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Complete Game Information：

• 1
  、Basic requirements for new energy vehicle test engineers, how to improve themselves
• 2、Review of research on hardware-in-the-loop testing technology for pure electric vehicles
• 3 、Simulation Test-Full Analysis of HiL Test
• 4
  、Taobao announced that it will optimize "refunds only"
• 5、Altai data acquisition card realizes seamless connection with LabVIEW
• 6 、2024-2030 RF spectrum analyzer market development overview and prospects and trend analysis report in 2009

Basic requirements for new energy vehicle test engineers, how to improve themselves

Tool chain upgrade: Master AI-based automated testing tools to improve testing efficiency and coverage. Career direction: You can transform to a HIL test expert, test manager or electronic control system development engineer, or delve into specific fields (such as BMS HIL testing, ADAS HIL testing). Through systematic learning, practical accumulation and continuous updating of the knowledge system, new energy vehicle HIL test engineers can quickly grow into core talents in the industry, meeting the needs of automobile companies for high-precision and high-efficiency testing.

Try to optimize test cases (such as introducing equivalence class partitioning and boundary value analysis to improve coverage). Tools and platforms deepen the mastery of advanced functions: such as HiL model-in-the-loop (MIL) and software-in-the-loop (SIL) joint testing, and CI/CD integration testing. Explore emerging technologies: such as AI-based test case generation and the application of digital twins in HiL.

Job core values and demand background Industry-driven: The explosive growth of new energy vehicles has driven a surge in the R & D and verification demand for controllers (VCU, BMS, MCU, etc.). HIL (Hardware-in-the-Loop) testing is a key link, simulating real vehicle environment through hardware simulation, discovering design defects in advance and shortening the development cycle.

Practical projects: Consolidate the knowledge you have learned by participating in actual on-board testing projects. Practical projects can provide a real test environment and test requirements, which can help understand the practical application of in-vehicle testing. Employment prospects The employment prospects of vehicle-mounted test engineers are relatively broad. With the rise of the domestic automobile industry and the popularization of new energy vehicles, the demand for on-board test talents continues to increase.

Under China's "double carbon" goal, investment in the new energy vehicle industry chain has grown at an average annual rate of more than 20%, driving the expansion of the test equipment and service market. Technology Trend: Cloud HiL Testing: Achieve distributed collaboration and automated scheduling through cloud deployment to improve testing efficiency. Digital Twin: Combine virtual models and real data to achieve full life cycle testing (such as R & D, production, and after-sales).

Basic requirements for HIL test engineers: Bachelor degree or above is usually required, with majors concentrated in automotive engineering, mechatronics, mechanical engineering, control engineering, computer, electronics/electricity, communications and other related majors. HIL test system experience: You must have experience in building and using a mainstream HIL test system (such as ETAS, dSPACE, NI, Speedgoat, VT, etc.). Some positions require understanding of multiple systems is preferred.

Review of research on hardware-in-the-loop testing technology for pure electric vehicles

Review of research on hardware-in-the-loop testing technology for pure electric vehicles As the core development direction of new energy vehicles, pure electric vehicles are the key link in the research and development process. Hardware-in-the-loop (HIL) testing technology interacts with real controllers through virtual simulation, providing an efficient and low-cost verification solution for core electronic control units such as VCU, MCU, and BMS of pure electric vehicles.

dSPACE GmbH: Provides complete HIL test solutions covering hardware, software and services, and leads the market share in the powertrain testing field. ETAS: Relying on the background of Bosch Group, it has outstanding technology in the fields of ADAS and body electronic testing, and cooperates closely with mainstream automobile companies. Vector Informatik: With the software tool chain as its core, it has advantages in the fields of communication protocol testing and automated testing.

New energy vehicle HiL test is a testing method based on hardware-in-the-loop (HiL) technology. It is mainly used to verify the function, performance and reliability of new energy vehicle electronic control systems (such as battery management system BMS, motor controller MCU, vehicle controller VCU, etc.), simulate the actual operating conditions of the vehicle through a real-time simulation environment, and achieve highly integrated testing of hardware and software.

Simulation Test-Full Analysis of HiL Test

Simulation Testing-HiL Test Full Analysis of the definition of HiL HiL (Hardware-in-the-Loop) is a method of testing by combining hardware and a simulation environment. It significantly reduces development time and costs, combines computer simulation with actual experimental processes, and improves development efficiency. In HiL testing, actual controllers are combined with virtual objects (i.e. simulation models) to form another hardware-in-the-loop simulation of the system.

Hardware-in-the-loop simulation (HiL) is a technology that comprehensively tests a controller in an efficient and low-cost manner by connecting a real controller with a simulated controlled object. It is suitable for the development and testing of complex device controllers. In HiL testing, the real-time simulation hardware (HIL test cabinet) simulates the real controlled object as realistically as possible to effectively "fool" the controller into believing it is controlling a real object.

Test management software: Responsible for creating test sequences, managing test software, and generating detailed test reports. Configuration and test environment software: responsible for receiving incentive data and simulating display in real time. Testing and debugging: Including smoke testing, interface verification and closed-loop testing to ensure stable system performance. Problem tracking and fixing: Conduct regression testing through automated test case libraries and follow strict 5C principles.

