On May 18, 2018, the domestic laser radar benchmark company Lei Shen Intelligent officially announced that the first 16-channel integrated amplifier chip for the laser radar receiving end of Lei Shen was successfully developed. After professional testing, it perfectly meets the technical requirements of the design indicators and can be used for Single-line, 4-line, 8-line, 16-line, 32-line, 48-line, 64-line and MEMS solid-state, OPA phased array solid-state lidar. 
This will be the first 16-channel integrated amplifier chip at home and abroad. After mass production, this chip with independent intellectual property rights will reduce the cost of TOF lidar by 30%. At the same time, the successful research and development of this chip has greatly shortened the technical gap between the core chips for domestic and foreign special laser radar!
On the same day, Lai Shen Intelligent's factory in Jiashan was officially opened for business. The 15,000 square meter production plant in Jiashan Guigu has invested nearly 100 automated and semi-automated production lines. Line, 32 line and 48 line lidar.
This will greatly increase the production capacity of multi-line lidar products, and solve the problems of unbalanced supply and demand, high price, and long supply cycle of the global lidar market.
With the development of the autopilot industry, the market for automotive lidars has gradually opened up at home and abroad. Radium Intelligence, which has a place in the traditional robot lidar market, began the research and development of automotive lidars in 2017. Successfully developed C1 series of laser lidar and CX series of multi-line lidar.
At present, Lei Shen Intelligent is stepping up its research and development of solid-state lidar. It is expected that 3D FLASH and MEMS solid-state lidar will be launched in the middle of the year.
Choosing the right time to cut into the automotive lidar has always been valued by Hu Xiaobo, the founder / chairman of Lei Shen Intelligent. Hu Xiaobo previously told "Gaoge Intelligent Car" that the company has accumulated the basic core technology of lidar, autonomous driving It is a long-term development process. It is a suitable time to choose to enter the automotive lidar market in 2017.
At the end of 2017, Lei Shen Intelligent completed financing and quickly launched a multi-beam laser radar to develop solid-state laser radar. In his view, it was the right time.
Start with machinery, and finally solidFor the automotive market, Radium has currently developed two series of products: C1 series and CX series lidar. Among them, C1 series is TOF car lidar, which is designed using TOF (TIme of Fight) principle and performs 360 ° two-dimensional scanning detection on the surrounding environment.
This series of lidar is divided into multiple models according to the detection distance. This series of products are mainly used in automobile assisted driving (ADAS) and unmanned driving. In conjunction with the use of Lei Shen intelligent automobile assisted driving software, it can realize vehicle forward spacing warning, vehicle double-sided spacing warning, vehicle steering blind zone warning, vehicle lane departure warning And other functions.
The products are manufactured according to the car grade standard, with high IP protection level, and can be customized according to different scenarios and user needs. Divided into different models, the measurement range of the product covers the range of 10m ~ 200m. The radar error is small, and the entire data error is within ± 3cm, of which 70% of the data error is within ± 1cm, and 95% of the data error is within ± 2cm. The angular resolution is 0.18 °, which can be customized according to user needs.
The CX series multi-line lidar can scan the surrounding environment in three dimensions. This series of lidars are divided into 4 lines, 8 lines, 16 lines, 32 lines, and 48 lines according to the number of scanning lines. This series of products are widely used, and can be used in areas such as automobile auxiliary driving (ADAS), unmanned driving, industrial automation, security, map mapping, disaster detection, scientific research and other fields.
The CX series is a traditional mechanical lidar, which is currently being done by many companies in the industry. However, due to its complicated mechanical structure and high price, it is difficult to meet the requirements of the car regulations. Therefore, regardless of the OEM or radar manufacturer, the attention of the mass production lidar is focused on the solid-state lidar.
Therefore, in pursuing the wire harness of the mechanical rotating lidar, the laser intelligence did not blindly follow the trend, but set it at the upper limit of 48 lines.
Hu Xiaobo said that the mechanical lidar used for autonomous driving, 48 lines can already meet the requirements, and blindly following the trend to pursue too high a harness is not of much practical significance. Although mechanical lidar has its advantages and disadvantages, he believes that in the future, before the solid-state radar technology is mature, low-beam lidar still has a certain market in limited scenarios.
Full set of automated driving solutionsFor autonomous driving and ADAS, Radium Smart provides different solutions.
The laser intelligent ADAS solution is based on the single-line lidar real-time output data and visual algorithm interactive parallel operation method. When the vehicle unintentionally deviates from the lane due to driver negligence, fatigue and other reasons, the distance from the vehicle in front is too close, and the side is near When overtaking, the system can automatically issue a warning until the driver corrects the driving direction or actively controls the safe distance. Specific applications include vehicle contour and vehicle type detection, railway line foreign body intrusion detection, etc.
