CN112910105A - Wireless charging system and method capable of automatically waking up - Google Patents
Wireless charging system and method capable of automatically waking up Download PDFInfo
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- CN112910105A CN112910105A CN202110068913.7A CN202110068913A CN112910105A CN 112910105 A CN112910105 A CN 112910105A CN 202110068913 A CN202110068913 A CN 202110068913A CN 112910105 A CN112910105 A CN 112910105A
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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
- H02J50/80—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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Abstract
The invention discloses an automatic awakening wireless charging system, which comprises a transmitting system and a receiving system, wherein the transmitting system is connected with a power grid, the transmitting system comprises a transmitting end secondary power supply module, a transmitting end control and communication module, a high-frequency inversion module and a transmitting end coupling coil, the receiving system is connected with a robot battery, the invention is used for receiving a connection signal sent by a transmitting system and establishing connection with the transmitting system, and the receiving system comprises a receiving end coupling coil, a high-frequency rectification module, a receiving end secondary power module, a receiving end control and communication module and a one-way conduction module.
Description
Technical Field
The invention relates to the technical field of power electronic systems, in particular to an automatic awakening wireless charging system and method.
Background
In a mobile wireless charging system such as a robot, how a receiving end is close to a transmitting end to automatically wake up the whole system needs to be considered, so that wireless charging automatically and normally works. Meanwhile, the problem of standby loss of a transmitting end under the condition of no receiving end is also considered. The current automatic awakening mainly adopts a real-time communication mode, but secondary control systems of a transmitting end and a receiving end in the real-time communication mode are always in a working state, so that the loss of equipment such as a robot is not negligible, and meanwhile, the reliability of the system is low due to long-time dependence on communication in an extreme environment.
At present, mobile wireless charging systems such as robots in the market are mainly awakened by judging the distance between a receiving end and a transmitting end, the transmission power of the transmitting end, the power difference between the transmitting end and the receiving end and the like. The transmitting terminal is in a working state for a long time, and the high-frequency inverter power device, the resonant capacitor, the coupling coil and the like can continuously pass through resonant current, so that high loss and heat productivity are generated. The receiving end is a passive rectification circuit, the passive rectification circuit works for a long time, and weak current circuits such as control and communication of the passive rectification circuit can continuously consume the stored electric quantity of equipment such as a robot and the like, so that the cruising ability of the equipment is reduced. Therefore, these products do not solve the problem of automatic wake-up of wireless charging for objective needs of how to reduce standby loss of the transmitting end and how to reduce loss of the receiving end.
In view of the above, there is a need for an automatic wake-up wireless charging system and method, which suppress the secondary power consumption of the receiving end and the secondary power consumption and power circuit of the transmitting end.
Disclosure of Invention
The present invention is directed to a wireless charging system and method for automatic wake-up, so as to solve the problems mentioned in the background art.
In order to solve the technical problems, the invention provides the following technical scheme: an automatic awakening wireless charging system comprises a transmitting system and a receiving system,
the transmitting system is connected with the power grid and used for transmitting a connecting signal to the robot,
the receiving system is connected with the robot battery and used for receiving a connection signal sent by the transmitting system and establishing connection with the transmitting system, a one-way conduction module is arranged in the receiving system, the one-way conduction module enables the receiving system to be charged only in the robot battery, and electricity can not be taken from the robot battery.
The invention achieves the purpose of automatically waking up the charging state by controlling the working states of the transmitting system and the receiving system, thereby completing the transmission process of electric energy, namely, the electric energy is transmitted from a power grid to the transmitting system, then from the transmitting system to the receiving system, and finally transmitted from the receiving system to the robot battery.
Further, the receiving system comprises a receiving end coupling coil, a high-frequency rectifying module, a receiving end secondary power supply module, a receiving end control and communication module and a one-way conduction module,
the receiving end coupling coil is used for receiving electric energy from a transmitting system;
the high-frequency rectification module is used for converting alternating current transmitted by the coupling coil of the receiving end into direct current;
the receiving end secondary power supply module is used for converting the electric energy transmitted by the high-frequency rectification module into a voltage specification required by a receiving system circuit;
the receiving end control and communication module is used for exchanging information with the transmitting system and controlling the working state of the receiving system, the information exchanged between the receiving end control and communication module and the transmitting system is digitally encrypted, namely, the information to be transmitted is encrypted in a digital encryption mode, then the encrypted digital information is converted into a radio wave form for transmission and exchange, an information receiving party needs to convert the received radio wave into a digital signal, then the digital signal is decrypted, and the decrypted result is the transmitted information content;
the one-way conduction module is used for cutting off a path of the whole receiving system circuit directly getting electricity from a robot battery, so that the consumption of the receiving system is zero on the basis that power and communication exchange are not established in the transmitting system and the receiving system.
