What is data decoding?
It is the abbreviation of electronic control unit, also known as driving computer. Simply put, it is the brain of the car and is responsible for controlling the normal operation of each component of the car. All status data in the car will be sent through the bus for data processing to control the associated units. Data decoding is to find such status signals in numerous bus data and analyze their meaning for customers to develop automotive electronics-related products.
Typical data development applications
, reversing radar/image. The car bus module detects the reversing start signal and uses this signal to activate the reversing radar or image.
, lock and raise windows. The car bus module detects the car's flameout signal and uses this signal to start the window-raising motor to achieve the automatic window-raising function after flameout.
, multi-function steering wheel. The car bus reads signals such as multimedia control and is integrated into the multi-function steering wheel. The multimedia can be controlled using the steering wheel.
, turn to automatic flashing lights. When the car bus module detects the steering wheel rotation angle signal, it automatically activates the turn signal.
, Automatically lock the car after leaving. When the car bus parses the flameout signal and does not detect the car lock signal within a certain period of time, the car will be automatically locked.
, The door automatically double flashes when driving. When the car bus reads the door opening signal, the double flashing lights are automatically turned on.
, handheld Bluetooth monitoring terminal. Transmit the car's kilometers, battery information, comprehensive fuel consumption and other parameters to handheld terminals (mobile phones) and other devices through Bluetooth.
, heads-up display. The car bus module detects the car's gear position, driving speed, engine speed and other signals, and displays this information simultaneously through a display screen
How to decode?
First of all, we will use a special car bus module detection equipment (such as BB or click to enter the details page) to read out a piece of data with the required signal and save the car bus module detection data. After the car bus module detection data is saved, professional engineers will use a special The car bus analysis data analysis software classifies and analyzes these data. After the car bus analysis data is parsed, we will make a function board to test the parsed signals on the car (for example: if the signal is analyzed to open the door, then the test version will be used when the door is opened. The indicator light lights up and goes out after closing the door). After the test is completed, the original signal data can be provided to the customer, and the user can use this data to further develop automotive electronics related products.
Some successful cases
A certain heavy engineering vehicle leasing manufacturer wanted to use remote terminals to monitor the operating status of the leased engineering vehicles. However, the vehicles were not developed by the leasing manufacturer themselves, and they had no control over the interior of the vehicle. The data and communication protocols are not understood.
Engineering vehicle rental
manufacturers put forward requirements: the car bus analyzes the status information of the engine and fuel pump in the vehicle, vehicle fault information, and alarm information, and sends the information to the terminal through R for monitoring.
Our company's technical personnel collect the required engineering vehicle bus data information on site, and save the data read from the vehicle bus through software and bring it back to the headquarters for analysis and simulation until the desired data is found. After decoding various status data, we provided the most original data to the customer, and combined it with the prepared R module to complete the effect required by the customer.
. A customer is a mobile phone development company. They want to develop a mobile phone software that can use mobile phone Bluetooth to view vehicle status information in real time. However, the mobile phone software development company does not have the knowledge related to bus communication and the ability to analyze in-car status data. ability.
The development company put forward the requirement: the car bus module detects the internal status information of the vehicle, such as: battery voltage, lock time, fuel consumption information, mileage information, water temperature, driving time and other status information, and sends it to the in mobile phone.
Our company's technicians consult relevant vehicle model information and rent a car to collect vehicle bus module detection signals. They save the collected data through software and bring it back to the headquarters for analysis and simulation until all customer demand status signals are found. After the decoding is completed, we provide the original data meaning to the customer, write the data information into the Bluetooth module developed by our company, and provide the interface function to the development manufacturer for calling. This mobile phone and Bluetooth hardware device is now available on the market.
. A customer is refitting car multimedia audio equipment. For models without navigation in the original car, if they want to install navigation, the original car's multimedia equipment must be removed and new multimedia equipment with navigation must be installed. Since the original car multimedia device is connected to the car bus and started through the bus, and the startup data of the two devices are different, dismantling the original multimedia and directly installing the new device will cause the new multimedia device to fail to boot.
Automotive multimedia manufacturers put forward requirements: find the original car multimedia start signal of the specified model, make a multimedia bus decoding box and install it into the car together with the new navigation, so that the navigation can perfectly adapt to the original car.
Our company's technicians check the bus directions of relevant car models and rent a car to collect car bus reading signals. They save the collected data through software and bring it back to the headquarters for analysis and simulation until they find out the navigation start signal required by the customer. We provide customers with the original power-on signal and test boards for customers to test. After receiving the original car navigation power-on signal, a new power-on signal is sent, and the newly installed navigation starts successfully.
Want to try decoding yourself?
If users want to try to analyze the meaning of bus data in the car themselves, they can use our company's BD device or r device. These two devices have stable performance, rich functions, and high cost performance. They are ideal tools for automotive electronics development, maintenance and testing.
