CN109066933A - A kind of wireless charging method and device of web camera - Google Patents
A kind of wireless charging method and device of web camera Download PDFInfo
- Publication number
- CN109066933A CN109066933A CN201811057823.2A CN201811057823A CN109066933A CN 109066933 A CN109066933 A CN 109066933A CN 201811057823 A CN201811057823 A CN 201811057823A CN 109066933 A CN109066933 A CN 109066933A
- Authority
- CN
- China
- Prior art keywords
- wireless charging
- web camera
- terminal
- transmitting terminal
- state
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims abstract description 23
- 230000005611 electricity Effects 0.000 claims abstract description 14
- 238000012544 monitoring process Methods 0.000 claims abstract description 14
- 238000001514 detection method Methods 0.000 claims description 19
- 238000006243 chemical reaction Methods 0.000 claims description 8
- 230000008569 process Effects 0.000 claims description 5
- 230000002452 interceptive effect Effects 0.000 claims description 4
- 230000015572 biosynthetic process Effects 0.000 claims description 2
- 230000008878 coupling Effects 0.000 claims description 2
- 238000010168 coupling process Methods 0.000 claims description 2
- 238000005859 coupling reaction Methods 0.000 claims description 2
- 230000008447 perception Effects 0.000 claims description 2
- 230000001360 synchronised effect Effects 0.000 claims description 2
- 238000004146 energy storage Methods 0.000 abstract description 3
- 230000006870 function Effects 0.000 description 16
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 11
- 229910052744 lithium Inorganic materials 0.000 description 11
- 230000005540 biological transmission Effects 0.000 description 9
- 238000005516 engineering process Methods 0.000 description 6
- 238000004891 communication Methods 0.000 description 5
- 230000008859 change Effects 0.000 description 4
- 238000004804 winding Methods 0.000 description 4
- 238000011161 development Methods 0.000 description 3
- 238000004080 punching Methods 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 230000006698 induction Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- 238000003491 array Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005674 electromagnetic induction Effects 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 230000036039 immunity Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 238000004886 process control Methods 0.000 description 1
- 238000011897 real-time detection Methods 0.000 description 1
- 230000001953 sensory effect Effects 0.000 description 1
Classifications
-
- H02J7/025—
-
- 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
- H02J50/10—Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling
-
- 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
- H02J50/80—Circuit arrangements or systems for wireless supply or distribution of electric power involving the exchange of data, concerning supply or distribution of electric power, between transmitting devices and receiving devices
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/50—Constructional details
Abstract
The invention discloses a kind of wireless charging method of web camera and devices, the program is mainly cooperatively formed by wireless charging transmitting terminal and wireless charging receiving terminal, and the control of charged state and charging rate can be carried out according to the electricity and charge characteristic of network shooting self-contained battery.This programme can allow web camera charging in a manner of wireless charging to internal electric energy storage device, guarantee its power supply capacity, web camera is allowed to leave the constraint of electric wire completely, allow user web camera place in any position with any angle, accomplish a kind of mobile monitoring function of any time, the mobility and scalability for considerably increasing product, improve the experience of user.
Description
Technical field
The present invention relates to protection and monitor fields, and in particular to the wireless charging technology of web camera.
Background technique
With the development of the electronics such as wireless image transmission and infrared perception, network, sensing technology and algorithm, in particular with complete
The rapid expanding and the more and more demands for experience of user of ball safety monitoring demand have also greatly pushed the hair of web camera
Exhibition.A new generation's video camera caused by a combination traditional cameras of web camera and network and intelligent sensing technology, as long as
Having configured network can use, and cooperate without computer, without video frequency collection card, do not monitor local area limit, anywhere open
Webpage and intelligent terminal software can monitor, and can accomplish the crawl of real time monitoring and timely video image, considerably increase peace
Overall coefficient.
Increasing as web camera is universal inside domestic applications, with user to mobile safety monitoring demand
Add, " line " just selects maximum constraint at position, this line includes ethernet line and supply lines, and with WIFI big data function
The fast development of energy chip, ethernet line is gradually by IEEE802.11AC WIFI chip inside web camera product
It is substituted, but supply lines still restrains web camera, allows total more lightweight home network video cameras can not be according to user
Idea indiscriminately ad. as one wishes put, so the problem of wireless penetration of power supply is this field urgent need to resolve.
Summary of the invention
Have the defects that rely on supply lines physical location for existing network video camera, needs a kind of new network shooting
Machine power supply plan.
For this purpose, realizing the purpose of the present invention is to provide a kind of wireless charging method of web camera with wireless charging
Mode charge to web camera；A kind of web camera that can be realized this method is additionally provided on this basis
Wireless charging device.
