WO2016033874A1

WO2016033874A1 - Wireless charging processing method and apparatus, and wireless charger

Info

Publication number: WO2016033874A1
Application number: PCT/CN2014/091703
Authority: WO
Inventors: 顾云峰; 丁剑锋
Original assignee: 中兴通讯股份有限公司
Priority date: 2014-09-01
Filing date: 2014-11-19
Publication date: 2016-03-10
Also published as: CN105470598A

Abstract

The present invention provides a wireless charging processing method and apparatus, and a wireless charger. The method comprises: receiving a signal sent by a terminal; determining, according to the received signal, whether a distance between a detection module used for detecting a signal and the terminal is greater than a preset threshold; and when the distance between the detection module and the terminal is greater than the preset threshold, switching off a control circuit used for controlling a sending circuit to send wireless power. By means of the present invention, the problem existing in the related art that the no-load power consumption is great when a terminal is charged by using a wireless charging device is solved, thereby achieving the effect of reducing the no-load consumption.

Description

Wireless charging processing method, device and wireless charger

Technical field

The present invention relates to the field of communications, and in particular to a wireless charging processing method and apparatus, and a wireless charger.

Background technique

At present, mobile terminals are being used more and more widely. With the gradual strengthening of terminal functions, people can listen to songs through the terminal, can watch TV, can access the Internet, etc. The terminal is full of rich entertainment, starting from people's lives. More and more important. However, it has been found that during the use of the mobile terminal, due to the limitation of the battery capacity, the battery power is quickly used up, so it is necessary to frequently charge the battery of the terminal.

With the development of technology, wireless charging technology represented by electromagnetic induction and resonance has emerged as the times require, and the emergence of wireless chargers has brought great convenience to consumers. The wireless charging device can conveniently charge the mobile phone and get rid of the line. 1 is a block diagram of a wireless charging implementation in the related art. As shown in FIG. 1, the implementation of the wireless charging function is mainly implemented by two parts, one is a transmitting end 12, one is a receiving terminal 14, and between a transmitting end and a receiving terminal. The transfer of electrical energy is achieved by the coil. 2 is a block diagram of a structure of a transmitting end in the related art. As shown in FIG. 2, the transmitting end includes a power interface 22, a control circuit 24, and a transmitting circuit 26; the power interface 22 is an access point for external power; There is a control circuit 24 in the terminal that controls the transmitting circuit 26. When the control circuit 24 detects that there is a receiving terminal outside, the control circuit 24 controls the transmitting circuit 26 to start the transfer of energy; if the receiving terminal is not detected, there is no transfer of energy. Although the wireless charging process avoids that the transmitting end is always in the power transmission state, a certain no-load loss is reduced; however, there is a problem in that the control circuit 24 is always working, and the control circuit 24 needs to continuously monitor and receive. The incoming signal determines whether the wireless charging receiving terminal is connected, so that it can respond to the external receiving terminal in time. The continuous operation of the control circuit 24 results in a large no-load consumption.

Therefore, in the related art, when the battery of the terminal is charged using the wireless charging device, there is a problem that the transmission efficiency is low, and the no-load consumption power of the wireless charging device is large, and there is a waste of energy.

In view of the problem that the no-load power consumption is large when the terminal is charged by using the wireless charging device existing in the related art, an effective solution has not been proposed at present.

Summary of the invention

The present invention provides a wireless charging processing method and apparatus, and a wireless charger, to at least solve the problem that the no-load power consumption is large when the wireless charging device is used to charge the terminal in the related art.

According to an aspect of the present invention, a wireless charging processing method includes: receiving a signal sent by a terminal; determining, according to the received signal, whether a distance between a detecting module for detecting the signal and the terminal is less than a predetermined threshold; when the distance between the detection module and the terminal is greater than the predetermined threshold, turning off a control circuit for controlling transmission circuitry to transmit radio energy.

Preferably, the wireless charging method further includes: when a distance between the detecting module and the terminal is less than the predetermined threshold, the trigger control circuit controls the transmitting circuit to transmit radio energy, and uses the transmitted radio energy to the terminal Make wireless charging.

Preferably, the triggering control circuit controlling the transmitting circuit to transmit the radio energy comprises: transmitting an enable signal to the control circuit.

Preferably, turning off the control circuit comprises terminating sending an enable signal to the control circuit.

Preferably, the receiving the signal sent by the terminal comprises at least one of: receiving a Bluetooth signal sent by the terminal; and receiving a WIFI signal sent by the terminal.

