The Changing Places group proposes that fundamentally new strategies must be found for creating the places where people live/work, and the mobility systems that connect them, in order to meet the profound challenges of the future. We are investigating how new models for urban architecture and personal vehicles can be more responsive to the unique needs and values of individuals though the application of disentangled systems and smart customization. We are developing technology to understand and respond to human activity, environmental conditions, and market dynamics. We are interested in finding optimal combinations of automated systems, just-in-time information for personal control, and interfaces to persuade people to adopt sustainable behaviors.
Research Projects
A Market Economy of Trips
Dimitris Papanikolaou and Kent LarsonWe are developing a new strategy to create autonomous self-organizing vehicle sharing systems that uses incentive mechanisms (dynamic pricing) to smooth demand imbalances, and an interactive graphical user interface to effectively communicate location-based price information. Prices adjust dynamically to parking needs, incentivizing users to drive vehicles to stations with too few vehicles, while discouraging arrivals to stations with excess vehicles. This research explains how users make decisions in dynamically priced mobility systems, under which circumstances their actions may make up a self-regulating economy, and how this economy dynamically performs in different demand patterns. To address these issues we develop a computational framework using system dynamics, urban economics, and game theory that models system behavior which will be used to determine optimum pricing policy, fleet size, and density of parking stations for having a stable yet profitable system.
AEVITA
Kent Larson, William Lark, Jr., Nicholas David Pennycooke and Praveen SubramaniWith research institutions from various private, government and academic sectors performing research into autonomous vehicle deployment strategies, the way we think about vehicles must adapt. But what happens when the driver, the main conduit of information transaction between the vehicle and its surroundings, is removed? The living EV system aims to fill this communication void by giving the autonomous vehicle the means to sense others around it, and react to various stimuli in as intuitive ways as possible by taking design cues from the living world. The system is comprised of various types of sensors (computer vision, UWB beacon tracking, sonar) and actuators (light, sound, mechanical) in order to express recognition of others, announcement of intentions, and portraying the vehicle’s general state. All systems are built on the 2nd version of the 1/2 –scale CityCar concept vehicle, featuring advanced mixed-materials (CFRP + Aluminum) and a significantly more modularized architecture.
Autonomous Facades for Zero-Energy Urban Housing
Ronan Lonergan and Kent LarsonWe are developing self-powered responsive building envelope components that efficiently integrate solar shading and heating, ventilation, privacy control, and ambient lighting. Dynamic facade modules integrate sensing systems to respond to both environmental conditions and the activities of people.
CityCar
Ryan C.C. Chin, William Lark, Jr., Nicholas Pennycooke, Praveen Subramani, and Kent LarsonThe CityCar is a foldable, electric, sharable, two-passenger vehicle for crowded cities. Wheel Robots—fully modular in-wheel electric motors—integrate drive motors, suspension, braking, and steering inside the hub-space of the wheel. This drive-by-wire system requires only data, power, and mechanical connection to the chassis. With over 80 degrees of steering freedom, Wheel Robots enable a zero-turn radius; they also enable the CityCar to fold by eliminating the gasoline-powered engine and drive-train. We are working with Denokinn on an integrated, modular system for assembly and distribution of the CityCar. This project, based in the Basque region of Spain, will be called the "Hiriko" Project, which stands for Urban Car. The Hiriko project aims to create a new, distributed manufacturing system for the CityCar which will enable automotive suppliers to provide "core" components made of integrated modules such as in-wheel motor units, battery systems, interiors, vehicle control systems, vehicle chassis/exoskeleton, and glazing.
CityCar Driving Simulator
Kent Larson, Chris Post and Praveen SubramaniIn next-generation electric vehicles, drive-by-wire technology will allow us to replace mechanical linkages for steering, throttle, and braking with electronic controls. This enables a wealth of possibilities for controlling electric vehicles; we can make almost any physical interface send appropriate electronic messages to the wheels. The CityCar Driving Simulator uses the CityCar's physical parameters to model the car's driving behavior, allowing users to drive a virtual CityCar with a variety of alternative controls. While the steering wheel has been a ubiquitous and important driving interface, there is vast potential for alternative interfaces. With the driving simulator, we can prototype and test these interfaces with a virtual vehicle to develop design rules and principles that will shape next-generation driving interfaces.
CityCar Folding Chassis
William Lark, Jr., Nicholas Pennycooke, Ryan C.C. Chin and Kent LarsonThe CityCar folding chassis is a half-scale working prototype that consists of four independently controlled in-wheel electric motors, four-bar linkage mechanism for folding, aluminum exoskeleton, operable front ingress/egress doors, lithium-nanophosphate battery packs, vehicle controls, and a storage compartment. The folding chassis can demonstrate compact folding (3:1 ratio compared to conventional vehicles), omni-directional driving, and wireless remote controls. The half-scale mock-up explores the material character and potential manufacturing strategies that will scale to a future full-scale build. (Continuing the vision of William J. Mitchell.)
