WO2014176873A1 - 基于无线电力传输系统的通讯信号传输方法和系统 - Google Patents
基于无线电力传输系统的通讯信号传输方法和系统 Download PDFInfo
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- WO2014176873A1 WO2014176873A1 PCT/CN2013/085456 CN2013085456W WO2014176873A1 WO 2014176873 A1 WO2014176873 A1 WO 2014176873A1 CN 2013085456 W CN2013085456 W CN 2013085456W WO 2014176873 A1 WO2014176873 A1 WO 2014176873A1
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- communication
- signal
- communication signal
- receiving end
- transmitting end
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- 238000004891 communication Methods 0.000 title claims abstract description 312
- 230000005540 biological transmission Effects 0.000 title claims abstract description 134
- 230000008054 signal transmission Effects 0.000 title claims abstract description 51
- 238000000034 method Methods 0.000 title claims abstract description 33
- 230000008878 coupling Effects 0.000 claims description 17
- 238000010168 coupling process Methods 0.000 claims description 17
- 238000005859 coupling reaction Methods 0.000 claims description 17
- 239000002184 metal Substances 0.000 claims description 6
- 238000001514 detection method Methods 0.000 claims 4
- 230000008569 process Effects 0.000 abstract description 7
- 230000002457 bidirectional effect Effects 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 2
- 230000002159 abnormal effect Effects 0.000 description 8
- 230000008859 change Effects 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 4
- 230000007704 transition Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 230000005856 abnormality Effects 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000005674 electromagnetic induction Effects 0.000 description 1
Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B5/00—Near-field transmission systems, e.g. inductive or capacitive transmission systems
- H04B5/70—Near-field transmission systems, e.g. inductive or capacitive transmission systems specially adapted for specific purposes
- H04B5/79—Near-field transmission systems, e.g. inductive or capacitive transmission systems specially adapted for specific purposes for data transfer in combination with power transfer
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
- H02J50/10—Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling
- H02J50/12—Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling of the resonant type
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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
-
- 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
Definitions
- the present invention relates to the field of wireless power transmission, and in particular, to a communication signal transmission method and system based on a wireless power transmission system.
- Wireless power transmission is a new technology for transmitting power. It transmits power through electromagnetic induction, electromagnetic coupling resonance, microwave/laser, etc. This technology relieves the dependence on wires and thus becomes more convenient and widely used.
- the communication signal can be transmitted from the wireless power transmission channel, but there is a problem that the single channel bidirectional signal transmission conflicts when communicating using the wireless power transmission channel of the wireless power transmission system.
- An object of the present invention is to provide a communication signal transmission method and system based on a wireless power transmission system for solving single-channel bidirectional signal transmission collisions when communicating using a wireless power transmission channel of a wireless power transmission system.
- a communication signal transmission method based on a wireless power transmission system comprising: information, time information and a synchronization signal of a system control instruction, and the transmitting end and the receiving end set a communication signal transmission of the wireless power transmission system according to the communication direction information in the synchronization signal.
- Receiving state, the synchronization The signal causes the communication signal to communicate in a single direction at the same time;
- the transmitting end receives the synchronization signal
- the transmitting end and the receiving end transmit the communication signal according to the communication direction information in the synchronization signal.
- the system control command included in the synchronization signal refers to the instruction sent by the receiving end, such as: In the power transmission and communication phase, if the transmitting end finds that the receiving end has an abnormality, it enters an abnormal processing stage; if the receiving end needs the transmitting end to stop supplying power Then, the stop command is sent to the transmitting end, and the transmitting end stops the communication and power supply after receiving the stop command, and the system enters the standby state, and enters the ready state after the preset time period to prepare for the next power supply and communication.
- the transmitting end is composed of an AC/DC module, a first controller, a driving circuit, a coil state detecting module, a first modem module, a voltage current detecting module and a transmitting end coil, wherein the two are electrically connected;
- the receiving The terminal is composed of a rectification module, a voltage adjustment module, a second controller, a second modulation and demodulation module, an external load and a receiving end coil, and is electrically connected therebetween; a wireless connection between the transmitting end and the receiving end and transmitting power, transmitting The terminal and the receiving end form a wireless power transmission system, and the receiving end and the metal object are collectively referred to as a power receiving object.
- the coil is wound by a wire, and the shape of the coil can be any shape and arbitrary size, and the transmitting end coil and the receiving end coil transmit power by electromagnetic coupling or magnetic resonance, specifically, the transmitting end coil is connected with energy.
- the transmitting end coil instead of emitting electromagnetic waves outward, it uses an oscillator to generate high-frequency oscillating current, and emits electromagnetic waves outward through the transmitting end coil, forming a non-radiating magnetic field around it, that is, converting electric energy into a magnetic field, when the natural frequency of the receiving end coil When the frequency of the received electromagnetic wave is the same, the oscillating current generated by the receiving end is the strongest, and the conversion of the magnetic field to the electric energy is completed, thereby realizing efficient transmission of electric energy.
- the transmitting end and the receiving end set the communication signal sending and receiving states of the wireless power transmission system according to the communication direction information in the synchronization signal, including:
- the communication direction information is: the transmitting end transmits the communication signal to the receiving end, sets the transmitting end as the communication signal transmitting end according to the communication direction information in the synchronization signal, and sets the receiving end as the communication signal receiving end according to the communication direction information in the synchronization signal,
- the transmitting end superimposes the data to be transmitted through the modulation module of the first modem module, and then transmits the signal to the receiving end through the coupling of the transmitting end coil and the receiving end coil, and the receiving end receives the superimposed signal and passes the signal.
- the demodulation module of the second modem module separates the communication signal, and converts the separated communication signal into data;
- the communication direction information is: the receiving end transmits the communication signal to the transmitting end, sets the receiving end as the communication signal transmitting end according to the communication direction information in the synchronization signal, and sets the transmitting end as the communication signal receiving end according to the communication direction information in the synchronization signal,
- the receiving end superimposes the data to be transmitted through the modulation module of the second modem module, and then transmits the signal to the transmitting end through the coupling of the receiving end coil and the transmitting end coil, and the transmitting end receives the superimposed signal and passes the signal.
- the demodulation module of the first modem module separates the communication signal and converts the separated communication signal into data.
- the process of superimposing the power signal and the communication signal is modulation, and in the communication signal transmission method of the present invention, the transmission of the power signal is always accompanied.
- the transmitting end finds that the receiving end is abnormal, it enters the abnormal processing stage; if the receiving end needs the transmitting end to stop supplying power, it sends a stop command to the transmitting end, and the transmitting end stops the communication and power supply after receiving the stop command.
- the system enters the standby state and enters the ready state after a preset period of time to prepare for the next power supply and communication.
- the power transmission and communication phase further includes an identification configuration phase: after the transmitter of the wireless power transmission system is initialized, when the transmitting end of the wireless power transmission system detects the power receiving object, the wireless power transmission system enters the identification configuration stage, and the transmitting The terminal receives the communication signal from the power receiving object and verifies whether it is a legitimate receiving end. If yes, the transmitting end enters the power transmission and communication phase. If it is not a legal receiving end, the transmitting end sends an alarm that does not support the receiving end, if not When the communication signal is received, it is determined that the power receiving object is a foreign object, and the transmitting end issues a foreign object alarm.
- the time of sending the synchronization signal also includes two system state transition times.
- the time information includes:
- the two synchronization signal transmission time intervals are fixed values, the time information is the fixed value, and the synchronization signal transmits the synchronization signal according to a fixed period;
- the two synchronization signal transmission time intervals are not fixed.
- the first time interval is preset.
- the time interval from the second time starts to change according to the specific time used for the transmission of the last communication signal.
