CN210072363U - Rudder control system with multiple circuit safety protection function - Google Patents
Rudder control system with multiple circuit safety protection function Download PDFInfo
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- CN210072363U CN210072363U CN201920774928.3U CN201920774928U CN210072363U CN 210072363 U CN210072363 U CN 210072363U CN 201920774928 U CN201920774928 U CN 201920774928U CN 210072363 U CN210072363 U CN 210072363U
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Abstract
A steering engine control system with a multi-circuit safety protection function comprises a Digital Signal Processor (DSP), a Field Programmable Gate Array (FPGA), a storage module, a first isolation module, a steering engine driving module, an angle detection device, a signal conditioning module, an A/D (analog/digital) conversion module, a second isolation module, a first temperature detection device, a second temperature detection device, a current detection device and a current protection module; the system has multiple protection functions of overcurrent protection, over-temperature protection, surge protection, electromagnetic interference resistance and the like, is simple in structure and comprehensive in protection, and can effectively improve the working reliability of the steering engine control system.
Description
Technical Field
The utility model belongs to the technical field of steering wheel intelligent control technique and specifically relates to a steering engine control system with multiple circuit safety protection function has been related to.
Background
The steering engine is an actuating mechanism in a missile attitude control system, and mainly has the functions of receiving a rudder control signal sent by an on-missile comprehensive control computer, calculating a deflection angle of a control plane, outputting the control signal according to a certain control rule, amplifying by a power driving circuit, outputting and driving a steering shaft to rotate, and realizing the attitude control of a missile.
The steering engine system can generate large current under the working conditions of continuous load, frequent reversing, external interference and the like, the large current impacts key components of the motor, the driver and other systems, the damage or failure of the motor, the driver and other devices can be caused, and the task fails, so that the corresponding working conditions of the current are fully considered during the design of the steering engine system, and a protection strategy is adopted. The traditional method only adopts a single current limiting protection measure, is not comprehensive in protection and cannot be suitable for complex working conditions.
SUMMERY OF THE UTILITY MODEL
In order to overcome not enough among the background art, the utility model discloses a steering wheel control system with multiple circuit safety protection function has multiple safeguard functions such as overcurrent protection, excess temperature protection, surge protection, anti-electromagnetic interference, simple structure, the good reliability.
In order to achieve the above purpose, the utility model discloses following technical scheme samples:
a steering engine control system with a multi-circuit safety protection function comprises a Digital Signal Processor (DSP), a Field Programmable Gate Array (FPGA), a storage module, a first isolation module, a steering engine driving module, an angle detection device, a signal conditioning module, an A/D (analog/digital) conversion module, a second isolation module, a first temperature detection device, a second temperature detection device, a current detection device and a current protection module; the DSP and the storage module are respectively connected with the FPGA; the FPGA is connected with the input end of the first isolation module, the output end of the first isolation module is connected with the input end of the steering engine driving module, and the output end of the steering engine driving module is connected with a steering engine; the input end of the angle detection device is connected with the steering engine, and the angle detection device is connected with the FPGA sequentially through the signal conditioning module, the A/D conversion module and the second isolation module; the input end of the first temperature detection device is connected with the steering engine, the output end of the first temperature detection device is connected with the FPGA, the input end of the second temperature detection device is connected with the steering engine driving module, and the output end of the second temperature detection device is connected with the FPGA; the input end of the current detection device is connected with the steering engine driving module, and the current detection device is connected with the FPGA through the current protection module.
Preferably, the first isolation module comprises an input end RC filtering module, a surge impact prevention module, an optical coupling isolation module and an output end RC filtering module.
Preferably, the second isolation module comprises an optical coupling isolation module and an output end RC filtering module.
Preferably, the current protection module comprises an input end RC filtering module and a voltage comparison circuit; the voltage comparison circuit is composed of a voltage comparator LM339 and peripheral circuits thereof.
Preferably, the signal conditioning module includes a signal amplification module for performing angle signal amplification and a filtering module for performing signal anti-aliasing filtering.
Preferably, the angle detection device is a hall type angle sensor installed on the steering engine main shaft.
Preferably, the first temperature detection device and the second temperature detection device are both digital temperature sensors.
Preferably, the current detection device is a hall current sensor.
Preferably, the storage module is a Static Random Access Memory (SRAM).
