Research and application of high-precision antenna in vehicle field: Exploration and practice of Shenzhen VLG Wireless Technology Co., LTD

First, Introduction

With the rapid development of the shared travel industry, the disorderly expansion of shared bicycles, electric bicycles and other means of transportation has brought great pressure to urban management. In order to solve this problem, Shenzhen VLG Wireless Technology Co., LTD. (hereinafter referred to as "VLG") is committed to the development of high-precision antenna technology, through the establishment of electronic fence to achieve bicycle parking, effectively solve the problem of disorderly parking. This paper will introduce in detail the research and development achievements and application of VLG in the field of high precision antenna.

Second, Development and application of high-precision antenna technology

2.1. Single frequency single point positioning antenna

Single-frequency single-point positioning antenna uses GPS L1 or BD B1 band for positioning, but due to the limited bandwidth of L1 band, the positioning accuracy is low (10-30 meters), which is not conducive to accurate parking management and background scheduling. Therefore, VLG has upgraded its technology on this basis.

2.2. Single-frequency double-fed RTK positioning antenna

The single-frequency doubly-fed RTK positioning antenna is improved on the basis of single-frequency single-point positioning, and the bandwidth and beam coverage are improved, and the RTK positioning can be realized in a good environment. However, there are still problems that require special treatment in connection with the conductor platform.

2.3. Dual-frequency doubly-fed RTK positioning antenna

The dual-frequency doubly-fed RTK positioning antenna developed by VLG uses two frequency bands of GPS (L1+L5) for positioning, greatly improving the positioning accuracy (within 30 meters), and has strong anti-interference ability. This technological breakthrough provides strong support for accurate parking management in the shared travel industry.

Third, technological innovation and application expansion

3. 1Technological innovation

High-precision antenna technology features the following innovations:

Dual frequency doubly-fed high stable phase center: ensure signal stability and improve positioning accuracy. Good axial ratio: The higher the degree of circular polarization, the smaller the signal loss. Pre-filtering: enhances anti-out-of-band noise capability to ensure signal quality. Wider lobes: can receive more satellites, improve positioning reliability.

3.2. Application development

High-precision antenna technology is widely used in the following areas:

Shared travel: effectively solve the problem of indiscriminate parking of bicycles and improve the efficiency of urban management.

Driverless/vehicle-road collaboration: Provide high-precision positioning support for autonomous driving technology. 

Intelligent inspection: In the power, petrochemical, railway and other industries to achieve centimeter-level positioning, improve inspection efficiency.

Iv. Company introduction and financing plan

4.1. VLG Company profile

Founded in 2005, VLG is a high-tech enterprise focusing on wireless technology research and development. The company has a strong R & D team and perfect production facilities, committed to providing customers with high performance, high quality antenna products.

4.2. Financing plan

In order to further enhance research and development capabilities and expand market share, VLG plans to release 5% of the equity for financing, raising funds of 10 million yuan. These funds will mainly be used for the research and development, marketing and production support of high-precision antenna products.

V. Conclusion

VLG's research and development achievements in the field of high-precision antennas provide strong support for the healthy development of the shared travel industry. In the future, VLG will continue to increase investment in research and development, expand application fields, and make greater contributions to promoting the development of global wireless technology.

GPS L1/L5+ BD B1 GNSS HIGH PRECISION ANTENNA	SUB-METER LEVEL HIGH PRECISION GNSS L1&L5 CERAMIC ANTENNA