Radium God's autopilot program uses a multi- sensor fusion method. In addition to lidar, it also adapts to monocular cameras, binocular cameras, and millimeter-wave radar.
Multi-sensor detection of the surrounding road environment can complement the functions of the sensors; the data fusion algorithm is used to extract the lane line information, obstacle attributes and obstacle operation status information of the road, and comprehensive analysis gives warning information to remind the driver Carry out corresponding control on the vehicle to ensure the safe driving of the vehicle.
Laser God's application for autonomous driving includes single-line laser radar and camera road measurement, road environment reconstruction based on multi-line laser radar, pedestrian detection and road detection based on multi-sensor fusion.
Building a factory to expand capacity and popularize lidarLidar can greatly improve the measurement accuracy, and has an irreplaceable advantage in building high-precision maps and detecting obstacles. But since getting on the car in 2004, lidar has not been widely used on a large scale. The core problem is the high price.
Looking at the world, the rapidly rising market demand and ultra-low supply severely restrict the industrial breakthrough of lidar.
Take the US lidar manufacturer Velodyne as an example: since 2016, the factory has been expanded and mass production is expected, but so far, in view of the high dependence of lidar production on manual assembly, the production is difficult, facing the explosive growth of the lidar demand market, Velodyne's lack The cargo problem has not been alleviated.
In the open market, offline channel vendors have even adopted a mark-up sales strategy for their multi-line lidar prices. The mass production capacity of lidar has become the biggest bottleneck for industrial breakthroughs.
At the same time, due to the sophisticated and complex structure, it is difficult to achieve mass production of lidar. Lidar companies at home and abroad rarely choose to build their own production lines and choose to hand over to OEMs, resulting in low yields and high costs of lidar mass production. situation.
In order to break this situation, Radium chose to develop its own automated production line. Choosing the method of self-built production line is the road that few people take, because self-built production line means to bear more costs.
But Hu Xiaobo believes that lidar is a comprehensive product such as hardware, software, and algorithms. There are many tricks involved in the production process. If it is simply handed over to the foundry, it is difficult to cooperate with each other. The self-built factory guarantees the yield rate of mass production to a large extent, and at the same time controls the production cost and solves the problems of high prices of lidar products.
The opening of the Lei Shen Jiashan factory will greatly supplement the current Lei Shen multi-line lidar production capacity and solve the problems of insufficient global multi-line lidar production capacity and high prices.
At present, Lei Shen is located in a 3,000-square-meter production plant in Shenzhen, with a TOF single-line lidar production capacity of 700 units / day; and a triangulation lidar of 1,000 units / day. Products have been widely used in robot autonomous navigation, AGV anti-collision warning, unmanned driving, assisted driving, industrial automation, intelligent security and mapping and other fields.
Thanks to efficient production capacity guarantees, the cost of triangulation lidar and TOF single-line and 16-line lidars has dropped, and customers have been able to use lidars with optimal cost-effectiveness, which has greatly reduced procurement costs.
Lidar also has core pain
Compared with other lidar manufacturers, Lei Shen Intelligent is behind the front end of the industry. In addition to its senior optical device research and development capabilities, it also has a strong nuclear "heart" chip development capability.
At present, Lei Shen is the only domestic company that independently developed lidar IC chips. Following the laser chip realization of the lidar receiver chip at the end of 2017, Hu Xiaobo also launched the first domestic multi-line and solid-state lidar core chip.
The ASIC packaged chip is smaller than the fingernail cover. Guo Fengshou, the technical director of Lei Shen Intelligent, said that the processing capacity of the chip using the SIP system-level package supports up to 160 lines of lidar products.
The biggest difference between this chip and the traditional lidar chip is the integration of multiple functions and configuration control of the received analog signal processing, which supports the design and application of a variety of TOF lidars.
Previously, the receiving analog signal processing of lidar mostly used multiple discrete components. Lei Shen Intelligent integrated high-frequency high-bandwidth analog transistors, multi-stage gain configurable low-noise amplifiers, multiple switch selectors and power control units into the In a chip smaller than the fingernail, a single chip can achieve multi-beam lidar analog reception processing, which not only greatly reduces the size of the lidar signal processing circuit, but also effectively reduces the analog reception processing and the power consumption of the whole machine .
It is reported that the core components such as integrated circuits required for domestic lidar signal processing mainly rely on imports, which has raised the production cost of lidar to a certain extent.
After the new integrated chip is supplied in batches, the mass production cost of lidar will be firmly controlled, and only the original 5% -10% price will be used to achieve the same function.
The domestic chip industry has been relatively weak, and it has been reflected in all walks of life, especially in the high-tech field. Chips with independent intellectual property rights can not only ensure the supply volume, but also greatly reduce the cost.
Radium has been in the field of lidar for many years and has a deep understanding of this. Therefore, it was determined to tackle the chip problem and pave the way for the future large-scale application of automotive lidar.
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