Due to the adoption of the technical scheme, the utility model discloses following beneficial effect has: the automatic overcurrent protection function of the steering engine is provided, so that the steering engine is prevented from being in an overcurrent running state for a long time; meanwhile, the steering engine and the steering engine driving module are subjected to temperature detection, so that the overheat protection capability of a steering engine system is improved; the input end and the output end of the main processing chip of the control system are provided with the isolation modules, so that the surge protection and anti-electromagnetic interference capability of the steering engine system are improved; the system has simple structure and comprehensive protection, and can effectively improve the working reliability of the steering engine control system.
Drawings
FIG. 1 is a schematic diagram of the steering engine control system of the present invention;
FIG. 2 is a schematic circuit diagram of a first isolation module of the steering engine control system of the present invention;
FIG. 3 is a schematic circuit diagram of a second isolation module of the steering engine control system of the present invention;
fig. 4 is a circuit schematic diagram of the current protection module of the steering engine control system of the present invention.
In the figure: 1. a digital signal processor DSP; 2. a field programmable gate array FPGA; 3. a storage module; 4. a first isolation module; 5. a steering engine driving module; 6. An angle detection device; 7. a signal conditioning module; 8. an A/D conversion module; 9. a second isolation module; 10. a first temperature detection device; 11. a second temperature detection device; 12. a current detection device; 13. and a current protection module.
Detailed Description
The present invention can be explained in detail by the following embodiments, and the object of the present invention is to protect all technical improvements within the scope of the present invention, and the present invention is not limited to the following embodiments.
As shown in fig. 1, the utility model relates to a rudder machine control system with multiple circuit safety protection function includes digital signal processor DSP1, field programmable gate array FPGA2, storage module 3, first isolation module 4, steering wheel drive module 5, angle detection device 6, signal conditioning module 7, AD conversion module 8, second isolation module 9, first temperature-detecting device 10, second temperature-detecting device 11, current detection device 12 and current protection module 13.
The FPGA2 is connected with the input end of the first isolation module 4, the output end of the first isolation module 4 is connected with the input end of the steering engine driving module 5, and the output end of the steering engine driving module 5 is connected with a steering engine; the DSP1 is mainly used for realizing related control algorithms, the FPGA2 is mainly used for logic control, and the two are combined to be used as a main processing module of a steering engine control system, so that not only can complex algorithm calculation be realized, but also the operation speed and the control flexibility are improved; the FPGA2 transmits a steering engine operation instruction sent by an upper computer to the DSP1, the DSP1 calculates the deflection angle of a control plane by combining the working parameters of the steering engine and generates a control signal, and the FPGA2 transmits the control signal to the steering engine driving module 5 through the first isolation module 4 to control the operation of the steering engine; the steering engine driving module 5 and the FPGA2 are electrically isolated by the first isolation module 4, and the influence of interference signals in the steering engine driving module 5 on the FPGA2 is avoided.
The input end of the angle detection device 6 is connected with the steering engine, and the angle detection device 6 is connected with the FPGA2 sequentially through the signal conditioning module 7, the A/D conversion module 8 and the second isolation module 9; the angle detection device 6 is a Hall angle sensor arranged on a steering engine main shaft and used for detecting steering engine angle position signals and sending the steering engine angle position signals to the signal conditioning module 7; the signal conditioning module 7 comprises a signal amplifying module and a filtering module, and is used for amplifying and filtering the received steering engine angle position signal so as to reduce the frequency domain cross aliasing of the signal; the signal conditioning module 7 transmits the amplified and filtered steering engine angle position signal to the A/D conversion module 8 for conversion from analog quantity to digital quantity; the second isolation module 9 provides digital isolation of the inputs to the FPGA 2; after receiving the steering engine angle position signal, the FPGA2 realizes closed-loop control on the steering engine.
The input end of the first temperature detection device 10 is connected with the steering engine, the output end of the first temperature detection device 10 is connected with the FPGA2, the input end of the second temperature detection device 11 is connected with the steering engine driving module 5, and the output end of the second temperature detection device 11 is connected with the FPGA 2; the first temperature detection device 10 and the second temperature detection device 11 can select a digital temperature sensor DS18B20, which is respectively used for detecting the operating temperature of the steering engine driving module 5 and the steering engine and transmitting the temperature detection information to the FPGA2, if the temperature detection information of a certain path exceeds a preset temperature threshold value, the FPGA2 sends a reset control command to the steering engine driving module 5 to stop the operation of the steering engine, thereby realizing over-temperature protection.
