《電子技術(shù)應(yīng)用》
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低成本慣性多冗余導(dǎo)航控制一體機(jī)設(shè)計(jì)
電子技術(shù)應(yīng)用
牛志朝,任磊,賀韜,崔孟楠
北京航天自動(dòng)控制研究所,北京 100854
摘要: 為了智能體的精確定位和定姿,實(shí)現(xiàn)其穩(wěn)定運(yùn)動(dòng)控制,設(shè)計(jì)了一種低成本多慣性冗余導(dǎo)航控制一體機(jī),給出了設(shè)計(jì)方法。穩(wěn)壓電路的開(kāi)關(guān)電源MP2482DN和線性電源JW29300U-3.3V為一體機(jī)提供穩(wěn)定5 V和3.3 V的較大功率電源;控制器STM32H7的SPI采用星形拓?fù)淇偩€與3片六軸慣性芯片BMI088通信,2路TTL串口與差分衛(wèi)星定位板雙向通信,實(shí)現(xiàn)智能體定位和定姿;控制器STM32F4的CAN總線接口與智能體底盤(pán)雙向通信,實(shí)現(xiàn)其運(yùn)動(dòng)控制,1路TTL串口實(shí)現(xiàn)與控制器STM32H7的雙向通信;兩控制器的網(wǎng)絡(luò)接口與上位機(jī)組成無(wú)線局域網(wǎng),實(shí)現(xiàn)數(shù)據(jù)交換和狀態(tài)監(jiān)控。整個(gè)系統(tǒng)具有功耗低、體積小、成本低、接口豐富的特點(diǎn)。
中圖分類(lèi)號(hào):TP242.6 文獻(xiàn)標(biāo)志碼:A DOI: 10.16157/j.issn.0258-7998.234141
中文引用格式: 牛志朝,任磊,賀韜,等. 低成本慣性多冗余導(dǎo)航控制一體機(jī)設(shè)計(jì)[J]. 電子技術(shù)應(yīng)用,2024,50(2):102-106.
英文引用格式: Niu Zhichao,Ren Lei,He Tao,et al. Design of low-cost inertial multi-redundant navigation control integrated machine[J]. Application of Electronic Technique,2024,50(2):102-106.
Design of low-cost inertial multi-redundant navigation control integrated machine
Niu Zhichao,Ren Lei,He Tao,Cui Mengnan
Beijing Aerospace Automatic Control Institute, Beijing 100854, China
Abstract: In order to accurately locate and position the wheeled mobile robot and realize its stable motion control, a low-cost inertial multi-redundant navigation and control integrated machine is designed, and specific software and hardware design methods are given. The switching power supply MP2482DN and linear power supply JW29300U-3.3V of the voltage stabilizing circuit provide a stable 5 V and 3.3 V higher power power for the integrated machine; the SPI of the controller STM32H7 uses a star topology bus to communicate with three six-axis inertial chips BMI088, and two TTL serial ports communicate with the differential satellite positioning board in two directions to realize the differential positioning and attitude determination of the robot; the CAN bus interface of the controller STM32F4 communicates with the robot chassis two-way to realize motion control, and one TTL serial port realizes two-way communication with the controller STM32H7
Key words : inertial multiple redundancy;differential positioning and attitude determination;integrated navigation and control;low cost

引言

為了實(shí)現(xiàn)對(duì)室外智能體的穩(wěn)定運(yùn)動(dòng)控制[1],需要對(duì)其精確定位和定姿。現(xiàn)階段,普遍采用慣性/差分衛(wèi)星組合導(dǎo)航系統(tǒng)進(jìn)行定位和定姿,文獻(xiàn)[2]給出了一種四石英撓性加速度計(jì)和四光纖陀螺組成的多傳感器冗余捷聯(lián)慣性導(dǎo)航系統(tǒng),文獻(xiàn)[3]研究了一種多冗余捷聯(lián)慣組配置優(yōu)化與應(yīng)用方案,采用慣性導(dǎo)航信息融合的方法,提升相應(yīng)測(cè)量通道的穩(wěn)定性和系統(tǒng)使用精度。文獻(xiàn)[4]設(shè)計(jì)了SINS/GPS組合導(dǎo)航系統(tǒng)方案,并在ARM平臺(tái)進(jìn)行了設(shè)計(jì)與驗(yàn)證。由于控制理論和計(jì)算機(jī)技術(shù)的發(fā)展,采用冗余配置技術(shù)提高導(dǎo)航系統(tǒng)的可靠性和精度成為慣性導(dǎo)航技術(shù)的發(fā)展方向[5-7]。雖然市面上組合導(dǎo)航種類(lèi)眾多,但是普遍集成度低、體積大、價(jià)格偏高,不具備導(dǎo)航控制一體化功能,不能滿足實(shí)際需求。本文設(shè)計(jì)了一種低成本慣性多冗余導(dǎo)航控制一體機(jī),給出了具體的軟硬件設(shè)計(jì)方法。穩(wěn)壓電源單元、三冗余慣性/差分衛(wèi)星組合導(dǎo)航定位單元和穩(wěn)態(tài)運(yùn)控單元的設(shè)計(jì),實(shí)現(xiàn)了室外移動(dòng)智能體的導(dǎo)航控制功能。


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作者信息:

牛志朝,任磊,賀韜,崔孟楠

北京航天自動(dòng)控制研究所,北京 100854


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