- the transmitting end transmits the communication to the receiving end.
- the time information corresponding to the signal is calculated separately from the time information corresponding to the transmission of the communication signal by the receiving end to the transmitting end, that is, the first time interval at which the transmitting end transmits the communication signal to the receiving end and the first time the transmitting end transmits the communication signal to the transmitting end.
- the time interval is set separately, and may be the same or different.
- the second time interval between the transmitting end transmitting the communication signal to the receiving end and the transmitting end to the receiving end The specific time used for transmitting the first transmission of the communication signal is related.
- the specific time used for the first transmission is less than the preset value of the first time interval, and the second time interval of transmitting the communication signal from the transmitting end to the receiving end is reduced.
- the preset value, and so on; the second time interval at which the receiving end transmits the communication signal to the transmitting end is related to the specific time used by the receiving end to transmit the communication signal to the transmitting end, and the specific time used for the first transmission is small.
- the preset value of the first time interval reduces the preset value of the second time interval at which the receiving end transmits the communication signal to the transmitting end, and so on.
- the transmitting end and the receiving end transmit the communication signal according to the communication direction information in the synchronization signal: the transmitting end and the receiving end set the communication signal sending or receiving state of the wireless power transmission system according to the communication direction information in the synchronization signal, according to The communication direction information is transmitted from the transmitting end to the receiving end or from the receiving end to the transmitting end until the end of the power transmission and communication phase.
- a communication signal transmission system based on a wireless power transmission system comprising: a transmitting end and a receiving end, wherein the working method of the communication signal transmission system is: a synchronization signal of information, time information and system control instructions, and the transmitting end and the receiving end follow
- the communication direction information in the synchronization signal sets a communication signal transmission and reception state of the wireless power transmission system, and the synchronization signal enables the communication signal to communicate only in a single direction at the same time;
- the transmitting end receives the synchronization signal
- the transmitting end and the receiving end transmit the communication signal according to the communication direction information in the synchronization signal.
- the transmitting end is composed of an AC/DC module, a first controller, a driving circuit, a coil state detecting module, a first modem module, a voltage current detecting module and a transmitting end coil, wherein the two are electrically connected;
- the receiving The terminal is composed of a rectification module, a voltage adjustment module, a second controller, a second modulation and demodulation module, an external load and a receiving end coil, and is electrically connected therebetween; a wireless connection between the transmitting end and the receiving end and transmitting power, transmitting The terminal and the receiving end form a wireless power transmission system, and the receiving end and the metal object are collectively referred to as a power receiving object.
- the coil is wound by a wire, and the shape of the coil can be any shape and arbitrary size, and the transmitting end coil and the receiving end coil transmit power by electromagnetic coupling or magnetic resonance, specifically, the transmitting end coil is connected with energy.
- the transmitting end coil instead of emitting electromagnetic waves outward, it uses an oscillator to generate high-frequency oscillating current, and emits electromagnetic waves outward through the transmitting-end coil to form a non-radiative magnetic field around it. The electric energy is converted into a magnetic field.
- the natural frequency of the receiving end coil is the same as the received electromagnetic wave frequency, the oscillating current generated by the receiving end is the strongest, and the conversion of the magnetic field to the electric energy is completed, thereby realizing efficient transmission of electric energy.
- the transmitting end and the receiving end set the communication signal sending and receiving states of the wireless power transmission system according to the communication direction information in the synchronization signal, including:
- the communication direction information is: the transmitting end transmits the communication signal to the receiving end, sets the transmitting end as the communication signal transmitting end according to the communication direction information in the synchronization signal, and sets the receiving end as the communication signal receiving end according to the communication direction information in the synchronization signal,
- the transmitting end superimposes the data to be transmitted through the modulation module of the first modem module, and then transmits the signal to the receiving end through the coupling of the transmitting end coil and the receiving end coil, and the receiving end receives the superimposed signal and passes the signal.
- the demodulation module of the second modem module separates the communication signal, and converts the separated communication signal into data;
- the communication direction information is: the receiving end transmits the communication signal to the transmitting end, sets the receiving end as the communication signal transmitting end according to the communication direction information in the synchronization signal, and sets the transmitting end as the communication signal receiving end according to the communication direction information in the synchronization signal,
- the receiving end superimposes the data to be transmitted through the modulation module of the second modem module, and then transmits the signal to the transmitting end through the coupling of the receiving end coil and the transmitting end coil, and the transmitting end receives the superimposed signal and passes the signal.
- the demodulation module of the first modem module separates the communication signal and converts the separated communication signal into data.
- the process of superimposing the power signal and the communication signal is modulation, and in the communication signal transmission method of the present invention, the transmission of the power signal is always accompanied.
- the transmitting end finds that the receiving end is abnormal, it enters the abnormal processing stage; if the receiving end needs the transmitting end to stop supplying power, it sends a stop command to the transmitting end, and the transmitting end stops the communication and power supply after receiving the stop command.
- the system enters the standby state and enters the ready state after a preset period of time to prepare for the next power supply and communication.
- the power transmission and communication phase further includes an identification configuration phase: after the transmitter of the wireless power transmission system is initialized, when the transmitting end of the wireless power transmission system detects the power receiving object, the wireless power transmission system enters the identification configuration stage, and the transmitting The terminal receives the communication signal from the power receiving object and verifies whether it is a legitimate receiving end. If yes, the transmitting end enters the power transmission and communication phase. If it is not a legal receiving end, the transmitting end sends an alarm that does not support the receiving end, if not When the communication signal is received, it is determined that the power receiving object is a foreign object, and the transmitting end issues a foreign object alarm.
- the time of sending the synchronization signal also includes two system state transition times. Among them, the time information includes:
- the two synchronization signal transmission time intervals are fixed values, and the time information is the fixed value
- the two synchronization signal transmission time intervals are not fixed.
- the first time interval is preset.
- the time interval from the second time starts to change according to the specific time used for the transmission of the last communication signal.
- the transmitting end transmits the communication to the receiving end.
- the time information corresponding to the signal is calculated separately from the time information corresponding to the transmission of the communication signal by the receiving end to the transmitting end, that is, the first time interval at which the transmitting end transmits the communication signal to the receiving end and the first time the transmitting end transmits the communication signal to the transmitting end.
- the time interval is set separately, and may be the same or different.
- the second time interval at which the transmitting end transmits the communication signal to the receiving end is related to the specific time used by the transmitting end to transmit the communication signal to the receiving end for the first time.
- the specific time used for one transmission is less than the preset value of the first time interval, and the preset value of the second time interval for transmitting the communication signal to the receiving end by the transmitting end is reduced, and so on; the receiving end transmits the communication signal to the transmitting end.
- the second time interval is used for the first transmission of the communication signal transmitted by the receiving end to the transmitting end. For the specific time, the first time the specific transmission time with the first time interval is less than the predetermined value, the preset value is decreased to the second terminal receiving end of the transmission time for transmitting the communication signal interval, and so on.
- the transmitting end and the receiving end transmit the communication signal according to the communication direction information in the synchronization signal: the transmitting end and the receiving end set the communication signal sending or receiving state of the wireless power transmission system according to the communication direction information in the synchronization signal, according to The communication direction information is transmitted from the transmitting end to the receiving end or from the receiving end to the transmitting end until the end of the power transmission and communication phase.
- the invention has the following advantages:
- the communication signal transmission method and system based on the wireless power transmission system comprises: a power transmission and communication phase, the receiving end periodically sends the communication direction information, the time information and the information in the current period to the transmitting end.
