CN115719994A - Wireless power supply method and system - Google Patents
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Abstract
The present invention relates to the field of wireless power supply technologies, and in particular, to a wireless power supply method and system. A method of wirelessly powering, the method comprising: sending a detection signal of the device to be charged and receiving feedback information, if the feedback information shows that the device to be charged does not exist, keeping a standby state, and if the feedback information shows that the device to be charged exists, wirelessly charging the device to be charged by using first output power. According to the invention, the output power of the charging end is adjusted by acquiring the charging speed and the equipment temperature of the equipment to be charged, the output power of the charging end is properly improved when the charging speed of the equipment to be charged is lower, and the equipment temperature of the equipment to be charged is adjusted, so that the influence on the service life of the equipment to be charged caused by the fact that the output power of the charging end is not suitable for wirelessly charging the equipment to be charged is prevented.
Description
Technical Field
The present invention relates to the field of wireless power supply technologies, and in particular, to a wireless power supply method and system.
Background
The wireless power supply system adopts a wireless power transmission technology and carries out wireless charging on the electronic equipment based on an inductive coupling charging principle. Compared with the traditional wired charging method, the wireless charging method does not need to connect the power supply with the equipment to be charged by using a wire, and great convenience can be brought to people by using a wireless charging technology.
However, in the prior art, in the process of charging the device to be charged by using the wireless charging technology, the management of the wireless power supply system is insufficient, and the output power of the wireless power supply system cannot be reasonably adjusted according to the actual state data of the device to be charged, so that the service life of the device to be charged is influenced to a certain extent.
Disclosure of Invention
In view of this, the present application provides a wireless power supply method and system, which reasonably adjust the output power of a wireless power supply system according to the actual state data of a device to be charged in the process of wirelessly charging the device to be charged, so as to solve the problems in the prior art.
To achieve the above object, in one aspect, the present application provides a wireless power supply method, including:
sending a detection signal of the equipment to be charged and receiving feedback information, if the feedback information shows that the equipment to be charged does not exist, keeping a standby state, and if the feedback information shows that the equipment to be charged exists, wirelessly charging the equipment to be charged by using first output power;
in the process of wirelessly charging the device to be charged by using the first output power, acquiring the charging speed of the device to be charged, judging whether the charging speed is greater than a first preset charging speed, if so, continuing to wirelessly charge the device to be charged by using the first output power, otherwise, replacing the first output power provided for the device to be charged with a second output power, and wirelessly charging the device to be charged by using the second output power;
after the first output power provided for the equipment to be charged is changed into the second output power, periodically acquiring the equipment temperature of the equipment to be charged, judging whether the equipment temperature is lower than a first preset temperature, if so, continuing to wirelessly charge the equipment to be charged by using the second output power, otherwise, changing the second output power provided for the equipment to be charged into the first output power again, and wirelessly charging the equipment to be charged by using the first output power;
the first output power is less than the second output power.
Further, before the first output power supplied to the device to be charged is replaced with the second output power, the method further includes:
and obtaining the current equipment temperature of the equipment to be charged, judging whether the current equipment temperature is lower than the first preset temperature, if so, replacing the first output power provided for the equipment to be charged with the second output power, and if not, continuing to wirelessly charge the equipment to be charged with the first output power.
Further, the wireless charging process of the device to be charged with the first output power further includes:
periodically acquiring the equipment temperature of the equipment to be charged, judging whether the equipment temperature is lower than the first preset temperature or not, if so, continuing to wirelessly charge the equipment to be charged by using the first output power, otherwise, replacing the first output power provided for the equipment to be charged with a third output power, and wirelessly charging the equipment to be charged by using the third output power;
the third output power is less than the first output power.
Further, in the process of wirelessly charging the device to be charged with the first output power, the method further includes:
acquiring the residual electric quantity of the equipment to be charged, acquiring the charging speed of the equipment to be charged for the equipment to be charged with the residual electric quantity smaller than the preset electric quantity, judging whether the charging speed is larger than a first preset charging speed, and if so, continuing to charge the equipment to be charged wirelessly by using the first output power;
otherwise, monitoring the temperature change state of the equipment to be charged within a preset time length, and judging whether the highest temperature of the equipment to be charged within the preset time length is less than a second preset temperature or not;
if so, wirelessly charging the equipment to be charged by using the second output power, otherwise, continuously wirelessly charging the equipment to be charged by using the first output power;
the method comprises the steps of obtaining the residual electric quantity of the equipment to be charged periodically after the second output power is used for wirelessly charging the equipment to be charged, obtaining the equipment temperature of the equipment to be charged when the residual electric quantity is larger than or equal to the emergency electric quantity, and replacing the second output power provided for the equipment to be charged with the first output power again if the equipment temperature is larger than the first preset temperature.
