CN108718466B - Wireless energy supply equipment, passive electronic equipment, wireless communication method and system - Google Patents
Wireless energy supply equipment, passive electronic equipment, wireless communication method and system Download PDFInfo
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- H—ELECTRICITY
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- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W76/00—Connection management
- H04W76/10—Connection setup
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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
- H02J50/20—Circuit arrangements or systems for wireless supply or distribution of electric power using microwaves or radio frequency waves
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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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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
- H04W12/06—Authentication
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/80—Services using short range communication, e.g. near-field communication [NFC], radio-frequency identification [RFID] or low energy communication
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Abstract
The embodiment of the application provides wireless energy supply equipment, passive electronic equipment, a wireless communication method and a wireless communication system. The method comprises the following steps: the wireless energy supply equipment sends out a limited energy signal for detecting the passive electronic equipment in an electromagnetic wave mode; the wireless energy supply equipment receives a detection response signal fed back by the passive electronic equipment in an electromagnetic wave mode; the wireless energy supply equipment establishes a wireless magnetic power supply channel based on the detection response signal and continuously supplies energy to the passive electronic equipment according to the channel; in the continuous energy supply process: the wireless energy supply equipment and the passive electronic equipment establish a safe wireless data channel and transmit configuration information according to the channel; the wireless energy supply equipment establishes a high-speed wireless data channel with the passive electronic equipment based on the configuration information. The embodiment of the application can improve the data transmission efficiency between the wireless energy supply equipment and the passive electronic equipment while supplying energy to the passive electronic equipment.
Description
Technical Field
The present application relates to the field of wireless power transmission and wireless communication technologies, and in particular, to a wireless energy supply device, a passive electronic device, a wireless communication method and a wireless communication system.
Background
At present, wireless energy transfer and wireless data transmission can be performed through magnetic induction or magnetic resonance, that is, electromagnetic waves can be used as both energy carriers and data carriers, so that a plurality of passive systems with data exchange functions can be realized, for example: the POS machine is used as wireless energy supply equipment to drive a passive visual bank card (passive electronic equipment), the mobile phone is used as the wireless energy supply equipment, the NFC of the mobile phone drives a passive electronic coded lock (also passive electronic equipment), the mobile phone is used as the wireless energy supply equipment, and the NFC of the mobile phone drives a passive mobile phone cover (also passive electronic equipment) with a display screen.
However, efficiency, safety, power, interference, etc. are all factors to be considered when electromagnetic waves are used as energy transmission carriers. These factors all limit the data transmission rate when electromagnetic waves are used as a common carrier of energy and data, for example, the normal transmission rate of NFC is 106kbps, and the highest transmission rate is only 424kbps, such a transmission rate can realize operations such as identification and authentication of information from a card reader to a card end, but it is difficult to realize efficient transmission of a large amount of data such as pictures, audio, and video, and thus user experience of some passive electronic devices requiring large amount of data transmission is affected. Therefore, how to improve the data transmission efficiency between the wireless energy supply device and the passive electronic device while supplying energy to the passive electronic device is a technical problem to be solved urgently at present.
Disclosure of Invention
An object of the embodiments of the present application is to provide a wireless energy supply device, a passive electronic device, a wireless communication method and a system, so as to improve data transmission efficiency between the wireless energy supply device and the passive electronic device while supplying energy to the passive electronic device.
In order to achieve the above object, in one aspect, an embodiment of the present application provides a wireless communication method, including:
the wireless energy supply equipment sends out a limited energy signal for detecting the passive electronic equipment in an electromagnetic wave mode;
the wireless energy supply equipment receives a detection response signal fed back by the passive electronic equipment in an electromagnetic wave mode;
the wireless energy supply equipment establishes a wireless magnetic power supply channel based on the detection response signal and continuously supplies energy to the passive electronic equipment according to the channel;
in the continuous energy supply process:
the wireless energy supply equipment and the passive electronic equipment establish a safe wireless data channel and transmit configuration information according to the channel;
the wireless energy supply equipment establishes a high-speed wireless data channel with the passive electronic equipment based on the configuration information.
The wireless communication method of the embodiment of the application further comprises the following steps:
after a limited energy signal for detecting the passive electronic equipment is externally sent in an electromagnetic wave mode, the wireless energy supply equipment judges whether a detection response signal fed back by the passive electronic equipment in an electromagnetic wave mode is received within a preset waiting time;
if not, judging whether the appointed detection time is overtime;
if not, the limited energy signal for detecting the passive electronic equipment is sent out again in an electromagnetic wave mode.
