Magnetic resonance technology enables robots to obtain energy during movement without precise alignment or interruption by stopping, completely liberating the working radius.

In the laboratory of WIRELESSPT in Qingdao, an AGV is demonstrating a silent transformation: when its battery is low, it doesn't need to be precisely aligned; it just needs to pass through a charging area and can automatically replenish energy through magnetic resonance.

This is the miracle created by long-distance wireless charging technology. It eliminates the reliance of industrial robots on precise parking, making charging as simple as passing by.

01 Long-distance Charging Challenge: Special Requirements of Industrial Environments

The industrial environment poses strict requirements for wireless charging technology. In traditional applications of automated guided vehicles (AGVs) and autonomous mobile robots (AMRs), misalignment, wear and tear, and sparks of charging contacts are common problems.

In damp, dusty or explosive environments, such problems are not only efficiency bottlenecks but also serious safety hazards.

In modern intelligent warehousing and manufacturing sites, every inch of land is extremely precious. If the prime land used for charging can be saved for production, it will directly enhance the enterprise's efficiency.

However, traditional charging methods often require robots to reserve a dedicated charging area and precisely align the charging contacts, a process that is both time-consuming and space-consuming.

In addition, in complex working environments such as outdoor inspections, petrochemicals, and port terminals, robots are constantly exposed to extreme conditions like low temperatures, humidity, and dust.

These environments not only require charging devices to have strong environmental adaptability, but also need to overcome the problem of difficult alignment caused by harsh conditions.

02 Technical Advantages: WIRELESSPT long-distance charging solution

The magnetic coupling resonant wireless charging technology of WIRELESSPT breaks the spatial limitations of traditional charging methods. This technology has significantly enhanced the degree of freedom in transmission, eliminating the need for precise alignment between the transmitting end and the AGV receiving end.

The system has a relatively wide transmission air gap distance and allows for significant offsets in both horizontal and vertical directions, greatly reducing the positioning accuracy requirements of the robot.

Unlike inductive charging systems that require precise alignment, the magnetic resonance technology of WIRELESSPT enables robots to achieve efficient energy transmission over a wide air gap.

This breakthrough enables robots to charge automatically while on the move without interrupting their workflow, truly achieving "opportunity charging".

The wireless charging system of WIRELESSPT has a charging efficiency as high as 93%, comparable to traditional wired charging. Its charging current can reach over 200 amperes, and the charging speed has partially surpassed that of traditional industrial wired charging.

The system achieves an IP67 protection rating and can operate stably in low-temperature, humid or dusty environments, meeting the demands of various complex industrial scenarios.

03 Application Value: The Transformation Brought by long-distance charging

Long-distance wireless charging technology is reshaping the working methods and system architectures of industrial robots.

In high-density warehouse environments, robots do not need to travel specifically to fixed charging stations, nor do they need to reserve dedicated space for charging.

They can complete energy replenishment at any position in the operation area, even at temporary stops, thereby maximizing the utilization of every inch of available space.

The feature of no need for precise alignment makes the robot charging process simple and efficient. The robot does not need to repeatedly adjust its position to find the best charging point, reducing the time and energy consumption during the charging process, and also lowering the complexity of the positioning system.

For scenarios that require 7× 24-hour continuous operation, such as intelligent logistics and warehousing, and intelligent manufacturing, long-distance wireless charging technology ensures the continuity of production.

Robots can automatically charge during breaks in work, achieving true uninterrupted operation and significantly enhancing overall production efficiency.

In high-risk environments such as petroleum, chemical, and mining scenarios, the zero-spark feature of long-distance wireless charging fundamentally eliminates potential safety hazards during the charging process.

Staff members do not need to enter dangerous areas to perform plugging and unplugging operations, which enhances overall safety.

04 Practical Case: Successful Application of Long-distance Charging

The long-distance wireless charging technology of WIRELESSPT has been successfully applied in multiple industries, demonstrating its wide adaptability and reliability.

In the case of a certain robot company in Suzhou, the AGV used for goods sorting and handling could automatically plan its path to the nearest wireless charging station when the remaining battery power was below the warning threshold.

Energy transmission is achieved through magnetic field resonance, and the entire process requires no human intervention, realizing fully automated and intelligent charging.

In the power inspection scenario, the wireless charging device of WIRELESSPT has solved the charging problem in outdoor environments. The inspection robot can set up wireless charging areas at key points along the inspection route, allowing it to replenish energy without precise docking.

It ensures the robot's continuous working ability under adverse weather conditions.

In 2017, a leading robot company adopted WIRELESSPT's wireless charging solution. This not only serves as an authoritative certification of WIRELESSPT technology but also becomes a key fulcrum to drive the market.

Since then, WIRELESSPT has accelerated its innovation and successively launched three major wireless charging product matrices: waterproof, explosion-proof, and AGV.

05 Future Prospects: The Evolution Path of Long-Distance Charging

Long-distance wireless charging technology is evolving towards greater power, higher efficiency and a wider range.

Industry experts predict that by 2033, the market for wireless AGV/AGV charging systems will reach a scale of 1.5 billion US dollars, becoming the mainstream of industrial power infrastructure.

The significance of long-distance wireless charging has transcended the technology itself; it is becoming a key enabling technology for intelligent manufacturing.

When machines are free from the constraints of power supply, what we can create is not only higher efficiency but also a brand-new possibility of production.