Further, in the process of wirelessly charging the device to be charged with the second output power, the method further includes:
periodically acquiring the equipment temperature of the equipment to be charged, calculating the difference value between the equipment temperature and the second preset temperature after acquiring the equipment temperature each time, and judging whether the difference value is greater than a preset safety threshold value or not;
if so, continuing to wirelessly charge the equipment to be charged by using the second output power, periodically acquiring the residual electric quantity of the equipment to be charged, and replacing the second output power provided for the equipment to be charged with the first output power again after the residual electric quantity is greater than or equal to the emergency electric quantity;
otherwise, directly replacing the second output power provided for the equipment to be charged with the first output power.
Further, still include:
and in the process of wirelessly charging the equipment to be charged by using the first output power or the second output power, acquiring the residual capacity proportion of the equipment to be charged, and when the residual capacity proportion is larger than a preset safety proportion, replacing the first output power or the second output power provided for the equipment to be charged with the third output power.
Further, still include:
and when the residual electric quantity proportion is larger than the preset safety proportion, sending out an electric quantity sufficiency prompt.
In another aspect, the present invention provides a wireless power supply system, where the system uses the wireless power supply method of the present invention, and the system includes:
the power supply module is used for wirelessly charging the equipment to be charged;
the information acquisition module is used for acquiring the charging speed and the equipment temperature of the equipment to be charged;
the output regulation and control module is used for regulating the output power of the power supply module according to the charging speed and the equipment temperature of the equipment to be charged;
and the reminding module is used for sending out a sufficient electric quantity reminding.
The invention has the following advantages:
1. according to the invention, the output power of the charging end is adjusted by acquiring the charging speed and the equipment temperature of the equipment to be charged, the output power of the charging end is properly improved when the charging speed of the equipment to be charged is lower, and the equipment temperature of the equipment to be charged is adjusted, so that the influence on the service life of the equipment to be charged caused by the fact that the output power of the charging end is not suitable for wirelessly charging the equipment to be charged is prevented.
2. According to the method and the device, the residual electric quantity of the equipment to be charged is obtained, and when the residual electric quantity of the equipment to be charged is very low, the output power of the charging end is improved in a short time, so that the electric quantity of the equipment to be charged is increased in a short time, a user can use the equipment to be charged more conveniently, and the user experience is improved.
3. According to the invention, the temperature of the equipment to be charged is monitored by increasing the output power of the charging terminal in a short time, and when the temperature of the equipment to be charged is higher, the output power of the charging terminal is reduced, so that the service life of the equipment to be charged is prevented from being greatly influenced due to overhigh temperature.
4. According to the invention, by acquiring the residual electric quantity of the equipment to be charged, the output power of the charging end is reduced when the electric quantity of the equipment to be charged is quickly full, the time for fully charging the electric quantity of the equipment to be charged is prolonged, a user can conveniently take the equipment out when the electric quantity of the equipment to be charged is not fully charged, and a reminding message is sent when the electric quantity of the equipment to be charged is quickly full, so that the condition that the equipment to be charged is fully charged is further avoided, and the condition that the service life of the equipment is influenced because the equipment is continuously charged under the condition that the electric quantity is fully charged is prevented.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
Fig. 1 is a flowchart illustrating a wireless power supply method according to an embodiment of the present invention.
Fig. 2 is a schematic structural diagram of a wireless power supply system according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more clearly understood, some embodiments of the present application will be described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application. However, it will be appreciated by those of ordinary skill in the art that in various embodiments of the application, numerous technical details are set forth in order to provide a better understanding of the application. However, the technical solution claimed in the present application can be implemented without these technical details and various changes and modifications based on the following embodiments.
Example 1
Referring to fig. 1, embodiment 1 of the present invention provides a wireless power supply method, including:
s1, sending a detection signal of a device to be charged and receiving feedback information;
specifically, in this step, the device-to-be-charged detection signal may be issued periodically.
S2, judging whether the feedback information shows that the equipment to be charged exists or not, if the feedback information shows that the equipment to be charged exists, turning to the step S3, and if the feedback information shows that the equipment to be charged does not exist, keeping the standby state and turning to the step S1;
and S3, wirelessly charging the equipment to be charged by using the first output power.
