CN114371648A - Core board of high-precision turntable control system - Google Patents
Core board of high-precision turntable control system Download PDFInfo
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- CN114371648A CN114371648A CN202111609750.5A CN202111609750A CN114371648A CN 114371648 A CN114371648 A CN 114371648A CN 202111609750 A CN202111609750 A CN 202111609750A CN 114371648 A CN114371648 A CN 114371648A
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- 238000006243 chemical reaction Methods 0.000 claims abstract description 33
- 230000007246 mechanism Effects 0.000 claims description 3
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- 238000012545 processing Methods 0.000 claims description 2
- 238000013461 design Methods 0.000 abstract description 10
- 238000002474 experimental method Methods 0.000 abstract description 3
- 239000003990 capacitor Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
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- 230000009286 beneficial effect Effects 0.000 description 1
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- 230000007123 defense Effects 0.000 description 1
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- 238000004146 energy storage Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
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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
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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
- G05B2219/00—Program-control systems
- G05B2219/20—Pc systems
- G05B2219/25—Pc structure of the system
- G05B2219/25257—Microcontroller
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]
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Abstract
The invention discloses a core board of a high-precision turntable control system, which comprises a power supply circuit, a master control circuit, a parameter storage circuit, an EtherCAT communication circuit, a 422 serial port communication circuit, a CAN bus communication circuit, a 485 serial port communication circuit, a 232 serial port communication circuit, an IO interface circuit, a 16-bit AD conversion circuit I and a 16-bit DA conversion circuit II. According to the invention, the distance between the circuit which is easy to be interfered and the circuit which radiates outwards is staggered when the PCB is arranged, the analog signal enters the circuit and is filtered by using the inductor, and simultaneously, an EMC experiment can be carried out after the finished product is finished, and the design is optimized after the problem is found, so that the stability and the continuity of the use of the rotary table are improved, and the universality is realized on different rotary table control systems, and the whole design efficiency of the rotary table and the debugging efficiency of debugging personnel are improved.
Description
Technical Field
The invention relates to the technical field of automatic control, in particular to a core board of a high-precision turntable control system.
Background
The high-precision rotary table is a measuring instrument used in the field of basic disciplines of engineering and technical science, and is widely applied to national defense and military industry, intelligent manufacturing, geological exploration and marine exploration in recent years. The high-precision turntable has high requirements on a control system based on self high-performance indexes, and has great requirements on the compatibility of control modes aiming at the diversification of control requirements, so that high requirements are provided for a core-control board of the control system. The control panel available in the market at present has the following defects that although the price is low, the function is single, which is reflected in that the control panel can not adapt to the requirements of different control modes of different customers; the control is convenient but the logic is simple, and some complex control instructions cannot be executed; the environmental adaptability is poor, and the main reason is that a device with narrow temperature width is selected for reducing the cost during the design; the fault rate is high in the application of the high-precision turntable control system, because the crosstalk between hardware systems and the external interference resistance of the whole control panel are not considered in the design process, and the subsequent experimental test is not carried out. Aiming at the problems in the related art, no effective solution is provided at present.
Disclosure of Invention
In view of the above technical problems in the related art, the present invention provides a high-precision core board for a turntable control system, which can overcome the above disadvantages in the prior art.
In order to achieve the technical purpose, the technical scheme of the invention is realized as follows:
the utility model provides a high accuracy revolving stage control system core plate, includes the control panel, the control panel includes power supply circuit, power supply circuit provides the required main power supply of main control chip and the used 12V auxiliary power supply of AD output circuit.
Further, the control panel comprises a main control circuit, and the main control circuit is used for receiving an external instruction, processing the external instruction and sending an execution instruction to a corresponding execution mechanism of the rotary table. The control chip selected by the main control circuit is STM32F407VET 6.
Further, the control panel comprises a parameter storage circuit, and the parameter storage circuit provides a storage space with the capacity of 2K and is used for storing temporarily modified parameter information for adapting to field control requirement bars.
