CN109039388A - A kind of passive NB-IoT system based on wireless energy transfer - Google Patents
A kind of passive NB-IoT system based on wireless energy transfer Download PDFInfo
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- CN109039388A CN109039388A CN201810640688.8A CN201810640688A CN109039388A CN 109039388 A CN109039388 A CN 109039388A CN 201810640688 A CN201810640688 A CN 201810640688A CN 109039388 A CN109039388 A CN 109039388A
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- 239000003990 capacitor Substances 0.000 claims description 36
- 238000001514 detection method Methods 0.000 claims description 5
- BWSIKGOGLDNQBZ-LURJTMIESA-N (2s)-2-(methoxymethyl)pyrrolidin-1-amine Chemical compound COC[C@@H]1CCCN1N BWSIKGOGLDNQBZ-LURJTMIESA-N 0.000 claims description 3
- 239000013078 crystal Substances 0.000 claims description 3
- 230000006641 stabilisation Effects 0.000 claims 1
- 238000011105 stabilization Methods 0.000 claims 1
- 230000005540 biological transmission Effects 0.000 abstract description 4
- 238000004146 energy storage Methods 0.000 abstract description 4
- 238000005516 engineering process Methods 0.000 abstract description 4
- 230000007958 sleep Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 3
- 230000004907 flux Effects 0.000 description 3
- 229910052744 lithium Inorganic materials 0.000 description 3
- 238000005070 sampling Methods 0.000 description 3
- 230000007423 decrease Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 230000002618 waking effect Effects 0.000 description 2
- BRUQQQPBMZOVGD-XFKAJCMBSA-N Oxycodone Chemical compound O=C([C@@H]1O2)CC[C@@]3(O)[C@H]4CC5=CC=C(OC)C2=C5[C@@]13CCN4C BRUQQQPBMZOVGD-XFKAJCMBSA-N 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000005059 dormancy Effects 0.000 description 1
- 230000006266 hibernation Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B5/00—Near-field transmission systems, e.g. inductive or capacitive transmission systems
- H04B5/70—Near-field transmission systems, e.g. inductive or capacitive transmission systems specially adapted for specific purposes
- H04B5/79—Near-field transmission systems, e.g. inductive or capacitive transmission systems specially adapted for specific purposes for data transfer in combination with power transfer
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
- H02J50/20—Circuit arrangements or systems for wireless supply or distribution of electric power using microwaves or radio frequency waves
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/70—Services for machine-to-machine communication [M2M] or machine type communication [MTC]
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- Computer Networks & Wireless Communication (AREA)
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Abstract
The passive NB-IoT system based on wireless energy transfer that the invention discloses a kind of, it mainly include RECTIFYING ANTENNA, boost module, control module, switching circuit, accumulator and BC95 module, RECTIFYING ANTENNA connects boost module, boost module is separately connected control module, accumulator and switching circuit, it and is control module, accumulator and switching circuit provide stable power supply, the accumulator is separately connected with control module and switching circuit, switching circuit connects BC95 module, the minimum input voltage that control module passes through comparison input voltage and boost module, and then control switching of the boost module between suspend mode and operating mode.It is powered using wireless energy transmission technology to equipment, convenience and the flexibility of power supply can be greatlyd improve, substantially reduce the cost of manpower replacement.Using the energy storage vehicle of the technical program, charge and discharge number substantially increases the service life of battery up to 100,000 times or more, to extend the service life of NB-IoT terminal.
Description
Technical field
The present invention relates to field of wireless transmission, particularly, are related to a kind of passive NB-IoT system based on wireless energy transfer
System.
Background technique
Narrowband Internet of Things (Narrow Band Internet of Things, abbreviation NB-IoT) becomes the one of all things on earth interconnection
A important branch has the characteristics that wide covering, low-power consumption, low cost, big connection.Traditional NB-IoT (narrowband Internet of Things) terminal is set
Standby to be battery powered, because terminal device size is usually smaller, electric quantity of lithium battery is limited, causes replacement battery cycle short, manpower
Material resources increased costs.Particularly, under some special application environments, such as underground, high mountain, forest, due to NB-IoT terminal
The wide spreadability of equipment, replacement battery difficulty are larger.In addition, traditional lithium battery haves the defects that charge and discharge number is less, battery
Service life is shorter, and the service life of terminal is caused to shorten, since lithium battery is sensitive to temperature and humidity, in field environment in use,
There is also security risk problems.