The modules in the receiving system cooperate with each other, and the unidirectional conduction module limits the circuit of the whole receiving system to directly take power from the robot battery, so that when the receiving system is far away from the transmitting system, the receiving end coupling coil cannot receive the electric energy transmitted by the transmitting end coupling coil, the circuit of the receiving system cannot acquire the electric energy, the receiving system cannot normally work, the receiving end control and communication module cannot normally establish communication with the transmitting end control and communication module, the transmitting end control and communication module judges that no receiving system exists, the transmitting system is in an intermittent working state, namely, the power circuit works for a period of time Ton and sleeps for a period of time Toff, and the loss of the transmitting system is reduced.
Further, the one-way conduction module is connected between the receiving system circuit and the robot battery,
when the transmitting system is not connected with the receiving system, the one-way conduction module plays a role of isolating, forbids the receiving system circuit to take power from the robot battery,
when the transmitting system is connected with the receiving system, the one-way conduction module plays a role in communication, the transmitting system transmits electric energy to the receiving system circuit, and the one-way conduction module transmits the electric energy in the receiving system circuit to the robot battery for charging the robot battery.
The unidirectional conduction module is the most core part in the receiving system, the module limits the transmission direction of electric energy in the receiving system, the electric energy can only be transmitted from the high-frequency rectification module to the direction of the robot battery, and the electric quantity in the robot battery cannot be transmitted to a circuit of the receiving system through the unidirectional conduction module, so that the electric quantity of the robot battery is prevented from being consumed by the receiving system, and the endurance time of the robot battery is prolonged.
Furthermore, the transmitting system comprises a transmitting end secondary power supply module, a transmitting end control and communication module, a high-frequency inversion module and a transmitting end coupling coil,
the transmitting end secondary power supply module is used for converting electric energy acquired from a power grid into a voltage specification required by a transmitting system circuit;
the transmitting end control and communication module is used for exchanging information with the receiving system and controlling the working state of the transmitting system, the information exchanged between the transmitting end control and communication module and the receiving system is digitally encrypted, namely, the information to be transmitted is encrypted in a digital encryption mode, then the encrypted digital information is converted into a radio wave form for transmission and exchange, an information receiving party needs to convert the received radio wave into a digital signal, then decrypt the digital signal, and the decrypted result is the transmitted information content;
the high-frequency inversion module is used for converting direct current acquired from a power grid into alternating current;
the transmitting end coupling coil is connected with the high-frequency inversion module and used for transmitting the electric energy to a receiving system through the receiving end coupling coil.
The invention is characterized in that each module in the transmitting system is coordinated and matched to realize the charging and dormancy functions of the transmitting system together, the transmitting terminal control and communication module adopts a digital encryption technology to encrypt the communication content when performing communication and exchange, and prevents external equipment from cracking the communication content of the transmitting terminal control and communication module, so as to establish connection with the transmitting system and perform wireless charging by using the cracked content, in the transmitting system, the most core part is the transmitting terminal control and communication module, when the module receives the information transmitted by the receiving system, the transmitting terminal control and communication module judges that the receiving system is available and controls the transmitting system to normally work, when the module cannot receive the information transmitted by the receiving system, the transmitting terminal control and communication module judges that the receiving system is unavailable, the transmitting system works in an intermittent working state, namely, the power circuit works for a period of time Ton, and the system is dormant for a period of time Toff, so that the loss of a transmitting system is reduced.