Furthermore, the control board comprises an EtherCAT communication circuit which is used as an EtherCAT master station in the control board function logic and is used for carrying out EtherCAT bus communication with the outside.
Further, the control board comprises a 422 serial communication circuit, and the 422 serial communication circuit provides a full-duplex RS422 interface and is used for performing serial communication with the RS422 interface of the user controller.
Further, the control panel comprises a CAN bus communication circuit, and the CAN bus communication circuit provides a CAN interface for CAN or CANOPEN communication with the CAN interface of the user controller.
Further, the control panel comprises a 485 serial port communication circuit, and the 485 serial port communication circuit provides a half-duplex RS485 interface and is used for serial port communication with the RS485 interface of the user controller.
Further, the control board comprises a 232 serial port communication circuit, and the 232 serial port communication circuit provides an RS232 interface and is used for carrying out serial port communication with the RS232 interface of the user controller.
Furthermore, the control panel includes IO interface circuit, IO interface circuit provides 11 interfaces that directly link main control chip for peripheral hardware such as connection electron hand wheel.
Further, the control board comprises a 16-bit AD conversion circuit I and a 16-bit DA conversion circuit II, wherein the 16-bit AD conversion circuit I provides a 4-way AD conversion function and is used for receiving external analog signals, the 16-bit DA conversion circuit II provides a 3-way DA conversion function and is used for outputting various signals required by customers, and the output signals are in a differential form.
The invention has the beneficial effects that: design the mature hardware circuit schematic diagram that has used before the use and carry out the hardware design, the circuit that will easily receive the interference when overall arrangement through PCB staggers the distance with the circuit that has radiation to the outside, analog signal advances the circuit and uses inductance filtering, can carry out the EMC experiment after the finished product is accomplished simultaneously, after the discovery problem and the optimal design, and then improve the stability that the revolving stage used, the continuation has the commonality to the revolving stage control system of difference in addition, the efficiency of improvement revolving stage global design and debugging personnel's debugging efficiency.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a schematic view of a system frame of a core board of a high-precision turntable control system according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments that can be derived by one of ordinary skill in the art from the embodiments given herein are intended to be within the scope of the present invention.
As shown in fig. 1, the core board of a high-precision turntable control system according to an embodiment of the present invention includes a power circuit, a main control circuit, a parameter storage circuit, an EtherCAT communication circuit, a 422 serial communication circuit, a CAN bus communication circuit, a 485 serial communication circuit, a 232 serial communication circuit, an IO interface circuit, a first 16-bit AD conversion circuit, a second 16-bit DA conversion circuit, wherein the power circuit provides a 5V, a 3.3V main power supply used by all chips, a ± 12V auxiliary power supply used by the first 16-bit AD conversion circuit and the second 16-bit DA conversion circuit, and a 2.5V reference level, and the circuits use large-capacitance storage capacitors and small-capacitance filter capacitors to ensure power supply stability, a control chip of the main control circuit selects STM32F407VET6, LQFP-100 package, internally configures a 32-bit high-performance armaporter-M4 processor, a 168MHz clock, and a 4-way rt interface of the control chip, the device is used for butting RS422, RS232 and RS485 communication circuits; the 2-channel CAN interface is used for butt joint CAN communication, the EtherCAT communication circuit selects a DP83848 network port chip, the chip is connected with the main control chip in an RMII mode, the main control chip constructs codes in a main station mode, the 16-bit AD conversion circuit selects a D7606-4 digital-to-analog conversion chip, the 16-bit resolution ratio, the 4-channel single-end input is realized, the range of analog input voltage is +/-10V, external analog signals are converted into digital quantity to be analyzed by the main control chip, the 16-bit DA conversion circuit selects an AD5689 digital-to-analog conversion chip, the output voltage CAN be selected +/-5V or +/-10V through hardware jumpers, and the speed, current and position information CAN be displayed through the setting of an upper computer.
In a specific embodiment of the invention, the power supply circuit provides a main power supply required by the main control chip and a +/-12-volt auxiliary power supply used by the AD output circuit.