- the synchronization signal of the system control command, the transmitting end and the receiving end set the communication signal sending and receiving states of the wireless power transmission system according to the communication direction information in the synchronization signal, and the synchronization signal enables the communication signal to communicate only in a single direction at the same time;
- Receiving a synchronization signal; the transmitting end and the receiving end transmit the communication signal according to the communication direction information in the synchronization signal.
- the invention makes the communication signal only communicate in a single direction at the same time by the communication direction information and the system control instruction included in the synchronization signal, thereby solving the conflict problem in the single channel bidirectional signal transmission process, improving the transmission efficiency and system stability. , also reached the power and communication synchronization wireless The effect of the transmission.
- Figure 1 is a schematic view of the method of the present invention
- FIG. 2 is a structural diagram of a wireless power transmission system of the present invention.
- a technical method for transmitting a communication signal based on a wireless power transmission system including: synchronization information of information, time information, and system control instructions, and transmission, will be further described below with reference to FIGS. 1-2 and through specific embodiments.
- the terminal and the receiving end set the communication signal sending and receiving states of the wireless power transmission system according to the communication direction information in the synchronization signal, and the synchronization signal enables the communication signal to communicate only in a single direction at the same time;
- the transmitting end receives the synchronization signal
- the transmitting end and the receiving end transmit the communication signal according to the communication direction information in the synchronization signal.
- the receiving end first sends a synchronization signal to the transmitting end, and the synchronization signal transmits the communication signal to the transmitting end to the transmitting end during the current period.
- the communication signal is transmitted from the receiving end to the transmitting end, until the end of the cycle time, the receiving end sends a synchronization signal to the transmitting end, and the synchronization signal transmits the direction information in the current period, for example, the transmitting end direction.
- the receiving end transmits the communication signal.
- the communication signal is transmitted from the transmitting end to the receiving end until the end of the cycle time, so that the communication signal is transmitted according to the synchronization signal until the power transmission and communication phase ends.
- the synchronization signal further includes a system control instruction, where the instruction refers to an instruction sent by the receiving end, for example: in the power transmission and communication phase, if the transmitting end finds that the receiving end has an abnormality, it enters an abnormal processing stage; If the receiving end needs the transmitting end to stop supplying power, it sends a stop command to the transmitting end. After receiving the stop command, the transmitting end stops communication and power supply, the system enters the standby state, enters the ready state after the preset time period, prepares for the next power supply and communication.
- the instruction refers to an instruction sent by the receiving end, for example: in the power transmission and communication phase, if the transmitting end finds that the receiving end has an abnormality, it enters an abnormal processing stage; If the receiving end needs the transmitting end to stop supplying power, it sends a stop command to the transmitting end. After receiving the stop command, the transmitting end stops communication and power supply, the system enters the standby state, enters the ready state after the preset time period, prepares
- the transmitting end is composed of an AC/DC module, a first controller, a driving circuit, a coil state detecting module, a first modem module, a voltage current detecting module, and a transmitting end coil, and the electrical connection between them is
- the receiving end is composed of a rectifying module, a voltage adjusting module, a second controller, a second modem module, an external load and a receiving end coil, and the two are electrically connected; the transmitting end and the receiving end are wirelessly connected and Transmission power, the transmitting end and the receiving end form a wireless power transmission system, and the receiving end and the metal object are collectively referred to as a power receiving object.
- Figure 2 shows the structure of the wireless power transmission system.
- the coil is wound by a wire, and the shape of the coil can be any shape and any size.
- the transmitting end coil and the receiving end coil transmit power by electromagnetic coupling or magnetic resonance, specifically, the transmitting end.
- the coil is connected to the energy. It does not emit electromagnetic waves outward. Instead, it uses an oscillator to generate a high-frequency oscillating current.
- the transmitting coil emits an electromagnetic wave outward, forming a non-radiative magnetic field around it, which converts the electric energy into a magnetic field.
- the natural frequency of the coil is the same as the frequency of the received electromagnetic wave, the oscillating current generated at the receiving end is the strongest, and the conversion of the magnetic field to the electric energy is completed, thereby realizing efficient transmission of electric energy.
- the transmitting end and the receiving end set the communication signal sending and receiving states of the wireless power transmission system according to the communication direction information in the synchronization signal, including:
- the communication direction information is: the transmitting end transmits the communication signal to the receiving end, sets the transmitting end as the communication signal transmitting end according to the communication direction information in the synchronization signal, and sets the receiving end as the communication signal receiving end according to the communication direction information in the synchronization signal,
- the transmitting end superimposes the data to be transmitted through the modulation module of the first modem module, and then transmits the signal to the receiving end through the coupling of the transmitting end coil and the receiving end coil, and the receiving end receives the superimposed signal and passes the signal.
- the demodulation module of the second modem module separates the communication signal, and converts the separated communication signal into data;
- the communication direction information is: the receiving end transmits the communication signal to the transmitting end, sets the receiving end as the communication signal transmitting end according to the communication direction information in the synchronization signal, and sets the transmitting end as the communication signal receiving end according to the communication direction information in the synchronization signal,
- the receiving end superimposes the data to be transmitted through the modulation module of the second modem module, and then transmits the signal to the transmitting end through the coupling of the receiving end coil and the transmitting end coil, and the transmitting end receives the superimposed signal and passes the signal.
- the demodulation module of the first modem module separates the communication signal and converts the separated communication signal into data.
- the process of superimposing the power signal and the communication signal is modulation, and in the communication signal transmission method of the present invention, the transmission of the power signal is always accompanied.
- the power transmission and communication phase further includes an identification configuration phase: after the transmitter of the wireless power transmission system is initialized, when the transmitting end of the wireless power transmission system detects the power receiving object, the wireless power transmission system enters the identification.
- the transmitting end receives the communication signal from the power receiving object and verifies whether it is a legal receiving end. If yes, the transmitting end enters the power transmission and communication phase. If it is not a legal receiving end, the transmitting end sends out the receiving end.
- Alarm if the communication signal is not received, it is determined that the power receiving object is a foreign object, and the transmitting end issues a foreign object alarm.
- the time information includes:
- the two synchronization signal transmission time intervals are fixed values, and the time information is the fixed value
- the two synchronization signal transmission time intervals are not fixed.
- the first time interval is preset.
- the time interval from the second time starts to change according to the specific time used for the transmission of the last communication signal.
- the transmitting end transmits the communication to the receiving end.
- the time information corresponding to the signal is calculated separately from the time information corresponding to the transmission of the communication signal by the receiving end to the transmitting end, that is, the first time interval at which the transmitting end transmits the communication signal to the receiving end and the first time the transmitting end transmits the communication signal to the transmitting end.
- the time interval is set separately, and may be the same or different.
- the second time interval at which the transmitting end transmits the communication signal to the receiving end is related to the specific time used by the transmitting end to transmit the communication signal to the receiving end for the first time.
- the specific time used for one transmission is less than the preset value of the first time interval, and the preset value of the second time interval for transmitting the communication signal to the receiving end by the transmitting end is reduced, and so on; the receiving end transmits the communication signal to the transmitting end.
- the second time interval is used for the first transmission of the communication signal transmitted by the receiving end to the transmitting end. For the specific time, the first time the specific transmission time with the first time interval is less than the predetermined value, the preset value is decreased to the second terminal receiving end of the transmission time for transmitting the communication signal interval, and so on.
- the transmitting end and the receiving end transmit the communication signal according to the communication direction information in the synchronization signal, specifically: the transmitting end and the receiving end set the communication signal transmission of the wireless power transmission system according to the communication direction information in the synchronization signal or
- the receiving state transmits the communication signal from the transmitting end to the receiving end or from the receiving end to the transmitting end according to the communication direction information until the power transmission and communication phase ends.