A wireless charging method capable of automatically waking up comprises the following specific steps:
step (1): when the receiving end coupling coil of the receiving system is not close to the transmitting end coupling coil of the transmitting system, the receiving system circuit does not supply power at the moment, the receiving end control and communication module does not work, the transmitting end control and communication module does not receive any communication data, the transmitting end control and communication module judges that no receiving system exists, the transmitting system works in an intermittent working state, namely, the power circuit works for a period of time Ton and sleeps for a period of time Toff, and the loss of the transmitting system is reduced;
the invention judges whether the receiving system exists or not by judging whether the transmitting end control and communication module can receive the communication data generated by the receiving end control and communication module, thereby adjusting the working state of the transmitting system.
Step (2): when the battery power of the robot is insufficient, the robot returns, a receiving end coupling coil in a receiving system of the robot is close to a transmitting end coupling coil of a transmitting system, and stays for a long time, wherein the stay time is longer than the power circuit sleep time Toff of the transmitting system;
the invention aims to ensure that the power circuit of the transmitting system can be switched to the working time Ton within the stay time of the robot, and prevent the power circuit of the transmitting system from being always in the sleep time Toff within the stay time of the robot, so that the transmitting system and the receiving system cannot establish communication connection to finish automatic awakening.
And (3): when a power circuit of a transmitting system is in a Ton interval of an intermittent working state, a receiving end coupling coil in a robot receiving system can induct and receive electric energy transmitted by the transmitting end coupling coil;
the receiving end coupling coil inducts and receives the electric energy transmitted by the transmitting end coupling coil, and transmits the electric energy to a circuit of a receiving system, thereby supplying power for a receiving end control and communication module.
And (4): the receiving end secondary power supply module converts the electric energy transmitted by the high-frequency rectification module into a voltage specification required by a receiving system circuit, and the receiving end control and communication module transmits communication data outwards;
the invention aims to establish connection with a transmitting system by a receiving end control and communication module for transmitting communication data outwards.
And (5): a transmitting end control and communication module of the transmitting system receives communication data transmitted by a receiving end control and communication module, and the two parties successfully handshake and establish connection;
the communication handshake in the invention means that in communication, two communication parties negotiate the communication mode before communication, and simultaneously tell the other party the process of being ready to send and receive data. Successful handshaking indicates that a communicative link is established and data transfer is possible.
And (6): the transmitting terminal control and communication module diagnoses that the receiving system is normal, the transmitting system is separated from the intermittent working mode and enters the normal working mode, namely, the power circuit of the transmitting system is always in the working state Ton;
when the transmitting system diagnoses that the receiving system is normal, the transmitting system is separated from an intermittent working mode, so that the problem that the charging of a robot battery is interrupted due to the fact that a power circuit of the transmitting system is in a dormant state in the charging process is solved.
And (7): the receiving end control and communication module diagnoses that the transmitting system is normal, the one-way conduction module plays a role in communication, the transmitting system transmits electric energy to the receiving system circuit, and the one-way conduction module transmits the electric energy in the receiving system circuit to the robot battery for charging the robot battery;
and (8): and (4) completing an automatic awakening process, namely enabling the transmitting system and the receiving system to enter a normal working state to normally charge the robot battery.
Further, the sleep time Toff of the power circuit of the transmitting system in the step (2) may be greater than the operating time Ton, and the reduced loss rate S of the transmitting system, that is, the reduced loss rate S of the transmitting system may be calculated according to the sleep time Toff and the operating time Ton of the power circuit of the transmitting system, that is, the reduced loss rate S of the transmitting system may be calculated
In ensuring power circuitsUnder the condition of unchanged working time, if the power consumption of the transmitting system is required to be reduced, the operation can be completed by increasing the sleep time of the power circuit, but the staying time for establishing communication connection when the robot returns is also relatively increased.
The sleep time of the power circuit of the transmitting system of the invention can be set, the sleep time Toff can also be less than or equal to the working time Ton, the sleep time Toff of the power circuit of the transmitting system is more than the working time Ton, which is to reduce the loss of the transmitting system more efficiently, and prolong the stay time of establishing communication connection when the robot returns, according to the calculation formula of the reduced loss rate S, the larger the value of S is, the longer the sleep time of the power circuit is under the condition that the working time Ton of the power circuit is fixed, and simultaneously, in order to ensure that the transmitting system and the receiving system can successfully establish connection within the stay time of the robot, the stay time of the robot is prevented from being just within the sleep time Toff of the power circuit of the transmitting system, therefore, the stay time of the robot must be greater than the sleep time Toff of the power circuit of the transmitting system, therefore, the loss rate reduced by the transmitting system is higher, under the condition that the working time Ton of the power circuit is fixed, the larger the value of the sleep time Toff of the power circuit of the transmitting system is, the longer the staying time for establishing communication connection when the robot returns.
