CN206490838U - Wireless chargeable node - Google Patents
Wireless chargeable node Download PDFInfo
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- CN206490838U CN206490838U CN201621374368.5U CN201621374368U CN206490838U CN 206490838 U CN206490838 U CN 206490838U CN 201621374368 U CN201621374368 U CN 201621374368U CN 206490838 U CN206490838 U CN 206490838U
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- module
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- battery
- node
- sensor assembly
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Abstract
The utility model discloses a kind of wireless chargeable node, including power module, processor module, sensor assembly and wireless communication module.Power module is monitored by energy acceptance, electricity and protection, main battery and reserve battery are constituted.Main battery and reserve battery can be transferred through magnetic coupling technology and carry out energy supplement.Processor module is responsible for data processing and the task schedulings such as collection environmental data, communication data, dump energy data.Sensor assembly is used to perceive the temperature of environment, humidity, smog and condensation information.Wireless communication module is responsible for transmitting the data such as dump energy information and perception information.Wireless chargeable node passes through electric quantity monitoring, rational management main battery or reserve battery are powered for node, realize that supplying cell does not charge, rechargeable battery is not powered, ensure the stability of energy supply, solve node energy shortage and energy supplies unstable bottleneck problem, laid the foundation to set up round-the-clock rechargeable wireless sensor network.
Description
Technical field
The utility model is related to a kind of wireless chargeable node, belongs to wireless sensor network field.
Background technology
Wireless sensor network (Wireless Sensor Network, WSN) is a kind of net being made up of sensor node
Network, can monitor in real time, perceive and acquisition node deployment area observer perceptive object interested various information (such as light intensity,
The physical phenomenons such as temperature, humidity), and wirelessly send after handling these information.WSN the ecosystem monitor,
Urban facilities monitoring, bridge monitoring, intelligent transportation, indoor positioning, room temperature monitoring, disaster relief, intelligent gardening, accurate agricultural etc.
Field extensive application.One of factor of restriction WSN applications is the node energy in network, because network node is generally used
Battery is powered.Thus WSN interior joints generally fail because of depleted of energy.
For WSN interior joint energy constraint problems, throttling and two schemes of increasing income are proposed.Throttling is i.e. by WSN
The methods such as topological structure, Routing Protocol, data fusion reduce the data transfer frequency, reduce energy expenditure, but this kind of scheme can not
Thoroughly solve the problems, such as node energy.I.e. node increase income by energy extracting device, can continue to obtain energy, thoroughly solve in theory
Certainly this problem.The method of increasing income has replacing battery, obtains environmental energy or radio energy-transmitting several method；Battery methods are changed as sent out
A kind of bright patent " wireless sensor network node based on dual-power module " (CN101951631A) uses dual power supply mould
Formula, when an electric quantity of power supply exhausts, staff changes to scene, for the environment that people is unable to reach, it is impossible to realize,
With certain limitation.Environmental energy, i.e. wind energy, solar energy etc. are obtained, such as patent of invention " confess by sensor network nodes energy
To method and apparatus " (CN102306949A), using dual power supply pattern, when an electric quantity of power supply exhausts, pass through the sun
It can be charged, but this method is easily affected by environment, and energy harvesting is unstable.Radio energy-transmitting method avoids above two methods
Limitation, can it is round-the-clock realize energy supply；Radio energy-transmitting method can be divided into again way of electromagnetic induction, electromagnetic radiation mode,
Magnetic coupling resonance manner etc., wherein magnetic coupling resonance manner are because transimission power is big, efficiency high, apart from it is remote the advantages of progressively weighed
Depending on such as patent of invention " a kind of wireless charging system of wireless sensor network " (CN105006894A) uses magnetic coupling technology pair
Individual node is powered, and patent of invention " wireless sensor network node charging system " (CN203326733U) uses magnetic coupling technology
Multiple nodes are powered simultaneously.
