Imagine that when you are ready to drive on the road, the built-in camera recognizes the identity of the driver and the passenger, the seat is automatically adjusted to fit the passenger's most comfortable position, and the navigation and entertainment systems are also converted into your preferences, and Automatically seamlessly connect to your smartphone and tablet and download music or TV shows. At the same time, you don't need to touch the handheld device screen, just use the existing equipment on the car to control the applications on the phone, such as answering calls, watching movies, listening to mobile music. When driving on the road, the navigation system provides real-time road conditions and route guidance, and monitors vehicle condition diagnostics at any time to prevent potential safety concerns; when gasoline or battery power decreases, the car searches for the nearest (even the most cost-effective) fuel. Station, and all this is because of the superior performance of the car infotainment system, in order to make smart driving really on the road. The In-Vehicle Infotainment System (IVI system) has become an innovative on-board computer application, making transportation no longer just a migration between organisms. The torrent of information will permeate the various contexts of human life. . Many well-known auto manufacturers not only realize that the in-vehicle infotainment system will be the key application for the future development of the auto industry, but also clearly understand that the unique and highly-used in-vehicle infotainment system is bound to become a major selling point for the differentiation of its own products. Different from the past, you can only listen to radio, music and watch TV in the car. The development of innovative applications also indirectly means the challenge of technology integration. In the future, the car entertainment system installed in the global automotive industry will gradually work with smart phones and other mobile devices. Communicate the connection. According to a report by research firm Juniper Research, by 2016, more than 90 million vehicles will be able to further integrate with mobile phone applications in addition to being able to go online with the car, and comprehensively enhance the added value of the car.
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IVI system is poised for unlimited business opportunities
In a study conducted in March this year, IHS Automotive Research pointed out that as users from the beginning of the IVI system have a "dispensable" mentality gradually turned into a hope that vehicles can build IVI systems, by 2018 worldwide In-vehicle IVI semiconductor revenue will exceed US$8.5 billion; among them, one of the most important IVI system markets in the future, China, is estimated to have a market of US$5.3 billion by 2018, accounting for more than half of the global market. . In its April study, IHS predicted that revenue from global automotive cable and wireless networking and networking technology-related semiconductors will increase from $430 million in 2011 to $840 million in 2018. In addition, because of the rise of the IVI system, it has also indirectly led to the boom of related industries. For example, only 2% of the cars sold in 2012 are equipped with Head-Up Display (HUD), but it is expected to reach 2020. It will increase to 9% in the year, that is, about 9 million cars will carry HUD.
In addition, the two main factors that contribute to the increase in IVI system profits are:
(1) The number of cars sold worldwide with IVI systems is expected to be twice as high as it is by 2018, and the increase in demand for Light Commercial Vehicles (LCVs) in China is a big boost;
(b) In 2018, the average profit of an in-vehicle infotainment system will exceed $200. In the face of the market with unlimited business opportunities, in addition to paying attention to the latest development and application of this technology, related manufacturers need to have unassailable products to meet their opponents in order to stand out in this competition.
When a car is no longer just a function of transportation, but through IVI as an intermediary to communicate with various electronic devices to become a new era of artificial intelligence products, related hardware, software compatibility and interoperability Sexual verification will increase the demand and shape, so as to ensure the perfect function of the function, quality and performance of the car infotainment system. In order to make the above-mentioned automotive applications have the best quality and performance, the technical protocols and network connection functions between the relevant smart phones, applications, information content and in-vehicle entertainment systems must be carefully regulated and authenticated. Communicate effectively with cars through smart phones.
IVI System Verification Program ensures complete online functionality
The more advanced the in-vehicle infotainment system is, the more complex the functions are. In addition to the basic navigation system, video streaming, application software and storage technology, the technology developed by the different alliances. Integrating terminal devices, interoperability between different brands and types of devices, and compatibility of applications affect the overall performance of the IVI system, and influence consumers' willingness to purchase. As one of the professional testing laboratories, Allion has also been exposed to many related test verification requirements to ensure that the IVI system can work with other brands of soft and hard devices. Therefore, in this article, we will introduce three mainstream technical specifications that are connected in series with different handheld devices and vehicles, and because the certification requirements and safety standards for automotive-specific products are much stricter than those of general electronic products, especially In-vehicle storage products must be mechanically and physically tested to ensure their stability, such as pressure, temperature, and humidity. Therefore, special environmental tests for vehicle specifications are also introduced.