- a communication signal transmission system based on a wireless power transmission system comprising: a transmitting end and a receiving end, wherein the working method of the communication signal transmission system is: a synchronization signal of information, time information and system control instructions, and the transmitting end and the receiving end follow
- the communication direction information in the synchronization signal sets a communication signal transmission and reception state of the wireless power transmission system, and the synchronization signal enables the communication signal to communicate only in a single direction at the same time;
- the transmitting end receives the synchronization signal
- the transmitting end and the receiving end transmit the communication signal according to the communication direction information in the synchronization signal.
- the transmitting end is composed of an AC/DC module, a first controller, a driving circuit, a coil state detecting module, a first modem module, a voltage current detecting module, and a transmitting end coil, and the electrical connection between them is
- the receiving end is composed of a rectifying module, a voltage adjusting module, a second controller, a second modem module, an external load and a receiving end coil, and the two are electrically connected; the transmitting end and the receiving end are wirelessly connected and Transmission power, the receiving end and the metal object are collectively referred to as the power receiving object.
- the coil is wound by a wire, and the shape of the coil can be any shape and any size.
- the transmitting end coil and the receiving end coil transmit power by electromagnetic coupling or magnetic resonance, specifically, the transmitting end.
- the coil is connected to the energy. It does not emit electromagnetic waves outward. Instead, it uses an oscillator to generate a high-frequency oscillating current.
- the transmitting coil emits an electromagnetic wave outward, forming a non-radiative magnetic field around it, which converts the electric energy into a magnetic field.
- the natural frequency of the coil is the same as the frequency of the received electromagnetic wave, the oscillating current generated at the receiving end is the strongest, and the conversion of the magnetic field to the electric energy is completed, thereby realizing efficient transmission of electric energy.
- the transmitting end and the receiving end set the communication signal sending and receiving states of the wireless power transmission system according to the communication direction information in the synchronization signal, including:
- the communication direction information is: the transmitting end transmits the communication signal to the receiving end, sets the transmitting end as the communication signal transmitting end according to the communication direction information in the synchronization signal, and sets the receiving end as the communication signal receiving end according to the communication direction information in the synchronization signal,
- the transmitting end superimposes the data to be transmitted through the modulation module of the first modem module, and then transmits the signal to the receiving end through the coupling of the transmitting end coil and the receiving end coil, and the receiving end receives the superimposed signal and passes the signal.
- the demodulation module of the second modem module separates the communication signal, and converts the separated communication signal into data;
- the communication direction information is: the receiving end transmits the communication signal to the transmitting end, sets the receiving end as the communication signal transmitting end according to the communication direction information in the synchronization signal, and sets the transmitting end as the communication signal receiving end according to the communication direction information in the synchronization signal,
