CN116667484B - Wireless charging compatible system and method based on master-slave control logic - Google Patents
Wireless charging compatible system and method based on master-slave control logic Download PDFInfo
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- CN116667484B CN116667484B CN202310622945.6A CN202310622945A CN116667484B CN 116667484 B CN116667484 B CN 116667484B CN 202310622945 A CN202310622945 A CN 202310622945A CN 116667484 B CN116667484 B CN 116667484B
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- 238000000034 method Methods 0.000 title claims abstract description 40
- 238000004891 communication Methods 0.000 claims description 41
- 238000005070 sampling Methods 0.000 claims description 17
- 238000001514 detection method Methods 0.000 claims description 10
- 230000004044 response Effects 0.000 claims description 10
- 230000002618 waking effect Effects 0.000 claims 1
- 244000062793 Sorghum vulgare Species 0.000 description 49
- 235000019713 millet Nutrition 0.000 description 49
- DWDGSKGGUZPXMQ-UHFFFAOYSA-N OPPO Chemical compound OPPO DWDGSKGGUZPXMQ-UHFFFAOYSA-N 0.000 description 48
- 230000008569 process Effects 0.000 description 13
- 230000008901 benefit Effects 0.000 description 9
- 239000002184 metal Substances 0.000 description 8
- 238000010586 diagram Methods 0.000 description 6
- 230000002159 abnormal effect Effects 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 230000003993 interaction Effects 0.000 description 3
- 238000000859 sublimation Methods 0.000 description 3
- 230000008022 sublimation Effects 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 1
- 230000003044 adaptive effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000005672 electromagnetic field Effects 0.000 description 1
- 230000005674 electromagnetic induction Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
Classifications
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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
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/00032—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by data exchange
- H02J7/00034—Charger exchanging data with an electronic device, i.e. telephone, whose internal battery is under charge
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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
- H02J50/10—Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling
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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
- H02J50/60—Circuit arrangements or systems for wireless supply or distribution of electric power responsive to the presence of foreign objects, e.g. detection of living beings
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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
- H02J50/80—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
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- Power Engineering (AREA)
- Computer Networks & Wireless Communication (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The application discloses a wireless charging compatible system and a method thereof based on master-slave control logic. The wireless charging compatible system based on the master-slave control logic comprises: the wireless charging control device comprises an energy coil power transmitting unit, a power unit corresponding to the energy coil power transmitting unit, a first wireless charging control chip electrically connected with the power unit, and a second wireless charging control chip electrically connected with the power unit; the first wireless charging control chip is a master control chip, and the second wireless charging control chip is a slave control chip, wherein when the first wireless charging control chip is in a working state, the second wireless charging control chip is in a waiting awakening state. The master-slave control logic-based wireless charging compatible system can prevent the multi-control unit from robbing the charging control right by utilizing the master-slave relation design of the control chip, and improves the robustness of a wireless charging compatible scheme.
Description
Technical Field
The present disclosure relates to the field of wireless charging technologies, and more particularly, to a wireless charging compatible system based on master-slave control logic and a method thereof.
Background
The wireless charging means that the charging equipment realizes power transmission to the electric equipment under the condition of no electric connection wire connection between the charging equipment and the electric equipment. For example, a wireless charger for a mobile phone may charge the mobile phone without a connection to an electrical connection line between the mobile phone. Compared with the traditional wired charging, the wireless charging has the characteristics of being convenient to operate, simplifying charging equipment, reducing the mess of the charging equipment, avoiding abrasion of a charging wiring port, being high in waterproofness and the like, and becomes a charging mode which is popular with consumers at present.
It is worth mentioning that the wireless quick charging field lacks unified standard, and the charging protocols supported by the wireless charging equipment of each brand are different, so that the types of the wireless charging equipment adapted by the electric equipment of different models are also different. Taking a mobile phone wireless charging technology as an example, the wireless charger of the apple mobile phone is different from the wireless charger of the millet mobile phone in the fast charging protocols supported by the wireless charger of the mobile phone.
In order to improve the compatibility of wireless charging equipment, the existing manufacturers propose a wireless charging compatibility scheme, so that mobile phones of different brands can be charged through the same wireless charger. Specifically, on hardware, a plurality of wireless charging control units share the same charging panel, the same energy coil power transmitting unit and the same power unit, and on software, the plurality of wireless charging control units work cooperatively to charge different types of mobile phones, and the corresponding different control units control charging.
However, existing wireless charging compatibility schemes have some problems that affect the wireless charging performance of the wireless charging device. For example, in the prior art, a problem of robbing a charging control right occurs in a plurality of wireless charging control units, and in the process of robbing the charging control right, conditions such as abnormal control right, burnt power units and the like occur.
Thus, a new wireless charging compatibility scheme is needed.