â— Wi-Fi Miracast
The Wi-Fi Alliance developed Wi-Fi Miracast technology based on Wi-Fi Display specifications and launched the Wi-Fi CERTIFIED Miracast certification program to ensure that products supporting this technology retain the ease of use common to Wi-Fi CERTIFIED products. Interoperability and security, users can enjoy the video or music on the mobile phone through the car entertainment system, and connect the audio and video products in real time. As shown in Figure 1, products using this technology can be connected without any external Wi-Fi network or connector; in other words, Wi-Fi CERTIFIED Miracast certified devices have Wi-Fi direct connection capability, no need Use an existing network AP. The user can completely play the captured photos, videos or audio and video streaming services on the network on the screen of the car through the mobile phone.
According to the Wi-Fi Alliance, "Wi-Fi CERTIFIED Miracast uses many well-known and trusted Wi-Fi technologies, including Wi-Fi CERTIFIED n (improving throughput and coverage), Wi-Fi Direct (device-to-device connection) ), Wi-Fi Protected Access 2 (WPA2, security protection), Wi-Fi Multimedia (WMM, traffic management), and Protected Setup, etc.. Since the Wi-Fi CERTIFIED Miracast certification program is built on the above technical standards, Vendors' Wi-Fi products must pass Wi-Fi CERTIFIED n, Wi-Fi Protected Access 2, and Wi-Fi Direct standard tests when they want to get Wi-Fi CERTIFIED Miracast certification.
â—Bluetooth
According to ABI Research, it is estimated that by 2017, 60 million cars will be equipped with Bluetooth technology, and the market growth rate has increased by 47% compared with 2013. The Bluetooth technology developed by the Bluetooth Association was originally created for the purpose of hands-free communication and is one of the short-range wireless transmission standards currently widely used around the world. Through Bluetooth technology, the contact data of the mobile phone book will be synchronized with the car, and it can be used to avoid dialing, connecting and transmitting messages in the car. It can also use the large screen of IVI to browse the web and play music through the mobile phone networking function. . However, for the highly competitive smart phone market, new machines will be launched to meet consumers in about half a year to one year. The operating system (OS) of the mobile phone will update the software version in about 3 to 6 months, but the IVI system. It takes about 3 years of development time and the market life cycle is up to 10 years. Therefore, manufacturers should ensure the Bluetooth compatibility between the handheld device and the car when developing the IVI product, especially the interoperability between the old and new versions. In the future, product compatibility issues will have higher recycling costs and customer complaints. For example, common compatibility issues with mobile phones and cars occur in the following situations: three-way calling, voice control, phone book reading, dialogue record redialing, etc. These behaviors are most likely due to the Bluetooth version between devices and The supported profiles are different, which leads to compatibility issues and affects consumers' willingness to buy.
When developing Bluetooth technology products, in addition to the Bluetooth Qualification Conformance Test, the interoperability and compatibility between different types of products is also the most important point of Bluetooth technology. Therefore, a complete verification solution is needed, for example. Pairing tests with other products such as cameras, laptops, smart phones, etc. With many years of experience and technical strength, Allion regularly collects and purchases the latest compatible peripheral devices and test environment, and can provide the most professional Bluetooth quality certification testing services to help operators verify whether the products can be compared with other brands in the industry under certain circumstances. The software or hardware is functioning properly to ensure the full functionality of the Bluetooth technology.
â—MirrorLink
Due to the booming in-car entertainment system, manufacturers of consumer electronics devices (Nokia, Samsung, LG), automotive industry leaders (Daimler, General Motors, Honda, Hyundai, Toyota, Volkswagen) and system suppliers (Alpine, Panasonic) The co-founded organization, the Car Connectivity Consortium (CCC), came into being. MirrorLink is a trademark of CCC and is an emerging technology standard developed for in-vehicle interconnection transmission. The purpose is to enable all kinds of mobile devices to be easily and quickly interconnected with IVI systems through a unified connection standard. The in-vehicle communication environment of the gap provides the user with the simplest and intuitive experience.
MirrorLink is designed to allow users to use the phone's USB, Wi-Fi, Bluetooth or Universal Plug and Play (UPnP), Remote Network Computing (VNC) and real-time streaming protocols. (Real-Time Protocol, RTP) and other technical standards, can establish connections and information streams with the IVI system, improve the networking capabilities of the IVI system. Several car manufacturers have adopted their own IVI technologies, such as BMW's ConnectedDrive, Ford's SYNC and Toyota's Entune. In the future, when driving, you can view the mobile phone screen without distracting, and you can display the easy-to-use user interface on the car screen. You can also control the phone through the buttons or voice on the steering wheel or the dashboard. Perform control functions corresponding to mobile phones, such as dial-up calls, video playback, navigation, and applications.