The wireless communication method of the embodiment of the application further comprises the following steps:
if the detection response signal fed back by the passive electronic equipment in the electromagnetic wave mode is not received within the preset waiting time and the specified detection time is overtime, the external sending of the limited energy signal is stopped.
According to the wireless communication method, the wireless energy supply device and the passive electronic device establish a safe wireless data channel, and the method comprises the following steps:
in the continuous power supply process, the wireless power supply equipment and the passive electronic equipment perform bidirectional authentication;
after the mutual authentication is passed, the wireless energy supply equipment and the passive electronic equipment establish a safe wireless data channel.
The wireless communication method of the embodiment of the application further comprises the following steps:
if mutual authentication fails, the wireless power supply device terminates power supply to the passive electronic device.
According to the wireless communication method, the wireless magnetic power supply channel is powered in a magnetic coupling mode, or the wireless magnetic power supply channel is powered in a magnetic resonance mode.
In the wireless communication method of the embodiment of the application, the communication protocol of the secure wireless data channel comprises a wireless radio frequency communication protocol; the communication protocol of the high-speed wireless data channel comprises any one of the following protocols:
WiFi protocol, bluetooth protocol.
In the wireless communication method of the embodiment of the application, the wireless radio frequency communication protocol includes an NFC protocol.
On the other hand, the embodiment of the application also provides a wireless energy supply device for executing the wireless communication method.
According to the wireless energy supply equipment, when the wireless energy supply equipment is communicated with the passive electronic equipment based on the high-speed wireless data channel, the related sensitive data are transmitted through the safe wireless data channel.
The wireless energy supply equipment comprises a mobile terminal.
The wireless energy supply equipment of the embodiment of the application, the mobile terminal comprises a smart phone.
On the other hand, the embodiment of the present application further provides another wireless communication method, including:
the passive electronic equipment receives a limited energy signal which is externally sent by the wireless energy supply equipment in an electromagnetic wave mode;
under the energizing of the limited energy signal, the passive electronic equipment feeds back a detection response signal to the wireless energizing equipment in an electromagnetic wave mode;
the passive electronic equipment receives energy continuously provided by the wireless energy supply equipment through a wireless magnetic power supply channel; the wireless magnetic power supply channel is established by the passive electronic equipment based on the detection response signal;
in the continuous energy supply process:
the passive electronic equipment and the wireless energy supply equipment establish a safe wireless data channel and transmit configuration information according to the channel;
the passive electronic device establishes a high-speed wireless data channel with the wireless energy supply device based on the configuration information.
The wireless communication method of the embodiment of the application further comprises the following steps:
before the secure wireless data channel is established, the passive electronic device and the wireless energy supply device are subjected to mutual authentication.
According to the wireless communication method, the wireless magnetic power supply channel is powered in a magnetic coupling mode, or the wireless magnetic power supply channel is powered in a magnetic resonance mode.
In the wireless communication method of the embodiment of the application, the communication protocol of the secure wireless data channel comprises a wireless radio frequency communication protocol; the communication protocol of the high-speed wireless data channel comprises any one of the following protocols:
WiFi protocol, bluetooth protocol.
In the wireless communication method of the embodiment of the application, the wireless radio frequency communication protocol includes an NFC protocol.
On the other hand, the embodiment of the application also provides a passive electronic device for executing the wireless communication method.
According to the passive electronic equipment provided by the embodiment of the application, when the passive electronic equipment is communicated with the wireless energy supply equipment based on the high-speed wireless data channel, the related sensitive data are transmitted through the safe wireless data channel.
The passive electronic device of the embodiment of the application, the passive electronic device includes:
a passive visual mobile phone protective sleeve.
On the other hand, the embodiment of the present application further provides a wireless communication system, which includes the above wireless power supply device and the above passive electronic device.
