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[YesAuto Smart Car Link Evaluation] With the popularization of mobile internet technology and the improvement of vehicle configuration, more and more vehicles are equipped with in-vehicle interconnection systems with large screens and online services. In this context, the in-vehicle interconnection system has gradually become an important configuration of vehicles, and has even affected more and more people's car purchase decisions. But what exactly is an excellent in-vehicle interconnection system? How to “talk well” between people and vehicles? Consumers need to have an intuitive reference and comparison when buying a car. To this end, Autohome has launched the “Evaluation Standards for Autohome Smart Cars” (hereinafter referred to as the “standards”) to provide consumers with authoritative data and conclusions to help consumers make more rational choices that suit them. Below we are here to answer the questions that everyone is more concerned about in the form of question and answer.

Q: What is the basis for the formulation of the “Standard”?

A: Since the establishment of Autohome, it has accumulated in-depth experiences or tests on more than 200 in-vehicle systems, and reported on more than 100 key vehicle systems. On this basis, Autohome and the research teams of four well-known domestic colleges and universities jointly finalized the preliminary evaluation dimensions and standards. In the process of formulating standards, Autohome also conducted investigations and discussions with the R&D personnel of 4 in-vehicle system suppliers and more than 20 auto manufacturers, and further determined the detailed rules and specific evaluation methods of the evaluation standards. It can be said that this set of evaluation standards has achieved a relatively comprehensive coverage of the functions of the current mainstream in-vehicle interconnection systems, and scientifically predicts the development trend of the future in-vehicle interconnection systems.

Q: From which dimensions are the “Autohome Smart Car Association Evaluation Standards” evaluated?

A: The “Standard” will test the in-vehicle interconnection system from the four dimensions of human-vehicle interaction, function realization, service ecology, and communication favorability . It aims to have a comprehensive, clear and objective view of the in-vehicle interconnection system after detailed evaluation. Evaluation.

The first part-human-vehicle interaction (30% weight)

This part mainly tests the interaction between human and car, including but not limited to the central control screen, dashboard, physical/touch buttons and voice interaction system, etc. These are the hardware foundation of the human-computer interaction system, accounting for 30% of the total score . In this dimension, Autohome has fully tested the functions of the central control screen, instrument panel, voice interaction, physical/touch buttons and other equipment, and intuitively interprets the “good-looking” and “good-use” of the in-vehicle interconnection system for consumers. “The problem.

The second part-function realization (weight 50%)

The function realization part considers the richness of the functions of the in-vehicle interconnection system. The navigation, entertainment, parking imaging, communication, system functions, remote control, mapping functions and other innovative functions of the in-vehicle interconnection system are evaluated here. Evaluation items include functional satisfaction, functional realization effects, etc. Since the system function directly affects the owner's experience, this project accounts for the largest proportion of the total score, which is 50%. In this dimension, the “Standard” basically covers the mainstream functions of the current in-vehicle intelligent connection system, and through in-depth experience and testing of system functions, consumers have an intuitive understanding of the functional configuration of the in-vehicle interconnection system.

The third part-service ecology (weight 15%)

In addition to the convenience brought to us by cloud resources, many in-vehicle interconnection systems now also provide many service functions surrounding the vehicle on this basis. For example, through the App or the in-vehicle system, the maintenance appointment and status detection of the vehicle can be completed; The on-board near-field communication chip realizes sensorless payment, automatic refueling, and payment of parking fees; interconnecting the on-board system with intelligent hardware such as drones and smart homes to realize smart life, etc. This is also the development trend of future on-board interconnection systems. For this reason, the service ecological dimension has been evaluated for related functions in the “Standard”. The main evaluation dimensions of the current standard include life and payment, maintenance and rescue and hardware ecology, with a score of 15%.

Part Four-Communication Favorability (weight 5%)

Consumers all hope that the vehicle can have a natural dialogue with the owner like a friend. Nowadays, some vehicles can realize functions such as virtual intelligent assistant, natural sentence communication, and intelligent scene recognition through intelligent speech recognition, artificial intelligence algorithms and hardware devices. For this reason, the “Standard” has specially set up the evaluation dimension of communication favorability. In view of the current technology development status and popularity, the standard sets the proportion of communication favorability score to 5%, which not only takes into account the actual situation, but also encourages manufacturers Make bold innovations.

Q: What is the focus of the “Standard”?