In addition to strategic alliances with mobile phones and auto industry, MirrorLink is also actively engaged with mobile application developers. Because of the safety of driving, MirrorLink's specifications for applications (APP) are relatively strict, and the development specifications are divided. There are two major points: (1) Display interoperability, which stipulates that the image size, resolution, and applicability of the application must meet the requirements. (2) User interface control, including the panel. The single touch and the rotary/switching interface design on the top must comply with the association's specifications.
In addition, the information provided by the application can not affect the driving safety. The size of the text on the screen should be at least 5 times 7 (aspect ratio) matrix to avoid difficulty in identification. It is also forbidden to use the application automatically or manually. Sliding the menu function and driving under reasonable conditions should be able to return to the original system state from the cut screen to avoid danger. Therefore, when developing MirrorLink-specific APPs, related vendors cannot directly port the contents of handheld mobile devices. They must comply with the standards of the alliance to increase the functions of the IVI system. The application categories covered in the future are not limited to entertainment and audio and video. It can create new application services for categories such as driving safety and road notification.
â—Car specification environmental test
The vehicle specification product verification is divided into a Climatic Environment Test, a Mechanical Environment Test, a Chemical Environment Test, and an Electronic Environment Test. These four different environmental tests are described in this order.
1.Climatic Environment Test
Unlike ordinary consumer electronics, cars have more opportunities to exist under different temperature-changing conditions, such as driving in a hot desert or in ice and snow, so a series of temperature tests are performed on IVI system storage devices. Common examples are: (1) The Temperature Shock Test contains tests for different temperature differences from -40 ° C to 90 ° C and from 90 ° C to 25 ° C. (2) Temperature Gradient Test, designed for temperature transition environment testing from 25 ° C to -30 ° C or -30 ° C to 85 ° C according to the rigor of each vehicle. (3) Power Thermal Cycle Endurance (PTCE), which tests the impact of thermal energy generated by the vehicle's travel on the performance of the vehicle. (4) Altitude Environment Test, which can measure the performance of storage equipment under different temperature and pressure conditions at different altitudes.
2.Mechanical Environment Test
The road is dangerous and it is difficult to ensure that it will not be subjected to external impact. Therefore, the Mechanical Shock Solution is required to simulate the body's integrity and safety when it encounters different gravitational accelerations such as 70G and 120G. Sex.
3. Chemical Environment Test
Exposed cars, in addition to being exposed to air pollution, acid rain will also affect the car body, and it is more likely to indirectly erode the car's pipeline. Therefore, corrosive gas tests are required to allow the car body, storage equipment and connected lines to accept nitrogen dioxide. Different chemical gases such as (NO2), chlorine (CL2) and sulfur dioxide (SO2) have been tested for several days.
4. Electronic Environment Test (Electronic Environment Test)
The Voltage Drop Test can test the voltage loss of the measured object under constant current conditions. It can check whether the general switch contacts, relays, wire harnesses, crimp terminals, connectors and other related products are in actual use environment. Various electrical performance failures can occur. In addition, because the IVI system uses Wi-Fi, Bluetooth and mobile phone networking functions, in order to ensure that the high frequency does not interfere with each other, the Electromagnetic Compatibility Test (EMC Test) is required to verify the storage device of the car and these high The noise of the frequency interface during operation does not interfere with each other and affects performance.
In addition to the above techniques requiring complete verification, User Convenience and User Experience (UX) are the most direct experience for users of "Smart Cars", so they need professional The technical team designs User Experience Design (UXD) and provides cross-platform verification to ensure that the IVI system can truly represent the performance consumers expect.
Observing the applications open by the current car manufacturers can be divided into the following three categories of services: music broadcasting, life information and content integration, but we believe that as the market matures, it will attract more consumers, and then the car factory The system standard will be opened and the cooperation mode will be more open. It is expected that the content service providers will lower the threshold for entering the automotive market, attracting more car manufacturers and developers to enter the market one after another, forming a win-win situation. According to the requirements of automobile manufacturers and product features, accurately designing the most suitable test plan and integrating all the solutions, we can target the details of the in-vehicle infotainment system, its related technical standards, and identify potential risk assessment and problem causes. With the warming of market effects, the scalability and interoperability of in-vehicle infotainment systems is definitely a key factor for successful future promotion. To ensure the rapid development of your in-vehicle infotainment system, Test & Design designed by Allion Definitely your best choice.
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