According to the technical scheme provided by the embodiment of the application, the wireless energy supply equipment provided by the embodiment of the application can continuously supply energy to the passive electronic equipment through the wireless magnetic power supply channel, and meanwhile, a safe wireless data channel can be established with the passive electronic equipment, and configuration information is transmitted according to the channel; then, a high-speed wireless data channel is established with the passive electronic equipment based on the transmitted configuration information, so that double-data-channel connection between the wireless energy supply equipment and the passive electronic equipment is realized, high-speed data transmission between the wireless energy supply equipment and the passive electronic equipment can be realized through the high-speed wireless data channel, and sensitive data transmission between people can be realized through the safe wireless data channel. Therefore, the embodiment of the application improves the data transmission efficiency and the safety between the wireless energy supply equipment and the passive electronic equipment while supplying energy to the passive electronic equipment.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, it is obvious that the drawings in the following description are only some embodiments described in the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without any creative effort. In the drawings:
fig. 1 is a schematic structural diagram of a wireless communication system according to an embodiment of the present application;
FIG. 2 is a schematic structural diagram of a wireless power supply device according to an embodiment of the present application;
fig. 3 is a schematic structural diagram of a passive electronic device according to an embodiment of the present application;
FIG. 4 is a flowchart illustrating interaction between a wireless power supply device and a passive electronic device according to an embodiment of the present application;
fig. 5a is a schematic structural diagram of a wireless power supply device according to an embodiment of the present application;
fig. 5b is a schematic structural diagram of a wireless power supply device according to an embodiment of the present application;
fig. 6 is a schematic structural diagram of a passive electronic device according to an embodiment of the present application.
Detailed Description
In order to make those skilled in the art better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, 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 application. For example, in the following description, forming the second component over the first component may include embodiments in which the first and second components are formed in direct contact, embodiments in which the first and second components are formed in non-direct contact (i.e., additional components may be included between the first and second components), and so on.
Also, for ease of description, some embodiments of the present application may use spatially relative terms such as "above …," "below …," "top," "below," etc., to describe the relationship of one element or component to another (or other) element or component as illustrated in the various figures of the embodiments. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements or components described as "below" or "beneath" other elements or components would then be oriented "above" or "over" the other elements or components.
Referring to fig. 1, a wireless communication system of an embodiment of the present application may include a wireless energy-providing device 100 and a passive electronic device 200. Wherein, the wireless energy supply device 100 can continuously supply energy to the passive electronic device 200 through the wireless magnetic power supply channel 300. During the continuous powering process, the wireless power supply device 100 may establish a secure wireless data channel 400 with the passive electronic device 200 and transmit configuration information according to the channel. On this basis, the wireless energy supply device 100 can also establish a high-speed wireless data channel 500 with the passive electronic device 200 based on the configuration information for high-speed data transmission between the wireless energy supply device 100 and the passive electronic device 200.
In some embodiments of the present application, a coexistence condition is provided by two data channels (i.e. the secure wireless data channel 400 and the high-speed wireless data channel 500), where coexistence refers to that the high-speed wireless data channel 500 does not occupy the bandwidth of the secure wireless data channel 400, and both data channels can transmit data at the same time. This allows for more selectivity in the exchange of data information between the wireless powered device 100 and the passive electronic device 200. For example, in view of the higher data transmission security of the secure wireless data channel 400, it can be used as a transmission channel for some sensitive information (e.g. security key, payment information, etc.) to improve data security. The high-speed wireless data channel 500 is used as an extension of the secure wireless data channel 400, and can meet the requirement for high-speed data transmission, so that real-time transmission of some big data contents (such as pictures, audio, video and the like) can be realized, and the requirement for secure high-speed data transmission between the wireless energy supply device 100 and the passive electronic device 200 can be met by matching the transmission of sensitive information by the secure wireless data channel 400 and the transmission of big data information by the high-speed wireless data channel 500. In addition, the secure wireless data channel 400 and the high-speed wireless data channel 500 may be emergency backup, that is, when one data channel cannot be used due to congestion, interference or equipment failure, the other data channel may be used as an emergency.
In some embodiments of the present application, the wireless power supply device 100 may be, for example, a mobile terminal, a POS machine, an inductive electronic combination lock, a card reader, and an electronic terminal device (e.g., a self-service terminal) equipped with a card reader. In some exemplary embodiments of the present application, the mobile terminal may be, for example, a smartphone, a tablet computer, or a wearable smart device, among others.
In some embodiments of the present application, the passive electronic device 200 may be, for example, a passive visual mobile phone protective case, a passive inductive electronic combination lock, a passive visual bank card, or a passive electronic key driven by the inductive electronic combination lock. In some embodiments of the present application, the passive electronic device 200 may be driven by a dedicated wireless energy-providing device 100 (e.g., an inductive electronic combination lock corresponding to a passive electronic key); or may be driven by a general wireless powered device 100 (e.g., a smart phone); of course, the wireless energy supply device 100 can be driven by a special wireless energy supply device 100, and can also be driven by a general wireless energy supply device 100.
As shown in fig. 2, in an embodiment of the present application, the wireless power supply device 100 may include a first coil 101, a first antenna 102, a power interface 103, a secure data interface 104, a high-speed data communication interface 105, a user application 106, a power source 107, and electromagnetic waves 108.