According to another aspect of the present invention, a wireless charging processing apparatus includes: a receiving module configured to receive a signal sent by a terminal; and a determining module configured to determine, according to the received signal, a detection for detecting the signal Whether the distance between the module and the terminal is greater than a predetermined threshold; and the closing module is configured to, when the distance between the detecting module and the terminal is greater than the predetermined threshold, turn off control for controlling transmission circuitry to transmit radio energy Circuit.

Preferably, the wireless charging processing apparatus further includes: a triggering module, configured to: when the distance between the detecting module and the terminal is less than the predetermined threshold, the triggering control circuit controls the transmitting circuit to transmit the wireless energy, and uses the sent The radio can wirelessly charge the terminal.

Preferably, the triggering module comprises: a transmitting unit configured to send an enable signal to the control circuit.

Advantageously, the shutdown module includes a termination unit configured to terminate transmitting an enable signal to the control circuit.

Preferably, the receiving module includes at least one of the following: a first receiving unit configured to receive a Bluetooth signal sent by the terminal; and a second receiving unit configured to receive a WIFI signal sent by the terminal.

According to still another aspect of the present invention, a wireless charger is provided, including a power interface for connecting a power source, a transmitting circuit for performing wireless energy transmission, a control circuit for controlling the transmitting circuit to transmit radio energy, and The wireless charging processing device according to any one of the preceding claims, wherein the power supply interface, the wireless charging processing device, the control circuit, and the transmitting circuit are sequentially connected.

According to the present invention, the signal sent by the receiving terminal is used; and according to the received signal, it is determined whether the distance between the detecting module for detecting the signal and the terminal is greater than a predetermined threshold; when the detecting module and the terminal When the distance between the two is greater than the predetermined threshold, the control circuit for controlling the transmitting circuit to transmit the radio energy is turned off, and the problem that the no-load power consumption is large when the wireless charging device is used to charge the terminal in the related art is solved, thereby achieving the reduction. The effect of small no-load consumption.

DRAWINGS

The drawings described herein are intended to provide a further understanding of the invention, and are intended to be a part of the invention. In the drawing:

1 is a block diagram of a wireless charging implementation in the related art;

2 is a block diagram showing a structure of a transmitting end in the related art;

3 is a flowchart of a wireless charging processing method according to an embodiment of the present invention;

4 is a block diagram showing the structure of a wireless charging processing apparatus according to an embodiment of the present invention;

FIG. 5 is a block diagram showing a preferred structure of a wireless charging processing apparatus according to an embodiment of the present invention; FIG.

FIG. 6 is a structural block diagram of a trigger module 52 in a wireless charging processing apparatus according to an embodiment of the present invention; FIG.

FIG. 7 is a structural block diagram of a shutdown module 46 in a wireless charging processing apparatus according to an embodiment of the present invention; FIG.

FIG. 8 is a structural block diagram of a receiving module 42 in a wireless charging processing apparatus according to an embodiment of the present invention;

9 is a structural block diagram of a wireless charger according to an embodiment of the present invention;

FIG. 10 is a block diagram showing a structure of a transmitting end according to an embodiment of the present invention; FIG.

11 is a structural block diagram of a receiving terminal in an embodiment of the present invention;

12 is a flow chart of wireless charging in accordance with an embodiment of the present invention.

detailed description

The invention will be described in detail below with reference to the drawings in conjunction with the embodiments. It should be noted that the embodiments in the present application and the features in the embodiments may be combined with each other without conflict.

In the embodiment, a wireless charging processing method is provided. FIG. 3 is a flowchart of a wireless charging processing method according to an embodiment of the present invention. As shown in FIG. 3, the flow includes the following steps:

Step S302, receiving a signal sent by the terminal;

Step S304, determining, according to the received signal, whether a distance between the detecting module for detecting the signal and the terminal is greater than a predetermined threshold;

Step S306, when the distance between the detecting module and the terminal is greater than a predetermined threshold, the control circuit for controlling the transmitting circuit to transmit the radio energy is turned off.

Through the above steps, adopting a signal sent by the receiving terminal; determining, according to the received signal, whether a distance between the detecting module for detecting the signal and the terminal is greater than a predetermined threshold; and when the distance between the detecting module and the terminal is greater than a predetermined threshold, closing A control circuit for controlling transmission circuitry to transmit radio energy. The method determines whether the control circuit needs to be closed according to the distance between the terminal and the terminal, and avoids the problem that the control circuit is always in the working state, thereby solving the problem that the idle power consumption of the terminal is high when the wireless charging device is used in the related art. In turn, the effect of reducing the no-load consumption is achieved.

