CN203326733U - Wireless sensor network node charging system - Google Patents

Abstract

The utility model discloses a wireless sensor network node charging system, comprising a power processing module and a receiving module, the power processing module and the receiving module are wirelessly connected, the power processing module includes a power supply, an inverter circuit, a resonant circuit and a transmitting coil, and a power supply It is electrically connected to the inverter circuit, the inverter circuit is electrically connected to the resonant circuit, the resonant circuit is electrically connected to the transmitting coil, the receiving module includes a receiving coil and a load, and the receiving coil is electrically connected to the load. The principle of resonant circuit is used to realize wireless charging technology, and the equipment that needs to be charged can be charged online within the range that the equipment can receive, so as to prolong the life of nodes and the life of the network.

Description

Wireless sensor network node charging system

technical field

The utility model relates to a wireless charging system, in particular to a wireless sensor network node charging system, which belongs to the technical field of wireless charging systems.

Background technique

At present, the energy of sensor nodes in wireless sensor networks is severely limited. If the energy of a node is exhausted, the node is basically abandoned. When all nodes are abandoned, the wireless sensor network can no longer be used. The key direction of sensor network research, and the existing technology is to improve energy efficiency as much as possible, reduce energy consumption and other means, such as the node clustering algorithm of various wireless sensor networks, in the actual engineering system, the system due to the environment and place The reason is that there is no wireless sensor network solution that directly charges the nodes, resulting in premature failure of the system.

Contents of the invention

Aiming at the problems existing in the above-mentioned prior art, the utility model provides a wireless sensor network node charging system, which adds a resonant circuit device on the basis of the original node, realizes the wireless charging technology, and charges the devices that need to be charged within the acceptable range of the equipment. The device is charged online to extend the life of the node and the life of the network.

In order to achieve the above purpose, the technical solution adopted by the utility model is: a wireless sensor network node charging system, including a power processing module and a receiving module, the power processing module and the receiving module are wirelessly connected, and the power processing module includes a power supply, inverter The transformer circuit, the resonant circuit and the transmitting coil, the power supply and the inverter circuit are electrically connected, the inverter circuit is electrically connected to the resonant circuit, the resonant circuit is electrically connected to the transmitting coil, the receiving module includes a receiving coil and a load, and the receiving coil is electrically connected to the load.

Further, the power processing module is composed of power supply Vs, loss resistors R ₁ , R ₂ , R ₃ , R ₄ , and coils L ₁ , L ₂ , and the receiving module is composed of loss resistors R ₅ , R ₆ , R ₇ , R ₈ , coil Composed of L ₃ , L ₄ and load R _L , power supply Vs, loss resistors R ₁ , R ₂ are connected in series with coil L ₁ to form closed loop 1, loss resistors R ₃ , R ₄ and coil L ₂ are connected in series to form closed loop 2, loss resistor R ₅ , R ₆ and coil L ₃ are connected in series to form closed loop 3, loss resistors R ₇ , R ₈ , coil L ₄ and load R _L are connected in series to form closed loop 4, in which coils L ₁ and L ₂ form mutual inductance circuit 1, and coil L ₃ and L ₄ form a mutual inductance circuit two.

Further, there can be one or more loads.

Working principle: When the node needs to be charged, the charging circuit is turned on, and the electric energy will be transmitted in the transmission line. The mutual induction circuit composed of coils L ₁ and L ₂ first receives the electric energy, and the mutual induction circuit will vibrate at a certain frequency wavelength. Generate electromagnetic waves, and then spread the emitted energy to a certain distance, drive the mutual induction circuit 2 composed of L ₃ and L ₄ to work, and generate resonance phenomenon, the mutual induction circuit 2 receives electric energy, charges the energy into the node battery, and realizes wireless charging technology.

Compared with the prior art, the utility model utilizes the principle of a resonant circuit, and the electric energy in the transmission line is first transmitted to the mutual induction circuit 1 composed of coils _L1 and _L2 , and the mutual induction circuit 1 vibrates at a wavelength of a certain frequency to generate electromagnetic waves , spread the emitted energy to a certain distance, drive the mutual inductance circuit 2 composed of L ₃ and L ₄ to work, and generate resonance phenomenon, the mutual inductance circuit 2 receives the electric energy, charges the energy into the node battery, and realizes the wireless charging technology. Online charging for devices that need to be charged within the acceptable range of the device, prolonging the life of the node and the life of the network.