Disclosure of Invention
An advantage of the present application is that a wireless charging compatible system based on master-slave control logic is provided, where the wireless charging compatible system based on master-slave control logic provides a wireless charging compatible scheme, which can improve wireless charging compatibility, and meanwhile, avoid a plurality of control units from robbing charging control rights, and improve robustness of the wireless charging compatible scheme.
An advantage of the present application is that it provides a wireless charging compatible system based on a master-slave control logic, where the wireless charging compatible system based on the master-slave control logic can optimize the wireless charging performance of a control chip with poor wireless charging performance by using the advantage of the control chip with good wireless charging performance, so as to improve the overall wireless charging performance of the wireless charging compatible system based on the master-slave control logic.
According to one aspect of the present application, there is provided a wireless charging compatible system based on master-slave control logic, comprising:
an energy coil power transmitting unit;
a power unit corresponding to the energy coil power transmitting unit;
the first wireless charging control chip is electrically connected with the power unit; and
the second wireless charging control chip is electrically connected with the power unit;
the first wireless charging control chip is a master control chip, and the second wireless charging control chip is a slave control chip, wherein when the first wireless charging control chip is in a working state, the second wireless charging control chip is in a waiting awakening state.
In the master-slave control logic-based wireless charging compatible system according to the present application, the first wireless charging control chip controls the second wireless charging control chip to be in the waiting wake-up state, and after confirming that the second wireless charging control chip is in the waiting wake-up state, the first wireless charging control chip obtains the control right of the power unit.
In the master-slave control logic based wireless charging compatible system according to the present application, after the first wireless charging control chip identifies a tag that needs to be executed by the second wireless charging control chip, the first wireless charging control chip releases the control right to the power unit, and after the first wireless charging control chip is switched to an auxiliary working state, the second wireless charging control chip obtains the control right to the power unit.
In the master-slave control logic-based wireless charging compatible system according to the application, after the first wireless charging control chip releases the control right on the power unit and the first wireless charging control chip is switched to the auxiliary working state, the first wireless charging control chip wakes up the second control chip, so that the second wireless charging control chip obtains the control right on the power unit.
In the master-slave control logic based wireless charging compatible system according to the present application, the first wireless charging control chip includes a first wireless charging control unit and a first in-band communication demodulation and sampling unit electrically connected to the first wireless charging control unit, and the second wireless charging control chip includes a second wireless charging control unit and a second in-band communication demodulation and sampling unit electrically connected to the second wireless charging control unit.
In the master-slave control logic based wireless charging compatible system according to the present application, when the first wireless charging control chip is in the auxiliary working state, the first wireless charging control chip transmits a charging state signal to the second wireless charging control chip.
In the wireless charging compatible system based on the master-slave control logic, the charging state signal comprises an in-band communication demodulation signal, a circuit quality factor Q signal and a metallic foreign object detection FOD signal.
In the master-slave control logic based wireless charging compatible system according to the present application, when the first wireless charging control chip is in the auxiliary working state, the first wireless charging control chip monitors the working state of the second wireless charging control chip.
In the master-slave control logic-based wireless charging compatible system according to the present application, when the first wireless charging control chip is in the auxiliary operation state, the first wireless charging control chip executes a timeout protection procedure in response to detecting that the second wireless charging control chip is in an error state for more than a predetermined time and does not handover control rights of the power unit.
In the master-slave control logic-based wireless charging compatible system according to the present application, the first wireless charging control chip obtains the charging state signal through the first in-band communication demodulation and sampling unit and transmits the charging state signal to the second wireless charging control chip.
According to another aspect of the present application, there is provided a wireless charging compatible method based on master-slave control logic, comprising:
and responding to the first wireless charging control chip identifying a label which needs to be executed by the first wireless charging control chip, controlling the second wireless charging control chip to be in the waiting awakening state by the first wireless charging control chip, and obtaining the control right of the power unit by the first wireless charging control chip after confirming that the second wireless charging control chip is in the waiting awakening state.
In the master-slave control logic-based wireless charging compatible method according to the present application, the master-slave control logic-based wireless charging compatible method further includes: and responding to the first wireless charging control chip identifying the label which needs to be executed by the second wireless charging control chip, wherein the second wireless charging control chip obtains the control right of the power unit after the first wireless charging control chip releases the control right of the power unit and the first wireless charging control chip is switched to an auxiliary working state.
In the master-slave control logic-based wireless charging compatible method according to the application, after the first wireless charging control chip releases the control right on the power unit and the first wireless charging control chip is switched to an auxiliary working state, the first wireless charging control chip wakes up the second control chip, so that the second wireless charging control chip obtains the control right on the power unit.
In the master-slave control logic-based wireless charging compatible method according to the present application, the master-slave control logic-based wireless charging compatible method further includes: the first wireless charging control chip transmits a charging state signal to the second wireless charging control chip.
In the master-slave control logic-based wireless charging compatible method according to the present application, the master-slave control logic-based wireless charging compatible method further includes: in response to detecting that the second wireless charging control chip is in an error state for more than a predetermined time and not handing over control of the power unit, the first wireless charging control chip performs a timeout protection procedure.
