WSTS data shows that the global semiconductor market size has reached $555.9 billion in 2021, an increase of 26.2% year-on-year. The global semiconductor market is expected to exceed $600 billion in 2022. China remains the largest semiconductor market, with sales totaling $192.5 billion in 2021, up 27.1% year-on-year. At present, the downstream demand of the market is diverse, the purchase orders are scattered, and the upstream original factory is relatively concentrated, which is usually difficult to completely directly dock with the massive downstream demand. Therefore, there is usually a huge circulation market between the upstream original factory of electronic components and the downstream demand side, and distributors at all levels play an important role in it.
Source: WSTS
Especially the majority of small and medium-sized enterprises, they mainly focus on the demand for spot, orders to research and development, proofing, trial production or small batch production orders, orders are scattered, usually face high prices, high cost of search and communication, fake goods (including refurbished goods) is not easy to identify, difficult to one-stop purchase and other issues, the industry urgently needs supply chain information transparency, quality standards standards, service coordination and efficiency. In addition, small and medium-sized enterprises in the electronics industry, in product design, R & D proofing, small batch trial production, component procurement, mass production and other links, need to dock multiple suppliers / service providers, can not form a combination of optimal solutions, low efficiency.
Source: China Semiconductor Industry Association
More than ten years ago, the founding team of YunhanxinCheng observed the pain points in the procurement process of small and medium-sized electronic manufacturing enterprises, in order to break the information asymmetry in the procurement of electronic components and reshape the traditional service model of the electronic components supply chain, in 2011, Yunhanxincheng www.ickey.cn was officially launched as a vertical e-commerce company with industry-leading significance for electronic components. After 11 years of development, Yunhanxin City has developed from a single online procurement of electronic components to a one-stop online mall and electronic manufacturing collaborative "Internet +" platform by using the Internet, internet of things, big data and algorithms, providing efficient and high-quality supply chain services for a large number of medium and long-tail customers in the electronics industry.
This article will introduce in detail the development of digital technology of Yunhanxin City, showing the digital upgrading and reengineering of the upstream and downstream of the industrial chain using modern information technology and digital means as an industrial Internet, as well as the optimization and empowerment of traditional industries, so as to achieve the efficiency improvement of each node and help the digital transformation of the electronics industry.
First, from 0 to 1 innovation, "decoupling architecture technology evolution" to help online malls efficient services
1.1 Let the business run first
In 2011, Yunhanxincheng website was launched, as the first electronic component procurement mall established in China, focusing on small and medium-sized enterprise users in the electronics industry. Initially a monolithic technology architecture was used, with several web hosts plus a database server. At that time, the business demand was "fast", rapid response to business, rapid development, and rapid deployment! At the time of the rapid rise of domestic e-commerce, the system achieved millions of sales in the first year of launch, and then grew rapidly at several times the rate every year.
Business development is too fast, but the technical architecture is not solid enough, in the second half of 2014, the system bottleneck is prominent, which is manifested by frequent system downtime during the peak period of business. Whenever an accident occurs, colleagues in the business unit call it "afternoon tea time"!
The original mall architecture of Yunhanxin City
It can be seen that the technical architecture at that time did not separate the front and back ends, nor did it have the ability to scale out, and it could not be heaped if you wanted to pile up servers!
1.2 Technical architecture upgrade
In 2016, the technical team learned from the "complex system splitting and decoupling" practice popular on the Internet at that time to split and reconstruct the module of the original system. The advantage of this architecture is that when the system encounters bottlenecks, it only needs local governance, not the overall overthrow, and at the same time facilitates the division of labor and cooperation after the team is expanded. The upgraded schema is as follows.
New architecture for service decoupling
Using the same architecture, an internal supply chain operation system has been developed, including subsystems such as sales, procurement, warehousing and logistics, and marketing. These subsystems work together to achieve various positive and reverse business processes, covering the entire supply chain.
In the past five years, this set of technical practices has effectively supported the rapid development of the business.
Business systems
With the development of the business, Yunhanxincheng found that since it is "connected", it should extend the system capabilities to a wider range of suppliers and customers. Starting from the upstream suppliers, a group of suppliers with technical capabilities first completed the system layer docking, which greatly improved the efficiency of business operations, the original work of several people a day, now only a few buttons, the information data flow can flow accurately and smoothly between the internal and external systems. However, most suppliers in the electronics industry do not have IT technical conditions, so they designed a SaaS system SRM (Supplier Relationship Management), which includes functions such as inquiry and shipment management, and such suppliers are also included in the standard management. In addition to the procurement of electronic components, Yunhanxin City also provides PCBA (BOM, PCB and SMT) cloud factory and manufacturing-oriented design and other online collaborative services, forming a one-stop supply chain service platform for the electronics industry, which will be introduced later.
