a PC machine, two RS422 modules used to connect an azimuth and pitching motor driver and two RS485 modules used to connect a signal extension. The microcontroller acquires current angle information of the rotary table through the serial communication interface module and displays through the terminal display module in real time. The button input module is used to realize switching of rotary table control modes and rotational control to the rotary table. By using the system of the utility model, the control modes are flexible and performance is stable and reliable.
Description
Technical field
The utility model relates to a kind of table servo control system, belongs to the table servo technical field.
Background technology
The table servo control system is widely used in fields such as aviation, navigation, numerical control, robot, cannon, electric motor car.Along with improving constantly of scientific and technological level, servo-drive system all plays a part very important in fields such as current social productive life and national defense construction.
The electromechanical integration technology level improve constantly and improvement of computer science provides strong condition for developing high performance servo-drive system.Characteristics such as the performance index of turntable require to have high response, speed-regulating range width, low-speed performance are good, precision height.High response refers to that the response time of turntable is very fast; Low-speed performance refers to that well turntable keeps good control performance at low frequency; Speed-regulating range width refers to power and the big characteristics of moment of topworks; The precision height refers to that the control accuracy error of system is very low, guarantees in the system index requirement.
At present the table servo system that occurs on the home market scarcely possesses the superior function that the turntable that adopts servomotor has, often show shortcomings such as response is not high, speed adjustable range is narrow, low-speed performance is poor, precision is low, and what wherein most of table servo system selected for use all is stepper motor, and performance is not ideal enough.
The utility model content
The purpose of this utility model is: propose a kind of table servo control system flexible, stable and reliable for performance of controlling.
This system comprises terminal display module, keyboard input module, serial communication interface module and microcontroller, described microcontroller connects PC, orientation and pitching motor driver and signal extension set by the serial communication interface module, the terminal display module that links to each other with microcontroller is for showing the current angle information of turntable in real time, and the keyboard input module that links to each other with microcontroller is controlled for the switching that realizes the turntable control mode with to the rotation of turntable.
Described microcontroller also is provided with the external interface of digital signal I/O, simulating signal input and motor driver control.Described serial communication interface module comprises for the RS232 module that connects PC, two RS422 modules that are used for connection orientation and pitching motor driver and two RS485 modules that are used for being connected the signal extension set; Described two RS422 modules are connected with microcontroller by the PCB connector respectively with two RS485 modules.
Technique effect:
1, has bearing accuracy height, control accuracy height, sweep velocity performance characteristics such as adjustable continuously.
2, have and preset full-automatic, manual intervention and control three kinds of control modes automatically and manually, control mode is flexible.
3, have performance characteristics such as high response, speed-regulating range width, low-speed performance are good, precision height, system performance is reliable and stable, can satisfy the needs of table servo control.
Description of drawings
Fig. 1 is structured flowchart of the present utility model.
Embodiment
Below the utility model is described in further detail.
The structure of the utility model table servo control system as shown in Figure 1, comprise terminal display module, keyboard input module, serial communication interface module and microcontroller, described microcontroller connects PC, orientation and pitching motor driver and signal extension set by the serial communication interface module, the terminal display module all links to each other with microcontroller with keyboard input module, and microcontroller also is provided with the external interface of digital signal I/O, simulating signal input and motor driver control.
Microcontroller adopts the LPC1778 chip of NXP company, and it is based on the microcontroller of ARM Cortex-M3, and operating frequency can reach 120MHz; The serial communication interface module comprises for the RS232 module that connects PC, two RS422 modules that are used for connection orientation and pitching motor driver and two RS485 modules that are used for being connected the signal extension set, two RS422 modules are connected with microcontroller by the PCB connector respectively with two RS485 modules, wherein, two RS422 modules all are to adopt the AM26C31 chip of TI company, be mainly used to realize the serial communication with motor servo driver, thereby finish the rotation control function of motor; Two RS485 modules are respectively to adopt SN65HVD3086 chip and the SN65HVD3085 chip of TI company, SN65HVD3086 is the RS485 transceiver of full duplex, SN65HVD3085 is semiduplex RS485 transceiver, and these two chips are used for carrying out serial communication with signal extension set disposable plates.
