In early January this year, auto parts supplier Bosch and China said they plan to acquire a 5% stake in HERE, a global digital map and location service provider. Before Bosch and the mainland, HERE has won the favor of well-known companies such as Audi, BMW, Daimler and Intel.
For this acquisition, Bosch believes that Bosch's precise positioning service "Bosch Road Features" technology can be used to update and maintain the high-precision maps developed by HEE Maps for autonomous vehicles. Previously, Bosch had signed cooperation agreements with TomTom, Gaode Map, Baidu, and NavInfo.
Take Baidu's Apollo program as an example, its map service is the part that most companies that join the Baidu ecosystem value. At present, whether it is ADAS level or high-precision map level, in addition to the map itself, high-precision positioning is one of the important links.
Traditional car navigation systems use satellite receivers and commercial satellite services to help drivers reach their destinations with positioning accuracy within a few meters. As the use of automated driving systems increases, for example, lane departure warning (LDW), adaptive cruise control (ACC), automatic parking, automatic driving, safety and reliability require higher positioning accuracy.
An autonomous car travels on a road with a lane line. Its decision on the road boundary is obtained by fusion of a high-precision map and a lane line recognition system. The high-precision map must be matched with high-precision positioning.
Recently, the domestic precision location service company Chihiro location and Qualcomm technology reached a strategic cooperation agreement, will integrate high-precision location services in Snapdragon's X5 LTE vehicle communication chip for connected cars, helping users achieve high-precision positioning at the sub-meter level. The service will be introduced to the market as early as the third quarter of this year.
Chihiro said that the Snapdragon X5 LTE integrated with the service will be launched in the third quarter of 2018 and is expected to be used in multiple models produced in 2019 to help advanced assisted driving and unmanned scenes. The realization of the driving application. At present, many well-known vehicle manufacturers and first-tier component suppliers at home and abroad have confirmed that they will use the chip.
The chip is currently one of the main constraints limiting high precision positioning accuracy, power consumption, and system cost.
Recently, STMicroelectronics introduced the world's first multi-frequency satellite navigation receiver chipset for safety-critical automotive applications and decimeter and centimeter-level high-precision positioning applications for PPP and RTK applications.
By simultaneously tracking all Global Navigation Satellite Systems (GNSS), receiving at least two frequencies from each satellite system (other products receive only one frequency), ST's automotive-grade Teseo APP (Car Positioning Accuracy) receiver provides High-quality raw GNSS data required for PPP (Precision Single Point Positioning) and RTK (Real Time Dynamics) algorithms enable precise positioning and fast convergence times on a global scale.
In addition to high precision, this industry-unique receiver monitors satellite data integrity, and if accuracy is reduced for any reason, the receiver immediately notifies the system.
Along with the Teseo APP, a Teseo V chip, also with multi-frequency precision positioning, is a simplified product developed for non-safety critical applications that do not require integrity guarantees. STMicroelectronics is currently sampling to major customers who are developing autonomous driving systems, which are expected to be installed first on high-end models launched in 2020/2021.
U-blox, a leading global provider of wireless and positioning modules and chips, today announced the availability of the F9 technology platform to provide high-precision positioning solutions for mass-market industrial and automotive applications.
The platform combines multi-band Global Navigation Satellite System (GNSS) technology with dead reckoning algorithms and high-precision algorithms, and is compatible with a wide range of GNSS calibration data services to achieve centimeter-level accuracy levels. U-blox F9 lays the foundation for the next generation of high-precision navigation, augmented reality and unmanned vehicle technology.
The u-blox F9 platform will support next-generation u-blox positioning modules for mass-market industrial and automotive applications. It uses multi-band (L1/L2/L5) GNSS signals to correct positioning errors caused by the ionosphere and provides a shorter first positioning time (fast TTFF).
To achieve centimeter-level accuracy, the u-blox F9 platform integrates real-time dynamic (RTK) technology to support and provide mainstream GNSS calibration services, while also providing an open interface to receive services from traditional GNSS calibration service providers.
Automotive applications for the u-blox F9 platform include lane recognition navigation for head-up display, in-vehicle infotainment systems and vehicle networking (V2X) communications, and the platform is optimized for low power; enhanced security through built-in interference and spoofing detection systems Sexual standards can effectively prevent intentional and unintentional interference; and its inertial sensor-based dead reckoning technology extends high-precision, high-performance positioning technology into challenging urban environments.
In terms of domestic chips, the world's first high-precision navigation positioning chip supporting the new Beidou-3 signal system was officially released in September last year. This is a domestic baseband and RF integrated chip with completely independent intellectual property rights, developed by Shenzhen Huada Beidou Technology Co., Ltd.
This ultra-low-power third-generation Beidou chip enables sub-meter positioning accuracy and chip-level security encryption without ground-based enhancement.
For the signal reception of various signal frequencies for improving high-precision positioning, the multi-mode multi-frequency receiver using the conventional narrow-band RF receiving front-end technology presents a challenge, and the demand for the increasingly small size of the receiver board is obvious.
Last year, another Chinese company, Hezhong Zhuang, released China's first four-channel GNSS broadband RF chip, Skyhawk. This is another Chinese precision star-based enhancement chip after the star-based enhanced baseband chip "Tianqin" released last year.
In the past, many chips were compatible with the world's major GPSS (Global Satellite Navigation System), and now it is compatible with this new chip, which greatly reduces the cost.
The traditional receiver RF front-end uses a narrow-band RF chip design. The single-antenna full constellation multi-frequency OEM board requires four RF chips plus 17 filters, while the broadband RF chip requires only one chip and four filters. Just fine.
In many applications of Beidou navigation technology, in order to make intelligent driving better, Haige Communication has developed a precision of 20 cm based on autonomous vehicle map software, using core technologies such as fast path planning algorithm and fast map display. Lane level "Beidou navigation software.
The positioning chip developed by Hager Communication can also realize seamless links between outdoor navigation and indoor navigation. This chip is the first integrated Beidou/GPS/TC-OFDM three-channel positioning chip in China, which can provide users with navigation and positioning services for seamless switching in all airspace and full-time domain.
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