What CAN you do? ar cle, will help to read data from CAN bus of a vehicle. What is CAN bus? CAN (Controller Area Network) is a popular standard of the industrial network, focused on the integra on into a single network of various actuators and sensors, widely used in automo ve equipment. Almost all modern vehicles nowadays are equipped with so-called digital wiring - CAN bus.
Alexey Pinchuk sales manager (Asia, Australia and New Zealand) , JV Technoton Department – EUROINS ROMANIA When you decide to monitor parameters such as vehicle speed and fuel level, a reliable and proven solu on is to install a GPS tracker and a fuel sensor. If you need access to informa on such as engine speed, mileage, coolant temperature and other data from the onboard computer this task becomes very crea ve. If a vehicle already has all the necessary sensors, then you don’t need to install new ones, right? Almost all modern cars (especially when it comes to personal business class and expensive special machinery) are properly equipped with sensors, informa on from which is transmi ed to the on-board computer. The ques on is only how to access this informa on. The problem remained unsolved for a long me. But there are more and more effec ve solu ons now that solve a problem correctly obtaining such data as: engine speed and temperature, fuel level and consump on, informa on from tachograph and more. The solu on, which we talk about in this
PG.18 | Smart Automo ve | Jul - Aug 2017
Where did the task of reading data from CAN bus appear? The task of reading data from CAN bus appeared as a consequence of the task of op mizing vehicles opera on costs. In accordance with the typical requests of customers, vehicles and machinery are equipped with GPS monitoring and fuel monitoring systems (based on capaci ve or ultrasonic fuel level sensors). But prac ce has shown that customers are increasingly interested in more economical ways of obtaining data, as well as those that do not require serious interference into design, as well as in electric cars. That’s how appeared such a decision to obtain informa on from CAN bus. It has a number of advantages a er all: 1. Save money. Do not need to bear
significant costs for acquisi on and installa on of various sensors and devices. 2. Do not break warranty. Detec on by the manufacturer of third-party interference in the construc on or wiring scheme of the car leads to warranty losing. This is clearly not in the sphere of interests of vehicle owners. 3. Access to informa on from standard installed electronic devices and sensors. A certain set of func ons can be implemented in a vehicle, depending on the electronic system. Theore cally, we can access all these func ons via CAN-bus. This can be mileage, fuel level, door open / close sensors, temperature overboard and inside, RPM, speed, etc. What advantages and disadvantages does reading data from CAN bus lead to? Pluses: • Ability to work in hard real- me mode. • Easy to implement and lower costs of use. • High stability to interference. • Reliable control of transmission and recep on errors. • Wide speed range. • Widespread technology, availability of
If a vehicle already has all the necessary sensors, then you don’t need to install new ones, right? Almost all modern cars (especially when it comes to personal business class and expensive special machinery) are properly equipped with sensors, informa on from which is transmi ed to the onboard computer. www.telema cswire.net I www.coe-iot.com
