Recently, Beijing Zhixin Microelectronics Technology Co., Ltd. (hereinafter referred to as "Zhixin Company") jointly developed a "new sensing cable" with State Grid Jiangsu Electric Power and other units. Relying on advanced Cable Machinery and High-Quality Cable Production standards, this cable has completed a 120-kilometer large-scale application in Jiangsu, achieving dual-dimensional online monitoring of underground cable "identity + temperature" and setting a new benchmark for High-Quality Cable Production in the power industry.
New Type of Perception Cable Sectional View
Cables are the "blood vessels" of the power grid system, and their health status directly affects the safety of the power grid. However, traditional underground cable management has long suffered from four chronic problems: difficulty in quality supervision, difficulty in construction control, difficulty in precise fault location, and difficulty in real-time operation monitoring. These pain points not only restrict the efficiency of power grid operation but also put forward higher requirements for Cable Machinery and High-Quality Cable Production processes.
In order to overcome this challenge, in 2021, Zhixin Company formed a special team with United Nations Grid Jiangsu Electric Power. While breaking through core sensing technologies, the team also collaborated with equipment manufacturers to optimize Cable Machinery parameters, ensuring that the integrated production of electronic tags and cable cores meets strict High-Quality Cable Production standards. After a year of key technological breakthroughs, they successfully developed a new type of sensing cable that integrates identity authentication and temperature sensing in June 2022. This product implants RFID (Radio Frequency Identification) electronic tags with temperature measurement function — a process that relies on high-precision Cable Machinery to achieve stable implantation without damaging cable performance. It is equivalent to laying "neurons" for the "blood vessels" of cables, fundamentally solving the industry pain points of traditional cables relying on manual inspection, low efficiency, and inability to capture temperature changes in real time.
Four Innovations Support the Construction of Cable Digital Twins, Driven by High-Quality Cable Production Concepts
The new sensing cable achieves dual control of underground cable "identity + temperature" through four core technologies, and each link is guaranteed by advanced Cable Machinery and strict production standards:
1. High-precision "body temperature monitoring chip" — self-developed passive RFID temperature measurement chip, with an accuracy of ± 1 ℃ in a wide temperature range of -40 ℃ ~ 150 ℃. During the cable extrusion process, the High-speed cable extruder ensures uniform coating of the chip's protective layer, enabling the chip to sensitively capture temperature anomalies and improve the ability to identify hidden dangers.
2. High resistance to "identity tag core" — The electronic tag adopts a microstrip structure anti-metal design, combined with a PTFE flexible antenna substrate, which is resistant to metal interference, stress, and high temperature, with a recognition distance of up to 3 meters. Specialized Cable Machinery is used for precise lamination and fixing of the tag, ensuring its stability in cable bending and long-term operation, suitable for cable full-scene applications.
3. National Security Protection — Built in National Security SM7 algorithm to prevent data cracking and tag cloning, ensuring that identity and data are "one chip, one secret". In the production process, Cable Machinery with intelligent detection functions is used to verify the algorithm integrity of each cable, strictly controlling product quality.
4. Full chain control system — Build a cable lifecycle management system with "one code connection and full chain traceability". From raw material input to finished product output, Cable Machinery is connected to the management system to record production parameters in real time, achieving digital traceability and lean management from production to scrap, and fully implementing High-Quality Cable Production requirements.
International Leader Injects 'Core' Power into New Power Systems, Relying on Mature Cable Machinery Industrial Chain
At present, the new sensing cable has been selected for the "Guiding Catalogue for the Promotion and Application of the First (Set) Major Technical Equipment (2024 Edition)" and the "Beijing 2024 Third Batch of First (Set) Major Technical Equipment Catalogue" by the Ministry of Industry and Information Technology.
The relevant achievements have also been tested by authoritative third-party organizations such as the China Taier Laboratory of the China Academy of Information and Communications Technology, the Commercial Cryptography Testing Center of the State Cryptography Administration, and the Testing Laboratory of the Shanghai Integrated Circuit Technology and Industry Promotion Center, and have been identified by expert groups as "internationally leading level". This achievement is not only a breakthrough in sensing technology but also a result of the joint improvement of Cable Machinery and High-Quality Cable Production levels in China.
The new sensing cable has been applied for 120 kilometers in Jiangsu, further verifying the reliability and stability of the product in large-scale application scenarios. The stable performance of the cable is inseparable from the precise processing of High-speed cable extruder and the strict quality control of the entire production line, truly achieving full-chain digital management and effectively solving the problems of underground cable quality supervision and operation monitoring.
In terms of industrialization, relying on China's mature Cable Machinery supporting system, the new sensing cable has achieved mass production in many well-known cable production enterprises in China, with the ability to deliver on a large scale. High-speed cable extruder and other advanced equipment ensure production efficiency while maintaining product consistency, laying a solid foundation for large-scale promotion. After large-scale promotion and application, it will effectively help the digital transformation of power grid infrastructure and further enhance the level of safe operation of the power grid, and also promote the upgrading of the domestic Cable Machinery and High-Quality Cable Production industries.