In an embodiment of the present application, the user application 106 may enable management of the energy interface 103, and the energy source 107 may generally be an energy storage device inside the wireless energy supply device, such as a battery or the like. The energy interface 103 may transmit energy of the energy source 107 through the first antenna 101 in the form of electromagnetic waves 108. The secure data interface 104 may attach data information to the electromagnetic waves 108 to enable the synchronous transmission of energy and data. In an embodiment of the present application, the user application 106 may also be used to implement the allocation of data information, for example, whether the allocation information is transmitted through the secure data interface 104 or the high-speed data communication interface 105. In an embodiment of the present application, the user application 106 may also display the transmission data information. In an embodiment of the present application, the User application 106 may be, for example, a Graphical User Interface (GUI).
As shown in connection with fig. 3, in some embodiments of the present application, the passive electronic device 200 may include a second coil 201, a second antenna 202, an energy interface 203, a secure data interface 204, a power supply and communication control module 205, and a high-speed data exchange interface 206. In other embodiments of the present application, the passive electronic device 200 may further include other power consuming modules 207.
In an embodiment of the present application, the second coil 201 may be configured to receive an energy signal provided by the wireless energy supply device 100 through the wireless magnetic power supply channel 300, and may also serve as a signal transceiving antenna for the passive electronic device 200 to communicate with the wireless energy supply device 100 through the secure wireless data channel 400. In an embodiment of the present application, the second coil 201 may receive the energy signal provided by the wireless power supply apparatus 100 through the wireless magnetic power supply channel 300 by magnetic induction or magnetic resonance, and provide the received energy signal to the energy interface 203.
In an embodiment of the present application, the power interface 203 may be configured to convert the power signal received by the second coil 201 into a direct current suitable for the passive electronic device 200, and may provide the direct current to the power utilization modules, such as the secure data interface 204, the power supply and communication control module 205, and the high-speed data exchange interface 206. In an exemplary embodiment of the present application, the energy interface 203 may be, for example, a rectifier or the like.
In an embodiment of the present application, the power supply and communication control module 205 may be configured to implement control and data processing on the secure data interface 204, the high-speed data exchange interface 206, and the other power utilization modules 207, and in addition, the power supply and communication control module 205 may be further configured to uniformly manage the power output by the energy interface 203. In some exemplary embodiments of the present application, the power supply and communication control module 205 may include, for example, a microprocessor or microcontroller.
In an embodiment of the present application, the secure data interface 204 may be used to enable two-way secure communications between the passive electronic device 200 and the wirelessly powered device 100. In an exemplary embodiment of the present application, the secure data interface 204 may be, for example, an NFC module, an RFID module, or the like. Since the communication distance of these modules, such as NFC modules, is short and the security is high, the security of the communication between the passive electronic device 200 and the wireless power supply device 100 can be greatly improved, and therefore, the secure wireless data channel 400 is more suitable for transmitting some sensitive information, important information, and the like. Of course, if the information to be transmitted does not have high requirement on the transmission rate, the information may also be transmitted through the secure wireless data channel 400.
In an embodiment of the present application, the second antenna 202 may be used as a signal transceiving antenna for the passive electronic device 200 to communicate with the wireless power supply device 100 through the secure wireless data channel 400.
In an embodiment of the present application, the high-speed data exchange interface 206 may be used to enable high-speed data communication between the passive electronic device 200 and the wireless power enabled device 100. In an exemplary embodiment of the present application, the high speed data exchange interface 206 may be, for example, a WiFi module, a bluetooth module, etc. Therefore, the high-speed wireless data channel 500 can achieve higher-speed data transmission than the secure wireless data channel 400, and thus can be beneficial to meet the data transmission requirements of high-speed large data volume (e.g., pictures, audio, video, etc.) between the passive electronic device 200 and the wireless power device 100.
The communication process between the wireless power supply device 100 and the passive electronic device 200 is explained below with reference to fig. 4.
In an embodiment of the present application, referring to fig. 4, the wireless communication method on the side of the wireless energy supply device 100 may include the following steps:
1) the wireless power supply device 100 sends out a limited power signal for detecting the passive electronic device 200 in an electromagnetic wave manner.
In an embodiment of the present application, the energy of the limited energy signal externally transmitted by the wireless energy supply device 100 in an electromagnetic wave manner is very limited; generally, the limited-power signal may only provide enough power for the wireless-powered device 100 to electromagnetically feed back a detection response signal after being powered on or awakened. With the limited-power signal, the wireless-powered device 100 can detect or identify whether there is an available passive electronic device 200 within range of the target.
