Brief introduction of project results

Traditional chemical battery replacement and maintenance problems are more serious, so how to provide long-term reliable power supply to IOT sensor network nodes has become a hot spot of current research. This project designs a new RF wireless energy transmission system and a RF wireless energy collection system based on the transmission model of electromagnetic wave transmission and transmission, with the purpose of supplying power to the nodes of the IOT sensor network at a distance. The innovation of this design lies in the multi-frequency wideband design of the antenna, which can collect and transmit radio frequency energy over a long distance by using the open transceiver band. The system has simple structure, small size and low cost, which is conducive to the miniaturization development of Internet of Things devices.

Performance index

The technical indicators of the radio frequency wireless energy collection and transmission system are divided into: input power level of the receiving antenna, DC output power level, DC output voltage, operating frequency, etc. The technical targets of the project are shown in the following table:

Scope of application, market prospects

This project is suitable for the self-sustaining self-power supply scenario of milliwatt-level low-power electronic devices in the fields of Internet of Things sensor network, intelligent medical equipment, radio frequency tag RFID, etc. It solves the problem of replacing and charging and environmental pollution caused by traditional batteries, and has a very broad application prospect and practical significance.

In recent years, the research on environmental RF energy collection and transmission has been in full swing at home and abroad, and at the same time, with the application of self-powered systems in the fields of Internet of Things sensor networks, intelligent medical equipment, radio frequency tag RFID, etc., has been derived. Therefore, there is every reason to believe that the RF energy collection in the transmission system can be fully capable of achieving self-sustaining power supply for these low-power electronic devices, and the sensor application scenario will be further expanded in the application market, and will have considerable economic weight.

Investment estimates

The main part of this design is mainly composed of VCO information source, power amplifier module, filter, transmitting antenna, rectifier receiving antenna and energy management module. The project needs 800,000 yuan to achieve complete iteration of the product, and most of the investment will be converted into the production cost of the product, and the project has high landing reliability.

Means of cooperation

Transfer; transfer plus commission; cooperative production