In order to achieve the above object, the wireless charging method of web camera provided by the invention comprising:
Wireless charging transmitting terminal carries out basic information with wireless charging receiving terminal and interacts, and wireless charging transmitting terminal enters charging
Operating mode；
Wireless charging receiving terminal detects web camera current electric quantity；
When current voltage value is lower than battery low-voltage threshold values, wireless charging receiving terminal notifies wireless charging transmitting terminal to enter
" pre- trickle charge " state charges；It is 3W that transmitting terminal, which controls output power by PWM duty cycle, under " pre- trickle charge " state；
When current voltage value is not less than battery low-voltage threshold values, further detect whether voltage value has reached preset electricity
The value of pressure；
When voltage value is less than preset voltage, wireless charging receiving terminal notifies wireless charging transmitting terminal to enter " fast charge " state
It charges, otherwise wireless charging transmitting terminal is notified to charge into " rear trickle charge " state；The transmitting terminal under " fast charge " state
Output power be 10W, it is 3W that transmitting terminal, which controls output power by PWM duty cycle, under " completely filling afterwards " state.
Further, when wireless charging receiving terminal, which detects, does not have load current, then wireless charging transmitting terminal is notified to stop
Only charge.
Further, the basic information interactive process packet between the wireless charging transmitting terminal and wireless charging receiving terminal
It includes:
Wireless charging transmitting terminal perceives loading condition to be confirmed whether to need to transmit PING letter by way of emitting electric energy
Breath；Wireless charging transmitting terminal has detected whether load by perceiving the variation of impedance value, once wireless charging receiving terminal coil
When close to wireless charging transmitting terminal, the impedance of wireless charging transmitting terminal can just change, and wireless charging receiving terminal is exactly at this time
The load that transmitting terminal is perceived；；
Wireless charging transmitting terminal does not receive preset feedback information after sending PING information in the given time, then judges
This load is non-chargeable load, must not send electric energy；
Wireless charging transmitting terminal receives wireless charging receiving terminal according to receiving after sending PING information in the given time
The PONG information fed back of PING information after, then enter charge mode.
Further, after entering " fast charge " state between wireless charging transmitting terminal and wireless charging receiving terminal, wireless charging
The temperature value of electric receiving end then real-time monitoring battery then notifies wireless charging transmitting terminal to enter when temperature is more than overheat threshold value
Trickle charge state charges, and starts timer and persistently detect state of temperature, when temperature is lower than safety door limit value, then notifies nothing
Line charge electricity transmitting terminal restores to fast charge state to charge.
It further, further include that wireless charging state and/or current network video camera is whole in the wireless charging method
End electric power storage status information is synchronized in the intelligent terminal of user, and is detecting that web camera terminal battery electricity quantity is too low, is stood
Start alert mode, push warning information prompts user to the intelligent terminal of user, and removes and accuse in time after wireless charging
Alert state.
In order to achieve the above object, the wireless charging device of web camera provided by the invention, comprising:
The inside of web camera is arranged in wireless charging receiving terminal, the wireless charging receiving terminal, and controls connection net
Battery in network video camera, the wireless charging receiving terminal can receive the electromagnetic signal that wireless charging transmitting terminal is sent and form phase
The electric current answered is charged to battery and is monitored the state of battery；
Wireless charging transmitting terminal, the external alternating current of wireless charging transmitting terminal, and with wireless charging receiving terminal wireless coupling,
Receive the information and electric current formation electromagnetic signal is sent to wireless charging receiving terminal that wireless charging receiving terminal is sent；
It is configured as between the wireless charging receiving terminal and wireless charging transmitting terminal according to above-mentioned wireless charging method pair
Web camera carries out wireless charging.
Further, the wireless charging transmitting terminal mainly includes emission mode control unit, AC/DC conversion module, drives
Dynamic device and transmitting coil, the external alternating current of AC/DC conversion module, and connect with driver, the driver driving
Connect transmitting coil, the emission mode control unit control connection driver；The emission mode control unit is according to wireless
The working frequency for the command information adjust drivers that charging receiving end provides emits electric energy to control transmitting coil.
Further, the emission mode control unit is connected and composed by controller and detection unit module, the control
Device control connection driver, the detection unit module connection driver and controller.
Further, the transmitting coil is that three-winding intersects stack manner.
Further, the wireless charging receiving terminal includes receiving coil, rectification module, voltage regulator module and control
Device, the receiving coil are connect with rectification module, and the rectification module is connect with voltage regulator module, the voltage regulator module
The battery module being connected in web camera；Battery module in controller control connection web camera and
Receiving coil.
Further, include battery charging management module in the web camera, be connected with wireless charging receiving terminal
The video image processing module of battery status detection module, web camera, wireless communication module and its routing unit.
This programme can allow web camera charging in a manner of wireless charging to internal electric energy storage device, guarantee its confession
Electric energy power allows web camera to leave the constraint of electric wire completely, and user places web camera in any position
With any angle, accomplishes a kind of mobile monitoring function of any time, considerably increase the mobility and scalability of product, mention
The experience of user is risen.
Furthermore this programme passes through real-time load detecting and voltage and its temperature detection when carrying out wireless charging management
To realize efficient wireless charging function, it can be achieved that carrying out charged state according to the electricity of network shooting self-contained battery and charge characteristic
It is controlled with the real-time dynamic of charging rate, it is ensured that guarantee the maximum service efficiency of wireless charging while the service life of lithium battery.
Furthermore this programme is applied equally to the charging function of all smart machines for having mobile demand with power reservoir capacity
Can, allow these smart machines that can accomplish real mobility and convenience.
In addition, this programme is also applied for difficult wiring or winding displacement easily along bad application scenarios, come in a manner of wireless charging
Avoid the safety of physical connection bring and integrality demand.