Microcontroller communicates by RS422 interface and orientation, pitching motor driver, thereby obtain the current angle information of servomotor, microcontroller is according to the information data process internal arithmetic that obtains, calculate the current angle information of turntable, and send the signal extension set to the RS485 serial communication mode, and show in real time at the terminal display module simultaneously.Keyboard input module is used for realizing the switching of turntable control mode and the hand rotation of turntable is controlled, control mode can be selected to preset automatically, one of three kinds of control modes automatically, are manually controlled in manual intervention, under manual control model, can manually operate turntable, presetting under the fully automatic mode, microcontroller obtains the order data of PC according to the RS232 interface, thereby turntable is carried out the automatic control of various rotations.
Realization of the present utility model notes following design main points:
Microcontroller communicates by mode and the motor servo driver of serial communication, thereby obtains the current angle information of motor, comprises two parts altogether, i.e. the number of turns that turns over of motor and the position in the circle.Owing to can only obtain a parameter with communicating by letter of motor driver at every turn, therefore above two parameters need just can obtain with communicating by letter of motor servo driver fully by twice, just can calculate the current angle information of turntable according to these two parameters again.It should be noted that, owing to be to obtain above two parameters respectively through twice communication, when the position numerical value in one encloses crosses the border and overflows, can cause the turntable angle-data discontinuous phenomenon to occur, so when crossing the border generation, must revise the angle-data of turntable, to guarantee the continuity of angle-data; Simultaneously when calculating the angle information of turntable, must guarantee that two parameters that are used for calculating turntable angle information obtain temporal order at microcontroller, guarantee that namely one of them parameter always has precedence over another parameter and obtains, cannot occur obtaining to occur in sequence situation about putting upside down, otherwise still can cause the turntable angle-data discontinuous phenomenon to occur.
Claims (4)
1. table servo control system, it is characterized in that: comprise terminal display module, keyboard input module, serial communication interface module and microcontroller, described microcontroller connects PC, orientation and pitching motor driver and signal extension set by the serial communication interface module, the terminal display module that links to each other with microcontroller is for showing the current angle information of turntable in real time, and the keyboard input module that links to each other with microcontroller is controlled for the switching that realizes the turntable control mode with to the rotation of turntable.
2. table servo control system according to claim 1 is characterized in that: described microcontroller also is provided with the external interface of digital signal I/O, simulating signal input and motor driver control.
3. table servo control system according to claim 1 is characterized in that: described serial communication interface module comprises for the RS232 module that connects PC, two RS422 modules that are used for connection orientation and pitching motor driver and two RS485 modules that are used for being connected the signal extension set.
4. table servo control system according to claim 3, it is characterized in that: described two RS422 modules are connected with microcontroller by the PCB connector respectively with two RS485 modules.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220741472 CN203038122U (en) | 2012-12-28 | 2012-12-28 | Rotary table servo control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220741472 CN203038122U (en) | 2012-12-28 | 2012-12-28 | Rotary table servo control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203038122U true CN203038122U (en) | 2013-07-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220741472 Expired - Lifetime CN203038122U (en) | 2012-12-28 | 2012-12-28 | Rotary table servo control system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203038122U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103076813A (en) * | 2012-12-28 | 2013-05-01 | 中船重工鹏力（南京）大气海洋信息***有限公司 | Turntable servo control system |
| CN110426678A (en) * | 2019-07-20 | 2019-11-08 | 中国船舶重工集团公司第七二四研究所 | The expansible servo-control system of two axis based on Q03UDECPU module |
-
2012
- 2012-12-28 CN CN 201220741472 patent/CN203038122U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103076813A (en) * | 2012-12-28 | 2013-05-01 | 中船重工鹏力（南京）大气海洋信息***有限公司 | Turntable servo control system |
| CN110426678A (en) * | 2019-07-20 | 2019-11-08 | 中国船舶重工集团公司第七二四研究所 | The expansible servo-control system of two axis based on Q03UDECPU module |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130703 |
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| CX01 | Expiry of patent term |