Tag Archive: risk


Sensor fusion and data fusion with SafetyNex

SafetyNex is a real time driving risk assessment system. Of course, Driving Risk makes everyone think of car insurance and fleet management. And it is a natural application (deployment has already started). But it is important to note that Driving Risk is also a key notion for ADAS and Driverless car.

SafetyNex Data Fusion System

Indeed, Driving Risk happens when there is no adequation between Driving Behaviour and Driving Context. ADAS and Driverless act on Driving Behaviour :
. ADAS modifies Driving Behaviour : braking when the human driver did not, etc …
. Driverless car creates Driving Behaviour : there is still a driver called “artificial intelligence”.

Driving context is measured :
. Map Electronic Horizon
. Accelerometers
. Times to collision (front and rear)
. Number of vulnerables around (even on sidewalks)
. Atmospheric visibility / weather condition (fog, pouring rain, etc.)
. X2Car Data Streams (accident, weather alert, construction area, etc.

So you can now imagine that if you have the opportunity to ESTIMATE adequation between Driving Behaviour and Driving Context, then you can build much more relevant ADAS and Driverless Artificial Intelligence (adequation or inadequation).

You may notice that Driving Context is measured through heterogenous sensors and data streams. It brings no difficulty to SafetyNex that uses Fuzzy Sets and Possibility Theory to estimate adequation, givin a Driving output called Driving Risk (that you should want to minimize under constraints of mobility efficiency).

Then SafetyNex is actually a sensor and data fusion system (high level fusion), much more efficient than every fusion systems that you ever developed, because it generates a variable (Driving Risk) that is a KEY NOTION for driving and is EASY TO UNDERSTAND AND USE.

NEXYAD implemented a low cost version with only the first 3 inputs (more than 5,000 road safety rules to cope with the infrastructure dangers …) and is now implementing simple rules to take into account mobile context. Example: “the shorter the time to collision, the higher the risk”. And that’s it ! The knowledge based artificial intelligence of SafetyNex automatically does the fusion with the 5,000 rules. There is no need to “weight” the rules, as possibility theroy allows a fusion with every rule competing with the others … Elegant applied maths to a problem that most engineers describe in a so complicated way that it becomes impossible to solve.

We really encourage ADAS and Driverless engineers to come to us and simply integrates SafetyNex (low CPU consumption, easy real time, etc.) and then get NOW a proven sensor fusion and data fusion system that works. This gives ONE dimension of Driving Systemic Analysis items: Driving Risk, in real time.

Of course, if you do the systemic analysis you will find other dimensions of interest (we let you do that, we’ve done it for ourselves, trace of the military research past of NEXYAD founders).

SafetyNex is now under implementation by big ADAS OEM companies. Series deployment will start in 2018. We will be glad to help you being a part of it.


SafetyNex : Understanding the Concept of Risk

SafetyNex App is a real time driving risk assessment. We present below 3 videos to explain as simply as possible the concept of driving risk.

Luck doesn’t change the risk that the driver takes. It means that risk taken by the « lucky risky driver » is exactly the same than risk taken by the « unlucky risky driver ». It is possible then to detect risky drivers before they have accident (anticipation of costs). Once detected, it is possible to train them (prevention program).

Because SafetyNex driving risk assessment is done in real time, it is possible to alert the driver (when risk is higher than an acceptable value), and if driver slows down, then risk never rises at the red level. It is an onboard prevention system (ADAS).

Observation of accidents on a short period of time (3 months for instance) may not show any difference between « cautious driver » and « lucky risky driver » (both of them may not have accident). It is a big problem for UBI, and SafetyNex brings the solution as it anticipates accident (sooner or later the « lucky risky driver » will have a severe accident).