1.3 Application of Internet of Things technology
In addition, Yunhanxin city has also developed a warehousing WMS system suitable for the operation of electronic components supply chain, including handheld PDA, intelligent dispenser, lighting shelf and other self-developed hardware. Through the technical means of the Internet of Things, the daily operation of logistics personnel is efficient and accurate, and the delivery time of spot 2 hours is realized, which improves the production efficiency of enterprises that urgently need material production.
The illuminated shelves indicate the location of the product
Second, from 1 to N innovation, electronic manufacturing collaboration "Internet +" digital practice
2.1 Pain points of electronic manufacturing SMEs
Today's electronic manufacturing industry involves product design, R & D proofing, small batch trial production, component procurement, mass production, product life cycle services and other links. The bottlenecks commonly encountered by small and medium-sized customers in these links include: R&D bottlenecks with long design and development cycles, procurement bottlenecks in complex supply chains, manufacturing bottlenecks with customized diversification, management bottlenecks with high quality requirements, and continuous service bottlenecks throughout the product life cycle. Due to the long chain and many links involved, small and medium-sized customers need to dock multiple suppliers/service providers, and cannot form a combination of optimal solutions.
In addition to providing electronic component procurement services, Yunhanxin City also provides online collaborative services such as PCBA (PCB and SMT) cloud factory and manufacturing-oriented design, building a one-stop electronic industry service platform to provide customers with global optimal solutions.
2.2 Collaborative innovation of electronic manufacturing based on cloud factory, EDFM and HiBOM
At present, when digitalization drives industrial upgrading, the traditional electronics manufacturing industry is facing the above challenges and must be upgraded.
"Cloud factory", similar to cloud computing to dispatch the capacity of multiple factories, for the diversified needs of customers, quickly complete the best match.
Business architecture design of PCBA Cloud Factory
EDFM (E-Design for Manufacturing, online design for manufacturing) helps customers evaluate the constraints of manufacturing possibilities, efficiency and economy in the early design stage, realize the integration of design and production synergy, put the risk in front, and greatly save development time and cost.
Online EDFM
EDFM's two-dimensional display includes Gerber layer filtering, editing, hierarchical view, top view, bottom view switching, component position adjustment and other functions.
EDFM two-dimensional display effect
EDFM's 3D showcase, based on the RBP 3D rendering engine, is a drawing technology that combines JavaScript and webGL 2.0 to provide hardware 3D accelerated rendering for H5 Canvas.
EDFM 3D display
Based on the Yunhan search engine and algorithm, the intelligent selection HiBOM product can complete the manual 2 to 3 days of component selection and pairing in minutes, which greatly improves the efficiency of the matching order, which is described in detail below.
Third, from informatization to digitization, data value mining and stimulation
With the rapid development of the business, data continues to accumulate. Data is the core asset of YunhanxinCheng, in 2018, Yunhanxincheng proposed the strategy of "all business data, all data business", focusing on the main line of creating value for customers, realizing the closed loop of data and business, productizing the results of data analysis, continuously expanding business application scenarios, and improving customer experience.
3.1 Phase 1: Data Accumulation and Value Exploration
(1) Electronic component classification, attribute standardization and BOM intelligent matching
There are two scenarios in which customers are looking for materials. One is to get one of the parts of the device model name or name to do the search, such as STM32F103C8T6, customers often use "STM32F103" search; the other is to use the device attribute description search, such as "3.3Ω 0805 -5% ~ 5% 0.125W" to retrieve a chip resistor. In the first case, the use of mainstream search engine technology such as ElasticSearch or Solr, etc., select the appropriate word segmentation algorithm to index the commodity data, and then combine the sorting algorithm to effectively solve. However, the search for parameter descriptions involves the following two difficulties.
Classification and attribute standardization of electronic components
As early as 2014, Yunhanxin City realized the importance of commodity basic archival information. For example, the DAC7614P is TI's DAC (Digital-to-Analog Conversion) chip, and some of the core parameters of the DAC classification are as follows:
The core set of parameters corresponding to each device category is very important for component screening and alternative selection, especially localization substitution.
As of 2021, the system has accumulated tens of millions of SPU basic information bases.