Further objects and advantages of the present application will become fully apparent from the following description and the accompanying drawings.
These and other objects, features, and advantages of the present application will become more fully apparent from the following detailed description, the accompanying drawings, and the appended claims.
Drawings
The foregoing and other objects, features and advantages of the present application will become more apparent from the following more particular description of embodiments of the present application, as illustrated in the accompanying drawings. The accompanying drawings are included to provide a further understanding of embodiments of the application and are incorporated in and constitute a part of this specification, illustrate the application and not constitute a limitation to the application. In the drawings, like reference numerals generally refer to like parts or steps.
Fig. 1 illustrates an existing wireless charging compatibility scheme.
Fig. 2 illustrates a prior art wireless charging flow diagram.
Fig. 3 illustrates a block diagram schematic of a master-slave control logic based wireless charging compatible system in accordance with an embodiment of the present application.
Fig. 4 illustrates a schematic diagram of communication modes of a first wireless charging control chip and a second wireless charging control chip of a wireless charging compatible system based on master-slave control logic according to an embodiment of the present application.
Fig. 5 illustrates another communication mode schematic diagram of a first wireless charging control chip and a second wireless charging control chip of a wireless charging compatible system based on master-slave control logic according to an embodiment of the present application.
Fig. 6 illustrates a block diagram schematic of one example of a master-slave control logic based wireless charging compatible system in accordance with an embodiment of the present application.
Fig. 7 illustrates a flow chart of an operational mode of a master-slave control logic based wireless charging compatible system in accordance with an embodiment of the present application.
Fig. 8 illustrates a flow chart of a master-slave control logic based wireless charging compatibility method in accordance with an embodiment of the present application.
Detailed Description
Hereinafter, example embodiments according to the present application will be described in detail with reference to the accompanying drawings. It should be apparent that the described embodiments are only some of the embodiments of the present application and not all of the embodiments of the present application, and it should be understood that the present application is not limited by the example embodiments described herein.
Summary of the application
As described above, in order to improve the compatibility of the wireless charging device, a wireless charging compatibility scheme has been proposed, so that mobile phones of different brands can be charged by the same wireless charger. Specifically, on hardware, a plurality of wireless charging control units share the same charging panel, the same energy coil power transmitting unit and the same power unit, and on software, the plurality of wireless charging control units work cooperatively to charge different types of mobile phones, and the corresponding different control units control charging.
However, existing wireless charging compatibility schemes have some problems that affect the wireless charging performance of the wireless charging device. For example, in the prior art, a problem of robbing a charging control right occurs in a plurality of wireless charging control units, and in the process of robbing the charging control right, conditions such as abnormal control right, burnt power units and the like occur.
The applicant of the present application has found that, in the prior art, a main reason why the plurality of wireless charging control units may rob the charging control right is that the control rights of the plurality of wireless charging control units are equal, that is, the plurality of wireless charging control units are the same as the main control unit. Specifically, taking common wireless fast-charging control units such as millet, OPPO, VIVO, apple and the like and wireless fast-charging control units such as Hua-Cheng and Hua-Yao and the like as examples, as shown in fig. 1 and 2, the common wireless fast-charging control units such as millet, OPPO, VIVO, apple and the like and the wireless fast-charging control units such as Hua-Cheng and Hua-Yao and the like are taken as main control units, after identifying the IDs of the jurisdictions, the ID jurisdiction notifies the non-jurisdiction of the control rights, and the jurisdiction starts to control the charging of the power units after receiving the non-jurisdiction control right transfer instruction. For example, if it is recognized that the electric device is an ID governed by a wireless quick-charge control means such as a bloom or a glowing, the wireless quick-charge control means such as a bloom or a glowing is an ID jurisdiction, the wireless quick-charge control means such as a millet, OPPO, VIVO, apple is a non-jurisdiction, the wireless quick-charge control means such as a bloom or a glowing notifies the wireless quick-charge control means such as a millet, OPPO, VIVO, apple of the control right, and after receiving a handover instruction from the wireless quick-charge control means such as a millet, OPPO, VIVO, apple, the power unit charging is started to be controlled.
In the charging process, unless the ID jurisdiction puts forward a handover jurisdiction through a state interaction signal, the common wireless quick charging control unit such as millet, OPPO, VIVO, apple and the like and the wireless quick charging control unit such as Hua Cheng and Rong and the like do not perform any interaction, and the redundancy is poor. In the charging process, when the ID jurisdiction has abnormal charging conditions, the common wireless quick charging control unit such as millet, OPPO, VIVO and apple and the wireless quick charging control unit such as Huacheng and glowing will rob control rights, so that the control rights are abnormal, and the power unit is burnt.