The Risky & Lucky Driver

The Risky & Unlucky Driver

The Cautious Driver

More info : http://www.safetynex.net


Interpretation of Risk Profiles with SafetyNex
A new paper by Nexyad



Lire la version Française

NEXYAD has been developing the smartphonte application SafetyNex which estimates the risk of driving in real time [1]. SafetyNex is both a driver assistance system (ADAS), which alerts the driver (vocal alert) before danger (When the risk increases too much), and a telematics system that records risk profiles and usage profiles.
Warning before the danger gives the driver time to slow down and avoid the accident. Road Safety studies show that SafetyNex can reduce the number of accidents by 20% [2]. This simple functionality is of interest of car insurers, fleet managers, and to car manufacturers.
SafetyNex also rewards the driver with cups (gold, silver, bronze) that can be transformed into money incentive (vouchers, etc.) so that the safe drivers stil have a daily interest to go on using SafetyNex. Indeed, tools that are not used over a period of time rarely have a real effect on the accidentology. SafetyNex is therefore distinguished from other products, on the one hand by its real time and driving assistance, but also for its “reward” side. SafetyNex informs the driver In real time when the risk exceeds a threshold of danger, than one can say that SafetyNex gives the risk in the hands of the driver first. The driver is in control of his/her risk.
Then SafetyNex distinguishes from all telematics products that ultimately provide information to the insurer or fleet manager, but not to the driver who feels rightly spied on.
Risk and usage profiles [3] are forwarded to managers who have an interest in minimizing risk and the number of accidents. This paper presents a simple way to interpret the risk profiles constructed by SafetyNex.

SafetyNex estimates risk of driving at every instant.
Since SafetyNex also measures usages, it measures among other things the durations and the number of traveled kilometers.
One can then construct the curve Risk (t) which is the risk at each moment, and also the curve Risk (km) which is the risk at each point of the route.

Risk Distance

Risk Distance rated

Let’s consider one or the other of those curves, it is easy then to cut the risk into slots:

Risk 03

It is therefore possible to calculate the total duration spent [resp the total number of km carried out] with a risk
between 10% and 20%, for example (or between 50% and 60%). The graph of these durations [resp number of km] for each range of risk (0% -10%, 10% -20%, etc.), looks like :

Graph 4

It can be seen that this graph can be seperated into three parts:

Graph 05

. A very high bar of near zero risk
. A shape of « bell curve » comparable to a gaussian
. Rising at the very end towards high risks
NEXYAD has run over 3,500 testers since June 2016, and has been able to interpret the shapes of these curves.

The large quasi-zero risk bar simply expresses the fact that overall the car is a safe mode of transportation.
The part that draws a bell curve has a more or less strong spread : we have noticed that experienced drivers have a narrow curve (repeatability of their driving style is high) while beginners have a huge spread (they can’t drive always the same way).
The centering of the bell curve (maximum likelihood) corresponds to the way in which the driver takes a controlled Risk : cautious beginners have a low maximum likelihood (they try to take as less risk as they can) while experienced drivers have a higher maximum likelihood : they know what risk level thay can cope with.
Finally, the values that go up to the right (tail of distribution of the curve in bell) correspond to the vocal alerts, that is to saycases where the driver has not fully understood that the risk is high. In other words, it is the lack of anticipation and misunderstanding of road.

SafetyNex’s risk profiles make it possible to understand the kind of driver you have :
. Cautious / not cautious (maximum likelihood of the bell curve position)
. Experienced / beginner (spreading of the bell curve)
. Lack of anticipation / very good anticipation (queues of distribution of the curve in bell)
Fleet insurers and managers therefore have all the information that they need to help the driver.
For example, within the framework of prevention plans, offering training adapted to each type of risky driving.
We validated this information by driving 3,500 testers, including beginners, experienced drivers, and also pilots (who in take risks appearance, but in reality have a very safe driving). This allowed us to give these interpretations of SafetyNex’s risk profiles.
With the deployment of SafetyNex to reduce the number of accidents, professionals structurally gain margin, and can use this margin to analyze profiles, segment them, and find the segments where it may be interesting to develop UBI (Usage Based Insurance) and real time pricing fleet.
This multi-functionality of SafetyNex makes it a unique and effective tool for managing driving risks.





SafetyNex Video Demo Onboard

Voir la version française de la démo

SafetyNex is a Smartphone APP that measures Risk taken by the Driver in Real Time and warns him before dangerous areas.

SafetyNex is available throuth an API (Android, iOS, Windows, Linux)


SafetyNex App Risk Profiles Analysis

Risk profiles estimated by SafetyNex: Analysis of profiles, and possible use to detect fatigue and hypovigilance of driver.

SafetyNex is a nomadic real-time risk estimation system. The system has been described in detail in previous publications [1] and uses the key concept of “near-accident” or “quasi-accident”, and is a result of 15 years of collaborative research with road safety experts and researchers.
The main competitive advantage of SafetyNex is that it allows, since the risk is estimated in real time,
to warn the driver (vocal alert), and thus to allow driver to avoid accident. Studies show that SafetyNex can reduce accident rate by 20% [2], which represents for insurers and fleet managers a consequent increase in margin [3].
But of course, SafetyNex also records usage and risk profiles. These profiles provide the behavior of the driver, or more precisely, his/her ability to regulate driving task consistently with danger. No need to record large volumes of data (accelerations, etc…) which in reality are not data (these are signals) for a possible back-office analysis, SafetyNex provides exactly the interesting data [4].
Below are examples of usage profiles and driver risk profiles.