In a specific embodiment of the present invention, the main control circuit is configured to receive an external instruction, process the external instruction, and send an execution instruction to a corresponding execution mechanism of the turntable. The control chip selected by the main control circuit is STM32F407VET 6.
In an embodiment of the invention, the parameter storage circuit provides a storage space with a capacity of 2K for storing temporarily modified parameter information adapted to the field control requirement.
In a specific embodiment of the present invention, the EtherCAT communication circuit is logically used as an EtherCAT master station in the control board function, and is used for communicating with an EtherCAT bus from the outside.
In an embodiment of the present invention, the 422 serial communication circuit provides a full-duplex RS422 interface for serial communication with the RS422 interface of the user controller.
In one embodiment of the invention, the CAN bus communication circuit provides a CAN interface for CAN or CANOPEN communication with a user controller CAN interface.
In one embodiment of the invention, the CAN bus communication circuit provides a CAN interface for CAN or CANOPEN communication with a user controller CAN interface.
In an embodiment of the present invention, the 232 serial port communication circuit provides an RS232 interface for performing serial port communication with the RS232 interface of the user controller.
In a specific embodiment of the present invention, the IO interface circuit provides 11 interfaces directly connected to the main control chip, and is used for connecting peripherals such as an electronic handwheel.
In an embodiment of the present invention, the first 16-bit AD conversion circuit provides a 4-way AD conversion function for receiving external analog signals, and the second 16-bit DA conversion circuit provides a 3-way DA conversion function for outputting various types of signals required by customers, where the output signals are in a differential pair form.
In order to facilitate understanding of the above-described technical aspects of the present invention, the above-described technical aspects of the present invention will be described in detail below in terms of specific usage.
When the power supply circuit is used specifically, a 5V main power supply, a 3.3V main power supply, a 16-bit AD conversion circuit I and a +/-12V auxiliary power supply and a 2.5V reference level which are used by a 16-bit DA conversion circuit II are provided according to the power supply circuit, an energy storage capacitor with a large capacitance value and a filter capacitor with a small capacitance value are used in the circuit, the stability of power supply is ensured, a control chip of the main control circuit is packaged by STM32F407VET6 and LQFP-100, a 32-bit high-performance ARMCorter-M4 processor and a 168MHz clock are internally configured, and a 4 USART interfaces of the control chip are used for butting RS422, RS232 and RS485 communication circuits; the 2-channel CAN interface is used for butt joint CAN communication, the EtherCAT communication circuit selects a DP83848 network port chip, the chip is connected with the main control chip in an RMII mode, the main control chip constructs codes in a main station mode, the 16-bit AD conversion circuit selects a D7606-4 digital-to-analog conversion chip, the 16-bit resolution ratio, the 4-channel single-end input is realized, the range of analog input voltage is +/-10V, external analog signals are converted into digital quantity to be analyzed by the main control chip, the 16-bit DA conversion circuit selects an AD5689 digital-to-analog conversion chip, the output voltage CAN be selected +/-5V or +/-10V through hardware jumpers, and the speed, current and position information CAN be displayed through the setting of an upper computer.
In summary, by means of the technical scheme of the invention, a mature hardware circuit schematic diagram which is designed and applied before is used for hardware design, a circuit which is easy to be interfered is staggered from a circuit which has radiation to the outside by the PCB layout, an analog signal enters the circuit and uses inductive filtering, an EMC experiment can be performed after a finished product is finished, and the design is optimized after problems are found, so that the stability and the continuity of the use of the rotary table are improved, the universality is realized on different rotary table control systems, and the efficiency of the whole design of the rotary table and the debugging efficiency of debugging personnel are improved.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (10)
1. The core board of the high-precision turntable control system comprises a control board and is characterized in that the control board comprises a power supply circuit, and the power supply circuit provides a main power supply required by a main control chip and a +/-12-volt auxiliary power supply used by a 16-bit DA conversion circuit II.