- the receiving end superimposes the data to be transmitted through the modulation module of the second modem module, and then transmits the signal to the transmitting end through the coupling of the receiving end coil and the transmitting end coil, and the transmitting end receives the superimposed signal and passes the signal.
- the demodulation module of the first modem module separates the communication signal and converts the separated communication signal into data.
- the process of superimposing the power signal and the communication signal is modulation, and in the communication signal transmission method of the present invention, the transmission of the power signal is always accompanied.
- the transmitting end finds that the receiving end is abnormal, it enters the abnormal processing stage; if the receiving end needs the transmitting end to stop supplying power, it sends a stop command to the transmitting end, and the transmitting end stops the communication and power supply after receiving the stop command.
- the system enters the standby state and enters the ready state after a preset period of time to prepare for the next power supply and communication.
- the power transmission and communication phase further includes an identification configuration phase: after the transmitter of the wireless power transmission system is initialized, when the transmitting end of the wireless power transmission system detects the power receiving object, the wireless power transmission system enters the identification.
- the transmitting end receives the communication signal from the power receiving object and verifies whether it is a legal receiving end. If yes, the transmitting end enters the power transmission and communication phase. If it is not a legal receiving end, the transmitting end sends out the receiving end.
- Alarm if the communication signal is not received, it is determined that the power receiving object is a foreign object, and the transmitting end issues a foreign object alarm.
- the time information includes:
- the two synchronization signal transmission time intervals are fixed values, and the time information is the fixed value
- the two synchronization signal transmission time intervals are not fixed.
- the first time interval is preset.
- the time interval from the second time starts to change according to the specific time used for the transmission of the last communication signal.
- the transmitting end transmits the communication to the receiving end.
- the time information corresponding to the signal is calculated separately from the time information corresponding to the transmission of the communication signal by the receiving end to the transmitting end.
- the transmitting end and the receiving end transmit the communication signal according to the communication direction information in the synchronization signal, specifically: the transmitting end and the receiving end set the communication signal transmission of the wireless power transmission system according to the communication direction information in the synchronization signal or Receiving status, according to the communication direction information from the transmitting end to The transmission of the communication signal from the receiving end or from the receiving end to the transmitting end until the end of the power transmission and communication phase.
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- Near-Field Transmission Systems (AREA)
Abstract
一种基于无线电力传输系统的通讯信号传输方法和系统，该方法包括：接收端周期性向发射端发送包含本周期内通讯方向信息和时间信息的同步信号，发射端和接收端按照同步信号中的通讯方向信息设置无线电力传输系统的通讯信号发送和接收状态，同步信号使通讯信号在同一时刻只有单一方向通讯；发射端接收到同步信号；发射端和接收端按照同步信号中的通讯方向信息进行通讯信号的传输。该通讯信号传输方法和系统通过同步信号中包含的本周期内通讯信息使得通讯信号在同一时刻只有单一方向通讯，解决了单通道双向信号传输过程中的冲突问题，提高了通讯信号传输效率及系统稳定性，同时也达到了电力与通讯同步无线传输的效果。
Description
基于无线电力传输系统的通讯信号传输方法和系统 本专利申请要求于 2013年 04月 28日提交的， 申请号为 201310157225.3 , 申请人为海尔集团技术研发中心、 海尔集团公司， 发明名称为 "基于无线电力 传输系统的通讯信号传输方法和系统" 的中国专利申请的优先权， 该申请的全 文以引用的方式并入本申请中。
技术领域
本发明涉及无线电力传输领域， 尤其涉及一种基于无线电力传输系统的通 讯信号传输方法和系统。
背景技术
