INTRODUCING STREETDRONE'S 10 POINT SAFETY APPROACH

Building on years of experience in automotive and motorsport sectors, StreetDrone has built a unique safety approach 

This safety approach sets out a framework to safely develop, test and deploy connected and automated vehicle technology in complex environments, including ultra-urban scenarios. 

Central to this approach, is defining a vehicle control backbone, that allows safety drivers and monitoring engineers undertake advanced testing and trials.

SAFETY FROM TYRES THROUGH TO DRIVER

At StreetDrone we have a safety approach that is second to none in the industry, and borne out of our vast experience in working in the automotive and motor racing sectors. Our "10 points" approach is unique and focused on ensuring that the safety driver is completely aware of any vehicle or software issues at all times.

 

This approach defines our drive-by-wire interfaces and its interaction with safety drivers

StreetDrone's drive-by-wire system envelops many of its key safety points:

1. No hacking or reverse engineering - all fitted drive-by-wire systems work in unison with existing vehicle systems. There is no hacking of CAN Bus or manipulation of ADAS features, which can have serious risk associated. StreetDrone instead fits its own specially designed actuator system, replacing driver.

2. Automotive actuators - complementing point (1), StreetDrone designates automotive grade components to build its safety critical architecture. This includes multiple channel ECUs, and sensor systems. 

3. Resistance to single point failures - the drive-by-wire control system is tolerant to all internal single point failures (this means any one component is not assumed to be reliable). This means multiple sensors and controllers to place the vehicle into safe state

4. Control clarity - the StreetDrone system operates at SAE level 2, with a trained safety driver in place at all times. Therefore the drive-by-wire has a clear system of lights and sound to indicate whether the automated system or computer is in control.

 

SAFE VEHICLE CONTROL

StreetDrone's drive-by-wire system envelops many of its key safety points:

5. Easy transfer to safe state - intuitive methods ensure easy transfer to safe state (all actuator powered off) if the safety driver needs to disable the system. This includes pressing any pedal, numerous buttons and applying a torque to the wheel

6. No accidental actuation  - an arm and engage system with a clear start-up protocol prevents accidental commencement of any autonomous mode operation. 

7. Open data interface - access to all key data including status of ancillaries ensures full control of the vehicle, and allows easier compliance with testing code of practices, laws and guidelines.

SAFE COMMUNICATION AND OPERATION

StreetDrone's drive-by-wire system envelops many of its key safety points:

8. Communication checks  - StreetDrone systems regularly checks the status of the CAN communication to ensure that there is no disruption. In addition, a rules-based system notifies the driver of error if actuator demands would cause vehicle instability.

9. Safety Drivers Knowledge and Training - ensuring that all safety drivers have a thorough knowledge of the low level control system, its behaviour and the technology being tested (be it open source or otherwise) as part of an extensive test routine carried out in controlled environments.

10. Starting low and slow - commencing all trials in slow speed, controlled environments before incrementally increasing operational design domains to keep risk to absolute minimum.