Detailed description of the invention
The present invention is further illustrated below in conjunction with the drawings and specific embodiments.
Fig. 1 is the structural schematic diagram of web camera wireless charging device in present example；
Fig. 2 is the charging flow figure of web camera wireless charging device in present example；
Fig. 3 is the temperature control flow figure of web camera wireless charging device in present example；
Fig. 4 be present example in web camera work on power after battery detecting flow chart.
Specific embodiment
In order to be easy to understand the technical means, the creative features, the aims and the efficiencies achieved by the present invention, tie below
Conjunction is specifically illustrating, and the present invention is further explained.
With the continuous breakthrough and development of wireless charging technology, wireless charging gradually tends to mature and perfect, charge efficiency
Also it is continuously improved, the following all kinds of wireless charging schemes are also slowly understood and received by user.This programme is based on
The principle of wireless charging provides power supply for web camera and supports, so that putting for web camera can be detached from charging cable
Worry can indiscriminately ad. as one wishes place at an arbitrary position according to the requirement of user.
For this purpose, this example provide a kind of web camera wireless charging device will by the way of non-physical contact
The method measured every sky transmission carries out electric power storage to realize the power supply to IP Camera.
Here the non-physical way of contact is that the transmission of electric energy is carried out using electromagnetic induction principle, passes through coil generating electromagnetic
Realize wireless transmission.This induction wireless charging mode is very suitable to short distance charging, high conversion efficiency, be suitble to 5W~
The transimission power of 15W.
Referring to Fig. 1 which shows a kind of web camera wireless charging device that this example provides based on the above principles
Topology example.
As seen from the figure, the web camera wireless charging device 100 is mainly by wireless charging receiving unit 110 and wireless charging
Electric transmitting unit 120, which cooperates, to be constituted.
Wherein, wireless charging transmitting unit 120 constitutes corresponding wireless charging transmitting station, can directly external alternating current (such as
220V forceful electric power), and convert the current to electromagnetic signal and externally export；
Wireless charging receiving unit 110 can be integrated in web camera main body 200, form movable wireless charging net
Network camera body, for supporting the security monitoring function of wireless real-time imaging and video capture；Wireless charging receives single simultaneously
Member 110 can the electromagnetic signal that externally sends of induction wireless charging transmitting unit 120, and the electromagnetic signal received is converted into
Battery in electric current supply network camera body 200 charges.
At the same time, wireless charging transmitting unit 120 also passes through when being cooperated with wireless charging receiving unit 110
Load detecting and voltage and its temperature detection realize efficient wireless charging function.
In specific implementation, band can be used in the web camera main body 200 being related in this example to this wireless charging scheme
There is the IPC network video camera (but it is not limited to this) of wireless image transmission, IPC platform and applying unit 210 is arranged inside and can fill
Electric lithium battery 220, video image processing, wireless communication and its road of IPC platform and the achievable web camera of applying unit 210
By function, the security monitoring function for supporting wireless realtime graphic and video capture can be then realized；Rechargeable lithium battery 210 is made
For electric power storage and power supply unit.
On this basis, lithium battery charge management module and battery shape are additionally provided in the web camera main body 200
State detection module, for cooperating charging of the wireless charging receiving unit 110 to rechargeable lithium battery 220.
As seen from the figure, the wireless charging receiving unit 110 in this example mainly include controller 111, receiving coil 112,
Rectification module 113 and voltage regulator module 114.
This receiving coil 112 is used to receive the transmitting electric energy from wireless charging transmitting unit 120, the receiving coil
112 couple with transmitting coil in wireless charging transmitting unit 120, can incude and receive the transmission of wireless charging transmitting unit 120
Electromagnetic signal, and convert thereof into electric current.
For the receiving coil 112, since the web camera in this example is packaged type, it is desirable that small in size and light
Just, so preferred single receiving coil in this example.
Rectification module 113 in this wireless charging receiving unit 110, input terminal is connect with receiving coil 112, and is exported
End is attached with voltage regulator module 114.The rectification module 113 is used to change into receiving coil 112 electric current to be formed and carries out
Rectification, and the electric current after rectification is exported to voltage regulator module 114.
Voltage regulator module 114 in this wireless charging receiving unit 110, the electricity for being rectified to rectified module 113
Stream carries out transformation adjusting, complies with the charging requirement of lithium battery 220 in web camera main body 200, and after transformation is adjusted
Electric current export into web camera main body 200 lithium battery charge management module, by lithium battery charge management module to lithium electricity
It charges in pond 220.
The specific composition of rectification module 113 and voltage regulator module 114 in this example is formed, it can be according to actual needs
Using existing mature technology or any feasible program, will not be repeated here herein.
The controller 111 of this wireless charging receiving unit 110 passes through battery status inspection in web camera main body 200
It surveys module and connects lithium battery 220, and control connection receiving coil 112, to complete the entire operation of wireless charging receiving unit 110
Control.The controller 111 is achievable to be communicated between wireless charging transmitting unit 120, and real by battery status detection module
When monitoring network camera body 200 in the information such as load current, battery temperature and battery capacity, by forming corresponding nothing
Line charge electric control instruction, and it is sent to wireless charging transmitting unit 120.