Automobile bus module automobile bus testing service
This article mainly introduces the integrated BD analyzer of automobile bus module testing equipment. For more product information, please go to Shenyang Guangcheng Technology Co., Ltd. d. website to learn more, or call for consultation Customer Service Sales Personnel! Guangcheng Technology provides you with the best products and the highest quality technical services!
Product Features of Automobile Bus Module Testing Equipment D Analyzer
The designers of Guangcheng Automobile Bus Reading Equipment have a full understanding of various interferences, rich on-site debugging experience, and perfect hardware design. Improved the accuracy and reliability of data transmission. It greatly reduces the workload of network designers and system debuggers. Even complex systems will become very simple and reliable in the hands of ordinary designers.
Immersion gold process circuit board
It effectively reduces the noise voltage of the power line and ground wire, greatly improves the electromagnetic compatibility of the circuit board, and makes the product performance more stable and anti-interference stronger.
Car-specific BD interface
Standard BD interface. The end adopts magnetic coupling isolation technology to isolate high-voltage common mode signals on the bus, extending product life, improving system stability, and ensuring that data is not interfered with.
Industrial-grade high-speed main chip
The data is extremely real-time and has accurate timestamps, with an accuracy of microseconds. Can be used in equipment control that has strict requirements on response time.
Embedded design technology
Now the firmware can be upgraded remotely. Embedded real-time operating systems can provide simplified system call interfaces for specific applications. Such as trigger function
Performance characteristics of automobile bus module detection equipment D analyzer
Encryption protection: Using the industry's highest security software and hardware encryption technology to fundamentally eliminate the possibility of the program being cracked.
Performance guarantee: The patch manufacturer has passed certification, the equipment has passed EU certification, and has been tested by Sany Shinas Laboratory.
Extremely anti-interference: The working temperature has passed the d test, M test level: contact, air, group pulse immunity test level, surge immunity test level.
Car bus reading equipment D analyzer product function
Data transmission function
The car bus module detects or sends any car bus data, and any data sent can be read without losing frames. General sending mode and list sending mode can be set. The list sending mode is very powerful. The received data can be edited or directly added to the sending list. The data in the list can be sent simultaneously, in a loop, and in sequence. The sending list can be saved/loaded. . This function is very convenient for multi-node control testing, or when data needs to be sent in time sequence. )
Data analysis function
The automobile bus analysis device can classify the received data according to the set rules in real time, and can also save the received data as a text file to facilitate offline analysis. (The amount of bus data can reach frames/second. This function can classify these data according to the set rules, which greatly facilitates the analysis of data.)
DB file import, DB data cracking function
Support the latest The software supports the DB file import function, which can import encapsulated DB files. When the data is received, the meaning of each segment of the data can be displayed according to the content of the DB file. This function very intuitively displays which parameters of the car correspond to each segment of the frame data, which greatly facilitates the capture of car operating data, maintenance or troubleshooting. The DB function is an indispensable tool for automotive electronics.
Protocol parsing function
Can parse, D, protocol. (Users of automotive electronics who control imported equipment, drives, sensors, and do automotive bus reading will use these protocols. If you are not familiar with these protocols, then this function can help you speed up the project process)
Except In addition, the automotive bus module detection equipment also has data triggering functions, protocol analysis functions, program flashing and reading fault codes and operating parameters functions: (requires secondary development and can be customized), vehicle signal reading services, waveform Automatic bit rate identification function, bus analysis function: (very useful for analyzing bus interference and testing bus status), intelligent relay function, intelligent offline mode. (Only r supports this function), intelligent multi-segment filtering function and other functions, for details, please contact Chengdu Panfeng Technology Co., Ltd., phone
Automobile bus analysis equipment D analyzer supports secondary development
All model series support secondary development Secondary development, supporting D platform, including providing secondary development dynamic and static link libraries, providing development routines and routine source codes. The library functions are easy to use. Users can quickly apply our B devices to their own projects. If If you encounter problems during secondary development, we will provide technical support. If the user does not have development capabilities, he or she can customize it with us.
Provide example programs and source codes such as B,,,, b
Display of secondary development software for some customers
Monitoring software customized by our company for customers. It is used for multiple automotive bus module testing equipment to monitor multiple networks at the same time. The software integrates data sending and receiving functions, batch sending functions, digital filtering functions, data color setting functions, and basic bus configuration functions.
A protocol analysis software developed by a customer is used to monitor BMW car bus data. Even if the car protocol data is parsed in a standard format, the software can count the bus load in real time. It can further analyze the car bus module detection data by marking the script by itself. operate.
Chengdu Panfeng Technology is committed to the experimental development of automotive electronics and bus networks, and practical training and teaching equipment. It independently develops and provides product schematics and source programs for secondary development. Can simulate, record, simulate and send communication information! For more details, please consult
[Business Contact] Cai Peiying (Xiao Cai)
[Business Telephone]
[QQ] qq
[WeChat]
Year1
WhatsApp