For the transmitting end, after the transmitting end is started, a detection signal for the receiving end is periodically sent, after the detection signal for the receiving end is sent at any time, if the obtained feedback information shows that the receiving end does not exist, the transmitting end is controlled to keep a standby state, the detection signal for the receiving end is sent again after the current period is finished, and after the feedback information shows that the receiving end exists, the transmitting end is controlled to wirelessly charge the device to be charged by taking the first output power as the detected device to be charged.
In an optional implementation, in the process of wirelessly charging the device to be charged with the first output power, the method further includes:
acquiring the charging speed of the equipment to be charged, wherein the charging speed is specifically the electric quantity increasing speed, and judging whether the charging speed is greater than a first preset charging speed or not;
if the first output power is greater than the first output power, the first output power is used for charging the device to be charged wirelessly, otherwise, the output power of the transmitting terminal is adjusted, the first output power provided for the device to be charged is replaced by a second output power, and the second output power is used for charging the device to be charged wirelessly.
Specifically, in this embodiment, the output power provided to the device to be charged is adjusted according to the charging speed of the device, the power amount increase speed may be different for different types of devices under the same output power, and the output power provided to some devices with slower power amount increase speed may be increased reasonably.
In an alternative embodiment, after the first output power provided to the device to be charged is replaced by the second output power, the method further includes:
periodically acquiring the equipment temperature of equipment to be charged, and judging whether the equipment temperature is less than a first preset temperature or not;
and if so, continuing to wirelessly charge the equipment to be charged by using the second output power, otherwise, adjusting the output power provided for the equipment to be charged, recovering the second output power to the first output power, and wirelessly charging the equipment to be charged by using the first output power.
Specifically, different devices have different internal structures, and the 'iron loss' or 'magnetic loss' generated inside the devices are different, so that the heating conditions in the charging process are different, and when the devices are charged by output power higher than the standard output power of the transmitting terminal, a relatively serious heating phenomenon may be generated, so that the output power of the transmitting terminal is adjusted according to the actual heating condition in the charging process, and a good protection effect can be achieved.
In an alternative embodiment, before the step of replacing the first output power provided to the device to be charged with the second output power, the method further comprises:
acquiring the current equipment temperature of equipment to be charged, and judging whether the current equipment temperature is less than a first preset temperature or not;
if so, replacing the first output power provided for the equipment to be charged with the second output power, otherwise, continuing to wirelessly charge the equipment to be charged with the first output power.
Specifically, in the charging process, the charging time period of the device to be charged can be further shortened under the condition that the heat generation of the device is not serious, regardless of the increasing speed of the electric quantity of the device to be charged.
In an optional implementation, the method further includes, for the wireless charging of the device to be charged with the first output power, that:
the method comprises the steps of periodically obtaining the equipment temperature of equipment to be charged, judging whether the equipment temperature is lower than a first preset temperature, if so, continuing to wirelessly charge the equipment to be charged by using first output power, otherwise, replacing the first output power provided for the equipment to be charged by using third output power, and wirelessly charging the equipment to be charged by using the third output power, wherein the third output power is lower than the first output power.
Specifically, similarly, different devices have different internal structures, and different "iron loss" or "magnetic loss" is generated inside the devices, which causes different heat generation conditions during charging, so that the devices may have higher temperatures during wireless charging with the standard output power of the transmitting end, and thus, the output power supplied to the devices needs to be further reduced.
In an optional implementation, the method further includes, for the wireless charging of the device to be charged with the first output power, that:
acquiring the residual electric quantity of equipment to be charged, acquiring the charging speed of the equipment to be charged for the equipment to be charged with the residual electric quantity smaller than the preset electric quantity, judging whether the charging speed is larger than a first preset charging speed, if so, maintaining the output power of a transmitting terminal unchanged, and continuously performing wireless charging on the equipment to be charged with the first output power;
otherwise, monitoring the temperature change state of the equipment to be charged within a preset time length, and judging whether the highest temperature of the equipment to be charged within the preset time length is less than a second preset temperature, wherein the second preset temperature is higher than the first preset temperature;
if so, adjusting the output power of the transmitting terminal, and wirelessly charging the device to be charged by using the second output power, otherwise, continuously wirelessly charging the device to be charged by using the first output power.
Specifically speaking, when carrying out wireless charging to the very low equipment of residual capacity with first output power, if the speed of charging is slower, in order to increase the electric quantity of this equipment in the short time to the user can in time use this equipment, can increase the output of transmitting terminal, temporarily does not consider the change of equipment temperature, and is more convenient when the user promptly needs to use this equipment, promotes and uses experience.