The controller 111 is specifically formed by accordingly controlling chip with the control program of the control chip is integrated in.The control
Process control control chip processed can realize following function:
After receiving the binary message message PING that wireless charging transmitting unit 120 is issued with FSK modulation mode, with
The binary message message that FSK modulation mode transmission represents PONG is given to receiving end, while can be id information, charging ability information
Equal parameter informations equally issue opposite end with FSK modulation mode, to allow wireless charging transmitting unit 120 to enter charge mode；
FSK modulation mode employed in this example, which not only encodes, to be easy, but also has good noise immunity and anti-attenuation ability, very suitable
Close the transmission of low data in the progress of this example；
Battery current electric quantity in web camera main body 200 is detected by battery status detection module, determines that battery is current
Whether voltage value is lower than battery low-voltage threshold values, if be lower than, forms the command information of " pre- trickle charge ", and with FSK modulation side
Formula notifies wireless charging transmitting unit 120；If be not less than, further check whether battery voltage value has reached preset electricity
The value of pressure；For " pre- trickle charge " here, as an example, transmitting terminal is controlled defeated by PWM duty cycle under " pre- trickle charge " state
Power is 3W out；
When voltage value is less than preset voltage, then the command information of " fast charge " is formed, and wireless with FSK modulation mode notice
Charge transmitting unit 120；Otherwise, the command information of " rear trickle charge " is formed, and single with FSK modulation mode notice wireless charging transmitting
Member 120；As an example, the output power of transmitting terminal is 10W under " fast charge " state, and transmitting terminal passes through under " completely filling afterwards " state
It is 3W that PWM duty cycle, which controls output power,；
After entering " fast punching " state, by battery status detection module real-time monitoring battery temperature state, when temperature is super
Overheat threshold value has been crossed, then has formed " trickle charge " command information, and wireless charging transmitting unit 120 is notified by FSK modulation mode
It charges into trickle charge state, and starts timer and persistently detect state of temperature, when temperature drops to safety door limit value or less,
Then form the command information of " fast charge ", and by FSK modulation mode notify wireless charging transmitting unit 120 restore fast charge state into
Row charging.
Chip is controlled under the driving of control program, is not born if also being detected and being detected by battery status detection module
Electric current is carried, then forms the command information of " stopping charging ", and FSK modulation mode notifies wireless charging transmitting unit 120.
Wireless charging transmitting unit 120 mainly includes controller 121, detection unit in composed structure in this example
122, AC/DC conversion modules 123, driver 124 and transmitting coil 125.
Wherein, AC/DC conversion module 123 is used for external power supply, such as 220V forceful electric power, and the alternating current of 220V can be switched to 9V
Direct current, and by the 9V direct current electricity output after conversion to driver 124, and 124 drive control transmitting coil 125 of driver with
Control transmitting electric energy, realizes the 9V direct current received being converted into electromagnetic wave signal, and externally export.
The working frequency of this driver 124 is adjusted by controller 121 according to the instruction that wireless charging receiving unit 110 is sent
Whole control, preferred working frequency are 110~205Khz, transimission power 10W, maximum efficiency 80%.
For transmitting coil 125, it is preferred to use three-winding intersect stack manner so that can wireless charging electricity range covering it is whole
A wireless charging emits table top.
Controller 121 and the cooperation of detection unit 122 in this wireless charging transmitting unit 120 constitute the control of electric energy emission mode
Molding block completes the control to 110 charge mode of wireless charging receiving unit.The wherein control of controller 121 connection driver
124, to control the working frequency of driver 124, and detection unit 122 is separately connected driver 124 and controller 121, detection
Unit 122 is sent to controller 121 for detecting the voltage value and current value passed through on transmitting terminal transmitting coil 125；Control
Device 121 according on transmitting coil 125 by voltage value and current value control the working frequency of driver 124, then by driving
Device 124 controls transmitting coil 125 and works.
The controller 121 preferably using 8 MCU construct based on 51 kernels, it is internal include communication interface, timer,
Input capture, 12 be ADC and WDT function, by built-in control program realize over-current detection, PWM control output, data acquire and
Wireless charging protocol, built-in FSK modulation function.
Furthermore following function can be achieved under the driving of control program in the controller 121:
Loading condition is perceived to be confirmed whether to need to issue binary message message PING with FSK modulation mode；Transmitting is single
Controller 122 in member 120 has detected whether load by the variation of sensory current value, once connecing in receiving unit 110
When take-up circle 112 is close to transmitting coil 125, the two is coupled, and the magnetic field of transmitting coil 125 will change, therewith
It will also be changed by the electric current of transmitting coil 125, controller 122 can perceive loaded presence, this when
Receiving unit 110 is exactly the load that transmitting unit 120 detects；
Information needed is not received in timer T1 after having sent PING information, then it is assumed that this load is non-chargeable negative
It carries, then electric energy must not be sent by controlling driver；The PONG information of the return of wireless charging receiving unit 110 is received in timer T1
And it after the parameter informations such as id information, charging ability information, then controls driver and enters charge mode；
After the command information for receiving " pre- trickle charge ", then the working condition that driver enters " pre- trickle charge " is controlled；
After the command information for receiving " fast charge ", then the working condition that driver enters " fast charge " is controlled；
After the command information for receiving " rear trickle charge ", then the working condition that driver enters " rear trickle charge " is controlled；
After the command information for receiving " stopping charging ", then controls driver and stop charging.
