Aug
2024
20 Aug 2024
With the development of automobile assisted driving and driverless driving, inertial navigation has increasingly become an indispensable technical requirement. Under the dense high-rise buildings, complex elevated buildings, and lengthy underground tunnels in the city, GPS signals are blocked and interfered, making it unable to provide navigation services. At this time, high-precision inertial navigation can make up for the loss of GPS signals and ensure normal navigation itineraries.
The core of the inertial navigation IMU is an inertial sensor. When the inertial navigation IMU is installed on a vehicle, it can calculate the vehicle's displacement and azimuth angle by measuring the acceleration and angular velocity of the vehicle's movement. It can fill the gap of GPS signal loss, provide high-precision positioning for vehicles, and ensure vehicle driving safety.
ST's automotive-grade six-axis inertial sensor ASM330LHH series provides ultra-high-resolution motion tracking functions for advanced vehicle navigation and information service systems. The ASM330LHH series can meet the continuity and accuracy requirements of vehicle positioning by inertial navigation.
When satellite signals are blocked, the ASM330LHH series can provide sensor data for advanced dead reckoning algorithms to calculate the precise position of the car. The advanced low-noise, temperature-stable design of the ASM330LHH series enables reliable in-vehicle information services and can also meet the needs of advanced autonomous driving systems.
►Scenario application diagram
►Display board photo
►Solution block diagram
►Core technical advantages
● The ASM330LHH series is the reference design of Qualcomm MSM8225 smart cockpit platform, and is also shipped with domestic smart cockpit platforms such as Jiefa, Xinchi, and Zhanrui.
● Assist customers with Apple Carplay, Google Android Auto certification road test experience
● AEC-Q100 standard
● ASM330LHB series supports machine learning and functional safety B
● -40 °C to +125 °C temperature range
● A series of products that can meet different technical requirements of customers
◆ASM330LHH: AEC-Q100 up to 105°C
◆ ASM330LHHX : AEC-Q100 up to 105°C With low power mode, Embedded MLC and FSM
◆ ASM330LHB : AEC-Q100 up to 105°C With low power mode, Embedded MLC and FSM, With ASIL-B library
◆ ASM330LHBG1 : AEC-Q100 up to 125°C With low power mode, Embedded MLC and FSM, With ASIL-B library
►Project specifications
● Comply with AEC-Q100 standard
● Wider temperature range: -40 °C to +125 °C
● Built-in compensation mechanism ensures the device maintains excellent stability over the entire temperature range
● Accelerometer with user-selectable full scale range up to ±16 g
● Extended gyroscope range from ±125 to ±4000 dps
● SPI and I²C host serial interfaces
● Six-channel synchronous output to improve the accuracy of dead reckoning
● Intelligent programmable interrupt
● Embedded 3 KB FIFO can be used to offload the host processor
● Comply with ECOPACK, RoHS and "green" requirements
◆ASM330LHH: AEC-Q100 up to 105°C
◆ ASM330LHHX : AEC-Q100 up to 105°C With low power mode, Embedded MLC and FSM
◆ ASM330LHB : AEC-Q100 up to 105°C With low power mode, Embedded MLC and FSM, With ASIL-B library
◆ ASM330LHBG1 : AEC-Q100 up to 125°C With low power mode, Embedded MLC and FSM, With ASIL-B library
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