CN202634088U - One-to-many wireless charging system in sensor network for internet of things - Google Patents
One-to-many wireless charging system in sensor network for internet of things Download PDFInfo
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- CN202634088U CN202634088U CN2012202774395U CN201220277439U CN202634088U CN 202634088 U CN202634088 U CN 202634088U CN 2012202774395 U CN2012202774395 U CN 2012202774395U CN 201220277439 U CN201220277439 U CN 201220277439U CN 202634088 U CN202634088 U CN 202634088U
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Abstract
The utility model provides a one-to-many wireless charging system in a sensor network for an internet of things. The sensor network for the internet of things is internally provided with a public energy transmitter, each node of the sensor network for the internet of things is provided with a receiver, the energy transmitter wirelessly transmits electric energy signals to the node of each direction in the manner of 360-degree rotation, and the energy receivers receive the electric energy signals, and store the electric energy signals in charging modules of the nodes. According to the one-to-many wireless charging system, aiming at the node power supply cruising capability in the sensor network, the wireless energy receivers are embedded in node hardware, and the sensor network for the internet of things is internally provided with the public energy transmitter, so that 3-1000m of far-distance one-to-many wireless charging can be realized by a resonance transmission principle, the problem of the frequent change of power supplies can be solved, the continuous supply of the power supply in the network can be realized, and the long-term stable running of the network can be guaranteed. Furthermore, the energy transmitter is a public device, and a spherical rotation mode is adopted in the process of transmitting, so that the directive problem of the resonance wireless charging can be solved; and the automatic controlling and running of the electric energy capability can be realized by node charging modules.
Description
Technical field
The utility model relates to a kind of wireless charging system.
Background technology
Internet of Things is the important component part of strategic new industry, has important impetus to accelerating transformation of the mode of economic development.For accelerating the Internet of Things development; Cultivate and growth generation information technical industry; Ministry of Industry and Information of country has issued on February 14th, 2012 " Internet of Things " 12 " development plan " according to " the 12 five-year-plan outline of People's Republic of China's national economy and social development ", " State Council is about accelerating the decision of cultivation and development strategy property new industry ".
Wireless sensor network is one of basic composition of modern technology of Internet of things; It is emerging sensor network; In December, 2000, IEEE set up IEEE802.15.4 working group, was devoted to define a kind of low rate wireless connect technology of utmost point low complex degree, cost and the power consumption of using from fixing, the portable or mobile device of cheapness.Product convenient, flexible, be easy to connect, practical reliable and can to continue to continue be the actuating force in market.
Because the low-power operation characteristic of Internet of Things sensor node and One's name is legion, distribution randomness; The small-capacity cells of the general configures low power of node hardware device was worked one to two year, need regularly carry out the replacing of battery; To continue keeping the unimpeded of network, make system's continuous service.The flying power of sensor network nodes power supply becomes one of maximum bottleneck of ectocrine networking development, needs a large amount of battery alterings that frequently carries out to keep the network operation now.
Using rechargeable battery is one of effective ways that solve the battery flying power.But quantity reaches the limitation of wired charging more, and wired charging is seemed unlikely, though nearest wireless charging technical development is rapid, also is to be confined to short-range transmission, can not solve actual Internet of Things application problem.
Be found in modern wireless charging alliance on December 17th, 2008 (Wireless Power Consortium), its mission is in order to create and to promote market extensively to adopt the international wireless charging standard Qi compatible with all rechargeable electronic equipments.On September 1st, 2010, announce Qi wireless charging international standard is taken the lead in introducing China in Beijing.The compatible quality supervision and test of Ministry of Information Industry's communication electromagnetism center also adds this tissue.
But only solved the wireless charging that closely is bordering on millimeter distance of articles for daily use under this standard, powerless for the sensor network nodes of medium and long distance.
Up to the present the wireless charging device that comes into operation can not solve the wireless charging problem of middle and long distance with technology, and charging be recharged the leap that can not realize barrier between the equipment and pass through, can't be applied in the present sensor network.
The utility model content
The purpose of the utility model provides a kind of lasting supply that guarantees power supply in the Internet of Things sensor network, guarantees the one-to-many wireless charging system of the long-term stability operation of network.
For realizing above-mentioned purpose, the utility model adopts following technical scheme:
One-to-many wireless charging system in a kind of Internet of Things sensor network; A public energy emitter is set in the Internet of Things sensor network; And each node at the Internet of Things sensor network is provided with the energy receiving system; Described energy emitter sends electric power signal with modes wireless, 360 degree rotations to the node of all directions, and the energy receiving system receives electric power signal, and this electric power signal is stored in the charging module of this node.