Based on this, the present application proposes to establish a master-slave relationship between a plurality of control units, defining a master control unit and a slave control unit. The host control unit has control right to the slave control unit, and the host control unit can determine the control unit for controlling charging according to the electric equipment, and can also determine the control unit for starting the protection mechanism when the charging failure occurs in the charging process, so that the situation of robbing control right is avoided.
When the master control unit is operating, the slave control unit is forced into a sleep wait awake state. When the host control unit recognizes that the ID to be executed by the slave control unit is needed, the host control unit actively removes the control right of the power unit to enter a monitoring auxiliary mode, and then wakes the slave control unit to take over the control right of the power unit to operate the power unit to execute charging. In the process that the slave control unit controls the power unit to charge, the master control unit monitors the working state of the slave control unit in an auxiliary mode, and monitors that the slave control unit enters an error state and overtime the master control unit forcedly enters overtime protection so as to ensure the reliability of a charged closed loop.
Accordingly, the present application proposes a wireless charging compatible system based on master-slave control logic, comprising: the wireless charging control device comprises an energy coil power transmitting unit, a power unit corresponding to the energy coil power transmitting unit, a first wireless charging control chip electrically connected with the power unit, and a second wireless charging control chip electrically connected with the power unit; the first wireless charging control chip is a master control chip, and the second wireless charging control chip is a slave control chip, wherein when the first wireless charging control chip is in a working state, the second wireless charging control chip is in a waiting awakening state.
Having described the basic principles of the present application, various non-limiting embodiments of the present application will now be described in detail with reference to the accompanying drawings.
Exemplary System
Fig. 3 illustrates a block diagram schematic of a master-slave control logic based wireless charging compatible system in accordance with an embodiment of the present application. As shown in fig. 3, the wireless charging compatible system 100 based on master-slave control logic according to the embodiment of the present application includes: an energy coil power transmitting unit 110, a power unit 120 corresponding to the energy coil power transmitting unit 110, a first wireless charging control chip 130 electrically connected to the power unit 120, and a second wireless charging control chip 140 electrically connected to the power unit 120.
In the embodiment of the present application, the energy coil power transmitting unit 110 is a transmitting port in the wireless charging technology. The energy coil power transmitting unit 110 generally includes one or more energy coils, and the energy coils of the energy coil power transmitting unit 110 generate an electromagnetic field using the principle of electromagnetic induction. In the wireless charging technology, the energy coil power transmitting unit 110 is typically provided in a wireless charger.
The power unit 120 generates a driving signal of corresponding energy intensity according to the power level required by the first wireless charging control chip 130 or the second wireless charging control chip 140, drives the energy coil power transmitting unit 110 to convert an electric signal into an electromagnetic signal, and provides the electromagnetic signal to the receiving device, and the receiving device converts the electromagnetic energy into electric energy through the coupling coil and stores the electric energy in the battery of the terminal device, thereby realizing wireless charging.
In this embodiment of the present application, the first wireless charging control chip 130 is a master control chip, i.e., a master control chip, and the second wireless charging control chip 140 is a slave control chip, i.e., a slave control chip. When the first wireless charging control chip 130 identifies a tag that needs to be executed by the first wireless charging control chip 130, the first wireless charging control chip 130 actively controls the second wireless charging control chip 140 to enter the waiting state, and after determining that the second wireless charging control chip 140 enters the waiting state, the first wireless charging control chip 130 obtains the control right of the power unit 120 to enter the working state, so that the second wireless charging control chip 140 can be prevented from robbing the control right of the first wireless charging control chip 130 in the subsequent charging process. When the first wireless charging control chip 130 identifies a tag that needs to be executed by the second wireless charging control chip 140, the first wireless charging control chip 130 firstly releases the control right to the power unit 120 and switches to an auxiliary working state, and then the first wireless charging control chip 130 wakes up the second wireless charging control chip 140, and the second wireless charging control chip 140 obtains the control right to the power unit 120. The tag requiring the first wireless charging control chip 130 to execute may be implemented as an ID number of the electric device adapted to the first wireless charging control chip 130, and the tag requiring the second wireless charging control chip 140 to execute may be implemented as an ID number of the electric device adapted to the second wireless charging control chip 140.
It is worth mentioning that the conventional multiple wireless charging control chips are all host control authorities when working under the respectively specified adaptive consumer ID, when the control chip under the host control authorities does not actively cross the control authorities, the system cannot execute any closed loop operation, and this unidirectional control operation mode requires that the control participants achieve perfect seamless matching during the cross connection, and has no control redundancy, and fine logic and electrical disturbance under the working conditions may cause interaction errors, so that the host preemption leads to the burning of the power control unit.
The type of the electric equipment is identified through the first wireless charging control chip 130 in a unified way, the state of each wireless charging control chip needing to enter is determined according to the identification condition, each wireless charging control chip is actively controlled to enter the corresponding state, and each wireless charging control chip does not autonomously select the state of each wireless charging control chip needing to enter; and when a fault occurs in the subsequent charging process, the first wireless charging control chip 130 also identifies the fault and processes the fault in response to the determination result. That is, the first wireless charging control chip 130 is the control chip with the highest control level in each first wireless charging control chip 130, and controls the states of other wireless charging control chips according to the system operation condition, so as to avoid the situation of competing for control rights among each wireless charging control chip.
