Page 71 - 《橡塑技术与装备》英文版2026年3期

INTELLIGENT AND DIGITAL APPLICATIONS

carts, the management efficiency of the carts can be greatly applications. In some typical data collection and control
improved. High-precision positioning information can also scenarios, the speed requirement for a single terminal is a
be integrated and linked with subsystems such as 5G high- few hundred Kbps, with a maximum of no more than 10
definition cameras, safety production systems, access control Mbps, and the latency requirement is not stringent, just a
and security systems, and electronic fences. When abnormal few hundred milliseconds. In these scenarios, using standard
personnel are detected in dangerous areas, an alarm will be 5G industrial terminals with upload and download speeds of
automatically generated, and the cameras will follow the several hundred Mbps and latency within 20 ms results in
linkage to record through video. When there is a gathering significant performance waste and high costs. For these low-
of personnel in key or dangerous areas, the system will speed applications, RedCap reduces the number of antennas
automatically trigger an alarm. by lowering the data transmission rate and adopts half-duplex
(6) 5G+ cluster scheduling: Factories are generally communication instead of full-duplex communication, thereby
equipped with intercoms to facilitate intercom commanding, simplifying signal processing and saving energy. Compared to
but traditional intercoms have poor sound quality and can traditional 5G devices, RedCap is expected to reduce the cost
only transmit voice, not video. Sometimes, complex issues of 5G industrial terminals by more than 30%. When a large
encountered on-site cannot be clearly expressed through voice number of 5G terminals are deployed in factories, RedCap will
alone, which requires visual intercom and visual group calling. bring significant cost reductions.
After deploying 5G within the factory, 5G intercom handsets 4.2 Dual-path redundancy
can replace traditional intercoms, eliminating the need for Due to factors such as terminal handover, obstruction in
dialing and enabling one-click visual single calling and group the environment, electromagnetic interference, and large data
calling. The initiator of group calling can synchronously send volume, wireless communication can result in high packet loss
their audio and video to each member of the group with one rates and excessive latency. In high-real-time and control-type
click, and can perform arbitrary grouping, management, and applications, high packet loss rates and high latency are often
high-priority preemption through the 5G dispatch console, unacceptable. Even in 5G systems, these latency and reliability
achieving "one call, all respond" for the production line. issues caused by wireless environmental problems are difficult
to avoid. In the tire and chemical industries, data transmission
4 Evolution towards 5.5G latency and reliability are major issues related to production
The International Standards Organization 3GPP is safety and efficiency. The concept of multi-path redundant
also continuously promoting the smooth evolution of 5G transmission has emerged, and there are currently various
technology towards 5.5G and 6G. With the standard freeze of technical solutions in the industry. Xinyuan has developed a
3GPP Release 18, some evolution functions oriented towards 5G dual-path terminal tailored to factory needs, which greatly
industrial scenarios, which can be regarded as 5.5G technology, optimizes the latency and reliability during factory data
have become increasingly mature. This will undoubtedly transmission. This product reduces the packet loss rate to one-
inject more vitality into 5G industrial scenarios. Among them, tenth of that of ordinary 5G terminals and the latency to one-
technologies closely related to industrial scenarios include: third of that of ordinary 5G terminals, solving the worries of
4.1 Redcap (Lightweight 5G) 5G in industrial control systems and making it affordable and
RedCap, whose full name is Reduced Capability, refers reliable for factories to use. The terminal is equipped with two
to lightweight 5G terminals. RedCap mainly streamlines communication modules (supporting different solutions such
capabilities such as 5G speed to precisely adapt to low-to- as 5G+5G, 5G+4G, 5G+Wifi6), and during the communication
medium-speed IoT scenarios, thereby enhancing the cost- process, the sender uses an FPGA (Field Programmable Gate
effectiveness of devices and networks. Many IoT applications Array) chip to achieve instant data replication, alignment,
do not require high throughput or strict latency, but cost and timestamp marking, and dual-path transmission with
power consumption are significant considerations for these extremely low latency. The receiver uses algorithms within the

Vol.52，2026 ·25·