Further, when the transmitting system enters the charging state in the step (8), the high-frequency inversion module converts direct current obtained from the power grid into alternating current, and then the transmitting end coupling coil connected with the high-frequency inversion module transmits the electric energy to the receiving system.
The high-frequency inversion module converts direct current acquired from a power grid into alternating current so as to realize wireless transmission of electric energy through the transmitting end coupling coil and the receiving end coupling coil.
Compared with the prior art, the invention has the following beneficial effects: the invention inhibits the secondary power consumption of the receiving end, the secondary power consumption of the transmitting end and the power circuit, can reduce the dependence of robot equipment on communication in extreme environment, and improves the cruising ability of the robot.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic diagram of the components of the transmission system of the present invention;
FIG. 2 is a schematic diagram of the components of the receiving system of the present invention;
FIG. 3 is a flow chart of an auto-wake wireless charging method according to the present invention;
FIG. 4 is a schematic diagram of the operation mode of the transmitting end power circuit of the present invention;
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-4, the present invention provides the following technical solutions: an automatic awakening wireless charging system comprises a transmitting system and a receiving system,
the transmitting system is connected with the power grid and used for transmitting a connecting signal to the robot,
the receiving system is connected with the robot battery and used for receiving a connection signal sent by the transmitting system and establishing connection with the transmitting system, a one-way conduction module is arranged in the receiving system, the one-way conduction module enables the receiving system to be charged only in the robot battery, and electricity can not be taken from the robot battery.
The invention achieves the purpose of automatically waking up the charging state by controlling the working states of the transmitting system and the receiving system, thereby completing the transmission process of electric energy, namely, the electric energy is transmitted from a power grid to the transmitting system, then from the transmitting system to the receiving system, and finally transmitted from the receiving system to the robot battery.
The receiving system comprises a receiving end coupling coil, a high-frequency rectifying module, a receiving end secondary power supply module, a receiving end control and communication module and a one-way conduction module,
the receiving end coupling coil is used for receiving electric energy from a transmitting system;
the high-frequency rectification module is used for converting alternating current transmitted by the coupling coil of the receiving end into direct current;
the receiving end secondary power supply module is used for converting the electric energy transmitted by the high-frequency rectification module into a voltage specification required by a receiving system circuit;
for example: the voltage transmitted from the high-frequency rectifying module is 220V, the voltage required by a receiving system circuit is 5V, and the voltage conversion can be completed by the receiving end secondary power supply module.
The receiving end control and communication module is used for exchanging information with the transmitting system and controlling the working state of the receiving system, the information exchanged between the receiving end control and communication module and the transmitting system is digitally encrypted, namely, the information to be transmitted is encrypted in a digital encryption mode, then the encrypted digital information is converted into a radio wave form for transmission and exchange, an information receiving party needs to convert the received radio wave into a digital signal, then the digital signal is decrypted, and the decrypted result is the transmitted information content;
for example: before the transmitting system establishes communication connection with the receiving system, the receiving end control and communication module will want the transmitting end control and communication module to send communication information.
The one-way conduction module is used for cutting off a path of the whole receiving system circuit directly getting electricity from a robot battery, so that the consumption of the receiving system is zero on the basis that power and communication exchange are not established in the transmitting system and the receiving system.
The modules in the receiving system cooperate with each other, and the unidirectional conduction module limits the circuit of the whole receiving system to directly take power from the robot battery, so that when the receiving system is far away from the transmitting system, the receiving end coupling coil cannot receive the electric energy transmitted by the transmitting end coupling coil, the circuit of the receiving system cannot acquire the electric energy, the receiving system cannot normally work, the receiving end control and communication module cannot normally establish communication with the transmitting end control and communication module, the transmitting end control and communication module judges that no receiving system exists, the transmitting system is in an intermittent working state, namely, the power circuit works for a period of time Ton and sleeps for a period of time Toff, and the loss of the transmitting system is reduced.
