Device, system and method for positioning engine based on universal multi-mode state machine and application thereof

• Main Authors: ZHUANG HAIRUO, WANG PENGLUO, BACHAR, AMIT, SETHURAMAN, VIGNESH, LI XUE, EKAMBARAM, VENKATESAN, NARAMPATI
• Format: Patent
• Language: Chinese; English
• Published: 30.12.2022
• Subjects: ANALOGOUS ARRANGEMENTS USING OTHER WAVES; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION ORRERADIATION OF RADIO WAVES; MEASURING; PHYSICS; RADIO DIRECTION-FINDING; RADIO NAVIGATION; TESTING

Devices, systems, and methods for positioning using a global navigation satellite system (GNSS) with a state machine-based positioning engine, and applications thereof are provided. When the device receives a GNSS signal, the device provides a positioning engine to process the GNSS signal and determines a state of the positioning engine based on a GNSS state and a position-speed-time (PVT) state. Specifically, the state of the positioning engine can be switched among at least three states, including a dead reckoning state, a tight coupling state and a loose coupling state. Once the state is determined, the positioning engine may determine a positioning accuracy state based on the state of the positioning engine. Thus, a downstream module on the device may use the positioning accuracy state to perform a corresponding downstream action. 提供了使用具有基于状态机的定位引擎的全球导航卫星系统(GNSS)进行定位的装置、系统和方法及其应用。当装置接收GNSS信号时，装置提供定位引擎以处理GNSS信号，并根据GNSS状态和位置-速度-时间(PVT)状态确定定位引擎的状态。具体来说，定位引擎的状态可在至少三种状态之间切换，包括航位推算状态、紧耦合状态和松耦合状态。一旦确定了状态，定位引擎就可以