In another embodiment of the present application, after the limited energy signal for detecting the passive electronic device 200 is sent out by electromagnetic waves, the wireless power supply device 100 may further determine whether the detection response signal fed back by the passive electronic device 200 by electromagnetic waves is received within a preset waiting time. If not, further judging whether the appointed detection time is overtime; if not, the limited energy signal for detecting the passive electronic device 200 can be sent out again in an electromagnetic wave mode so as to continue the detection; if the detection response signal fed back by the passive electronic device 200 in the form of electromagnetic wave is not received within the preset waiting time and the specified detection time is over, the external sending of the limited energy signal may be terminated.
2) The wireless energy supply device 100 receives the detection response signal fed back by the passive electronic device 200 in an electromagnetic wave manner.
In an embodiment of the present application, after the limited energy signal for detecting the passive electronic device 200 is sent out by electromagnetic waves, if the wireless power supply device 100 receives the detection response signal fed back by the passive electronic device 200 by electromagnetic waves within the preset waiting time, it indicates that there is an available passive electronic device 200 within the target range.
3) The wireless energy supply device 100 establishes a wireless magnetic power supply channel based on the detection response signal, and continuously supplies energy to the passive electronic device according to the wireless magnetic power supply channel.
In an embodiment of the present application, when it is determined that there is an available wireless energy supplying device 100 within the target range, the wireless energy supplying device 100 can establish a wireless magnetic energy supplying channel for continuously supplying energy to the passive electronic device 200, i.e. the wireless energy supplying device 100 can continuously supply energy to the passive electronic device 200 in a magnetic coupling or magnetic resonance manner, so as to meet the requirement of the passive electronic device 200 for normal operation.
4) During the continuous power supply process, the wireless power supply device 100 and the passive electronic device 200 may establish a secure wireless data channel 400, and may transmit data, such as configuration information and sensitive information, according to the secure wireless data channel.
In an exemplary embodiment of the present application, the configuration information may include configuration information (e.g., communication center frequency, rate, modulation parameters, key, etc.) required for subsequent establishment of the high-speed wireless data channel 500 between the wireless-powered device 100 and the passive electronic device 200. In this way, the wireless power supply device 100 and the passive electronic device 200 can avoid the manual configuration process when the high-speed wireless data channel 500 is subsequently established.
In an exemplary embodiment of the present application, the secure wireless data channel 100 may employ a radio frequency communication protocol, such as an NFC protocol, an RFID protocol, or the like, to improve the security of communication.
In an embodiment of the present application, during the continuous power supply process, the wireless power supply device 100 and the passive electronic device 200 perform bidirectional authentication, and the specific authentication may be performed in a manner of password, challenge-response, or the like; after the mutual authentication is passed, the wireless energy supply device 100 establishes a secure wireless data channel 400 with the passive electronic device 200, so as to improve the security of communication. If mutual authentication fails, the wireless energizing device 100 can terminate energizing the passive electronic device 200.
5) During the continuous power supply process, the wireless power supply device 100 establishes a high-speed wireless data channel 500 with the passive electronic device 200 based on the configuration information.
In an embodiment of the present application, the high-speed wireless data channel 500 may use a short-distance wireless communication protocol such as a WiFi protocol, a bluetooth protocol, and the like.
In an embodiment of the present application, referring to fig. 4, the wireless communication method on the passive electronic device 200 side may include the following steps:
1) the passive electronic device 200 receives the limited energy signal externally transmitted by the wireless energy supply device 100 in an electromagnetic wave mode.
In an embodiment of the present application, after the passive electronic device 200 receives the limited-energy signal externally transmitted by the wireless energy supply device 100 in an electromagnetic wave manner, the limited-energy signal is converted into electric energy suitable for the wireless energy supply device 100 to use.
2) And under the energy supply of the limited energy signal, the passive electronic equipment feeds back the detection response signal to the wireless energy supply equipment in an electromagnetic wave mode.
In an embodiment of the present application, according to a predetermined convention, under the energizing of the limited energy signal, the passive electronic device 100 may feed back a detection response signal to the wireless energizing device 100 through the second coil 201 in an electromagnetic wave manner, so as to respond to the detection of the wireless energizing device 100.
3) And the passive electronic equipment receives the energy continuously provided by the wireless energy supply equipment through the wireless magnetic power supply channel.
4) And in the continuous energy supply process, the passive electronic equipment and the wireless energy supply equipment establish a safe wireless data channel and transmit configuration information according to the channel.
5) And the passive electronic equipment establishes a high-speed wireless data channel with the wireless energy supply equipment based on the configuration information.
