On December 29, 2022, 2022 AAC Ruijie Technology Perception Experience Innovation Summit was held in Shenzhen.
AAC Ruijie Technology expanded the perception experience needs and technology accumulation in the consumer electronics field to the automotive industry, launching the industry’s first intelligent cockpit and intelligent driving perception interaction solution, with four major modules including “automotive audio, tactile feedback, voice collection, and perception interaction”.
Get to Know Ruijie Technology
Formerly known as Shenzhen Yuanyu, which was established in 1993, Ruijie Technology’s current chairman, Pan Zhengmin’s father, Pan Zhonglai, previously served as the production technology factory director of Jiangsu Changzhou Hardware and Electrical Appliances Factory.
In August 2005, it was officially listed on the Hong Kong Stock Exchange and renamed Ruijie Technology.
Currently, Ruijie possesses technology in material research and development, simulation, algorithms, design, automation, and process development in the fields of acoustics, optics, tactile feedback, precision manufacturing, micro-electro-mechanical systems, wireless radio frequency, and antennas, providing leading micro-proprietary technology solutions for intelligent devices.
Ruijie’s history of development is also the history of the development of domestic mobile phones.
In 1998, Ruijie, then known as Yuanyu, launched a miniature receiver as “handset” style mobile phones began to transform into handheld devices.
In 2007, MEMS microphones were launched, and in 2011, touch motors and other products were launched.
Currently, Ruijie Technology’s basic business lines are all around intelligent phones.
Sound System
In July 2022, AAC customized a 720° surround sound system for the NETA S cockpit. Currently, this cockpit has been put into mass production and has become an important product project for Ruijie Technology to enter the automotive industry.
AAC has customized sound field reconstruction algorithm for NETA S, consisting of 21 speakers such as headrest speakers, innovative USS micro speakers, VFW thin vibration damping bass/ultra-low frequency speakers, with a maximum output power of 1,216W and a 720° NETA customized surround sound system.
For car audio systems, AAC has released three product series:
- Entry-level. It has 4-6 channels and 5-7 speakers, highlighted by the detachable smart speaker;
- Preferred-level. It has 15 channels and 18 speakers, equipped with 3D sound field enhancement technology;
- Flagship-level. It has 32 channels and 39 speakers, in addition to 3D sound field enhancement technology, it also has functions such as personal near-field surround and 4D full-feel.
Tactile feedback
AAC uses tactile feedback effects that comply with ergonomic experience to make up for the lack of visual and auditory perception in some environments. In the event of collisions, deviations, or friction, it provides prompt and accurate tactile feedback to drivers and passengers.
The haptic feedback refers to the active vibration feedback of the steering wheel, seat, etc., and the feedback on the vibration after pressing the car machine function button, which may include directional information and different materials. This is mainly based on the vibration motor of AAC in the field of consumer electronics, with accumulated technology.
Speech collection
The speech collection module uses AAC to collect the sound through the microphone array in the position of the roof, central control board, top lamp, or armrest in the car to achieve specific seat sound collection, actively eliminating various noises, and accurately realizing the control of outside voice and penetrating the horn.
In vehicle speech collection is mainly based on partitions, such as the 4-6 audio zone recognition used by head car companies. In addition to partitions, microphones can also achieve gesture recognition through ultrasonic tracking, as well as detection of living things in the rear seats.
Perception Interaction
The perception interaction module, MEMS inertial module and chip products can cover more than 20+ automotive application scenarios, providing a full-stack solution for regulatory level + functional safety level.
In the ADAS business, Ruisheng also launched products for MEMS inertial sensors and related chips. There are single-axis, three-axis, six-axis gyroscope chips and so on.
Conclusion
The smartphone market did not usher in the expected wave of replacement after the arrival of 5G, and the market size has been shrinking year by year. Faced with this situation, many smartphone supporting companies began to turn their attention to the new energy vehicle market and layout their business.
Among them are smartphone manufacturers such as Huawei, Xiaomi, and Tier 1 suppliers like AAC Ruisheng.
AAC Ruisheng Technology has taken out its precipitated acoustic and sensor technology products for the automobile supply chain. In terms of parameters and service types, they have competitiveness.
But to see which major customers Ruisheng can win over, it will depend on their costs.
This article is a translation by ChatGPT of a Chinese report from 42HOW. If you have any questions about it, please email bd@42how.com.