The first wireless charging control chip 130 includes a first wireless charging control unit 131 and a first in-band communication demodulation and sampling unit 132 electrically connected to the first wireless charging control unit 131, and the second wireless charging control chip 140 includes a second wireless charging control unit 141 and a second in-band communication demodulation and sampling unit 142 electrically connected to the second wireless charging control unit 141.
The first wireless charging control unit 131 is a master control unit, i.e., a master control unit, and the second wireless charging control unit 141 is a slave control unit, i.e., a slave control unit. The host control unit has control right to the slave control unit, and the host control unit can determine the control unit for controlling charging according to the ID of the electric equipment. When the first wireless charging control unit 131 identifies a tag that needs to be executed by the second wireless charging control unit 141, the first wireless charging control unit 131 actively removes control rights to the second wireless charging control unit 141 and the first wireless charging control unit 131 is switched to an auxiliary operation state, and the second wireless charging control unit 141 obtains control rights of the power unit 120.
The first in-band communication demodulation and sampling unit 132 functions to demodulate the received in-band communication signal and sample the necessary electrical signal. The first in-band communication demodulation and sampling unit 132 includes a first demodulator for demodulating the in-band communication signal received by the first wireless charging control chip 130 to convert the signal into a digital communication signal, and a first sampler for sampling an electric signal necessary for the charging process.
The second in-band communication demodulation and sampling unit 142 functions to demodulate the received in-band communication signal and sample the necessary electrical signal. The second in-band communication demodulation and sampling unit 142 includes a second demodulator for demodulating the in-band communication signal received by the second wireless charging control chip 140 to convert the signal into a digital communication signal, and a second sampler for sampling an electric signal necessary for the charging process.
It should be noted that the wireless charging compatible system 100 based on the master-slave control logic may optimize the wireless charging performance of the control chip with poor wireless charging performance by using the advantage of the control chip with good wireless charging performance, so as to improve the overall wireless charging performance of the wireless charging compatible system 100 based on the master-slave control logic.
In the embodiment of the present application, the charging performance of the first wireless charging control chip 130 is better. The in-band communication demodulation signal, the circuit quality factor Q signal, the metal foreign object detection FOD and other charging state signals are important parameters affecting the charging performance, the error rate of the in-band communication demodulation signal of the first wireless charging control chip 130 is low, and the accuracy of the circuit quality factor Q signal and the metal foreign object detection FOD is high.
When the first wireless charging control chip 130 is in the auxiliary working state and the second wireless charging control chip 140 is in the working state, the first wireless charging control chip 130 writes the demodulated in-band communication demodulation signal, the circuit quality factor Q signal, the metal foreign object detection FOD and other charging state signals into a register agreed with the second wireless charging control chip 140 for the second wireless charging control chip 140 to call, thereby optimizing the wireless charging performance of the second wireless charging control chip 140 and greatly improving the user experience on the basis of improving the robustness of the wireless charging scheme. That is, when the first wireless charging control chip 130 is in the auxiliary operation state, the first wireless charging control chip 130 transmits a charging state signal to the second wireless charging control chip 140, wherein the charging state signal includes an in-band communication demodulation signal, a circuit quality factor Q signal, and a foreign metal detection FOD signal.
It should be noted that, the first wireless charging control chip 130 and the second wireless charging control chip 140 may transmit the charging status signal through an inter-chip communication manner, as shown in fig. 4. Specifically, the first wireless charging control chip 130 transmits the charging status signal to the second wireless charging control chip 140 through an inter-chip channel. The first wireless charging control chip 130 and the second wireless charging control chip 140 may also transmit the charge status signal in other manners. In some embodiments of the present application, the master-slave control logic-based wireless charging compatible system 100 further includes an encrypted communication chip 150 that is cryptographically connected to the first wireless charging control chip 130 and the second wireless charging control chip 140, as shown in fig. 5, wherein the first wireless charging control chip 130 transmits the charge status signal to the encrypted communication chip 150 in an encrypted manner, and the encrypted communication chip 150 retransmits the encrypted charge status signal to the second wireless charging control chip 140.
It should be further noted that, the first wireless charging control chip 130 and the second wireless charging control chip 140 can realize advantage sharing by transmitting in-band communication demodulation signals, circuit quality factor Q signals, metal foreign object detection FOD signals and other process parameters, and the secrecy of the first wireless charging control chip 130 and the second wireless charging control chip 140 can be maintained without transmission or sharing algorithm.