In addition, being then capable of forming the web camera with wireless charging function based on above-mentioned wireless charging scheme, lead to
It crosses and is charged in a manner of wireless charging to internal electric energy storage device, guarantee its power supply capacity, web camera is allowed to leave electric wire completely
Constraint.
On the basis of, in the matching used operation web camera management program in an intelligent terminal of web camera
Wireless charging management function is added, wireless charging state and current electric power storage state can be passed through built-in channel radio by web camera
Believe that module real-time synchronization in web camera management program, enables a user to real time monitoring network camera shooting into intelligent terminal
The wireless charging and accumulator status of machine, and wireless charging state can be controlled, such as control starting or the pass of wireless charging
It closes, and the mode of control wireless charging, such as fast charge, trickle charge.
As an example, when controlling wireless charging state, user passes through the web camera pipe in intelligent terminal
It manages Program Generating control instruction (such as starting, closing, fast charge, trickle charge), which passes through built-in radio communication mold
Block reaches web camera ontology based on wireless network.The control instruction can be by IPC platform and application in web camera ontology
Unit 210 receives, and the controller 111 being forwarded in wireless charging receiving unit 110, and controller 111 refers to receiving control
After order, corresponding command information is formed, and wireless charging transmitting unit 120 is notified with FSK modulation mode, to control FSK modulation
Mode notifies wireless charging transmitting unit 120 to enter corresponding working condition.
As an alternative, which can also be by obtaining in wireless charging receiving unit 110 in web camera ontology
Controller 111 directly receive, after receiving control instruction, form corresponding command information, and logical with FSK modulation mode
Know wireless charging transmitting unit 120, enters corresponding work to control FSK modulation mode notice wireless charging transmitting unit 120
State.
For above-mentioned web camera wireless charging scheme, its operation for carrying out wireless charging once illustrated below
Process.
In the present solution, wireless charging receiving unit 110 and wireless charging transmitting unit 120 cooperate, complete net is formed
Network video camera wireless charging device 100 realizes efficient wireless charging function by load detecting and voltage and its temperature detection.
Referring to fig. 2, wireless charging receiving unit 110 (hereinafter referred to as receiving end) and wireless charging transmitting unit 120 are (following
Abbreviation transmitting terminal) when cooperating, transmitting terminal is in non-charged state, then by meeting sensing network camera body 200
Loading condition is confirmed whether to need to transmit PING information by way of emitting electric energy, to determine the need for carrying out wireless charging
Electricity.Here two groups of binary arrays formed with 0 and 1 in PING information refers to, and electric energy transmission mode here refer to it is logical
It crosses transmitting coil and receiving coil carries out the interactive mode of electromagnetic wave.
If transmitting terminal starts timer after having sent PING information, if not receiving required letter in timer T1
Breath, then it is assumed that this load is non-chargeable load, must not send electric energy.
If receiving end receive transmitting terminal issue PING energy information after, with FSK modulation mode send PONG information to
To receiving end, while the parameter informations such as id information, charging ability information equally can be issued transmitting terminal with FSK modulation mode, sent out
End is penetrated after receiving these information, then enters charge mode.
Transmitting terminal, then by the voltage and current state of control transmitting terminal, carries out corresponding after entering charge mode
Charge mode.
Meanwhile after wireless charging unit receiving end completes the charging equipment interactive information with transmitting terminal, then real-time detection
Whether the cell voltage in current network video camera is lower than battery low-voltage threshold values:
" pre- trickle charge " instruction is sent by FSK modulation mode if "Yes", notice transmitting terminal enters " pre- trickle charge " state
It charges；Transmitting terminal, then by the voltage and current state of control transmitting terminal, enters after receiving " pre- trickle charge " instruction
" pre- trickle charge " state charges；
If "No", check whether the cell voltage in web camera has reached the value of preset voltage:
Voltage then sends " fast charge " instruction by FSK modulation mode if it is less than preset voltage, and notice transmitting terminal enters
" fast charge " state charges；Transmitting terminal then passes through the voltage and current shape of control transmitting terminal after receiving " fast charge " instruction
State enters " fast charge " state and charges；
If voltage be not less than preset voltage, by FSK modulation mode send " rear trickle charge " instruction, notify transmitting terminal into
Enter " rear trickle charge " state to charge；Transmitting terminal receive " rear trickle charge " instruction after, then by control transmitting terminal voltage and
Current status enters " rear trickle charge " state and charges.
If sending " charge closing " finally, receiving end detects no load current by FSK modulation mode and referring to
It enables, notice transmitting terminal stops charging；Transmitting terminal receive " charge closing " instruction after, then by control transmitting terminal voltage and
Current status, into non-charged state.
In order to further ensure the reliability of entire charging process, avoid forming damage to the state performance of battery,
This example can adjust in real time wireless charging mode according to the state of temperature of battery after wireless charging enters " fast punching " state.