Wireless chargeable node based on magnetic coupling resonance, widely used at present directly power supply or single rechargeable battery side
Case, this results in battery charging process job insecurity.(supplied in order to avoid battery continues electric discharge in charging process to node
Electricity) instability problem, the utility model uses dual power supply framework, a wireless chargeable node designed, based on magnetic coupling
Resonant charging technology, detects dual power supply, auto switching electric source.
Utility model content
Technical problem to be solved in the utility model is that solution energy of wireless sensor network is limited and energy supply is steady
Qualitative question, designs a kind of wireless chargeable node.
The technical scheme that the utility model is used is：Wireless chargeable node is by power module, processor module, sensing
Device module and wireless communication module are constituted, realize node self-energy is obtained and monitored, environmental data collecting and processing and
The function of wireless receiving and dispatching data；Wireless chargeable node uses dual power supply framework, realizes that supplying cell does not charge, rechargeable battery is not
Discharge (not powered to node), pass through that detection is automatic to carry out power supply switching, it is to avoid battery continues to discharge in charging process
The instability problem that (power supply) is brought.
What base station or other nodes specifically, in described wireless communication module reception wireless sensor network was sent
Data, and sending node institute's gathered data is to base station or other nodes.
Further, the temperature of described sensor assembly collection surrounding environment, humidity, smog and condensation data, and handle
These data are supplied to processor module.
Further, described processor module receives base station or the other nodes hair in WSN by wireless communication module
The data come, gather ambient data by sensor assembly and obtain battery data, analyzing and processing by power module
These data, control node performs corresponding operation.Processor module is using microprocessor as core, processing data, stores parameter
Data, the working method of control node.
Further, described power module includes energy acceptance unit, rectification unit, filter unit, voltage regulation unit, energy
Amount monitoring and protection location, energy storage units, control of discharge unit, voltage conversion unit.Energy acceptance unit is by coil
The resonant body constituted with electric capacity, receives electromagnetic wave energy, is converted into AC energy signal.Rectification unit, filter unit are exchange
Electric power signal is rectified into direct current signal, and+5V power supplys are exported by voltage regulation unit, supplies electricity to energy monitoring and protection location.Electric discharge
Control unit is responsible for selection main battery or reserve battery is used as power supply source by processor module control.Voltage conversion unit bag
Include+3.7 turns of+5V circuits and+3.7V turns+3.3V circuits ,+3.7 turns of+5V circuit output signals provide power supply for sensor assembly ,+
3.7 turns of+3.3V circuit output signals are that processor module and wireless communication module provide power supply.
Further, in described power module main battery and reserve battery that energy monitoring and protection location is detected
Energy；Judge whether main battery meets condition of power supply, if it is satisfied, being powered to node；Otherwise, reserve battery is judged
Whether condition of power supply is met, if it is satisfied, being powered to node；If main battery and reserve battery are all unsatisfactory for bar of powering
Part, node in a dormant state, is waited and charged for it；If main battery is powered for node, reserve battery electricity is judged
Whether charge condition is met, charging is magnetically coupled to it if met, is not otherwise charged；If reserve battery is carried out for node
Power supply, sends charge request, is prepared as main battery and is magnetically coupled charging.
Brief description of the drawings
Fig. 1 is system block diagram of the present utility model
Fig. 2 is wireless communication module schematic diagram of the present utility model
Fig. 3 is sensor assembly schematic diagram of the present utility model
Fig. 4 is processor module schematic diagram of the present utility model
Fig. 5 is power module schematic diagram of the present utility model
Fig. 6 is structural design drawing of the present utility model
Fig. 7 is the workflow diagram of the utility model processor module
Embodiment
The utility model is described further below in conjunction with the accompanying drawings.
Chargeable node：
As shown in figure 1, the chargeable node of magnetic coupling resonance includes power module, processor module, sensor assembly and nothing
Line communication module.