无线电力传输是一种传输电力的新技术， 它将电力通过电磁感应、 电磁耦 合共振、 微波 /激光等方式进行传输， 这种技术解除了对于导线的依赖， 从而得 到更加方便和广阔的应用， 在无线电力传输过程中， 通讯信号可以从无线电力 传输通道中进行传输， 但却存在着在利用无线电力传输系统的无线电力传输通 道进行通讯时单通道双向信号传输冲突的问题。
发明内容
本发明的目的在于提出解决在利用无线电力传输系统的无线电力传输通道 进行通讯时单通道双向信号传输冲突的一种基于无线电力传输系统的通讯信号 传输方法和系统。
为达此目的， 本发明采用以下技术方案：
一种基于无线电力传输系统的通讯信号传输方法， 包括： 信息、 时间信息和系统控制指令的同步信号， 发射端和接收端按照同步信号中 的通讯方向信息设置无线电力传输系统的通讯信号发送和接收状态， 所述同步
信号使通讯信号在同一时刻只有单一方向通讯；
发射端接收到同步信号；
发射端和接收端按照同步信号中的通讯方向信息进行通讯信号的传输。 其中同步信号中包含的系统控制指令指的是接收端发出的指令， 如： 在电 力传输和通讯阶段， 若发射端发现接收端有异常， 则进入异常处理阶段； 若接 收端需要发射端停止供电， 则向发射端发送停止指令， 发射端收到停止指令后 停止通讯和供电， 系统进入待机状态， 在预设的时间段之后进入就绪状态， 准 备下一次供电和通讯。
其中， 发射端由 AC/DC模块、 第一控制器、 驱动电路、 线圈状态探测模块、 第一调制解调模块、 电压电流检测模块和发射端线圈组成， 它们之间为电连接； 所述接收端由整流模块、 电压调整模块、 第二控制器、 第二调制解调模块、 外 部负载和接收端线圈组成， 它们之间为电连接； 发射端和接收端之间无线连接 并传输电力， 发射端和接收端组成无线电力传输系统， 接收端和金属物体统称 为电能接收物体。
其中， 线圈由导线绕制而成， 线圈的形状可谓任意的某种形状和任意尺寸， 发射端线圈和接收端线圈通过电磁耦合或者磁共振方式传输电力， 具体来说， 发射端线圈与能量相连， 它并不向外发射电磁波， 而是利用振荡器产生高频振 荡电流， 通过发射端线圈向外发射电磁波， 在周围形成一个非辐射磁场， 即将 电能转化为磁场， 当接收端线圈的固有频率与收到的电磁波频率相同时， 接收 端产生的振荡电流最强， 完成磁场到电能的转换， 从而实现电能的高效传输。
其中， 发射端和接收端按照同步信号中的通讯方向信息设置无线电力传输 系统的通讯信号发送和接收状态包括：
通讯方向信息为： 发射端向接收端传输通讯信号， 按照同步信号中的通讯 方向信息将发射端设置为通讯信号发送端， 按照同步信号中的通讯方向信息将 接收端设置为通讯信号接收端， 发射端将待发送数据通过第一调制解调模块的 调制模块将通讯信号和电力信号叠加后， 通过发射端线圈和接收端线圈的耦合 传输到接收端， 接收端接收到叠加后的信号后通过第二调制解调模块的解调模 块分离出通讯信号， 并将分离出的通讯信号转换为数据；
通讯方向信息为： 接收端向发射端传输通讯信号， 按照同步信号中的通讯 方向信息将接收端设置为通讯信号发送端， 按照同步信号中的通讯方向信息将 发射端设置为通讯信号接收端， 接收端将待发送数据通过第二调制解调模块的 调制模块将通讯信号和电力信号叠加后， 通过接收端线圈和发射端线圈的耦合 传输到发射端， 发射端接收到叠加后的信号后通过第一调制解调模块的解调模 块分离出通讯信号， 并将分离出的通讯信号转换为数据。
其中， 电力信号与通讯信号叠加的过程即为调制， 在本发明的通讯信号传 输方法中， 始终伴随着电力信号的传输。
在电力传输和通讯阶段， 若发射端发现接收端有异常， 则进入异常处理阶 段； 若接收端需要发射端停止供电， 则向发射端发送停止指令， 发射端收到停 止指令后停止通讯和供电， 系统进入待机状态， 在预设的时间段之后进入就绪 状态， 准备下一次供电和通讯。
其中， 电力传输和通讯阶段之前还包括识别配置阶段： 无线电力传输系统 的发射端初始化完成后， 当无线电力传输系统的发射端探测到电能接收物体， 则无线电力传输系统进入识别配置阶段， 发射端接收到来自电能接收物体的通 讯信号并验证是否为合法的接收端， 若是， 则发射端进入电力传输和通讯阶段， 若不是合法的接收端， 则发射端发出不支持接收端报警， 若未收到通讯信号， 则断定电能接收物体为异物， 发射端发出异物报警。
其中， 发送同步信号的时间前后还包括两个系统状态转换时间。
其中， 时间信息包括：
两个同步信号发送时间间隔为固定值， 时间信息为该固定值， 同步信号按 照固定的周期进行同步信号的传输；
两个同步信号发送时间间隔不固定， 第一次时间间隔预先设定， 从第二次 开始后的时间间隔根据其上一次通讯信号传输所用的具体时间而变化， 其中发 射端向接收端传输通讯信号所对应的时间信息与接收端向发射端传输通讯信号 所对应的时间信息分别计算， 也即发射端向接收端传输通讯信号的第一次时间 间隔与接收端向发射端传输通讯信号的第一次时间间隔分别设定， 可相同， 也 可以不同， 发射端向接收端传输通讯信号的第二次时间间隔与发射端向接收端
传输通讯信号的第一次传输所用的具体时间有关， 第一次传输所用的具体时间 少于第一次时间间隔预设值， 则减少发射端向接收端传输通讯信号的第二次时 间间隔的预设值， 依次类推； 接收端向发射端传输通讯信号的第二次时间间隔 与接收端向发射端传输通讯信号的第一次传输所用的具体时间有关， 第一次传 输所用的具体时间少于第一次时间间隔预设值， 则减少接收端向发射端传输通 讯信号的第二次时间间隔的预设值， 依次类推。
其中， 发射端和接收端按照同步信号中的通讯方向信息进行通讯信号的传 输具体为： 发射端和接收端按照同步信号中的通讯方向信息设置无线电力传输 系统的通讯信号发送或接收状态， 根据通讯方向信息进行从发射端到接收端或 者从接收端到发射端的通讯信号的传输， 直到电力传输和通讯阶段时间结束。
一种基于无线电力传输系统的通讯信号传输系统， 包括： 发射端和接收端， 所述通讯信号传输系统的工作方法为： 信息、 时间信息和系统控制指令的同步信号， 发射端和接收端按照同步信号中 的通讯方向信息设置无线电力传输系统的通讯信号发送和接收状态， 所述同步 信号使通讯信号在同一时刻只有单一方向通讯；
发射端接收到同步信号；
发射端和接收端按照同步信号中的通讯方向信息进行通讯信号的传输。 其中， 发射端由 AC/DC模块、 第一控制器、 驱动电路、 线圈状态探测模块、 第一调制解调模块、 电压电流检测模块和发射端线圈组成， 它们之间为电连接； 所述接收端由整流模块、 电压调整模块、 第二控制器、 第二调制解调模块、 外 部负载和接收端线圈组成， 它们之间为电连接； 发射端和接收端之间无线连接 并传输电力， 发射端和接收端组成无线电力传输系统， 接收端和金属物体统称 为电能接收物体。
其中， 线圈由导线绕制而成， 线圈的形状可谓任意的某种形状和任意尺寸， 发射端线圈和接收端线圈通过电磁耦合或者磁共振方式传输电力， 具体来说， 发射端线圈与能量相连， 它并不向外发射电磁波， 而是利用振荡器产生高频振 荡电流， 通过发射端线圈向外发射电磁波， 在周围形成一个非辐射磁场， 即将
电能转化为磁场， 当接收端线圈的固有频率与收到的电磁波频率相同时， 接收 端产生的振荡电流最强， 完成磁场到电能的转换， 从而实现电能的高效传输。
其中， 发射端和接收端按照同步信号中的通讯方向信息设置无线电力传输 系统的通讯信号发送和接收状态包括：
通讯方向信息为： 发射端向接收端传输通讯信号， 按照同步信号中的通讯 方向信息将发射端设置为通讯信号发送端， 按照同步信号中的通讯方向信息将 接收端设置为通讯信号接收端， 发射端将待发送数据通过第一调制解调模块的 调制模块将通讯信号和电力信号叠加后， 通过发射端线圈和接收端线圈的耦合 传输到接收端， 接收端接收到叠加后的信号后通过第二调制解调模块的解调模 块分离出通讯信号， 并将分离出的通讯信号转换为数据；
通讯方向信息为： 接收端向发射端传输通讯信号， 按照同步信号中的通讯 方向信息将接收端设置为通讯信号发送端， 按照同步信号中的通讯方向信息将 发射端设置为通讯信号接收端， 接收端将待发送数据通过第二调制解调模块的 调制模块将通讯信号和电力信号叠加后， 通过接收端线圈和发射端线圈的耦合 传输到发射端， 发射端接收到叠加后的信号后通过第一调制解调模块的解调模 块分离出通讯信号， 并将分离出的通讯信号转换为数据。
其中， 电力信号与通讯信号叠加的过程即为调制， 在本发明的通讯信号传 输方法中， 始终伴随着电力信号的传输。
在电力传输和通讯阶段， 若发射端发现接收端有异常， 则进入异常处理阶 段； 若接收端需要发射端停止供电， 则向发射端发送停止指令， 发射端收到停 止指令后停止通讯和供电， 系统进入待机状态， 在预设的时间段之后进入就绪 状态， 准备下一次供电和通讯。
其中， 电力传输和通讯阶段之前还包括识别配置阶段： 无线电力传输系统 的发射端初始化完成后， 当无线电力传输系统的发射端探测到电能接收物体， 则无线电力传输系统进入识别配置阶段， 发射端接收到来自电能接收物体的通 讯信号并验证是否为合法的接收端， 若是， 则发射端进入电力传输和通讯阶段， 若不是合法的接收端， 则发射端发出不支持接收端报警， 若未收到通讯信号， 则断定电能接收物体为异物， 发射端发出异物报警。
其中， 发送同步信号的时间前后还包括两个系统状态转换时间。 其中， 时间信息包括：
两个同步信号发送时间间隔为固定值， 时间信息为该固定值；