2. The core board of a high-precision turntable control system according to claim 1, wherein the control board comprises a main control circuit, the main control circuit is used for receiving an external instruction, sending an execution instruction to a corresponding execution mechanism of the turntable after processing, and a control chip selected by the main control circuit is STM32F407VET 6.
3. A high accuracy turret control system core board according to claim 1, wherein the control board includes parameter storage circuitry, said parameter storage circuitry providing a 2K capacity storage space for storing temporarily modified parameter information to accommodate field control requirements.
4. The core board of a high-precision turntable control system according to claim 1, wherein the control board includes an EtherCAT communication circuit, and the EtherCAT communication circuit is logically used as an EtherCAT master station in the control board function for EtherCAT bus communication with the outside.
5. The core board of a high accuracy turntable control system of claim 1, wherein said control board includes a 422 serial communication circuit, said 422 serial communication circuit providing a full duplex RS422 interface for serial communication with a user controller RS422 interface.
6. A high accuracy turntable control system core board as claimed in claim 1 wherein said control board includes CAN bus communication circuitry providing a CAN interface for CAN or CANOPEN communication with a user controller CAN interface.
7. The core board of a high-precision turntable control system of claim 1, wherein the control board comprises a 485 serial communication circuit, the 485 serial communication circuit providing a half-duplex RS485 interface for serial communication with a user controller RS485 interface.
8. The core board of a high accuracy turret control system of claim 1, wherein the control board includes a 232 serial communication circuit, the 232 serial communication circuit providing an RS232 interface for serial communication with an RS232 interface of a user controller.
9. The core board of a high-precision turntable control system according to claim 1, wherein the control board includes an IO interface circuit, and the IO interface circuit provides 11 interfaces directly connected to the main control chip for connecting peripheral devices such as an electronic handwheel.
10. The core board of a high-precision turntable control system as claimed in claim 1, wherein said control board includes a first 16-bit AD conversion circuit and a second 16-bit DA conversion circuit, said first 16-bit AD conversion circuit provides 4-way AD conversion function for receiving external analog signals, said second 16-bit DA conversion circuit provides 3-way DA conversion function for outputting various kinds of signals required by customers, and the output signals are in differential form.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111609750.5A CN114371648A (en) | 2021-12-27 | 2021-12-27 | Core board of high-precision turntable control system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111609750.5A CN114371648A (en) | 2021-12-27 | 2021-12-27 | Core board of high-precision turntable control system |
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| CN114371648A true CN114371648A (en) | 2022-04-19 |
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| CN202111609750.5A Pending CN114371648A (en) | 2021-12-27 | 2021-12-27 | Core board of high-precision turntable control system |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206096841U (en) * | 2016-09-29 | 2017-04-12 | 九江精密测试技术研究所 | Embedded digital monitoring circuit of multiaxis real -time simulation revolving stage |
| CN109521669A (en) * | 2018-11-12 | 2019-03-26 | 中国航空工业集团公司北京航空精密机械研究所 | A kind of turning table control methods of self-tuning based on intensified learning |
| CN110657720A (en) * | 2019-10-24 | 2020-01-07 | 中国人民解放军32181部队 | Rotary table control unit for missile performance test system |
| CN111522774A (en) * | 2020-04-17 | 2020-08-11 | 贵州航天天马机电科技有限公司 | Autonomous controllable universal controller |
-
2021
- 2021-12-27 CN CN202111609750.5A patent/CN114371648A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206096841U (en) * | 2016-09-29 | 2017-04-12 | 九江精密测试技术研究所 | Embedded digital monitoring circuit of multiaxis real -time simulation revolving stage |
| CN109521669A (en) * | 2018-11-12 | 2019-03-26 | 中国航空工业集团公司北京航空精密机械研究所 | A kind of turning table control methods of self-tuning based on intensified learning |
| CN110657720A (en) * | 2019-10-24 | 2020-01-07 | 中国人民解放军32181部队 | Rotary table control unit for missile performance test system |
| CN111522774A (en) * | 2020-04-17 | 2020-08-11 | 贵州航天天马机电科技有限公司 | Autonomous controllable universal controller |
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