. Read the entire paper
. Analyse des profils de risque en conduite estimés par SafetyNex (version française)


“Check NEXYAD Technologies for New Mobility Applications”
Automotive & Transportation Newsletter #14 is Available

NEXYAD Automotive & Transportation Newsletter #14, December 23th, 2016

Check NEXYAD Technologies for New Mobility Applications

Headlines :

– Demo video of SafetyNex : Smartphone App Onboard Real Time for Driving Risk Assessment
– Cercle LAB Symposium : new digital technologies for Insurance and Bank
– FinTech Community Symposium
– New Release of SafetyNex : Real Time Driving Risk Assessment for Car Industry and Insurance Companies
– Nexyad Technologies for Car Industry and New Mobility : SafetyNex – RoadNex – ObstaNex – VisiNex
– R&D project BIKER ANGEL (Driving Risk Assessment for Motorbikes) has been certified by the pôle FINANCE INNOVATION
– Business Trip to CES at Las Vegas

Read the Newsletter #14



Major release of the Real Time Onboard Driving Risk Assessment smartphone App SafetyNex.

Major release of the Real Time Onboard Driving Risk Assessment smartphone App SafetyNex.
Version 2_208 is available.
New functionalities and new HMI :

HMI SafetyNex

Read more : http://www.safetynex.net


R&D project BIKER ANGEL has been certified

R&D project BIKER ANGEL has been certified by the pôle FINANCE INNOVATION.
This project consists in making SafetyNex available for motorcycles.
Partners of this project are : HERE, IFSTTAR, NEXYAD, POINT CORE
NEXYAD is the project leader.
Submission of this project has been sent to FUI (Fond Unifié Interministériel – France).

Biker Angel - Label Finance Innovation

Le project BIKER ANGEL a été labellisé par le Pôle FINANCE INNOVATION.
Ce projet consiste à adapter SafetyNex pour les motards.
Les partenaires de ce projet sont : HERE, IFSTTAR, NEXYAD, POINT CORE
BIKER ANGEL est porté par NEXYAD.
Ce projet fait l’objet d’une demande FUI.


SafetyNex labellisé FINANCE INNOVATION

Nexyad SafetyNex, Onboard Real Time App of Driving Risk assessment, received Label Finance Innovation 2016 from world cluster Finance Innovation !

FINTECH COMMUNITY 4e édition à Paris le 7 décembre, le plus grand rendez-vous bi-annuel de rencontres entre le monde des financeurs et des sociétés de technologies innovantes. Nexyad, au travers de l’application de mesure temps réel du risque en conduite : SafetyNex, a reçu le Label Finance Innovation 2016 par le pôle de compétitivité mondial Finance Innovation.

Label Finance Innovation - SafetyNex

Plus tard dans la matinée, Gérard Yahiaoui, le P-DG de Nexyad, a pitché dans la catégorie Assurances FinTech et a récolté le plus grand nombre de votes de la part de l’assistance, recevant un autre prix à cette occasion qui permettra une exposition conséquente de SafetyNex.

Gérard Yahiaoui - Pole Finance Innovation

Gérard Yahiaoui en haut au centre


NEXYAD won the French Insurance “coup de coeur” (crush) Special Prize with our Driving Risk Assessment Smartphone App SafetyNex

30th Nov 2016, seven high-tech startups had to pitch in front of almost all French Insurance Companies. This was organized by the Cercle LAB (Laboratoire Assurance Banque), at ALLIANZ tower (Paris La Défense) : “colloque prospective annuel du cercle LAB”.

NEXYAD was introduced to Cercle LAB by the competitiveness cluster FINANCE & INNOVATION.
It was an interesting challenge and the jury had to pick only ONE startup from seven talented ones, to give the special prize “coup de coeur des assureurs”.

France Innovation - Cercle LAB - Nexyad SafetyNex
             Gérard Yahiaoui pitching at Allianz Tower                       “Coup de Cœur des Assureurs” Diploma

NEXYAD pitched on SafetyNex : a smartphone App for real time onboard driving risk assessment (with vocal alerts that warn the driver before a potential danger), that can reduce accident rate by 20%.

Winner : NEXYAD !!!

We thank all the insurers that came to this high tech day that gave a broadchurch view on research and development for Insurance applications (artificial intelligence, deep learning, iot, blockchain, telematics, …), we thank Pôle FINANCE INNOVATION & Cercle LAB.


Read more about SafetyNex

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