In addition, when the first wireless charging control chip 130 is in the auxiliary operation state, the first wireless charging control chip 130 monitors the operation state of the second wireless charging control chip 140. Specifically, when the first wireless charging control chip 130 is in the auxiliary working state, in response to detecting that the second wireless charging control chip 140 is in an error state for more than a predetermined time and the control right of the power unit 120 is not handed over, the first wireless charging control chip 130 executes a timeout protection procedure, so that the first wireless charging control chip 130 and the second wireless charging control chip 140 can be prevented from robbing the control right of the power unit 120, and the closed loop reliability of charging is ensured.
In one example of the present application, the first wireless charging control chip 130 is implemented as a common control chip such as millet, OPPO, VIVO, apple, etc., and the second wireless charging control chip 140 is implemented as a wireless charging control chip such as bloom, glory, etc., that is, the common control chip such as millet, OPPO, VIVO, apple, etc., is implemented as a master control chip, and the wireless charging control chip such as bloom, glory, etc., is implemented as a slave control chip. When the common control chip such as millet, OPPO, VIVO, apple identifies a label that needs to be executed by the common control chip such as millet, OPPO, VIVO, apple, the common control chip such as millet, OPPO, VIVO, apple may actively control the wireless charging control chip such as bloom and glory to enter the waiting and awakening state, and after determining that the wireless charging control chip such as bloom and glory enters the waiting and awakening state, the common control chip such as millet, OPPO, VIVO, apple obtains the control right of the power unit 120 to enter the working state. As shown in fig. 7, when the common control chip such as millet, OPPO, VIVO, and apple recognizes that the tag is required to be executed by the wireless charging control chip such as hua, glory, etc., the common control chip such as millet, OPPO, VIVO, and apple releases the control right to the power unit 120 and the common control chip such as millet, OPPO, VIVO, and apple is switched to the auxiliary operation state, and then the common control chip such as millet, OPPO, VIVO, and apple wakes up the wireless charging control chip such as hua, glory, etc., which takes over the control right of the power unit. The label which is required to be executed by the common control chip such as millet, OPPO, VIVO, apple and the like can be implemented as an ID number of the electric equipment which is matched with the common control chip such as millet, OPPO, VIVO, apple and the like, and the label which is required to be executed by the wireless charging control chip such as hua, glory and the like can be implemented as an ID number of the electric equipment which is matched with the wireless charging control chip such as hua, glory and the like.
As shown in fig. 6, the common control chip for millet, OPPO, VIVO, apple and the like includes a common wireless fast-charging control unit for millet, OPPO, VIVO, apple and the like, and a common in-band communication demodulation and sampling unit for millet, OPPO, VIVO, apple and the like electrically connected to the common wireless fast-charging control unit for millet, OPPO, VIVO, apple and the like, and the wireless charging control chip for bloom, bloom and the like includes a wireless fast-charging control unit for bloom and the like, and an in-band communication demodulation and sampling unit for bloom and the like electrically connected to the wireless fast-charging control unit for bloom and the like.
The common wireless fast-charging control unit such as millet, OPPO, VIVO and apple is a master control unit, namely a host control unit, and the wireless fast-charging control unit such as Hua and rong is a slave control unit, namely a slave control unit. The host control unit has control right to the slave control unit, and the host control unit can determine the control unit for controlling charging according to the electric equipment. When the common wireless fast-charging control unit such as millet, OPPO, VIVO, apple and the like recognizes that the wireless fast-charging control unit such as bloom and glowing and the like needs to execute the ID, the common wireless fast-charging control unit such as millet, OPPO, VIVO, apple and the like actively removes the control right to the power unit 120, and the common wireless fast-charging control unit such as millet, OPPO, VIVO, apple and the like is switched to an auxiliary working state, wherein the wireless fast-charging control unit such as bloom and glowing and the like obtains the control right of the power unit 120 after being awakened by the common wireless fast-charging control unit such as millet, OPPO, VIVO, apple and the like. When the common wireless fast-charging control unit such as millet, OPPO, VIVO, apple recognizes that the ID executed by the wireless fast-charging control unit such as sublimation, glory, etc. is not needed, the common wireless fast-charging control unit such as millet, OPPO, VIVO, apple notifies the wireless fast-charging control unit such as sublimation, glory, etc. to release the control right on the power unit 120, and makes the wireless fast-charging control unit such as sublimation, glory, etc. enter a silence state, that is, wait for a wake-up state, after the common wireless fast-charging control unit such as millet, OPPO, VIVO, apple receives the control right of the power unit 120 to execute charging.
When the common control chip such as millet, OPPO, VIVO, apple and the like is in the auxiliary working state and the wireless charging control chip such as Hua Cheng, rong and the like is in the working state, the common control chip such as millet, OPPO, VIVO, apple and the like demodulates the demodulated in-band communication demodulation signal, the circuit quality factor Q signal, the metal foreign matter detection FOD and other charging state signals are written into registers agreed with the Hua Cheng and Rong and other wireless charging control chips for the Hua Cheng and Rong and other wireless charging control chips to be called, so that the wireless charging performance of the Hua Cheng and Rong and other wireless charging control chips is optimized, and the user experience is greatly improved on the basis of improving the robustness of a wireless charging scheme. That is, when the common control chip such as millet, OPPO, VIVO, apple is in the auxiliary working state, the common control chip such as millet, OPPO, VIVO, apple transmits a charging state signal to the wireless charging control chip such as hua, glory, etc., wherein the charging state signal includes an in-band communication demodulation signal, a circuit quality factor Q signal, and a foreign metal detection FOD signal.