The input end of the current detection device 12 is connected with the steering engine driving module 5, and the current detection device 12 is connected with the FPGA2 through the current protection module 13. The current detection device 12 is a hall current sensor and is used for collecting the working current of the steering engine driving module 5 in real time, converting the detected current signal into a voltage signal, comparing the voltage signal with a reference voltage through the current protection module 13, when the voltage signal exceeds the reference voltage, sending a signal to the FPGA2 by the current protection module 13, and sending a reset control command to the steering engine driving module 5 by the FPGA2 to stop the operation of the steering engine so as to realize overcurrent protection.
The storage module 10 is a Static Random Access Memory (SRAM) and is used for storing received upper computer instruction information, steering engine driving modules 5, steering engine working temperature thresholds, steering engine control algorithm programs and other related information.
As shown in fig. 2, the first isolation module 4 includes an input end RC filtering module, a surge impact prevention module, an optical coupling isolation module, and an output end RC filtering module; the input end IN of the first isolation module 4 is connected with the output end of the FPGA2, and the output end OUT of the first isolation module 4 is connected with the input end of the steering engine driving module 5; the resistor R1 and the capacitor C1 form an input end RC filtering module which is used for inhibiting high-frequency signals at an input end and has a voltage division function; the fast recovery diode D1 forms a surge impact prevention module for inhibiting the impact of surge current caused by electrostatic discharge, thunder and lightning on the circuit; an optocoupler U1 and a resistor R3 form an optocoupler isolation module, the steering engine driving module 5 and the FPGA2 are subjected to isolation transmission, and the anti-interference performance of the system is improved; the capacitors R2 and C2 form an output end RC filtering module for filtering burrs in the output end signal.
As shown in fig. 3, the second isolation module 9 includes an optical coupling isolation module and an output end RC filtering module; the input end IN of the second isolation module 9 is connected with the output end of the A/D conversion module 8, and the output end OUT of the second isolation module 9 is connected with the input end of the FPGA 2; the resistor R4, the optocoupler U2 and the resistor R6 form an optocoupler isolation module, and input signals and the FPGA2 are isolated and transmitted, so that the anti-interference performance of the system is improved; the resistors R5 and C3 form an output end RC filtering module for filtering burrs in the output end signal.
As shown in fig. 4, the current protection module 13 includes an input terminal RC filtering module and a voltage comparison circuit; the input end IN of the current protection module 13 is connected with the output end of the current detection device 12, and the output end OUT of the current protection module 13 is connected with the input end of the FPGA 2; the resistor R7 and the capacitor C4 form an input end RC filtering module which is used for inhibiting high-frequency signals at the input end and limiting voltage; the voltage comparator U3, the slide rheostat P and the resistor R8 form a voltage comparison circuit, and the voltage comparator LM339 is selected; the sliding head end of the sliding rheostat P is connected with the equidirectional input end of the voltage comparator U3, so that reference voltages of various sizes can be flexibly generated, and the sliding rheostat P is suitable for different steering engine control systems; after the current signal detected by the current detection device 12 is converted into a voltage signal, the voltage signal is input to the inverting input terminal of the voltage comparator U3, and is compared with the reference voltage, if the voltage signal is lower than the reference voltage, the current protection module 13 outputs a high level signal to the FPGA2, otherwise, a low level signal is input.
When the steering engine control system is implemented, the DSP1 calls a control algorithm in the storage module 3 through the FPGA2 according to a steering engine operation instruction sent by an upper computer, calculates steering engine operation related data, generates a control signal, and sends the control signal to the steering engine driving module 5 through the FPGA2 so as to drive the steering engine to operate, and meanwhile, the steering engine operation related data are stored in the storage module 3 through the FPGA 2; the angle detection device 6 measures the steering engine angle position information and feeds the steering engine angle position information back to the FPGA2, the FPGA2 compares the acquired steering engine angle position information with the steering engine operation related data in the storage module 3 to judge whether angle compensation needs to be executed on the steering engine position, and closed-loop control of the steering engine is achieved.
When the steering engine control system operates, the first temperature detection device 10 and the first temperature detection device 11 detect the working temperature of the steering engine control system in real time and send the working temperature to the FPGA2, the FPGA2 compares a temperature detection value with a preset temperature threshold value, and if the temperature detection value of a certain path exceeds the preset temperature threshold value, the FPGA2 sends a reset control command to the steering engine driving module 5 to stop the operation of the steering engine.
