South University of Science and Technology of China

S. University of Science and Technology of China

Zidong Han

Yi Gong

Yue Zhang

Zhi Quan

Chenghao Zheng

Xiaoyang Li

Mingzhe Li

Chong Qin

Disclosed is a control method for controlling data return in a passive sensor network comprising an aggregation node and sensor nodes. The control method comprises the following steps: controlling the aggregation node to broadcast energy to the entire passive sensor network; controlling the sensor nodes to collect the energy broadcast by the aggregation node; clustering, according to a predetermined clustering rule, the sensor nodes and selecting cluster heads; and controlling each of the sensor nodes of each cluster to transmit data to a corresponding cluster head and then to the aggregation node or one of the sensor nodes of a cluster closer to the aggregation node so as to eventually transmit the data to the aggregation node and closing the sensor node that completes data transmission. In addition, a control device is also disclosed.

Passive sensor networking protocol

Disclosed is a control method for controlling data return and energy optimization in a passive sensor network. The passive sensor network comprises an aggregation node and sensor nodes. The control method comprises an energy calculating step, an energy broadcasting step, an energy collecting step, a clustering step and a data transmitting step. By means of the control method in the embodiments of the present disclosure, data return and energy optimization in a passive sensor network are controlled, so that insofar as all sensor nodes can return data to an aggregation node, the aggregation node consumes the least amount of energy, thereby achieving the optimal energy usage efficiency. Also disclosed is a control device.

Method for optimizing passive sensor network protocol

An energy management method and system are provided for a receiving terminal of a simultaneous information and energy transfer system. The method comprises the steps of: activating a battery to provide a working power supply, receiving a simultaneous information and energy transfer signal, processing the signal and harvesting energy in the signal, storing the harvested energy into a temporary energy storage unit, and stopping the battery from supplying power, and charging the battery from the energy stored in the temporary energy storage unit. The system comprises a receiver and an energy management module.

Energy management method and system for receiving terminal of simultaneous information and energy transfer system

A simultaneous information and energy transfer method and system with a guard interval signal are provided. The method comprises the steps of generating, by a transmitting terminal, a controllable guard interval signal according to the current energy demand and environment conditions for channel transmission. The system comprises a transmitting terminal configured to generate a controllable guard interval signal. In the system and method, the guard interval time is fully utilized to transfer a guard interval signal with controllable amount of energy, which not only prevents intersymbol interference, but also provides controllable energy signals within the guard interval time at the same time, thus improving the energy transfer performance of the system and reducing the probability that the receiving terminal is unable to operate normally due to energy shortage. The present invention can be widely applied to a variety of simultaneous wireless information and energy transfer systems.

Method and system for simultaneous information and energy transfer with a guard interval signal

A method is provided for digital Simultaneous Information and Energy Transfer (SIET), comprising the steps of receiving a serial SIET analog signal, and converting the serial SIET analog signal received into a parallel SIET analog signal, extracting an analog information signal and an analog energy signal from the parallel SIET analog signal, performing analog-to-digital conversion on the analog information signal to obtain a digital information signal, and performing information demodulation, parallel-to-serial conversion and decoding on the digital information signal in digital domain, and pre-processing the analog energy signal in analog domain and storing the preprocessed analog energy signal. As the information signal is processed in the digital domain and the energy signal is processed in the analog domain, the energy in the SIET signal can be full collected in receiving side.

Receiving method and system for digital simultaneous information and energy transfer

A resource allocation optimization method is provided for a Simultaneous Information and Energy Transfer (SIET) system. A baseband signal transmitted by a transmitting terminal of the system contain an information signal and an energy signals. The optimization method comprises a step P1 of determining a system pre-allocated parameter set, and solving steps for the step P1. The multicarrier broadband SIET optimization method disclosed is automatically configurable and feasible, giving consideration to both wireless energy supply and information transmission. The energy signal and the information signal are simultaneously and independently transmitted to the receiving terminal, therefore providing the energy required by the receiving terminal operating in a working mode. The method described can be widely applied into a variety of information and energy simultaneous transformation systems.

Resource allocation optimization method for simultaneous information and energy transfer system

A receiver is provided, wherein the receiver includes an antenna, a band pass filter and a frequency mixer electrically connected in sequence, and a local oscillator electrically connected with the frequency mixer, and further includes: a diplexer for separating and outputting high and low frequency components in a signal outputted by the frequency mixer; and a rectifying unit for converting the high frequency component outputted by the diplexer into direct current energy and storing the direct current energy in a storage battery. The diplexer introduced in the receiver separates a baseband signal and a carrier signal in the same path losslessly, respectively conducts information decoding and energy capture, implements simultaneous information and energy transfer, and does not need to change the present modulation technology, therefor having strong compatibility, being reasonable and simple in structure, and being easy to implement.

Receiver

A transmitting method and receiving method for simultaneous information and energy transfer comprises: determining a first pre-allocated parameter set of a first baseband signal based on a first optimized parameter set and according to a first optimized target and a first constraint condition set; determining a second pre-allocated parameter set of a second baseband signal based on a first optimized result and a second optimized parameter set and according to a second optimized target and a second constraint condition set; and processing the baseband signals into corresponding radio-frequency signals according to the first pre-allocated parameter set and the second pre-allocated parameter set and transmitting the radio-frequency signals through an antenna; the first baseband signal and the second baseband signal each being an information baseband signal or an energy baseband signal. Both the energy transfer efficiency and the information transfer rate are improved by optimizing the information signals and energy signals.

Transmitting method and receiving method for simultaneous information and energy transfer

A transmitting system and a receiving system for multi-carrier broadband simultaneous information and energy transfer are provided, the transmitting system comprising: a signal management control system, a baseband signal generating unit, an encoding unit, a serial-parallel conversion unit, a mapping unit, a modulation unit and a parallel-serial conversion unit. By adopting the transmitting system for simultaneous information and energy transfer, separate energy signals are transmitted simultaneously while the information signals are transmitted to the receiving end, and sufficient energy can be provided for the receiver. Besides, by optimizing information signal and energy signal through the optimization algorithm, not only the energy transfer efficiency but also the information transfer rate can be improved.

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Guangdong, China

Zidong Han