monitoring Archives : NEXYAD

L’accident mortel en Tesla aurait peut-être pu être évité

L’accident mortel en TESLA aurait peut-être pu être évité grâce à des modules logiciels de NEXYAD

par NEXYAD, août 2016

Les passions se déchaînent autour de la question des véhicules autonomes, ou semi-autonomes. Récemment, une personne a perdu la vie dans son véhicule TESLA alors qu’il était en mode auto-pilote.
NEXYAD a étudié la sécurité routière pendant une vingtaine d’année, et nous donnons quelques éléments de réflexion sur ce type d’accident.

Les chaînes de traitement de l’information des systèmes auto-pilote, driverless, etc… allant de la perception de l’environnement jusqu’à la prise de décision et à la gestion automatique des actionneurs, sont généralement très bien conçues, et mettent en œuvre des modules performants. Mais cela ne suffit pas à rendre nul le risque d’accident. En effet, pour traiter ce risque, il manque une chaîne parallèle (et indépendante) de « monitoring ».
C’est pour bien comprendre cette nécessité, il faut tout d’abord appréhender le niveau de complexité d’une scène routière vue par une caméra.

Le livre blanc à lire ici

Accident fatalities in a TESLA car

Accident fatalities in a TESLA car might have been avoided by using software modules of NEXYAD :
the time for monitoring circuit has come.

Version française

By NEXYAD

Processing circuit, informing auto-pilot systems, control, etc … from perception, data fusion, decision-making, and automatic control of actuators, are usually very well designed, and based on high-performance modules. But unfortunately, this is not enough to void the risk of accidents. Indeed, for the treatment of this risk, it lacks a parallel circuit (parallel and independent) called “monitoring” circuit.
To understand this need for a monitoring circuit, one must first understand the level of complexity of a road scene viewed from a camera.

The variability of road scenes is actually much more than what a normal person comes to imagine. Indeed, a color image, which has eight bits for each colors (then, 24-bit, as there are 3 colors) may encode 2²⁴ different color levels per pixel (more than 65,000 different possible values). HD video has more than 2 million pixels.
This means that the matrix of HD 8-bit color image may encode more than 65 000^{2 000 000} images !
This huge number is simply unimaginable.

Read the entire paper

Accidented Tesla
http://www.nextinpact.com/news/100804-accident-mortel-tesla-model-s-roulait-trop-vite-enquete-se-poursuit.htm

In-Car Sensors Put Insurers In The Driver’s Seat

By Teresa Meek

Jeff Branson, the police chief of Mattoon, Ill., has been tracking a lead-footed driver for nearly two years.

A couple of times, he’s caught the guy doing 70 in a 55. He’s confiscated the vehicle twice but never issued a ticket.

The speed demon just happens to be his 18-year-old son Chase. Branson monitors his son’s driving habits with a device provided by auto insurance provider State Farm that plugs into the car’s data port and collects information on mileage, braking, turns, acceleration, and what time of day Chase is driving. The device uploads the data to the company, which uses it to rate drivers and offer them a possible discount under the company’s “Drive Safe & Save” program. Information about Chase’s specific location and speed is sent to Branson through an optional monitoring program associated with the device but is not sent to the insurance company.

In-car sensors, or telematics, have become business as usual for major auto insurance carriers like State Farm, Progressive PGR +0.00% and Allstate ALL +0.00%, which say customers appreciate the opportunity to review their performance online and receive discounts on their insurance. The palm-sized devices plug into a car’s data port, the same spot mechanics use for vehicle diagnostics. (All cars made since 1996 have the ports.) The devices record information about mileage and speed, which is then used to calculate data about acceleration and braking trends. Some systems also have GPS capability that is relayed to insurance companies for research purposes — or to owners like Branson who opt for driver monitoring.