Furthermore, after the second output power is used for wirelessly charging the device to be charged, the remaining capacity of the device to be charged can be periodically acquired, when the remaining capacity is greater than or equal to the emergency capacity, the device temperature of the device to be charged is acquired, and if the device temperature is greater than the first preset temperature, the output power of the transmitting terminal is adjusted, and the second output power provided for the device to be charged is replaced by the first output power again.
Particularly, after the electric quantity of equipment resumes emergent electric quantity, can adjust the output of transmitting terminal according to the temperature of equipment, prevent to receive the influence because of the higher life-span that leads to equipment of the temperature of equipment.
In an optional implementation, in the process of wirelessly charging the device to be charged with the second output power, the method further includes:
periodically acquiring the equipment temperature of the equipment to be charged, calculating the difference value between the equipment temperature and a second preset temperature after the equipment temperature is acquired every time, and judging whether the difference value is greater than a preset safety threshold value or not;
if so, maintaining the output power of the transmitting terminal unchanged, continuously and wirelessly charging the equipment to be charged by using the second output power, periodically acquiring the residual electric quantity of the equipment to be charged, and when the residual electric quantity is greater than or equal to the emergency electric quantity, adjusting the output power of the transmitting terminal and replacing the second output power provided for the equipment to be charged with the first output power again;
otherwise, the second output power provided for the device to be charged is directly replaced by the first output power.
Specifically, in the process of charging the device with very low electric quantity by using the second output power, the temperature of the device can be monitored, the difference between the temperature of the device and the second preset temperature is calculated, the output power of the transmitting terminal is adjusted according to the relation between the difference between the temperature of the device and the second preset temperature and a preset safety threshold, the preset safety threshold is used for measuring the danger degree of the device, and after the temperature of the device is too high, the service life of the device can be greatly influenced, so that the charging speed can be properly reduced to play a role in protecting the service life of the device.
In an alternative embodiment, further comprising:
the method comprises the steps that in the process of wirelessly charging the device to be charged by using first output power or second output power, the proportion of the residual electric quantity of the device to be charged is obtained, when the proportion of the residual electric quantity is larger than a preset safety proportion, the output power of a transmitting terminal is adjusted, and the first output power or the second output power provided for the device to be charged is changed into third output power.
Specifically, for some batteries used by the device, such as a lithium battery, the battery life may be affected by the continuous charging after the battery is fully charged, so that after the battery is nearly fully charged, the output power of the transmitting terminal can be switched, the device is charged with lower output power, the charging speed of the device is reduced, and the user can take away the device which is about to be fully charged.
In an optional implementation scheme, when the ratio of the remaining power is greater than the preset safety ratio, a power sufficiency prompt is sent out.
Specifically, the manner of the sufficient power reminder includes, but is not limited to, voice broadcast and light flashing.
Example 2
On the basis of embodiment 1, referring to fig. 2, embodiment 2 of the present invention further provides a wireless power supply system, including:
the power supply module is used for wirelessly charging the equipment to be charged;
the information acquisition module is used for acquiring the charging speed and the equipment temperature of the equipment to be charged and acquiring the residual electric quantity proportion of the equipment to be charged;
the output regulation and control module is used for regulating the output power of the power supply module according to the charging speed and the equipment temperature of the equipment to be charged;
specifically, the output regulation and control module regulates the output power of the power supply module according to the charging speed and the device temperature information of the device to be charged, which are acquired by the information acquisition module;
the reminding module is used for sending out a reminding of sufficient electric quantity;
specifically, when the proportion of the residual electric quantity of the equipment to be charged is larger than the preset safety proportion, the reminding of sufficient electric quantity is sent out.
It will be appreciated that modifications and variations are possible to those skilled in the art in light of the above teachings, and it is intended to cover all such modifications and variations as fall within the scope of the appended claims. Parts of the description which are not described in detail are within the knowledge of the person skilled in the art.
Claims (8)
1. A method of wirelessly powering, the method comprising:
sending a detection signal of the equipment to be charged and receiving feedback information, if the feedback information shows that the equipment to be charged does not exist, keeping a standby state, and if the feedback information shows that the equipment to be charged exists, wirelessly charging the equipment to be charged by using first output power;
in the process of wirelessly charging the equipment to be charged by using the first output power, acquiring the charging speed of the equipment to be charged, judging whether the charging speed is greater than a first preset charging speed, if so, continuing to wirelessly charge the equipment to be charged by using the first output power, otherwise, replacing the first output power provided for the equipment to be charged with a second output power, and wirelessly charging the equipment to be charged by using the second output power;
after the first output power provided for the equipment to be charged is changed into the second output power, periodically acquiring the equipment temperature of the equipment to be charged, judging whether the equipment temperature is lower than a first preset temperature, if so, continuing to wirelessly charge the equipment to be charged by using the second output power, otherwise, changing the second output power provided for the equipment to be charged into the first output power again, and wirelessly charging the equipment to be charged by using the first output power;
the first output power is less than the second output power.