Referring to Fig. 3 which shows a kind of instantiation procedure based on temperature adjustment charge mode that this example provides.
As seen from the figure, this example is after wireless charging mode of the transmitting terminal to receiving end enters " fast punching " state, receiving end
Detect real-time monitoring battery temperature state；
When battery temperature has been more than overheat threshold value, then passes through FSK modulation mode and send " trickle charge " instruction, notify transmitting terminal
It charges into " trickle charge " state, and starts 5 minutes timers and persistently detect state of temperature；And transmitting terminal is receiving " slowly
Fill " instruction after, then by control transmitting terminal voltage and current state, enter " trickle charge " state and charge；
In the runing time of timer, when battery temperature drops to safety door limit value or less, sent out by FSK modulation mode
" fast charge " is sent to instruct, notice transmitting terminal charges into " fast charge " state；Transmitting terminal then leads to after receiving " fast charge " instruction
The voltage and current state of control transmitting terminal is crossed, restores to " fast charge " state to charge.
In addition, as needed can be by the intelligence of the synchronizing informations such as electric power storage in wireless charging state and web camera to user
In energy terminal, so that user carries out the charging and electricity consumption of web camera to implement understanding and management.
Referring to fig. 4 which shows a kind of web camera that this example provides work on power after battery detecting process.
As seen from the figure, after web camera works on power, web camera main body can be wireless charging state and current
Module synchronization is into intelligent terminal by wireless communication for electric power storage state, the starting alarm immediately if detecting that battery capacity is too low
Mode, charge alert indicator light are lighted, and immediately push warning information give intelligent terminal prompt user, and after wireless charging and
When cleared alarm state.
The constraint that the non-contacting wireless charging scheme that this example provides allows web camera to leave supply lines, so that user
Web camera can be placed in any position with any angle, accomplish a kind of mobile monitoring function of any time, greatly
The mobility and scalability for increasing product greatly, improve the experience of user；It simultaneously can be according to network shooting self-contained battery
Electricity and charge characteristic carry out the control of charged state and charging rate, it is ensured that guarantee while the service life of lithium battery wireless
The maximum service efficiency filled.
It is last it is noted that the wireless charging device scheme that this example provides be applied equally to it is all with electric power storage energy
The charge function of the smart machine for having mobile demand of power, allows these smart machines that can accomplish real mobility and convenience
Property.
In addition, this wireless charging device scheme is also applied for difficult wiring or winding displacement easily along bad application scenarios, with wireless
The mode of charging avoids the safety of physical connection bring and integrality demand.
The basic principles, main features and advantages of the present invention have been shown and described above.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and the above embodiments and description only describe this
The principle of invention, without departing from the spirit and scope of the present invention, various changes and improvements may be made to the invention, these changes
Change and improvement all fall within the protetion scope of the claimed invention.The claimed scope of the invention by appended claims and its
Equivalent thereof.
Claims (10)
1. the wireless charging method of web camera characterized by comprising
Wireless charging transmitting terminal carries out basic information with wireless charging receiving terminal and interacts, and wireless charging transmitting terminal enters charging work
Mode；
Wireless charging receiving terminal detects web camera current electric quantity；
When current voltage value is lower than battery low-voltage threshold values, it is " pre- that wireless charging receiving terminal notifies that wireless charging transmitting terminal enters
Trickle charge " state charges；It is 3W that transmitting terminal, which controls output power by PWM duty cycle, under " pre- trickle charge " state；
When current voltage value is not less than battery low-voltage threshold values, further detect whether voltage value has reached preset voltage
Value；
When voltage value is less than preset voltage, wireless charging receiving terminal notifies wireless charging transmitting terminal to enter " fast charge " state and carry out
Otherwise charging notifies wireless charging transmitting terminal to charge into " rear trickle charge " state.
2. the wireless charging method of web camera according to claim 1, which is characterized in that in wireless charging receiving terminal
It detects when there is no load current, then wireless charging transmitting terminal is notified to stop charging.
3. the wireless charging method of web camera according to claim 1, which is characterized in that the wireless charging transmitting
Hold wireless charging receiving terminal between basic information interactive process include:
Wireless charging transmitting terminal is confirmed whether to need to transmit PING information by perception loading condition；
Wireless charging transmitting terminal does not receive preset feedback information after sending PING information in the given time, then judges that this is negative
Carrying is non-chargeable load, must not send electric energy；
Wireless charging transmitting terminal, which is sent, in the given time receives wireless charging receiving terminal after PING information according to receiving
After the PONG information that PING information is fed back, then enter charge mode.
4. the wireless charging method of web camera according to claim 1, which is characterized in that in wireless charging transmitting terminal
After entering " fast charge " state between wireless charging receiving terminal, the temperature value of wireless charging receiving terminal then real-time monitoring battery, when
Temperature is more than overheat threshold value, then notifies wireless charging transmitting terminal to charge into " trickle charge state ", and start timer and hold
Continuous detection state of temperature, when temperature is lower than safety door limit value, then notify wireless charging transmitting terminal restore to " fast charge state " into
Row charging.
