CN103094965B - The method of attachment of wireless charging and wireless device - Google Patents

Abstract

The present invention is applicable to the communication field, and provides a wireless charging connection method for wireless devices. The method includes the following steps: at least one wireless device establishes communication with at least one wireless charger through a short-distance communication protocol; the communication The content includes charging status information and charging instructions. The wireless device charging method, the wireless device and the charger provided by the present invention save costs while realizing wireless charging.

Description

Connection method and wireless device for wireless charging

technical field

The invention belongs to the communication field, and in particular relates to a wireless charging connection method and a wireless device.

Background technique

With the development of the information industry and the popularization of mobile terminals, wireless charging of mobile terminals has been widely used. The concept of wireless charging refers to a device or device with a built-in battery that obtains power through wireless induction for charging. This technology is derived from wireless power transmission technology, and its working principle uses electromagnetic induction, that is, when the current passes through the coil, a magnetic field is generated to form a voltage, and after the voltage is generated, a current is generated for charging. However, the current problem with this technology is that there is no uniform specification standard in the industry, so mobile terminals that support this technology may not be able to use all wireless charging stations. The charging principle is an electromagnetic coupling with a non-fixed coupling coefficient. , in order to ensure the safety of the charging current and the charger, communication between the charger and the charger is required. At present, the communication between the wireless charging charger and the charger in the industry adopts near-field communication, so a near-field communication circuit must be added to each mobile terminal to be charged. This not only increases the product cost, but also brings inconvenience to the miniaturization design industry of portable products.

Contents of the invention

The purpose of the embodiments of the present invention is to provide a wireless charging connection method and a wireless device, aiming to solve the problem of high cost caused by adding a near-field communication circuit when wireless charging is performed on an existing mobile terminal.

The present invention proposes a connection method for wireless charging, which is used for wireless devices, and the method includes the following steps:

At least one wireless device establishes communication with at least one wireless charger through a short-distance communication protocol; the communication content includes charging status information and charging instructions.

Further, the short-distance communication protocol is Bluetooth protocol, infrared transmission protocol or Wi-Fi data protocol.

further,

The wireless device is a charged mobile terminal, and the wireless charger only establishes communication with the charged mobile terminal; or

The wireless device is a mobile terminal to be charged, and the wireless charger only establishes communication with the mobile terminal to be charged; or

The wireless device includes a mobile terminal to be charged and a mobile terminal to be charged, and the wireless charger establishes communication with the mobile terminal to be charged and the mobile terminal to be charged simultaneously.

Further, the wireless device includes an energy receiving module and a first short-distance communication module, the energy receiving module is used to receive the energy transmitted by the wireless charger, and the first short-distance communication module is used to realize communication between the wireless device and the wireless charger Communication, the communication content includes charging status information and charging instructions.

further,

The wireless charger includes an energy sending module and a second short-range communication module, the energy sending module is used to send energy to the wireless device, the second short-range communication module is used to realize the communication between the wireless device and the wireless charger, and the communication content Including charging status information and charging instructions.

The present invention also proposes a wireless device, including:

The first short-range communication module is configured to establish communication with at least one wireless charger through a short-range communication protocol; the communication content includes charging status information and charging instructions.

Further, the first short-range communication module includes:

A search unit is used to search for wireless chargers within the communication range;

The acquiring information unit is configured to acquire charging status information of the wireless charger after the wireless charger is found.

Further, the first short-range communication module also includes:

The command unit is used to send a charging command to the wireless charger.

Further, the short-distance communication protocol is Bluetooth protocol, infrared transmission protocol or Wi-Fi data protocol.

In the embodiment of the present invention, the short-range communication protocol is used to wirelessly charge the wireless device. Unlike near-field communication, short-range communication is low-power signal communication, and its communication distance is far greater than that of near-field communication. The communication distance is generally within 100 meters, while the communication distance of near field communication is only about 10 centimeters. Since the wireless device being charged does not need to add additional near-field communication circuits, it can use the communication module it already has, which is lower in cost than the existing three major wireless charging protocols. Furthermore, the embodiment of the present invention realizes intelligent wireless charging, and the wireless device to be charged is within the range of communication distance, so that it is convenient to find information such as the model, location, and current status of the wireless charger.