2. A wireless power supply method as claimed in claim 1, further comprising, before changing the first output power supplied to the device to be charged to the second output power:
and obtaining the current equipment temperature of the equipment to be charged, judging whether the current equipment temperature is lower than the first preset temperature, if so, replacing the first output power provided for the equipment to be charged with the second output power, and if not, continuing to wirelessly charge the equipment to be charged with the first output power.
3. The wireless power supply method according to claim 1, wherein for the process of wirelessly charging the device to be charged with the first output power, the method further comprises:
periodically acquiring the equipment temperature of the equipment to be charged, judging whether the equipment temperature is lower than the first preset temperature or not, if so, continuing to wirelessly charge the equipment to be charged by using the first output power, otherwise, replacing the first output power provided for the equipment to be charged with a third output power, and wirelessly charging the equipment to be charged by using the third output power;
the third output power is less than the first output power.
4. The wireless power supply method according to claim 1, wherein for the process of wirelessly charging the device to be charged with the first output power, the method further comprises:
acquiring the residual electric quantity of the equipment to be charged, acquiring the charging speed of the equipment to be charged for the equipment to be charged with the residual electric quantity smaller than the preset electric quantity, judging whether the charging speed is larger than a first preset charging speed, and if so, continuing to charge the equipment to be charged wirelessly by using the first output power;
otherwise, monitoring the temperature change state of the equipment to be charged within a preset time length, and judging whether the highest temperature of the equipment to be charged within the preset time length is less than a second preset temperature or not;
if so, wirelessly charging the equipment to be charged by using the second output power, otherwise, continuously wirelessly charging the equipment to be charged by using the first output power;
the method comprises the steps of obtaining the residual electric quantity of the equipment to be charged periodically after the second output power is used for wirelessly charging the equipment to be charged, obtaining the equipment temperature of the equipment to be charged when the residual electric quantity is larger than or equal to the emergency electric quantity, and replacing the second output power provided for the equipment to be charged with the first output power again if the equipment temperature is larger than the first preset temperature.
5. The wireless power supply method according to claim 4, wherein during the wireless charging of the device to be charged with the second output power, the method further comprises:
periodically acquiring the equipment temperature of the equipment to be charged, calculating the difference value between the equipment temperature and the second preset temperature after acquiring the equipment temperature each time, and judging whether the difference value is greater than a preset safety threshold value or not;
if so, continuing to wirelessly charge the equipment to be charged by using the second output power, periodically acquiring the residual electric quantity of the equipment to be charged, and replacing the second output power provided for the equipment to be charged with the first output power again after the residual electric quantity is greater than or equal to the emergency electric quantity;
otherwise, directly replacing the second output power provided for the equipment to be charged with the first output power.
6. A method of wirelessly powering as described in claim 3 and further comprising:
and when the residual electric quantity proportion is larger than a preset safety proportion, the first output power or the second output power provided for the equipment to be charged is changed into the third output power.
7. A method of wirelessly powering as in claim 6, further comprising:
and when the residual electric quantity proportion is larger than the preset safety proportion, sending out an electric quantity sufficiency prompt.
8. A wireless power supply system, characterized in that the system employs the wireless power supply method according to any one of claims 1 to 7, the system comprising:
the power supply module is used for wirelessly charging the equipment to be charged;
the information acquisition module is used for acquiring the charging speed and the equipment temperature of the equipment to be charged;
the output regulation and control module is used for regulating the output power of the power supply module according to the charging speed and the equipment temperature of the equipment to be charged;
and the reminding module is used for sending out a reminder that the electric quantity is sufficient.
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|---|---|
| CN115719994B (en) | 2023-06-13 |
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Effective date of registration: 20231108 Address after: No. 41, Zhongxin Road, Shiwan, Chancheng District, Foshan City, Guangdong Province Patentee after: FOSHAN ELECTRIC POWER DESIGN INSTITUTE Co.,Ltd. Patentee after: FOSHAN POWER SUPPLY BUREAU OF GUANGDONG POWER GRID Co.,Ltd. Address before: No. 41, Zhongxin Road, Shiwan, Chancheng District, Foshan City, Guangdong Province Patentee before: FOSHAN ELECTRIC POWER DESIGN INSTITUTE Co.,Ltd. |