两个同步信号发送时间间隔不固定， 第一次时间间隔预先设定， 从第二次 开始后的时间间隔根据其上一次通讯信号传输所用的具体时间而变化， 其中发 射端向接收端传输通讯信号所对应的时间信息与接收端向发射端传输通讯信号 所对应的时间信息分别计算， 也即发射端向接收端传输通讯信号的第一次时间 间隔与接收端向发射端传输通讯信号的第一次时间间隔分别设定， 可相同， 也 可以不同， 发射端向接收端传输通讯信号的第二次时间间隔与发射端向接收端 传输通讯信号的第一次传输所用的具体时间有关， 第一次传输所用的具体时间 少于第一次时间间隔预设值， 则减少发射端向接收端传输通讯信号的第二次时 间间隔的预设值， 依次类推； 接收端向发射端传输通讯信号的第二次时间间隔 与接收端向发射端传输通讯信号的第一次传输所用的具体时间有关， 第一次传 输所用的具体时间少于第一次时间间隔预设值， 则减少接收端向发射端传输通 讯信号的第二次时间间隔的预设值， 依次类推。
其中， 发射端和接收端按照同步信号中的通讯方向信息进行通讯信号的传 输具体为： 发射端和接收端按照同步信号中的通讯方向信息设置无线电力传输 系统的通讯信号发送或接收状态， 根据通讯方向信息进行从发射端到接收端或 者从接收端到发射端的通讯信号的传输， 直到电力传输和通讯阶段时间结束。
本发明的有益效果为： 一种基于无线电力传输系统的通讯信号传输方法和 系统， 该方法包括： 电力传输和通讯阶段， 接收端周期性向发射端发送包含本 周期内通讯方向信息、 时间信息和系统控制指令的同步信号， 发射端和接收端 按照同步信号中的通讯方向信息设置无线电力传输系统的通讯信号发送和接收 状态， 所述同步信号使通讯信号在同一时刻只有单一方向通讯； 发射端接收到 同步信号； 发射端和接收端按照同步信号中的通讯方向信息进行通讯信号的传 输。 本发明通过同步信号中包含的本周期内通讯方向信息和系统控制指令使得 通讯信号在同一时刻只有单一方向通讯， 解决了单通道双向信号传输过程中的 冲突问题， 提高了传输效率及系统稳定性， 同时也达到了电力与通讯同步无线
传输的效果。
附图说明
图 1是本发明方法示意图；
图 2是本发明无线电力传输系统结构图。
具体实施方式
下面将结合图 1-图 2并通过具体实施方式来进一步说明本发明的技术方棠 一种基于无线电力传输系统的通讯信号传输方法， 包括： 信息、 时间信息和系统控制指令的同步信号， 发射端和接收端按照同步信号中 的通讯方向信息设置无线电力传输系统的通讯信号发送和接收状态， 所述同步 信号使通讯信号在同一时刻只有单一方向通讯；
发射端接收到同步信号；
发射端和接收端按照同步信号中的通讯方向信息进行通讯信号的传输。 在本实施例中， 如图 1 所示， 在电力传输和通讯阶段， 接收端首先发送一 个同步信号给发射端， 该同步信号在本周期内通讯方向信息为接收端向发射端 传输通讯信号， 当同步信号传输完成后， 通讯信号从接收端向发射端传输， 直 到本周期时间结束， 接收端再发送一个同步信号给发射端， 该同步信号在本周 期内通讯方向信息， 比如为发射端向接收端传输通讯信号， 当该同步信号传输 完成后， 通讯信号从发射端向接收端传输， 直到本周期时间结束， 如此根据同 步信号进行通讯信号的传输， 直至电力传输和通讯阶段结束。
在本实施例中， 同步信号中还包含系统控制指令， 该指令指的是接收端发 出的指令， 如： 在电力传输和通讯阶段， 若发射端发现接收端有异常， 则进入 异常处理阶段； 若接收端需要发射端停止供电， 则向发射端发送停止指令， 发 射端收到停止指令后停止通讯和供电， 系统进入待机状态， 在预设的时间段之 后进入就绪状态， 准备下一次供电和通讯。
在本实施例中， 发射端由 AC/DC模块、 第一控制器、 驱动电路、 线圈状态 探测模块、 第一调制解调模块、 电压电流检测模块和发射端线圈组成， 它们之 间为电连接； 所述接收端由整流模块、 电压调整模块、 第二控制器、 第二调制 解调模块、 外部负载和接收端线圈组成， 它们之间为电连接； 发射端和接收端 之间无线连接并传输电力， 发射端和接收端组成无线电力传输系统， 接收端和 金属物体统称为电能接收物体。
图 2即为无线电力传输系统结构图。
在本实施例中， 线圈由导线绕制而成， 线圈的形状可谓任意的某种形状和 任意尺寸， 发射端线圈和接收端线圈通过电磁耦合或者磁共振方式传输电力， 具体来说， 发射端线圈与能量相连， 它并不向外发射电磁波， 而是利用振荡器 产生高频振荡电流， 通过发射端线圈向外发射电磁波， 在周围形成一个非辐射 磁场， 即将电能转化为磁场， 当接收端线圈的固有频率与收到的电磁波频率相 同时， 接收端产生的振荡电流最强， 完成磁场到电能的转换， 从而实现电能的 高效传输。
在本实施例中， 发射端和接收端按照同步信号中的通讯方向信息设置无线 电力传输系统的通讯信号发送和接收状态包括：
通讯方向信息为： 发射端向接收端传输通讯信号， 按照同步信号中的通讯 方向信息将发射端设置为通讯信号发送端， 按照同步信号中的通讯方向信息将 接收端设置为通讯信号接收端， 发射端将待发送数据通过第一调制解调模块的 调制模块将通讯信号和电力信号叠加后， 通过发射端线圈和接收端线圈的耦合 传输到接收端， 接收端接收到叠加后的信号后通过第二调制解调模块的解调模 块分离出通讯信号， 并将分离出的通讯信号转换为数据；
通讯方向信息为： 接收端向发射端传输通讯信号， 按照同步信号中的通讯 方向信息将接收端设置为通讯信号发送端， 按照同步信号中的通讯方向信息将 发射端设置为通讯信号接收端， 接收端将待发送数据通过第二调制解调模块的 调制模块将通讯信号和电力信号叠加后， 通过接收端线圈和发射端线圈的耦合 传输到发射端， 发射端接收到叠加后的信号后通过第一调制解调模块的解调模 块分离出通讯信号， 并将分离出的通讯信号转换为数据。
在本实施例中， 电力信号与通讯信号叠加的过程即为调制， 在本发明的通 讯信号传输方法中， 始终伴随着电力信号的传输。
在本实施例中， 电力传输和通讯阶段之前还包括识别配置阶段： 无线电力 传输系统的发射端初始化完成后， 当无线电力传输系统的发射端探测到电能接 收物体， 则无线电力传输系统进入识别配置阶段， 发射端接收到来自电能接收 物体的通讯信号并验证是否为合法的接收端， 若是， 则发射端进入电力传输和 通讯阶段， 若不是合法的接收端， 则发射端发出不支持接收端报警， 若未收到 通讯信号， 则断定电能接收物体为异物， 发射端发出异物报警。
在本实施例中， 发送同步信号的时间前后还包括两个系统状态转换时间。 在本实施例中， 时间信息包括：
两个同步信号发送时间间隔为固定值， 时间信息为该固定值；
两个同步信号发送时间间隔不固定， 第一次时间间隔预先设定， 从第二次 开始后的时间间隔根据其上一次通讯信号传输所用的具体时间而变化， 其中发 射端向接收端传输通讯信号所对应的时间信息与接收端向发射端传输通讯信号 所对应的时间信息分别计算， 也即发射端向接收端传输通讯信号的第一次时间 间隔与接收端向发射端传输通讯信号的第一次时间间隔分别设定， 可相同， 也 可以不同， 发射端向接收端传输通讯信号的第二次时间间隔与发射端向接收端 传输通讯信号的第一次传输所用的具体时间有关， 第一次传输所用的具体时间 少于第一次时间间隔预设值， 则减少发射端向接收端传输通讯信号的第二次时 间间隔的预设值， 依次类推； 接收端向发射端传输通讯信号的第二次时间间隔 与接收端向发射端传输通讯信号的第一次传输所用的具体时间有关， 第一次传 输所用的具体时间少于第一次时间间隔预设值， 则减少接收端向发射端传输通 讯信号的第二次时间间隔的预设值， 依次类推。
在本实施例中， 发射端和接收端按照同步信号中的通讯方向信息进行通讯 信号的传输具体为： 发射端和接收端按照同步信号中的通讯方向信息设置无线 电力传输系统的通讯信号发送或接收状态， 根据通讯方向信息进行从发射端到 接收端或者从接收端到发射端的通讯信号的传输， 直到电力传输和通讯阶段时 间结束。
一种基于无线电力传输系统的通讯信号传输系统， 包括： 发射端和接收端， 所述通讯信号传输系统的工作方法为： 信息、 时间信息和系统控制指令的同步信号， 发射端和接收端按照同步信号中 的通讯方向信息设置无线电力传输系统的通讯信号发送和接收状态， 所述同步 信号使通讯信号在同一时刻只有单一方向通讯；
发射端接收到同步信号；
发射端和接收端按照同步信号中的通讯方向信息进行通讯信号的传输。 在本实施例中， 发射端由 AC/DC模块、 第一控制器、 驱动电路、 线圈状态 探测模块、 第一调制解调模块、 电压电流检测模块和发射端线圈组成， 它们之 间为电连接； 所述接收端由整流模块、 电压调整模块、 第二控制器、 第二调制 解调模块、 外部负载和接收端线圈组成， 它们之间为电连接； 发射端和接收端 之间无线连接并传输电力， 接收端和金属物体统称为电能接收物体。
在本实施例中， 线圈由导线绕制而成， 线圈的形状可谓任意的某种形状和 任意尺寸， 发射端线圈和接收端线圈通过电磁耦合或者磁共振方式传输电力， 具体来说， 发射端线圈与能量相连， 它并不向外发射电磁波， 而是利用振荡器 产生高频振荡电流， 通过发射端线圈向外发射电磁波， 在周围形成一个非辐射 磁场， 即将电能转化为磁场， 当接收端线圈的固有频率与收到的电磁波频率相 同时， 接收端产生的振荡电流最强， 完成磁场到电能的转换， 从而实现电能的 高效传输。
在本实施例中， 发射端和接收端按照同步信号中的通讯方向信息设置无线 电力传输系统的通讯信号发送和接收状态包括：