Taobao announced that it will optimize "refunds only"

1. Optimize the core content Taobao's optimization of "refunds only" mainly includes two aspects: upgrading the abnormal behavior recognition model platform will strengthen the ability to recognize behaviors such as refunds only for high-frequency exceptions, returning short packages, and refunds for counterfeit goods. Ability to reject unreasonable claims. For example, for scenarios such as multiple refunds being initiated in a short period of time and no reason for refunds being received for several days, the system will use a data model to determine whether there is malicious "wool picking" behavior to protect merchants from losses.

2. Optimize the referee end and improve the fairness of the merchant side. Only the refund appeal process: After the merchant initiates the appeal, the platform will ask a third-party testing agency to conduct a random inspection of the product. If the test passes, the platform will compensate the merchant for the loss.

3. Taobao announced that it will optimize the refund-only strategy, enhance merchants 'after-sales autonomy based on the new version of the experience system, and reduce or eliminate after-sales intervention for high-quality stores. The relevant strategy will be officially implemented from August 9.

4. The circumstances in Taobao's new regulations that support buyers to "refunds only" mainly include situations where sellers violate regulations or damage buyers 'rights and interests. The details are as follows: If sellers receive too many negative reviews or violation records, if sellers accumulate a large number of negative reviews on the platform. Or if there are multiple violations (such as false publicity, fake sales, etc.), after Taobao determines, the system will support buyers to "refunds only". Such determinations are based on seller's historical behavior data and aim to regulate business behavior through credit constraints.

5. Optimize and relax the issue of "refunds only": Taobao is taking the lead in the industry to guide attention to and control the phenomenon of unreasonable "refunds only". Currently, it has intercepted more than 400,000 unreasonable "refunds only" per day. Strengthen the proof requirements for return goods: For consumers 'return applications due to product quality problems, the proof requirements will be strengthened, and the coverage of return certificates across the platform will be increased by 20%.

6. The core points of the new regulations are upgraded only to the refund-only policy: Taobao platform has upgraded the existing refund-only policy to provide consumers with more convenient refund services. This upgrade means that if certain conditions are met, consumers will be able to get refunds more quickly without having to go through a cumbersome return process.

Altai data acquisition card realizes seamless connection with LabVIEW

Altai data acquisition cards realize seamless connection with LabVIEW through ARTDAQ software. The specific implementation methods and functions are as follows: Software support and interfaces provide ARTDAQ development software: Altai launched ARTDAQ software for USB bus and PXI/PXIe bus data acquisition cards, embedded graphical API function interfaces compatible with LabVIEW, which can be called directly in LabVIEW.

Install the driver: First, you need to install the driver for the Altai acquisition card; Configure the acquisition card: After installing the driver, configure the acquisition card to communicate with LabVIEW; Create vi (virtual instrument): In LabVIEW, create one to communicate with the Altai acquisition card; Write a program: In vi, write a program to communicate with the Altai acquisition card.

The advantages of Altai Technology's drive upgrade to ARTDAQ are mainly reflected in the two aspects of realizing unified management of DMC and seamless connection with LabVIEW. The details are as follows: The advantages of realizing unified management of DMC break the traditional decentralized management model: Under the traditional method, each board needs to be equipped with independent drivers, demonstration software and interface codes, which have high management costs and complex maintenance.

First, it is necessary to confirm that the Altai E3046 temperature module supports Modbus TCP protocol. This is the basis for realizing communication. LabVIEW Configuration: In LabVIEW, use the DSC (Data Logging and Monitoring) module to create Modbus TCP instances. Configure the parameters of the Modbus TCP instance, including IP address, port number, etc., and these parameters should match the settings of the Altai E3046 temperature module.

2024-2030 RF spectrum analyzer market development overview and prospects and trend analysis report in 2009

1. Overview and Outlook Trend Analysis of RF spectrum analyzer market development from 024 to 2030 Market size and growth trend Global market: The global RF spectrum analyzer market size will be 74.2 billion yuan (RMB) in 2023, and it is expected to grow at a compound annual growth rate of 30%, reaching 19.7 billion yuan in 2029.

2. Spectrum analyzer maintenance is very promising. It is not only a high-value technical service industry, but also a clear career development path. Market demand and industry prospects Spectrum analyzers are core test equipment in the fields of wireless communications, radio frequency and microwave, aerospace, scientific research and experiments, etc., with unit prices ranging from hundreds of thousands to several million yuan. Its maintenance and calibration are rigid requirements, and the market prospects are stable and improving.

3. Combined with the calculation data of Technavio, Frost Sullivan, and Zhuoshi Consulting, it is estimated that the compound annual growth rate of the market size of the three major RF parts in China from 2021 to 2025 will be around 8%. By 2025, the market size of the three major RF parts in China will be close to 10 billion yuan. Note: The market size includes spectrum and network analyzers, and signal generators; the market size data is converted based on the average exchange rate of RMB and US dollar in 2021.

4. Market size With the rapid development of my country's high-end manufacturing and 5G technology, as well as the independent and controllable demand for the industrial chain brought about by trade frictions, the electronic measuring instrument industry has ushered in new development opportunities and the industrial scale has accelerated. Data shows that the size of my country's electronic measuring instrument market has increased from 305.4 billion yuan in 2019 to 377.8 billion yuan in 2023.

5. Spectrum analyzers are important tools for radio signal measurement and are widely used in electronic product development, production and inspection processes. Therefore, it is regarded as an engineer's RF multimeter and is widely used. The main function of the spectrum analyzer is to perform spectrum analysis, test and analyze the frequency and power of the signal, and display the analysis results in analog or digital form.