Description of drawings

Fig. 1 is a block diagram of the utility model;

Fig. 2 is the schematic circuit diagram of the utility model.

Detailed ways

Below in conjunction with accompanying drawing, the utility model is further described.

As shown in Figure 1 and Figure 2, the utility model includes a power processing module and a receiving module, the power processing module and the receiving module are wirelessly connected, the power processing module includes a power supply, an inverter circuit, a resonant circuit and a transmitting coil, the power supply and The inverter circuit is electrically connected, the inverter circuit is electrically connected to the resonant circuit, the resonant circuit is electrically connected to the transmitting coil, the receiving module includes the receiving coil and the load, and the receiving coil is electrically connected to the load. The DC voltage is converted into a high-voltage AC voltage, and the resonant circuit uses the coupling of the inductance coil to realize the transmission of wireless electromagnetic waves, resulting in a resonance phenomenon. The power processing module is composed of power supply Vs, loss resistors R ₁ , R ₂ , R ₃ , R ₄ , and coils L ₁ , L ₂ , and the receiving module is composed of loss resistors R ₅ , R ₆ , R ₇ , R ₈ , and coil L ₃ , L ₄ and load R _L , power supply Vs, loss resistors R ₁ , R ₂ are connected in series with coil L ₁ to form closed loop 1, loss resistors R ₃ , R ₄ and coil L ₂ are connected in series to form closed loop 2, loss resistor R ₅ , R ₆ and coil L ₃ are connected in series to form a closed loop 3, loss resistors R ₇ , R ₈ , coil L ₄ and load R _L are connected in series to form a closed loop 4, in which coils L ₁ and L ₂ form a mutual inductance circuit 1, and coils L ₃ and L ₄ forms mutual inductance circuit two. There can be one or more loads, which can realize one-to-one charging or one-to-many charging within a certain distance.

When the node is working, when it is detected that the energy of the node is about to be exhausted and needs to be charged, just turn on the circuit for charging. Using the principle of the resonant circuit, the electric energy in the transmission line is first transmitted to the mutual induction circuit composed of coils L1 and L2. The mutual induction circuit will vibrate at a wavelength of a certain frequency, generate electromagnetic waves, and spread the emitted energy to a certain distance, driving the mutual induction circuit 2 composed of L3 and L4 to work, resulting in a resonance phenomenon, the mutual induction circuit 2 will receive electric energy and transfer the energy Charge it into the node battery, realize wireless charging technology, and charge the device that needs to be charged online within the acceptable range of the device, prolonging the life of the node and the life of the network.

Claims (3)

1. A wireless sensor network node charging system, characterized in that it includes a power processing module and a receiving module, the power processing module and the receiving module are wirelessly connected, and the power processing module includes a power supply, an inverter circuit, a resonant circuit and a transmitting coil , the power supply is electrically connected to the inverter circuit, the inverter circuit is electrically connected to the resonant circuit, the resonant circuit is electrically connected to the transmitting coil, the receiving module includes a receiving coil and a load, and the receiving coil is electrically connected to the load. 2. A wireless sensor network node charging system according to claim 1, wherein the power processing module is composed of a power supply Vs, loss resistors R ₁ , R ₂ , R ₃ , R ₄ , and a coil L ₁ , L ₂ , the receiving module is composed of loss resistors R ₅ , R ₆ , R ₇ , R ₈ , coils L ₃ , L ₄ and load R _L , the power supply Vs, loss resistors R ₁ , R ₂ are connected in series with coil L ₁ Closed loop 1, loss resistors R ₃ , R ₄ and coil L ₂ are connected in series to form closed loop 2, loss resistors R ₅ , R ₆ and coil L ₃ are connected in series to form closed loop 3, loss resistors R ₇ , R ₈ , coil L ₄ and The load R _L is connected in series to form a closed loop four, in which coils _L1 and _L2 form a mutual induction circuit one, and coils _L3 and _L4 form a mutual induction circuit two. 3. A wireless sensor network node charging system according to claim 1, characterized in that there can be one or more loads.

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