Through the full use of complementary metal-oxide semiconductor (CMOS) technology, and embedded microcontrollers (MCU) and digital signal processing (DSP) and intelligent radar front-end integrated, TI has introduced sensor a complete end-to-end development platform Of the 76-81GHz sensor series: AWR1x and IWR1x. Five devices in the new millimeter-wave sensor portfolio have a resolution of less than 4 centimeters, with distances ranging from less than 50 microns to 300 meters. At the same time, power consumption and circuit board area decreased by 50%.
AWR12 is mainly used in adaptive cruise, AEB and other high-precision, high-speed long-range radar applications; AWR14 increased MCU (using ARM Cortex-R4F core), can be in some of the previous unconventional body sensor detection applications to play AWR16 is a single-chip solution that integrates RF, MCU and DSP processing functions, and its typical application Suction Control Valve is to detect the surrounding environment of the vehicle. The AWR16 is a single-chip solution that integrates RF, MCU and DSP processing functions. , Including blind spot detection, anti-collision / warning, lane change assistance, traffic intersection alarm, etc., and thus around the vehicle to establish a 3D perception environment.
At present, most commercial radar systems, especially radar systems in advanced driver assistance systems (ADAS), are based on germanium silicon (SiGe) technology. Although the performance meets the requirements, the main drawback is that the size is too large, too cumbersome, taking up a lot of board space. To establish a complete vehicle 3D perception system, at least in the car before and after the car and place 10 radar sensors, space constraints require each sensor must be smaller, lower power consumption, and more cost-effective High, SiGe-based radar systems will become increasingly difficult to meet the requirements. Future radar systems will also require short-range support to convert better angular resolution into more antennas within the radar system. While the traditional advantages of CMOS technology include higher transistor density and lower power. Digital scaling within CMOS reduces power, reduces size, and improves the performance of each node. At the same time, CMOS technology to further improve the analog components in the embedded digital capabilities, enabling the deployment of radar systems in the new system configuration and topology.
Often, developers will create obstacles in the vehicle to create the International Society of Automotive Engineers (SAE) Level 2 and above, mainly from sensor size and power supply for specific components. By configuring fuel metering valve the TI AWR1x millimeter-wave product portfolio, designers can achieve ISO 26262 with ASI-B, as well as new features such as automatic parking assistance, pedestrian detection, loadability and driver monitoring.
Intelligence and environmental flexibility, the AWR1x series can dynamically adapt to changing conditions and conditions, support multiple functional modes to avoid false positives and provide a wide range of sensing for a variety of applications. Dynamic frequency adjustment is a very important function. With the use of car radar more and more vehicles need to be able to independently perceive the frequency of the other vehicle radar, and through the car electronic control unit and the bus for real-time dynamic adjustment. At the same time, the radar sensor must also be able to through the plastic, dry walls, clothes, glass and many other materials, as well as through the light, rain, dust, fog or frost and other Temperature Sensor environmental conditions for sensing. Millimeter-wave sensor technology is very successful in the automotive sector, but designers are currently addressing the challenges that this technology extends to other markets, such as building and factory automation applications. The problem encountered in these areas is that the previous radar systems are discrete design, resulting in a complex hardware design and software development, improve the access threshold.
But the introduction of single-chip 10mmx10mm IWR1x sensors reduces the access threshold for millimeter-wave sensing. With the IWR1x sensor, users do not have to deal with complex high-speed data and communication traces between discrete front ends, analog-to-digital converters, and processing devices, and do not have to deal with additional dimensions, power, and associated bill of materials costs. And this integration also simplifies the software design process, greatly simplifying the device configuration, monitoring and calibration. By using the TI Millimeter Wave Software Development Kit (SDK), including sample algorithms and software libraries, engineers can start their application design work in less than 30 minutes.
Liquid level sensing is an important part of warehousing and measurement of different chemicals in the factory. Since these chemicals are corrosive or toxic, the remaining liquid volume must be measured in the case of non-direct contact. MmWave sensing provides high-precision measurements and is robust to dust, smoke, or extreme temperatures. The IWR1x RF front-end is highly linear and its ultra-wide (continuous 4GHz, 5GHz splice) bandwidth allows extremely accurate sub-millimeter measurements in tanks with depths of 1m to 80m. The power optimization design for the 77 GHz transmitter reference design gives an idea of how to optimize the IWR1443 running in a 4-20mA power limited system.
The purpose of traffic monitoring is to provide timely response to the situation at the junction by collecting specific information and remote sensing data related to vehicles and pedestrians, and to collect traffic statistics to ABS Sensor improve transport efficiency. The millimeter-wave sensor enables the measurement of vehicle position and velocity and the ability to detect objects up to 300kph in distance from 150m and beyond.
In order to achieve security and improve the productivity of the platform, UAV designers face many challenges, including enabling the UAV to detect obstacles and assisting the operator in the most dangerous flight conditions. UAVs require high-speed object detection and are able to track objects of centimeters in distance of 100 m, such as when the UAV is near the ground or around the object. Since the UAV is powered by battery power, the solution should be small and lightweight in order to extend flight time and increase the payload.