Weisheng Information applies for patents related to non-intrusive sensors, which measure voltage non-invasively and address multiple technical issues.

March 25 news, according to information from the National Intellectual Property Administration, Winsin Information Technology Co., Ltd. has applied for a patent titled “A Non-Invasive Sensor with an External Excitation Source and a Voltage Measurement Method.” The application publication number is CN121721373A, the application number is CN202511737545.5, the application publication date is March 24, 2026, the filing date is November 25, 2025, the inventors are Yin Ziqiang, Zhang Lei, Fan Chengxiang, Ma Haitao, He Zhaohui, and Ma Liang, the patent agency is Changsha Chuwei Intellectual Property Agency Partnership (General Partnership), the patent agent is Gong An, and the classification numbers are G01R29/12, G01R29/14, G01R19/00, G01R15/00, and G01R1/30.

The patent abstract shows that the invention discloses a non-invasive sensor with an external excitation source and a voltage measurement method. In particular, the non-invasive sensor includes: a sensing signal acquisition unit, a sensing signal conditioning unit, and a main control unit. The main control unit is respectively connected to the sensing signal conditioning unit and the cable power supply; the sensing signal conditioning unit is connected to the sensing signal acquisition unit; and the sensing signal acquisition unit is connected to the cable under test through non-contact sensing and coupling. The main control unit is configured to inject a specific excitation signal into the AC loop of the cable power supply to form a composite signal, and then, based on a preset excitation source amplitude parameter, parse the composite signal and compute the power supply voltage of the cable under test. The sensing signal acquisition unit generates a corresponding sensing signal by capturing the electric-field energy produced by the composite signal in the cable under test. The sensing signal conditioning unit performs standardization processing on the sensing signal. This invention addresses the technical problems that existing external excitation voltage measurement has low accuracy, low system integration, and a single excitation source generation method.

Winsin Information was established on May 8, 2004, and was listed on the Shanghai Stock Exchange on January 21, 2020. Its registered and office addresses are both in Changsha, Hunan Province. It is a leading provider of comprehensive IoT solutions in China; its core businesses cover IoT soft- and hardware products at various layers, and it has advantages across the entire industrial chain.

Winsin Information belongs to the Shenwan industry of Communication—Communication Equipment—Communication Terminals and Accessories. The concept sector includes mid-cap growth, mid-cap, and small-cap stocks. Relying on key technology reserves covering all layers of the IoT architecture, the company engages in the R&D, production, and sales of IoT products such as electric monitoring terminals at various layers, and provides end-to-end overall solutions for smart public utilities.

In 2025, Winsin Information’s operating revenue reached RMB 2.98B, ranking No. 1 among 2 companies in the industry, far ahead of the second-place Guodun Quantum’s RMB 310 million; it is also higher than the industry average and median by RMB 1.6444 billion. In its main businesses, communication gateway revenue of RMB 1.03B accounted for 34.52%. Regarding net profit, in 2025 it was RMB 666 million, also ranking No. 1 in the industry; the second-place Guodun Quantum had only RMB 5.4286 million, higher than the industry average and median by RMB 336 million.

Winsin Information Technology Co., Ltd.’s recent patent situation is as follows:

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