5. the wireless charging method of web camera according to claim 1, which is characterized in that the wireless charging method
In further include the intelligent terminal that wireless charging state and/or current network camera terminal electric power storage status information are synchronized to user
In, and detecting that web camera terminal battery electricity quantity is too low, start alert mode immediately, pushes warning information to user
Intelligent terminal prompt user, and the timely cleared alarm state after wireless charging.
6. the wireless charging device of web camera characterized by comprising
The inside of web camera is arranged in wireless charging receiving terminal, the wireless charging receiving terminal, and controls connection network and take the photograph
Battery in camera, the wireless charging receiving terminal can receive the electromagnetic signal that wireless charging transmitting terminal is sent and formed accordingly
Electric current is charged to battery and is monitored the state of battery；
Wireless charging transmitting terminal, the external alternating current of wireless charging transmitting terminal, and with wireless charging receiving terminal wireless coupling, receive
The information and electric current formation electromagnetic signal is sent to wireless charging receiving terminal that wireless charging receiving terminal is sent；
It is configured as between the wireless charging receiving terminal and wireless charging transmitting terminal according to described in any one of claim 1-5
Wireless charging method carries out wireless charging to web camera.
7. the wireless charging device of web camera according to claim 6, which is characterized in that the wireless charging transmitting
End mainly includes emission mode control unit, AC/DC conversion module, driver and transmitting coil, the AC/DC conversion module
External alternating current, and connect with driver, the driver is drivingly connected transmitting coil, the emission mode control unit control
System connection driver；The command information adjust drivers that the emission mode control unit is provided according to wireless charging receiving terminal
Working frequency emits electric energy to control transmitting coil.
8. the wireless charging device of web camera according to claim 7, which is characterized in that the emission mode control
Unit is connected and composed by controller and detection unit module, the controller control connection driver, the detection unit module
Connect driver and controller.
9. the wireless charging device of web camera according to claim 7, which is characterized in that the transmitting coil is three
Coil intersects stack manner.
10. the wireless charging device of web camera according to claim 6, which is characterized in that the wireless charging connects
Receiving end includes receiving coil, rectification module, voltage regulator module and controller, and the receiving coil is connect with rectification module,
The rectification module is connect with voltage regulator module, and the voltage regulator module is connected to the battery mould in web camera
Block；Battery module and receiving coil in the controller control connection web camera.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811057823.2A CN109066933B (en) | 2018-09-11 | 2018-09-11 | Wireless charging method and device for network camera |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811057823.2A CN109066933B (en) | 2018-09-11 | 2018-09-11 | Wireless charging method and device for network camera |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109066933A true CN109066933A (en) | 2018-12-21 |
| CN109066933B CN109066933B (en) | 2021-09-21 |
Family
ID=64760223
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811057823.2A Active CN109066933B (en) | 2018-09-11 | 2018-09-11 | Wireless charging method and device for network camera |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109066933B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109377731A (en) * | 2018-12-29 | 2019-02-22 | 云集将来传媒（上海）有限公司 | A kind of time-lapse shooting automatic alarm system |
| CN110649688A (en) * | 2019-10-21 | 2020-01-03 | 广西电网有限责任公司电力科学研究院 | Wireless charging control system and method based on battery temperature detection |
| CN112600782A (en) * | 2020-11-23 | 2021-04-02 | 厦门新页微电子技术有限公司 | Wireless charging system, communication method thereof and storage medium |
| CN113078693A (en) * | 2020-01-03 | 2021-07-06 | 耀鸿(嘉兴)电子科技有限公司 | Vehicle wireless charging system |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050162508A1 (en) * | 2003-12-11 | 2005-07-28 | Logitech Europe S.A. | Integrated camera stand with wireless audio conversion and battery charging |
| CN102280919A (en) * | 2008-02-20 | 2011-12-14 | 郑春吉 | Non-contact power recieving device and method and power transmission device and method |
| CN202949492U (en) * | 2012-11-16 | 2013-05-22 | 深圳市朗驰欣创科技有限公司 | Network camera |
| CN203589851U (en) * | 2013-10-22 | 2014-05-07 | 深圳市合元科技有限公司 | Wireless electric energy transmitting device |
| CN105098945A (en) * | 2015-08-05 | 2015-11-25 | 青岛海信移动通信技术股份有限公司 | Power adapter capable of direct charging |
| CN105490357A (en) * | 2014-09-19 | 2016-04-13 | 天津市中环通讯技术有限公司 | Intelligent wireless charger receiver |
| CN105552988A (en) * | 2015-12-09 | 2016-05-04 | 歌尔声学股份有限公司 | Wearable electronic equipment charging control method and device, and intelligent watch |