In an optional embodiment, when the distance between the detection module and the terminal is less than a predetermined threshold, the trigger control circuit controls the transmitting circuit to transmit radio energy, and the transmitted radio can wirelessly charge the terminal. Thereby, it is realized that only when the terminal is close to the charger including the detecting module, the control circuit is started to complete charging of the terminal, and the no-load consumption is reduced.

Wherein, the trigger control circuit controls the transmitting circuit to transmit the radio energy, and may include a plurality of methods. The preferred manner is to trigger the control function of the control circuit by sending an enable signal to the control circuit, thereby implementing the control circuit to control the transmitting circuit to transmit the radio. Can realize wireless charging of the terminal.

When the distance between the detection module and the terminal is greater than a predetermined threshold, the control circuit needs to be turned off, and the control circuit can be turned off by terminating the transmission of the power signal to the control circuit, thereby reducing the no-load consumption of the control circuit.

In an optional embodiment, the distance between the detecting module and the terminal may be determined by at least one of the following signals, that is, the signal sent by the receiving terminal includes at least one of: receiving a Bluetooth signal sent by the terminal; WIFI signal. Among them, the Bluetooth signal sent by the terminal can be Bluetooth low energy (Bluetooth Low) Energy, referred to as BLE) Bluetooth signal, and the BLE Bluetooth circuit that detects the BLE Bluetooth signal is a very power-consuming circuit.

In the embodiment, a wireless charging processing device is also provided, which is used to implement the above-mentioned embodiments and preferred embodiments, and will not be described again. As used below, the term "module" may implement a combination of software and/or hardware of a predetermined function. Although the apparatus described in the following embodiments is preferably implemented in software, hardware, or a combination of software and hardware, is also possible and contemplated.

4 is a block diagram showing the structure of a wireless charging processing apparatus according to an embodiment of the present invention. As shown in FIG. 4, the apparatus includes a receiving module 42, a determining module 44, and a closing module 46, which will be described below.

The receiving module 42 is configured to receive a signal sent by the terminal, and the determining module 44 is connected to the receiving module 42 and configured to determine, according to the received signal, whether a distance between the detecting module for detecting the signal and the terminal is greater than a predetermined threshold; The module 46 is connected to the above-mentioned judging module 44, and is configured to turn off the control circuit for controlling the transmitting circuit to transmit radio energy when the distance between the tested module and the terminal is greater than a predetermined threshold.

FIG. 5 is a block diagram showing a preferred structure of a wireless charging processing apparatus according to an embodiment of the present invention. As shown in FIG. 5, the apparatus includes a triggering module 52 in addition to all the modules shown in FIG. .

The triggering module 52 is connected to the judging module 44, and is configured to, when the judgment result of the judging module 44 is negative, the trigger control circuit controls the transmitting circuit to transmit radio energy, and wirelessly charges the terminal by using the transmitted radio.

FIG. 6 is a structural block diagram of a trigger module 52 in a wireless charging processing apparatus according to an embodiment of the present invention. As shown in FIG. 6, the triggering module 52 includes a transmitting unit 62 for transmitting an enable signal to the control circuit.

7 is a block diagram showing the structure of a shutdown module 46 in a wireless charging processing apparatus according to an embodiment of the present invention. As shown in FIG. 7, the shutdown module 46 includes a termination unit 72 that is configured to terminate transmission of an enable signal to the control circuit. .

FIG. 8 is a structural block diagram of a receiving module 42 in a wireless charging processing apparatus according to an embodiment of the present invention. As shown in FIG. 8, the receiving module 42 includes a first receiving unit 82 and/or a second receiving unit 84. The receiving module 42 will be described.

The first receiving unit 82 is configured to receive the Bluetooth signal sent by the terminal, and the second receiving unit 84 is configured to receive the WIFI signal sent by the terminal.

9 is a structural block diagram of a wireless charger according to an embodiment of the present invention. As shown in FIG. 9, the wireless charger includes a power interface 22 for connecting a power source, and a transmitting circuit 26 for performing wireless energy transmission for controlling The transmitting circuit 26 transmits the wireless power control circuit 24, and further includes the wireless charging processing device 92 of any of the above, wherein the power supply interface 22, the wireless charging processing device 92, the control circuit 24, and the transmitting circuit 26 are sequentially connected.

In order to solve the problem that the no-load consumption power is large when the wireless charging device is used to charge the terminal, the method and the device for reducing the wireless charging efficiency and the no-load consumption are provided in the embodiment of the present invention, which can conveniently utilize the wireless charging. The function charges the terminal, and at the same time improves the wireless charging efficiency and reduces the no-load consumption when the wireless charging is used. The present invention will be described below by taking the signal of the received terminal as a Bluetooth signal as an example.