The one-way conduction module is connected between the receiving system circuit and the robot battery,
when the transmitting system is not connected with the receiving system, the one-way conduction module plays a role of isolating, forbids the receiving system circuit to take power from the robot battery,
when the transmitting system is connected with the receiving system, the one-way conduction module plays a role in communication, the transmitting system transmits electric energy to the receiving system circuit, and the one-way conduction module transmits the electric energy in the receiving system circuit to the robot battery for charging the robot battery.
The unidirectional conduction module is the most core part in the receiving system, the module limits the transmission direction of electric energy in the receiving system, the electric energy can only be transmitted from the high-frequency rectification module to the direction of the robot battery, and the electric quantity in the robot battery cannot be transmitted to a circuit of the receiving system through the unidirectional conduction module, so that the electric quantity of the robot battery is prevented from being consumed by the receiving system, and the endurance time of the robot battery is prolonged.
The transmitting system comprises a transmitting end secondary power supply module, a transmitting end control and communication module, a high-frequency inversion module and a transmitting end coupling coil,
the transmitting end secondary power supply module is used for converting electric energy acquired from a power grid into a voltage specification required by a transmitting system circuit;
for example: the voltage obtained from the power grid is 220V, the voltage required by a circuit of the transmitting system is 5V, and the voltage conversion can be completed by the transmitting terminal secondary power supply module.
The transmitting end control and communication module is used for exchanging information with the receiving system and controlling the working state of the transmitting system, the information exchanged between the transmitting end control and communication module and the receiving system is digitally encrypted, namely, the information to be transmitted is encrypted in a digital encryption mode, then the encrypted digital information is converted into a radio wave form for transmission and exchange, an information receiving party needs to convert the received radio wave into a digital signal, then decrypt the digital signal, and the decrypted result is the transmitted information content;
for example: when the control and communication module of the transmitting terminal fails to complete the communication connection with the receiving system, the control and communication module of the transmitting terminal controls the transmitting system to enter an intermittent working state.
The high-frequency inversion module is used for converting direct current acquired from a power grid into alternating current;
the transmitting end coupling coil is connected with the high-frequency inversion module and used for transmitting the electric energy to a receiving system through the receiving end coupling coil.
The invention is characterized in that each module in the transmitting system is coordinated and matched to realize the charging and dormancy functions of the transmitting system together, the transmitting terminal control and communication module adopts a digital encryption technology to encrypt the communication content when performing communication and exchange, and prevents external equipment from cracking the communication content of the transmitting terminal control and communication module, so as to establish connection with the transmitting system and perform wireless charging by using the cracked content, in the transmitting system, the most core part is the transmitting terminal control and communication module, when the module receives the information transmitted by the receiving system, the transmitting terminal control and communication module judges that the receiving system is available and controls the transmitting system to normally work, when the module cannot receive the information transmitted by the receiving system, the transmitting terminal control and communication module judges that the receiving system is unavailable, the transmitting system works in an intermittent working state, namely, the power circuit works for a period of time Ton, and the system is dormant for a period of time Toff, so that the loss of a transmitting system is reduced.
A wireless charging method capable of automatically waking up comprises the following specific steps:
step (1): when the receiving end coupling coil of the receiving system is not close to the transmitting end coupling coil of the transmitting system, the receiving system circuit does not supply power at the moment, the receiving end control and communication module does not work, the transmitting end control and communication module does not receive any communication data, the transmitting end control and communication module judges that no receiving system exists, the transmitting system works in an intermittent working state, namely, the power circuit works for a period of time Ton and sleeps for a period of time Toff, and the loss of the transmitting system is reduced;
the invention judges whether the receiving system exists or not by judging whether the transmitting end control and communication module can receive the communication data generated by the receiving end control and communication module, thereby adjusting the working state of the transmitting system.
For example: when the transmitting system works intermittently, the power circuit works for 2 seconds and then sleeps for 3 seconds, and the operation is repeated in a circulating mode, and during the period, the power circuit does not generate loss in the sleeping time, and the loss of the transmitting system is reduced by three fifths compared with the normal working state of the transmitting system in unit time.