CityCar Half-Scale Prototype
Kent Larson, Nicholas David Pennycooke and Praveen SubramaniThe CityCar half-scale prototype has been redesigned from the ground up to incorporate the latest materials and manufacturing processes, sensing technologies, battery systems, and more. This new prototype demonstrates the functional features of the CityCar at half-scale, including the folding chassis. New sensing systems have been embedded to enable research into autonomous driving and parking, while lithium batteries will provide extended range. A new control system based on microprocessors allows for faster boot time and modularity of the control system architecture.
CityCar Ingress-Egress Model
Kent Larson, Nicholas David Pennycooke and Praveen SubramaniThe CityCar Ingress-Egress Model provides a full-scale platform for testing front ingress and egress for new vehicle types. The platform features three levels of actuation for controlling the movement of seats within a folding vehicle, and can store custom presets of seat positioning and folding process for different users.
CityCar Testing Platform
William Lark, Jr., Nicholas Pennycooke, Ryan C.C. Chin and Kent LarsonThe CityCar Testing Platform is a full-scale and modular vehicle that consists of four independently controlled Wheel Robots, an extruded aluminum frame, battery pack, driver's interface, and seating for two. Each Wheel Robot is capable of over 120 degrees of steering freedom, thus giving the CityCar chassis omni-directional driving ability such as sideways parking, zero-radius turning, torque steering, and variable velocity (in each wheel) steering. This four-wheeler is an experimental platform for by-wire controls (non-mechanically coupled controls) for the Wheel Robots, thus allowing for the platform to be controlled by wireless joysticks. The four-wheeler also allows the CityCar design team to experiment with highly personalized body/cabin designs. (Continuing the vision of William J. Mitchell.)
CityHome
Kent Larson, Daniel Smithwick and Hasier LarreaWe demonstrate how the CityHome, which has a very small footprint (840 square feet), can function as an apartment two to three times that size. This is achieved through a transformable wall system which integrates furniture, storage, exercise equipment, lighting, office equipment, and entertainment systems. One potential scenario for the CityHome is where the bedroom transforms to a home gym, the living room to a dinner party space for 14 people, a suite for four guests, two separate office spaces plus a meeting space, or an a open loft space for a large party. Finally, the kitchen can either be open to the living space, or closed off to be used as a catering kitchen. Each occupant engages in a process to personalize the precise design of the wall units according to his or her unique activities and requirements.
Context-Aware Dynamic Lighting
Maria Thompson, Harrison Hall, and Kent LarsonBuildings consume about three-quarters of US electricity, and lighting accounts for about one-third of typical office-building energy use. Much of this is wasted by illuminating unoccupied spaces or those with sufficient natural light. We are deploying tiny, low-cost, easily installed wireless sensors to control tunable LED luminaires. The control system will turn off, dim, or tune the lighting to more energy-efficient spectra in response to the location, activities, and paths of the occupants. It will also respond to the daylight entering the space. An interface will allow occupants to define activities and preferences for their personal lighting. Energy savings may approach 40% without the occupants being aware of, or disturbed by, changes in lighting. (A House_n Research Consortium project funded by Siemens and the MIT Energy Initiative)
Distinguish: Home Activity Recognition
We propose a recognition system with a user-centric point of view, designed to make the activity detection processes intelligible to the end-user of the home, and to permit these users to improve recognition and customize activity models based on their particular habits and behaviors. Our system, named Distinguish, relies on high-level, common sense information to create activity models used in recognition. These models are understandable by end-users and transferable between homes. Distinguish consists of a common-sense recognition engine that can be modified by end-users using a novel phone interface.
Environmental Impacts of Utilizing Mass Customization
Ryan C. C. Chin, Daniel Smithwick, and Kent LarsonSanders Consulting’s 2005 ground-breaking research, “Why Mass Customization is the Ultimate Lean Manufacturing System” showed that the best standard mass-production practices when framed from the point of view of the entire product lifecycle–from raw material production to point of purchase–was actually very inefficient and indeed wasteful in terms of energy, material use, and time. Our research examines the environmental impacts when applying mass customization methodologies to men's custom dress shirts. This study traces the production, distribution, sale, and customer-use of the product, in order to discover key areas of waste and opportunities for improvement.