通讯方向信息为： 发射端向接收端传输通讯信号， 按照同步信号中的通讯 方向信息将发射端设置为通讯信号发送端， 按照同步信号中的通讯方向信息将 接收端设置为通讯信号接收端， 发射端将待发送数据通过第一调制解调模块的 调制模块将通讯信号和电力信号叠加后， 通过发射端线圈和接收端线圈的耦合 传输到接收端， 接收端接收到叠加后的信号后通过第二调制解调模块的解调模 块分离出通讯信号， 并将分离出的通讯信号转换为数据；
通讯方向信息为： 接收端向发射端传输通讯信号， 按照同步信号中的通讯 方向信息将接收端设置为通讯信号发送端， 按照同步信号中的通讯方向信息将 发射端设置为通讯信号接收端， 接收端将待发送数据通过第二调制解调模块的 调制模块将通讯信号和电力信号叠加后， 通过接收端线圈和发射端线圈的耦合 传输到发射端， 发射端接收到叠加后的信号后通过第一调制解调模块的解调模 块分离出通讯信号， 并将分离出的通讯信号转换为数据。
在本实施例中， 电力信号与通讯信号叠加的过程即为调制， 在本发明的通 讯信号传输方法中， 始终伴随着电力信号的传输。
在电力传输和通讯阶段， 若发射端发现接收端有异常， 则进入异常处理阶 段； 若接收端需要发射端停止供电， 则向发射端发送停止指令， 发射端收到停 止指令后停止通讯和供电， 系统进入待机状态， 在预设的时间段之后进入就绪 状态， 准备下一次供电和通讯。
在本实施例中， 电力传输和通讯阶段之前还包括识别配置阶段： 无线电力 传输系统的发射端初始化完成后， 当无线电力传输系统的发射端探测到电能接 收物体， 则无线电力传输系统进入识别配置阶段， 发射端接收到来自电能接收 物体的通讯信号并验证是否为合法的接收端， 若是， 则发射端进入电力传输和 通讯阶段， 若不是合法的接收端， 则发射端发出不支持接收端报警， 若未收到 通讯信号， 则断定电能接收物体为异物， 发射端发出异物报警。
在本实施例中， 发送同步信号的时间前后还包括两个系统状态转换时间。 在本实施例中， 时间信息包括：
两个同步信号发送时间间隔为固定值， 时间信息为该固定值；
两个同步信号发送时间间隔不固定， 第一次时间间隔预先设定， 从第二次 开始后的时间间隔根据其上一次通讯信号传输所用的具体时间而变化， 其中发 射端向接收端传输通讯信号所对应的时间信息与接收端向发射端传输通讯信号 所对应的时间信息分别计算。
在本实施例中， 发射端和接收端按照同步信号中的通讯方向信息进行通讯 信号的传输具体为： 发射端和接收端按照同步信号中的通讯方向信息设置无线 电力传输系统的通讯信号发送或接收状态， 根据通讯方向信息进行从发射端到
接收端或者从接收端到发射端的通讯信号的传输， 直到电力传输和通讯阶段时 间结束。
以上所述仅为本发明的具体实施方式， 这些描述只是为了解释本发明的原 理， 而不能以任何方式解释为对本发明保护范围的限制。 基于此处的解释， 本 领域的技术人员不需要付出创造性的劳动即可联想到本发明的其它具体实施方 式， 这些方式都将落入本发明的保护范围之内。
Claims
1、 一种基于无线电力传输系统的通讯信号传输方法， 其特征在于， 包括： 信息、 时间信息和系统控制指令的同步信号， 发射端和接收端按照同步信号中 的通讯方向信息设置无线电力传输系统的通讯信号发送和接收状态， 所述同步 信号使通讯信号在同一时刻只有单一方向通讯；
发射端接收到同步信号；
发射端和接收端按照同步信号中的通讯方向信息进行通讯信号的传输。
2、 根据权利要求 1所述的基于无线电力传输系统的通讯信号传输方法， 其 特征在于， 所述发射端由 AC/DC模块、 第一控制器、 驱动电路、 线圈状态探测 模块、 第一调制解调模块、 电压电流检测模块和发射端线圈组成， 它们之间为 电连接； 所述接收端由整流模块、 电压调整模块、 第二控制器、 第二调制解调 模块、 外部负载和接收端线圈组成， 它们之间为电连接； 发射端和接收端之间 无线连接并传输电力， 发射端和接收端组成无线电力传输系统， 接收端和金属 物体统称为电能接收物体。
3、 根据权利要求 2所述的基于无线电力传输系统的通讯信号传输方法， 其 特征在于， 所述发射端和接收端按照同步信号中的通讯方向信息设置无线电力 传输系统的通讯信号发送和接收状态包括：
通讯方向信息为： 发射端向接收端传输通讯信号， 按照同步信号中的通讯 方向信息将发射端设置为通讯信号发送端， 按照同步信号中的通讯方向信息将 接收端设置为通讯信号接收端， 发射端将待发送数据通过第一调制解调模块的 调制模块将通讯信号和电力信号叠加后， 通过发射端线圈和接收端线圈的耦合 传输到接收端， 接收端接收到叠加后的信号后通过第二调制解调模块的解调模 块分离出通讯信号， 并将分离出的通讯信号转换为数据；
通讯方向信息为： 接收端向发射端传输通讯信号， 按照同步信号中的通讯 方向信息将接收端设置为通讯信号发送端， 按照同步信号中的通讯方向信息将 发射端设置为通讯信号接收端， 接收端将待发送数据通过第二调制解调模块的 调制模块将通讯信号和电力信号叠加后， 通过接收端线圈和发射端线圈的耦合 传输到发射端， 发射端接收到叠加后的信号后通过第一调制解调模块的解调模
块分离出通讯信号， 并将分离出的通讯信号转换为数据。
4、 根据权利要求 2所述的基于无线电力传输系统的通讯信号传输方法， 其 特征在于， 所述电力传输和通讯阶段之前还包括识别配置阶段： 无线电力传输 系统的发射端初始化完成后， 当无线电力传输系统的发射端探测到电能接收物 体， 则无线电力传输系统进入识别配置阶段， 发射端接收到来自电能接收物体 的通讯信号并验证是否为合法的接收端， 若是， 则发射端进入电力传输和通讯 阶段， 若不是合法的接收端， 则发射端发出不支持接收端报警， 若未收到通讯 信号， 则断定电能接收物体为异物， 发射端发出异物报警。
5、 根据权利要求 2所述的基于无线电力传输系统的通讯信号传输方法， 其 特征在于， 所述时间信息包括：
两个同步信号发送时间间隔为固定值， 时间信息为该固定值；
两个同步信号发送时间间隔不固定， 第一次时间间隔预先设定， 从第二次 开始后的时间间隔根据其上一次通讯信号传输所用的具体时间而变化， 其中发 射端向接收端传输通讯信号所对应的时间信息与接收端向发射端传输通讯信号 所对应的时间信息分别计算。
6、 一种基于无线电力传输系统的通讯信号传输系统， 其特征在于， 包括： 发射端和接收端， 所述通讯信号传输系统的工作方法为： 信息、 时间信息和系统控制指令的同步信号， 发射端和接收端按照同步信号中 的通讯方向信息设置无线电力传输系统的通讯信号发送和接收状态， 所述同步 信号使通讯信号在同一时刻只有单一方向通讯；
发射端接收到同步信号；
发射端和接收端按照同步信号中的通讯方向信息进行通讯信号的传输。
7、 根据权利要求 6所述的基于无线电力传输系统的通讯信号传输系统， 其 特征在于， 所述发射端由 AC/DC模块、 第一控制器、 驱动电路、 线圈状态探测 模块、 第一调制解调模块、 电压电流检测模块和发射端线圈组成， 它们之间为 电连接； 所述接收端由整流模块、 电压调整模块、 第二控制器、 第二调制解调 模块、 外部负载和接收端线圈组成， 它们之间为电连接； 发射端和接收端之间
无线连接并传输电力， 发射端和接收端组成无线电力传输系统， 接收端和金属 物体统称为电能接收物体。
8、根据权利要求 7所述的一种基于无线电力传输系统的通讯信号传输系统， 其特征在于， 所述发射端和接收端按照同步信号中的通讯方向信息设置无线电 力传输系统的通讯信号发送和接收状态包括：
通讯方向信息为： 发射端向接收端传输通讯信号， 按照同步信号中的通讯 方向信息将发射端设置为通讯信号发送端， 按照同步信号中的通讯方向信息将 接收端设置为通讯信号接收端， 发射端将待发送数据通过第一调制解调模块的 调制模块将通讯信号和电力信号叠加后， 通过发射端线圈和接收端线圈的耦合 传输到接收端， 接收端接收到叠加后的信号后通过第二调制解调模块的解调模 块分离出通讯信号， 并将分离出的通讯信号转换为数据；
通讯方向信息为： 接收端向发射端传输通讯信号， 按照同步信号中的通讯 方向信息将接收端设置为通讯信号发送端， 按照同步信号中的通讯方向信息将 发射端设置为通讯信号接收端， 接收端将待发送数据通过第二调制解调模块的 调制模块将通讯信号和电力信号叠加后， 通过接收端线圈和发射端线圈的耦合 传输到发射端， 发射端接收到叠加后的信号后通过第一调制解调模块的解调模 块分离出通讯信号， 并将分离出的通讯信号转换为数据。
9、根据权利要求 7所述的一种基于无线电力传输系统的通讯信号传输系统， 其特征在于， 所述电力传输和通讯阶段之前还包括识别配置阶段： 无线电力传 输系统的发射端初始化完成后， 当无线电力传输系统的发射端探测到电能接收 物体， 则无线电力传输系统进入识别配置阶段， 发射端接收到来自电能接收物 体的通讯信号并验证是否为合法的接收端， 若是， 则发射端进入电力传输和通 讯阶段， 若不是合法的接收端， 则发射端发出不支持接收端报警， 若未收到通 讯信号， 则断定电能接收物体为异物， 发射端发出异物报警。
10、 根据权利要求 7 所述的一种基于无线电力传输系统的通讯信号传输系 统， 其特征在于， 所述时间信息包括：
两个同步信号发送时间间隔为固定值， 时间信息为该固定值；
两个同步信号发送时间间隔不固定， 第一次时间间隔预先设定， 从第二次
开始后的时间间隔根据其上一次通讯信号传输所用的具体时间而变化， 其中发 射端向接收端传输通讯信号所对应的时间信息与接收端向发射端传输通讯信号 所对应的时间信息分别计算。
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