In an exemplary application scenario of the present application, the wireless power supply device in the wireless communication system may be a smart phone 100 as shown in fig. 5 a. The smart phone 100 may further have an application 110 installed therein, where the application 110 may include modules such as an NFC control switch 111, a bluetooth control switch 112, a communication content controller 113, and an information display 114. As shown in fig. 5b, the NFC first coil 101 and the bluetooth first antenna 102 of the smart phone 100 may be disposed in the smart phone 100.
In the above application scenario, correspondingly, the passive electronic device in the wireless communication system may be a passive visual mobile phone protective case 200 as shown in fig. 6. The passive visual cell phone case 200 may include an NFC second coil 201, a bluetooth second antenna 202, a display screen 208, and other power modules 207. Due to the fact that the NFC communication distance is short, the position of the NFC second coil 201 on the visual mobile phone protective sleeve 200 is correspondingly matched with the position of the NFC first coil 101 on the smart mobile phone 100; however, the transmission distance of bluetooth is far relative to NFC, which is not limited to this, and may be specifically set as required.
In the above application scenario, the wireless transmission channel between the NFC first coil 101 and the NFC second coil 201 may be used as the secure wireless data channel 400, and the wireless transmission channel between the bluetooth first antenna 102 and the bluetooth second antenna 202 may be used as the high-speed wireless data channel 500.
In the above application scenario, during specific use, the passive visual mobile phone protective case 200 is firstly sleeved on the smart phone 100, or the passive visual mobile phone protective case 200 is close to the smart phone 100. After the application program 110 is opened, the NFC card reader function of the smartphone 100 may be started in the application program 110 through the NFC control switch 111, and at this time, the NFC first coil 101 may send a limited energy signal to the outside in an electromagnetic wave manner. If the distance between the NFC second coil 201 and the NFC first coil 101 meets the NFC communication requirement, the NFC second coil 201 receives the limited energy signal. Accordingly, the passive visual mobile phone protection case 200 returns a detection response signal through the NFC second coil 201. In this case, the smartphone 100 may establish a wireless magnetic power supply channel through the NFC first coil 101 and the NFC second coil 201, so that the smartphone 100 may continuously and stably feed energy to the NFC second coil 201 in the form of an electromagnetic wave through the NFC first coil 101; this constant and stable power supply allows the passive visual cell phone protective case 200 to work properly.
During the above-mentioned continuous and stable power supply process, the NFC first coil 101 and the NFC second coil 201 may establish an NFC connection (i.e., establish the secure wireless data channel 400). Based on the NFC connection, security information, bluetooth configuration information, and the like can be transmitted between the smart phone 100 and the passive visual mobile phone sheath 200. Based on the information transferred, a bluetooth connection (i.e., a high speed wireless data channel 500) can be automatically established between the smartphone 100 and the passive visual cell phone case 200. So far, a double data channel connection can be realized between the smart phone 100 and the passive visual mobile phone protective case 200. Based on the bluetooth connection, the smartphone 100 may transmit pictures, two-dimensional codes, text, etc. to the passive visual phone case 200 and display on the display screen 208. In another application scenario, as shown in fig. 6, one or more sensors 209 (e.g., a temperature sensor, a pressure sensor, a dust sensor, a photoelectric sensor, etc.) may be further configured on the passive visual mobile phone protective case 200, and accordingly, the smart phone 100 may acquire data information of the sensors 209 based on a bluetooth connection.
While the process flows described above include operations that occur in a particular order, it should be appreciated that the processes may include more or less operations that are performed sequentially or in parallel (e.g., using parallel processors or a multi-threaded environment).
For convenience of description, the above devices are described as being divided into various units by function, and are described separately. Of course, the functionality of the units may be implemented in one or more software and/or hardware when implementing the present application.
The present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
In a typical configuration, a computing device includes one or more processors (CPUs), input/output interfaces, network interfaces, and memory.
The memory may include forms of volatile memory in a computer readable medium, Random Access Memory (RAM) and/or non-volatile memory, such as Read Only Memory (ROM) or flash memory (flash RAM). Memory is an example of a computer-readable medium.