GrowPOD: Interactive Farming Module
Kent Larson, Jennifer Broutin and Topper CarewWe are developing an interactive farming module that serves as a platform for closing the loop between people and food. The structure will function as a scalable, modular system augmented by technology such as monitoring sensors, robotic components, and energy capture devices to facilitate ease and a deeper understanding of the process through which hydroponic vegetables are grown. A database and monitoring network is set up to determine growing needs and profiles of plant species in order to provide real-time feedback information in assisting with plant care. A prototype is being developed for deployment within the Boston public school system. Curricula will be proposed to aid students in monitoring the system through constructivist learning principles, aiding the implementation of STEM research in schools. By bringing farming to urban areas, we will short-circuit the opacity of large-scale agriculture and create a feedback cycle for healthier, sustainable living.
Hiriko CityCar with Denokinn
Ryan C.C. Chin, Kent Larson, William Lark, Jr., Chih-Chao Chuang, Nicholas Pennycooke, and Praveen SubramaniWe are working with Denokinn to design and develop an integrated modular system for assembly and distribution of the CityCar. This project, based in the Basque region of Spain, will be called the "Hiriko" Project, which stands for Urban Car (Hiri = urban, Ko = coche or car in Basque). The goal of the Hiriko project is to create a new, distributed manufacturing system for the CityCar which will enable automotive suppliers to provide "core" components made of integrated modules such as in-wheel motor units, battery systems, interiors, vehicle control systems, vehicle chassis/exoskeleton, and glazing. A full-scale working prototype will be completed by the end of 2011 with an additional 20 prototypes to be built for testing in 2012. (Continuing the vision of William J. Mitchell).
Home Genome: Mass-Personalized Housing
Daniel Smithwick and Kent LarsonThe home is becoming a center for preventative health care, energy production, distributed work, and new forms of learning, entertainment, and communication. We are developing techniques for capturing and encoding concepts related to human needs, activities, values, and practices. We are investigating solutions built from an expanding set of building blocks, or “genes,” which can be combined and recombined in various ways to create a unique assembly of spaces and systems. We are developing algorithms to match individuals to design solutions in a process analogous to that used to match customer profiles to music, movies, and books, as well as new fabrication and supply-chain technologies for efficient production. We are exploring how to tap the collective intelligence of distributed groups of people and companies to create an expanding set of solutions.
Intelligent Autonomous Parking Environment
Chris Post, Raul-David Poblano, Ryan C.C. Chin, and Kent LarsonIn an urban environment, space is a valuable commodity. Current parking structures must allow each driver to independently navigate the parking structure to find a space. As next-generation vehicles turn more and more to drive-by-wire systems, though, direct human interaction will not be necessary for vehicle movement. An intelligent parking environment can use drive-by-wire technology to take the burden of parking away from the driver, allowing for more efficient allocation of parking resources to make urban parking less expensive. With central vehicle control, cars can block each other while parked since the parking environment can move other vehicles to enabled a blocked vehicle to leave. The parking environment can also monitor the vehicle charge, allowing intelligent and efficient utilization of charge stations by moving vehicles to and from charge stations as necessary.
Mass-Personalized Solutions for the Elderly
Kent Larson, Ryan C.C. Chin, Daniel John Smithwick and Tyrone L. YangThe housing, mobility, and health needs of the elderly are diverse, but current products and services are generic, disconnected from context, difficult to access without specialized guidance, and do not anticipate changing life circumstances. We are creating a platform for delivering integrated, personalized solutions to help aging individuals remain healthy, autonomous, productive, and engaged. We are developing new ways to assess specific individual needs and create mass-customized solutions. We are also developing new systems and standards for construction that will enable the delivery of more responsive homes, products, and services; these standards will make possible cost-effective but sophisticated, interoperable building components and systems. For instance, daylighting controls will be coordinated with reconfigurable rooms and will accommodate glare sensitivity. These construction standards will enable industrial suppliers to easily upgrade and retrofit homes to better care for home occupants as their needs change over time.
Media Lab Energy and Charging Research Station
Praveen Subramani, Raul-David Poblano, Ryan C.C. Chin, Kent Larson and Schneider ElectricWe are collaborating with Schneider Electric to develop a rapid, high-power charging station in MIT's Stata Center for researching EV rapid charging and battery storage systems for the electric grid. The system is built on a 500 kW commercial uninterruptible power supply (UPS) designed by Schneider Electric and modified by Media Lab researchers to enable rapid power transfer from lead-acid batteries in the UPS to lithium-ion batteries onboard an electric vehicle. Research experiments include: exploration of DC battery banks for intermediate energy storage between the grid and vehicles; repurposing the lead acid batteries in UPS systems with lithium-ion cells; and exploration of Level III charging connectors, wireless charging, and user-interface design for connecting the vehicles to physical infrastructure. The station is scheduled for completion by early 2012 and will be among the most advanced battery and EV charging research platforms at a university.