It should be noted that the common control chip such as millet, OPPO, VIVO, apple and the wireless charging control chip such as hua ying can transmit the charging state signal through an inter-chip channel communication mode. Specifically, the common control chip such as millet, OPPO, VIVO, apple obtains the charging state signal through the common in-band communication demodulation and sampling unit such as millet, OPPO, VIVO, apple, and then transmits the charging state signal to the wireless charging control chip such as hua ying. The common control chip such as millet, OPPO, VIVO and apple and the wireless charging control chip such as Hua Cheng and Rong can also transmit the charging state signal in other modes. In some embodiments of the present application, the master-slave control logic based wireless charging compatible system 100 further includes a communication encryption chip that is cryptographically connected to the common control chip of millet, OPPO, VIVO, apple, etc. and the wireless charging control chip of hua-to-glom, etc., wherein the common control chip of millet, OPPO, VIVO, apple, etc. transmits the charging status signal to the communication encryption chip, and the communication encryption chip transmits the charging status signal to the wireless charging control chip of hua-to-glom, etc.
It is further worth mentioning that the common control chip such as millet, OPPO, VIVO, apple and the wireless charging control chip such as hua xiang and glowing can realize advantage sharing through transmission of process parameters such as in-band communication demodulation signals, circuit quality factor Q signals, metal foreign object detection FOD signals and the like, and the common control chip such as millet, OPPO, VIVO, apple and the like and the privacy of the wireless charging control chip such as hua xiang and glowing can be reserved without transmission or sharing algorithms.
When the common control chip such as millet, OPPO, VIVO, and apple is in the auxiliary operation state, the common control chip such as millet, OPPO, VIVO, and apple monitors the operation state of the wireless charging control chip such as bloom and glory. Specifically, when the common control chip such as millet, OPPO, VIVO, apple is in the auxiliary working state, in response to detecting that the wireless charging control chip such as hua, glory is in an error state for more than a predetermined time and the control right of the power unit 120 is not handed over, the common control chip such as millet, OPPO, VIVO, apple executes a timeout protection program, so that the common control chip such as millet, OPPO, VIVO, apple and the wireless charging control chip can be prevented from robbing the control right of the power unit 120, and the closed-loop reliability of charging is ensured.
According to the above working mode of the wireless charging compatible system 100 based on the master-slave control logic, the present application proposes a wireless charging compatible method based on the master-slave control logic, which includes: s110, responding to the fact that a first wireless charging control chip identifies a label which needs to be executed by the first wireless charging control chip, controlling the second wireless charging control chip to be in the waiting awakening state by the first wireless charging control chip, and obtaining the control right of the power unit by the first wireless charging control chip after confirming that the second wireless charging control chip is in the waiting awakening state.
In some embodiments of the present application, the master-slave control logic based wireless charging compatibility method further includes: and S120, responding to the first wireless charging control chip identifying that the label executed by the second wireless charging control chip is needed, wherein the first wireless charging control chip releases the control right of the power unit, the second wireless charging control chip obtains the control right of the power unit, the first wireless charging control chip releases the control right of the power unit, the first wireless charging control chip is switched to an auxiliary working state, and the second wireless charging control chip obtains the control right of the power unit.
Specifically, after the control right of the power unit is released by the first wireless charging control chip and the first wireless charging control chip is switched to an auxiliary working state, the first wireless charging control chip wakes up the second control chip, so that the second wireless charging control chip obtains the control right of the power unit.
In some embodiments of the present application, the master-slave control logic based wireless charging compatibility method further includes: the first wireless charging control chip transmits a charging state signal to the second wireless charging control chip.
In some embodiments of the present application, the master-slave control logic based wireless charging compatibility method further includes: in response to detecting that the second wireless charging control chip is in an error state for more than a predetermined time and not handing over control of the power unit, the first wireless charging control chip performs a timeout protection procedure.
In summary, the master-slave control logic-based wireless charging compatible system 100 and the master-slave control logic-based wireless charging compatible method according to the embodiments of the present application are illustrated, and the master-slave control logic-based wireless charging compatible system 100 provides a wireless charging compatible scheme, which can improve wireless charging compatibility, and meanwhile, avoid the multi-control unit from robbing the charging control right, and improve the robustness of the wireless charging compatible scheme.
The present application and its embodiments have been described above with no limitation, and the actual structure is not limited to this, but is only one of the embodiments of the present application shown in the drawings. In summary, if one of ordinary skill in the art is informed by this disclosure, a structural manner and an embodiment similar to the technical solution should not be creatively devised without departing from the gist of the present application.