Step (2): when the battery power of the robot is insufficient, the robot returns, a receiving end coupling coil in a receiving system of the robot is close to a transmitting end coupling coil of a transmitting system, and stays for a long time, wherein the stay time is longer than the power circuit sleep time Toff of the transmitting system;
the invention aims to ensure that the power circuit of the transmitting system can be switched to the working time Ton within the stay time of the robot, and prevent the power circuit of the transmitting system from being always in the sleep time Toff within the stay time of the robot, so that the transmitting system and the receiving system cannot establish communication connection to finish automatic awakening.
For example: the power circuit sleep time Toff of the transmitting system is 3 seconds,
if the staying time of the robot is 2 seconds and the staying time of the robot is less than the sleeping time of the power circuit of the transmitting system, the working states of the power circuit of the transmitting system are all sleeping states during the staying period of the robot, the receiving system cannot establish communication connection with the transmitting system, and thus the automatic awakening process cannot be completed, namely the transmitting system cannot charge the robot battery,
if the staying time of the robot is 4 seconds and the staying time of the robot is longer than the sleeping time of the power circuit of the transmitting system, the power circuit of the transmitting system corresponding to the staying time of the robot must have a stage in the working time Ton, and the receiving system can establish communication connection with the transmitting system in the stage, so that an automatic awakening process is completed, and the robot battery is charged.
And (3): when a power circuit of a transmitting system is in a Ton interval of an intermittent working state, a receiving end coupling coil in a robot receiving system can induct and receive electric energy transmitted by the transmitting end coupling coil;
the receiving end coupling coil inducts and receives the electric energy transmitted by the transmitting end coupling coil, and transmits the electric energy to a circuit of a receiving system, thereby supplying power for a receiving end control and communication module.
And (4): the receiving end secondary power supply module converts the electric energy transmitted by the high-frequency rectification module into a voltage specification required by a receiving system circuit, and the receiving end control and communication module transmits communication data outwards;
for example: the voltage of the electric energy received by the coupling coil of the receiving end is 220V, the voltage required by the circuit of the receiving system is 5V,
the high-frequency rectification module firstly converts 220V alternating current received by the coupling coil of the receiving end into 220V direct current, then the secondary power supply module of the receiving end converts the 220V direct current converted by the high-frequency rectification module into 5V direct current required by a circuit of a receiving system, and the control and communication module of the receiving end obtains 5V power supply converted by the secondary power supply module of the receiving end, so that the high-frequency rectification module can normally work and transmits communication data outwards.
The invention aims to establish connection with a transmitting system by a receiving end control and communication module for transmitting communication data outwards.
And (5): a transmitting end control and communication module of the transmitting system receives communication data transmitted by a receiving end control and communication module, and the two parties successfully handshake and establish connection;
the communication handshake in the invention means that in communication, two communication parties negotiate the communication mode before communication, and simultaneously tell the other party the process of being ready to send and receive data. Successful handshaking indicates that a communicative link is established and data transfer is possible.
And (6): the transmitting terminal control and communication module diagnoses that the receiving system is normal, the transmitting system is separated from the intermittent working mode and enters the normal working mode, namely, the power circuit of the transmitting system is always in the working state Ton;
when the transmitting system diagnoses that the receiving system is normal, the transmitting system is separated from an intermittent working mode, so that the problem that the charging of a robot battery is interrupted due to the fact that a power circuit of the transmitting system is in a dormant state in the charging process is solved.
And (7): the receiving end control and communication module diagnoses that the transmitting system is normal, the one-way conduction module plays a role in communication, the transmitting system transmits electric energy to the receiving system circuit, and the one-way conduction module transmits the electric energy in the receiving system circuit to the robot battery for charging the robot battery;
and (8): and (4) completing an automatic awakening process, namely enabling the transmitting system and the receiving system to enter a normal working state to normally charge the robot battery.
In the step (2), the sleep time Toff of the power circuit of the transmitting system can be greater than the working time Ton, and the reduced loss rate S of the transmitting system can be calculated according to the sleep time Toff and the working time Ton of the power circuit of the transmitting system, namely the reduced loss rate S is calculated
Under the condition of ensuring that the working time of the power circuit is not changed, if the power consumption of the transmitting system is reduced, the operation can be completed by increasing the sleep time of the power circuit, but the staying time for establishing communication connection when the robot returns is relatively increased.