MITes+: Portable Wireless Sensors for Studying Behavior in Natural Settings
Kent Larson and Stephen IntilleMITes (MIT environmental sensors) are low-cost, wireless devices for collecting data about human behavior and the state of the environment. Nine versions of MITes have now been developed, including MITes for people movement (3-axis accelerometers), object movement (2-axis accelerometers), temperature, light levels, indoor location, ultra-violet light exposure, heart rate, haptic output, and electrical current flow. MITes are being deployed to study human behavior in natural setting. We are also developing activity recognition algorithms using MITes data for health and energy applications. (a House_n Research Consortium Initiative funded by the National Science Foundation)
Mobility on Demand Systems
Kent Larson, Ryan C.C. Chin, Chih-Chao Chuang, William Lark, Jr., Brandon Phillip Martin-Anderson and SiZhi ZhouMobility on Demand (MoD) systems are fleets of lightweight electric vehicles at strategically distributed electrical charging stations throughout a city. MoD systems solve the “first and last mile” problem of public transit, providing mobility between transit station and home/workplace. Users swipe a membership card at the MoD station to access vehicles, which can be driven to any other station (one-way rental). The Vélib' system of 20,000+ shared bicycles in Paris is the largest and most popular one-way rental system in the world. MoD systems incorporate intelligent fleet management through sensor networks, pattern recognition, and dynamic pricing, and the benefits of Smart Grid technologies including intelligent electrical charging (including rapid charging), vehicle-to-grid (V2G), and surplus energy storage for renewable power generation and peak shaving for the local utility. We have designed three MoD vehicles: CityCar, RoboScooter, and GreenWheel bicycle. (Continuing the vision of William J. Mitchell.)
Open-Source Furniture
Kent LarsonWe are exploring the use of parametric design tools and CNC fabrication technology to enable lay people to navigate through a complex furniture and cabinetry design process for office and residential applications. We are also exploring the integration of sensors, lighting, and actuators into furniture to create objects that are responsive to human activity.
Operator
Kent Larson and Brandon Phillip Martin-AndersonOperator is an AI agent what keeps tabs on how things are running around town, and tells you how to get where you want to go in the least effortful of ways.
PlaceLab and BoxLab
Jason Nawyn, Stephen Intille and Kent LarsonThe PlaceLab was a highly instrumented, apartment-scale, shared research facility where new technologies and design concepts were tested and evaluated in the context of everyday living. It was used by researchers until 2008 to collect fine-grained human behavior and environmental data, and to systematically test and evaluate strategies and technologies for the home in a natural setting with volunteer occupants. BoxLab is a portable version with many of the data collection capabilities of PlaceLab. BoxLab can be deployed in any home or workplace. (A House_n Research Consortium project funded by the National Science Foundation.)
Robotic Facade / Personalized Sunlight
Harrison Hall, Kent Larson and Shaun David SalzbergThe robotic façade is conceived as a mass-customizable module that combines solar control, heating, cooling, ventilation, and other functions to serve an urban apartment. It attaches to the building “chassis” with standardized power, data, and mechanical attachments to simplify field installation and dramatically increase energy performance. The design makes use of an articulating mirror to direct shafts of sunlight to precise points in the apartment interior. Tiny, low-cost, easily installed wireless sensors and activity recognition algorithms allow occupants to use a mobile phone interface to map activities of daily living to personalized sunlight positions. We are also developing strategies to control LED luminaires to turn off, dim, or tune the lighting to more energy-efficient spectra in response to the location, activities, and paths of the occupants.
Wheel Robots
William Lark, Jr., Nicholas Pennycooke, Ryan C.C. Chin and Kent LarsonThe mechanical components that make driving a vehicle possible (acceleration, braking, steering, springing) are located inside the space of the wheel, forming independent wheel robots and freeing the vehicular space of these components. Connected to the chassis are simple mechanical, power, and data connections, allowing for the wheel robots to plug in to a vehicle simply and quickly. A CPU in the vehicle provides the input necessary for driving according to the vehicle's dimensions or loading condition. The design of the wheel robots provides optimal contact patch placement, lower unsprung and rotational mass, omnidirectional steering, great space savings, and modularity, as the wheel robots can function appropriately on vehicles of different dimensions and weight. By "putting the whole car in the wheel," it is possible to separate production, service, and life-cycles of the mechanical components of the car from those of its architectural components. (Continuing the vision of William J. Mitchell.)
WorkLife
Jarmo Suominen and Kent LarsonThe nature of work is rapidly changing, but designers have a poor understanding of how places of work affect interaction, creativity, and productivity. We are using mobile phones that ask context-triggered questions and sensors in workplaces to collect information about how spaces are used and how space influences feelings such as productivity and creativity. A pilot study took place at the Steelcase headquarters in 2007, and in the offices of EGO, Inc. in Helsinki, Finland 2009. (A House_n Research Consortium project funded by TEKES.)