Description of drawings

Fig. 1 is a system architecture diagram of an embodiment of the present invention;

FIG. 2 is a flowchart of a wireless charging connection method according to Embodiment 1 of the present invention;

Fig. 3 is a circuit diagram of charging in the wireless charging connection method of Embodiment 1 of the present invention;

Fig. 4 is a structural diagram of Example 2 in the wireless charging connection method of Embodiment 1 of the present invention;

FIG. 5 is a structural diagram of a wireless device according to Embodiment 2 of the present invention;

6 is a structural diagram of a first short-distance communication module in a wireless device according to Embodiment 2 of the present invention;

FIG. 7 is a flowchart of a connection method for wireless charging of a mobile terminal according to Embodiment 3 of the present invention;

FIG. 8 is a structural diagram of a wireless charger according to Embodiment 4 of the present invention.

detailed description

In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

Fig. 1 shows an application scenario of an embodiment of the present invention, including at least one wireless charger and at least one wireless device to be charged, and the wireless device may be a mobile terminal with a rechargeable battery such as a mobile phone.

Referring to Fig. 2, Fig. 2 shows a wireless charging connection method according to an embodiment of the present invention, which is used for wireless devices, and the method includes:

Step S101, when the wireless device needs to be charged (at this time, the wireless device is a mobile terminal to be charged), automatically search for a wireless charger within the communication range through the Bluetooth, infrared, Wi-Fi and other short-distance communication methods carried by the user. When the wireless device finds a wireless charger, it prompts the wireless charger that the wireless device has found. When multiple wireless chargers are found, it prompts the idle wireless charger with the nearest or strongest signal for the wireless device, or for the user to choose One of the.

Step S102, the wireless device establishes communication with the above-mentioned wireless charger through the short-range communication protocol, and the communication content is mainly charging management information, including charging status information and charging instructions.

There are two connection modes between the wireless device and the wireless charger, one is for data interaction, which is called connection mode 1 in the present invention, such as the exchange of various charging management information between the wireless device and the wireless charger, the wireless device Through connection method 1, you can know the charging status information of the wireless charger, whether it is idle or not, and send various charging commands to the wireless charger. The connection mode 1 is also completed through the first short-distance communication module that comes with wireless devices such as Bluetooth, infrared, and Wi-Fi. The wireless connection in this step refers to connection method 1. The other is used for wireless charging, which we call connection method 2. The wireless device obtains power from the wireless charger through the connection method 2. The connection method 2 can be completed by means of electromagnetic induction through the energy receiving module of the wireless device.

Step S103, the wireless device approaches the wireless charger, and the two establish a connection mode 2, the wireless device receives power from the wireless charger, and charges its own battery (the wireless device is a mobile terminal to be charged at this time). According to the charging request of the wireless device, the wireless charger turns on the built-in or external energy transmitter to send power to the wireless device, and the energy receiver of the wireless device receives the power and charges the battery of the wireless device. The wireless device can detect the magnitude of the charging current in real time, and send instructions to the wireless charger through connection mode 1, requesting to increase or decrease the power transmission power.

Referring to FIG. 3 , the connection mode 2 of the embodiment of the present invention can be realized by the circuit shown in FIG. 3 . The circuit shown in FIG. 3 is charged by electromagnetic induction, specifically: a receiving coil 103 is provided on the surface of the wireless device, and the two ends of the receiving coil 103 are respectively connected to the rectifier circuit 102 , and the wireless charger is correspondingly provided with a transmitting coil 203 . When the receiving coil 103 is close to the transmitting coil 203, the receiving coil 103 receives the induced AC power emitted by the wireless charger, and then the rectifying circuit 102 converts it into DC power to supply power to the wireless device.

In order to describe the working principle of the embodiment of the present invention in detail, two examples are used to illustrate:

Example 1: Referring to Figure 1, within the wireless coverage area, there are two wireless chargers A and B, and there are three wireless devices A, B and C, wireless device C is being charged by wireless charger B, and wireless devices B and A To charge, wireless device C uses connection method 2 of the present invention to charge, wireless devices B and A use connection method 1 of the present invention to communicate with wireless chargers A and B, and understand the current resource utilization of wireless chargers A and B .

Example 2: Referring to Figure 4, wireless charger A and wireless device A are charging, wireless device B and wireless device C also search for wireless charger A within the coverage of Bluetooth and other short-distance communication, wireless device B through the connection 1. Communicate with wireless charger A, know that wireless charger A is in use, and know how long wireless device A is expected to be able to charge. There is also a wireless device C waiting to be charged by wireless charger A. The wireless device C also obtains the information through the above-mentioned method.

In the embodiment of the present invention, the wireless device to be charged does not need to add an additional near-field communication circuit, but only needs to use an existing communication module, which saves costs. Moreover, the wireless device being charged is within the range of communication distance, so it is convenient to find information such as the model, location and current status of the wireless charger, realizing the intelligentization of wireless charging.

