In the era of intelligent industry, robotic arm and machine vision operations play an important role in the production line and become an indispensable part of industrial systems. Chip makers and industrial PCs are also aggressively attacking smart industry business opportunities, and the internal control components of robots are also trending. Solution providers including MCU, DSP, FPGA, and industrial control platforms are also making a big offer.
Increased demand for robot motor control, MCU operators are more profitable
The degree of freedom of the robot system (Degrees of Freedom, DOF) depends on the number of moving joints. The more the number of joints, the higher the degree of freedom, the better the displacement accuracy, but the number of motors that must be used is relatively large; The number of controllers or processors will increase accordingly.
Among the various controllers or processors, the market prospect of MCU is the most promising. He explained that although the processing performance of the MCU is inferior to that of the DSP or the field FPGA, the robots on the smart factory line are mostly robotic, and the high-precision, large-scale and fully-realistic robots are not common. The robotic arm is focused on motor control performance, so MCU operators who have a place in the motor control field will benefit most directly.
In order to meet the robot motor control application, in addition to providing easy-to-develop embedded platforms, design tools and general-purpose software, MCU operators must establish a perfect communication environment around the MCU, that is, the MCU must be able to handle various industrial communication protocols. On the other hand, in order to help the control efficiency and accuracy of industrial robots continue to improve, the primary development goal of future MCU operators is to improve the performance to 300~400DMIPS while continuously optimizing the performance of peripheral components, such as the ADC-like mainstream 12 The bit is gradually replaced by 16 bits; in addition, efforts should be made to improve the MCU's IP support for the surrounding development environment.
DSP business grabs the field of motor control, Yadino Freescale
In the past, motor control was mostly the world of MCUs. However, with the development of the DSP solution developed with the Cortex-M4 architecture, DSP can also compete in the high-end motor control market and compete with MCUs.
Adeno's mixed-signal processor, the ADSP-CM40x, features a 240MHz Cortex-M4 processor core and is the industry's first DSP to embed a dual-channel 16-bit ADC. Yardno uses the 65 nanometer and 0.25 micron process to produce the DSP processor core and ADC, respectively, so that the performance of each component can be maximized, and the SINC filter can be used to make the shunt resistor current directly. The isolated Σ-Δ modulator in the system architecture is tested, thus greatly improving motor control efficiency.
Shi Changhao, senior system engineer of Freescale Microcontroller, pointed out that no matter how powerful the embedded processor is, a single MCU or DSP solution can no longer meet the customers in the industrial field. The current trend is that the application processor and the MCU work together. Or the MCU integrates DSP solutions to provide the computing power, human interface applications and various real-time operations required for intelligent automation. Therefore, Freescale chose to expand the ARM processor embedded processor product line, and fully introduce the ARM core in each platform to attack industrial robots such as motor control, human-machine interface and machine vision.
Currently, Freescale's ARM product line includes the lowest-level KineTIs MCU (based on the Cortex-M0+/M4 core) to the Vybrid processor (based on the Cortex-A5+M4 core) for locking real-time and human interface applications. Until the integration of graphics processing unit (GPU), image processing unit (IPU), can replace the independent DSP and acceleration processor (APU), and meet the high-end i.MX application processor of machine vision (Machine Vision) computing requirements ( Based on the Cortex-A9 core), it provides a one-stop solution for developers. In terms of motor control, Freescale introduces the KineTIs E, V and DSC series, covering a wide range of motor control applications.
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