Computer-readable media, including both non-transitory and non-transitory, removable and non-removable media, may implement information storage by any method or technology. The information may be computer readable instructions, data structures, modules of a program, or other data. Examples of computer storage media include, but are not limited to, phase change memory (PRAM), Static Random Access Memory (SRAM), Dynamic Random Access Memory (DRAM), other types of Random Access Memory (RAM), Read Only Memory (ROM), Electrically Erasable Programmable Read Only Memory (EEPROM), flash memory or other memory technology, compact disc read only memory (CD-ROM), Digital Versatile Discs (DVD) or other optical storage, magnetic cassettes, magnetic tape magnetic disk storage or other magnetic storage devices, or any other non-transmission medium that can be used to store information that can be accessed by a computing device. As defined herein, a computer readable medium does not include a transitory computer readable medium such as a modulated data signal and a carrier wave.
It should also be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, 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, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method or apparatus that comprises the element.
As will be appreciated by one skilled in the art, embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The application may be described in the general context of computer-executable instructions, such as program modules, being executed by a computer. Generally, program modules include routines, programs, objects, components, data structures, etc. that perform particular tasks or implement particular abstract data types. The application may also be practiced in distributed computing environments where tasks are performed by remote processing devices that are linked through a communications network. In a distributed computing environment, program modules may be located in both local and remote computer storage media including memory storage devices.
The embodiments in the present specification are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
The above description is only an example of the present application and is not intended to limit the present application. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.
Claims (18)
1. A passive electronic device, comprising:
the coil is used for receiving a limited energy signal which is externally sent by wireless energy supply equipment in an electromagnetic wave mode and an energy signal which is provided by the wireless energy supply equipment through a wireless magnetic power supply channel;
a secure data interface for enabling two-way secure communication between the passive electronic device and the wirelessly powered device;
the high-speed data exchange interface is used for realizing high-speed data communication between the passive electronic equipment and the wireless energy supply equipment;
the energy interface is used for converting an energy signal received by the coil into direct current suitable for the passive electronic equipment to use and providing the direct current to the safety data interface, the high-speed data exchange interface and a power supply and communication control module of the passive electronic equipment;
the power supply and communication control module is used for:
when the coil receives a limited energy signal which is externally sent by the wireless energy supply equipment in an electromagnetic wave mode, the safety data interface is controlled to feed back a detection response signal to the wireless energy supply equipment in an electromagnetic wave mode through the coil under the energy supply of the limited energy signal;
when the coil receives the energy continuously provided by the wireless energy supply equipment through a wireless magnetic power supply channel; the wireless magnetic power supply channel is established by the passive electronic equipment based on the detection response signal; in the continuous energy supply process:
controlling the secure data interface to establish a secure wireless data channel with the wireless energy supply equipment, and transmitting configuration information according to the channel;
and controlling the high-speed data exchange interface to establish a high-speed wireless data channel with the wireless energy supply equipment based on the configuration information.
2. The passive electronic device of claim 1, wherein sensitive data involved is transmitted over the secure wireless data channel when the passive electronic device communicates with the wireless energy-providing device over the high-speed wireless data channel.
3. The passive electronic device of claim 1, wherein the passive electronic device comprises:
a passive visual mobile phone protective sleeve.
4. The passive electronic device of claim 1, wherein the power and communication control module is further to:
and controlling the secure data interface to perform mutual authentication with the wireless energy supply equipment before the secure wireless data channel is established.
5. The passive electronic device of claim 1, wherein the wireless magnetic powering channels are magnetically coupled powered or wherein the wireless magnetic powering channels are magnetically resonant powered.
6. The passive electronic device of claim 1, wherein the communication protocol of the secure wireless data channel comprises a wireless radio frequency communication protocol; the communication protocol of the high-speed wireless data channel comprises any one of the following protocols:
WiFi protocol, bluetooth protocol.
7. The passive electronic device of claim 6, wherein the wireless radio frequency communication protocol comprises an NFC protocol.
8. A wireless communication method applied to the passive electronic device of claim 1, the method comprising:
the passive electronic equipment receives a limited energy signal which is externally sent by the wireless energy supply equipment in an electromagnetic wave mode;
under the energizing of the limited energy signal, the passive electronic equipment feeds back a detection response signal to the wireless energizing equipment in an electromagnetic wave mode;
the passive electronic equipment receives energy continuously provided by the wireless energy supply equipment through a wireless magnetic power supply channel; the wireless magnetic power supply channel is established by the passive electronic equipment based on the detection response signal;
in the continuous energy supply process:
the passive electronic equipment and the wireless energy supply equipment establish a safe wireless data channel and transmit configuration information according to the channel;
the passive electronic device establishes a high-speed wireless data channel with the wireless energy supply device based on the configuration information.
9. The wireless communication method of claim 8, wherein when the passive electronic device communicates with the wireless powered device over the high-speed wireless data channel, the sensitive data involved is transmitted over the secure wireless data channel.