Referring to FIG. 5, a wireless device according to Embodiment 2 of the present invention is proposed, and the wireless device includes:

The first short-range communication module 51 is configured to establish communication with at least one wireless charger through a short-range communication protocol; the communication content includes charging status information and charging instructions.

Referring to Figure 6, the first short-range communication module 51 includes:

A search unit 511, configured to search for wireless chargers within the communication range;

An acquiring unit 512, configured to acquire charging status information of the wireless charger when the wireless charger is found;

The instruction unit 513 is configured to send a charging instruction to one of the wireless chargers.

When the wireless device needs to be charged, the search unit 511 of the first short-range communication module 51 automatically searches for wireless chargers within the communication range through short-range communication. The first short-range communication module 51 can be a Bluetooth module carried by the wireless device itself, Short-range communication modules such as infrared modules or Wi-Fi modules.

When the search unit 511 finds a wireless charger, it prompts the wireless charger that has been searched, and when multiple wireless chargers are found, it prompts the idle wireless charger with the closest or strongest signal for the wireless device, or allows the user to choose one of them One.

The acquisition unit 512 sends a charging request to the searched wireless charger, and acquires the charging status information of the wireless charger. The charging status information mentioned above is status information such as whether the wireless charger is idle or not, and the power level.

There are two connection methods between the wireless device and the wireless charger, one is for data interaction, we call it connection method 1, such as the exchange of various charging management information between the wireless device and the wireless charger, the wireless device can Through connection method 1, you can know the charging status information of the wireless charger, such as whether it is idle or not, and send various charging commands to the wireless charger. The connection mode 1 is completed through the first short-range communication module 51 . The other is used for wireless charging, which we call connection method 2. Through connection method 2, wireless devices can obtain power from wireless chargers. Connection method 2 can be electromagnetic induction and other methods.

The wireless device is close to the wireless charger, and the two establish a connection mode 2. The wireless device receives power from the wireless charger to charge the battery of the wireless device. The wireless device can detect the magnitude of the charging current in real time, and send an instruction to the wireless charger through the instruction unit 513, requesting to increase or decrease the electric energy transmission power.

In the second embodiment of the present invention, the wireless device does not need to add an additional near-field communication circuit, and only needs to use the communication module it already has, which saves costs. And the wireless device is within the range of communication distance, it is convenient to find information such as the model, location and current status of the wireless charger, realizing the intelligentization of wireless charging.

Referring to Fig. 7, a wireless charging connection method according to Embodiment 3 of the present invention is proposed, which is used for a wireless charger, and the method includes:

Step S601 , when one or more wireless devices need to be charged, automatically search for wireless chargers within the communication range through the short-range communication methods such as Bluetooth, infrared, and Wi-Fi carried by the device itself. When the wireless charger is simultaneously searched by one or more wireless devices, it will feed back its own charging status, such as charging status information such as whether it is idle or not, to the one or more wireless devices.

There are two connection methods between wireless devices and wireless chargers, one is for data interaction, we call it connection method 1, such as the exchange of various charging management information between wireless devices and wireless chargers, wireless chargers It can send charging status information such as battery power and whether it is idle to the wireless device through connection method 1, and receive various charging instructions sent by the wireless device. Connection mode 1 is also completed through the wireless communication module that comes with wireless devices such as Bluetooth, infrared, and Wi-Fi. The wireless connection in this step refers to connection method 1. The other is used for wireless charging, which we call connection method 2. The wireless charger sends power to the wireless device through the connection method 2. The connection method 2 can be completed by electromagnetic induction and other methods.

Step S602, one or more wireless devices approach the wireless charger, and establish a connection mode 2 with the wireless charger, and the wireless charger sends power to the one or more wireless devices for the wireless devices to charge their own batteries. According to the charging request of the wireless device, the wireless charger turns on the built-in or external energy transmitter to send power to the wireless device, and the energy receiver of the wireless device receives the power and charges the battery of the wireless device. The wireless device can detect the magnitude of the charging current in real time, and send instructions to the wireless charger through the connection mode 1, and the wireless charger increases or decreases the power transmission power according to the instructions.

In the third embodiment of the present invention, the wireless charger only needs to add a short-distance communication module to communicate with the wireless device to be charged. Within the range of communication distance, it can conveniently send charging status information, realizing the intelligentization of wireless charging.

Referring to Figure 8, a wireless charger according to Embodiment 4 of the present invention is proposed, including:

The second short-range communication module 71 is configured to establish communication with at least one wireless device through a short-range communication protocol; the communication content includes charging status information and charging instructions.