When the steering engine control system operates, the current detection device 12 detects the working current of the steering engine control system in real time and sends a current protection signal to the FPGA2 through the current protection module 13; if the current protection module 13 sends a high-level signal to the FPGA2, the FPGA2 judges that the working current of the system is normal, and the steering engine control system continues to work; if the current protection module 13 sends a low level signal to the FPGA2, the FPGA2 determines that the system working current is abnormal, and the FPGA2 sends a reset control command to the steering engine driving module 5 to stop the operation of the steering engine.
The part of the utility model not detailed is prior art.
Claims (9)
1. The utility model provides a steering wheel control system with multiple circuit safety protection function which characterized by: the device comprises a digital signal processor DSP (1), a field programmable gate array FPGA (2), a storage module (3), a first isolation module (4), a steering engine driving module (5), an angle detection device (6), a signal conditioning module (7), an A/D conversion module (8), a second isolation module (9), a first temperature detection device (10), a second temperature detection device (11), a current detection device (12) and a current protection module (13); the DSP (1) and the storage module (3) are respectively connected with the FPGA (2); the FPGA (2) is connected with the input end of the first isolation module (4), the output end of the first isolation module (4) is connected with the input end of the steering engine driving module (5), and the output end of the steering engine driving module (5) is connected with a steering engine; the input end of the angle detection device (6) is connected with the steering engine, and the angle detection device (6) is connected with the FPGA (2) sequentially through the signal conditioning module (7), the A/D conversion module (8) and the second isolation module (9); the input end of the first temperature detection device (10) is connected with a steering engine, the output end of the first temperature detection device (10) is connected with the FPGA (2), the input end of the second temperature detection device (11) is connected with the steering engine driving module (5), and the output end of the second temperature detection device (11) is connected with the FPGA (2); the input end of the current detection device (12) is connected with the steering engine driving module (5), and the current detection device (12) is connected with the FPGA (2) through the current protection module (13).
2. The steering engine control system with the multiple-circuit safety protection function as claimed in claim 1, wherein: the first isolation module (4) comprises an input end RC filtering module, a surge impact prevention module, an optical coupling isolation module and an output end RC filtering module.
3. The steering engine control system with the multiple-circuit safety protection function as claimed in claim 1, wherein: the second isolation module (9) comprises an optical coupling isolation module and an output end RC filtering module.
4. The steering engine control system with the multiple-circuit safety protection function as claimed in claim 1, wherein: the current protection module (13) comprises an input end RC filtering module and a voltage comparison circuit; the voltage comparison circuit is composed of a voltage comparator LM339 and peripheral circuits thereof.
5. The steering engine control system with the multiple-circuit safety protection function as claimed in claim 1, wherein: the signal conditioning module (7) comprises a signal amplification module for amplifying an angle signal and a filtering module for performing anti-aliasing filtering on the signal.
6. The steering engine control system with the multiple-circuit safety protection function as claimed in claim 1, wherein: the angle detection device (6) is a Hall angle sensor arranged on a steering engine main shaft.
7. The steering engine control system with the multiple-circuit safety protection function as claimed in claim 1, wherein: the first temperature detection device (10) and the second temperature detection device (11) are both digital temperature sensors.
8. The steering engine control system with the multiple-circuit safety protection function as claimed in claim 1, wherein: the current detection device (12) is a Hall current sensor.
9. The steering engine control system with the multiple-circuit safety protection function as claimed in claim 1, wherein: the storage module (3) is a Static Random Access Memory (SRAM).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920774928.3U CN210072363U (en) | 2019-05-28 | 2019-05-28 | Rudder control system with multiple circuit safety protection function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920774928.3U CN210072363U (en) | 2019-05-28 | 2019-05-28 | Rudder control system with multiple circuit safety protection function |
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| Publication Number | Publication Date |
|---|---|
| CN210072363U true CN210072363U (en) | 2020-02-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920774928.3U Expired - Fee Related CN210072363U (en) | 2019-05-28 | 2019-05-28 | Rudder control system with multiple circuit safety protection function |
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| CN (1) | CN210072363U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112650122A (en) * | 2020-12-23 | 2021-04-13 | 武汉量宇智能科技有限公司 | Gas spoiler type servo control system and method |
-
2019
- 2019-05-28 CN CN201920774928.3U patent/CN210072363U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112650122A (en) * | 2020-12-23 | 2021-04-13 | 武汉量宇智能科技有限公司 | Gas spoiler type servo control system and method |
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Granted publication date: 20200214 Termination date: 20200528 |