1. wireless communication module：
As shown in Fig. 2 the 25 of wireless communication module U1,26 pins by electric capacity C11, C14, C9, C10 and inductance L2, L3,
L4 connects with antenna, and 22,23 pins connect with crystal oscillator X1, and 32,33 pins connect with crystal oscillator X2, the external precision resistance R1 of 30 pins
After be grounded, after 40 pin external capacitor C16 be grounded, 10,21,24,27,28,29,31,39 pins pass through inductance L1 access power supply
The power vd D_2 of module, 5,6,20,34,35,37,38 pins are debugging interface, 41 pins ground connection.U1 UART interface 17,16
Pin connects with processor U5 2,3 pins to carry out data transmission.
2. sensor assembly：
As shown in figure 3, sensor assembly includes temperature humidity sensor module U3, Smoke Sensor module U2 and condensation sensing
Device module U4.The pin of temperature humidity sensor module 2 connect pull-up resistor R3 connect with microprocessor U5 20 pins progress data biography
Defeated, 1 pin meets the power vd D_2 of power module, 4 pins ground connection.The pin of Smoke Sensor module 1,3,5 is connect in power module
Power vd D_3,4,6 pins are grounded by resistance R4 and electric capacity C22, and 6 pins connect with microprocessor U5 19 pins, 2 pins
Ground connection.Condensation sensor module U4 1 pin accesses power vd D_2,14 pins of 1 pin and microprocessor U5 by resistance R2
Connect, 2 pins ground connection.
3. processor module：
As shown in figure 4, microprocessor U5 the 9th pin is connected on VDD_2 power supplys and is grounded by electric capacity C23,5,6 draw
Pin meets clock crystal oscillator Y1, and 7 pins ground connection, 8 pins are grounded by electric capacity C27,2,3 pins be UART interface respectively and radio communication
The U1 of module UART interface 17,16 pins carry out data transmission, and 20 pins connect progress with Temperature Humidity Sensor U3 2 pins
Data transfer, 19 pins connect with Smoke Sensor U2 6 pins to carry out data transmission, 14 pins and the 1 of condensation sensor U4
Pin, which connects, to carry out data transmission, and 13,15 pins connect with U12, U17 of power module 8 pins respectively to carry out data transmission, 1,
10 pins connect with power module Q1, Q2 R14, R27 being connected respectively to be controlled to U11, U16,11,12 pins respectively with electricity
U10, U15 of source module 4 pins, which connect, to be controlled, and 4,18 pins are SWIM interfaces.
4. power module：
As shown in figure 5, the resonant body that power module is made up of coil L7 and electric capacity C28, C29, receives electromagnetic wave energy, warp
Bridge type rectification circuit D1, D2, D4 and D5 rectification, stable direct current signal is exported under filter capacitor C33, C35, C36 effect,
By integrated stable voltage circuit U8, voltage stabilizing is into VDD_1 power supplys under filter capacitor C38 and decoupling capacitor C37 effects.U8 output is made
For U11 input power, U11 BAT pins can charge to rechargeable battery.U11 is a single-unit lithium ion battery using permanent
Determine the linear charger of electric current/constant voltage.Its operating voltage VCC：- 0.3V~+8V；Supply current under standby mode：55uA；
BAT pin electric currents：Up to 1000mA programmable charge current.When battery dump energy is not enough, U11 starts to carry out battery
Charging, if cell voltage is less than+3V, charger low current enters line precharge to battery.When cell voltage exceedes+3V
When, charger is charged using constant current mode to battery, and charging current is determined by resistance R18, R14.As the close+4.2V of cell voltage
When, charging current is gradually reduced, and U11 enters constant-voltage charge pattern.When charging current, which is reduced to charging, terminates threshold value, charging week
Phase terminates.Battery protection unit is made up of U14 and U13, with overcharging, cross put, excessively stream and short-circuit protection function.Control of discharge list
Member is the U12 by microprocessor driven.Dump energy, voltage and the electric current of rechargeable battery are real by intelligent battery monitor U12
When monitor, processor can pass through 1-Wire buses obtain battery status information.Battery passes through integrated stable voltage circuit U7, in filtering
The lower voltage stabilizing of electric capacity C34 effects is powered into VDD_3 power supplys to the Smoke Sensor U2 in sensor assembly.Battery is by integrated steady
Volt circuit U6, voltage stabilizing is into VDD_2 power supplys under filter capacitor C30, C31 effect, to processor module, wireless communication module and biography
Sensor module is powered.
