Robot Tractors Hit the Field and Will Sony be the Next Major EV Manufacturer?


Episode Summary:

Sony Corporation became famous for innovation in the consumer electronics space, developing the first truly popular transistor pocket radio and of course the Walkman series of portable cassette and CD players. The company has expanded considerably from that consumer sector to include technologies such as electronic materials and smart phones, but much of the company’s recent strategy is centred on entertainment, specifically feature films and gaming through the PlayStation platform. The company has revealed their second electric vehicle prototype, following a year of road testing in Europe and appears to be ready for series production. EV sector is crowded with multiple startups, but Sony appears to be using a slightly different strategy from other startup automakers: they plan to use self driving electric vehicles as delivery systems for an immersive user experience that includes Sony’s entertainment products. If successful, the project may change the fundamental economics of the auto industry from that of selling transportation, to delivering data. 

Self driving cars and trucks are reality today with companies such as Cruise, Waymo, Argo AI and TuSimple fielding autonomous vehicles on public roads today. Autonomously guided vehicles are also common sight in factories and warehouses around the world, but what about agriculture? What prototypes have been built and tested, at the 2022 Consumer Electronics Show in Las Vegas, John Deere unveiled a production ready optionally driven tractor based on the companies 8R design. The tractor uses a hybrid approach to autonomy, using multiple sensors for obstacle detection and geo-mapping for location to within 1 inch. Operators drive the tractor to the field, then move on to other tasks. In a tight labor market in the agriculture sector, autonomy be essential for sustained productivity and cost control. 

Access all episodes of This Week in Engineering on engineering.com TV along with all of our other series.

Transcript of this week's show:

To see any graphs, charts, graphics, images, and/or videos to which the transcript may be referring, watch the above video.

Segment 1: For decades, Tokyo-based consumer electronics giant Sony Corporation has been a manufacturer of consumer electronics, starting with the first widely produced transistor radios in the late 1950s. The company has grown to include multiple divisions operating in areas as broad as electronic materials and movie production, but at the 2022 Consumer Electronics Show in Las Vegas, the company unveiled a prototype of a new product in an industry with which Sony has never been associated: cars. 

At the 2020 CES, Sony announced an initiative the company called “VISION– S”, exhibiting a prototype at their booth and following up with road testing in Europe. As expected, Sony has focused on imaging and sensing technology, and the user experience and the company began 5G testing of the car in April of last year. At this year’s show, Sony unveiled a crossover SUV prototype to join the sedan, sharing the same platform and cloud conductivity of the earlier sedan. 

The new prototype, at this point called the VISION– S 02, is a seven-seater which the company declares will accommodate a “large variety of lifestyles within a society where values are becoming increasingly diversified.” In engineering terms, this means a sensor suite of high-resolution CMOS image sensors and lidar integrated with the vehicle’s entertainment system and driver displays, alerting the driver to obstacles in unsafe driving conditions. As current development, Sony declares that the systems will be released at level 2+ according the SAE autonomous driving ranking system, similar to Tesla and most other manufacturers. 

One difference to conventional driver assist systems is Sony’s emphasis on low latency 5G cloud conductivity to allow remote operation. Experimentally, the company has connected vehicles between Japan and Germany with low latency systems using the company’s knowledge base in handheld devices. Vehicle settings, locks and over the air software updates are expected to be handled through the cloud, although the company has not specified if these will be software as a service offering. 

Perhaps the biggest difference between Sony’s EV intentions and those of legacy auto and EV startups is their plan to use the vehicles as a delivery system for immersive music experiences, high-definition digital video services and gaming using the company’s PlayStation platform. To turn this ambitious project into reality, the firm has launched a new company, Sony Mobility Inc. so if you been wondering what drivers will do with their time once self driving vehicles take over, Sony intends to keep them well entertained. 

Segment 2: Fully autonomous driving has been the most anticipated consumer technology of the last 10 years, and it’s close enough that companies like Cruise, Waymo, Argo AI and TuSimple are operating autonomous vehicles on public streets today. But cab drivers and truckers are not the only people that spend long hours behind the wheel. 

Farmers spend much of their working life behind the wheel, doing monotonous but essential operations in tillage, seeding, dressing and harvesting. Self driving tractors have been talked about for years, but strictly as prototypes. This is changing and at CES 2022, Moline Illinois-based John Deere announced the company’s first tractor that can be optionally operated autonomously or by a human. 

The engineering challenges are similar to those in auto self driving systems. While obstacle detection is a common problem, there are differences in the way tractor operates in the field compared to motor vehicles on roads. A major debate about the way forward in self driving is the way sensory data is aggregated and processed. Tesla uses cameras and an algorithm to make sense of the images, while other companies use combinations of lidar and other sensors to detect obstacles, in combination with predefined area mapping. The John Deere system uses six pairs of stereo cameras, whose images are passed through a deep neural network that classifies each pixel in approximately 100 milliseconds and determines if the machine continues to move or stops, depending on obstacle detection. 

While this is similar to Tesla’s approach, the Deere system also uses position checking relative to a geo-fence, accurate to a resolution of less than an inch. Farmers must drive the tractor to the field, then turn on the autonomous function, which they can then monitor anywhere from a mobile device. The operating app feeds the farmer real-time data including video feeds, essential speed and depth information as well as the running performance of the tractor. What makes the John Deere system different from other autonomous tractor experiments? 

The main difference is that the John Deere system will be available for order later this year and is based on existing 8R tractor and implement technology and can be operated like a conventional machine in non-geo-fenced areas. With serious labour disruptions and a chronic labor shortage in the agriculture sector, robotic tractor technology couldn’t come at a better time.