Component basic repository architecture
Semantic analysis and key parameter extraction and transformation
Yunhanxincheng has realized a semantic analysis system for the electronic components industry, which can identify, extract and convert input parameters. Following the above example, the user input "3.3Ω 0805 -5% ~ 5% 0.125W", the system can identify the user in the search for chip resistance, package 0805, resistance value of 3.3 ohms, accuracy 5%, power 0.125W.
Based on the work results of a and b, in 2019, Yunhanxin city developed the HiBOM intelligent selection and matching tool, which completed the BOM matching work completed by traditional manual 2 to 3 days in online minutes, with an average analysis accuracy rate of more than 90%, which greatly improved the efficiency of customer selection and matching.
BOM matching result
(2) Customs data precipitation and intelligent classification of goods
Commodity customs declaration and classification work is a very labor-intensive link in the supply chain, and the electronic components model is tens of millions, which is a particularly serious problem. Therefore, Yunhanxin City used historical classification records to build a commodity customs declaration and classification system. In addition to covering the same models in stock, the system can also correctly classify new models of similar categories, reducing manual processing workload.
3.2 Phase II: Construction of data middle office
With the rapid growth of data volumes, data storage and computing power become bottlenecks. In 2017, Yunhanxin City began to build a big data platform, and tried the Greenplum database in the early days. However, with the growth of data types and magnitudes, there are problems such as inconsistent data quality, diverse data caliber, and repetitive work in the data development process. Drawing on the big data practice of mainstream Internet companies, offline digital warehouses have been built hierarchically. At the same time, the definition of various business indicators is unified, and various BI statistics are intuitively provided to business departments in the form of data boards and monitoring screens.
Hierarchical architecture of several warehouses
Example of monitoring a large screen
3.3 System support capacity
In order to achieve high availability of the system, YunhanxinCheng ensures that there is no single point of risk in the full link on the O&M architecture, realizes real-time synchronization of data to the off-site computer room, and through the distributed cluster, can quickly switch to the disaster recovery room to continue to provide services when a single computer room is down.
Yunhanxincheng has developed its own CI/CD (Continuous Integration and Delivery) system, integrating the collaboration of requirements, defects, tests, changes, and releases, with more than 400 monthly changes and releases.
DevOps
Fourth, build a solid digital technology foundation
With the rapid development of the Internet in the electronic industry, in order to meet the rapidly changing needs and cover a wider range of application scenarios, higher requirements are put forward for agile development iteration, intelligent level, and high availability of the system. With cloud nativeization, data and algorithm driven as the technical development direction, Yunhan Core City continues to launch high-innovation and wide-coverage intelligent applications, build a solid digital foundation, and contribute to the digital development of the industry.
4.1 Cloud nativeization
Two important steps in cloud nativeization are system architecture microservices and deployment containerization.
Containerization is a lightweight virtualization isolation technology that allows multiple independent spatial instances to run on a single core, called containers, that are not affected by differences in host environments.
Microservices are a technical solution for building complex applications. By building a microservices architecture on the container orchestration platform, it has the following advantages: (1) unified service registration and discovery management; (2) scalable architecture (adapts to dynamic changes in business scale, such as obvious changes in business days compared to weekends) ;(3) flexible publishing capabilities to support A/B testing; (4) highly available services; (5) current limiting circuit breakers (to avoid malicious traffic attacks); = 6 \* GB3 VALUE (6) link call tracing for fast fault location and link performance visualization; = 7 \* GB3 VALUE (7) lightweight.
Blue-green release with A/B testing
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Link call tracing system
These advantages of the container microservice system match the rhythm of business development requirements, and Yunhanxin City will gradually complete the upgrade of the technical base.
4.2 Data Driven
In addition to the existing offline digital warehouses, second-level quasi-real-time OLAP (Online Analytical Processing) and real-time streaming computing will also be an important part of the data middle office of Yunhanxin City in the future, which can realize second-level feedback of business operation indicators and abnormal hourly attribution of business operations, which can be used for real-time data analysis, anti-crawler and other scenarios.
Data middle office architecture
4.3 Algorithm Driven
The large amount of data accumulated by the business provides a foundation for the application of algorithms. Yunhanxin City will build a set of algorithm platform integrating data acquisition, feature engineering, model training and evaluation, and online operation of models.
Algorithm platform
Big data and algorithms will play an increasingly important role in improving the efficiency of business operations, such as domestic application recommendation, intelligent logistics, and collaborative manufacturing.
Editor-in-Charge: Elaine