Claims (10)
1. A wireless charging compatible system based on master-slave control logic, comprising:
an energy coil power transmitting unit;
a power unit corresponding to the energy coil power transmitting unit;
the first wireless charging control chip is electrically connected with the power unit; and
the second wireless charging control chip is electrically connected with the power unit;
the first wireless charging control chip is a master control chip, and the second wireless charging control chip is a slave control chip, wherein the first wireless charging control chip is a control chip with the highest control level in the plurality of wireless charging control chips and is used for controlling the states of other wireless charging control chips so as to avoid competing for control rights among the wireless charging control chips; other wireless charging control chips are not independently selected to enter corresponding states respectively, but are controlled by the first wireless charging control chip to enter corresponding states;
the first wireless charging control chip is used for controlling the second wireless charging control chip to be in a waiting and awakening state when the first wireless charging control chip is in a working state, and obtaining control right on the power unit after confirming that the second wireless charging control chip is in the waiting and awakening state;
the first wireless charging control chip is further used for releasing the control right of the power unit and switching the control right to the power unit to an auxiliary working state after the first wireless charging control chip is used for responding to the label which is required to be executed by the second wireless charging control chip, and waking up the second wireless charging control chip, so that the second wireless charging control chip obtains the control right of the power unit.
2. The master-slave control logic based wireless charging compatible system of claim 1, wherein the first wireless charging control chip comprises a first wireless charging control unit, a first in-band communication demodulation and sampling unit electrically connected to the first wireless charging control unit, and the second wireless charging control chip comprises a second wireless charging control unit, a second in-band communication demodulation and sampling unit electrically connected to the second wireless charging control unit.
3. The master-slave control logic based wireless charging compatible system of claim 2, wherein the first wireless charging control chip is further configured to transmit a charge status signal to the second wireless charging control chip.
4. The master-slave control logic based wireless charging compatible system of claim 3 wherein the state of charge signal comprises an in-band communication demodulation signal, a circuit quality factor Q signal, a metallic foreign object detection FOD signal.
5. The master-slave control logic based wireless charging compatible system of claim 1, wherein the first wireless charging control chip is further configured to monitor an operating state of the second wireless charging control chip when the auxiliary operating state is in the auxiliary operating state.
6. The master-slave control logic based wireless charging compatible system of claim 5, wherein the first wireless charging control chip is further configured to execute a timeout protection procedure in response to detecting that the second wireless charging control chip is in an error state for more than a predetermined time without handing over control rights of the power unit when in the auxiliary operating state.
7. The master-slave control logic based wireless charging compatible system of claim 3 wherein the first wireless charging control chip obtains the state of charge signal through the first in-band communication demodulation and sampling unit.
8. A wireless charging compatible method based on master-slave control logic, comprising:
in response to a first wireless charging control chip identifying a tag which needs to be executed by the first wireless charging control chip, the first wireless charging control chip controls a second wireless charging control chip to be in a waiting awakening state, and after confirming that the second wireless charging control chip is in the waiting awakening state, the first wireless charging control chip obtains control right on a power unit; and
in response to the first wireless charging control chip identifying a tag which needs to be executed by the second wireless charging control chip, after the first wireless charging control chip removes control rights to the power unit and switches to an auxiliary working state, the first wireless charging control chip wakes up the second wireless charging control chip, so that the second wireless charging control chip obtains control rights to the power unit;
the first wireless charging control chip is the control chip with the highest control level in the plurality of wireless charging control chips and is used for controlling the states of other wireless charging control chips so as to avoid competing for control rights among the wireless charging control chips; the other wireless charging control chips do not autonomously select to enter the corresponding states respectively, but are controlled by the first wireless charging control chip to enter the corresponding states.
9. The master-slave control logic based wireless charging compatibility system of claim 8, wherein the master-slave control logic based wireless charging compatibility method further comprises: the first wireless charging control chip transmits a charging state signal to the second wireless charging control chip.
10. The master-slave control logic based wireless charging compatibility method of claim 8, further comprising:
in response to detecting that the second wireless charging control chip is in an error state for more than a predetermined time and not handing over control of the power unit, the first wireless charging control chip performs a timeout protection procedure.
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| CN115129142A (en) * | 2021-03-25 | 2022-09-30 | Oppo广东移动通信有限公司 | Control method, control device, electronic device, and storage medium |
| CN116470659A (en) * | 2023-05-11 | 2023-07-21 | 科博达技术股份有限公司 | Vehicle-mounted wireless charger and wireless charging method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115129142A (en) * | 2021-03-25 | 2022-09-30 | Oppo广东移动通信有限公司 | Control method, control device, electronic device, and storage medium |
| CN116470659A (en) * | 2023-05-11 | 2023-07-21 | 科博达技术股份有限公司 | Vehicle-mounted wireless charger and wireless charging method |
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