The invention can set the dormancy time of the transmitting system power circuit, the dormancy time Toff can be less than or equal to the working time Ton, the dormancy time Toff of the transmitting system power circuit is more than the working time Ton, in order to reduce the loss of the transmitting system more efficiently, and prolong the staying time of establishing communication connection when the robot returns, according to the calculation formula of the reduced loss rate S, the larger the value of S, the longer the dormancy time of the power circuit under the condition that the working time Ton of the power circuit is fixed, and at the same time, in order to ensure that the transmitting system and the receiving system can successfully establish connection in the staying time of the robot, the staying time of the robot is just in the dormancy time Toff of the transmitting system power circuit, therefore, the staying time of the robot must be more than the dormancy time Toff of the transmitting system power circuit, therefore, the loss rate reduced by the transmitting system is higher, under the condition that the working time Ton of the power circuit is fixed, the larger the value of the sleep time Toff of the power circuit of the transmitting system is, the longer the staying time for establishing communication connection when the robot returns.
For example: the sleep time Toff of the power circuit of the transmitting system is 2 seconds, the working time Ton is 2 seconds,
then the loss rate of the transmitting system is reduced at this time
The staying time for establishing communication connection when the robot returns is more than 2 seconds;
when the sleep time Toff of the power circuit of the transmitting system is 3 seconds, and the working time Ton is constant,
then the loss rate of the transmitting system is reduced at this time
The residence time for establishing the communication connection when the robot returns is more than 3 seconds.
And (4) when the transmitting system enters a charging state in the step (8), the high-frequency inversion module converts direct current acquired from the power grid into alternating current, and then the electric energy is transmitted to the receiving system through the transmitting end coupling coil connected with the high-frequency inversion module.
The high-frequency inversion module converts direct current acquired from a power grid into alternating current so as to realize wireless transmission of electric energy through the transmitting end coupling coil and the receiving end coupling coil.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. An automatically awakening wireless charging system is characterized by comprising a transmitting system and a receiving system,
the transmitting system is connected with the power grid and used for transmitting a connecting signal to the robot,
the receiving system is connected with the robot battery and used for receiving a connection signal sent by the transmitting system and establishing connection with the transmitting system, a one-way conduction module is arranged in the receiving system, the one-way conduction module enables the receiving system to be charged only in the robot battery, and electricity can not be taken from the robot battery.
2. The wireless charging system of claim 1, wherein: the receiving system comprises a receiving end coupling coil, a high-frequency rectifying module, a receiving end secondary power supply module, a receiving end control and communication module and a one-way conduction module,
the receiving end coupling coil is used for receiving electric energy from a transmitting system;
the high-frequency rectification module is used for converting alternating current transmitted by the coupling coil of the receiving end into direct current;
the receiving end secondary power supply module is used for converting the electric energy transmitted by the high-frequency rectification module into a voltage specification required by a receiving system circuit;
the receiving end control and communication module is used for exchanging information with the transmitting system and controlling the working state of the receiving system, the information exchanged between the receiving end control and communication module and the transmitting system is digitally encrypted, namely, the information to be transmitted is encrypted in a digital encryption mode, then the encrypted digital information is converted into a radio wave form for transmission and exchange, an information receiving party needs to convert the received radio wave into a digital signal, then the digital signal is decrypted, and the decrypted result is the transmitted information content;
the one-way conduction module is used for cutting off a path of the whole receiving system circuit directly getting electricity from a robot battery, so that the consumption of the receiving system is zero on the basis that power and communication exchange are not established in the transmitting system and the receiving system.
3. The wireless charging system of claim 2, wherein: the one-way conduction module is connected between the receiving system circuit and the robot battery,
when the transmitting system is not connected with the receiving system, the one-way conduction module plays a role of isolating, forbids the receiving system circuit to take power from the robot battery,
when the transmitting system is connected with the receiving system, the one-way conduction module plays a role in communication, the transmitting system transmits electric energy to the receiving system circuit, and the one-way conduction module transmits the electric energy in the receiving system circuit to the robot battery for charging the robot battery.