Described energy emitter comprises chaotic signal generating circuit; The chaos electric power signal that chaotic signal generating circuit produces gets into switch driving circuit; Switch driving circuit makes the voltage of chaos electric power signal reach the required voltage levvl of energy transmitter module, and last chaos electric power signal sends through the energy transmitter module; Described energy receiving system comprises the energy receiver module, and the energy receiver module is sent into high-frequency rectification circuit after receiving this chaos electric power signal, after high-frequency rectification circuit is handled, sends in the charging module.
In described energy transmitter module and energy receiver module, all adopt fractal antenna, the antenna of fractal antenna for adopting hibert curve to process.
The switching tube that switch driving circuit comprises chip for driving and is arranged on the chip for driving output.
Described high-frequency rectification circuit comprises bridge rectifier, and the output of bridge rectifier connects the RC filter circuit.
Described charging module is a storage battery, and storage battery is connected with the electric weight self-checking circuit.
Adopt the utility model of technique scheme; To the node power flying power in the sensor network, be employed in and embed the wireless energy receiving system in the node hardware, in thing joins sensor network, a public energy emitter is set; Realize the remote a pair of wireless charging of 3-1000 rice through the resonance transmission principle; Solve the problem of power supply frequent change, realize the lasting supply of power supply in the network, guarantee the long-term stability operation of network.And the energy emitter is a utility device, and emission the time adopts spherical rotation mode, has solved the directional problems of resonance wireless charging; At last, the node charging module can be realized the automatic control operation of power capacity.
Description of drawings
Fig. 1 is the overall structure figure of the utility model.
Fig. 2 is the circuit theory diagrams of the utility model.
Fig. 3 is the chaotic signal generating circuit schematic diagram.
Fig. 4 is switch driving circuit and transmitting antenna schematic diagram.
Fig. 5 is the fractal antenna structural representation.
Fig. 6 is the receiving terminal circuit schematic diagram.
Embodiment
As shown in Figure 1; One-to-many wireless charging system in a kind of Internet of Things sensor network, it is provided with a public energy emitter in the Internet of Things sensor network, and at each node of Internet of Things sensor network the energy receiving system is set; Wherein, The energy emitter sends electric power signal with modes wireless, 360 degree rotations to the node of all directions, and the energy receiving system receives electric power signal, and this electric power signal is stored in the charging module of this node.
As shown in Figure 2; The energy emitter comprises chaotic signal generating circuit; The chaos electric power signal that chaotic signal generating circuit produces gets into switch driving circuit; Switch driving circuit makes the voltage of chaos electric power signal reach the required voltage levvl of energy transmitter module, and last chaos electric power signal sends through the energy transmitter module; Above-mentioned energy receiving system comprises the energy receiver module, and the coil of energy receiver module will have identical frequency characteristic with capture magnetic field energy to greatest extent with transmitting coil; After the energy receiver module receives this chaos electric power signal; Send into high-frequency rectification circuit, after high-frequency rectification circuit is handled, send in the charging module, charging module is a storage battery; And storage battery is connected with the electric weight self-checking circuit, and above-mentioned electric weight self-checking circuit is a technology well known to those skilled in the art.
As shown in Figure 3, be the chaotic signal generating circuit theory diagram of the utility model.This circuit is formed by connecting through a piecewise linearity scalar function feedback two very simple linear two-dimensional subsystems.
Two two-dimentional subsystems are:
（1）
Wherein, the variable x1 in the formula (1), x2, x3, x4 are the node V in the circuit
1, V
2, V
3, V
4And node V in the circuit
1And V
2Constitute first two-dimentional subsystem, parameter a and b are adjustable.Node V
3And V
4Constitute second two-dimentional subsystem, parameter c and d are adjustable.The state equation of chaotic signal generating circuit is following:
In the formula (2), V
0∈ [Vcc, Vcc];
R1 in the circuit～R15=1.6k Ω, C1=C2=C3=C4=C=0.01 μ F, R
C1=160k Ω, R
C4=R
F3=10k Ω, R
F2=20k Ω, Rf=30k Ω, V
CC=5V, this circuit is by ± V
CCPower supply.
Two adjustable resistance RC1 and RC4 in this chaotic signal generating circuit have bigger adjustable extent, and in this scope, this circuit all has essentially identical chaotic signal output.
As shown in Figure 4, be the switch driving circuit and the transmitting antenna theory diagram of the utility model.Wherein chip for driving adopts IR2110, and it adopts highly integrated level conversion technology, has simplified the control requirement of logical circuit to power device greatly, has improved the reliability of drive circuit simultaneously.Switching tube Q1 adopts IRF840, is a withstand voltage height, and big electric current, powerful tripod MOSFET are the present known higher device of operating frequency.Through the opening and break off of chip for driving IR2110 control switch pipe, obtain the voltage of stimulated emission system resonance.Signal transmitting system is made up of source coil and transmitting antenna, and L1 and C1 are resonant tank, constitutes the energy emission system.Alternating voltage produces on source coil and exchanges chaos magnetic field, and this chaos magnetic field is directly coupled to transmitting antenna, and its emission of magnetic field that produces greater strength is gone out.