Summary of the invention
For overcome the deficiencies in the prior art, the present invention provides a kind of passive NB-IoT system based on wireless energy transfer
System, can greatly improve convenience, flexibility and the safety of power supply, substantially reduce the cost of manpower replacement.
The technical solution adopted by the present invention to solve the technical problems is:
A kind of passive NB-IoT system based on wireless energy transfer mainly includes RECTIFYING ANTENNA, boost module, control mould
Block, switching circuit, accumulator and BC95 module, the RECTIFYING ANTENNA connect boost module, and the boost module is separately connected
Control module, accumulator and switching circuit, and stable power supply is provided for control module, accumulator and switching circuit, institute
It states accumulator to be separately connected with control module and switching circuit, the switching circuit connects BC95 module, the control mould
Block controls boost module in suspend mode and Working mould by comparing the minimum input voltage of input voltage and boost module
Switching between formula, the control module include an ADC chip, and the ADC chip connects a programmable timer chip U4,
The Mos_d pin of the P1.0 pin connection programmable timer chip U4 of ADC chip, the P1.1 pin connection of ADC chip can compile
The Done pin of journey timer chip U4, the Tcal pin of the P1.2 pin connection programmable timer chip U4 of ADC chip, can
Program D0, D1, D2, GND, Dnc pin ground connection of timer chip U4, Pgood, Vdd pin of programmable timer chip U4
The avcc pin of power supply VCC, ADC chip meets power supply VCC by resistance R12, and the avss pin of ADC chip is connect by resistance R13
Power supply VCC, is connected with capacitor C10 between the avcc pin and avss pin, the avss pin of ADC chip passes through capacitor
C11 meets the pin PJ.5 that the avss pin of pin PJ.4, the ADC chip of ADC chip connects ADC chip by capacitor C12, described
All there is crystal oscillator Y1 between PJ.4 pin and PJ.5 pin, the dvcc pin of ADC chip connects power supply VCC, the dvss pin of ADC chip
Ground connection, is connected with capacitor C9, the both ends capacitor C9 are parallel with capacitor C8, ADC chip between the dvcc pin and dvss pin
The P4.6 pin that P4.5 pin connects up voltage test side Vdet, ADC chip meets the enable end EN of booster circuit, ADC chip
Pin meets power supply VCC by resistance R3, ADC chipPin is grounded by capacitor C7.
Preferably, the boost module circuit includes booster chip U1, NC, VSS of the booster chip U1,
VBAT_PRI、Pin ground connection, the VRDIV pin of booster chip U1 by connection resistance R1 and
The VRDIV pin of resistance R3 ground connection, booster chip U1 passes through connection resistance R2, resistance R3 and resistance R5 ground connection, booster core
The VBAT_OV pin of piece U1 is connected between resistance R1 and resistance R3, the OK_PROG pin of booster chip U1 be connected to resistance R4 and
Between resistance R5, the OK_HYST pin of booster chip U1 is connected between resistance R2 and resistance R4, booster chip U1's
PowerPad, VSS pin ground connection, the VREF_SAMP pin of booster chip U1 are grounded by capacitor C5, booster chip U1's
For VIN-DC pin by point capacitor C4 ground connection, the both ends capacitor C4 are connected in parallel with a capacitor C3, the VIN-DC pin of booster chip U1
RECTIFYING ANTENNA and voltage detection terminal Vdet are connect, the LBOOST pin of booster chip U1 is connected to the VIN- by inductance L1
VOC-SAMP the and VSTOR pin of DC pin, booster chip U1 is grounded by capacitor C1, the VOC-SAMP of booster chip U1
It is output end VSTOR with VSTOR pin wiring, the VBAT_OK pin of booster chip U1 is indication signal end VBAT_OK, is risen
The VBAT_SEC pin of depressor chip U1 connects accumulator.