4. The wireless charging system of claim 2, wherein: the transmitting system comprises a transmitting end secondary power supply module, a transmitting end control and communication module, a high-frequency inversion module and a transmitting end coupling coil,
the transmitting end secondary power supply module is used for converting electric energy acquired from a power grid into a voltage specification required by a transmitting system circuit;
the transmitting end control and communication module is used for exchanging information with the receiving system and controlling the working state of the transmitting system, the information exchanged between the transmitting end control and communication module and the receiving system is digitally encrypted, namely, the information to be transmitted is encrypted in a digital encryption mode, then the encrypted digital information is converted into a radio wave form for transmission and exchange, an information receiving party needs to convert the received radio wave into a digital signal, then decrypt the digital signal, and the decrypted result is the transmitted information content;
the high-frequency inversion module is used for converting direct current acquired from a power grid into alternating current;
the transmitting end coupling coil is connected with the high-frequency inversion module and used for transmitting the electric energy to a receiving system through the receiving end coupling coil.
5. A wireless charging method capable of automatically waking up is characterized in that: the method comprises the following specific steps:
step (1): when the receiving end coupling coil of the receiving system is not close to the transmitting end coupling coil of the transmitting system, the receiving system circuit does not supply power at the moment, the receiving end control and communication module does not work, the transmitting end control and communication module does not receive any communication data, the transmitting end control and communication module judges that no receiving system exists, the transmitting system works in an intermittent working state, namely, the power circuit works for a period of time Ton and sleeps for a period of time Toff, and the loss of the transmitting system is reduced;
step (2): when the battery power of the robot is insufficient, the robot returns, a receiving end coupling coil in a receiving system of the robot is close to a transmitting end coupling coil of a transmitting system, and stays for a long time, wherein the stay time is longer than the power circuit sleep time Toff of the transmitting system;
and (3): when a power circuit of a transmitting system is in a Ton interval of an intermittent working state, a receiving end coupling coil in a robot receiving system can induct and receive electric energy transmitted by the transmitting end coupling coil;
and (4): the receiving end secondary power supply module converts the electric energy transmitted by the high-frequency rectification module into a voltage specification required by a receiving system circuit, and the receiving end control and communication module transmits communication data outwards;
and (5): a transmitting end control and communication module of the transmitting system receives communication data transmitted by a receiving end control and communication module, and the two parties successfully handshake and establish connection;
and (6): the transmitting terminal control and communication module diagnoses that the receiving system is normal, the transmitting system is separated from the intermittent working mode and enters the normal working mode, namely, the power circuit of the transmitting system is always in the working state Ton;
and (7): the receiving end control and communication module diagnoses that the transmitting system is normal, the one-way conduction module plays a role in communication, the transmitting system transmits electric energy to the receiving system circuit, and the one-way conduction module transmits the electric energy in the receiving system circuit to the robot battery for charging the robot battery;
and (8): and (4) completing an automatic awakening process, namely enabling the transmitting system and the receiving system to enter a normal working state to normally charge the robot battery.
6. The wireless charging method for automatic wake-up according to claim 5, wherein: the sleep time Toff of the power circuit of the transmitting system in the step (2) is larger than that in workingThe time Ton, and the loss rate S reduced by the transmitting system, i.e. the loss rate S reduced by the transmitting system, can be calculated according to the sleep time Toff and the working time Ton of the power circuit of the transmitting system
Under the condition of ensuring that the working time of the power circuit is not changed, if the power consumption of the transmitting system is reduced, the operation can be completed by increasing the sleep time of the power circuit, but the staying time for establishing communication connection when the robot returns is relatively increased.
7. The wireless charging method for automatic wake-up according to claim 5, wherein: and (4) when the transmitting system enters a charging state in the step (8), the high-frequency inversion module converts direct current acquired from the power grid into alternating current, and then the electric energy is transmitted to the receiving system through the transmitting end coupling coil connected with the high-frequency inversion module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202110068913.7A CN112910105A (en) | 2021-01-19 | 2021-01-19 | Wireless charging system and method capable of automatically waking up |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110068913.7A CN112910105A (en) | 2021-01-19 | 2021-01-19 | Wireless charging system and method capable of automatically waking up |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117526496A (en) * | 2023-10-13 | 2024-02-06 | 珠海智融科技股份有限公司 | Power supply control system, power supply control method and mobile power supply equipment |
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2021
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117526496A (en) * | 2023-10-13 | 2024-02-06 | 珠海智融科技股份有限公司 | Power supply control system, power supply control method and mobile power supply equipment |
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Application publication date: 20210604 |