10. The wireless communication method of claim 8, wherein the passive electronic device comprises:
a passive visual mobile phone protective sleeve.
11. The wireless communication method of claim 8, wherein the power and communication control module is further configured to:
and controlling the secure data interface to perform mutual authentication with the wireless energy supply equipment before the secure wireless data channel is established.
12. The wireless communication method of claim 8, wherein the wireless magnetic powering channel is magnetically coupled powered or wherein the wireless magnetic powering channel is magnetically resonant powered.
13. The wireless communication method of claim 8, wherein the communication protocol of the secure wireless data channel comprises a wireless radio frequency communication protocol; the communication protocol of the high-speed wireless data channel comprises any one of the following protocols:
WiFi protocol, bluetooth protocol.
14. The wireless communication method of claim 13, wherein the wireless radio frequency communication protocol comprises an NFC protocol.
15. A wireless communication system comprising a wireless energy-providing device and a passive electronic device as claimed in any one of claims 8 to 14.
16. The wireless communication system of claim 15, wherein the wireless energy-providing device is further configured to:
after a limited energy signal for detecting the passive electronic equipment is externally sent in an electromagnetic wave mode, whether a detection response signal fed back by the passive electronic equipment in an electromagnetic wave mode is received within a preset waiting time is judged;
if not, judging whether the appointed detection time is overtime;
if not, the limited energy signal for detecting the passive electronic equipment is sent out again in an electromagnetic wave mode.
17. The wireless communication system of claim 16, wherein the wireless energy-providing device is further configured to:
if the detection response signal fed back by the passive electronic equipment in the electromagnetic wave mode is not received within the preset waiting time and the specified detection time is overtime, the external sending of the limited energy signal is stopped.
18. The wireless communication system of claim 15, wherein the wireless-powered device comprises a mobile terminal.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810479565.0A CN108718466B (en) | 2018-05-18 | 2018-05-18 | Wireless energy supply equipment, passive electronic equipment, wireless communication method and system |
| PCT/CN2019/087186 WO2019219053A1 (en) | 2018-05-18 | 2019-05-16 | Wireless power supply device, passive electronic device, and wireless communication method and system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810479565.0A CN108718466B (en) | 2018-05-18 | 2018-05-18 | Wireless energy supply equipment, passive electronic equipment, wireless communication method and system |
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| CN108718466A CN108718466A (en) | 2018-10-30 |
| CN108718466B true CN108718466B (en) | 2020-10-23 |
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| WO (1) | WO2019219053A1 (en) |
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| CN108718466B (en) * | 2018-05-18 | 2020-10-23 | 南京启纬智芯微电子有限公司 | Wireless energy supply equipment, passive electronic equipment, wireless communication method and system |
| CN110995323B (en) * | 2019-11-28 | 2021-05-25 | 北京优炫智能科技有限公司 | Passive device |
| DE102020101579A1 (en) | 2020-01-23 | 2021-07-29 | Infineon Technologies Ag | Mobile radio terminal coverage and system for providing a cryptographically secured transaction |
| CN111610391A (en) * | 2020-05-09 | 2020-09-01 | 广东雷霆技术有限公司 | Power supply efficiency detection method applied to NFC wireless power supply technology |
| CN111967283A (en) * | 2020-09-17 | 2020-11-20 | 深圳市银通商智能卡有限公司 | Method and system for transmitting application data of IC card |
| CN117941424A (en) * | 2021-09-14 | 2024-04-26 | Oppo广东移动通信有限公司 | Communication method, terminal and network equipment |
| WO2023173379A1 (en) * | 2022-03-17 | 2023-09-21 | Oppo广东移动通信有限公司 | Data transmission methods, first device and second device |
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| WO2011121185A1 (en) * | 2010-03-31 | 2011-10-06 | Teknologian Tutkimuskeskus Vtt | Reading device and method for electrical codes |
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| CN103779881B (en) * | 2012-10-24 | 2016-05-25 | 鸿富锦精密工业（深圳）有限公司 | Battery and there is the charging system of this battery |
| US9077390B1 (en) * | 2013-12-18 | 2015-07-07 | Nxp B.V. | Wireless charging and communication |
| CN108718466B (en) * | 2018-05-18 | 2020-10-23 | 南京启纬智芯微电子有限公司 | Wireless energy supply equipment, passive electronic equipment, wireless communication method and system |
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| WO2011121185A1 (en) * | 2010-03-31 | 2011-10-06 | Teknologian Tutkimuskeskus Vtt | Reading device and method for electrical codes |
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| CN108718466A (en) | 2018-10-30 |
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