Preferably, the accumulator is supercapacitor, and supercapacitor is a kind of novel energy storage apparatus, it has
Power density is high, the charging time is short, long service life and it is environmentally protective the features such as.
Preferably, the switching circuit is a ultralow leakage current load switch, including chip U2, the load are opened
Vin, Vbias pin for closing U2 meet output end VSTOR, and the ON pin of the load switch U2 meets indication signal end VBAT_OK, institute
The GND pin ground connection of load switch U2 is stated, the Vout pin of the load switch U2 connects load.
Preferably, the BC9 module has two kinds of operating modes of PSW and eDRX, in PSW (power-saving technology) operating mode
Under, terminal device is still connected with network, but signal can not be received before automatically waking up, and this deep sleep mode helps to save electricity
Source；And under eDRX (extension is discontinuous to be received) operating mode, sleep cycle can be extended at the idling mode, set with reducing to receive
Standby unnecessary starting.
Beneficial effects of the present invention:
By above scheme it is found that proposing a kind of passive NB-IoT system based on wireless energy transfer.Use wireless energy
Transmission technology powers to equipment, can greatly improve convenience and the flexibility of power supply, substantially reduces the cost of manpower replacement.It adopts
With the energy storage vehicle of the technical program, for charge and discharge number up to 100,000 times or more, substantially increase battery uses the longevity
Life, to extend the service life of NB-IoT terminal.
Detailed description of the invention
Present invention will be further explained below with reference to the attached drawings and examples.
Fig. 1 is system block diagram of the invention；
Fig. 2 is boost module structural schematic diagram of the present invention；
Fig. 3 is switching circuit schematic diagram of the present invention；
Fig. 4 is main control module structural schematic diagram of the present invention；
Fig. 5 is main program flow chart of the present invention；
Fig. 6 is subroutine flow chart of the present invention.
Specific embodiment
Referring to Fig.1, a kind of passive NB-IoT system based on wireless energy transfer mainly includes RECTIFYING ANTENNA, boosting mould
Block, control module, switching circuit, accumulator and BC95 module, the RECTIFYING ANTENNA connect boost module, the boost module
It is separately connected control module, accumulator and switching circuit, and is provided for control module, accumulator and switching circuit stable
Power supply, the accumulator are separately connected with control module and switching circuit, and the switching circuit connects BC95 module, described
Control module by the minimum input voltage of comparison input voltage and boost module, and then control boost module in suspend mode and
Switching between operating mode, the control module include an ADC chip, and the ADC chip connects a programmable timer
The Mos_d pin of the P1.0 pin connection programmable timer chip U4 of chip U4, ADC chip, the P1.1 pin of ADC chip connect
Meet the Done pin of programmable timer chip U4, the Tcal of the P1.2 pin connection programmable timer chip U4 of ADC chip
Pin, D0, D1, D2, GND, Dnc pin ground connection of programmable timer chip U4, the Pgood of programmable timer chip U4,
The avcc pin of Vdd pin power supply VCC, ADC chip meets power supply VCC by resistance R12, and the avss pin of ADC chip passes through electricity
Resistance R13 meets power supply VCC, and capacitor C10 is connected between the avcc pin and avss pin, and the avss pin of ADC chip is logical
The avss pin for crossing pin PJ.4, the ADC chip that capacitor C11 connects ADC chip meets the pin PJ.5 of ADC chip by capacitor C12,
All there is crystal oscillator Y1 between the PJ.4 pin and PJ.5 pin, the dvcc pin of ADC chip meets power supply VCC, the dvss of ADC chip
Pin ground connection, is connected with capacitor C9, the both ends capacitor C9 are parallel with capacitor C8, ADC core between the dvcc pin and dvss pin
The P4.6 pin that the P4.5 pin of piece connects up voltage test side Vdet, ADC chip connects the enable end of booster circuitADC chip
'sPin meets power supply VCC by resistance R3, ADC chipPin is grounded by capacitor C7.