As shown in Figure 5, be the fractal antenna structural representation of the utility model, the utility model adopts hibert curve to make fractal antenna, and hibert curve has the fractal dimension height, can make full use of spatial emission and received energy.Combine with receiving system with the emission of chaos energy, can make full use of chaos and fractal mechanism, improve energy emission and the efficient that receives.
As shown in Figure 6, be the receiving terminal circuit theory diagram of the utility model.The same fractal antenna of receiving system, L2 and C2 are resonant tank, constitute the energy receiving system.Reception antenna and reception antenna produce resonance, receive magnetic field energy to greatest extent, and with being converted into electric energy after the magnetic field energy.High-frequency rectification circuit adopts bridge rectifier SR1, and the output of bridge rectifier connects the RC filter circuit, and its effect is as much as possible unidirectional ripple component to be filtered, and makes output voltage become smoother direct voltage.
Claims (6)
1. one-to-many wireless charging system in the Internet of Things sensor network; It is characterized in that: a public energy emitter is set in the Internet of Things sensor network; And each node at the Internet of Things sensor network is provided with the energy receiving system; Described energy emitter sends electric power signal with modes wireless, 360 degree rotations to the node of all directions, and the energy receiving system receives electric power signal, and this electric power signal is stored in the charging module of this node.
2. one-to-many wireless charging system in the Internet of Things sensor network according to claim 1; It is characterized in that: described energy emitter comprises chaotic signal generating circuit; The chaos electric power signal that chaotic signal generating circuit produces gets into switch driving circuit; Switch driving circuit makes the voltage of chaos electric power signal reach the required voltage levvl of energy transmitter module, and last chaos electric power signal sends through the energy transmitter module; Described energy receiving system comprises the energy receiver module, and the energy receiver module is sent into high-frequency rectification circuit after receiving this chaos electric power signal, after high-frequency rectification circuit is handled, sends in the charging module.
3. one-to-many wireless charging system in the Internet of Things sensor network according to claim 2 is characterized in that: in described energy transmitter module and energy receiver module, all adopt fractal antenna, the antenna of fractal antenna for adopting hibert curve to process.
4. one-to-many wireless charging system in the Internet of Things sensor network according to claim 2 is characterized in that: the switching tube that described switch driving circuit comprises chip for driving and is arranged on the chip for driving output.
5. one-to-many wireless charging system in the Internet of Things sensor network according to claim 2, it is characterized in that: described high-frequency rectification circuit comprises bridge rectifier, the output of bridge rectifier connects the RC filter circuit.
6. one-to-many wireless charging system in the Internet of Things sensor network according to claim 1, it is characterized in that: described charging module is a storage battery, and storage battery is connected with the electric weight self-checking circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012202774395U CN202634088U (en) | 2012-06-13 | 2012-06-13 | One-to-many wireless charging system in sensor network for internet of things |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012202774395U CN202634088U (en) | 2012-06-13 | 2012-06-13 | One-to-many wireless charging system in sensor network for internet of things |
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| CN202634088U true CN202634088U (en) | 2012-12-26 |
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| CN2012202774395U Expired - Lifetime CN202634088U (en) | 2012-06-13 | 2012-06-13 | One-to-many wireless charging system in sensor network for internet of things |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104124764A (en) * | 2013-04-27 | 2014-10-29 | 海尔集团技术研发中心 | Wireless power transmission receiving end, system and receiving method |
| CN104469878A (en) * | 2014-10-20 | 2015-03-25 | 东华理工大学 | Clustering routing method suitable for non-contact charging type WSN |
| CN105896672A (en) * | 2016-05-31 | 2016-08-24 | 河海大学常州校区 | Charging method for mobile robot in wireless charging sensor network system |
-
2012
- 2012-06-13 CN CN2012202774395U patent/CN202634088U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104124764A (en) * | 2013-04-27 | 2014-10-29 | 海尔集团技术研发中心 | Wireless power transmission receiving end, system and receiving method |
| CN104124764B (en) * | 2013-04-27 | 2018-08-14 | 海尔集团技术研发中心 | Wireless power transmission receiving terminal, system and method for reseptance |
| CN104469878A (en) * | 2014-10-20 | 2015-03-25 | 东华理工大学 | Clustering routing method suitable for non-contact charging type WSN |
| CN105896672A (en) * | 2016-05-31 | 2016-08-24 | 河海大学常州校区 | Charging method for mobile robot in wireless charging sensor network system |
| CN105896672B (en) * | 2016-05-31 | 2018-03-27 | 河海大学常州校区 | The charging method of mobile robot in a kind of wireless charging sensor network system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121226 |
|
| CX01 | Expiry of patent term |