A: The most important criterion for measuring a good product is whether it has a good user experience. For in-vehicle interconnection systems, this is particularly important-a good user experience not only includes the ease of use of the system, but also relates to the safety of driving. Therefore, in the “standard”, always put the quality of user experience in the first place. For example, in human-vehicle interaction, the evaluation standard considers the display effect of the vehicle screen and instrument, the layout of physical/touch button settings, and the menu level logic; in the implementation of functions, the evaluation standard not only focuses on the richness of functions, but also focuses on Regarding whether the function control method is convenient or not, these items are closely related to the quality of the user experience. Combined with many years of evaluation experience of senior editors, we will provide consumers with correct guidance in the display of evaluation results.

The interactive operation of various functions of the vehicle through buttons or touch controls often means that the driver's line of sight will be separated from the road, which poses a hidden danger to driving safety. The voice control of vehicle functions can solve this contradiction to a large extent. Therefore, the “Standard” has conducted a very comprehensive test for voice control functions, including voice control navigation, entertainment systems, air conditioning and other in-vehicle functions, as well as special test items such as the system's voice recognition rate, wake-up-free function, and natural semantic recognition. In addition, whether the UI design of the human-vehicle interactive system and the control of various functions are simple and direct will also have an indirect impact on driving safety. In this regard, the “standard” has a special focus on the convenience of high-frequency function operation and the level of operation. Assessment.

Regarding the abundance of vehicle functions, the “Standard” assigns various scores in a weighted manner based on the frequency of use and practicality of specific functions. For example, for high-frequency use functions such as in-vehicle entertainment systems and in-vehicle navigation, there are detailed evaluation items and standards in the “standards”, and the score occupies a larger weight in the function implementation dimension score.

In addition, in view of the innovative functions of some of today's in-vehicle interconnection systems, the “Standard” will also set corresponding bonus points in the corresponding evaluation dimensions according to the practicality of the functions and actual experience. It aims to encourage manufacturers to make bold innovations in the design of in-vehicle interconnection systems, and also reflects the forward-looking nature of this set of evaluation standards. The added score is in addition to the regular project score (full score of 100), a total of 16 points.

Q: What is the scoring and presentation method?

A: In the “Standard”, in order to facilitate consumers to have an intuitive impression of the various dimensions of the in-vehicle interconnection system being evaluated, a hundred-point scoring method is adopted in each evaluation dimension. The score of each dimension is multiplied by the weight and added together to finally get the overall score of the tested in-vehicle interconnection system. According to the score of the system evaluation, the final evaluation of the system is finally given in the form of stars. According to the score, the evaluator will give a level ranging from ★ to ★★★★★☆, allowing consumers to connect to the tested vehicle. The system has an intuitive perception.

Q: How to ensure the accuracy and objectiveness of the evaluation results?

A: First of all, there are detailed measurement standards for the hardware configuration and function richness of the in-vehicle interconnection system. For example, for the speech recognition function, there are 50 standardized test sentences for recognition testing, and finally scores are based on the recognition of the system and the realization rate of the function; for the car screen, it is scored based on the screen size and the PPI value of the screen; for the rationality of the control logic, Score based on the implementation steps of specific functions. This ensures that different testers can hold the same “ruler” in the evaluation, thereby ensuring the accuracy of the final score.

Secondly, for subjective evaluation dimensions such as human-computer interaction ease of use and interface design, detailed evaluation methods and scoring standards are also given in the evaluation criteria. For evaluation items that are more prone to disagreements and disputes, such as the aesthetics of the interface design, a jury composed of senior editors of Auto House was organized, and the final score was obtained after all members discussed and voted.

At the same time, for each specific item score, the score obtained is discretized and accurate to one decimal place according to the standard, and the score is divided into several grades. This avoids the accumulation of small differences in scores given by different evaluators, resulting in large score differences.

Q: Are the evaluation criteria set in stone?

A: With the continuous upgrading of hardware and the iterative update of mobile network technology, as a new thing, there is no doubt that in-vehicle interconnection systems are also undergoing rapid innovation and upgrading, and many new experiences, new scenarios, and new services continue to emerge. In this context, Autohome’s “Evaluation Standards for Intelligent Vehicles Association” will revise the standards in a timely manner based on the actual situation, including the modification of specific project weights and additions and deletions of evaluation items, to ensure that the evaluation standards keep pace with the times. The score after the upgrade of the standard is not comparable to the score before the upgrade. For popular in-vehicle interconnection systems, Autohome will re-test and update the latest score as soon as the evaluation standard is upgraded.

In summary, the launch of the “Smart Car Association Evaluation Criteria” is to allow consumers and users to have an authoritative and objective reference when choosing a car to buy, so that they can buy a car that is truly suitable for them. After the release of the standard, Autohome will continue to test and evaluate popular in-vehicle interconnection systems and key new cars on the market and produce reports. We also look forward to your valuable comments and feedback from users so that we can continue to improve. (Photo/Wang Xingyu, home of the car)