The boost module circuit includes booster chip U1, NC, VSS of the booster chip U1, VBAT_PRI,Pin ground connection, the VRDIV pin of booster chip U1 are connect by connecting resistance R1 and resistance R3
The VRDIV pin on ground, booster chip U1 is grounded by connection resistance R2, resistance R3 and resistance R5, booster chip U1's
VBAT_OV pin is connected between resistance R1 and resistance R3, and the OK_PROG pin of booster chip U1 is connected to resistance R4 and resistance R5
Between, the OK_HYST pin of booster chip U1 is connected between resistance R2 and resistance R4, the PowerPad of booster chip U1,
VSS pin ground connection, the VREF_SAMP pin of booster chip U1 are grounded by capacitor C5, and the VIN-DC of booster chip U1 draws
Foot is connected in parallel with a capacitor C3 by point capacitor C4 ground connection, the both ends capacitor C4, and the VIN-DC pin of booster chip U1 connects rectification day
The LBOOST pin of line and voltage detection terminal Vdet, booster chip U1 are connected to the VIN-DC pin by inductance L1,
VOC-SAMP the and VSTOR pin of booster chip U1 is grounded by capacitor C1, the VOC-SAMP and VSTOR of booster chip U1
Pin wiring is output end VSTOR, and the VBAT_OK pin of booster chip U1 is indication signal end VBAT_OK, booster chip
The VBAT_SEC pin of U1 connects accumulator.
The accumulator is supercapacitor, and supercapacitor is a kind of novel energy storage apparatus, it has power close
Degree is high, the charging time is short, long service life and it is environmentally protective the features such as.
The switching circuit is a ultralow leakage current load switch, including chip U2, the load switch U2's
Vin, Vbias pin meet output end VSTOR, and the ON pin of the load switch U2 connects indication signal end VBAT_OK, the load
The GND pin of switch U2 is grounded, and the Vout pin of the load switch U2 connects load.
The BC9 module has two kinds of operating modes of PSW and eDRX, and under PSW (power-saving technology) operating mode, terminal is set
It is standby to be still connected with network, but signal can not be received before automatically waking up, this deep sleep mode helps to save power supply；And
Under eDRX (extension is discontinuous to be received) operating mode, sleep cycle can be extended, at the idling mode to reduce receiving device not
Necessity starting.
Wherein A is the RECTIFYING ANTENNA；B is the super low-power consumption booster chip, has battery management and suspend mode mould
Formula function；C in dotted line frame is the accumulator, i.e. supercapacitor；The end D is voltage detection terminal Vdet, connection control
Module detects input voltage；The end E is enable end EN, and link control module controls suspend mode/operating mode switching of B；F
End is output end VSTOR；The end G is indication signal end VBAT_OK, closure/disconnection control terminal of connection switch circuit.
The effect of RECTIFYING ANTENNA part is the microwave energy of receiver/transmitter machine transmission and is converted to DC energy.It is rectifying
The next stage of antenna connects an energy management module, the boosting part in module can be provided for late-class circuit one it is stable
Operating voltage.The output end of energy management module connects an accumulator and a switching circuit, and accumulator is for storing
Electric flux is that BC95 module and main control module are powered, and switching circuit then controls between BC95 module and accumulator
On-off.In energy management module main control module connection boost module enable end and input terminal, by comparison input voltage and
The minimum input voltage of boost module, and then control switching of the boost module between suspend mode and operating mode.Specific implementation
Process is as follows: when the output voltage for detecting RECTIFYING ANTENNA is higher than minimum when boost module works normally, energy
The control section for measuring management module can send a control signal to boost module and be at operating mode；It is rectified when detecting
When the output voltage of antenna is lower than minimum when boost module works normally, the control section meeting of energy management module
A control signal, which is sent, to boost module is at sleep pattern.