Power supply is by main battery and battery backup into dual power supply.Generally, main battery is responsible for powering to node,
When node main battery carries out wireless charging or failure, reserve battery is started working.
5. design of joints
Consider to update and easy to maintenance, the utility model uses three-decker modularized design scheme, as shown in Figure 6.On
Layer is wireless communication module, and middle level is sensor assembly and processor module, and lower floor is power module.
Main flow chart of the present utility model is as shown in Figure 7.On wireless chargeable node after electricity, initialization program is run.So
Memory block instruction is read afterwards, judges whether networking, after networking success, aggregation node instruction can be received, while collecting energy and biography
Feel information, carry out data processing.Detect the energy of the main battery and reserve battery in energy storage module；Judge main battery
Whether condition of power supply is met, if it is satisfied, being powered to node, reserve battery is off；Otherwise, standby electricity is judged
Whether pond meets condition of power supply, if it is satisfied, being powered to node, main battery is off；If main battery
Condition of power supply is all unsatisfactory for reserve battery, node in a dormant state, is waited and charged for it；If main battery enters for node
Row power supply, reserve battery is off, and judges whether reserve battery electricity meets charge condition, and it is carried out if met
Magnetic coupling charges, and does not otherwise charge；If reserve battery is powered for node, charge request is sent, main battery is prepared as
It is magnetically coupled charging.
Claims (2)
1. a kind of wireless chargeable node, it is characterised in that：It includes sensor assembly, the processor being connected with sensor assembly
Module, the wireless communication module being connected with processor module and respectively sensor assembly, processor module and radio communication
The power module of module for power supply；The power module includes obtaining the energy acceptance module of energy by magnetic coupling, connect with energy
Receive module connect the energy monitoring being controlled by processor module and protection module, connect with energy monitoring and protection module
Main battery and reserve battery；The processor module connects with power module, sensor assembly and wireless communication module；It is described
Sensor assembly connects with power module and processor module；The wireless communication module and power module and processor module phase
Connect, transmission dump energy data, sensor assembly gathered data etc.；Wireless chargeable node passes through electric quantity monitoring, rational management
Main battery or reserve battery are powered for node, realize that supplying cell does not charge, rechargeable battery is not powered.
2. according to the wireless chargeable node described in claim 1, it is characterised in that：In the energy monitoring and protection module
Power supply automatic switchover circuit is by the P-channel U12 of voltage detecting, current-limiting resistance Rs1 and R19 and prevents the D6 of electric current backflow from constituting；
U12 detects main battery and backup battery voltage, according to the magnitude of voltage of detection and the charging voltage threshold value being previously set, cuts automatically
Change main battery and reserve battery is powered for node.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621374368.5U CN206490838U (en) | 2016-12-13 | 2016-12-13 | Wireless chargeable node |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621374368.5U CN206490838U (en) | 2016-12-13 | 2016-12-13 | Wireless chargeable node |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206490838U true CN206490838U (en) | 2017-09-12 |
Family
ID=59769549
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621374368.5U Expired - Fee Related CN206490838U (en) | 2016-12-13 | 2016-12-13 | Wireless chargeable node |
Country Status (1)
| Country | Link |
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| CN (1) | CN206490838U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107733042A (en) * | 2017-11-15 | 2018-02-23 | 厦门华方软件科技有限公司 | A kind of self-powered Internet of Things identification device |
-
2016
- 2016-12-13 CN CN201621374368.5U patent/CN206490838U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107733042A (en) * | 2017-11-15 | 2018-02-23 | 厦门华方软件科技有限公司 | A kind of self-powered Internet of Things identification device |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170912 Termination date: 20181213 |
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| CF01 | Termination of patent right due to non-payment of annual fee |