The implementation of the wireless charging function in the embodiment of the present invention is still implemented by the following two parts: one is a receiving terminal, and the other is a transmitting end.

The difference from the related art is that the transmitting end is improved in the embodiment of the present invention, and the wireless transmission of the electric energy is completed by the improved transmitting end and receiving terminal.

FIG. 10 is a block diagram showing a structure of a transmitting end according to an embodiment of the present invention. As shown in FIG. 10, the transmitting end includes a power interface 22, a control circuit 24, a transmitting circuit 26, and a BLE Bluetooth circuit 102. The power access circuit 22 is an access point for power and is a source of wireless charging; the control circuit 24 is configured to control whether the transmitting circuit 26 transmits electromagnetic energy to determine whether to perform energy transmission; and the transmitting circuit 26 is configured to perform wireless sensing of the power. Sending; the BLE Bluetooth circuit 104 (same as the wireless charging processing device 92 described above) is configured to detect whether there is a receiving terminal close to the connection, and when the terminal is close, and the distance from the terminal is less than a predetermined threshold, the enabling signal of the output control circuit .

11 is a structural block diagram of a receiving terminal according to an embodiment of the present invention. As shown in FIG. 11, the receiving terminal includes two parts: a wireless charging module 112 and a terminal module 114. The terminal module 114 includes a baseband unit 1141 and a radio frequency unit. 1142, power management 1143, Bluetooth module 1144, battery 1145 and other parts. The Bluetooth module 1144 can be powered directly by the battery.

The method and device for wireless charging provided in the embodiments of the present invention are based on the wireless charging device in the related art, and the BLE Bluetooth circuit is added to further improve the efficiency of wireless charging. The BLE Bluetooth circuit has very low power consumption, and the normal working current is mA level; the intelligent terminals in the related art also have the Bluetooth function, and the distance between the two can be detected through the BLE Bluetooth on the transmitting end and the Bluetooth in the smart terminal. By setting the distance value, when the distance is less than the threshold, it is determined that the smart terminal is placed on the wireless charging transmitting end, and when the distance is greater than the threshold or there is no Bluetooth signal, it is determined that there is no wireless charging receiving terminal on the wireless charging transmitting end. When the BLE Bluetooth circuit detects that there is a receiving terminal access, the output enable signal is sent to the control circuit, and the control circuit starts to work. The control circuit further turns on the wireless transmitting circuit to start wireless transmission of energy; if the receiving terminal is not detected to be close to access, BLE The Bluetooth circuit does not output an enable signal to the control circuit, the control circuit is turned off, and the transmission circuit has no output. Pass In this method, the control circuit and the transmitting circuit only work when there is a receiving terminal close to it, otherwise only the BLE Bluetooth circuit with low power consumption is working, and the control circuit with relatively large power consumption is prevented from working all the time. This reduces transmission loss and improves the efficiency of wireless charging.

In the present invention, low-power Bluetooth is utilized, and other low-power wireless methods, such as low-power WIFI, etc., can also be utilized. The function of the WIFI module in the entire device is similar to that of the above-mentioned Bluetooth, when the WIFI of the transmitting end is used. When the circuit detects that there is a wireless charging receiving terminal externally, the wireless charging transmission short circuit is turned on; if the wireless charging receiving terminal is not detected, the WIFI module does not output an enable signal, and the transmitting circuit does not work. The following uses Bluetooth as an example to describe the wireless charging process.

FIG. 12 is a flowchart of wireless charging according to an embodiment of the present invention. As shown in FIG. 12, the wireless charging process includes the following steps:

Step S1202, the power source is connected to the power interface of the sending end;

Step S1204, the BLE Bluetooth circuit works;

Step S1206, BLE Bluetooth circuit detects whether there is a receiving terminal access, if there is step S1208, otherwise looping to step S1206;

Step S1208, the BLE Bluetooth circuit outputs an enable signal to enable the control circuit;

In step S1210, the enabling circuit turns on the transmitting circuit to perform wireless transmission of the electrical energy.