As shown in Fig. 2, the boost module includes super low-power consumption booster chip and its peripheral circuit.The ultralow function
Booster chip U1 is consumed, has battery management and suspend mode function；The accumulator, i.e. supercapacitor；Voltage inspection
End Vdet is surveyed, link control module detects input voltage；Enable end EN link control module, control chip U1's stops
Dormancy/operating mode switching；Output end VSTOR；Indication signal end VBAT_OK, closure/disconnection control terminal of connection switch circuit.
The microwave energy received is converted into DC energy by RECTIFYING ANTENNA, and is transferred to the super low-power consumption booster
It boosts.The minimum input voltage of the booster is 100mV, and output voltage values can be arranged using resistance, output valve setting
Range is 1.8V to 5.5V, can meet the voltage requirement of different loads.It is also equipped with battery management function simultaneously, specifically,
When accumulator is charged to the voltage threshold of setting by booster, the end VBAT_OK, which issues a high level signal, makes switching circuit
Closure, electric flux can be output to load from supercapacitor by the end VSTOR；It is when accumulator is in under-voltage condition, i.e., low
In the voltage threshold of setting, the end VBAT_OK, which issues a low level signal, disconnects switching circuit, and accumulator is isolated and bears
It carries, accumulator carries out accumulation of energy.In addition, the booster has suspend mode, by giving enable endOne high level signal makes
It enters suspend mode.In the hibernation mode, power consumption can be down to 5nA.
As shown in figure 3, switching circuit is made of a load switch with low current leakage.It is defeated when the booster
Voltage is lower than preset threshold voltage out, and the end VBAT_OK exports low level signal, is in an off state load switch；Work as institute
The output voltage for stating booster is higher than preset threshold voltage, and the end VBAT_OK exports high level signal, is closed load switch,
Electric flux can be transferred to load by output end VOUT.
As shown in figure 4, control module is a microprocessor.Preferably, the present invention uses micro- place of a super low-power consumption
Manage device.The microprocessor has ADC, while also there are two types of low-power consumption modes for tool: low-power consumption mode one and low-power consumption mode two.Institute
The CPU for making microprocessor is in power-down state by the low-power consumption mode one stated, and section clock keeps working condition, the sampling of ADC
It can be normally carried out；The CPU for making microprocessor is in power-down state by the low-power consumption mode two, and clock system is closed, IO shape
State locking, is preferably minimized power consumption.The input terminal that the end D in figure, i.e. voltage detection terminal Vdet connect the booster, utilizes micro- place
The ADC of reason device samples input voltage, is carried out judging whether to make the booster to enter according to the voltage value sampled
Suspend mode；The end E, i.e.,End connects the enable end of the booster, controls the suspend mode of booster and cutting for operating mode
It changes.Microprocessor can be powered by the supercapacitor, be not necessarily to external power supply.Below with reference to the program circuit of Fig. 5-Fig. 6
Figure is illustrated control logic.
The initialization for carrying out microprocessor first, then executes a subprogram.Subprogram enters institute after executing
The low-power consumption mode two stated.When not receiving wake-up signal, microprocessor is maintained at low-power consumption mode two；It is waken up when receiving
Signal, microprocessor exit low-power consumption mode two.It is a circulation from execution subroutine to the process for exiting low-power consumption mode two.
Main program cycle execution subroutine and enter low-power consumption mode two, make microprocessor between operating mode and low-power consumption mode
Constantly switch.Wake-up signal is provided by a low power consuming clock module.Due to need to only be held every for a period of time in practical application scene
One sub-subroutine of row, so the time interval that the present invention sets two wake-up signals is much larger than microprocessor work mode time,
Therefore the microprocessor most of the time is in low-power consumption mode, further decreases the total power consumption of system.
The process of the subprogram is as follows: starting ADC first samples the input voltage of boost module.It is sampling
During, microprocessor enters the first-class completion to be sampled of the low-power consumption mode.After the completion of sampling, judge that input voltage is
The no minimum operating voltage 100mV greater than the booster.If input voltage is greater than 100mV, microprocessor is i.e. to booster
Enable end EN sends low level signal, makes it into operating mode；If input voltage is less than 100mV, microprocessor is i.e. to boosting
The enable end of deviceHigh level signal is sent, suspend mode is made it into.