When one or more wireless devices need to be charged, they will automatically search for wireless chargers within the communication range through the Bluetooth, infrared, Wi-Fi and other short-distance communication methods carried by themselves. When the wireless charger is found by one or more wireless devices, the second short-range communication module 71 of the wireless charger establishes communication with the one or more wireless devices through a short-range communication protocol.

There are two connection modes between the wireless device and the second short-distance communication module 71, one is used for data interaction, we call it connection mode 1, such as the exchange of various charging management information between the wireless device and the wireless charger , the second short-distance communication module 71 can send charging status information such as battery power and whether it is idle to the wireless device through the connection mode 1, and receive various charging instructions sent by the wireless device. The second short-distance communication module 71 can be completed by a wireless communication module provided by wireless devices such as a Bluetooth module, an infrared module, and a Wi-Fi module. The other is used for wireless charging, which we call connection method 2. The wireless charger sends power to the wireless device through the connection method 2. The connection method 2 can be electromagnetic induction and other methods.

When one or more wireless devices are close to the wireless charger and establish a connection with the wireless charger 2, the wireless charger sends power to the wireless devices for the wireless devices to charge their own batteries. The wireless device can detect the magnitude of the charging current in real time, and send charging instructions to the second short-range communication module 71 through connection mode 1, so that the wireless charger can increase or decrease the power transmission power according to the instructions received by the second short-distance communication module 71 .

In Embodiment 4 of the present invention, the wireless charger only needs to add a short-distance communication module to communicate with the wireless device to be charged. Within the range of communication distance, it can conveniently send charging status information, realizing intelligent wireless charging.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the protection of the present invention. within range.

Claims (9)

1. A wireless charging connection method for wireless devices, characterized in that the method comprises the following steps: Search for wireless chargers within the communication range; At least one wireless device establishes communication with at least one wireless charger through a short-distance communication protocol; the communication content includes charging status information and charging instructions, and the charging instructions include increasing or decreasing the power transmission of the wireless charger command of power; When the wireless device that has established communication according to the connection method 1 approaches the wireless charger, the wireless device and the wireless charger establish a connection according to the connection method 2, so as to receive power from a wireless charger to charge its own battery . 2. The method according to claim 1, wherein the short-distance communication protocol is a Bluetooth protocol, an infrared transmission protocol or a Wi-Fi data protocol. 3. The method of claim 1, wherein, The wireless device is a charged mobile terminal, and the wireless charger only establishes communication with the charged mobile terminal; or The wireless device is a mobile terminal to be charged, and the wireless charger only establishes communication with the mobile terminal to be charged; or The wireless device includes a mobile terminal to be charged and a mobile terminal to be charged, and the wireless charger establishes communication with the mobile terminal to be charged and the mobile terminal to be charged simultaneously. 4. The method according to claim 1, wherein the wireless device comprises an energy receiving module and a first short-range communication module, the energy receiving module is used to receive the energy transmitted by the wireless charger, and the first short-range communication module It is used to realize the communication between the wireless device and the wireless charger, and the communication content includes charging status information and charging instructions. 5. The method of claim 1, wherein, The wireless charger includes an energy sending module and a second short-range communication module, the energy sending module is used to send energy to the wireless device, the second short-range communication module is used to realize the communication between the wireless device and the wireless charger, and the communication content Including charging status information and charging instructions. 6. A wireless device, characterized in that it comprises: Search unit; used to search for wireless chargers within the communication range; The first short-range communication module is used to establish communication with at least one wireless charger through a short-range communication protocol according to connection mode one; the communication content includes charging status information and charging instructions, and the charging instructions include increasing or decreasing the wireless charger. Instructions for the electric energy transmission power of the charger; A charging unit, configured to establish a connection between the wireless device and the wireless charger according to the second connection method when the wireless device that has established communication according to the connection method 1 is close to the wireless charger, so as to receive electric energy from a wireless charger, Charge its own battery. 7. The wireless device according to claim 6, wherein the first short-distance communication module comprises: a search unit, configured to search for wireless chargers within the communication range; The acquiring information unit is configured to acquire charging state information of the wireless charger after the wireless charger is found. 8. The wireless device according to claim 7, wherein the first short-range communication module further comprises: The command unit is used to send a charging command to the wireless charger. 9. The wireless device according to claim 7, wherein the short-distance communication protocol is a Bluetooth protocol, an infrared transmission protocol or a Wi-Fi data protocol.