The above process can be specifically described as follows: the power supply is connected to the access interface of the transmitting end, the BLE Bluetooth circuit starts to work, and the BLE Bluetooth circuit starts to measure whether there is a receiving terminal close to. When detecting that the receiving terminal is close to the transmitting end, the detection circuit output is enabled. The signal is sent to the control circuit. After the control circuit receives the enable signal, the control circuit starts to work. The control circuit then turns on the transmission circuit, and sends the power to the receiving terminal through the transmitting circuit to complete the transmission of the power, and the wireless charging starts. If the detecting circuit does not detect the receiving. The terminal is close, the detection circuit is cyclically detected, the output is not enabled, the control circuit is not working, and wireless transmission of energy is not performed. The detection principle of the BLE Bluetooth circuit is to use the distance between the Bluetooth in the transmitting end and the Bluetooth calculation in the smart terminal. By setting the distance value, when the distance is less than the threshold, it is determined that the smart terminal is placed on the wireless charging transmitting end. When the distance is greater than the threshold or there is no Bluetooth signal, it is determined that there is no wireless charging receiving terminal on the wireless charging transmitting end. The receiving terminal module has a Bluetooth module, which can be directly powered by the battery, and performs distance detection with the BLE Bluetooth module in the wireless charging transmitting end.

The invention can use other low-power inspection modules, such as low-power WIFI and other methods, as an inspection circuit, control the operation and shutdown of the wireless charging transmission circuit, and reduce the wireless charging no-load consumption.

Through the above steps, the control circuit can be effectively prevented from working all the time, thereby improving the wireless transmission efficiency.

It will be apparent to those skilled in the art that the various modules or steps of the present invention described above can be implemented by a general-purpose computing device that can be centralized on a single computing device or distributed across a network of multiple computing devices. Alternatively, they may be implemented by program code executable by the computing device such that they may be stored in the storage device by the computing device and, in some cases, may be different from the order herein. The steps shown or described are performed, or they are separately fabricated into individual integrated circuit modules, or a plurality of modules or steps thereof are fabricated as a single integrated circuit module. Thus, the invention is not limited to any specific combination of hardware and software.

The above description is only the preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes can be made to the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and scope of the present invention are intended to be included within the scope of the present invention.

Industrial applicability

As described above, the wireless charging processing method and apparatus and the wireless charger provided by the embodiments of the present invention have the following beneficial effects: solving the problem that the no-load power consumption is large when the wireless charging device is used to charge the terminal in the related art. In turn, the effect of reducing the no-load consumption is achieved.

Claims

A wireless charging processing method includes:

Receiving a signal from the terminal;

Determining, according to the received signal, whether a distance between the detecting module for detecting the signal and the terminal is greater than a predetermined threshold;

When the distance between the detection module and the terminal is greater than the predetermined threshold, the control circuit for controlling the transmission circuit to transmit radio energy is turned off.
The method of claim 1 further comprising:

When the distance between the detection module and the terminal is less than the predetermined threshold, the trigger control circuit controls the transmitting circuit to transmit radio energy, and the terminal can be wirelessly charged by using the transmitted radio.
The method of claim 2 wherein the triggering control circuit controls the transmitting circuit to transmit the radio energy comprising:

An enable signal is sent to the control circuit.
The method of claim 1 wherein turning off the control circuit comprises:

Terminating the transmission of an enable signal to the control circuit.
The method of claim 1 wherein receiving the signal issued by the terminal comprises at least one of:

Receiving a Bluetooth signal sent by the terminal;

Receiving a WIFI signal sent by the terminal.
A wireless charging processing device includes:

a receiving module, configured to receive a signal sent by the terminal;

a determining module, configured to determine, according to the received signal, whether a distance between the detecting module for detecting the signal and the terminal is greater than a predetermined threshold;

And closing the module, configured to: when the distance between the detection module and the terminal is greater than the predetermined threshold, turn off a control circuit for controlling transmission circuitry to transmit radio energy.
The apparatus of claim 6 further comprising:

And a triggering module, configured to: when the distance between the detecting module and the terminal is less than the predetermined threshold, the trigger control circuit controls the transmitting circuit to transmit radio energy, and the terminal can be wirelessly charged by using the transmitted radio.
The apparatus of claim 7, wherein the triggering module comprises:

A transmitting unit is configured to send an enable signal to the control circuit.
The apparatus of claim 6 wherein said shutdown module comprises:

The terminating unit is configured to terminate transmitting an enable signal to the control circuit.
The apparatus of claim 6, wherein the receiving module comprises at least one of:

a first receiving unit, configured to receive a Bluetooth signal sent by the terminal;

The second receiving unit is configured to receive the WIFI signal sent by the terminal.
A wireless charger comprising a power interface for connecting to a power source, a transmitting circuit for performing wireless energy transmission, a control circuit for controlling the transmitting circuit to transmit wireless power, and characterized in that it further comprises claims 6 to 10. The wireless charging processing device according to any one of the preceding claims, wherein the power supply interface, the wireless charging processing device, the control circuit, and the transmitting circuit are sequentially connected.