In addition, the configuration that microprocessor carries out clock system appropriate can further decrease the power consumption of system.
The above only better embodiment of the invention, but the present invention is not limited to above-described embodiments, if its with
Any same or similar means reach technical effect of the invention, should all fall under the scope of the present invention.
Claims (5)
1. a kind of passive NB-IoT system based on wireless energy transfer mainly includes RECTIFYING ANTENNA, boost module, control mould
Block, switching circuit, accumulator and BC95 module, it is characterised in that: the RECTIFYING ANTENNA connects boost module, the boosting mould
Block is separately connected control module, accumulator and switching circuit, and provides stabilization for control module, accumulator and switching circuit
Power supply, the accumulator is separately connected with control module and switching circuit, and the switching circuit connects BC95 module, institute
Control module is stated by the minimum input voltage of comparison input voltage and boost module, and then controls boost module in suspend mode
Switching between operating mode, the control module include an ADC chip, and the ADC chip connects a programmable Timer
The Mos_d pin of the P1.0 pin connection programmable timer chip U4 of device chip U4, ADC chip, the P1.1 pin of ADC chip
The Done pin of programmable timer chip U4 is connected, the P1.2 pin connection programmable timer chip U4's of ADC chip
Tcal pin, D0, D1, D2, GND, Dnc pin ground connection of programmable timer chip U4, programmable timer chip U4's
The avcc pin of Pgood, Vdd pin power supply VCC, ADC chip connects power supply VCC, the avss pin of ADC chip by resistance R12
Power supply VCC is met by resistance R13, is connected with capacitor C10, the avss of ADC chip between the avcc pin and avss pin
Pin connects drawing for ADC chip by capacitor C12 by the avss pin of capacitor C11 pin PJ.4, the ADC chip for connecing ADC chip
Foot PJ.5, all there is crystal oscillator Y1 between the PJ.4 pin and PJ.5 pin, the dvcc pin of ADC chip connects power supply VCC, ADC core
The dvss pin of piece is grounded, and capacitor C9 is connected between the dvcc pin and dvss pin, the both ends capacitor C9 are parallel with capacitor
The P4.6 pin that the P4.5 pin of C8, ADC chip connects up voltage test side Vdet, ADC chip meets the enable end EN of booster circuit,
ADC chipPin meets power supply VCC by resistance R3, ADC chipPin is grounded by capacitor C7.
2. a kind of passive NB-IoT system based on wireless energy transfer according to claim 1, it is characterised in that: described
Boost module circuit includes booster chip U1, NC, VSS of the booster chip U1, VBAT_PRI,Pin ground connection, the VRDIV pin of booster chip U1 are connect by connecting resistance R1 and resistance R3
The VRDIV pin on ground, booster chip U1 is grounded by connection resistance R2, resistance R3 and resistance R5, booster chip U1's
VBAT_OV pin is connected between resistance R1 and resistance R3, and the OK_PROG pin of booster chip U1 is connected to resistance R4 and resistance R5
Between, the OK_HYST pin of booster chip U1 is connected between resistance R2 and resistance R4, the PowerPad of booster chip U1,
VSS pin ground connection, the VREF_SAMP pin of booster chip U1 are grounded by capacitor C5, and the VIN-DC of booster chip U1 draws
Foot is connected in parallel with a capacitor C3 by point capacitor C4 ground connection, the both ends capacitor C4, and the VIN-DC pin of booster chip U1 connects rectification day
The LBOOST pin of line and voltage detection terminal Vdet, booster chip U1 are connected to the VIN-DC pin by inductance L1,
VOC-SAMP the and VSTOR pin of booster chip U1 is grounded by capacitor C1, the VOC-SAMP and VSTOR of booster chip U1
Pin wiring is output end VSTOR, and the VBAT_OK pin of booster chip U1 is indication signal end VBAT_OK, booster chip
The VBAT_SEC pin of U1 connects accumulator.
3. a kind of passive NB-IoT system based on wireless energy transfer according to claim 1 or 2, it is characterised in that:
The accumulator is supercapacitor.
4. a kind of passive NB-IoT system based on wireless energy transfer according to claim 2, it is characterised in that: described
Switching circuit be a ultralow leakage current load switch, including chip U2, Vin, Vbias pin of the load switch U2
Output end VSTOR is met, the ON pin of the load switch U2 meets indication signal end VBAT_OK, and the GND of the load switch U2 draws
Foot ground connection, the Vout pin of the load switch U2 connect load.
5. a kind of passive NB-IoT system based on wireless energy transfer according to claim 1, it is characterised in that: described
BC9 module has two kinds of operating modes of PSW and eDRX.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110401693A (en) * | 2019-06-05 | 2019-11-01 | 西安广和通无线通信有限公司 | Medical data transmission method, device, electronic equipment and storage medium |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105634103A (en) * | 2016-02-23 | 2016-06-01 | 广东顺德中山大学卡内基梅隆大学国际联合研究院 | Power supply management system and method applicable to wirelessly powered sensor node |
| CN206353863U (en) * | 2016-12-19 | 2017-07-25 | 上海移远通信技术股份有限公司 | NB IoT radio communication devices |
| CN107016434A (en) * | 2017-05-18 | 2017-08-04 | 福建时雨科技有限公司 | A kind of electronic tag based on LPWAN and RFID technique |
| CN206851042U (en) * | 2017-06-21 | 2018-01-05 | 福建强闽信息科技有限公司 | A kind of Portable narrow band Internet of Things signal sniff instrument |
| CN206923052U (en) * | 2017-06-28 | 2018-01-23 | 四川通信科研规划设计有限责任公司 | A kind of general purpose data terminal based on NB IoT |
| CN108024226A (en) * | 2018-01-04 | 2018-05-11 | 李江成 | A kind of low-consumption wireless sensing data harvester, system and method based on NB-IoT |
| CN108123524A (en) * | 2017-12-28 | 2018-06-05 | 成都三朵云科技有限公司 | A kind of power supply circuit and electric power monitoring system |
-
2018
- 2018-06-21 CN CN201810640688.8A patent/CN109039388B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105634103A (en) * | 2016-02-23 | 2016-06-01 | 广东顺德中山大学卡内基梅隆大学国际联合研究院 | Power supply management system and method applicable to wirelessly powered sensor node |
| CN206353863U (en) * | 2016-12-19 | 2017-07-25 | 上海移远通信技术股份有限公司 | NB IoT radio communication devices |
| CN107016434A (en) * | 2017-05-18 | 2017-08-04 | 福建时雨科技有限公司 | A kind of electronic tag based on LPWAN and RFID technique |
| CN206851042U (en) * | 2017-06-21 | 2018-01-05 | 福建强闽信息科技有限公司 | A kind of Portable narrow band Internet of Things signal sniff instrument |
| CN206923052U (en) * | 2017-06-28 | 2018-01-23 | 四川通信科研规划设计有限责任公司 | A kind of general purpose data terminal based on NB IoT |
| CN108123524A (en) * | 2017-12-28 | 2018-06-05 | 成都三朵云科技有限公司 | A kind of power supply circuit and electric power monitoring system |
| CN108024226A (en) * | 2018-01-04 | 2018-05-11 | 李江成 | A kind of low-consumption wireless sensing data harvester, system and method based on NB-IoT |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110401693A (en) * | 2019-06-05 | 2019-11-01 | 西安广和通无线通信有限公司 | Medical data transmission method, device, electronic equipment and storage medium |
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Effective date of registration: 20240604 Address after: 510000 No. 135 West Xingang Road, Guangdong, Guangzhou Patentee after: SUN YAT-SEN University Country or region after: China Address before: No.9, Nanguo East Road, Yunlu community residents committee, Daliang sub district office, Shunde District, Foshan City, Guangdong Province, 528399 Patentee before: FOSHAN SHUNDE SUN YAT-SEN UNIVERSITY Research Institute Country or region before: China Patentee before: SYSU-CMU SHUNDE INTERNATIONAL JOINT Research Institute Patentee before: SUN YAT-SEN University |