| CN106059108A (en) * | 2016-07-21 | 2016-10-26 | 宁波力芯科信息科技有限公司 | Adaptive wireless charging system with high charging efficiency |
| CN206042149U (en) * | 2016-08-24 | 2017-03-22 | 成都中英锐达科技有限公司 | Net warning camera absolutely |
| CN106941584A (en) * | 2017-05-04 | 2017-07-11 | 武汉随戈科技服务有限公司 | A kind of teleworking management is used in line IP Camera |
| CN206865234U (en) * | 2017-07-08 | 2018-01-09 | 厦门新页科技有限公司 | Disconnected system is filled during a kind of solution mobile phone wireless charging |
| CN108512316A (en) * | 2018-02-08 | 2018-09-07 | 杭州如道科技有限公司 | A kind of wireless charging device and a kind of split type high-definition network camera |
-
2018
- 2018-09-11 CN CN201811057823.2A patent/CN109066933B/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050162508A1 (en) * | 2003-12-11 | 2005-07-28 | Logitech Europe S.A. | Integrated camera stand with wireless audio conversion and battery charging |
| CN102280919A (en) * | 2008-02-20 | 2011-12-14 | 郑春吉 | Non-contact power recieving device and method and power transmission device and method |
| CN202949492U (en) * | 2012-11-16 | 2013-05-22 | 深圳市朗驰欣创科技有限公司 | Network camera |
| CN203589851U (en) * | 2013-10-22 | 2014-05-07 | 深圳市合元科技有限公司 | Wireless electric energy transmitting device |
| CN105490357A (en) * | 2014-09-19 | 2016-04-13 | 天津市中环通讯技术有限公司 | Intelligent wireless charger receiver |
| CN105098945A (en) * | 2015-08-05 | 2015-11-25 | 青岛海信移动通信技术股份有限公司 | Power adapter capable of direct charging |
| CN105552988A (en) * | 2015-12-09 | 2016-05-04 | 歌尔声学股份有限公司 | Wearable electronic equipment charging control method and device, and intelligent watch |
| CN106059108A (en) * | 2016-07-21 | 2016-10-26 | 宁波力芯科信息科技有限公司 | Adaptive wireless charging system with high charging efficiency |
| CN206042149U (en) * | 2016-08-24 | 2017-03-22 | 成都中英锐达科技有限公司 | Net warning camera absolutely |
| CN106941584A (en) * | 2017-05-04 | 2017-07-11 | 武汉随戈科技服务有限公司 | A kind of teleworking management is used in line IP Camera |
| CN206865234U (en) * | 2017-07-08 | 2018-01-09 | 厦门新页科技有限公司 | Disconnected system is filled during a kind of solution mobile phone wireless charging |
| CN108512316A (en) * | 2018-02-08 | 2018-09-07 | 杭州如道科技有限公司 | A kind of wireless charging device and a kind of split type high-definition network camera |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109377731A (en) * | 2018-12-29 | 2019-02-22 | 云集将来传媒（上海）有限公司 | A kind of time-lapse shooting automatic alarm system |
| CN110649688A (en) * | 2019-10-21 | 2020-01-03 | 广西电网有限责任公司电力科学研究院 | Wireless charging control system and method based on battery temperature detection |
| CN110649688B (en) * | 2019-10-21 | 2023-03-14 | 广西电网有限责任公司电力科学研究院 | Wireless charging control system and method based on battery temperature detection |
| CN113078693A (en) * | 2020-01-03 | 2021-07-06 | 耀鸿(嘉兴)电子科技有限公司 | Vehicle wireless charging system |
| CN112600782A (en) * | 2020-11-23 | 2021-04-02 | 厦门新页微电子技术有限公司 | Wireless charging system, communication method thereof and storage medium |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109066933B (en) | 2021-09-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109066933A (en) | A kind of wireless charging method and device of web camera | |
| CN102355035B (en) | Wireless charging transmitting device, wireless charging system and wireless charging control method | |
| CN102611215B (en) | Radio energy emitter and wireless charging system | |
| US20130181665A1 (en) | Wireless power transmitter, wireless power receiver, and control methods thereof | |
| CN106849387A (en) | A kind of wireless charging emitter and its intelligent charge input and output intent | |
| CN108418316A (en) | A kind of wireless charging autocontrol method and system | |
| Huang et al. | Wireless power and bidirectional data transfer scheme for battery charger | |
| CN103107584A (en) | Device with wireless mobile charging function and wireless charging method thereof | |
| CN109742833A (en) | Transmitting terminal, receiving end, wireless charging system and wireless charging method | |
| CN209104824U (en) | A kind of portable non-plug-in type charging equipment | |
| CN206673710U (en) | A kind of wireless charging emitter | |
| CN206336147U (en) | Charging device | |
| CN106130181A (en) | A kind of domestic intelligent power supply | |
| CN106385112B (en) | The electronic lock of wireless power | |
| CN105826623B (en) | A kind of charging method, charger and it is electrically charged device | |
| CN104218625A (en) | Wireless charging method and device of hand-held mobile terminal | |
| CN105262242A (en) | Wireless charging device based on two-way energy flow | |
| JP6081207B2 (en) | Contactless power supply system, power receiving device, power supply stand, contactless power supply method | |
| KR101809295B1 (en) | Wireless power transmitter and wireless power receiver and method for controlling each thereof | |
| CN106712215A (en) | Intelligent wireless charging circuit, intelligent wireless charging device and wireless charging method | |
| CN208874336U (en) | A kind of wireless charging system | |
| CN208874368U (en) | A kind of wireless charging system and charge parameter regulating device | |
| CN103915876B (en) | A kind of wireless charging method and device | |
| CN207022265U (en) | Induction type security light | |
| CN206135502U (en) | Wireless charging system of robot sweeps floor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |